1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 02 21:16:28 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16LroK-0006Fr-00; Wed, 2 Jan 2002 21:16:28 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9541A1112F4; Wed, 2 Jan 2002 21:06:22 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA21030 for linac-eng-list; Wed, 2 Jan 2002 13:58:07 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [192.234.106.2] ([192.234.106.2]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id NAA21026 for ; Wed, 2 Jan 2002 13:58:01 -0600 (CST) From: John.McGee@lvh.com Received: from no.name.available by [192.234.106.2] via smtpd (for plato1.aristotle.net [204.233.139.43]) with SMTP; 2 Jan 2002 19:58:01 UT X-Internal-ID: 3C30ED68000027EB Received: from lvh.com (192.234.106.35) by lvhlsgcs2.lvh.com (NPlex 2.0.108) for linac-eng@plato1.aristotle.net; 2 Jan 2002 14:54:44 -0500 Message-ID: Date: Wed, 2 Jan 2002 14:59:00 -0500 To: linac-eng@plato1.aristotle.net Subject: too much to do and no pay Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.McGee@lvh.com X-Internal-ID: 3C30ED68000027EB Date: Wed, 2 Jan 2002 14:59:00 -0500 To: linac-eng@plato1.aristotle.net Subject: too much to do and no pay Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I do believe they are taking great advantage of you. I was supervisor of the biomed dept. and they gave me one linac. It became very hard to keep everyone happy and the linac was brand new( relatively little tlc needed). I have since been moved to a new site with three 8 year old linacs(Elekta), one old sim, one new sim, and a very old CT. We are training a man for the other new unit but until then I am the man for that unit also. Salary range I believe should be in the mid fifty to low sixty range. My job title has been changed to equipment specialist and the range is $23.00 to $32.00. Hope this helps you in your struggle for MO MONEY. John McGee Lehigh Valley Hospital Allentown, PA. Please note that if you received this message in error,you are hereby notified that any dissemination of this communication is strictly prohibited. Please notify me immediately by reply e-mail and delete all copies of the original message. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 02:41:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Lwss-0006VY-00; Thu, 3 Jan 2002 02:41:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E517C1112F4; Thu, 3 Jan 2002 02:31:19 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id TAA27058 for linac-eng-list; Wed, 2 Jan 2002 19:21:06 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id TAA27054 for ; Wed, 2 Jan 2002 19:21:05 -0600 (CST) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Wed, 02 Jan 2002 18:20:32 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Wed, 2 Jan 2002 18:20:28 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D07523606C1@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato1.aristotle.net'" Subject: Siemens Mod P/S Breaker Popping Date: Wed, 2 Jan 2002 18:20:23 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato1.aristotle.net'" Subject: Siemens Mod P/S Breaker Popping Date: Wed, 2 Jan 2002 18:20:23 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi All, Happy New Year! Just wanted to thank those who responded to our problem with the Mod P/S circuit breaker popping on our MD-2. Turned out to be a arcing HVPS cable. It was arcing through the insulation to the metal on the diodes on top of one of the HVPS transformers. Blew some nice chunks out of the diodes. Thanks Again, Dan Watters UMC Tucson, Arizona > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 06:02:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16M01O-0006de-00; Thu, 3 Jan 2002 06:02:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 991061112F5; Thu, 3 Jan 2002 05:52:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA29662 for linac-eng-list; Wed, 2 Jan 2002 22:41:53 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA29658 for ; Wed, 2 Jan 2002 22:41:47 -0600 (CST) Received: (qmail 79579 invoked from network); 3 Jan 2002 04:40:55 -0000 Received: from unknown (HELO webmail04) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 3 Jan 2002 04:40:55 -0000 Message-ID: <3650187.1010032745655.JavaMail.root@webmail04> Date: Thu, 3 Jan 2002 12:39:05 +0800 (GMT+08:00) From: Jonathan Chan To: linac eng Subject: LMO warning Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 3 Jan 2002 12:39:05 +0800 (GMT+08:00) From: Jonathan Chan To: linac eng Subject: LMO warning Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Good Morning, Recently I made up a circuit to sound a buzzer for a few seconds (adjustable) in the treatment room before the radiographers can beam on. If the radiographers press the beam on key during this period, an HWFA will be generated. Idea is to warn any person not supposed to be in the room, and allow him / her to evacuate. (Reason of making such a mod. is quite obvious: some professional people got unintended exposure.) Provision is also made to mute the buzzer between fields. Anyone interested pls send an e-mail to me. This will only work on VARIAN's machine. And the schematic is in DXF format. Jonathan Chan 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 06:03:19 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16M02B-0006ls-00; Thu, 3 Jan 2002 06:03:19 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 342711112F5; Thu, 3 Jan 2002 05:53:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA29650 for linac-eng-list; Wed, 2 Jan 2002 22:40:18 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA29646 for ; Wed, 2 Jan 2002 22:40:16 -0600 (CST) Received: (qmail 78710 invoked from network); 3 Jan 2002 04:39:25 -0000 Received: from unknown (HELO webmail04) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 3 Jan 2002 04:39:25 -0000 Message-ID: <7702106.1010032655738.JavaMail.root@webmail04> Date: Thu, 3 Jan 2002 12:37:35 +0800 (GMT+08:00) From: Jonathan Chan To: linac eng Subject: VARIAN MLC Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 3 Jan 2002 12:37:35 +0800 (GMT+08:00) From: Jonathan Chan To: linac eng Subject: VARIAN MLC Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Good Morning, VARIAN advises customers to park their linacs at 90 or 270 deg to reduce damages made to collimator in case of water hose burst. What impact will this make to the MLC leaf motors, esp. when the MLC is in PARK mode? Any comments? This hospital has a machine dedicated to IMRT treatment. When I do the dose constancy check in the morning, I often initialize the MLC. Usually it is that time the initialization fails due to some bad leaf motors (moving too slowly). Will such a parking angle surface a dying motor? Jonathan Chan 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 12:55:14 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16M6So-0000VK-00; Thu, 3 Jan 2002 12:55:14 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D3E121112F5; Thu, 3 Jan 2002 12:44:56 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id FAA03235 for linac-eng-list; Thu, 3 Jan 2002 05:36:41 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA03231 for ; Thu, 3 Jan 2002 05:36:39 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g03Ba8000952; Thu, 3 Jan 2002 05:36:08 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g03Ba8P00948; Thu, 3 Jan 2002 05:36:08 -0600 (CST) Received: through eSafe SMTP Relay 1001527229; Thu Jan 03 05:35:32 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 3 Jan 2002 05:36:08 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5DB0@wmhmail.phci.org> From: "Williams, Rod" To: "'Jonathan Chan'" , linac eng Subject: RE: VARIAN MLC Date: Thu, 3 Jan 2002 05:36:06 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1944A.D53FE630" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Jonathan Chan'" , linac eng Subject: RE: VARIAN MLC Date: Thu, 3 Jan 2002 05:36:06 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1944A.D53FE630" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1944A.D53FE630 Content-Type: text/plain I hope you are not leaving the Mlc up and in the Park mode overnight, this will keep you quite busy changing motors. I have for the last 2.5 years on our 2100EXs been leaving the Gantry down at night, I have made a 3" hole in the bottom of the Boat so if there is a water leak it will be on the floor in the A.M. Also the MOD for turning of the MLC power supply at night has been working out very nicely, my optical readings have been staying up between P.M.s my motor failures are way down these MLCs have been very good to me. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL > -----Original Message----- > From: Jonathan Chan [SMTP:sky8808@hutchcity.com] > Sent: Wednesday, January 02, 2002 10:38 PM > To: linac eng > Subject: VARIAN MLC > > Good Morning, > > VARIAN advises customers to park their linacs at 90 or 270 deg to reduce > damages made to collimator in case of water hose burst. > What impact will this make to the MLC leaf motors, esp. when the MLC is in > PARK mode? > > Any comments? > > This hospital has a machine dedicated to IMRT treatment. When I do the > dose constancy check in the morning, I often initialize the MLC. > Usually it is that time the initialization fails due to some bad leaf > motors (moving too slowly). Will such a parking angle surface a dying > motor? > > Jonathan Chan ------_=_NextPart_001_01C1944A.D53FE630 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: VARIAN MLC

I hope you are not lea= ving the Mlc up and in the Park mode overnight, this will keep you quite = busy changing motors. I have for the last 2.5 years on our 2100EXs been l= eaving the Gantry down at night, I have made a 3" hole in the bottom= of the Boat so if there is a water leak it will be on the floor in the A= .M. Also the MOD for turning of the MLC power supply at night has been wo= rking out very nicely, my optical readings have been staying up between P= .M.s my motor failures are way down these MLCs have been very good to me.=

Rod.Williams@phci.org
WAUKESHA MEMORIAL HOSPITAL


    -----Original Message-----
    From:   Jonathan Chan [SMTP:sky8808@hutchcity.com]
    Sent:   Wednesday, January 02, 2002 10:38 PM
    To:     linac eng
    Subject:    &nbs= p;   VARIAN MLC

    Good Morning,

    VARIAN advises customers to park their= linacs at 90 or 270 deg to reduce damages made to collimator in case of = water hose burst.

    What impact will this make to the MLC = leaf motors, esp. when the MLC is in PARK mode?

    Any comments?

    This hospital has a machine dedicated = to IMRT treatment.  When I do the dose constancy check in the mornin= g, I often initialize the MLC.

    Usually it is that time the initializa= tion fails due to some bad leaf motors (moving too slowly).  Will su= ch a parking angle surface a dying motor?

    Jonathan Chan

------_=_NextPart_001_01C1944A.D53FE630-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 14:12:00 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16M7f5-00011W-00; Thu, 3 Jan 2002 14:11:59 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id EECB71112F3; Thu, 3 Jan 2002 14:01:41 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id GAA03848 for linac-eng-list; Thu, 3 Jan 2002 06:57:03 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA03844 for ; Thu, 3 Jan 2002 06:57:01 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g03CuV502381; Thu, 3 Jan 2002 06:56:31 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g03CuUP02377; Thu, 3 Jan 2002 06:56:30 -0600 (CST) Received: through eSafe SMTP Relay 1001527229; Thu Jan 03 06:55:54 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 3 Jan 2002 06:56:30 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5DB3@wmhmail.phci.org> From: "Williams, Rod" To: "'Jonathan Chan'" , "'linac eng'" Subject: RE: VARIAN MLC Date: Thu, 3 Jan 2002 06:56:26 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C19456.0DDCD880" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Jonathan Chan'" , "'linac eng'" Subject: RE: VARIAN MLC Date: Thu, 3 Jan 2002 06:56:26 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C19456.0DDCD880" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C19456.0DDCD880 Content-Type: text/plain I hope you are not leaving the Mlc up and in the Park mode overnight, this will keep you quite busy changing motors. I have for the last 2.5 years on our 2100EXs been leaving the Gantry down at night, I have made a 3" hole in the bottom of the Boat so if there is a water leak it will be on the floor in the A.M. Also the MOD for turning of the MLC power supply at night has been working out very nicely, my optical readings have been staying up between P.M.s my motor failures are way down these MLCs have been very good to me. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL > -----Original Message----- > From: Jonathan Chan [SMTP:sky8808@hutchcity.com] > Sent: Wednesday, January 02, 2002 10:38 PM > To: linac eng > Subject: VARIAN MLC > > Good Morning, > > VARIAN advises customers to park their linacs at 90 or 270 deg to reduce > damages made to collimator in case of water hose burst. > What impact will this make to the MLC leaf motors, esp. when the MLC is in > PARK mode? > > Any comments? > > This hospital has a machine dedicated to IMRT treatment. When I do the > dose constancy check in the morning, I often initialize the MLC. > Usually it is that time the initialization fails due to some bad leaf > motors (moving too slowly). Will such a parking angle surface a dying > motor? > > Jonathan Chan ------_=_NextPart_001_01C19456.0DDCD880 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: VARIAN MLC

I hope you are not lea= ving the Mlc up and in the Park mode overnight, this will keep you quite = busy changing motors. I have for the last 2.5 years on our 2100EXs been l= eaving the Gantry down at night, I have made a 3" hole in the bottom= of the Boat so if there is a water leak it will be on the floor in the A= .M. Also the MOD for turning of the MLC power supply at night has been wo= rking out very nicely, my optical readings have been staying up between P= .M.s my motor failures are way down these MLCs have been very good to me.=

Rod.Williams@phci.org
WAUKESHA MEMORIAL HOSPITAL


    -----Original Message-----
    From:   Jonathan Chan [SMTP:sky8808@hutchcity.com]
    Sent:   Wednesday, January 02, 2002 10:38 PM
    To:     linac eng
    Subject:    &nbs= p;   VARIAN MLC

    Good Morning,

    VARIAN advises customers to park their= linacs at 90 or 270 deg to reduce damages made to collimator in case of = water hose burst.

    What impact will this make to the MLC = leaf motors, esp. when the MLC is in PARK mode?

    Any comments?

    This hospital has a machine dedicated = to IMRT treatment.  When I do the dose constancy check in the mornin= g, I often initialize the MLC.

    Usually it is that time the initializa= tion fails due to some bad leaf motors (moving too slowly).  Will su= ch a parking angle surface a dying motor?

    Jonathan Chan

------_=_NextPart_001_01C19456.0DDCD880-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 14:50:56 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16M8Gm-0001NC-00; Thu, 3 Jan 2002 14:50:56 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 659201112F4; Thu, 3 Jan 2002 14:40:37 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id HAA04426 for linac-eng-list; Thu, 3 Jan 2002 07:34:17 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dcr-scan-1.carolinas.org ([199.72.24.211]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA04422 for ; Thu, 3 Jan 2002 07:34:15 -0600 (CST) Received: from dcr-fwl1-1 (unverified) by dcr-scan-1.carolinas.org (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Thu, 3 Jan 2002 08:29:38 -0500 Received: by dcr-xchg-e.carolinas.org with Internet Mail Service (5.5.2653.19) id ; Thu, 3 Jan 2002 08:34:08 -0500 Message-ID: From: "Klein, Richard" To: Jonathan Chan , linac eng Subject: RE: VARIAN MLC Date: Thu, 3 Jan 2002 08:34:08 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-40e79dc3-e421-4211-bc9d-2e23789171d1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Klein, Richard" To: Jonathan Chan , linac eng Subject: RE: VARIAN MLC Date: Thu, 3 Jan 2002 08:34:08 -0500 Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-40e79dc3-e421-4211-bc9d-2e23789171d1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------=_NextPartTM-000-40e79dc3-e421-4211-bc9d-2e23789171d1 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1945B.51E82E30" ------_=_NextPart_001_01C1945B.51E82E30 Content-Type: text/plain Follow the 90-90 or 270-270 degree rule, if the gantry is at 90 deg, then the collimator should be at 90 deg. This is only for MLC machines. The gantry can be below these angles. Make certain that the morning therapist rotates the gantry up from inside the room and checks for water while doing this (if they don't, then parking the gantry on its side is useless). Richard Klein Carolinas HealthCare System Charlotte, NC > -----Original Message----- > From: Jonathan Chan [SMTP:sky8808@hutchcity.com] > Sent: Wednesday, January 02, 2002 11:38 PM > To: linac eng > Subject: VARIAN MLC > > Good Morning, > > VARIAN advises customers to park their linacs at 90 or 270 deg to reduce > damages made to collimator in case of water hose burst. > What impact will this make to the MLC leaf motors, esp. when the MLC is in > PARK mode? > > Any comments? > > This hospital has a machine dedicated to IMRT treatment. When I do the > dose constancy check in the morning, I often initialize the MLC. > Usually it is that time the initialization fails due to some bad leaf > motors (moving too slowly). Will such a parking angle surface a dying > motor? > > Jonathan Chan *********************************************************************** This electronic message may contain information that is confidential and/or legally privileged. It is intended only for the use of the individual(s) and entity named as recipients in the message. If you are not an intended recipient of this message, please notify the sender immediately and delete the material from any computer. Do not deliver, distribute or copy this message, and do not disclose its contents or take any action in reliance on the information it contains. Thank you. ------_=_NextPart_001_01C1945B.51E82E30 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: VARIAN MLC

Follow the 90-90 or 270-= 270 degree rule, if the gantry is at 90 deg, then the collimator should be = at 90 deg. This is only for MLC machines. The gantry can be below these ang= les. Make certain that the morning therapist rotates the gantry up from ins= ide the room and checks for water while doing this (if they don't, then par= king the gantry on its side is useless).

Richard Klein
Carolinas HealthCare Sy= stem
Charlotte, NC

    -----Original Message-----
    From:   Jonathan Chan [SMTP:sky8808@hutchcity.com]
    Sent:   Wednesday, January 02, 2002 11:38 PM
    To:    = linac eng
    Subject:     =    VARIAN MLC

    Good Morning,

    VARIAN advises customers to park their l= inacs at 90 or 270 deg to reduce damages made to collimator in case of wate= r hose burst.

    What impact will this make to the MLC le= af motors, esp. when the MLC is in PARK mode?

    Any comments?

    This hospital has a machine dedicated to= IMRT treatment.  When I do the dose constancy check in the morning, I= often initialize the MLC.

    Usually it is that time the initializati= on fails due to some bad leaf motors (moving too slowly).  Will such a= parking angle surface a dying motor?

    Jonathan Chan



***********************************************************************
This electronic message may contain information that is confidential and/or= legally privileged. It is intended only for the use of the individual(s) = and entity named as recipients in the message. If you are not an intended = recipient of this message, please notify the sender immediately and delete = the material from any computer. Do not deliver, distribute or copy this mes= sage, and do not disclose its contents or take any action in reliance on th= e information it contains. Thank you.
 ------_=_NextPart_001_01C1945B.51E82E30-- ------=_NextPartTM-000-40e79dc3-e421-4211-bc9d-2e23789171d1-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 17:24:25 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MAfJ-0002KU-00; Thu, 3 Jan 2002 17:24:25 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6215B1112F1; Thu, 3 Jan 2002 17:14:05 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA06574 for linac-eng-list; Thu, 3 Jan 2002 10:06:15 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA06570 for ; Thu, 3 Jan 2002 10:06:14 -0600 (CST) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.9.3+Sun/8.9.3) with ESMTP id JAA03592; Thu, 3 Jan 2002 09:05:20 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.23.113]) by icelus.cancerboard.ab.ca (SendmailServer-1.0.4/8.11.1) with ESMTP id g03G5o126227; Thu, 3 Jan 2002 09:05:50 -0700 (MST) Message-ID: <3C34819E.12C4BB86@cancerboard.ab.ca> Date: Thu, 03 Jan 2002 09:06:54 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: Jonathan Chan Cc: linac eng Subject: Re: VARIAN MLC References: <7702106.1010032655738.JavaMail.root@webmail04> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 03 Jan 2002 09:06:54 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Accept-Language: en To: Jonathan Chan Cc: linac eng Subject: Re: VARIAN MLC Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Greetings in this New Year, With regards to your MLC parked at night, if it is a Millennium MLC, refer to Varian's Customer Service Bulletin CTB-130. Basically it says that turning off the MLC controller at night will save you the woes of multiple motor replacements. We also have 52 leaf MkIIs but leave the controllers on with no apparent effects. Just ensure that your gantry is back to 0 or 180 for initializing. Speaking of initialization, you comment on often initializing the MLC during dose constancy checks. Is this in addition to the initialization done in the morning or separate? Varian recommends that both Millennium and the Mark II to initialize every day before treatment and in the case of the older MkIIs after 250 patient fields. This is in the books but like a lot of documentation buried in numerous places (Varian take note) and often difficult to find. Ed Jonathan Chan wrote: > Good Morning, > > VARIAN advises customers to park their linacs at 90 or 270 deg to reduce damages made to collimator in case of water hose burst. > What impact will this make to the MLC leaf motors, esp. when the MLC is in PARK mode? > > Any comments? > > This hospital has a machine dedicated to IMRT treatment. When I do the dose constancy check in the morning, I often initialize the MLC. > Usually it is that time the initialization fails due to some bad leaf motors (moving too slowly). Will such a parking angle surface a dying motor? > > Jonathan Chan As usual, these opinions are mine and in no way reflect the policy or views of the Tom Baker Cancer Centre, etc... -- Ed Rymes, B.Sc., C-Tech Technical Equipment Officer Dept. of Medical Physics Tom Baker Cancer Centre 1331 29th Street, NW Calgary, AB T2N 4N2 403-670-1791 403-670-2327 fax edwardry@cancerboard.ab.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 20:21:22 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MDQY-0002Ze-00; Thu, 3 Jan 2002 20:21:22 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0682F1112F1; Thu, 3 Jan 2002 20:10:59 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id MAA09560 for linac-eng-list; Thu, 3 Jan 2002 12:55:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from user1.channel1.com (IDENT:root@user1.channel1.com [199.1.13.9]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA09551 for ; Thu, 3 Jan 2002 12:54:59 -0600 (CST) Received: from martin.channel1.com ([64.13.193.198]) by user1.channel1.com (8.9.3/8.9.3) with ESMTP id NAA10743 for ; Thu, 3 Jan 2002 13:54:57 -0500 (EST) X-Envelope-To: Message-Id: <5.1.0.14.0.20020103134848.0297a630@pop.channel1.com> X-Sender: mfraser@pop.channel1.com X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Thu, 03 Jan 2002 13:57:48 -0500 To: linac-eng@plato1.aristotle.net From: Martin Fraser Subject: VARIAN MLC - Morning initialization In-Reply-To: <3C34819E.12C4BB86@cancerboard.ab.ca> References: <7702106.1010032655738.JavaMail.root@webmail04> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Envelope-To: X-Sender: mfraser@pop.channel1.com Date: Thu, 03 Jan 2002 13:57:48 -0500 To: linac-eng@plato1.aristotle.net From: Martin Fraser Subject: VARIAN MLC - Morning initialization In-Reply-To: <3C34819E.12C4BB86@cancerboard.ab.ca> Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi all, I wonder if anyone shares our experience - our 80 leaf MLC generally prefers to be initialized at gantry 90 or 270, with collimator at 180. When all motors are strong, it works at 180 fine but as soon as one or two motors get a little old, we find we can only initialize on the side. this seems to me perfectly understandable - in this orientation, there is the minimum friction (leaves move up and down, not riding heavily on their track or neighbor) and I conclude that frictional force exceeds gravity - Yet Service personnel seen shocked at this. Our MLC gets regular PMI's and so leaves are not particularly dirty, we've found this tendency since the machine was new in '98. At 09:06 AM 1/3/02 -0700, you wrote: >Greetings in this New Year, > With regards to your MLC parked at night, if it is a Millennium MLC, > refer to Varian's Customer Service Bulletin CTB-130. Basically it says that >turning off the MLC controller at night will save you the woes of multiple >motor replacements. We also have 52 leaf MkIIs but leave the controllers on >with no apparent effects. Just ensure that your gantry is back to 0 or 180 >for initializing. Speaking of initialization, you comment on often >initializing the MLC during dose constancy checks. Is this in addition to >the initialization done in the morning or separate? Varian recommends that 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 20:56:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MDyw-0002aZ-00; Thu, 3 Jan 2002 20:56:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1DD5B1112F1; Thu, 3 Jan 2002 20:46:30 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA10181 for linac-eng-list; Thu, 3 Jan 2002 13:39:11 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f63.law8.hotmail.com [216.33.241.63]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA10174 for ; Thu, 3 Jan 2002 13:39:06 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 3 Jan 2002 11:38:08 -0800 Received: from 198.160.134.100 by lw8fd.law8.hotmail.msn.com with HTTP; Thu, 03 Jan 2002 19:38:07 GMT X-Originating-IP: [198.160.134.100] From: "Jose Villegas" To: rod.williams@phci.org Cc: linac-eng@plato1.aristotle.net Subject: RE: VARIAN MLC Date: Thu, 03 Jan 2002 14:38:07 -0500 Mime-Version: 1.0 Content-Type: text/html Message-ID: X-OriginalArrivalTime: 03 Jan 2002 19:38:08.0198 (UTC) FILETIME=[2BAB0660:01C1948E] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [198.160.134.100] From: "Jose Villegas" To: rod.williams@phci.org Cc: linac-eng@plato1.aristotle.net Subject: RE: VARIAN MLC Date: Thu, 03 Jan 2002 14:38:07 -0500 Content-Type: text/html X-OriginalArrivalTime: 03 Jan 2002 19:38:08.0198 (UTC) FILETIME=[2BAB0660:01C1948E] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk

Wouldn't the water go in to the couch pit?

>From: "Williams, Rod"
>To: "'Jonathan Chan'" , linac eng
>Subject: RE: VARIAN MLC
>Date: Thu, 3 Jan 2002 05:36:06 -0600
>
>I hope you are not leaving the Mlc up and in the Park mode overnight, this
>will keep you quite busy changing motors. I have for the last 2.5 years on
>our 2100EXs been leaving the Gantry down at night, I have made a 3" hole in
>the bottom of the Boat so if there is a water leak it will be on the floor
>in the A.M. Also the MOD for turning of the MLC power supply at night has
>been working out very nicely, my optical readings have been staying up
>between P.M.s my motor failures are way down these MLCs have been very good
>to me.
>
>Rod.Williams@phci.org
>WAUKESHA MEMORIAL HOSPITAL
>
>
> > -----Original Message-----
> > From: Jonathan Chan [SMTP:sky8808@hutchcity.com]
> > Sent: Wednesday, January 02, 2002 10:38 PM
> > To: linac eng
> > Subject: VARIAN MLC
> >
> > Good Morning,
> >
> > VARIAN advises customers to park their linacs at 90 or 270 deg to reduce
> > damages made to collimator in case of water hose burst.
> > What impact will this make to the MLC leaf motors, esp. when the MLC is in
> > PARK mode?
> >
> > Any comments?
> >
> > This hospital has a machine dedicated to IMRT treatment. When I do the
> > dose constancy check in the morning, I often initialize the MLC.
> > Usually it is that time the initialization fails due to some bad leaf
> > motors (moving too slowly). Will such a parking angle surface a dying
> > motor?
> >
> > Jonathan Chan

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1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 22:20:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MFIE-0002du-00; Thu, 3 Jan 2002 22:20:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8F9761112F1; Thu, 3 Jan 2002 22:10:30 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA12050 for linac-eng-list; Thu, 3 Jan 2002 15:02:58 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA12046 for ; Thu, 3 Jan 2002 15:02:57 -0600 (CST) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Thu, 3 Jan 2002 16:02:25 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA37@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: 1800 WATER LEAK IN GUIDE Date: Thu, 3 Jan 2002 16:02:25 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: 1800 WATER LEAK IN GUIDE Date: Thu, 3 Jan 2002 16:02:25 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We had a leak inside the sled near the location you m > -----Original Message----- > From: Lockhart, Ryan [SMTP:LockhartR@covhealth.com] > Sent: Wednesday, January 02, 2002 11:52 AM > To: 'linac-eng@plato1.aristotle.net' > Subject: 1800 WATER LEAK IN GUIDE > > I requested help a week or two ago about the strange smell in our 1800 > vault. I have not found the source of the smell yet, but I do appreciate > all > of the responses. > > Right now, the smell is the least of my worries. This morning I got > called > about a water leak. I found the leak at the 2 copper pipes leading into > the > guide about 18 inches in front of the gun. I cannot see the exact source > of > the leak. Is there any way to repair a leak in there or are we looking at > the big purchase? We are scheduled to replace this machine in July of > this > year, it looks like it may be sooner. > > On another subject, I am a biomed tech with the usual biomed > responsibilities. We cover 3 hospitals, several clinics, and I am > responsible for 2 accelerators, an old sim, and a new CT sim. Also, one > other tech and I also take care of 3 dialysis centers. Is this a common > situation out there or are most of you dedicated to accelerators? I don't > feel I'm able to give the accelerators the attention they need. And, as > with most of you, I don't feel I'm fairly compensated. Does anybody know > the average pay range for somebody with those responsibilities and about 8 > years of biomed experience? > > Thank you for your help. > > Ryan Lockhart > Covenant Medical Center > Waterloo, IA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 22:21:14 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MFIY-0002dx-00; Thu, 3 Jan 2002 22:21:14 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B22BD1112F1; Thu, 3 Jan 2002 22:10:50 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA12082 for linac-eng-list; Thu, 3 Jan 2002 15:04:55 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA12078 for ; Thu, 3 Jan 2002 15:04:54 -0600 (CST) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Thu, 3 Jan 2002 16:04:23 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA38@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: 1800 WATER LEAK IN GUIDE Date: Thu, 3 Jan 2002 16:04:21 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: 1800 WATER LEAK IN GUIDE Date: Thu, 3 Jan 2002 16:04:21 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We had a leak in a 2100 in a similar place. Varian was able to fix it by removing the sled, and working with it on the floor, since it was near the gun and the outer part of the sled near the gun comes off. > -----Original Message----- > From: Lockhart, Ryan [SMTP:LockhartR@covhealth.com] > Sent: Wednesday, January 02, 2002 11:52 AM > To: 'linac-eng@plato1.aristotle.net' > Subject: 1800 WATER LEAK IN GUIDE > > I requested help a week or two ago about the strange smell in our 1800 > vault. I have not found the source of the smell yet, but I do appreciate > all > of the responses. > > Right now, the smell is the least of my worries. This morning I got > called > about a water leak. I found the leak at the 2 copper pipes leading into > the > guide about 18 inches in front of the gun. I cannot see the exact source > of > the leak. Is there any way to repair a leak in there or are we looking at > the big purchase? We are scheduled to replace this machine in July of > this > year, it looks like it may be sooner. > > On another subject, I am a biomed tech with the usual biomed > responsibilities. We cover 3 hospitals, several clinics, and I am > responsible for 2 accelerators, an old sim, and a new CT sim. Also, one > other tech and I also take care of 3 dialysis centers. Is this a common > situation out there or are most of you dedicated to accelerators? I don't > feel I'm able to give the accelerators the attention they need. And, as > with most of you, I don't feel I'm fairly compensated. Does anybody know > the average pay range for somebody with those responsibilities and about 8 > years of biomed experience? > > Thank you for your help. > > Ryan Lockhart > Covenant Medical Center > Waterloo, IA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 22:30:52 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MFRr-0002eF-00; Thu, 3 Jan 2002 22:30:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 178D11112F1; Thu, 3 Jan 2002 22:20:27 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA12255 for linac-eng-list; Thu, 3 Jan 2002 15:15:07 -0600 (CST) Received: from hafnium.mcis.singnet.com.sg (hafnium.singnet.com.sg [165.21.74.90]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA12251 for ; Thu, 3 Jan 2002 15:15:05 -0600 (CST) Received: from mail pickup service by hafnium.mcis.singnet.com.sg with Microsoft SMTPSVC; Fri, 4 Jan 2002 05:12:37 +0800 Received: from mx16.singnet.com.sg ([165.21.74.116]) by hafnium.mcis.singnet.com.sg with Microsoft SMTPSVC(5.5.1877.687.68); Fri, 4 Jan 2002 03:38:25 +0800 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by mx16.singnet.com.sg (8.11.5/8.11.5) with ESMTP id g03JRIL16329; Fri, 4 Jan 2002 03:27:18 +0800 Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id MAA09560 for linac-eng-list; Thu, 3 Jan 2002 12:55:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from user1.channel1.com (IDENT:root@user1.channel1.com [199.1.13.9]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA09551 for ; Thu, 3 Jan 2002 12:54:59 -0600 (CST) Received: from martin.channel1.com ([64.13.193.198]) by user1.channel1.com (8.9.3/8.9.3) with ESMTP id NAA10743 for ; Thu, 3 Jan 2002 13:54:57 -0500 (EST) X-Envelope-To: Message-Id: <5.1.0.14.0.20020103134848.0297a630@pop.channel1.com> X-Sender: mfraser@pop.channel1.com X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Thu, 03 Jan 2002 13:57:48 -0500 To: linac-eng@plato1.aristotle.net From: Martin Fraser Subject: VARIAN MLC - Morning initialization In-Reply-To: <3C34819E.12C4BB86@cancerboard.ab.ca> References: <7702106.1010032655738.JavaMail.root@webmail04> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Envelope-To: X-Sender: mfraser@pop.channel1.com Date: Thu, 03 Jan 2002 13:57:48 -0500 To: linac-eng@plato1.aristotle.net From: Martin Fraser Subject: VARIAN MLC - Morning initialization In-Reply-To: <3C34819E.12C4BB86@cancerboard.ab.ca> Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi all, I wonder if anyone shares our experience - our 80 leaf MLC generally prefers to be initialized at gantry 90 or 270, with collimator at 180. When all motors are strong, it works at 180 fine but as soon as one or two motors get a little old, we find we can only initialize on the side. this seems to me perfectly understandable - in this orientation, there is the minimum friction (leaves move up and down, not riding heavily on their track or neighbor) and I conclude that frictional force exceeds gravity - Yet Service personnel seen shocked at this. Our MLC gets regular PMI's and so leaves are not particularly dirty, we've found this tendency since the machine was new in '98. At 09:06 AM 1/3/02 -0700, you wrote: >Greetings in this New Year, > With regards to your MLC parked at night, if it is a Millennium MLC, > refer to Varian's Customer Service Bulletin CTB-130. Basically it says that >turning off the MLC controller at night will save you the woes of multiple >motor replacements. We also have 52 leaf MkIIs but leave the controllers on >with no apparent effects. Just ensure that your gantry is back to 0 or 180 >for initializing. Speaking of initialization, you comment on often >initializing the MLC during dose constancy checks. Is this in addition to >the initialization done in the morning or separate? Varian recommends that 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 23:23:01 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MGGL-0002gV-00; Thu, 3 Jan 2002 23:23:01 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B2E731112F1; Thu, 3 Jan 2002 23:12:33 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id QAA14900 for linac-eng-list; Thu, 3 Jan 2002 16:00:05 -0600 (CST) Received: from hafnium.mcis.singnet.com.sg (hafnium.singnet.com.sg [165.21.74.90]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA14896 for ; Thu, 3 Jan 2002 16:00:03 -0600 (CST) Received: from mail pickup service by hafnium.mcis.singnet.com.sg with Microsoft SMTPSVC; Fri, 4 Jan 2002 05:50:55 +0800 Received: from mx17.singnet.com.sg ([165.21.74.117]) by hafnium.mcis.singnet.com.sg with Microsoft SMTPSVC(5.5.1877.687.68); Fri, 4 Jan 2002 04:09:54 +0800 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by mx17.singnet.com.sg (8.11.5/8.11.5) with ESMTP id g03K6FM07437; Fri, 4 Jan 2002 04:06:15 +0800 Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA10181 for linac-eng-list; Thu, 3 Jan 2002 13:39:11 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f63.law8.hotmail.com [216.33.241.63]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA10174 for ; Thu, 3 Jan 2002 13:39:06 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 3 Jan 2002 11:38:08 -0800 Received: from 198.160.134.100 by lw8fd.law8.hotmail.msn.com with HTTP; Thu, 03 Jan 2002 19:38:07 GMT X-Originating-IP: [198.160.134.100] From: "Jose Villegas" To: rod.williams@phci.org Cc: linac-eng@plato1.aristotle.net Subject: RE: VARIAN MLC Date: Thu, 03 Jan 2002 14:38:07 -0500 Mime-Version: 1.0 Content-Type: text/html Message-ID: X-OriginalArrivalTime: 03 Jan 2002 19:38:08.0198 (UTC) FILETIME=[2BAB0660:01C1948E] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [198.160.134.100] From: "Jose Villegas" To: rod.williams@phci.org Cc: linac-eng@plato1.aristotle.net Subject: RE: VARIAN MLC Date: Thu, 03 Jan 2002 14:38:07 -0500 Content-Type: text/html X-OriginalArrivalTime: 03 Jan 2002 19:38:08.0198 (UTC) FILETIME=[2BAB0660:01C1948E] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk

Wouldn't the water go in to the couch pit?

>From: "Williams, Rod"
>To: "'Jonathan Chan'" , linac eng
>Subject: RE: VARIAN MLC
>Date: Thu, 3 Jan 2002 05:36:06 -0600
>
>I hope you are not leaving the Mlc up and in the Park mode overnight, this
>will keep you quite busy changing motors. I have for the last 2.5 years on
>our 2100EXs been leaving the Gantry down at night, I have made a 3" hole in
>the bottom of the Boat so if there is a water leak it will be on the floor
>in the A.M. Also the MOD for turning of the MLC power supply at night has
>been working out very nicely, my optical readings have been staying up
>between P.M.s my motor failures are way down these MLCs have been very good
>to me.
>
>Rod.Williams@phci.org
>WAUKESHA MEMORIAL HOSPITAL
>
>
> > -----Original Message-----
> > From: Jonathan Chan [SMTP:sky8808@hutchcity.com]
> > Sent: Wednesday, January 02, 2002 10:38 PM
> > To: linac eng
> > Subject: VARIAN MLC
> >
> > Good Morning,
> >
> > VARIAN advises customers to park their linacs at 90 or 270 deg to reduce
> > damages made to collimator in case of water hose burst.
> > What impact will this make to the MLC leaf motors, esp. when the MLC is in
> > PARK mode?
> >
> > Any comments?
> >
> > This hospital has a machine dedicated to IMRT treatment. When I do the
> > dose constancy check in the morning, I often initialize the MLC.
> > Usually it is that time the initialization fails due to some bad leaf
> > motors (moving too slowly). Will such a parking angle surface a dying
> > motor?
> >
> > Jonathan Chan

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1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 03 23:42:28 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MGZA-0002hD-00; Thu, 3 Jan 2002 23:42:28 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7AA191112F1; Thu, 3 Jan 2002 23:32:03 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id QAA15252 for linac-eng-list; Thu, 3 Jan 2002 16:23:21 -0600 (CST) Received: from fluorine.mcis.singnet.com.sg (fluorine.singnet.com.sg [165.21.74.72]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA15248 for ; Thu, 3 Jan 2002 16:23:19 -0600 (CST) Received: from mail pickup service by fluorine.mcis.singnet.com.sg with Microsoft SMTPSVC; Fri, 4 Jan 2002 06:07:14 +0800 Received: from mx11.singnet.com.sg ([165.21.74.121]) by fluorine.mcis.singnet.com.sg with Microsoft SMTPSVC(5.5.1877.687.68); Fri, 4 Jan 2002 05:45:03 +0800 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by mx11.singnet.com.sg (8.11.5/8.11.5) with ESMTP id g03LjDH03079; Fri, 4 Jan 2002 05:45:13 +0800 Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA12255 for linac-eng-list; Thu, 3 Jan 2002 15:15:07 -0600 (CST) Received: from hafnium.mcis.singnet.com.sg (hafnium.singnet.com.sg [165.21.74.90]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA12251 for ; Thu, 3 Jan 2002 15:15:05 -0600 (CST) Received: from mail pickup service by hafnium.mcis.singnet.com.sg with Microsoft SMTPSVC; Fri, 4 Jan 2002 05:12:37 +0800 Received: from mx16.singnet.com.sg ([165.21.74.116]) by hafnium.mcis.singnet.com.sg with Microsoft SMTPSVC(5.5.1877.687.68); Fri, 4 Jan 2002 03:38:25 +0800 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by mx16.singnet.com.sg (8.11.5/8.11.5) with ESMTP id g03JRIL16329; Fri, 4 Jan 2002 03:27:18 +0800 Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id MAA09560 for linac-eng-list; Thu, 3 Jan 2002 12:55:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from user1.channel1.com (IDENT:root@user1.channel1.com [199.1.13.9]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA09551 for ; Thu, 3 Jan 2002 12:54:59 -0600 (CST) Received: from martin.channel1.com ([64.13.193.198]) by user1.channel1.com (8.9.3/8.9.3) with ESMTP id NAA10743 for ; Thu, 3 Jan 2002 13:54:57 -0500 (EST) X-Envelope-To: Message-Id: <5.1.0.14.0.20020103134848.0297a630@pop.channel1.com> X-Sender: mfraser@pop.channel1.com X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Thu, 03 Jan 2002 13:57:48 -0500 To: linac-eng@plato1.aristotle.net From: Martin Fraser Subject: VARIAN MLC - Morning initialization In-Reply-To: <3C34819E.12C4BB86@cancerboard.ab.ca> References: <7702106.1010032655738.JavaMail.root@webmail04> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Envelope-To: X-Sender: mfraser@pop.channel1.com Date: Thu, 03 Jan 2002 13:57:48 -0500 To: linac-eng@plato1.aristotle.net From: Martin Fraser Subject: VARIAN MLC - Morning initialization In-Reply-To: <3C34819E.12C4BB86@cancerboard.ab.ca> Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi all, I wonder if anyone shares our experience - our 80 leaf MLC generally prefers to be initialized at gantry 90 or 270, with collimator at 180. When all motors are strong, it works at 180 fine but as soon as one or two motors get a little old, we find we can only initialize on the side. this seems to me perfectly understandable - in this orientation, there is the minimum friction (leaves move up and down, not riding heavily on their track or neighbor) and I conclude that frictional force exceeds gravity - Yet Service personnel seen shocked at this. Our MLC gets regular PMI's and so leaves are not particularly dirty, we've found this tendency since the machine was new in '98. At 09:06 AM 1/3/02 -0700, you wrote: >Greetings in this New Year, > With regards to your MLC parked at night, if it is a Millennium MLC, > refer to Varian's Customer Service Bulletin CTB-130. Basically it says that >turning off the MLC controller at night will save you the woes of multiple >motor replacements. We also have 52 leaf MkIIs but leave the controllers on >with no apparent effects. Just ensure that your gantry is back to 0 or 180 >for initializing. Speaking of initialization, you comment on often >initializing the MLC during dose constancy checks. Is this in addition to >the initialization done in the morning or separate? Varian recommends that 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 04 03:40:57 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MKHx-0002pD-00; Fri, 4 Jan 2002 03:40:57 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BC7B81112F1; Fri, 4 Jan 2002 03:30:29 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id UAA18395 for linac-eng-list; Thu, 3 Jan 2002 20:13:38 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m02.mx.aol.com (imo-m02.mx.aol.com [64.12.136.5]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA18391 for ; Thu, 3 Jan 2002 20:13:37 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-m02.mx.aol.com (mail_out_v31_r1.9.) id c.83.14ce3583 (4505) for ; Thu, 3 Jan 2002 21:13:04 -0500 (EST) Message-ID: <83.14ce3583.296669b0@aol.com> Date: Thu, 3 Jan 2002 21:13:04 EST Subject: LASER DIODES To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Thu, 3 Jan 2002 21:13:04 EST Subject: LASER DIODES To: linac-eng@plato1.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Everyone ... I am in need of some replacement Laser Diodes for the URDC ISOLITE 4 lasers, part number 67A010. URDC wants a high price for the replacements. I seem to recall a post some time ago that indicated that generic "diodes" were available from another source. Can anyone help me out with this? Thank you in advance for your assistance. Garry 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 04 04:20:38 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16MKuM-0002qL-00; Fri, 4 Jan 2002 04:20:38 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 23A3F1112F1; Fri, 4 Jan 2002 04:10:10 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id VAA19131 for linac-eng-list; Thu, 3 Jan 2002 21:05:44 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id VAA19127 for ; Thu, 3 Jan 2002 21:05:41 -0600 (CST) Received: (qmail 15461 invoked from network); 4 Jan 2002 03:04:45 -0000 Received: from unknown (HELO webmailtest) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 4 Jan 2002 03:04:45 -0000 Message-ID: <1490759.1010113366508.JavaMail.root@webmailtest> Date: Fri, 4 Jan 2002 11:02:46 +0800 (HKT) From: Jonathan Chan To: Ed Rymes Subject: Re: VARIAN MLC Cc: linac eng Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 4 Jan 2002 11:02:46 +0800 (HKT) From: Jonathan Chan To: Ed Rymes Subject: Re: VARIAN MLC Cc: linac eng Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Dear Ed, Thanks. For the Mill. MLC, the reason of turning off the controller is to remove any leaf motor driving signals to the motor, esp. the half-width leaf motor. The algorithm has some bugs that will keep the motors driving to the target position, and this often causes the motor to spin back and forth. So after a long night, a very thin of oxide may build up in the motor's commutator. The fix is often to take out the motor and spin it manually, to wipe out the oxide film (hopefully). And for the Mark Series, this has no such a problem. The dedicated machine treats for more than 10 hours a day for IMRT treatments. So the MLC will move over 200 fields in one single day. And initializing the MLC very morning does reduce a lot of problems related to position errors. That is why I do this during the morning checkout time. Rgds, Jonathan Chan Queen Mary Hospital HONG KONG -----Original Message----- From: Ed Rymes Sent: Fri Jan 04 00:06:54 HKT 2002 To: Jonathan Chan Cc: Jonathan Chan Subject: Re: VARIAN MLC Greetings in this New Year, With regards to your MLC parked at night, if it is a Millennium MLC, refer to Varian's Customer Service Bulletin CTB-130. Basically it says that turning off the MLC controller at night will save you the woes of multiple motor replacements. We also have 52 leaf MkIIs but leave the controllers on with no apparent effects. Just ensure that your gantry is back to 0 or 180 for initializing. Speaking of initialization, you comment on often initializing the MLC during dose constancy checks. Is this in addition to the initialization done in the morning or separate? Varian recommends that both Millennium and the Mark II to initialize every day before treatment and in the case of the older MkIIs after 250 patient fields. This is in the books but like a lot of documentation buried in numerous places (Varian take note) and often difficult to find. Ed Jonathan Chan wrote: > Good Morning, > > VARIAN advises customers to park their linacs at 90 or 270 deg to reduce damages made to collimator in case of water hose burst. > What impact will this make to the MLC leaf motors, esp. when the MLC is in PARK mode? > > Any comments? > > This hospital has a machine dedicated to IMRT treatment. When I do the dose constancy check in the morning, I often initialize the MLC. > Usually it is that time the initialization fails due to some bad leaf motors (moving too slowly). Will such a parking angle surface a dying motor? > > Jonathan Chan As usual, these opinions are mine and in no way reflect the policy or views of the Tom Baker Cancer Centre, etc... -- Ed Rymes, B.Sc., C-Tech Technical Equipment Officer Dept. of Medical Physics Tom Baker Cancer Centre 1331 29th Street, NW Calgary, AB T2N 4N2 403-670-1791 403-670-2327 fax edwardry@cancerboard.ab.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 01:17:41 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NNTx-00031W-00; Mon, 7 Jan 2002 01:17:41 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E52CD1112F1; Mon, 7 Jan 2002 01:06:23 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id SAA10803 for linac-eng-list; Sun, 6 Jan 2002 18:01:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA10799 for ; Sun, 6 Jan 2002 18:00:58 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id MAA25687 for ; Mon, 7 Jan 2002 12:56:39 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Mon, 7 Jan 2002 13:00:13 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 07 Jan 2002 12:59:59 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 07 Jan 2002 12:59:56 +1300 From: "Dave Pinchin" To: Subject: Varian PV MkII network Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id SAA10800 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 07 Jan 2002 12:59:56 +1300 From: "Dave Pinchin" To: Subject: Varian PV MkII network Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id SAA10800 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day, I have a niggly intermittent network problem. Occasionally (once per two months but three times this morning) when logging in to the net on a PV station we get a 'Domain controller could not be found' message. A local login is accomplished, a quick check of network neighbourhood shows all the other stations are accessible. Any insight would be appreciated. Dave. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 07:18:47 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NT7O-0003e3-00; Mon, 7 Jan 2002 07:18:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB12D1112F1; Mon, 7 Jan 2002 07:07:24 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id AAA15203 for linac-eng-list; Mon, 7 Jan 2002 00:00:43 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from UIHC-MXII.UIHC.UIOWA.EDU (uihc-mxii.uihc.uiowa.edu [129.255.210.177]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id AAA15199 for ; Mon, 7 Jan 2002 00:00:42 -0600 (CST) Received: from uihc-bh.uihc.uiowa.edu ([129.255.210.76]) by UIHC-MXII.UIHC.UIOWA.EDU (8.11.2/8.11.2) with ESMTP id g075uXg23955 for ; Sun, 6 Jan 2002 23:56:33 -0600 Received: by uihc-bh.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 7 Jan 2002 00:00:27 -0600 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24B8F67C@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato1.aristotle.net'" Subject: CL-1800 smell Date: Thu, 20 Dec 2001 16:17:19 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato1.aristotle.net'" Subject: CL-1800 smell Date: Thu, 20 Dec 2001 16:17:19 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is probably not it but you may want to sniff around the gundeck crowbar coil Joe Schebler 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 13:54:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NZIb-0006zJ-00; Mon, 7 Jan 2002 13:54:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 811DB1112F1; Mon, 7 Jan 2002 13:43:18 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA18891 for linac-eng-list; Mon, 7 Jan 2002 06:30:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsp074.netvigator.com (imsp074.netvigator.com [218.102.23.129]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA18887 for ; Mon, 7 Jan 2002 06:30:44 -0600 (CST) Received: from yeung (pcd438092.netvigator.com [203.218.228.92]) by imsp074.netvigator.com (8.9.3+Sun/8.9.1) with SMTP id UAA02246 for ; Mon, 7 Jan 2002 20:30:20 +0800 (HKT) Message-ID: <000e01c19777$28499d60$57dffea9@yeung> From: "k yeung" To: Subject: Re: Radiotherapy machine for animals Date: Mon, 7 Jan 2002 20:30:56 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C197BA.35E69660" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Radiotherapy machine for animals Date: Mon, 7 Jan 2002 20:30:56 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C197BA.35E69660" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C197BA.35E69660 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Could anyone advise the name of suppliers of radiotherapy machine for = animals? Thanks in advance. Kim Yeung ------=_NextPart_000_000B_01C197BA.35E69660 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi Colleagues,
 
Could anyone advise the name of suppliers of = radiotherapy=20 machine for animals?
 
Thanks in advance.
 
Kim Yeung
------=_NextPart_000_000B_01C197BA.35E69660-- 1, filed,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 13:54:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NZIb-0006zJ-00; Mon, 7 Jan 2002 13:54:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 811DB1112F1; Mon, 7 Jan 2002 13:43:18 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA18891 for linac-eng-list; Mon, 7 Jan 2002 06:30:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsp074.netvigator.com (imsp074.netvigator.com [218.102.23.129]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA18887 for ; Mon, 7 Jan 2002 06:30:44 -0600 (CST) Received: from yeung (pcd438092.netvigator.com [203.218.228.92]) by imsp074.netvigator.com (8.9.3+Sun/8.9.1) with SMTP id UAA02246 for ; Mon, 7 Jan 2002 20:30:20 +0800 (HKT) Message-ID: <000e01c19777$28499d60$57dffea9@yeung> From: "k yeung" To: Subject: Re: Radiotherapy machine for animals Date: Mon, 7 Jan 2002 20:30:56 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C197BA.35E69660" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Radiotherapy machine for animals Date: Mon, 7 Jan 2002 20:30:56 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C197BA.35E69660" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C197BA.35E69660 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Could anyone advise the name of suppliers of radiotherapy machine for = animals? Thanks in advance. Kim Yeung ------=_NextPart_000_000B_01C197BA.35E69660 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi Colleagues,
 
Could anyone advise the name of suppliers of = radiotherapy=20 machine for animals?
 
Thanks in advance.
 
Kim Yeung
------=_NextPart_000_000B_01C197BA.35E69660-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 15:46:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Nb37-00085S-00; Mon, 7 Jan 2002 15:46:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id AFDE61112F7; Mon, 7 Jan 2002 15:35:24 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA20584 for linac-eng-list; Mon, 7 Jan 2002 08:30:39 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d09.mx.aol.com (imo-d09.mx.aol.com [205.188.157.41]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA20580 for ; Mon, 7 Jan 2002 08:30:38 -0600 (CST) From: Dsteimel2@aol.com Received: from Dsteimel2@aol.com by imo-d09.mx.aol.com (mail_out_v31_r1.9.) id c.24.1eeb8781 (2170) for ; Mon, 7 Jan 2002 09:30:03 -0500 (EST) Message-ID: <24.1eeb8781.296b0aea@aol.com> Date: Mon, 7 Jan 2002 09:30:02 EST Subject: Re: CL-1800 smell To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_24.1eeb8781.296b0aea_boundary" X-Mailer: AOL 6.0 for Windows US sub 10552 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Dsteimel2@aol.com Date: Mon, 7 Jan 2002 09:30:02 EST Subject: Re: CL-1800 smell To: linac-eng@plato1.aristotle.net Content-Type: multipart/alternative; boundary="part1_24.1eeb8781.296b0aea_boundary" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --part1_24.1eeb8781.296b0aea_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I know you have received plenty of responses on this, but I just had the same call last week on one of my conventional Mevatrons. There is a floor drain in the table pit at that site (although it is more often under the structure). Over time the water in the trap evaporates and sewer gasses escape. Adding water to fill the trap solved the problem. I will probably add some type of vegetable oil next PM so evaporation will not occur as soon. Dave MIRO Farmington Hills, MI --part1_24.1eeb8781.296b0aea_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit I know you have received plenty of responses on this, but I just had the same call last week on one of my conventional Mevatrons.  
There is a floor drain in the table pit at that site (although it is more often under the structure). Over time the water in the trap evaporates and sewer gasses escape. Adding water to fill the trap solved the problem. I will probably add some type of vegetable oil next PM so evaporation will not occur as soon.
Dave
MIRO
Farmington Hills, MI
--part1_24.1eeb8781.296b0aea_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 17:03:14 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NcF0-0000D9-00; Mon, 7 Jan 2002 17:03:14 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2B2F11112F1; Mon, 7 Jan 2002 16:51:45 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA21723 for linac-eng-list; Mon, 7 Jan 2002 09:48:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.virginia.edu (mail.Virginia.EDU [128.143.2.9]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id JAA21719 for ; Mon, 7 Jan 2002 09:48:27 -0600 (CST) Received: from holmes.acc.virginia.edu by mail.virginia.edu id ab08986; 7 Jan 2002 10:48 EST Received: from rtheidimr.virginia.edu (rtheidimr.med.Virginia.EDU [128.143.152.152]) by holmes.acc.Virginia.EDU (8.11.6/8.11.6) with ESMTP id g07FmNe168682 for ; Mon, 7 Jan 2002 10:48:23 -0500 Message-Id: <5.1.0.14.2.20020107103806.00a56ac0@holmes.acc.virginia.edu> X-Sender: aa2h@holmes.acc.virginia.edu X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 07 Jan 2002 10:54:42 -0500 To: linac-eng@plato1.aristotle.net From: Al Aqualino Subject: Effect of I_gun on E in SL-18? Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: aa2h@holmes.acc.virginia.edu Date: Mon, 07 Jan 2002 10:54:42 -0500 To: linac-eng@plato1.aristotle.net From: Al Aqualino Subject: Effect of I_gun on E in SL-18? Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk On my Elekta SL18, the 15x dose rate was running much higher than nominal (580 vs. nominal 400 mu/min). I care about this because of a special procedure we do at 100 nominal, which is tough at 580/4=145 instead of close to 100. I therefore asked our service rep to decrease the dose rate slightly, which he did by increasing the gun current a bit. This affected dose per mu, so I recalibrated the 15x output. Indeed, I expected gun current to affect dose cal, since I view I_gun as affecting the number of electrons the gun boils off into the accelerating structure. However, I *don't* expect it to influence the energy spectrum. Yet a Varian engineer showed me a load chart of various magnetron current curves for a Varian 6/100 (plotted versus gun current and energy) which indicates that if gun current is increased without changing mag current on the Varian, the Energy will decrease. Why? Seems to me like the energy should depend on the energy with which the electrons are injected into the accelerating structure and what happens in the accelerating structure; neither of which I expected to be influenced by I_gun. What gives? Is this just some difference in definitions of I_gun between Varian and Elekta, or is there an understandable physical reason why I_gun should affect beam energy? 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 17:08:48 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NcKO-0000FR-00; Mon, 7 Jan 2002 17:08:48 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C06661112F1; Mon, 7 Jan 2002 16:57:19 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA21802 for linac-eng-list; Mon, 7 Jan 2002 09:53:58 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f32.law4.hotmail.com [216.33.149.32]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA21798 for ; Mon, 7 Jan 2002 09:53:57 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 7 Jan 2002 07:53:26 -0800 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Mon, 07 Jan 2002 15:53:26 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato1.aristotle.net Subject: GP 310 printer for sale Date: Mon, 07 Jan 2002 15:53:26 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 07 Jan 2002 15:53:26.0417 (UTC) FILETIME=[718D8010:01C19793] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato1.aristotle.net Subject: GP 310 printer for sale Date: Mon, 07 Jan 2002 15:53:26 +0000 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 07 Jan 2002 15:53:26.0417 (UTC) FILETIME=[718D8010:01C19793] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We have severalwrking and not so working GP310 printers for and elekta/phillips accelerators,, and the had to find out ragouisly priced ribbons I think. Any takers, one price takes all, bids please,, so step on up and get one while they last ;) David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" linac-eng@plato1.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 17:27:08 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Ncc8-0000Q4-00; Mon, 7 Jan 2002 17:27:08 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id AA1A01112F1; Mon, 7 Jan 2002 17:15:38 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id KAA22335 for linac-eng-list; Mon, 7 Jan 2002 10:12:31 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NAVGATE.mcg.edu (navgate.mcg.edu [158.93.7.45]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id KAA22331 for ; Mon, 7 Jan 2002 10:12:30 -0600 (CST) Received: from mail.mcg.edu ([158.93.1.5]) by NAVGATE.mcg.edu (NAVGW 2.5.1.6) with SMTP id M2002010711094122732 for ; Mon, 07 Jan 2002 11:09:41 -0500 Received: from THEHUB-Message_Server by mail.mcg.edu with Novell_GroupWise; Mon, 07 Jan 2002 11:12:27 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Mon, 07 Jan 2002 11:12:18 -0500 From: "Michael Nordin" To: Subject: opto-coupler 4n46 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA22332 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 07 Jan 2002 11:12:18 -0500 From: "Michael Nordin" To: Subject: opto-coupler 4n46 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA22332 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I'm trying to second source opto-coupler 4n46. Any help please. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 19:43:52 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NekS-0000d3-00; Mon, 7 Jan 2002 19:43:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id AD3D71112F3; Mon, 7 Jan 2002 19:32:21 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id MAA25726 for linac-eng-list; Mon, 7 Jan 2002 12:27:48 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA25722 for ; Mon, 7 Jan 2002 12:27:47 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA17146; Mon, 7 Jan 2002 12:24:06 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B3A.00651093 ; Mon, 7 Jan 2002 12:23:53 -0600 X-Lotus-FromDomain: MDACC To: Al Aqualino Cc: linac-eng@plato1.aristotle.net Message-ID: <86256B3A.00650F37.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 7 Jan 2002 12:23:02 -0600 Subject: Re: Effect of I_gun on E in SL-18? Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Al Aqualino Cc: linac-eng@plato1.aristotle.net Date: Mon, 7 Jan 2002 12:23:02 -0600 Subject: Re: Effect of I_gun on E in SL-18? Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The Varian 6/100 has no bending magnet, therefore the photon spectrum is entirely a function of the electron beam spectrum within the accelerator. On machines with bending magnets, only a narrow range of the electron spectrum makes it to the target and filter, and so when gun current or RF power change enough to significantly affect the electron beam spectrum, output disappears. You will see a slight energy shift as you "load" the accelerating potential, but only within the energy window defined by the magnet system. Tim Waldron Al Aqualino on 01/07/2002 09:54:42 AM To: linac-eng@plato1.aristotle.net cc: (bcc: Timothy J. Waldron/MDACC) Subject: Effect of I_gun on E in SL-18? On my Elekta SL18, the 15x dose rate was running much higher than nominal (580 vs. nominal 400 mu/min). I care about this because of a special procedure we do at 100 nominal, which is tough at 580/4=145 instead of close to 100. I therefore asked our service rep to decrease the dose rate slightly, which he did by increasing the gun current a bit. This affected dose per mu, so I recalibrated the 15x output. Indeed, I expected gun current to affect dose cal, since I view I_gun as affecting the number of electrons the gun boils off into the accelerating structure. However, I *don't* expect it to influence the energy spectrum. Yet a Varian engineer showed me a load chart of various magnetron current curves for a Varian 6/100 (plotted versus gun current and energy) which indicates that if gun current is increased without changing mag current on the Varian, the Energy will decrease. Why? Seems to me like the energy should depend on the energy with which the electrons are injected into the accelerating structure and what happens in the accelerating structure; neither of which I expected to be influenced by I_gun. What gives? Is this just some difference in definitions of I_gun between Varian and Elekta, or is there an understandable physical reason why I_gun should affect beam energy? 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 20:00:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Nf0b-0000eS-00; Mon, 7 Jan 2002 20:00:34 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8DE081112F1; Mon, 7 Jan 2002 19:49:02 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA25926 for linac-eng-list; Mon, 7 Jan 2002 12:43:10 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbhc.ns.ca (mail.cbhc.ns.ca [142.176.129.243]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA25922 for ; Mon, 7 Jan 2002 12:43:08 -0600 (CST) Received: by mail.cbhc.ns.ca from localhost (router,SLMail V3.2); Mon, 07 Jan 2002 14:43:54 -0400 Received: from jyorke [128.222.7.122] by mail.cbhc.ns.ca [0] (SLmail 3.2.3113) with SMTP id F97CBCB7FFA111D59CC50002B38BBB5B for plus 1 more; Mon, 07 Jan 2002 14:43:53 -0400 From: "Greg CBHC" To: "Michael Nordin" Cc: "LinacEng" Subject: RE: opto-coupler 4n46 Date: Mon, 7 Jan 2002 14:43:33 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-SLUIDL: 3FE25AE7-FFA111D5-9CC50002-B38BBB5B Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Greg CBHC" To: "Michael Nordin" Cc: "LinacEng" Subject: RE: opto-coupler 4n46 Date: Mon, 7 Jan 2002 14:43:33 -0400 Content-Type: text/plain; charset="US-ASCII" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-SLUIDL: 3FE25AE7-FFA111D5-9CC50002-B38BBB5B Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Michael Try Sam Rosenstein at Summit Electronics Corp. 6540 East Rogers Circle, Boca Raton Florida 33487, Fax 800-226-8523, Tel 800-226-6960 or web www.summitelectronics.com __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8000 x2163 fax: (902)567-8075 email: mackinnongreg@cbhc.ns.ca -----Original Message----- From: owner-linac-eng@plato1.aristotle.net [mailto:owner-linac-eng@plato1.aristotle.net]On Behalf Of Michael Nordin Sent: Monday, January 07, 2002 12:12 PM To: linac-eng@plato1.aristotle.net Subject: opto-coupler 4n46 I'm trying to second source opto-coupler 4n46. Any help please. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 20:25:19 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NfOZ-0000g9-00; Mon, 7 Jan 2002 20:25:19 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 543791112F1; Mon, 7 Jan 2002 20:13:48 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id NAA26604 for linac-eng-list; Mon, 7 Jan 2002 13:09:53 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA26600 for ; Mon, 7 Jan 2002 13:09:50 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA05353 for ; Tue, 8 Jan 2002 08:05:33 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Tue, 8 Jan 2002 08:09:18 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 08 Jan 2002 08:09:03 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 08 Jan 2002 08:08:56 +1300 From: "Dave Pinchin" To: , Subject: Re: Effect of I_gun on E in SL-18? Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA26601 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 08 Jan 2002 08:08:56 +1300 From: "Dave Pinchin" To: , Subject: Re: Effect of I_gun on E in SL-18? Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA26601 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day, There is an interesting interaction here. If you can imagine a machine to launch ping-pong balls. It consists of a vaccuum cleaner blowing and a piece of pipe. If you drop a ball in it flies out the end and travels 5 metres. If you drop 100 balls in they dribble out the end and travel 0.5m. This loading effect occurs exactly the same in the accelerating structures of our beasties. Of course a tweek of 1% electron current will hardly show up in the energy spectrum but your tweek of close to 50% should. I am familiar with Varians machines but not other manufacturers. In the high energy machines there is an energy specrum filter in the bending magnet. But not so in the low energy machine. It then behoves us to ensure that any tweeking or tuning does not change the beam _energy_ as well as the _dose_per_MU_. That's why we keep a tame physicist near by. Hope this helps. Dave. >>> Al Aqualino 8/01/02 04:54:42 >>> On my Elekta SL18, the 15x dose rate was running much higher than nominal (580 vs. nominal 400 mu/min). I care about this because of a special procedure we do at 100 nominal, which is tough at 580/4=145 instead of close to 100. I therefore asked our service rep to decrease the dose rate slightly, which he did by increasing the gun current a bit. This affected dose per mu, so I recalibrated the 15x output. Indeed, I expected gun current to affect dose cal, since I view I_gun as affecting the number of electrons the gun boils off into the accelerating structure. However, I *don't* expect it to influence the energy spectrum. Yet a Varian engineer showed me a load chart of various magnetron current curves for a Varian 6/100 (plotted versus gun current and energy) which indicates that if gun current is increased without changing mag current on the Varian, the Energy will decrease. Why? Seems to me like the energy should depend on the energy with which the electrons are injected into the accelerating structure and what happens in the accelerating structure; neither of which I expected to be influenced by I_gun. What gives? Is this just some difference in definitions of I_gun between Varian and Elekta, or is there an understandable physical reason why I_gun should affect beam energy? ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 07 23:28:46 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NiG6-0000w8-00; Mon, 7 Jan 2002 23:28:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 71DBA1112F1; Mon, 7 Jan 2002 23:17:12 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA01833 for linac-eng-list; Mon, 7 Jan 2002 16:07:06 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm14.texas.rr.com (sm14.texas.rr.com [24.93.35.41]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA01825 for ; Mon, 7 Jan 2002 16:07:05 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm14.texas.rr.com (8.12.0.Beta16/8.12.0.Beta16) with ESMTP id g07M8Iu4017104 for ; Mon, 7 Jan 2002 16:08:28 -0600 From: "Thomas McCausland" To: Date: Mon, 7 Jan 2002 16:06:42 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Effect of I_gun on E in SL-18? Reply-To: acceltek@acceltekservice.com Message-ID: <3C39C792.14794.6A55C1B@localhost> In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: Date: Mon, 7 Jan 2002 16:06:42 -0600 Content-type: text/plain; charset=US-ASCII Subject: Re: Effect of I_gun on E in SL-18? Reply-To: acceltek@acceltekservice.com In-reply-to: Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Date sent: Tue, 08 Jan 2002 08:08:56 +1300 From: "Dave Pinchin" To: , Subject: Re: Effect of I_gun on E in SL-18? > G'day, > There is an interesting interaction here. > >--------------------- SNIP ------------------------------------ > > It then behoves us to ensure that any tweeking or tuning does not > change the beam _energy_ as well as the _dose_per_MU_. That's why we > keep a tame physicist near by. > > Hope this helps. > Dave. Dave, Questions: Where can I get one of these tame physicists? Will Australia allow export of them? How are they tamed? Actually, most (all at the moment), of the physicists I work with at the moment are tamed. Its only when they are in packs, you have to be careful. What's the technical name for a group of physicists in the wild? Gaggle? Pack? Ahh I have it...' a Bunch' as in relation to a buncher. - get it? Sorry ...I'll go take my meds and rest some. :) Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 00:22:32 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Nj68-0000yv-00; Tue, 8 Jan 2002 00:22:32 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C077C1112F1; Tue, 8 Jan 2002 00:10:57 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id RAA02983 for linac-eng-list; Mon, 7 Jan 2002 17:03:21 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA02978 for ; Mon, 7 Jan 2002 17:03:15 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id LAA19149 for ; Tue, 8 Jan 2002 11:58:49 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Tue, 8 Jan 2002 12:02:35 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 08 Jan 2002 12:02:19 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 08 Jan 2002 12:02:09 +1300 From: "Dave Pinchin" To: , Subject: Re: Effect of I_gun on E in SL-18? Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA02980 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 08 Jan 2002 12:02:09 +1300 From: "Dave Pinchin" To: , Subject: Re: Effect of I_gun on E in SL-18? Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA02980 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk >>> "Thomas McCausland" 8/01/02 > >--------------------- SNIP ------------------------------ >Questions: > >What's the technical name for a group of physicists in the wild? >Gaggle? Actually a squadron of these birds are called a _gabble_. Sorry ...I'll Get a stronger dose of my meds. :) :D ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 01:11:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Njra-00011I-00; Tue, 8 Jan 2002 01:11:34 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5B2511112F1; Tue, 8 Jan 2002 00:59:59 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id RAA04282 for linac-eng-list; Mon, 7 Jan 2002 17:55:31 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.accuray.com (exchange.accuray.com [38.169.25.170]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA04278 for ; Mon, 7 Jan 2002 17:55:29 -0600 (CST) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Effect of I_gun on E in SL-18? X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Mon, 7 Jan 2002 15:55:25 -0800 Message-ID: <634284F16B42C249B642E5AB43FD720B13C0E0@exchange.accuray.com> Thread-Topic: Effect of I_gun on E in SL-18? Thread-Index: AcGXnFqBfoDw2No2Qf6hnh/niVXJ+gANVQWQ From: "John Somers" To: "Al Aqualino" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA04279 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Effect of I_gun on E in SL-18? X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Mon, 7 Jan 2002 15:55:25 -0800 Thread-Topic: Effect of I_gun on E in SL-18? Thread-Index: AcGXnFqBfoDw2No2Qf6hnh/niVXJ+gANVQWQ From: "John Somers" To: "Al Aqualino" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA04279 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Al, you are correct that the Gun I parameter on Elekta machines is indirectly a measure of electron current injected into the accelerator guide. Indirect because on the Elekta gun, it is actually the gun filament current, so directly affects filament heating, which then determines the quantity of electrons emitted. For the Elekta gun, the filament itself is the source of electrons. The change in beam energy with changes in electron current levels occurs in photon mode, but not in electron mode. This is due to the high beam currents required to produce a therapy photon beam through the very inefficient energy conversion process within the target, referred to as the bremmstrahlung process. Within the accelerator guide, the electron density of these high beam current levels is sufficient to alter the efficiency of beam capture, electric field configuration, and power losses. All of these effects are lumped into the term "beam loading". And one of the resulting effects is indeed a change in the energy spectrum of the e-beam, and hence of the photon beam. (Remember, the 6/100 is a fixed target, photons only machine.) Electron mode beams do not have the inefficient energy conversion process in the target, so the e-beams themselves are much lower current levels, typically by a factor of 1000 or more. Being so low in electron quantity and density, the electron-mode beams do not load, or significantly affect the fields and efficiency of, the guide. All of this sorta like Dave Pinchin described as analogous to the ping pong balls being propelled by a vacuum cleaner airstream, only a bit more complex. As Dave, Tim and others have pointed out, the bending magnet serves to a certain extent as an energy bandpass filter. However the Elekta slalom bend magnet does differ, in beam optics sense, from the Varian and Siemens 270 degree bend magnets. (In fact there is some difference between the Varian and Siemens magnets too.) But in either case, this energy windowing effect of the bend magnet is not sufficient to ensure the beam energy is forever constant with a given Gun I, bend magnet I, and RF power level combination. So voila, we have the energy servos. Elekta servos the gun, utilizing the beam loading effect. Then just to make sure, in the case of the Elekta machines, the Hump Error is used as an indicator of energy changes, which can happen without taking the energy spectrum beyond the energy window of the bend magnet. In the Varian and Siemens machines, it's the PFN servos which are used to maintain stable energy. Regards to all, John Somers -----Original Message----- From: Al Aqualino [mailto:aa2h@virginia.edu] Sent: Monday, January 07, 2002 7:55 AM To: linac-eng@plato1.aristotle.net Subject: Effect of I_gun on E in SL-18? On my Elekta SL18, the 15x dose rate was running much higher than nominal (580 vs. nominal 400 mu/min). I care about this because of a special procedure we do at 100 nominal, which is tough at 580/4=145 instead of close to 100. I therefore asked our service rep to decrease the dose rate slightly, which he did by increasing the gun current a bit. This affected dose per mu, so I recalibrated the 15x output. Indeed, I expected gun current to affect dose cal, since I view I_gun as affecting the number of electrons the gun boils off into the accelerating structure. However, I *don't* expect it to influence the energy spectrum. Yet a Varian engineer showed me a load chart of various magnetron current curves for a Varian 6/100 (plotted versus gun current and energy) which indicates that if gun current is increased without changing mag current on the Varian, the Energy will decrease. Why? Seems to me like the energy should depend on the energy with which the electrons are injected into the accelerating structure and what happens in the accelerating structure; neither of which I expected to be influenced by I_gun. What gives? Is this just some difference in definitions of I_gun between Varian and Elekta, or is there an understandable physical reason why I_gun should affect beam energy? 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 02:06:40 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Nkiu-00013W-00; Tue, 8 Jan 2002 02:06:40 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C55A31112F1; Tue, 8 Jan 2002 01:55:04 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id SAA04411 for linac-eng-list; Mon, 7 Jan 2002 18:04:57 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.mx.voyager.net (mail1.mx.voyager.net [216.93.66.200]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA04407 for ; Mon, 7 Jan 2002 18:04:56 -0600 (CST) Received: from thunderbird (d29.as0.stjh.mi.voyager.net [209.153.161.30]) by mail1.mx.voyager.net (8.11.6/8.10.2) with SMTP id g0804jq49813; Mon, 7 Jan 2002 19:04:46 -0500 (EST) Message-ID: <000f01c197d8$481a5560$1ea199d1@thunderbird> From: "Jeff Cressman" To: , References: <24.1eeb8781.296b0aea@aol.com> Subject: Re: CL-1800 smell Date: Mon, 7 Jan 2002 19:06:08 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01C197AE.5D55EAE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Jeff Cressman" To: , Subject: Re: CL-1800 smell Date: Mon, 7 Jan 2002 19:06:08 -0500 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01C197AE.5D55EAE0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_000C_01C197AE.5D55EAE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dave; I too have had a similar problem. Recommend you use mineral oil instead = of vegetable oil. Thanks, Jeff Cressman Sparrow Regional Cancer Center Lansing, Michigan ----- Original Message -----=20 From: Dsteimel2@aol.com=20 To: linac-eng@plato1.aristotle.net=20 Sent: Monday, January 07, 2002 9:30 AM Subject: Re: CL-1800 smell I know you have received plenty of responses on this, but I just had = the same call last week on one of my conventional Mevatrons. =20 There is a floor drain in the table pit at that site (although it is = more often under the structure). Over time the water in the trap = evaporates and sewer gasses escape. Adding water to fill the trap solved = the problem. I will probably add some type of vegetable oil next PM so = evaporation will not occur as soon.=20 Dave=20 MIRO=20 Farmington Hills, MI=20 ------=_NextPart_000_000C_01C197AE.5D55EAE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dave;
 
I too have had a similar problem.  = Recommend=20 you use mineral oil instead of vegetable oil.
 
Thanks,
 
Jeff Cressman
Sparrow Regional Cancer = Center
Lansing, Michigan
----- Original Message -----
From:=20 Dsteimel2@aol.com
To: linac-eng@plato1.aristotle= .net=20
Sent: Monday, January 07, 2002 = 9:30=20 AM
Subject: Re: CL-1800 = smell

I know you = have=20 received plenty of responses on this, but I just had the same call = last week=20 on one of my conventional Mevatrons.  
There is a floor drain = in the=20 table pit at that site (although it is more often under the = structure). Over=20 time the water in the trap evaporates and sewer gasses escape. Adding = water to=20 fill the trap solved the problem. I will probably add some type of = vegetable=20 oil next PM so evaporation will not occur as soon.
Dave
MIRO=20
Farmington Hills, MI
------=_NextPart_000_000C_01C197AE.5D55EAE0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 09:19:58 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NrUE-00029x-00; Tue, 8 Jan 2002 09:19:58 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7E0E21112F3; Tue, 8 Jan 2002 09:08:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id CAA09164 for linac-eng-list; Tue, 8 Jan 2002 02:03:40 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA09160 for ; Tue, 8 Jan 2002 02:03:39 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id ADA021112F1 for ; Tue, 8 Jan 2002 08:51:44 +0100 (MET) Received: from winnt_47.radcl.ruu.nl (kanon.localdomain.fake) [131.211.145.47] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NrEB-00024j-00; Tue, 8 Jan 2002 09:03:23 +0100 Received: from kok by kanon.localdomain.fake with local (Exim 3.16 #1 (Debian)) id 16Ns0V-0002Dh-00; Tue, 08 Jan 2002 09:53:19 +0100 To: linac-eng@plato1.aristotle.net Subject: Effect of I_gun on E in SL-18? From: Jan Kok Message-Id: Date: Tue, 08 Jan 2002 09:53:19 +0100 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: linac-eng@plato1.aristotle.net Subject: Effect of I_gun on E in SL-18? From: Jan Kok Date: Tue, 08 Jan 2002 09:53:19 +0100 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Greetings in this New Year, I can highly recommend the following book: LINEAR ACCELERATORS FOR RADIATION THERAPY second edition D Greene and PC Williams ISBN 0-7503-0476-6 Linear accelerators for radiation therapy is a comprehensive introduction to the principles behind the technology and operation of linear accelerators used for radiation therapy. The authors begin with a brief overview of the major components, followed by detailed description of the physics underlying the technology. In subsequent chapters they set out electron acceleration processes, generation and control of microwave power sources, and production and transport of electron beams to the treatment head. regards, Jan Kok linac engineer University medical center Utrecht the Netherlands 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 11:39:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Ntfe-0003Xc-00; Tue, 8 Jan 2002 11:39:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id EF5011112F1; Tue, 8 Jan 2002 11:28:11 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id EAA11065 for linac-eng-list; Tue, 8 Jan 2002 04:23:00 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nt-tudor00.cancercare.co.za ([196.3.241.211]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id EAA11061 for ; Tue, 8 Jan 2002 04:22:55 -0600 (CST) Received: by NT-TUDOR00 with Internet Mail Service (5.5.2650.21) id ; Tue, 8 Jan 2002 12:17:27 +0200 Message-ID: From: Will Pazda To: "'linac-eng@plato1.aristotle.net'" Subject: Looking for lecture material Date: Tue, 8 Jan 2002 12:31:20 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Will Pazda To: "'linac-eng@plato1.aristotle.net'" Subject: Looking for lecture material Date: Tue, 8 Jan 2002 12:31:20 +0200 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Dear All, Our organization has decided to hold an academic weekend for all staff (about 150 people) and each section / department is required to give a lecture on a subject of their choice (or not of their choice as the case may be !). Our service department have been asked to put together a half hour presentation on 'the workings of a linac'. Although it would be very easy to stand and talk about this stuff for half an hour a lot of people would be bored silly so I'm trying to put together some kind of visual presentation, maybe with a bit of humour in it, to make things more interesting for the non-technical staff. If anybody has done something similar or has any visual material (e.g. powerpoint slides, scanned diagrams etc.) in electronic format and would be willing to share, I would be very grateful to hear from them. Thanks & regards to all, Will Pazda Cape Town, South Africa. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 11:42:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NtiA-0003YZ-00; Tue, 8 Jan 2002 11:42:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 79B9B1112F1; Tue, 8 Jan 2002 11:30:47 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id EAA11079 for linac-eng-list; Tue, 8 Jan 2002 04:27:28 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA11075 for ; Tue, 8 Jan 2002 04:27:27 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16NtT6-000564-00; Tue, 08 Jan 2002 10:26:56 +0000 Received: from relay.nhs.uk (194.62.42.142) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C39E14F00014639 for linac-eng@plato1.aristotle.net; Tue, 8 Jan 2002 10:26:56 +0000 Received: from email.rbbh_msdomain1 (195.104.159.2) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C39E292000142AF for linac-eng@plato1.aristotle.net; Tue, 8 Jan 2002 10:26:56 +0000 Received: by EMAIL with Internet Mail Service (5.5.2653.19) id ; Tue, 8 Jan 2002 10:26:55 -0000 Message-ID: From: Paul Whittard To: linac-eng@plato1.aristotle.net Subject: RE: Gabble of physicists Date: Tue, 8 Jan 2002 10:27:23 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Paul Whittard To: linac-eng@plato1.aristotle.net Subject: RE: Gabble of physicists Date: Tue, 8 Jan 2002 10:27:23 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk So, New Zealand can find that great rarity, groups (squadron/gabble/gaggle) of physicists. This must reveal the answer to the UK's shortage of scientific staff: they are migratory creatures that fly south in the winter, probably never to return. > -----Original Message----- > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > Sent: 07 January 2002 23:02 > To: acceltek@acceltekservice.com; linac-eng@plato1.aristotle.net > Subject: Re: Effect of I_gun on E in SL-18? > > > > >>> "Thomas McCausland" 8/01/02 > > > >--------------------- SNIP ------------------------------ > >Questions: > > > >What's the technical name for a group of physicists in the wild? > >Gaggle? > > Actually a squadron of these birds are called a _gabble_. > > Sorry ...I'll Get a stronger dose of my meds. :) > > :D > > > > > > ** This email and attachments have been scanned for content and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 13:03:12 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16NuyG-0004Fe-00; Tue, 8 Jan 2002 13:03:12 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 91BD41112F1; Tue, 8 Jan 2002 12:51:28 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id FAA12198 for linac-eng-list; Tue, 8 Jan 2002 05:45:50 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA12194 for ; Tue, 8 Jan 2002 05:45:49 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16Nugw-0000X0-00; Tue, 08 Jan 2002 11:45:18 +0000 Received: from relay.nhs.uk (194.62.42.142) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C39E14F0001F135 for linac-eng@plato1.aristotle.net; Tue, 8 Jan 2002 11:45:18 +0000 Received: from exchange2.hillsrd (193.130.72.200) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C39E2920001C1D8 for linac-eng@plato1.aristotle.net; Tue, 8 Jan 2002 11:45:18 +0000 Received: by mail.addenbrookes.anglox.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Tue, 8 Jan 2002 11:45:32 -0000 Message-ID: <07EBC420AD13D5118C6A0002A52865C23B146B@mail.addenbrookes.anglox.nhs.uk> From: "Twyman, Paul" To: "'LINAC-ENG'" Subject: Varian EXT couch keypad controller Date: Tue, 8 Jan 2002 11:45:32 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Twyman, Paul" To: "'LINAC-ENG'" Subject: Varian EXT couch keypad controller Date: Tue, 8 Jan 2002 11:45:32 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Happy new year to all. I have an annoying little problem on a Varian EXT couch. The couch is approx. 3 years old and has the thumbwheel controls rather than the older pressure sensitive controls. One of they keypad controllers (side panel) refuses to play nice. It will put itself into 'panel off' mode. When I run the diagnostics it will happily pass them and show no sign of any problems but within 10 minutes it will have gone back to 'panel off'. I have performed all of the function tests and once again it is as happy as Larry for 10 minutes or so. (who is Larry?) I have had the whole panel apart and cleaned the board and the membrane assy. etc in case it was a dirty pad but this has not resolved the problem. I am faced with replacing the whole panel, at a price, unless I can track down the problem. Any hints or advice would be gratefully accepted. Thanks in anticipation Paul T Medical Physics dept Box 152 Addenbrookes hospital Cambridge CB2 2QQ United Kingdom tel 01223 586782 fax 01223 257137 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 14:08:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Nvyz-0004qT-00; Tue, 8 Jan 2002 14:08:02 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 77C361112F3; Tue, 8 Jan 2002 13:56:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA12979 for linac-eng-list; Tue, 8 Jan 2002 06:49:24 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from coventry.ac.uk (SMTP1.Services.coventry.ac.uk [193.61.107.150]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA12975 for ; Tue, 8 Jan 2002 06:49:23 -0600 (CST) Received: from OliverHaas (n434-2.mis.coventry.ac.uk [194.66.45.123]) by coventry.ac.uk (8.9.3/8.9.3) with SMTP id MAA11880; Tue, 8 Jan 2002 12:48:30 GMT Message-ID: <003801c19842$c64d6930$7b2d42c2@OliverHaas> From: "Olivier Haas" To: "Will Pazda" , References: Subject: Re: Looking for lecture material Date: Tue, 8 Jan 2002 12:48:29 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 X-ECS-MailScanner: Found to be clean Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Olivier Haas" To: "Will Pazda" , Subject: Re: Looking for lecture material Date: Tue, 8 Jan 2002 12:48:29 -0000 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 X-ECS-MailScanner: Found to be clean Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I would also be glad to see any lecture material, but I can also extend the invitation to participate to a workshop (date yet to be cast in stone but between April and June, travel expenses paid within Europe, if you have some expertise in linac control systems and have played a bit with MLC motors. Olivier Haas, PhD Co-ordinator Biomedical Engineering Systems Group Control Theory and Applications Centre Coventry University, Coventry CV1 5FB (NEW NUMBER!!)Tel +44 (0)2476887658 Fax +44(0)2476888052 http://www.ctac.mis.coventry.ac.uk/ > Dear All, > > Our organization has decided to hold an academic weekend for all staff > (about 150 people) and each section / department is required to give a > lecture on a subject of their choice (or not of their choice as the case may > be !). Our service department have been asked to put together a half hour > presentation on 'the workings of a linac'. Although it would be very easy to > stand and talk about this stuff for half an hour a lot of people would be > bored silly so I'm trying to put together some kind of visual presentation, > maybe with a bit of humour in it, to make things more interesting for the > non-technical staff. > > If anybody has done something similar or has any visual material (e.g. > powerpoint slides, scanned diagrams etc.) in electronic format and would be > willing to share, I would be very grateful to hear from them. > > Thanks & regards to all, > > Will Pazda > Cape Town, South Africa. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 15:13:47 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Nx0d-0005Y9-00; Tue, 8 Jan 2002 15:13:47 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 253861112F1; Tue, 8 Jan 2002 15:02:02 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA13848 for linac-eng-list; Tue, 8 Jan 2002 07:56:17 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq04.netvigator.com (imsmq04.netvigator.com [208.167.231.40]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id HAA13844 for ; Tue, 8 Jan 2002 07:56:15 -0600 (CST) Received: (qmail 20007 invoked from network); 8 Jan 2002 13:56:11 -0000 Received: from pcd421115.netvigator.com (HELO yeung) (203.218.211.115) by imsmq04.netvigator.com with SMTP; 8 Jan 2002 13:56:11 -0000 Message-ID: <001201c1984c$433b9800$0f6ffea9@yeung> From: "k yeung" To: Subject: Re: Ximatron V6 Date: Tue, 8 Jan 2002 21:56:25 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01C1988F.5135A520" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Ximatron V6 Date: Tue, 8 Jan 2002 21:56:25 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01C1988F.5135A520" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_000F_01C1988F.5135A520 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Could anyone advise the meaning and function of EFD ?=20 The Ximatron has a "shape download" function and it works only if the = Ximatron has installed the EFD option. Thanks in advance. Kim Yeung ------=_NextPart_000_000F_01C1988F.5135A520 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi Colleagues,
 
Could anyone advise the meaning and function of EFD = ?=20
 
The Ximatron has a "shape download" function and = it =20 works only  if the Ximatron has installed the EFD = option.
 
Thanks in advance.
 
Kim Yeung
------=_NextPart_000_000F_01C1988F.5135A520-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 08 20:43:46 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16O29y-000771-00; Tue, 8 Jan 2002 20:43:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7A07D1112F3; Tue, 8 Jan 2002 20:31:56 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA19620 for linac-eng-list; Tue, 8 Jan 2002 13:20:38 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA19615 for ; Tue, 8 Jan 2002 13:20:35 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA02261 for ; Wed, 9 Jan 2002 08:16:11 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Wed, 9 Jan 2002 08:20:01 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 09 Jan 2002 08:19:47 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 09 Jan 2002 08:19:42 +1300 From: "Dave Pinchin" To: , Subject: Re: Varian EXT couch keypad controller Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA19617 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 09 Jan 2002 08:19:42 +1300 From: "Dave Pinchin" To: , Subject: Re: Varian EXT couch keypad controller Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA19617 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day Paul, I had a similar problem. When the machine goes int the ready state the power vanishes on the side panels, pendants, pizza etc. When the beam is done the power is restored. The units do their respective self tests and Larry goes away to tea. The first hint is to check the self test LEDs before you touch anything. I suspect the TW one will be lit. Our problem was a thumbwheel was not centring reliably. I found by SLOWly allowing one thumbwheel into it's 'rest' position (careful not to push it into it's rest position) & then executing the selftest, I could regularly get the error up. By flicking the TW fast it would mostly be fine. To isolate which TW, do TW = 1 to 4 do ten times Up fast SLOWly to rest execute selftest end do end do do TW = 1 to 4 do ten times down fast SLOWly to rest execute selftest end do end do Sorry, couldn't resist that. I've just been put on a caffein drip. Ahhh, lovely. :D >>> "Twyman, Paul" 9/01/02 00:45:32 >>> Happy new year to all. I have an annoying little problem on a Varian EXT couch. The couch is approx. 3 years old and has the thumbwheel controls rather than the older pressure sensitive controls. One of they keypad controllers (side panel) refuses to play nice. It will put itself into 'panel off' mode. When I run the diagnostics it will happily pass them and show no sign of any problems but within 10 minutes it will have gone back to 'panel off'. I have performed all of the function tests and once again it is as happy as Larry for 10 minutes or so. (who is Larry?) I have had the whole panel apart and cleaned the board and the membrane assy. etc in case it was a dirty pad but this has not resolved the problem. I am faced with replacing the whole panel, at a price, unless I can track down the problem. Any hints or advice would be gratefully accepted. Thanks in anticipation Paul T Medical Physics dept Box 152 Addenbrookes hospital Cambridge CB2 2QQ United Kingdom tel 01223 586782 fax 01223 257137 ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-medical-physics-engineering@JISCMAIL.AC.UK Tue Jan 08 23:54:33 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16O58b-0007Is-00; Tue, 8 Jan 2002 23:54:33 +0100 Received: from jiscmail.ac.uk (jiscmail.ac.uk [130.246.192.48]) by caviar.isi.uu.nl (Postfix) with ESMTP id A1A3D1112F1 for ; Tue, 8 Jan 2002 23:42:42 +0100 (MET) Received: from jiscmail (jiscmail.ac.uk) by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <5.000B16DD@jiscmail.ac.uk>; Tue, 8 Jan 2002 22:53:55 +0000 Received: from JISCMAIL.AC.UK by JISCMAIL.AC.UK (LISTSERV-TCP/IP release 1.8d) with spool id 8855516 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Tue, 8 Jan 2002 22:53:54 +0000 Received: from ori.rl.ac.uk by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <4.000B16F7@jiscmail.ac.uk>; Tue, 8 Jan 2002 22:53:54 +0000 Received: from finch-post-12.mail.demon.net (finch-post-12.mail.demon.net [194.217.242.41]) by ori.rl.ac.uk (8.11.1/8.11.1) with ESMTP id g08Mrr700784 for ; Tue, 8 Jan 2002 22:53:53 GMT Received: from walsgrve.demon.co.uk ([194.222.3.110]) by finch-post-12.mail.demon.net with smtp (Exim 2.12 #1) id 16O57t-0000wW-0C for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Tue, 8 Jan 2002 22:53:53 +0000 MIME-Version: 1.0 X-Mailer: Turnpike (32) Version 3.05 <3zl65z$f$74vwXa5nQLh2DtnBU> Message-ID: Date: Tue, 8 Jan 2002 13:11:07 +0000 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: rtp Subject: Re: NE2670 HV Problems To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK In-Reply-To: *** EOOH *** Date: Tue, 8 Jan 2002 13:11:07 +0000 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: rtp Subject: Re: NE2670 HV Problems To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK In-Reply-To: In message , Paul Whittard writes Dear Paul, >Happy New Year Everyone! Happy New Year! Re 2670 > but has anybody had HV problems with this unit ? We have not experienced any HV problems with our units, which have worked well for the last 2-3 years now. John Mills Radiotherapy Physics Manager Coventry Radiotherapy and Oncology Centre Walsgrave Hospital COVENTRY -- rtp 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 00:09:17 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16O5Mr-0007Jz-00; Wed, 9 Jan 2002 00:09:17 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1D4091112F1; Tue, 8 Jan 2002 23:57:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA24966 for linac-eng-list; Tue, 8 Jan 2002 16:45:19 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imf15bis.bellsouth.net (mail315.mail.bellsouth.net [205.152.58.175]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA24962 for ; Tue, 8 Jan 2002 16:45:18 -0600 (CST) Received: from bellsouth.net ([216.77.62.10]) by imf15bis.bellsouth.net (InterMail vM.5.01.04.00 201-253-122-122-20010827) with ESMTP id <20020108224601.HPLL11348.imf15bis.bellsouth.net@bellsouth.net>; Tue, 8 Jan 2002 17:46:01 -0500 Message-ID: <3C3B768B.2E520382@bellsouth.net> Date: Tue, 08 Jan 2002 16:45:31 -0600 From: Gil Head X-Mailer: Mozilla 4.77 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: Paul Whittard Cc: linac-eng@plato1.aristotle.net Subject: Re: Gabble of physicists References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 08 Jan 2002 16:45:31 -0600 From: Gil Head X-Accept-Language: en To: Paul Whittard Cc: linac-eng@plato1.aristotle.net Subject: Re: Gabble of physicists Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I think that correct name for any group of physicist is a quibble. Paul Whittard wrote: > > So, New Zealand can find that great rarity, groups (squadron/gabble/gaggle) > of physicists. This must reveal the answer to the UK's shortage of > scientific staff: they are migratory creatures that fly south in the winter, > probably never to return. > > > -----Original Message----- > > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > > Sent: 07 January 2002 23:02 > > To: acceltek@acceltekservice.com; linac-eng@plato1.aristotle.net > > Subject: Re: Effect of I_gun on E in SL-18? > > > > > > > > >>> "Thomas McCausland" 8/01/02 > > > > > >--------------------- SNIP ------------------------------ > > >Questions: > > > > > >What's the technical name for a group of physicists in the wild? > > >Gaggle? > > > > Actually a squadron of these birds are called a _gabble_. > > > > Sorry ...I'll Get a stronger dose of my meds. :) > > > > :D > > > > > > > > > > > > ** This email and attachments have been scanned for content and viruses > > and is believed to be clean ** > > > > This email or attachments may contain confidential or legally > > privileged information intended for the sole use of the addressee(s). > > Any use, redistribution, disclosure, or reproduction of this message, > > except as intended, is prohibited. If you received this email in error, > > please notify the sender and remove all copies of the message, > > including any attachments. Any views or opinions expressed in this > > email (unless otherwise stated) may not represent those of Canterbury > > District Health Board. -- "Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself." Mark Twain 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 10:59:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OFWL-0000pd-00; Wed, 9 Jan 2002 10:59:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 136AD1112F1; Wed, 9 Jan 2002 10:47:46 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id DAA02029 for linac-eng-list; Wed, 9 Jan 2002 03:43:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA02025 for ; Wed, 9 Jan 2002 03:43:32 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16OFG9-00063S-00; Wed, 09 Jan 2002 09:43:01 +0000 Received: from relay.nhs.uk (194.62.42.142) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C39E14F00055700 for linac-eng@plato1.aristotle.net; Wed, 9 Jan 2002 09:43:01 +0000 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C39E2920005D764 for linac-eng@plato1.aristotle.net; Wed, 9 Jan 2002 09:43:01 +0000 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Wed, 9 Jan 2002 09:43:11 -0000 Message-ID: <37106221CAA3D511AC1800508BD316030871F2@OBERON> From: "Whitlock, Brian" To: "linac eng (E-mail)" Subject: Do you work Saturday?? Date: Wed, 9 Jan 2002 09:43:50 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "linac eng (E-mail)" Subject: Do you work Saturday?? Date: Wed, 9 Jan 2002 09:43:50 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Does anyone out there have to work on a Saturday to cover routine maintenance and or Linac repair. If the answer is yes, how does your hospital pay you. i.e. time and a half days off in lieu etc. I would be grateful for any advice on what has been agreed elsewhere, especially UK hospitals. Please reply direct to me at the address below. Thanks Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 14:41:43 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OIz9-0003KX-00; Wed, 9 Jan 2002 14:41:43 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F27211112F1; Wed, 9 Jan 2002 14:29:40 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA03900 for linac-eng-list; Wed, 9 Jan 2002 07:23:31 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hsc-fax.mcc.virginia.edu (hsc-fax.mcc.Virginia.EDU [128.143.111.238]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA03896 for ; Wed, 9 Jan 2002 07:23:30 -0600 (CST) Received: by hsc-fax.mcc.Virginia.EDU with Internet Mail Service (5.5.2653.19) id ; Wed, 9 Jan 2002 08:23:25 -0500 Message-ID: From: "Orsolini, Joe D" To: "'Whitlock, Brian'" Cc: "Linac-Eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 08:22:13 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Orsolini, Joe D" To: "'Whitlock, Brian'" Cc: "Linac-Eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 08:22:13 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk for the most part Brian, it depends on the patient load, however if we do have to do maintenance or support on a Saturday or Sunday, we are asked to take the time off sometime during the pay period, but that can't always happen. Policy is to try to take the time off if it won't impact your other duties. However, we are paid a shift differential for working a non-normal shift, and thats regardless whether we take the time off during the week, or have to get paid the time and a half. Occasionally we will break up PMI's over two or three evenings so that we don't have to work the weekend, and it doesn't impact the Linac's schedule. Giuseppe 'Joe' Orsolini RT Imaging Physics Specialist University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-963-2220 (pager) -----Original Message----- From: Whitlock, Brian [mailto:BWhitlock@poole-tr.swest.nhs.uk] Sent: Wednesday, January 09, 2002 4:44 AM To: linac eng (E-mail) Subject: Do you work Saturday?? Does anyone out there have to work on a Saturday to cover routine maintenance and or Linac repair. If the answer is yes, how does your hospital pay you. i.e. time and a half days off in lieu etc. I would be grateful for any advice on what has been agreed elsewhere, especially UK hospitals. Please reply direct to me at the address below. Thanks Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 15:37:49 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OJrR-0003oI-00; Wed, 9 Jan 2002 15:37:49 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3E2341112F1; Wed, 9 Jan 2002 15:25:46 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA04884 for linac-eng-list; Wed, 9 Jan 2002 08:21:23 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id IAA04880 for ; Wed, 9 Jan 2002 08:21:21 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA01358; Wed, 9 Jan 2002 08:26:36 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3C3C51EE.6DEC9D80@scf.sk.ca> Date: Wed, 09 Jan 2002 08:21:34 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Whitlock, Brian" , "Linac-Engineers, Listserver" Subject: Re: Do you work Saturday?? References: <37106221CAA3D511AC1800508BD316030871F2@OBERON> Content-Type: multipart/mixed; boundary="------------4E62F093AC21EB306CE5E416" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 09 Jan 2002 08:21:34 -0600 From: Chris Barnardo X-Accept-Language: en To: "Whitlock, Brian" , "Linac-Engineers, Listserver" Subject: Re: Do you work Saturday?? Content-Type: multipart/mixed; boundary="------------4E62F093AC21EB306CE5E416" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------4E62F093AC21EB306CE5E416 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Currently we only work weekends for emergency repair of our machines. We try to cover the routine maint. on our PM days which is Friday. However, if we work weekends the pay rate is double time, or time off. "Whitlock, Brian" wrote: > Does anyone out there have to work on a Saturday to cover routine > maintenance and or Linac repair. > If the answer is yes, how does your hospital pay you. i.e. time and a half > days off in lieu etc. > > I would be grateful for any advice on what has been agreed elsewhere, > especially UK hospitals. > Please reply direct to me at the address below. > > Thanks > > Brian Whitlock > Radiotherapy Physics > Poole Hospital > Longfleet Road > Poole, Dorset. BH15 2JB > > Tel 01202 448175 > email bwhitlock@poole-tr.swest.nhs.uk --------------4E62F093AC21EB306CE5E416 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------4E62F093AC21EB306CE5E416-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 16:50:27 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OKzi-0004Nr-00; Wed, 9 Jan 2002 16:50:26 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B6E81112F1; Wed, 9 Jan 2002 16:38:22 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA06615 for linac-eng-list; Wed, 9 Jan 2002 09:26:09 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from swchsc.on.ca ([142.76.1.62]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA06611 for ; Wed, 9 Jan 2002 09:26:08 -0600 (CST) Received: by swchsc.on.ca; id KAA10200; Wed, 9 Jan 2002 10:25:20 -0500 (EST) Received: from nodnsquery(142.76.240.40) by WebShield.swchsc.on.ca via csmap (V4.1) id srcAAASUa46t; Wed, 9 Jan 02 10:25:20 -0500 Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Wed, 9 Jan 2002 10:25:25 -0500 Message-ID: From: "Rozenblat, Alex" To: "'Whitlock, Brian'" , "linac eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 10:25:15 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'Whitlock, Brian'" , "linac eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 10:25:15 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk In TSRCC, Toronto, Canada we - full-time engineering support group - do not work weekends but we (in rota) have one person who is on-call because of emergency situations, some experiments/QA conducted by our physicists (a flock?)and occasional "siming" of patients. We are paid only a stand-by fee per hour, which is so laughable - it's a shame even to mention. Alex Rozenblat My opinion does not necessarily reflects an opinion of our management. -----Original Message----- From: Whitlock, Brian [mailto:BWhitlock@poole-tr.swest.nhs.uk] Sent: 09 January 2002 04:44 To: linac eng (E-mail) Subject: Do you work Saturday?? Does anyone out there have to work on a Saturday to cover routine maintenance and or Linac repair. If the answer is yes, how does your hospital pay you. i.e. time and a half days off in lieu etc. I would be grateful for any advice on what has been agreed elsewhere, especially UK hospitals. Please reply direct to me at the address below. Thanks Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 17:23:59 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OLWB-0004hc-00; Wed, 9 Jan 2002 17:23:59 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 104A61112F1; Wed, 9 Jan 2002 17:11:55 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id KAA07623 for linac-eng-list; Wed, 9 Jan 2002 10:06:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hsc-fax.mcc.virginia.edu (hsc-fax.mcc.Virginia.EDU [128.143.111.238]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA07615 for ; Wed, 9 Jan 2002 10:06:27 -0600 (CST) Received: by hsc-fax.mcc.Virginia.EDU with Internet Mail Service (5.5.2653.19) id ; Wed, 9 Jan 2002 11:06:22 -0500 Message-ID: From: "Orsolini, Joe D" To: "'Rozenblat, Alex'" Cc: "Linac-Eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 11:06:22 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Orsolini, Joe D" To: "'Rozenblat, Alex'" Cc: "Linac-Eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 11:06:22 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Well, its kinda complex,I only know because my wife works in payroll! but if you work the MAJORITY of your hours after 3pm or 11pm AND you work 4 or more consecutive hours in that majority time then you are paid a differential for the inconvenience of working 'off shift'. An example is that if you come in at 7am and work till 7pm -no differential because the MAJORITY of your hours were in your 'normal shift' but if you came in at 12 noon and worked till 8pm you would get paid a differential for the 3pm-8pm portion of your time because the MAJORITY of your hours are in the non-normal shift AND you worked 4 or more consecutive hours in the crossover shift, the differential amount depends on what shift you are crossing into. My wife said that there are 5 levels of shift differential, i.e. monday-Friday 7a to 3p no differential, weekday evenings one level, weekday nights another level, weekend 7-3 a third level, weekend evenings a fourth level, and weekend nights a fifth. The lowest diff is $1.05 per hour for the weekday evenings, and ranges up to $5 per hour shift diff for weekend nights 11p to 7a. Last week we put a new maggie in a Varian 6/100 and since I worked 7a to 10p I didn't get the diff. because 3p-10p is 7 hours and 7a-3p is 8 hours. bummer. I hope this is a reasonably clear explaination. -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Wednesday, January 09, 2002 10:33 AM To: 'Orsolini, Joe D'; 'Whitlock, Brian' Cc: Linac-Eng (E-mail) Subject: RE: Do you work Saturday?? Joe, You mentioned "shift differential" in your reply. Could you please elaborate on this term because we now work shifts in our clinic - we have to cover period from 6:30 am till 11:00 pm - but we are being paid the very same salary regardless of the shift. Alex Rozenblat Questions expressed in this mail will never be asked by our management. -----Original Message----- From: Orsolini, Joe D [mailto:GDO7Q@hscmail.mcc.virginia.edu] Sent: 09 January 2002 08:22 To: 'Whitlock, Brian' Cc: Linac-Eng (E-mail) Subject: RE: Do you work Saturday?? for the most part Brian, it depends on the patient load, however if we do have to do maintenance or support on a Saturday or Sunday, we are asked to take the time off sometime during the pay period, but that can't always happen. Policy is to try to take the time off if it won't impact your other duties. However, we are paid a shift differential for working a non-normal shift, and thats regardless whether we take the time off during the week, or have to get paid the time and a half. Occasionally we will break up PMI's over two or three evenings so that we don't have to work the weekend, and it doesn't impact the Linac's schedule. Giuseppe 'Joe' Orsolini RT Imaging Physics Specialist University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-963-2220 (pager) -----Original Message----- From: Whitlock, Brian [mailto:BWhitlock@poole-tr.swest.nhs.uk] Sent: Wednesday, January 09, 2002 4:44 AM To: linac eng (E-mail) Subject: Do you work Saturday?? Does anyone out there have to work on a Saturday to cover routine maintenance and or Linac repair. If the answer is yes, how does your hospital pay you. i.e. time and a half days off in lieu etc. I would be grateful for any advice on what has been agreed elsewhere, especially UK hospitals. Please reply direct to me at the address below. Thanks Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 17:59:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OM4b-0004pc-00; Wed, 9 Jan 2002 17:59:33 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id A3A801112F1; Wed, 9 Jan 2002 17:47:28 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id KAA08248 for linac-eng-list; Wed, 9 Jan 2002 10:38:56 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA08243 for ; Wed, 9 Jan 2002 10:38:55 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id KAA26224; Wed, 9 Jan 2002 10:34:34 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B3C.005AFDF5 ; Wed, 9 Jan 2002 10:33:52 -0600 X-Lotus-FromDomain: MDACC To: Chris Barnardo Cc: "Whitlock, Brian" , "Linac-Engineers, Listserver" Message-ID: <86256B3C.005AFC3C.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 9 Jan 2002 10:33:00 -0600 Subject: Re: Do you work Saturday?? Mime-Version: 1.0 Content-type: multipart/mixed; Boundary="0__=OCYrylCrHyOfP909fFCGoBkGKJgnzaQUwoe13rJl4xD8zKKvwWCtJaOe" Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Chris Barnardo Cc: "Whitlock, Brian" , "Linac-Engineers, Listserver" Date: Wed, 9 Jan 2002 10:33:00 -0600 Subject: Re: Do you work Saturday?? Content-type: multipart/mixed; Boundary="0__=OCYrylCrHyOfP909fFCGoBkGKJgnzaQUwoe13rJl4xD8zKKvwWCtJaOe" Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --0__=OCYrylCrHyOfP909fFCGoBkGKJgnzaQUwoe13rJl4xD8zKKvwWCtJaOe Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sadly, we no longer have "PM days" here at MD Anderson during the week anymore. In fact, nealry all 14 of our operating linacs are treating 12-14 hours per day Monday -Friday, and we do up to one day's worth on one machine on Saturdays. The majority of our scheduled service is performed on weekends. Due to staffing shortages here, we have engaged in "shared" service contracts with some of the vendors to do some of these tasks, and they work with one or more of our personnel on hand to coordinate and facilitate. Our folks get time and a half for working more than 40 hours in a week, or "comp" time off, as it suits them. My feeling is that quality inherently suffers a bit as a result of this approach. There just isn't the logistics and infrastructure available on weekends that we have during the week. But, the powers that be have made their decision. Tim Waldron Chris Barnardo on 01/09/2002 08:21:34 AM To: "Whitlock, Brian" , "Linac-Engineers, Listserver" cc: (bcc: Timothy J. Waldron/MDACC) Subject: Re: Do you work Saturday?? Currently we only work weekends for emergency repair of our machines. We try to cover the routine maint. on our PM days which is Friday. However, if we work weekends the pay rate is double time, or time off. "Whitlock, Brian" wrote: > Does anyone out there have to work on a Saturday to cover routine > maintenance and or Linac repair. > If the answer is yes, how does your hospital pay you. i.e. time and a half > days off in lieu etc. > > I would be grateful for any advice on what has been agreed elsewhere, > especially UK hospitals. > Please reply direct to me at the address below. > > Thanks > > Brian Whitlock > Radiotherapy Physics > Poole Hospital > Longfleet Road > Poole, Dorset. BH15 2JB > > Tel 01202 448175 > email bwhitlock@poole-tr.swest.nhs.uk --0__=OCYrylCrHyOfP909fFCGoBkGKJgnzaQUwoe13rJl4xD8zKKvwWCtJaOe Content-type: application/octet-stream; name="cbarnardo.vcf" Content-Disposition: attachment; filename="cbarnardo.vcf" Content-transfer-encoding: base64 YmVnaW46dmNhcmQgDQpuOkJhcm5hcmRvO0NocmlzDQp0ZWw7ZmF4OigzMDYpIDY1NS0yNzAxDQp0 ZWw7d29yazooMzA2KSA2NTUtMjY5OQ0KeC1tb3ppbGxhLWh0bWw6RkFMU0UNCm9yZzpTYXNrYXRv b24gQ2FuY2VyIENlbnRyZTtNZWRpY2FsIFBoeXNpY3MNCmFkcjo7OzIwIENhbXB1cyBEcml2ZTtT YXNrYXRvb247U2FzaztTN04gNEg0O0NhbmFkYQ0KdmVyc2lvbjoyLjENCmVtYWlsO2ludGVybmV0 OmNiYXJuYXJkb0BzY2Yuc2suY2ENCnRpdGxlOkVsZWN0cm9uaWNzIFRlY2hub2xvZ2lzdA0KZm46 QmFybmFyZG8gQ2hyaXMNCmVuZDp2Y2FyZA0KDQo= --0__=OCYrylCrHyOfP909fFCGoBkGKJgnzaQUwoe13rJl4xD8zKKvwWCtJaOe-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 18:27:46 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OMVu-0004xl-00; Wed, 9 Jan 2002 18:27:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4D4681112F1; Wed, 9 Jan 2002 18:15:41 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA09157 for linac-eng-list; Wed, 9 Jan 2002 11:07:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from swchsc.on.ca ([142.76.1.62]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09153 for ; Wed, 9 Jan 2002 11:07:35 -0600 (CST) Received: by swchsc.on.ca; id KAA11112; Wed, 9 Jan 2002 10:32:30 -0500 (EST) Received: from nodnsquery(142.76.240.40) by WebShield.swchsc.on.ca via csmap (V4.1) id srcAAAtMa4Sv; Wed, 9 Jan 02 10:32:29 -0500 Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Wed, 9 Jan 2002 10:32:46 -0500 Message-ID: From: "Rozenblat, Alex" To: "'Orsolini, Joe D'" , "'Whitlock, Brian'" Cc: "Linac-Eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 10:32:36 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'Orsolini, Joe D'" , "'Whitlock, Brian'" Cc: "Linac-Eng (E-mail)" Subject: RE: Do you work Saturday?? Date: Wed, 9 Jan 2002 10:32:36 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Joe, You mentioned "shift differential" in your reply. Could you please elaborate on this term because we now work shifts in our clinic - we have to cover period from 6:30 am till 11:00 pm - but we are being paid the very same salary regardless of the shift. Alex Rozenblat Questions expressed in this mail will never be asked by our management. -----Original Message----- From: Orsolini, Joe D [mailto:GDO7Q@hscmail.mcc.virginia.edu] Sent: 09 January 2002 08:22 To: 'Whitlock, Brian' Cc: Linac-Eng (E-mail) Subject: RE: Do you work Saturday?? for the most part Brian, it depends on the patient load, however if we do have to do maintenance or support on a Saturday or Sunday, we are asked to take the time off sometime during the pay period, but that can't always happen. Policy is to try to take the time off if it won't impact your other duties. However, we are paid a shift differential for working a non-normal shift, and thats regardless whether we take the time off during the week, or have to get paid the time and a half. Occasionally we will break up PMI's over two or three evenings so that we don't have to work the weekend, and it doesn't impact the Linac's schedule. Giuseppe 'Joe' Orsolini RT Imaging Physics Specialist University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-963-2220 (pager) -----Original Message----- From: Whitlock, Brian [mailto:BWhitlock@poole-tr.swest.nhs.uk] Sent: Wednesday, January 09, 2002 4:44 AM To: linac eng (E-mail) Subject: Do you work Saturday?? Does anyone out there have to work on a Saturday to cover routine maintenance and or Linac repair. If the answer is yes, how does your hospital pay you. i.e. time and a half days off in lieu etc. I would be grateful for any advice on what has been agreed elsewhere, especially UK hospitals. Please reply direct to me at the address below. Thanks Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 21:51:33 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OPh7-0005ER-00; Wed, 9 Jan 2002 21:51:33 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F8B11112F3; Wed, 9 Jan 2002 21:39:21 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA13067 for linac-eng-list; Wed, 9 Jan 2002 14:34:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA13063 for ; Wed, 9 Jan 2002 14:34:31 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Wed, 9 Jan 2002 12:33:55 -0800 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian Clinac 2100c Couch Lift Date: Wed, 9 Jan 2002 12:33:15 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian Clinac 2100c Couch Lift Date: Wed, 9 Jan 2002 12:33:15 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Our 2100C sounds like it is under a very heavy when driven upward. Sometimes it stops and then it will start up again (I am pretty sure it is going into current limit). If a couple of us sit on the couch it goes up a few inches very slowly and stops. It will then resume again in a few seconds. Obviously there is either something wrong with the motor drive system, motor, or possibly the mechanics. I think the mechanics are OK. I have a lot of experience on the old style Varian couch and some experience with the other drive mechanisms on this couch but I have not had to touch the lift. Does anyone have any thoughts on this as to the best way to isolate the problem on this 11 year old machine? Thank you, Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 09 22:43:05 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OQUz-0005Ig-00; Wed, 9 Jan 2002 22:43:05 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id EB13F1112F1; Wed, 9 Jan 2002 22:30:56 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id PAA14281 for linac-eng-list; Wed, 9 Jan 2002 15:27:16 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA14274 for ; Wed, 9 Jan 2002 15:27:15 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id PAA09747; Wed, 9 Jan 2002 15:23:37 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B3C.00757D0B ; Wed, 9 Jan 2002 15:23:17 -0600 X-Lotus-FromDomain: MDACC To: "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Message-ID: <86256B3C.00757BC3.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 9 Jan 2002 15:22:26 -0600 Subject: Re: Varian Clinac 2100c Couch Lift Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Date: Wed, 9 Jan 2002 15:22:26 -0600 Subject: Re: Varian Clinac 2100c Couch Lift Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The sound may be the most useful symptom. This is most likely one of the lead screw bearings has become dry or failed. Try greasing the screw itself, and the zerk fittings at the bottom where the lift mechanism pivots. If this temporarily alleviates the symptoms, then that's it. Next most likely in my experience are the motor brushes and the tachometer. Usually tachometer failure results in excessive speed rather then slowing. Motor failures I've seen have produced pretty loud noises well before and speed change was noted. It is important that the lift screw assembly be lubricated at regular intervals to avoid premature wear, although 11 years doesn't strike me as premature. We have not had success rebuilding these. We just bite the bullet and buy the screw assembly, usually with the motor to avoid changing that out 6 months later. Tim Waldron "Wilson, Jim" on 01/09/2002 02:33:15 PM To: "'Linac Bulletin Board Posting'" cc: (bcc: Timothy J. Waldron/MDACC) Subject: Varian Clinac 2100c Couch Lift Our 2100C sounds like it is under a very heavy when driven upward. Sometimes it stops and then it will start up again (I am pretty sure it is going into current limit). If a couple of us sit on the couch it goes up a few inches very slowly and stops. It will then resume again in a few seconds. Obviously there is either something wrong with the motor drive system, motor, or possibly the mechanics. I think the mechanics are OK. I have a lot of experience on the old style Varian couch and some experience with the other drive mechanisms on this couch but I have not had to touch the lift. Does anyone have any thoughts on this as to the best way to isolate the problem on this 11 year old machine? Thank you, Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 10 00:10:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ORr9-0005OM-00; Thu, 10 Jan 2002 00:10:03 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD3F51112F1; Wed, 9 Jan 2002 23:57:53 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA17267 for linac-eng-list; Wed, 9 Jan 2002 16:45:48 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.accuray.com (exchange.accuray.com [38.169.25.170]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA17263 for ; Wed, 9 Jan 2002 16:45:46 -0600 (CST) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: Physicists or Admin X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Wed, 9 Jan 2002 14:45:45 -0800 Message-ID: <634284F16B42C249B642E5AB43FD720B13C0E1@exchange.accuray.com> Thread-Topic: Effect of I_gun on E in SL-18? Thread-Index: AcGXsnJG2Jqzbv5xQtOSamCXfYMyDQBrB8kg From: "John Somers" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id QAA17264 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Subject: Physicists or Admin X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Wed, 9 Jan 2002 14:45:45 -0800 Thread-Topic: Effect of I_gun on E in SL-18? Thread-Index: AcGXsnJG2Jqzbv5xQtOSamCXfYMyDQBrB8kg From: "John Somers" To: X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id QAA17264 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Related, or possibly unrelated, to the recent discussion about the name of a group of physicists, is this info related to administrators. This may or may not help in our efforts to be appreciated and adequately paid. But hopefully it will lighten the load a bit. Enjoy! Investigators at a major research institute have discovered the heaviest element known to science. This startling new discovery has been tentatively named "ADMINISTRATIUM" (Ad). This new element has no protons or electrons, thus having an atomic number of zero. It does, however, have one neutron, 125 assistant neutrons, 75 vice neutrons, and 111 assistant vice neutrons, giving it an atomic mass of 312. These 312 particles are held together by a force called morons, which are surrounded by vast quantities of lepton-like particles called peons. Since it has no electrons, Administratium is inert. However, it can be detected as it impedes every (re)action with which it comes into contact. According to the discoverers, a minute amount of Administratium causes one (re)action to take more than four days to complete when it would normally take less than one second. Administratium has a normal half-life of approximately three years. It does not decay but, instead, undergoes a reorganization in which a portion of the assistant neutrons, vice neutrons and assistant vice neutrons exchange places. In fact, an Administratium sample's mass will actually increase over time since, with each reorganization, some of the morons inevitably become neutrons, forming new isotopes. This characteristic of moron promotion leads some scientists to speculate that Administratium is formed whenever morons reach a certain quantity in concentration. This hypothetical quantity is referred to as "the critical mor(e)ass". You will know it when you see it. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 10 00:51:08 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OSUu-0005Qo-00; Thu, 10 Jan 2002 00:51:08 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 05A6D1112F1; Thu, 10 Jan 2002 00:38:57 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id RAA18307 for linac-eng-list; Wed, 9 Jan 2002 17:35:58 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA18303 for ; Wed, 9 Jan 2002 17:35:55 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id MAA14074 for ; Thu, 10 Jan 2002 12:31:21 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Thu, 10 Jan 2002 12:35:19 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Thu, 10 Jan 2002 12:35:03 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 10 Jan 2002 12:34:49 +1300 From: "Dave Pinchin" To: , Subject: Re: Varian Clinac 2100c Couch Lift Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA18304 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 10 Jan 2002 12:34:49 +1300 From: "Dave Pinchin" To: , Subject: Re: Varian Clinac 2100c Couch Lift Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA18304 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day Jim, We have had a problem with the greesing of lead screws at various times. And like Tim we always apply greese to the shaft directly as well as the zerk fittings. Our reasoning is that when the screw is in tight contact with the nut the greese squidges on the unloaded faces rather than the loaded faces where it is needed. Applying directly to the screw solves this. Another thought is to check the 100v supply voltage for the aerotech drivers. It is derived from a 3 phase rectifier (with a fuse in each phase) and if one leg is dead...... Test it under load conditions. Good luck. Dave >>> "Wilson, Jim" 10/01/02 09:33:15 >>> Our 2100C sounds like it is under a very heavy when driven upward. Sometimes it stops and then it will start up again (I am pretty sure it is going into current limit). If a couple of us sit on the couch it goes up a few inches very slowly and stops. It will then resume again in a few seconds. Obviously there is either something wrong with the motor drive system, motor, or possibly the mechanics. I think the mechanics are OK. I have a lot of experience on the old style Varian couch and some experience with the other drive mechanisms on this couch but I have not had to touch the lift. Does anyone have any thoughts on this as to the best way to isolate the problem on this 11 year old machine? Thank you, Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. * * This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 10 10:47:49 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OboL-0007SN-00; Thu, 10 Jan 2002 10:47:49 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7C2A81112F9; Thu, 10 Jan 2002 10:35:31 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id DAA25241 for linac-eng-list; Thu, 10 Jan 2002 03:30:04 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA25237 for ; Thu, 10 Jan 2002 03:30:03 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16ObWc-0006Lm-00; Thu, 10 Jan 2002 09:29:30 +0000 Received: from relay.nhs.uk (194.62.42.123) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C3CA1C400009CFF for linac-eng@plato1.aristotle.net; Thu, 10 Jan 2002 09:29:30 +0000 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-2 6.0.037) id 3C3D1FF600006A08 for linac-eng@plato1.aristotle.net; Thu, 10 Jan 2002 09:29:30 +0000 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Thu, 10 Jan 2002 09:29:40 -0000 Message-ID: <37106221CAA3D511AC1800508BD31603087216@OBERON> From: "Whitlock, Brian" To: "linac eng (E-mail)" Subject: Do you work Saturday - A Summary Date: Thu, 10 Jan 2002 09:30:19 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id DAA25238 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "linac eng (E-mail)" Subject: Do you work Saturday - A Summary Date: Thu, 10 Jan 2002 09:30:19 -0000 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id DAA25238 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Many have asked for a summary of replies to my question yesterday. In general, it would be fair to say most are getting time and a half for Saturday and double time for Sunday. Also in many cases a day off in lieu also being given in addition, for working a weekend day. The worst case is just plain time. The best is £200 plus a day off in lieu. Here at Poole we have been given 2 incremental points for shifting all weekly QA out of hours. Therefore the Linacs work 8am to 6pm, five days. It is becoming more difficult to fit general repairs/maintenance into the normal working week, so we are now looking for a way forward which may involve some Saturday working. Thanks to all who took the time to reply. Happy New Year to all Linac people. Brian. Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 10 17:09:55 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Ohm7-0002Io-00; Thu, 10 Jan 2002 17:09:55 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2EB961112F1; Thu, 10 Jan 2002 16:57:33 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA28664 for linac-eng-list; Thu, 10 Jan 2002 09:41:04 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu (global16-24.pix.hs.uab.edu [164.111.16.24]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA28660 for ; Thu, 10 Jan 2002 09:41:02 -0600 (CST) Received: from gw5.uabmc.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA4BD0 for ; Thu, 10 Jan 2002 09:38:02 -0600 Received: from UAB-MTA by gw5.uabmc.edu with Novell_GroupWise; Thu, 10 Jan 2002 09:40:20 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0 Date: Thu, 10 Jan 2002 09:40:10 -0600 From: "Stephen Jordan" To: Subject: Klystron saturation Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA28661 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 10 Jan 2002 09:40:10 -0600 From: "Stephen Jordan" To: Subject: Klystron saturation Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA28661 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Can someone please fax/email/explain the HE Clinac klystron saturation procedure for me? I need to record the J1 / J2 values and want to make sure I'm doing it right...I've got a vague recollection, but as you all know, vague doesn't cut it in this business....LOL. **BTW** I want to express my thanks to all the great minds out there that give their time for us LINAC rookies...this group is unbelievable; No smoke, just heartfelt opinion. Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 10 17:51:57 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OiQn-0002OW-00; Thu, 10 Jan 2002 17:51:57 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1660D1112F1; Thu, 10 Jan 2002 17:39:33 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id KAA29798 for linac-eng-list; Thu, 10 Jan 2002 10:30:22 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29794 for ; Thu, 10 Jan 2002 10:30:19 -0600 (CST) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id LAA00757; Thu, 10 Jan 2002 11:25:41 -0500 (EST) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma000595; Thu, 10 Jan 02 11:25:08 -0500 Subject: Lichtenberg figures To: linac-eng@plato1.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Thu, 10 Jan 2002 10:30:01 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.8 |June 18, 2001) at 01/10/2002 10:30:02 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Lichtenberg figures To: linac-eng@plato1.aristotle.net Date: Thu, 10 Jan 2002 10:30:01 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.8 |June 18, 2001) at 01/10/2002 10:30:02 AM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Good day... I am interested in finding any information available on how to produce these... The physicist at our center used to have a procedure for this and we would like to use our 2100c if possible and not damage the accelerator in any way... If anyone could help with information or location of materials we would appreciate it..,.. Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl.. 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 10 18:07:15 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Oifb-0002T1-00; Thu, 10 Jan 2002 18:07:15 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7B4F11112F1; Thu, 10 Jan 2002 17:54:52 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA00436 for linac-eng-list; Thu, 10 Jan 2002 10:48:45 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA00432 for ; Thu, 10 Jan 2002 10:48:44 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16OiNA-0002uf-00; Thu, 10 Jan 2002 16:48:12 +0000 Received: from relay.nhs.uk (194.62.42.123) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C3CA1C40002C690 for linac-eng@plato1.aristotle.net; Thu, 10 Jan 2002 16:48:12 +0000 Received: from exchange2.hillsrd (193.130.72.200) by relay.nhs.uk (Syntegra-2 6.0.037) id 3C3D242600033376 for linac-eng@plato1.aristotle.net; Thu, 10 Jan 2002 16:48:12 +0000 Received: by mail.addenbrookes.anglox.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Thu, 10 Jan 2002 16:48:27 -0000 Message-ID: <07EBC420AD13D5118C6A0002A52865C23B1474@mail.addenbrookes.anglox.nhs.uk> From: "Twyman, Paul" To: "'LINAC-ENG'" Subject: Panel off on Varian EXT couch Date: Thu, 10 Jan 2002 16:48:27 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Twyman, Paul" To: "'LINAC-ENG'" Subject: Panel off on Varian EXT couch Date: Thu, 10 Jan 2002 16:48:27 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi to all Thanks to all those that responded to my request for help regarding the Couch Keypad Controller problems I was having. The 'Panel Off' legend was the on indication - there were no other lamps on. I swapped the processor chips from one side to the other and hey presto the fault moved sides. A new processor is on order as I mail. Thanks again to all Paul T Medical Physics dept Box 152 Addenbrookes hospital Cambridge CB2 2QQ United Kingdom tel 01223 586782 fax 01223 257137 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 10 19:45:49 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OkCy-0002g2-00; Thu, 10 Jan 2002 19:45:49 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E681A1112F1; Thu, 10 Jan 2002 19:33:24 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id MAA02929 for linac-eng-list; Thu, 10 Jan 2002 12:23:19 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailserver.xrt.upenn.edu (email.xrt.upenn.edu [165.123.248.180]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA02925 for ; Thu, 10 Jan 2002 12:23:18 -0600 (CST) Received: by KILLION.NRCC.XRT.UPENN.EDU with Internet Mail Service (5.5.2650.21) id ; Thu, 10 Jan 2002 13:31:00 -0500 Message-ID: From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100cd for sale Date: Thu, 10 Jan 2002 13:30:56 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C19A04.F149B210" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100cd for sale Date: Thu, 10 Jan 2002 13:30:56 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C19A04.F149B210" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C19A04.F149B210 Content-Type: text/plain; charset="iso-8859-1" The Hospital of the University of Pennsylvania department of Radiation Oncology will be taking bids on a Varian 2100cd. Interested parties need to keep in mind that the awarded party will be responsible for removal and shipment of equipment agreed on by the University of Pennsylvania and the awarded party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian. This accelerator is used for daily clinical treatment and has been upgraded with many features. Installed in 1988 and fully operational since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories along with an ETR couch and independent jaws with enhanced dynamic wedge capability. This accelerator has been setup with the following energies 6x 15x 6e 9e 12e 16e 20e Interested parties with questions or would like to setup a time to see the equipment can contact: Rick Kreider Chief of Engineering Hospital of the University of Pennsylvania Department of Radiation Oncology Kreider@xrt.upenn.edu Tel: 215-662-6749 Fax: 215-662-6762 ------_=_NextPart_001_01C19A04.F149B210 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The University of Pennsylvania Hospital department of Radiation = Oncology will be taking bids on a Varian 2100c

The Hospital of the University of Pennsylvania department of = Radiation Oncology will be taking bids on a Varian 2100cd. Interested parties = need to keep in mind that the awarded party will be responsible for removal and shipment of equipment agreed on by the University of Pennsylvania and = the awarded party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian.

 

This accelerator is used for daily clinical treatment and has = been upgraded with many features. Installed in 1988 and fully operational = since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories = along with an ETR couch and independent jaws with enhanced dynamic wedge = capability.

 

This accelerator has been setup with the following = energies

6x  15x  6e  9e  12e  16e  20e

 

Interested parties with questions or would like to setup a time = to see the equipment

can contact:

 

Rick Kreider

Chief of Engineering

Hospital of the University of Pennsylvania

Department of Radiation Oncology

Kreider@xrt.upenn.edu

Tel: 215-662-6749

Fax: 215-662-6762

  =

------_=_NextPart_001_01C19A04.F149B210-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 01:22:14 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16OpSY-00034p-00; Fri, 11 Jan 2002 01:22:14 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1628A1112F1; Fri, 11 Jan 2002 01:09:45 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id RAA09642 for linac-eng-list; Thu, 10 Jan 2002 17:58:58 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from burnia.dmz.health.nsw.gov.au (burnia.dmz.health.nsw.gov.au [203.5.110.252]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id RAA09637 for ; Thu, 10 Jan 2002 17:58:47 -0600 (CST) Received: by burnia.dmz.health.nsw.gov.au; (5.65v4.0/1.3/10May95) id AA02214; Fri, 11 Jan 2002 10:58:15 +1100 Received: from mxscan ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.0-24 #44005) with SMTP id <01KCXXT013YQ003ZM3@health.nsw.gov.au> for linac-eng@plato1.aristotle.net; Fri, 11 Jan 2002 10:58:10 -0500 (EST) Received: from DOH_HUB-Message_Server by doh.health.nsw.gov.au with Novell_GroupWise; Fri, 11 Jan 2002 10:54:42 +1100 Date: Fri, 11 Jan 2002 11:56:14 +1100 From: Reynolds Subject: MU1+MU2 To: linac-eng@plato1.aristotle.net Message-Id: Mime-Version: 1.0 X-Mailer: Novell GroupWise 5.5.2 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA09639 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 11:56:14 +1100 From: Reynolds Subject: MU1+MU2 To: linac-eng@plato1.aristotle.net Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id RAA09639 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Does any body have a written procedure for setting up MU1-MU2? on a 2100CD.S/N-497 Thanks in advance gentlemen Vince Reynolds Royal North Shore Hospital Sydney ********************************************************************* This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health. ********************************************************************* 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 12:41:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P049-0006Zy-00; Fri, 11 Jan 2002 12:41:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 87BCB1112F1; Fri, 11 Jan 2002 12:29:08 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id FAA16265 for linac-eng-list; Fri, 11 Jan 2002 05:22:57 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp1.wienkav.at (smtp2.wienkav.at [217.116.64.23]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA16261 for ; Fri, 11 Jan 2002 05:22:55 -0600 (CST) Received: from kavcvp01.wienkav.at ([10.2.11.21]) by smtp1.wienkav.at (8.9.3/8.9.3/Debian 8.9.3-21) with SMTP id MAA26994 for ; Fri, 11 Jan 2002 12:22:19 +0100 Received: from smtp2.wienkav.at ([10.2.11.24]) by kavcvp01.wienkav.at (NAVGW 2.5.1.15) with SMTP id M2002011112221919113 for ; Fri, 11 Jan 2002 12:22:19 +0100 Received: from xcbh1.xund.magwien.gv.at ([10.2.2.109]) by smtp2.wienkav.at (8.9.3/8.9.3/Debian 8.9.3-21) with ESMTP id MAA26988 for ; Fri, 11 Jan 2002 12:22:18 +0100 Received: by XCBH1 with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Jan 2002 12:22:18 +0100 Message-ID: <1F9F981EFAA2D311AF7C00508B5D54F902647460@xcsmz1.xund.magwien.gv.at> From: =?iso-8859-1?Q?B=FCchler_Felix?= To: "Linac-Eng (E-Mail)" Subject: Work on Saturday Date: Fri, 11 Jan 2002 12:22:17 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C19A92.3A0085A0" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: =?iso-8859-1?Q?B=FCchler_Felix?= To: "Linac-Eng (E-Mail)" Subject: Work on Saturday Date: Fri, 11 Jan 2002 12:22:17 +0100 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C19A92.3A0085A0" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C19A92.3A0085A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi to all, I have just a (maybe stupid) question: Why not have one day PM during the week and treat patients on Saturday = ? For the patients it would be better (in medical terms) not to have two consecutive days without irradiation and the staff could rotate with a = free day in the week. Looking forwards to your ideas regards Felix Ing. Felix B=FCchler Institute of Radiation Oncology SMZ Ost / Danube - Hospital=20 Langobardenstr. 122 1220 Wien Vienna / Austria Tel. +43 (1) 28802 2731 Fax. +43 (1) 28802 2728 ------_=_NextPart_001_01C19A92.3A0085A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Work on Saturday

Hi to all,
I have just a (maybe stupid) = question:

Why not have one day PM during the = week and treat patients on Saturday ?

For the patients it would be better = (in medical terms) not to have two consecutive days without irradiation = and the staff could rotate with a free day in the week.

Looking forwards to your ideas
regards
Felix


Ing. Felix B=FCchler
Institute of Radiation = Oncology
SMZ Ost / Danube - Hospital
Langobardenstr. 122
1220 Wien
Vienna / Austria
Tel. +43 (1) 28802 2731
Fax. +43 (1) 28802 2728


------_=_NextPart_001_01C19A92.3A0085A0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 13:19:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P0ev-00072k-00; Fri, 11 Jan 2002 13:19:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6C94F1112F1; Fri, 11 Jan 2002 13:07:08 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA16756 for linac-eng-list; Fri, 11 Jan 2002 06:04:26 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA16752 for ; Fri, 11 Jan 2002 06:04:25 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id C69151112F1; Fri, 11 Jan 2002 12:51:47 +0100 (MET) Received: from kriek.radcl.ruu.nl [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P0PR-0006qg-00; Fri, 11 Jan 2002 13:03:45 +0100 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 11 Jan 02 12:53:22 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 11 Jan 02 12:53:14 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "Linac-Eng (E-Mail)" , Date: Fri, 11 Jan 2002 12:53:12 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Subject: Re: Work on Saturday In-reply-to: <1F9F981EFAA2D311AF7C00508B5D54F902647460@xcsmz1.xund.magwien.gv.at> X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from Quoted-printable to 8bit by plato1.aristotle.net id GAA16753 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "Linac-Eng (E-Mail)" , Date: Fri, 11 Jan 2002 12:53:12 +0100 Content-type: text/plain; charset=ISO-8859-1 Subject: Re: Work on Saturday In-reply-to: <1F9F981EFAA2D311AF7C00508B5D54F902647460@xcsmz1.xund.magwien.gv.at> X-MIME-Autoconverted: from Quoted-printable to 8bit by plato1.aristotle.net id GAA16753 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk In the UK, the main reply I got to this was that there were not all the neccessary support staff available. When you think about it this is obviously very true. Here's a list of some of the staff who would be needed: Radiographers, Doctors, Nursing staff, Physicist, Technical staff, admin staff, transport etc.. This may all change of course, following on some studies which (I believe) indicate that 7-day a week treatment is radiobiologically(sp?) better. If this is introduced, then the only real answer is for more machines in order that patients can be switched if one is out for pm/qc etc... Regards Stuart E Vessey UMC Utrecht From: Büchler Felix To: "Linac-Eng (E-Mail)" Subject: Work on Saturday > Hi to all, > I have just a (maybe stupid) question: > > Why not have one day PM during the week and treat patients on Saturday ? > > For the patients it would be better (in medical terms) not to have two > consecutive days without irradiation and the staff could rotate with a free > day in the week. > > Looking forwards to your ideas > regards > Felix > > > Ing. Felix Büchler > Institute of Radiation Oncology > SMZ Ost / Danube - Hospital > Langobardenstr. 122 > 1220 Wien > Vienna / Austria > Tel. +43 (1) 28802 2731 > Fax. +43 (1) 28802 2728 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 15:13:07 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P2Qd-0000MI-00; Fri, 11 Jan 2002 15:13:07 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 755D41112F1; Fri, 11 Jan 2002 15:00:28 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA18718 for linac-eng-list; Fri, 11 Jan 2002 07:56:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hrccex.hrcc.on.ca (hrccfire.hrcc.on.ca [209.167.169.190]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id HAA18711 for ; Fri, 11 Jan 2002 07:56:29 -0600 (CST) Received: from SMTP agent by mail gateway Fri, 11 Jan 2002 09:26:59 -0500 Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Jan 2002 08:54:27 -0500 Message-ID: <9C688FB52A05D51194750002B325B5F734108F@hrccex.hrcc.on.ca> From: "Ukos, John" To: "'Wilson, Jim'" , "'Linac Bulletin Board Posting'" Subject: RE: Varian Clinac 2100c Couch Lift Date: Fri, 11 Jan 2002 08:54:19 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Ukos, John" To: "'Wilson, Jim'" , "'Linac Bulletin Board Posting'" Subject: RE: Varian Clinac 2100c Couch Lift Date: Fri, 11 Jan 2002 08:54:19 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We have had the same symptom's and motor replacement was the fix. Replacing the motor is probably as quick and definitely more informative than any test. We keep one on hand since the machine is "down" if the couch vertical motor fails. Make sure you use the safety blocks before working on it and remember to remove them before driving the couch down(Those roller bearings on the scissors are not indestructible) -----Original Message----- From: Wilson, Jim [mailto:JWilson3@providence.org] Sent: Wednesday, January 09, 2002 3:33 PM To: 'Linac Bulletin Board Posting' Subject: Varian Clinac 2100c Couch Lift Our 2100C sounds like it is under a very heavy when driven upward. Sometimes it stops and then it will start up again (I am pretty sure it is going into current limit). If a couple of us sit on the couch it goes up a few inches very slowly and stops. It will then resume again in a few seconds. Obviously there is either something wrong with the motor drive system, motor, or possibly the mechanics. I think the mechanics are OK. I have a lot of experience on the old style Varian couch and some experience with the other drive mechanisms on this couch but I have not had to touch the lift. Does anyone have any thoughts on this as to the best way to isolate the problem on this 11 year old machine? Thank you, Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 15:29:44 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P2gi-0000Yf-00; Fri, 11 Jan 2002 15:29:44 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 117831112F1; Fri, 11 Jan 2002 15:17:05 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA18888 for linac-eng-list; Fri, 11 Jan 2002 08:14:06 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id IAA18884 for ; Fri, 11 Jan 2002 08:14:04 -0600 (CST) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Fri, 11 Jan 2002 07:13:33 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Jan 2002 07:13:33 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D07523606CB@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato1.aristotle.net'" Subject: Saturday Work Date: Fri, 11 Jan 2002 07:13:31 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato1.aristotle.net'" Subject: Saturday Work Date: Fri, 11 Jan 2002 07:13:31 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello All, I don't seem to work much on Saturday's. At least not often enough to have to worry about it. I have shifted my schedule so I get more time on the machines. I usually work 12 PM to 8:30 PM on Mon, Tues, and Thursday. I work 3 PM to 11 PM on Wednesday and 7:30 AM to 4 PM on Friday. This has allowed more time on the machines and unless I get called in early for an outage I get to sleep in 4 days a week. Not the best schedule in the world but it has cut my overtime by more than half for the last year and the machines seem to run better. Of course there are always those days when that doesn't seem to hold true. Just my 2 cents worth. Have a great weekend everyone, Dan Watters University Medical Center Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 16:43:05 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P3ph-0001nh-00; Fri, 11 Jan 2002 16:43:05 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 064E21112F1; Fri, 11 Jan 2002 16:30:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA22018 for linac-eng-list; Fri, 11 Jan 2002 09:26:24 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu (global16-24.pix.hs.uab.edu [164.111.16.24]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA22014 for ; Fri, 11 Jan 2002 09:26:23 -0600 (CST) Received: from gw5.uabmc.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA71F for ; Fri, 11 Jan 2002 09:23:21 -0600 Received: from INET-MTA by gw5.uabmc.edu with Novell_GroupWise; Fri, 11 Jan 2002 09:25:40 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Fri, 11 Jan 2002 09:25:28 -0600 From: "Stephen Jordan" To: Subject: ETR Couch bearing failure Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 09:25:28 -0600 From: "Stephen Jordan" To: Subject: ETR Couch bearing failure Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Howdy! My ETR couch on the 2100C (078) has a broken lower scissor shaft bearing (it's the bearing that is pressed on the support shaft, inside the fixed track)....Has anyone replaced / sourced this bearing? Please help!!!! (And yes,I'll wear the linac-eng DA hat for the next week...I left the safety brace in the couch, it's a long story.) Steve Jordan, DA extraordinaire UAB Environmental Services, Toilet Div. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 16:59:32 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P45b-0001vg-00; Fri, 11 Jan 2002 16:59:31 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 04D731112F3; Fri, 11 Jan 2002 16:46:51 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA22300 for linac-eng-list; Fri, 11 Jan 2002 09:42:00 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mbpcc_exchange.ololrmc.com ([64.56.25.163]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA22296 for ; Fri, 11 Jan 2002 09:41:53 -0600 (CST) Received: by MBPCC_EXCHANGE with Internet Mail Service (5.5.2650.21) id ; Fri, 11 Jan 2002 09:39:02 -0600 Message-ID: <32BB029387A6D4118C7F00C00D00433114319B@MBPCC_EXCHANGE> From: "Hidalgo, Dr Oscar" To: =?iso-8859-1?Q?=27B=FCchler_Felix=27?= , "Linac-Eng (E-Mail)" Subject: RE: Work on Saturday Date: Fri, 11 Jan 2002 09:39:01 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA22297 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hidalgo, Dr Oscar" To: =?iso-8859-1?Q?=27B=FCchler_Felix=27?= , "Linac-Eng (E-Mail)" Subject: RE: Work on Saturday Date: Fri, 11 Jan 2002 09:39:01 -0600 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA22297 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I wonder what the radiation therapists and radiation oncologists would say about the idea suggested below. Oscar Hidalgo-Salvatierra, Ph.D., DABR Radiation Safety Officer Mary Bird Perkins Cancer Center Baton Rouge, LA 70809 Oscarh@marybird.com Hidalgo1@home.com -----Original Message----- From: Büchler Felix [SMTP:Felix.Buechler@SMZ.magwien.gv.at] Sent: Friday, January 11, 2002 5:22 AM To: Linac-Eng (E-Mail) Subject: Work on Saturday Hi to all, I have just a (maybe stupid) question: Why not have one day PM during the week and treat patients on Saturday ? For the patients it would be better (in medical terms) not to have two consecutive days without irradiation and the staff could rotate with a free day in the week. Looking forwards to your ideas regards Felix Ing. Felix Büchler Institute of Radiation Oncology SMZ Ost / Danube - Hospital Langobardenstr. 122 1220 Wien Vienna / Austria Tel. +43 (1) 28802 2731 Fax. +43 (1) 28802 2728 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 17:23:26 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P4Sk-00028U-00; Fri, 11 Jan 2002 17:23:26 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1E2071112F3; Fri, 11 Jan 2002 17:10:45 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA22695 for linac-eng-list; Fri, 11 Jan 2002 10:02:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from swchsc.on.ca ([142.76.1.62]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA22691 for ; Fri, 11 Jan 2002 10:02:32 -0600 (CST) Received: by swchsc.on.ca; id LAA08583; Fri, 11 Jan 2002 11:01:43 -0500 (EST) Received: from nodnsquery(142.76.240.40) by WebShield.swchsc.on.ca via csmap (V4.1) id srcAAAtuaWWq; Fri, 11 Jan 02 11:01:43 -0500 Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Jan 2002 11:01:49 -0500 Message-ID: From: "Rozenblat, Alex" To: =?iso-8859-1?Q?=27B=FCchler_Felix=27?= , "Linac-Eng (E-Mail)" Subject: RE: Work on Saturday Date: Fri, 11 Jan 2002 11:01:48 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA22692 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: =?iso-8859-1?Q?=27B=FCchler_Felix=27?= , "Linac-Eng (E-Mail)" Subject: RE: Work on Saturday Date: Fri, 11 Jan 2002 11:01:48 -0500 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA22692 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Fantastic idea! Now, go, please, to therapists and doctors and try to introduce it to them. Alex Rozenblat P.S. It's not like I am on their side but everyone knows who is a pushover in our health care environment. -----Original Message----- From: Büchler Felix [mailto:Felix.Buechler@SMZ.magwien.gv.at] Sent: 11 January 2002 06:22 To: Linac-Eng (E-Mail) Subject: Work on Saturday Hi to all, I have just a (maybe stupid) question: Why not have one day PM during the week and treat patients on Saturday ? For the patients it would be better (in medical terms) not to have two consecutive days without irradiation and the staff could rotate with a free day in the week. Looking forwards to your ideas regards Felix Ing. Felix Büchler Institute of Radiation Oncology SMZ Ost / Danube - Hospital Langobardenstr. 122 1220 Wien Vienna / Austria Tel. +43 (1) 28802 2731 Fax. +43 (1) 28802 2728 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 17:28:09 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P4XI-0002AC-00; Fri, 11 Jan 2002 17:28:09 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 55AB71112F3; Fri, 11 Jan 2002 17:15:28 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA22772 for linac-eng-list; Fri, 11 Jan 2002 10:05:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r07.mx.aol.com (imo-r07.mx.aol.com [152.163.225.103]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA22768 for ; Fri, 11 Jan 2002 10:05:28 -0600 (CST) From: Dsteimel2@aol.com Received: from Dsteimel2@aol.com by imo-r07.mx.aol.com (mail_out_v31_r1.9.) id c.12c.aa423e5 (17079) for ; Fri, 11 Jan 2002 11:04:53 -0500 (EST) Message-ID: <12c.aa423e5.29706724@aol.com> Date: Fri, 11 Jan 2002 11:04:52 EST Subject: Siemens ZXT To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_12c.aa423e5.29706724_boundary" X-Mailer: AOL 6.0 for Windows US sub 10552 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Dsteimel2@aol.com Date: Fri, 11 Jan 2002 11:04:52 EST Subject: Siemens ZXT To: linac-eng@plato1.aristotle.net Content-Type: multipart/alternative; boundary="part1_12c.aa423e5.29706724_boundary" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --part1_12c.aa423e5.29706724_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello All, It's pretty rare that I see any messages regarding Siemens equipment but thought I'd throw this one out there. One of our ZXT tables (tabletop) drops almost 1cm when extended towards the gantry. This also occurs with no load on the table. It can be observed at the lateral bearings which appear to be the fix point for longitudinal support. The longitudinal table top pivots as the head end drops and the foot end raises. It appears that the rear linear lateral bearing may be defective or possibly loose. I have torqued all mounting bolts that are accessable. Has anyone experienced this? I'm trying to figure out how to tighten that lateral bearing, but the bolts holding the bearing plates in place are not accessable without removing the table top. For the time being, the therapists are repositioning vertically as needed. Dave Steimel MIRO Farmington Hills, MI --part1_12c.aa423e5.29706724_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello All,
It's pretty rare that I see any messages regarding Siemens equipment but thought I'd throw this one out there.
One of our ZXT tables (tabletop) drops almost 1cm when extended towards the gantry. This also occurs with no load on the table. It can be observed at the lateral bearings which appear to be the fix point for longitudinal support.  The longitudinal table top pivots as the head end drops and the foot end raises. It appears that the rear linear lateral bearing may be defective or possibly loose. I have torqued all mounting bolts that are accessable.
Has anyone experienced this?  I'm trying to figure out how to tighten that lateral bearing, but the bolts holding the bearing plates in place are not accessable without removing the table top.
For the time being, the therapists are repositioning vertically as needed.

Dave Steimel
MIRO
Farmington Hills, MI    --part1_12c.aa423e5.29706724_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-medical-physics-engineering@JISCMAIL.AC.UK Fri Jan 11 17:34:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P4dW-0002C2-00; Fri, 11 Jan 2002 17:34:34 +0100 Received: from jiscmail.ac.uk (jiscmail.ac.uk [130.246.192.48]) by caviar.isi.uu.nl (Postfix) with ESMTP id A31C31112F3 for ; Fri, 11 Jan 2002 17:21:54 +0100 (MET) Received: from jiscmail (jiscmail.ac.uk) by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <2.000B3251@jiscmail.ac.uk>; Fri, 11 Jan 2002 16:32:02 +0000 Received: from JISCMAIL.AC.UK by JISCMAIL.AC.UK (LISTSERV-TCP/IP release 1.8d) with spool id 8941562 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 11 Jan 2002 16:32:01 +0000 Received: from ori.rl.ac.uk by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <6.000B313C@jiscmail.ac.uk>; Fri, 11 Jan 2002 16:22:00 +0000 Received: from baxter.finix.scot.nhs.uk (hide229.nhs.uk [195.107.47.229]) by ori.rl.ac.uk (8.11.1/8.11.1) with ESMTP id g0BGLx706399 for ; Fri, 11 Jan 2002 16:21:59 GMT Received: from gonzalo.tuht.scot.nhs.uk (localhost [127.0.0.1]) by baxter.finix.scot.nhs.uk (8.10.2+Sun/8.10.2) with ESMTP id g0BGLDG17666 for ; Fri, 11 Jan 2002 16:21:13 GMT Received: from cmradphys ([195.107.173.104]) by gonzalo.tuht.scot.nhs.uk (Netscape Messaging Server 4.15) with SMTP id GPS83500.BQN for ; Fri, 11 Jan 2002 16:21:05 +0000 References: <0E1923616624CE4D8AFD52EA2AB7187345D8AB@w2ksvr007> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Message-ID: <007601c19abc$bd50e8d0$68ad6bc3@tuht.scot.nhs.uk> Date: Fri, 11 Jan 2002 16:26:35 -0000 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: Caoimhe McIntyre Subject: Re: TLD Readers To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK *** EOOH *** Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Date: Fri, 11 Jan 2002 16:26:35 -0000 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: Caoimhe McIntyre Subject: Re: TLD Readers To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK Qados are the main suppliers. see website: http://www.quados.co.uk ----- Original Message ----- From: "Davis, John" To: Sent: Friday, January 11, 2002 4:08 PM Subject: TLD Readers > Hi everyone, > > We are looking to replace our TLD reader in the future. Can anybody let me > know who is currently supplying this type of equipment at the moment? > > Many thanks > > John Davis > Radiation Safety Service > Royal Sussex County Hospital > Eastern Road > Brighton, > BN2 5BE > 01273 664910 > > > > This message and any attachments to it is intended only for > the individual or company to which it is addressed and may > contain information which is privileged, confidential or > prohibited from disclosure or unauthorised use. If the recipient > of this transmission is not the intended recipient, or the employee > or agent responsible for delivering such materials to the intended > recipient, you are hereby notified that any use, any form of > reproduction, dissemination, copying, disclosure, modification, > distribution and/or publication of this e-mail message or its > attachments other than by its intended recipient is strictly prohibited > by the sender. If you have received it in error, please notify us > immediately using the address postmaster@brighton-healthcare.nhs.uk > and destroy the message and all copies in your possession. > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 17:34:35 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P4dX-0002C6-00; Fri, 11 Jan 2002 17:34:35 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1D2631112F5; Fri, 11 Jan 2002 17:21:54 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA23053 for linac-eng-list; Fri, 11 Jan 2002 10:16:57 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA23049 for ; Fri, 11 Jan 2002 10:16:56 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Jan 2002 08:16:25 -0800 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian Clinac 2100c Couch Lift Date: Fri, 11 Jan 2002 08:15:43 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian Clinac 2100c Couch Lift Date: Fri, 11 Jan 2002 08:15:43 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Thank you to all who responded to my inquiry concerning our couch lift problem. Indeed the motor was at fault. One of the brushes was completely non-operational due to the fact that the wire which determines the length of the brush was at least 1/4 inch shorter than the rest. The surface of the brush was actually flat and looked like it had been arcing (I'm sure it had been). The bad brush was actually longer than any of the good brushes. I replaced the brush but that didn't repair the problem. Replacing the motor did. This machine is treating 45-65 patients a day and our other machine is a CL-4. I was hoping to cut to the quick with this problem because downtime is an absolute no no. Your input helped me do that. Thanks again. Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 17:48:07 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P4qd-0002Ht-00; Fri, 11 Jan 2002 17:48:07 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7C2651112F3; Fri, 11 Jan 2002 17:35:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA23515 for linac-eng-list; Fri, 11 Jan 2002 10:30:42 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta03.fuse.net (mx3.fuse.net [216.68.1.123]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA23511 for ; Fri, 11 Jan 2002 10:30:41 -0600 (CST) Received: from fuse.net ([216.68.66.205]) by mta03.fuse.net (InterMail vM.5.01.03.01 201-253-122-118-101-20010319) with ESMTP id <20020111163054.ZKKH16058.mta03.fuse.net@fuse.net> for ; Fri, 11 Jan 2002 11:30:54 -0500 Message-ID: <3C3F1309.2BA5F157@fuse.net> Date: Fri, 11 Jan 2002 11:30:01 -0500 From: Todd Wright Reply-To: toddwright@fuse.net X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: Linac Eng Subject: Power supplies Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 11:30:01 -0500 From: Todd Wright Reply-To: toddwright@fuse.net X-Accept-Language: en To: Linac Eng Subject: Power supplies Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello All, I was trying to locate a power supply for a conventional Siemens Mevatron. They are the Sola brand 84 series 24v 50mA and +- 15v 100mA, 200mA encapsulated linear power supply. As far as I can tell, they have been discontinued and are no longer available. Does anyone have a source for this series of power supply. Thanks in advance. 1,, X-Coding-System: undecided-unix Mail-from: From owner-medical-physics-engineering@JISCMAIL.AC.UK Fri Jan 11 17:59:26 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P51Z-0002NY-00; Fri, 11 Jan 2002 17:59:26 +0100 Received: from jiscmail.ac.uk (jiscmail.ac.uk [130.246.192.48]) by caviar.isi.uu.nl (Postfix) with ESMTP id 532CD1112F3 for ; Fri, 11 Jan 2002 17:46:46 +0100 (MET) Received: from jiscmail (jiscmail.ac.uk) by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <1.000B324D@jiscmail.ac.uk>; Fri, 11 Jan 2002 16:57:32 +0000 Received: from JISCMAIL.AC.UK by JISCMAIL.AC.UK (LISTSERV-TCP/IP release 1.8d) with spool id 8942325 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 11 Jan 2002 16:57:31 +0000 Received: from ori.rl.ac.uk by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <1.000B322A@jiscmail.ac.uk>; Fri, 11 Jan 2002 16:55:46 +0000 Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by ori.rl.ac.uk (8.11.1/8.11.1) with ESMTP id g0BGPE707803 for ; Fri, 11 Jan 2002 16:25:14 GMT Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16P4UO-0002wN-00; Fri, 11 Jan 2002 16:25:08 +0000 Received: from relay.nhs.uk (194.62.42.123) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C3F094F000031C8 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 11 Jan 2002 16:25:08 +0000 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-2 6.0.037) id 3C3D1FF600082670 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 11 Jan 2002 16:25:07 +0000 X-Internal-ID: 3C3D48680000BD8D Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108) for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; 11 Jan 2002 16:22:42 +0000 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Jan 2002 16:25:19 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Message-ID: <4BD1673C955CD41182DA00508BACF2DF915E0C@YGC-MAIL> Date: Fri, 11 Jan 2002 16:25:11 -0000 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: "Jordan, Tom" Subject: Re: TLD Readers To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK *** EOOH *** X-Internal-ID: 3C3D48680000BD8D Content-Type: text/plain Date: Fri, 11 Jan 2002 16:25:11 -0000 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: "Jordan, Tom" Subject: Re: TLD Readers To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK John, The short answer is Qados (01252 878999) supply the Harshaw. (4500 manual, 5500 automatic). we went through hoops to find another supplier as we were obliged to tender. However, as we wanted one that could do radiotherapy TLD chips as well as radiation protection work, we could not find one and in the end had to go for 'single action tendering' I think it is called. If you do not wish to do chips there are a couple of others we found, with difficulty, aimed at bulk processing for protection services. I can supply details with a bit of searching through old paperwork. The Harshaw is good, but with little competition, is not cheap. Ovens also seem expensive and we found an alternative from PTW (Vertec) but that was dearer than the Eurotherm offered with the Harshaw. Tom Jordan > -----Original Message----- > From: Davis, John [SMTP:John.Davis@BRIGHTON-HEALTHCARE.NHS.UK] > Sent: 11 January 2002 16:09 > To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK > Subject: TLD Readers > > Hi everyone, > > We are looking to replace our TLD reader in the future. Can anybody let me > know who is currently supplying this type of equipment at the moment? > > Many thanks > > John Davis > Radiation Safety Service > Royal Sussex County Hospital > Eastern Road > Brighton, > BN2 5BE > 01273 664910 > > > > This message and any attachments to it is intended only for > the individual or company to which it is addressed and may > contain information which is privileged, confidential or > prohibited from disclosure or unauthorised use. If the recipient > of this transmission is not the intended recipient, or the employee > or agent responsible for delivering such materials to the intended > recipient, you are hereby notified that any use, any form of > reproduction, dissemination, copying, disclosure, modification, > distribution and/or publication of this e-mail message or its > attachments other than by its intended recipient is strictly prohibited > by the sender. If you have received it in error, please notify us > immediately using the address postmaster@brighton-healthcare.nhs.uk > and destroy the message and all copies in your possession. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 18:46:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P5ky-0002dI-00; Fri, 11 Jan 2002 18:46:20 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 395BB1112F3; Fri, 11 Jan 2002 18:33:39 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA25750 for linac-eng-list; Fri, 11 Jan 2002 11:30:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA25742 for ; Fri, 11 Jan 2002 11:30:26 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA09468; Fri, 11 Jan 2002 11:35:42 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3C3F2140.FBA328C3@scf.sk.ca> Date: Fri, 11 Jan 2002 11:30:40 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Linac-Engineers, Listserver" Subject: Varian 21EX Kly Current Content-Type: multipart/mixed; boundary="------------BBA994E7705FBD1D4C5936AC" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 11:30:40 -0600 From: Chris Barnardo X-Accept-Language: en To: "Linac-Engineers, Listserver" Subject: Varian 21EX Kly Current Content-Type: multipart/mixed; boundary="------------BBA994E7705FBD1D4C5936AC" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------BBA994E7705FBD1D4C5936AC Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi List: I am trying to check the Klystron Current on my 21EX KLM s/n 1569. I understand that you have to connect a scope to J1 on the Pulse tank. There is already a cable connected to that port. The question is .. do we disconnect that cable and check the machine with an unloaded beam, or use a tee to connect a scope in addition to that cable, and check with a mismatched load?? Also I am interested to know how to check the Klystron Fil Voltage. Either primary or secondaty. Thanks in advance. --------------BBA994E7705FBD1D4C5936AC Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------BBA994E7705FBD1D4C5936AC-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 19:54:06 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P6oY-0002x5-00; Fri, 11 Jan 2002 19:54:06 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1732E1112F3; Fri, 11 Jan 2002 19:41:24 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA26871 for linac-eng-list; Fri, 11 Jan 2002 12:38:17 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from radoncnt1.fccc.edu (radoncnt1.fccc.edu [131.249.10.49]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA26867 for ; Fri, 11 Jan 2002 12:38:16 -0600 (CST) Received: by radoncnt1.fccc.edu with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Jan 2002 13:39:32 -0500 Message-ID: From: "Liounis, Dave" To: "'toddwright@fuse.net'" , Linac Eng Subject: RE: Power supplies Date: Fri, 11 Jan 2002 13:39:31 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Liounis, Dave" To: "'toddwright@fuse.net'" , Linac Eng Subject: RE: Power supplies Date: Fri, 11 Jan 2002 13:39:31 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Todd, The powersupply you are looking for are in the Newark Electronics catalog #118 page 629. If you don't have this catalog you can call 1-800-718-1998. They also have a website www.newark.com . The +-15VDC 100ma part number is 84-15-110 newark stock # is 05F536. The 24VDC part number is 84-24-050, newark stock # is 09F1755. I hope this helps. You can also check with calex power supplies www.calex.com . -----Original Message----- From: Todd Wright [mailto:toddwright@fuse.net] Sent: Friday, January 11, 2002 11:30 AM To: Linac Eng Subject: Power supplies Hello All, I was trying to locate a power supply for a conventional Siemens Mevatron. They are the Sola brand 84 series 24v 50mA and +- 15v 100mA, 200mA encapsulated linear power supply. As far as I can tell, they have been discontinued and are no longer available. Does anyone have a source for this series of power supply. Thanks in advance. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 19:57:46 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P6s6-0002yJ-00; Fri, 11 Jan 2002 19:57:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D11EA1112F3; Fri, 11 Jan 2002 19:45:04 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA26910 for linac-eng-list; Fri, 11 Jan 2002 12:42:40 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA26906 for ; Fri, 11 Jan 2002 12:42:38 -0600 (CST) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g0BIfur02480; Fri, 11 Jan 2002 11:41:56 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.23.113]) by icelus.cancerboard.ab.ca (SendmailServer-1.0.4/8.11.1) with ESMTP id g0BIgR114861; Fri, 11 Jan 2002 11:42:27 -0700 (MST) Message-ID: <3C3F324E.5476D64B@cancerboard.ab.ca> Date: Fri, 11 Jan 2002 11:43:27 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: Chris Barnardo Cc: "Linac-Engineers, Listserver" Subject: Re: Varian 21EX Kly Current References: <3C3F2140.FBA328C3@scf.sk.ca> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 11:43:27 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Accept-Language: en To: Chris Barnardo Cc: "Linac-Engineers, Listserver" Subject: Re: Varian 21EX Kly Current Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Chris, Gospel (Varian manual) has it that you read the amplitude of J1 directly, no T or load, and divide this reading by the calibration factor stamped on the Pulse Tank. In our case the one I did last was .1/A so the KLY I was waveform amplitude/cal factor or 6.36/.1 = 63.6Amps. If you want I can send you a procedure to "run" beam so you can remain in the room to measure this or saturate the Klystron or other maintenance procedures. Better yet, get your powers above to get yourself on the Varian Tech courses( Tech II covers this). I think it is better to learn it properly than to take the chance to smoke some machinery or fry a tech.[This is a personal opinion and all the usual disclaimers apply]. As to the KLY Fil voltage, you can measure this at J7 A-B on the pulse tank, this should be 236vac nominal although here we have found it to vary somewhat(this is presently under investigation). You can also measure this in the modulator at the Kly Fil Boost. There is also a spot on the Aux Power Dist Assy (on the back of the board) to measure the Kly Fil current across K13 @TP16 - TP8 Should read 6vac for proper KFIL I/L operation. Of course you can always draining the klystron tank and measure direct which is what you do after a klystron change(also covered on course). Hope this is all clear as mud. Ed Chris Barnardo wrote: > Hi List: > > I am trying to check the Klystron Current on my 21EX KLM s/n 1569. > > I understand that you have to connect a scope to J1 on the Pulse > tank. There is already a cable connected to that port. The question is > .. do we disconnect that cable and check the machine with an unloaded > beam, or use a tee to connect a scope in addition to that cable, and > check with a mismatched load?? > > Also I am interested to know how to check the Klystron Fil Voltage. > Either primary or secondaty. > > Thanks in advance. -- Ed Rymes, B.Sc., C-Tech Technical Equipment Officer Dept. of Medical Physics Tom Baker Cancer Centre 1331 29th Street, NW Calgary, AB T2N 4N2 403-670-1791 403-670-2327 fax edwardry@cancerboard.ab.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 20:22:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P7GH-00035F-00; Fri, 11 Jan 2002 20:22:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id ABC1E1112F3; Fri, 11 Jan 2002 20:10:02 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA27772 for linac-eng-list; Fri, 11 Jan 2002 13:07:36 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta02.fuse.net (mx2.fuse.net [216.68.1.120]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA27768 for ; Fri, 11 Jan 2002 13:07:35 -0600 (CST) Received: from fuse.net ([216.68.35.120]) by mta02.fuse.net (InterMail vM.5.01.03.01 201-253-122-118-101-20010319) with ESMTP id <20020111190734.XOEN970.mta02.fuse.net@fuse.net>; Fri, 11 Jan 2002 14:07:34 -0500 Message-ID: <3C3F37CC.A38A3599@fuse.net> Date: Fri, 11 Jan 2002 14:06:52 -0500 From: Todd Wright Reply-To: toddwright@fuse.net X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: "Liounis, Dave" Cc: Linac Eng Subject: Re: Power supplies References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 14:06:52 -0500 From: Todd Wright Reply-To: toddwright@fuse.net X-Accept-Language: en To: "Liounis, Dave" Cc: Linac Eng Subject: Re: Power supplies Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Thanks for the reponse. According to Newark Electronics, they consider the 84 series discontinued. I contacted Newark prior to sending the first message. "Liounis, Dave" wrote: > Todd, > > The powersupply you are looking for are in the Newark Electronics catalog > #118 page 629. If you don't have this catalog you can call 1-800-718-1998. > They also have a website www.newark.com . The +-15VDC 100ma part number is > 84-15-110 newark stock # is 05F536. The 24VDC part number is 84-24-050, > newark stock # is 09F1755. I hope this helps. You can also check with calex > power supplies www.calex.com . > > -----Original Message----- > From: Todd Wright [mailto:toddwright@fuse.net] > Sent: Friday, January 11, 2002 11:30 AM > To: Linac Eng > Subject: Power supplies > > Hello All, > I was trying to locate a power supply for a conventional Siemens > Mevatron. They are the Sola brand 84 series 24v 50mA and +- 15v 100mA, > 200mA encapsulated linear power supply. As far as I can tell, they have > been discontinued and are no longer available. Does anyone have a > source for this series of power supply. > Thanks in advance. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 21:13:12 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P836-0003KL-00; Fri, 11 Jan 2002 21:13:12 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1F60E1112F3; Fri, 11 Jan 2002 21:00:29 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA29231 for linac-eng-list; Fri, 11 Jan 2002 13:55:40 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm10.texas.rr.com (sm10.texas.rr.com [24.93.35.222]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA29227 for ; Fri, 11 Jan 2002 13:55:38 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm10.texas.rr.com (8.12.0.Beta16/8.12.0.Beta16) with ESMTP id g0BJtRvk022860; Fri, 11 Jan 2002 13:55:30 -0600 From: "Thomas McCausland" To: Dsteimel2@aol.com, linac-eng@plato1.aristotle.net Date: Fri, 11 Jan 2002 13:55:12 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Siemens ZXT Reply-To: acceltek@acceltekservice.com Message-ID: <3C3EEEC0.6656.F50186@localhost> In-reply-to: <12c.aa423e5.29706724@aol.com> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: Dsteimel2@aol.com, linac-eng@plato1.aristotle.net Date: Fri, 11 Jan 2002 13:55:12 -0600 Content-type: text/plain; charset=US-ASCII Subject: Re: Siemens ZXT Reply-To: acceltek@acceltekservice.com In-reply-to: <12c.aa423e5.29706724@aol.com> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk From: Dsteimel2@aol.com Date sent: Fri, 11 Jan 2002 11:04:52 EST Subject: Siemens ZXT To: linac-eng@plato1.aristotle.net > > --part1_12c.aa423e5.29706724_boundary > Content-Type: text/plain; charset="US-ASCII" > Content-Transfer-Encoding: 7bit > > Hello All, > It's pretty rare that I see any messages regarding Siemens equipment Yep, thats because Siemens equipment seldom breaks > but thought I'd throw this one out there. One of our ZXT tables > (tabletop) drops almost 1cm when extended towards the gantry. This > also occurs with no load on the table. It can be observed at the > lateral bearings which appear to be the fix point for longitudinal > support. The longitudinal table top pivots as the head end drops and > the foot end raises. It appears that the rear linear lateral bearing > may be defective or possibly loose. I have torqued all mounting bolts > that are accessable. Has anyone experienced this? I'm trying to > figure out how to tighten that lateral bearing, but the bolts holding > the bearing plates in place are not accessable without removing the > table top. For the time being, the therapists are repositioning > vertically as needed. > > Dave Steimel > MIRO > Farmington Hills, MI > > --part1_12c.aa423e5.29706724_boundary > Content-Type: text/html; charset="US-ASCII" > Content-Transfer-Encoding: 7bit > > Hello All, >
It's pretty rare that I see any messages regarding Siemens > equipment but thought I'd throw this one out there.
One of our ZXT > tables (tabletop) drops almost 1cm when extended towards the gantry. > This also occurs with no load on the table. It can be observed at the > lateral bearings which appear to be the fix point for longitudinal > support.  The longitudinal table top pivots as the head end drops > and the foot end raises. It appears that the rear linear lateral > bearing may be defective or possibly loose. I have torqued all > mounting bolts that are accessable.
Has anyone experienced this? >  I'm trying to figure out how to tighten that lateral bearing, > but the bolts holding the bearing plates in place are not accessable > without removing the table top. --------------------- SNIP ------------------------- I've never seen this much drop on a ZXT before, but it does sound like you have a loose or bad bearing. Does it drop all at once when the table is extended to a specific point, or is the drop gradual? Has it always been that way, or had this problem just appeared? I've never had to adjust the bearings on a ZXT either. I imagine they are on eccentrics so they can be tightened up. You probably WILL have to take the table top off to get to them all. Sorry I'm not much help. Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 21:53:29 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P8g5-0003VA-00; Fri, 11 Jan 2002 21:53:29 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D938B1112F3; Fri, 11 Jan 2002 21:40:45 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA00229 for linac-eng-list; Fri, 11 Jan 2002 14:37:11 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm13.texas.rr.com (sm13.texas.rr.com [24.93.35.40]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA00225 for ; Fri, 11 Jan 2002 14:37:10 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm13.texas.rr.com (8.12.0.Beta16/8.12.0.Beta16) with ESMTP id g0BKdmmb014808; Fri, 11 Jan 2002 14:39:50 -0600 From: "Thomas McCausland" To: toddwright@fuse.net, Linac Eng Date: Fri, 11 Jan 2002 14:36:46 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Power supplies Reply-To: acceltek@acceltekservice.com Message-ID: <3C3EF87E.11054.11B0FF5@localhost> In-reply-to: <3C3F1309.2BA5F157@fuse.net> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: toddwright@fuse.net, Linac Eng Date: Fri, 11 Jan 2002 14:36:46 -0600 Content-type: text/plain; charset=US-ASCII Subject: Re: Power supplies Reply-To: acceltek@acceltekservice.com In-reply-to: <3C3F1309.2BA5F157@fuse.net> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Date sent: Fri, 11 Jan 2002 11:30:01 -0500 From: Todd Wright Send reply to: toddwright@fuse.net To: Linac Eng Subject: Power supplies > Hello All, > I was trying to locate a power supply for a conventional Siemens > Mevatron. They are the Sola brand 84 series 24v 50mA and +- 15v > 100mA, 200mA encapsulated linear power supply. As far as I can tell, > they have been discontinued and are no longer available. Does anyone > have a source for this series of power supply. Thanks in advance. > > Of course Siemens has them, but other than that, they are pretty common. A lot of manuf. make them. Siemens used Calex for a long while. It seemed that out in the field we saw a lot of Calex's fail. Hard to say, because they ALL fail eventually, and sometimes the failures of a partucular component seems to come in 'groups'. Maybe they were just getting a better price. I do know that Siemens eventually switched to WALL brand. I buy Walls at Atlantic Components - Boston Mass. 800-433-6600 800-282-0670 (fax) W15D500M W15D100M W15D200M Regards, Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 23:06:08 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16P9oO-0003oq-00; Fri, 11 Jan 2002 23:06:08 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D52661112F3; Fri, 11 Jan 2002 22:53:23 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA16703 for linac-eng-list; Fri, 11 Jan 2002 15:50:33 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu (global16-24.pix.hs.uab.edu [164.111.16.24]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA16699 for ; Fri, 11 Jan 2002 15:50:32 -0600 (CST) Received: from gw5.uabmc.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA4F78 for ; Fri, 11 Jan 2002 15:47:31 -0600 Received: from INET-MTA by gw5.uabmc.edu with Novell_GroupWise; Fri, 11 Jan 2002 15:49:53 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Fri, 11 Jan 2002 15:49:49 -0600 From: "Stephen Jordan" To: Subject: ETR Couch bearing failure Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 15:49:49 -0600 From: "Stephen Jordan" To: Subject: ETR Couch bearing failure Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Done....whew. If anyone wants to know how to do it, they can ask me now. LOL ;) Stev Jordan UAB Environmental Services, Plumbing Div (promoted) 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 11 23:54:57 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16PAZc-00041v-00; Fri, 11 Jan 2002 23:54:57 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BBAFB1112F3; Fri, 11 Jan 2002 23:42:11 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA17774 for linac-eng-list; Fri, 11 Jan 2002 16:37:51 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ccotrust.co.uk (marvin.ccotrust.co.uk [194.217.10.246]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA17770 for ; Fri, 11 Jan 2002 16:37:49 -0600 (CST) Received: by firewall1.ccotrust.co.uk id <27>; Fri, 11 Jan 2002 21:57:05 +0000 Message-Id: <02Jan11.215705gmt.27@firewall1.ccotrust.co.uk> From: Philip Mayles To: "Linac-Eng (E-Mail)" Subject: RE: Work on Saturday Date: Fri, 11 Jan 2002 22:35:57 +0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.0.1460.8) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id QAA17771 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Philip Mayles To: "Linac-Eng (E-Mail)" Subject: RE: Work on Saturday Date: Fri, 11 Jan 2002 22:35:57 +0000 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id QAA17771 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I replied privately about this, but as it is going on I think I should point out to the list that the costs (both social and economic) etc of bringing in the whole department (including the technical and physics staff) on a Saturday for a normal treatment day are considerably higher than the costs of bringing in the technical and physics staff only - even if they are paid enhanced rates. There is also a requirement to bring in ambulance staff, porter, doctors etc. So although it sounds good as an idea - and we also suggested it locally - in practice we have had to accept that the counter arguments are valid. One may wish to present the costs of the two alternatives to management in the course of discussions about how enhanced the rates should be. Philip Mayles Head of Physics Clatterbridge Centre for Oncology -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: 11 January 2002 16:02 To: 'Büchler Felix'; Linac-Eng (E-Mail) Subject: RE: Work on Saturday Fantastic idea! Now, go, please, to therapists and doctors and try to introduce it to them. Alex Rozenblat P.S. It's not like I am on their side but everyone knows who is a pushover in our health care environment. -----Original Message----- From: Büchler Felix [mailto:Felix.Buechler@SMZ.magwien.gv.at] Sent: 11 January 2002 06:22 To: Linac-Eng (E-Mail) Subject: Work on Saturday Hi to all, I have just a (maybe stupid) question: Why not have one day PM during the week and treat patients on Saturday ? For the patients it would be better (in medical terms) not to have two consecutive days without irradiation and the staff could rotate with a free day in the week. Looking forwards to your ideas regards Felix Ing. Felix Büchler Institute of Radiation Oncology SMZ Ost / Danube - Hospital Langobardenstr. 122 1220 Wien Vienna / Austria Tel. +43 (1) 28802 2731 Fax. +43 (1) 28802 2728 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Jan 12 05:20:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16PFeX-0005Si-00; Sat, 12 Jan 2002 05:20:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 927541112F3; Sat, 12 Jan 2002 05:07:31 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA22378 for linac-eng-list; Fri, 11 Jan 2002 22:00:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web11302.mail.yahoo.com (web11302.mail.yahoo.com [216.136.131.205]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA22374 for ; Fri, 11 Jan 2002 22:00:29 -0600 (CST) Message-ID: <20020112040028.60201.qmail@web11302.mail.yahoo.com> Received: from [24.217.12.105] by web11302.mail.yahoo.com via HTTP; Fri, 11 Jan 2002 20:00:28 PST Date: Fri, 11 Jan 2002 20:00:28 -0800 (PST) From: Joe Czarnecki Subject: Saturday Work To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Jan 2002 20:00:28 -0800 (PST) From: Joe Czarnecki Subject: Saturday Work To: linac-eng@plato1.aristotle.net Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Dear List: Not only do I work the occasional Saturday, I also work the occasional Sunday also. Sunday is suppose to be God's day of rest, but we are not God even if we perform miracles. LOL. Gotta do what you gotta do. Joe Czarnecki Radiology And Imaging Systems Specialist III BJC HealthCare/Mallinckrodt Institute of Radiology Saint Louis, MO USA __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Jan 12 09:08:25 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16PJDE-0006cI-00; Sat, 12 Jan 2002 09:08:25 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 884D51112F3; Sat, 12 Jan 2002 08:55:32 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id BAA24441 for linac-eng-list; Sat, 12 Jan 2002 01:57:26 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm031.netvigator.com (imsm031.netvigator.com [208.167.231.149]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id BAA24437 for ; Sat, 12 Jan 2002 01:57:25 -0600 (CST) Received: (qmail 14391 invoked from network); 12 Jan 2002 07:57:22 -0000 Received: from pcd438075.netvigator.com (HELO yeung) (203.218.228.75) by imsm031.netvigator.com with SMTP; 12 Jan 2002 07:57:22 -0000 Message-ID: <004f01c19b3e$c9b2cb20$994ffea9@yeung> From: "k yeung" To: Subject: Re: Spectrol Pot 502-344 Date: Sat, 12 Jan 2002 15:57:31 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004C_01C19B81.D7A3B080" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Spectrol Pot 502-344 Date: Sat, 12 Jan 2002 15:57:31 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004C_01C19B81.D7A3B080" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_004C_01C19B81.D7A3B080 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Could anyone advise the source of Varian Clinac's PRO pot (Spectrol = 502-344)? Thanks in advance. Kim Yeung ------=_NextPart_000_004C_01C19B81.D7A3B080 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi Colleagues,
 
Could anyone advise the source of Varian Clinac's = PRO pot=20 (Spectrol 502-344)?
 
Thanks in advance.
 
Kim Yeung
------=_NextPart_000_004C_01C19B81.D7A3B080-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Jan 12 18:11:48 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16PRh6-0000hg-00; Sat, 12 Jan 2002 18:11:48 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 434621112F4; Sat, 12 Jan 2002 17:58:49 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA01788 for linac-eng-list; Sat, 12 Jan 2002 10:55:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NAVGATE.mcg.edu (navgate.mcg.edu [158.93.7.45]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id KAA01784 for ; Sat, 12 Jan 2002 10:55:27 -0600 (CST) Received: from mail.mcg.edu ([158.93.1.5]) by NAVGATE.mcg.edu (NAVGW 2.5.1.6) with SMTP id M2002011211515822975 for ; Sat, 12 Jan 2002 11:51:58 -0500 Received: from THEHUB-Message_Server by mail.mcg.edu with Novell_GroupWise; Sat, 12 Jan 2002 11:54:44 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Sat, 12 Jan 2002 11:54:18 -0500 From: "Michael Nordin" To: Subject: accelerator purchase Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA01785 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 12 Jan 2002 11:54:18 -0500 From: "Michael Nordin" To: Subject: accelerator purchase Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA01785 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We are in the process of interviewing acclerator venders for the purpose of purchasing a 6MV linac. Elekta and Varian have been in with Seimens next up. I am intersested in you'alls experence with Elekta and Seimens as we are a Varian site. Some Questions are: downtime, maintianabilty, parts availibilty and cost, technical support, and QA stability. I would most like to hear from folks who maintian multivender sites. Please e-mail me directly if you fell the public forum of the newsgroup is improper. Thank you for your time and effort as I know this is asking a lot. Mike Nordin Medical College of Georgia 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sun Jan 13 05:16:31 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Pc4M-0003aJ-00; Sun, 13 Jan 2002 05:16:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C56861112F4; Sun, 13 Jan 2002 05:03:22 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id VAA11401 for linac-eng-list; Sat, 12 Jan 2002 21:58:42 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.emediatemail.com (IDENT:root@[211.78.96.22]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA11397 for ; Sat, 12 Jan 2002 21:58:40 -0600 (CST) From: dontwait@mail2.emediatemail.com Date: Sat, 12 Jan 2002 21:59:19 +0800 Message-Id: <200201121359.g0CDxJC27343@mail2.emediatemail.com> To: nhvdmnxwxo@mail2.emediatemail.com Reply-To: dontwait@mail2.emediatemail.com Subject: ADV: Secrets you aren't supposed to know! xwlns Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: dontwait@mail2.emediatemail.com Date: Sat, 12 Jan 2002 21:59:19 +0800 To: nhvdmnxwxo@mail2.emediatemail.com Reply-To: dontwait@mail2.emediatemail.com Subject: ADV: Secrets you aren't supposed to know! xwlns Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Discover how a little known government monopoly can make you money! 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VISIT OUR SITE TODAY http://neo2.neotraffix.com/govseccert/ ************************************** To be removed from future mailings, click below, and send mailto:nomoreplease@neo2.neotraffix.com?subject=autoremove Please allow 72 hours for removal. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sun Jan 13 20:54:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Pqi6-0000Qv-00; Sun, 13 Jan 2002 20:54:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 83F881112F5; Sun, 13 Jan 2002 20:41:10 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA21383 for linac-eng-list; Sun, 13 Jan 2002 13:33:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA21375 for ; Sun, 13 Jan 2002 13:32:58 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA25642 for ; Mon, 14 Jan 2002 08:28:04 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Mon, 14 Jan 2002 08:32:23 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 14 Jan 2002 08:32:05 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 14 Jan 2002 08:31:56 +1300 From: "Dave Pinchin" To: , Subject: Re: Work on Saturday Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA21380 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 14 Jan 2002 08:31:56 +1300 From: "Dave Pinchin" To: , Subject: Re: Work on Saturday Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA21380 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day, Whenever a request comes through for an extra hour on the machine the physics staff (including engineers) always say "Do what's best for the patient. We'll work around you". This rationale has led to a situation where physics (including engineers) regularly do routine work outside normal hours. This suits management fine. Why pay 3 RTs, a receptionist, a nurse and a doctor? to be available for Saturday treatments when they can pay 2 physics (etc). What's best for the patient is a bit of a sliding scale. Have you ever heard "We can't give you the machine for maint this Friday because of the patients". BUT if Friday just happens to be a holiday count the number of patients needing treetment............... There's my grumble for the week. Dave. >>> Büchler Felix 12/01/02 00:22:17 >>> Hi to all, I have just a (maybe stupid) question: Why not have one day PM during the week and treat patients on Saturday ? For the patients it would be better (in medical terms) not to have two consecutive days without irradiation and the staff could rotate with a free day in the week. Looking forwards to your ideas regards Felix Ing. Felix Büchler Institute of Radiation Oncology SMZ Ost / Danube - Hospital Langobardenstr. 122 1220 Wien Vienna / Austria Tel. +43 (1) 28802 2731 Fax. +43 (1) 28802 2728 ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sun Jan 13 21:10:23 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16PqxT-0000VX-00; Sun, 13 Jan 2002 21:10:23 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 88FAF1112F5; Sun, 13 Jan 2002 20:57:03 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA21648 for linac-eng-list; Sun, 13 Jan 2002 13:55:24 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA21643 for ; Sun, 13 Jan 2002 13:55:21 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA27135 for ; Mon, 14 Jan 2002 08:50:30 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Mon, 14 Jan 2002 08:54:49 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 14 Jan 2002 08:54:31 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 14 Jan 2002 08:54:25 +1300 From: "Dave Pinchin" To: , Subject: Re: accelerator purchase Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA21645 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 14 Jan 2002 08:54:25 +1300 From: "Dave Pinchin" To: , Subject: Re: accelerator purchase Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA21645 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day, Another consideration is "who fixes the verification system". It's easy to get into a Very deep hole between two companies both saying "Our stuff is working. It's the other guys gear that doesn't". That's my second grumble and it's still only Monday morning 09:00. :D >>> "Michael Nordin" 13/01/02 05:54:18 >>> We are in the process of interviewing acclerator venders for the purpose of purchasing a 6MV linac. Elekta and Varian have been in with Seimens next up. I am intersested in you'alls experence with Elekta and Seimens as we are a Varian site. Some Questions are: downtime, maintianabilty, parts availibilty and cost, technical support, and QA stability. I would most like to hear from folks who maintian multivender sites. Please e-mail me directly if you fell the public forum of the newsgroup is improper. Thank you for your time and effort as I know this is asking a lot. Mike Nordin Medical College of Georgia ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 02:39:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Pw6M-0001vp-00; Mon, 14 Jan 2002 02:39:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5E2D21112F7; Mon, 14 Jan 2002 02:26:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id TAA26400 for linac-eng-list; Sun, 13 Jan 2002 19:21:28 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from femail38.sdc1.sfba.home.com (femail38.sdc1.sfba.home.com [24.254.60.32]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA26396 for ; Sun, 13 Jan 2002 19:21:26 -0600 (CST) Received: from home.com ([24.4.43.107]) by femail38.sdc1.sfba.home.com (InterMail vM.4.01.03.20 201-229-121-120-20010223) with ESMTP id <20020114012125.LGQU617.femail38.sdc1.sfba.home.com@home.com>; Sun, 13 Jan 2002 17:21:25 -0800 Message-ID: <3C42329A.3CA37CB2@home.com> Date: Sun, 13 Jan 2002 19:21:30 -0600 From: Oscar Hidalgo X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: Dave Pinchin Cc: linac-eng@plato1.aristotle.net, Felix.Buechler@SMZ.magwien.gv.at Subject: Re: Work on Saturday References: Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 13 Jan 2002 19:21:30 -0600 From: Oscar Hidalgo X-Accept-Language: en To: Dave Pinchin Cc: linac-eng@plato1.aristotle.net, Felix.Buechler@SMZ.magwien.gv.at Subject: Re: Work on Saturday Content-Type: text/plain; charset=iso-8859-1 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Two cents worth: It seems to me that many physicists and engineers are at fault because they have been willing to work much more than 40 hours a week, including weekends and holidays, without compensation and often happy to do it. We should always keep in mind that the more hours we put on our salary diminishes proportionally. What's best for the patients is to keep the machines in good condition during treatment hours. If a machine is faulting during treatment hours that's when it should be examined not to wait until nightfall or the weekend. Just an opinion. Oscar Hidalgo hidalgo1@home.com Dave Pinchin wrote: > G'day, > Whenever a request comes through for an extra hour on the machine the physics staff (including engineers) always say "Do what's best for the patient. We'll work around you". > This rationale has led to a situation where physics (including engineers) regularly do routine work outside normal hours. > This suits management fine. Why pay 3 RTs, a receptionist, a nurse and a doctor? to be available for Saturday treatments when they can pay 2 physics (etc). > What's best for the patient is a bit of a sliding scale. > Have you ever heard "We can't give you the machine for maint this Friday because of the patients". BUT if Friday just happens to be a holiday count the number of patients needing treetment............... > > There's my grumble for the week. > > Dave. > > >>> Büchler Felix 12/01/02 00:22:17 >>> > Hi to all, > I have just a (maybe stupid) question: > > Why not have one day PM during the week and treat patients on Saturday ? > > For the patients it would be better (in medical terms) not to have two > consecutive days without irradiation and the staff could rotate with a free > day in the week. > > Looking forwards to your ideas > regards > Felix > > Ing. Felix Büchler > Institute of Radiation Oncology > SMZ Ost / Danube - Hospital > Langobardenstr. 122 > 1220 Wien > Vienna / Austria > Tel. +43 (1) 28802 2731 > Fax. +43 (1) 28802 2728 > > ** This email and attachments have been scanned for content and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 18:07:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QAaQ-0002uD-00; Mon, 14 Jan 2002 18:07:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id A30931112F4; Mon, 14 Jan 2002 17:54:18 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA07583 for linac-eng-list; Mon, 14 Jan 2002 10:40:07 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id KAA07579 for ; Mon, 14 Jan 2002 10:40:06 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA10658; Mon, 14 Jan 2002 10:45:23 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3C4309F3.8F2D0080@scf.sk.ca> Date: Mon, 14 Jan 2002 10:40:19 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Linac-Engineers, Listserver" Subject: Varian 21 EX Exact Couch Content-Type: multipart/mixed; boundary="------------C142BD564DF38EF753825531" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 14 Jan 2002 10:40:19 -0600 From: Chris Barnardo X-Accept-Language: en To: "Linac-Engineers, Listserver" Subject: Varian 21 EX Exact Couch Content-Type: multipart/mixed; boundary="------------C142BD564DF38EF753825531" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------C142BD564DF38EF753825531 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi Group: We have a Varian 21 EX with an Exact Couch built in 2000 s/n 1569. We have a problem reported to us by the Therapists that the when the couch is in Longditudinal freefloat it re-locks when another couch motion is enabled. This is only for Logditudinal, Lateral remains in freefloat. They tell me that the machine has just started doing this (but I am not convinced). We have recently upgraded our console software to ver. 6.1 and had new proms installed in the hand pendents. We don't have the luxury of checking this with another machine, and hope someone could confirm this operation for me. Thanks in advance --------------C142BD564DF38EF753825531 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------C142BD564DF38EF753825531-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 18:43:07 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QB8V-00034T-00; Mon, 14 Jan 2002 18:43:07 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 855AA1112F5; Mon, 14 Jan 2002 18:29:31 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA08460 for linac-eng-list; Mon, 14 Jan 2002 11:08:52 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA08456 for ; Mon, 14 Jan 2002 11:08:51 -0600 (CST) Received: from 159.139.152.113 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Mon, 14 Jan 2002 10:25:08 -0600 Received: by corpexcon02.columbia.net with Internet Mail Service (5.5.2653.19) id ; Mon, 14 Jan 2002 10:22:02 -0600 Message-ID: <87DA8A9ECCCFD211B51E0008C7B15585021BD3AF@ftwex03.ftw.medcity.net> From: Barrett Marc To: "'Linac Engineer's Group'" Subject: Working for the Weekend... Date: Mon, 14 Jan 2002 10:19:12 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Barrett Marc To: "'Linac Engineer's Group'" Subject: Working for the Weekend... Date: Mon, 14 Jan 2002 10:19:12 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Two Cents worth and then some.... I have always operated under the "patient first, what's best for the patient" mentality. This includes the fact that I have to often work hours which are not "9:00 to 5:00" and are outside of what would be considered "normal working hours". To me this is a part of medicine. It is no different than the surgeon getting called to the ER at 3:00am on Sunday or the OB/GYN having to leave his Christmas dinner because Mrs. Jones is delivering 2 weeks early. As workers in the medical profession, we should except the fact that we will be asked to work at odd hours and sometimes required to work odd hours, it's all a part of the practice of medicine. We are, after all, "Medical Physicists and Biomedical Engineers". This is something which I believe a lot of our colleagues forget. We work for the convenience of the patient. Marc R. Barrett Medical Radiation Physicist, Service Coordinator, RSO Rapides Cancer Center 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 20:11:51 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QCWN-0003Tu-00; Mon, 14 Jan 2002 20:11:51 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5DEBD1112F4; Mon, 14 Jan 2002 19:58:14 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA11492 for linac-eng-list; Mon, 14 Jan 2002 12:44:04 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA11488 for ; Mon, 14 Jan 2002 12:44:03 -0600 (CST) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id NAA29351; Mon, 14 Jan 2002 13:39:22 -0500 (EST) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma028666; Mon, 14 Jan 02 13:38:41 -0500 Subject: Y-1 motion To: linac-eng@plato1.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Mon, 14 Jan 2002 12:43:31 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.8 |June 18, 2001) at 01/14/2002 12:43:32 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Y-1 motion To: linac-eng@plato1.aristotle.net Date: Mon, 14 Jan 2002 12:43:31 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.8 |June 18, 2001) at 01/14/2002 12:43:32 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Good day all.... I need some more help..... On our 2100c clinac I can calibrate the Y-1 jaw and when you move it in and out a couple of times the PRO will read 20mm but if you check on graph paper the position may actually be18.8mm and the SPRO may read 20.1 causing a HWFA interlock. When I check error log the fault states Controller Interlock Primary/2nd cha mismatch UJ1 (Y1)..... I have changed PRO readout Pots and SPRO pots Varian Ser Rep also has no ideas.... We have been having tis problem intermittently now for a couple of years... I don't have any problems with Y2 or X1 or X2 ... please help if you have seen similar problem Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 21:07:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QDO5-0003jK-00; Mon, 14 Jan 2002 21:07:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 33BC41112F4; Mon, 14 Jan 2002 20:53:44 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA13004 for linac-eng-list; Mon, 14 Jan 2002 13:38:23 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NAVGATE.mcg.edu (navgate.mcg.edu [158.93.7.45]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id NAA12999 for ; Mon, 14 Jan 2002 13:38:22 -0600 (CST) Received: from mail.mcg.edu ([158.93.1.5]) by NAVGATE.mcg.edu (NAVGW 2.5.1.6) with SMTP id M2002011414331014430 for ; Mon, 14 Jan 2002 14:33:10 -0500 Received: from THEHUB-Message_Server by mail.mcg.edu with Novell_GroupWise; Mon, 14 Jan 2002 14:36:00 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Mon, 14 Jan 2002 14:35:49 -0500 From: "Michael Nordin" To: , Subject: Re: Working for the Weekend... Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA13001 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 14 Jan 2002 14:35:49 -0500 From: "Michael Nordin" To: , Subject: Re: Working for the Weekend... Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA13001 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I agree. The sign on the building says Radiation Therapy not Linac repair. >>> Barrett Marc 01/14/02 11:19AM >>> Two Cents worth and then some.... I have always operated under the "patient first, what's best for the patient" mentality. This includes the fact that I have to often work hours which are not "9:00 to 5:00" and are outside of what would be considered "normal working hours". To me this is a part of medicine. It is no different than the surgeon getting called to the ER at 3:00am on Sunday or the OB/GYN having to leave his Christmas dinner because Mrs. Jones is delivering 2 weeks early. As workers in the medical profession, we should except the fact that we will be asked to work at odd hours and sometimes required to work odd hours, it's all a part of the practice of medicine. We are, after all, "Medical Physicists and Biomedical Engineers". This is something which I believe a lot of our colleagues forget. We work for the convenience of the patient. Marc R. Barrett Medical Radiation Physicist, Service Coordinator, RSO Rapides Cancer Center 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 21:15:17 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QDVl-0003lr-00; Mon, 14 Jan 2002 21:15:17 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD3FA1112F5; Mon, 14 Jan 2002 21:01:39 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA13386 for linac-eng-list; Mon, 14 Jan 2002 13:52:07 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA13382 for ; Mon, 14 Jan 2002 13:52:04 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA26545 for ; Tue, 15 Jan 2002 08:47:00 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Tue, 15 Jan 2002 08:51:26 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 15 Jan 2002 08:51:06 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 15 Jan 2002 08:50:59 +1300 From: "Dave Pinchin" To: , Subject: Re: Y-1 motion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA13383 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 15 Jan 2002 08:50:59 +1300 From: "Dave Pinchin" To: , Subject: Re: Y-1 motion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id NAA13383 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day Larry, Replace the wires from the terminal strip the the pots. We have seen them go intermittent. They are a very flexible wire and I would reccomend the original part but an el-cheepo out of stock wire will last for a week or so until the parts arrive. It's not worth _not_ replacing them. :D >>> 15/01/02 07:43:31 >>> Good day all.... I need some more help..... On our 2100c clinac I can calibrate the Y-1 jaw and when you move it in and out a couple of times the PRO will read 20mm but if you check on graph paper the position may actually be18.8mm and the SPRO may read 20.1 causing a HWFA interlock. When I check error log the fault states Controller Interlock Primary/2nd cha mismatch UJ1 (Y1)..... I have changed PRO readout Pots and SPRO pots Varian Ser Rep also has no ideas.... We have been having tis problem intermittently now for a couple of years... I don't have any problems with Y2 or X1 or X2 ... please help if you have seen similar problem Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 23:07:29 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QFGL-0004I3-00; Mon, 14 Jan 2002 23:07:29 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 126171112F4; Mon, 14 Jan 2002 22:53:45 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA16983 for linac-eng-list; Mon, 14 Jan 2002 15:25:28 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta5.snfc21.pbi.net (mta5.snfc21.pbi.net [206.13.28.241]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA16978 for ; Mon, 14 Jan 2002 15:25:22 -0600 (CST) Received: from REI-DGPC1.pacbell.net ([216.103.85.50]) by mta5.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0GPY0016165ZJP@mta5.snfc21.pbi.net> for linac-eng@plato1.aristotle.net; Mon, 14 Jan 2002 13:25:21 -0800 (PST) Date: Mon, 14 Jan 2002 13:25:27 -0800 From: Domenic Greco Subject: Re: Working for the Weekend... In-reply-to: X-Sender: dgreco@postoffice.pacbell.net To: Michael Nordin , Marc.Barrett@HCAHealthcare.com, linac-eng@plato1.aristotle.net Message-id: <5.1.0.14.0.20020114124551.00e58cec@postoffice.pacbell.net> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 14 Jan 2002 13:25:27 -0800 From: Domenic Greco Subject: Re: Working for the Weekend... In-reply-to: X-Sender: dgreco@postoffice.pacbell.net To: Michael Nordin , Marc.Barrett@HCAHealthcare.com, linac-eng@plato1.aristotle.net Content-type: text/plain; charset=us-ascii; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I also agree that the 'patient' is our ultimate customer and the primary person whom we serve. I really don't think a lot of our colleagues forget that fact, But many are in the position where they are the one responding to the morning emergency call, they are the one available during the day in case something happens, and they are the one performing maintenance in the evening. This will eventually result in burn out from time to time not to mention the burdens placed on the their family and social life. Patients DO need to be treated, but Physicists and Service Engineers should also have a voice to schedule in their maintenance needs in when required. By blocking out a chunk of time and scheduling in maintenance, Both the patient AND the caretakers of the equipment are served. .....(now back to reality) At 02:35 PM 1/14/2002 -0500, Michael Nordin wrote: >I agree. The sign on the building says Radiation Therapy not Linac repair. > > >>> Barrett Marc 01/14/02 11:19AM >>> >Two Cents worth and then some.... > >I have always operated under the "patient first, what's best for the >patient" mentality. This includes the fact that I have to often work hours >which are not "9:00 to 5:00" and are outside of what would be considered >"normal working hours". To me this is a part of medicine. It is no >different than the surgeon getting called to the ER at 3:00am on Sunday or >the OB/GYN having to leave his Christmas dinner because Mrs. Jones is >delivering 2 weeks early. >As workers in the medical profession, we should except the fact that we will >be asked to work at odd hours and sometimes required to work odd hours, it's >all a part of the practice of medicine. We are, after all, "Medical >Physicists and Biomedical Engineers". This is something which I believe a >lot of our colleagues forget. >We work for the convenience of the patient. > >Marc R. Barrett >Medical Radiation Physicist, Service Coordinator, RSO >Rapides Cancer Center 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 23:13:35 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QFMF-0004KP-00; Mon, 14 Jan 2002 23:13:35 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3FBA91112F4; Mon, 14 Jan 2002 22:59:56 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id PAA18217 for linac-eng-list; Mon, 14 Jan 2002 15:39:17 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pollux.it.luc.edu (pollux.it.luc.edu [147.126.59.91]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA18213 for ; Mon, 14 Jan 2002 15:39:15 -0600 (CST) Received: from wpo.it.luc.edu (wpo.it.luc.edu [147.126.59.93]) by pollux.it.luc.edu (Postfix) with SMTP id 073582A3C8 for ; Mon, 14 Jan 2002 15:38:39 -0600 (CST) Received: from GWIA3-Message_Server by wpo.it.luc.edu with Novell_GroupWise; Mon, 14 Jan 2002 15:35:12 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Mon, 14 Jan 2002 15:24:32 -0600 From: "Richard Gerler" To: , Subject: Re: Y-1 motion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id PAA18214 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 14 Jan 2002 15:24:32 -0600 From: "Richard Gerler" To: , Subject: Re: Y-1 motion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id PAA18214 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I have seen a noisy A/D chip on the motor interface pcb. in the Signal Cond. cardrack cause this same problem. One sympton was that the digital readout for that position on the Clinac monitor would jump around slightly. Richard Gerler Loyola University Medical Center Imaging Engineering 2160 S. First Ave Maywood, IL 60153 PH:(708) 216-9148 PG:(708) 216-8777 #17094 >>> 01/14/02 12:43PM >>> Good day all.... I need some more help..... On our 2100c clinac I can calibrate the Y-1 jaw and when you move it in and out a couple of times the PRO will read 20mm but if you check on graph paper the position may actually be18.8mm and the SPRO may read 20.1 causing a HWFA interlock. When I check error log the fault states Controller Interlock Primary/2nd cha mismatch UJ1 (Y1)..... I have changed PRO readout Pots and SPRO pots Varian Ser Rep also has no ideas.... We have been having tis problem intermittently now for a couple of years... I don't have any problems with Y2 or X1 or X2 ... please help if you have seen similar problem Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 14 23:35:48 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QFhj-0004Px-00; Mon, 14 Jan 2002 23:35:47 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 23F911112F4; Mon, 14 Jan 2002 23:22:08 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA19212 for linac-eng-list; Mon, 14 Jan 2002 16:13:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailm2.adhb.govt.nz ([203.97.243.106]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id QAA19207 for ; Mon, 14 Jan 2002 16:13:28 -0600 (CST) Received: from exchange02.ahsl.co.nz (not verified[10.30.2.23]) by mailm2.adhb.govt.nz with MailMarshal (4,0,6,0) id ; Tue, 15 Jan 2002 11:11:55 +1300 Received: by EXCHANGE02 with Internet Mail Service (5.5.2653.19) id ; Tue, 15 Jan 2002 11:03:59 +1300 Message-ID: From: Craig Pearce To: "'linac eng'" Subject: Hardware fault on CL2100CD #548 Date: Tue, 15 Jan 2002 11:13:53 +1300 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Craig Pearce To: "'linac eng'" Subject: Hardware fault on CL2100CD #548 Date: Tue, 15 Jan 2002 11:13:53 +1300 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello Everyone We are getting an intermittent hardware fault that happens a couple times in quick succession very couple of weeks. The log shows CPU Beam on/off failed 01 ON What are the thoughts of the collective wisdom on where we should start looking on this one? Regards Craig Pearce Technical Officer Clinical Engineering Auckland District Health Board Building 13 Auckland Hospital Auckland New Zealand Ph 649 3074949 ext. 6213 Fax 649 3078948 craigp@adhb.govt.nz 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 00:19:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QGNa-0004bq-00; Tue, 15 Jan 2002 00:19:02 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B88F51112F4; Tue, 15 Jan 2002 00:05:22 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA20974 for linac-eng-list; Mon, 14 Jan 2002 16:55:50 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gondor.dpa.act.gov.au (gondor.dpa.act.gov.au [136.153.2.50]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA20970 for ; Mon, 14 Jan 2002 16:55:48 -0600 (CST) Received: (from smap@localhost) by gondor.dpa.act.gov.au (8.11.1/8.11.1) id g0EMtht16717 for ; Tue, 15 Jan 2002 09:55:43 +1100 (EST) Received: from unknown(10.226.2.7) by gondor via smap (V5.5) id xma016653; Tue, 15 Jan 02 09:55:37 +1100 Received: by cal007.dpa.act.gov.au with Internet Mail Service (5.5.2653.19) id ; Tue, 15 Jan 2002 09:55:36 +1000 Message-ID: From: "Caunt, Peter" To: "'Linac-Eng'" Subject: Weekend Work Date: Tue, 15 Jan 2002 09:55:25 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Caunt, Peter" To: "'Linac-Eng'" Subject: Weekend Work Date: Tue, 15 Jan 2002 09:55:25 +1000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Listmembers, Whoa..... steady on Marc, one of the best "work to live/live to work" arguments that I have seen for some time. Its an interesting statement when comparing those at the top of the medical hierarchy, the Surgeons and OB/GY, with those at the bottom working in the "engine room" supporting medical equipment. With over two decades working within the "Biomedical" field the last decade in Radiotherapy, I can safely say that engineering staff are not considered part of the medical profession. For example the current Nation Inquiry into Australian Radiotherapy Services specifically excludes engineering support staff on issues as pay, conditions, training, education and career opportunities, (though physics and therapy are included), a good indication as to how the politics within the medical profession consider engineering support. And as for "Biomedical Engineers", well this is a "certified" title and most of the ones I know head Biomed departments and manage multi-million dollar budgets. Lets not perpetuate the "officers and men" myth within Radiotherapy. Anyone who has actively participated in this industry for several years is serious about their contribution to the betterment of the community. However the Health industry continually mismatches the resources of the few to the needs of the many. With industrial tools such as shift work, overtime penalties and designated working hours, the requirement for staff to committ additional hours should be by their agreement with management. People are entitled to a life outside of work irrespective of the industry they work in, and control over ones personal life is the cornerstone of a civilised society. I hope this personal point of view helps to explore both sides of the arguement. As our population ages increased demand will be placed upon all health services, how we balance our personal and work life in this industry is up to the individual. Lets look at options not rheteric. Peter Caunt Radiation Oncology The Canberra Hospital Canberra, Australia. >I have always operated under the "patient first, what's best for the >patient" mentality. This includes the fact that I have to often work hours >which are not "9:00 to 5:00" and are outside of what would be considered >"normal working hours". To me this is a part of medicine. It is no >different than the surgeon getting called to the ER at 3:00am on Sunday or >the OB/GYN having to leave his Christmas dinner because Mrs. Jones is >delivering 2 weeks early. >As workers in the medical profession, we should except the fact that we will >be asked to work at odd hours and sometimes required to work odd hours, it's >all a part of the practice of medicine. We are, after all, "Medical >Physicists and Biomedical Engineers". This is something which I believe a >lot of our colleagues forget. >We work for the convenience of the patient. >Marc R. Barrett >Medical Radiation Physicist, Service Coordinator, RSO >Rapides Cancer Center 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 00:44:05 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QGlp-0004iZ-00; Tue, 15 Jan 2002 00:44:05 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F2D711112F4; Tue, 15 Jan 2002 00:30:24 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id RAA21795 for linac-eng-list; Mon, 14 Jan 2002 17:22:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id RAA21791 for ; Mon, 14 Jan 2002 17:22:11 -0600 (CST) Received: (qmail 8122 invoked from network); 14 Jan 2002 23:21:35 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 14 Jan 2002 23:21:35 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Mon, 14 Jan 2002 15:20:17 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA005CC26BD@SERVER20> From: Randy Wick To: "'lsullivan@bhcpns.org'" , linac-eng@plato1.aristotle.net Subject: RE: Y-1 motion Date: Mon, 14 Jan 2002 15:21:47 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy Wick To: "'lsullivan@bhcpns.org'" , linac-eng@plato1.aristotle.net Subject: RE: Y-1 motion Date: Mon, 14 Jan 2002 15:21:47 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Another possibility is the worm gear that drives the motor. To test this, rotate the collimator so that the Y jaws are perpendicular to the ground at a gantry angle of 90deg. Check the Y readouts, then rotate to gantry 270. If the readout changes, then the jaw is slipping. Ours would move around 2mm, which is just enough to cause problems with HWFA. To correct this is hard to explain, but there is a gear box on one side of each jaw which has a small plate you can remove to add grease. I am writing from memory, but open this plate to see how the system works. There is a "pin" (about 1/4", fairly large) which is visible from the top and applies pressure to the worm gear. It is held in place by a set screw, loosen this and apply pressure to the top of the pin, then tighten the set screw to remove the slack. It is not easy, but we did have a couple of 2100's as well as a 600C that were fixed by this method. I can't remember if the set screw is visible from outside the gear box. I think it is. I only mention the removable access plate so that you can look inside and see how the system works. ----------------------------------- Randy Wick Radiotherapy Service Fraser Valley Cancer Centre Surrey, BC Canada rwick@bccancer.bc.ca > -----Original Message----- > From: lsullivan@bhcpns.org [mailto:lsullivan@bhcpns.org] > Sent: Monday, January 14, 2002 10:44 AM > To: linac-eng@plato1.aristotle.net > Subject: Y-1 motion > > > Good day all.... I need some more help..... On our 2100c clinac I can > calibrate the Y-1 jaw and when you move it in and out a > couple of times > the PRO will read 20mm but if you check on graph paper the > position may > actually be18.8mm and the SPRO may read 20.1 causing a HWFA interlock. > When I check error log the fault states > Controller Interlock Primary/2nd cha mismatch UJ1 (Y1)..... I have > changed PRO readout Pots and SPRO pots > Varian Ser Rep also has no ideas.... We have been having tis problem > intermittently now for a couple of years... I don't > have any problems > with Y2 or X1 or X2 ... please help if you have seen similar problem > > > Thanks in advance > Larry Sullivan > Baptist Hospital > Pensacola Fl > 850-469-2200 > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 00:44:06 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QGlp-0004ic-00; Tue, 15 Jan 2002 00:44:06 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1982D1112F5; Tue, 15 Jan 2002 00:30:24 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id RAA21755 for linac-eng-list; Mon, 14 Jan 2002 17:20:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA21751 for ; Mon, 14 Jan 2002 17:20:36 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id RAA01330; Mon, 14 Jan 2002 17:16:40 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B41.007FD62B ; Mon, 14 Jan 2002 17:16:18 -0600 X-Lotus-FromDomain: MDACC To: Craig Pearce Cc: "'linac eng'" Message-ID: <86256B41.007FD54C.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 14 Jan 2002 17:15:50 -0600 Subject: Re: Hardware fault on CL2100CD #548 Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Craig Pearce Cc: "'linac eng'" Date: Mon, 14 Jan 2002 17:15:50 -0600 Subject: Re: Hardware fault on CL2100CD #548 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I've seen this at beam off, and at beam on, with any code between 01 and 03. Try replacing the control processor PCB in the STD Bus cardrack. This has worked for me on three machines. Tim Waldron Craig Pearce on 01/14/2002 04:13:53 PM To: "'linac eng'" cc: (bcc: Timothy J. Waldron/MDACC) Subject: Hardware fault on CL2100CD #548 Hello Everyone We are getting an intermittent hardware fault that happens a couple times in quick succession very couple of weeks. The log shows CPU Beam on/off failed 01 ON What are the thoughts of the collective wisdom on where we should start looking on this one? Regards Craig Pearce Technical Officer Clinical Engineering Auckland District Health Board Building 13 Auckland Hospital Auckland New Zealand Ph 649 3074949 ext. 6213 Fax 649 3078948 craigp@adhb.govt.nz 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 01:21:58 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QHMT-0004sc-00; Tue, 15 Jan 2002 01:21:58 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C0AD21112F5; Tue, 15 Jan 2002 01:08:16 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id RAA22666 for linac-eng-list; Mon, 14 Jan 2002 17:54:22 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc53.attbi.com (rwcrmhc53.attbi.com [204.127.198.39]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA22662 for ; Mon, 14 Jan 2002 17:54:21 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc53.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020114235350.YXQR10199.rwcrmhc53.attbi.com@c1784162a>; Mon, 14 Jan 2002 23:53:50 +0000 Message-ID: <002301c19d57$42602f80$99ddf70c@mshome.net> From: "Rich Kimball" To: "Craig Pearce" , "'linac eng'" References: Subject: Re: Hardware fault on CL2100CD #548 Date: Mon, 14 Jan 2002 17:57:43 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Craig Pearce" , "'linac eng'" Subject: Re: Hardware fault on CL2100CD #548 Date: Mon, 14 Jan 2002 17:57:43 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk First thing I would check/change is the contact blocks on the Beam Enable keyswitch. Next I would check the secondary door interlock and the relay it supplies in the modulator. Happy trails, Rich Kimball Acceletronics Midwest, Inc. ----- Original Message ----- From: "Craig Pearce" To: "'linac eng'" Sent: Monday, January 14, 2002 4:13 PM Subject: Hardware fault on CL2100CD #548 > Hello Everyone > > We are getting an intermittent hardware fault that happens a couple times in > quick succession very couple of weeks. > > The log shows > > CPU Beam on/off failed 01 ON > > What are the thoughts of the collective wisdom on where we should start > looking on this one? > > Regards > > Craig Pearce > Technical Officer > Clinical Engineering > Auckland District Health Board > Building 13 > Auckland Hospital > Auckland > New Zealand > Ph 649 3074949 ext. 6213 > Fax 649 3078948 > craigp@adhb.govt.nz > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 07:14:37 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QMrl-0006at-00; Tue, 15 Jan 2002 07:14:37 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F1121112F4; Tue, 15 Jan 2002 07:00:51 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id XAA28256 for linac-eng-list; Mon, 14 Jan 2002 23:56:53 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bleys.tpgi.com.au (bleys.tpgi.com.au [203.12.160.38]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA28252 for ; Mon, 14 Jan 2002 23:56:50 -0600 (CST) Received: (from smtpd@localhost) by bleys.tpgi.com.au (8.11.2/8.11.2) id g0F5umg20466 for ; Tue, 15 Jan 2002 16:56:48 +1100 Received: from syd-56K-188.tpgi.com.au(203.58.12.188), claiming to be "tpg.com.au" via SMTP by bleys.tpgi.com.au, id smtpdNHXW9t; Tue Jan 15 16:56:35 2002 Message-ID: <3C43C478.856D77D9@tpg.com.au> Date: Tue, 15 Jan 2002 16:56:08 +1100 From: Alicja&Marek X-Mailer: Mozilla 4.74 [en] (Win98; U) X-Accept-Language: en,pl MIME-Version: 1.0 To: linac-eng@plato1.aristotle.net Subject: Re: Work on Saturday References: <3C42329A.3CA37CB2@home.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 15 Jan 2002 16:56:08 +1100 From: Alicja&Marek X-Accept-Language: en,pl To: linac-eng@plato1.aristotle.net Subject: Re: Work on Saturday Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hear, hear ! Marek Radziszewski Service Engineer Oscar Hidalgo wrote: > > Two cents worth: > It seems to me that many physicists and engineers are at fault because they have been willing to work much more than 40 hours a week, including weekends and holidays, without compensation and often happy to > do it. We should always keep in mind that the more hours we put on our salary diminishes proportionally. What's best for the patients is to keep the machines in good condition during treatment hours. If a > machine is faulting during treatment hours that's when it should be examined not to wait until nightfall or the weekend. Just an opinion. > > Oscar Hidalgo > hidalgo1@home.com > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 10:51:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QQFs-0000KT-00; Tue, 15 Jan 2002 10:51:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 933B71112F1; Tue, 15 Jan 2002 10:37:56 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id DAA00697 for linac-eng-list; Tue, 15 Jan 2002 03:30:19 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from test-webgate.gstt.sthames.nhs.uk (hide227.nhs.uk [195.107.47.227]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA00693 for ; Tue, 15 Jan 2002 03:30:18 -0600 (CST) From: Richard.Newby@gstt.sthames.nhs.uk Received: from ex1.gstt.sthames.nhs.uk (unverified) by test-webgate.gstt.sthames.nhs.uk (Content Technologies SMTPRS 4.2.1) with ESMTP id for ; Tue, 15 Jan 2002 09:33:37 +0000 Received: by ex1.gstt.sthames.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Tue, 15 Jan 2002 09:30:07 -0000 Message-ID: <93BFD1F388FBD511BDCE00508BBD1F40129223@ex4.gstt.sthames.nhs.uk> To: linac-eng@plato1.aristotle.net Subject: RE: Working for the Weekend... Date: Tue, 15 Jan 2002 09:28:23 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Richard.Newby@gstt.sthames.nhs.uk To: linac-eng@plato1.aristotle.net Subject: RE: Working for the Weekend... Date: Tue, 15 Jan 2002 09:28:23 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Some people work to different rules to us. Pin this to your machine - it legitimises current practice...... What to do when your machine breaks down 1. Do not call for service until everyone has had time to form an opinion as to what is wrong. Give each member of staff the opportunity to correct the problem. Whenever possible. ALL controls and adjusting screws should be turned. 2. After several days, when the machine malfunction has become a major emergency, place an URGENT call for service. Fridays are best, but any time after 4pm is ok. 3. Alert all personnel so that each can give their version of what is wrong. Suggestions on how to fix the machine will be welcomed by the engineer. 4. Hide the service history log that is found inside the machine. Make several references about the man who was here for the same problem last week. 5. Have at least eight graduate engineers present to ask highly technical questions which are in no way related to the problem. 6. The minute the engineer arrives, ask what caused the delay. Make it clear that you expected him two days ago. Before he can answer, ask him when the machine will be back in service. 7. The machine should be as dirty and greasy as possible. A mixture of oil and pencil sharpening shavings works well. If the machine has electrical components, add staples and paper clips. 8. Assign a member of staff to supervise the repair, someone who has never seen or used the machine is preferable. Bad breath is a plus here and scores bonus points. 9. Ask again when the machine will be ready. Good timing is essential and when the machine is in 800 pieces and spread all over the floor will be just grand. 10. Be sure the machine is in a narrow passage with plenty of people passing by, each making a comment about the time the repair is taking. The lighting should be as low as possible, good engineers can work blindfold. 11. Ask if the machine is ready yet. If the engineer is looking at the schematic diagram, ask if he knows what he is doing. It doesn't hurt to mention that you repaired the toaster last week without the aid of a schematic diagram. 12. When the repair is completed, tell him what a swell job he did. Say it should be a swell job as it took long enough. 13. Try to get the engineer to lower the bill. They make too much money anyway. 14. After he has gone call his supervisor and say the machine is worse now than before. Follow up with a letter with copies to the Head Office. FOLLOW THESE RULES ON EVERY CALL NO MATTER HOW SMALL THE PROBLEM -----Original Message----- From: Domenic Greco [mailto:dgreco@pacbell.net] Sent: 14 January 2002 21:25 To: Michael Nordin; Marc.Barrett@HCAHealthcare.com; linac-eng@plato1.aristotle.net Subject: Re: Working for the Weekend... I also agree that the 'patient' is our ultimate customer and the primary person whom we serve. I really don't think a lot of our colleagues forget that fact, But many are in the position where they are the one responding to the morning emergency call, they are the one available during the day in case something happens, and they are the one performing maintenance in the evening. This will eventually result in burn out from time to time not to mention the burdens placed on the their family and social life. Patients DO need to be treated, but Physicists and Service Engineers should also have a voice to schedule in their maintenance needs in when required. By blocking out a chunk of time and scheduling in maintenance, Both the patient AND the caretakers of the equipment are served. .....(now back to reality) At 02:35 PM 1/14/2002 -0500, Michael Nordin wrote: >I agree. The sign on the building says Radiation Therapy not Linac repair. > > >>> Barrett Marc 01/14/02 11:19AM >>> >Two Cents worth and then some.... > >I have always operated under the "patient first, what's best for the >patient" mentality. This includes the fact that I have to often work hours >which are not "9:00 to 5:00" and are outside of what would be considered >"normal working hours". To me this is a part of medicine. It is no >different than the surgeon getting called to the ER at 3:00am on Sunday or >the OB/GYN having to leave his Christmas dinner because Mrs. Jones is >delivering 2 weeks early. >As workers in the medical profession, we should except the fact that we will >be asked to work at odd hours and sometimes required to work odd hours, it's >all a part of the practice of medicine. We are, after all, "Medical >Physicists and Biomedical Engineers". This is something which I believe a >lot of our colleagues forget. >We work for the convenience of the patient. > >Marc R. Barrett >Medical Radiation Physicist, Service Coordinator, RSO >Rapides Cancer Center ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 14:21:46 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QTX8-0002xF-00; Tue, 15 Jan 2002 14:21:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 674C71112F1; Tue, 15 Jan 2002 14:07:55 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA02983 for linac-eng-list; Tue, 15 Jan 2002 07:04:33 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02979 for ; Tue, 15 Jan 2002 07:04:31 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Tue, 15 Jan 2002 14:03:59 +0100 Message-ID: <9D894AB8D748D3118A1800508B073AE6CCB5C8@CLV4> From: Larsson Christer MFT CLV To: "'linac-eng@plato1.aristotle.net'" Subject: VB: Hardware fault on CL2100CD #548 Date: Tue, 15 Jan 2002 14:03:49 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA02980 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Larsson Christer MFT CLV To: "'linac-eng@plato1.aristotle.net'" Subject: VB: Hardware fault on CL2100CD #548 Date: Tue, 15 Jan 2002 14:03:49 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA02980 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk > -----Ursprungligt meddelande----- > Från: Larsson Christer MFT CLV > Skickat: den 15 januari 2002 13:54 > Till: 'Craig Pearce' > Ämne: SV: Hardware fault on CL2100CD #548 > > Hi Craig, > we had the same problem here with a 23EX, S/N 319, and what finally solved > the problem was a change of Timer Interface Board in the CEC. > Good Luck! > Christer Larsson > Vaxjo > Sweden > > -----Ursprungligt meddelande----- > Från: Craig Pearce [SMTP:CraigP@adhb.govt.nz] > Skickat: den 14 januari 2002 23:14 > Till: 'linac eng' > Ämne: Hardware fault on CL2100CD #548 > > Hello Everyone > > We are getting an intermittent hardware fault that happens a couple times > in > quick succession very couple of weeks. > > The log shows > > CPU Beam on/off failed 01 ON > > What are the thoughts of the collective wisdom on where we should start > looking on this one? > > Regards > > Craig Pearce > Technical Officer > Clinical Engineering > Auckland District Health Board > Building 13 > Auckland Hospital > Auckland > New Zealand > Ph 649 3074949 ext. 6213 > Fax 649 3078948 > craigp@adhb.govt.nz 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 16:09:05 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QVCy-00046h-00; Tue, 15 Jan 2002 16:09:04 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4B1571112F1; Tue, 15 Jan 2002 15:55:12 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA04901 for linac-eng-list; Tue, 15 Jan 2002 08:47:39 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209] (may be forged)) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA04897 for ; Tue, 15 Jan 2002 08:47:37 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Tue, 15 Jan 2002 09:47:23 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C454@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato1.aristotle.net'" Subject: X-ray for sale Date: Tue, 15 Jan 2002 09:47:12 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato1.aristotle.net'" Subject: X-ray for sale Date: Tue, 15 Jan 2002 09:47:12 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk If anyone may be interested we have an old MPX-80 X-ray system for sale. Please contact Bill Hughes at The Regional Cancer Center. (814) 838-0408 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 19:54:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QYig-00061b-00; Tue, 15 Jan 2002 19:54:02 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 437A81112F1; Tue, 15 Jan 2002 19:40:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA08798 for linac-eng-list; Tue, 15 Jan 2002 12:21:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.wfubmc.edu (mailadmin.wfubmc.edu [152.11.200.6]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA08794 for ; Tue, 15 Jan 2002 12:21:11 -0600 (CST) Received: from wfubmc.edu ([152.11.16.97]) by mail.wfubmc.edu (Netscape Messaging Server 3.61) with ESMTP id AAA3412; Tue, 15 Jan 2002 13:20:31 -0500 Message-ID: <3C447375.AAB93AA7@wfubmc.edu> Date: Tue, 15 Jan 2002 13:22:45 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Mailer: Mozilla 4.6 [en]C-CCK-MCD (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: Richard.Newby@gstt.sthames.nhs.uk Cc: linac-eng@plato1.aristotle.net Subject: Re: Working for the Weekend... References: <93BFD1F388FBD511BDCE00508BBD1F40129223@ex4.gstt.sthames.nhs.uk> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 15 Jan 2002 13:22:45 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Accept-Language: en To: Richard.Newby@gstt.sthames.nhs.uk Cc: linac-eng@plato1.aristotle.net Subject: Re: Working for the Weekend... Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Richard, thanks for the much needed humor at this point in the day. Tim Richard.Newby@gstt.sthames.nhs.uk wrote: > Some people work to different rules to us. Pin this to your machine - it > legitimises current practice...... snipped..... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 20:50:01 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QZaq-0006Hj-00; Tue, 15 Jan 2002 20:50:00 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F249F1112F3; Tue, 15 Jan 2002 20:36:04 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA10138 for linac-eng-list; Tue, 15 Jan 2002 13:28:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu (global16-24.pix.hs.uab.edu [164.111.16.24]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA10134 for ; Tue, 15 Jan 2002 13:28:31 -0600 (CST) Received: from gw5.uabmc.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA4E06 for ; Tue, 15 Jan 2002 13:25:29 -0600 Received: from INET-MTA by gw5.uabmc.edu with Novell_GroupWise; Tue, 15 Jan 2002 13:27:43 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Tue, 15 Jan 2002 13:27:32 -0600 From: "Stephen Jordan" To: , , , Subject: Re: Working for the Weekend... Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 15 Jan 2002 13:27:32 -0600 From: "Stephen Jordan" To: , , , Subject: Re: Working for the Weekend... Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk My sentiments also...nicely stated. Steve Jordan UAB Rad Phy >>> Domenic Greco 01/14/02 03:25PM >>> I also agree that the 'patient' is our ultimate customer and the primary person whom we serve. I really don't think a lot of our colleagues forget that fact, But many are in the position where they are the one responding to the morning emergency call, they are the one available during the day in case something happens, and they are the one performing maintenance in the evening. This will eventually result in burn out from time to time not to mention the burdens placed on the their family and social life. Patients DO need to be treated, but Physicists and Service Engineers should also have a voice to schedule in their maintenance needs in when required. By blocking out a chunk of time and scheduling in maintenance, Both the patient AND the caretakers of the equipment are served. .....(now back to reality) At 02:35 PM 1/14/2002 -0500, Michael Nordin wrote: >I agree. The sign on the building says Radiation Therapy not Linac repair. > > >>> Barrett Marc 01/14/02 11:19AM >>> >Two Cents worth and then some.... > >I have always operated under the "patient first, what's best for the >patient" mentality. This includes the fact that I have to often work hours >which are not "9:00 to 5:00" and are outside of what would be considered >"normal working hours". To me this is a part of medicine. It is no >different than the surgeon getting called to the ER at 3:00am on Sunday or >the OB/GYN having to leave his Christmas dinner because Mrs. Jones is >delivering 2 weeks early. >As workers in the medical profession, we should except the fact that we will >be asked to work at odd hours and sometimes required to work odd hours, it's >all a part of the practice of medicine. We are, after all, "Medical >Physicists and Biomedical Engineers". This is something which I believe a >lot of our colleagues forget. >We work for the convenience of the patient. > >Marc R. Barrett >Medical Radiation Physicist, Service Coordinator, RSO >Rapides Cancer Center 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 15 20:50:57 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QZbk-0006IC-00; Tue, 15 Jan 2002 20:50:57 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 28F2B1112F1; Tue, 15 Jan 2002 20:37:01 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA10030 for linac-eng-list; Tue, 15 Jan 2002 13:23:47 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu (global16-24.pix.hs.uab.edu [164.111.16.24]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA10026 for ; Tue, 15 Jan 2002 13:23:45 -0600 (CST) Received: from gw5.uabmc.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA4CF4 for ; Tue, 15 Jan 2002 13:20:40 -0600 Received: from INET-MTA by gw5.uabmc.edu with Novell_GroupWise; Tue, 15 Jan 2002 13:23:02 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Tue, 15 Jan 2002 13:22:51 -0600 From: "Stephen Jordan" To: , , Subject: Re: Y-1 motion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 15 Jan 2002 13:22:51 -0600 From: "Stephen Jordan" To: , , Subject: Re: Y-1 motion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk EXACTLY what happened to my 2100C two months ago....and that's what fixed it. Good call, Dave. >>> "Dave Pinchin" 01/14/02 01:50PM >>> G'day Larry, Replace the wires from the terminal strip the the pots. We have seen them go intermittent. They are a very flexible wire and I would reccomend the original part but an el-cheepo out of stock wire will last for a week or so until the parts arrive. It's not worth _not_ replacing them. :D >>> 15/01/02 07:43:31 >>> Good day all.... I need some more help..... On our 2100c clinac I can calibrate the Y-1 jaw and when you move it in and out a couple of times the PRO will read 20mm but if you check on graph paper the position may actually be18.8mm and the SPRO may read 20.1 causing a HWFA interlock. When I check error log the fault states Controller Interlock Primary/2nd cha mismatch UJ1 (Y1)..... I have changed PRO readout Pots and SPRO pots Varian Ser Rep also has no ideas.... We have been having tis problem intermittently now for a couple of years... I don't have any problems with Y2 or X1 or X2 ... please help if you have seen similar problem Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 16 13:27:08 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Qp9o-000565-00; Wed, 16 Jan 2002 13:27:08 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C14021112F5; Wed, 16 Jan 2002 13:12:59 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id FAA26837 for linac-eng-list; Wed, 16 Jan 2002 05:26:27 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209] (may be forged)) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA26833 for ; Wed, 16 Jan 2002 05:26:23 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Wed, 16 Jan 2002 06:26:28 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C457@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato1.aristotle.net'" Subject: Sale of 1800 Date: Wed, 16 Jan 2002 06:26:27 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato1.aristotle.net'" Subject: Sale of 1800 Date: Wed, 16 Jan 2002 06:26:27 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The Regional Cancer Center of Erie, Pa. is anticipating the removal of our 1800 S/N 125 between the middle and end of June 2002. We are currently treating 50 patients per day on this machine. An annual calibration was just completed. The unit is in good shape for it's age. Any interested parties may contact Bill Hughes at (8140 838-0408 for further information. The physics staff here is headed by Carmen Mesina who may be contacted at (814) 838-0450 Bill Hughes The Regional Cancer Center 2500 West 12th Street Erie, Pa. 16505 Phone (814)838-0408 Fax (814)838-0461 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 16 17:35:25 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Qt25-0000U0-00; Wed, 16 Jan 2002 17:35:25 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4F8E71112F5; Wed, 16 Jan 2002 17:21:12 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA01932 for linac-eng-list; Wed, 16 Jan 2002 10:03:40 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r06.mx.aol.com (imo-r06.mx.aol.com [152.163.225.102]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA01928 for ; Wed, 16 Jan 2002 10:03:38 -0600 (CST) From: GeoffCondliffe@cs.com Received: from GeoffCondliffe@cs.com by imo-r06.mx.aol.com (mail_out_v31_r1.25.) id y.c8.20cf7c30 (2521) for ; Wed, 16 Jan 2002 11:03:02 -0500 (EST) Message-ID: Date: Wed, 16 Jan 2002 11:03:02 EST Subject: Precise Optics Intensifier To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_c8.20cf7c30.2976fe36_boundary" X-Mailer: CompuServe 2000 6.0 for Windows UK sub 80 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GeoffCondliffe@cs.com Date: Wed, 16 Jan 2002 11:03:02 EST Subject: Precise Optics Intensifier To: linac-eng@plato1.aristotle.net Content-Type: multipart/alternative; boundary="part1_c8.20cf7c30.2976fe36_boundary" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --part1_c8.20cf7c30.2976fe36_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Dear All, An excellent Precise Optics HX Dual Field ( 12 / 9 inch ) Image Intensifier, complete with mounting bracket and TV camera 50 Hz system is available for immediate installation on any older generation Simulator. Reply to Geoff Condliffe at Lex-E-Con for further information. Regards, Geoff Condliffe. --part1_c8.20cf7c30.2976fe36_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Dear All,

An excellent Precise Optics  HX Dual Field ( 12 / 9 inch ) Image Intensifier, complete with mounting bracket and TV camera 50 Hz system is available for immediate installation on any older generation Simulator.

Reply to Geoff Condliffe at Lex-E-Con for further information.

Regards,

Geoff Condliffe.

--part1_c8.20cf7c30.2976fe36_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 16 18:25:59 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Qtp1-0000q8-00; Wed, 16 Jan 2002 18:25:59 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C2CB51112F7; Wed, 16 Jan 2002 18:11:46 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA03052 for linac-eng-list; Wed, 16 Jan 2002 11:00:36 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA03048 for ; Wed, 16 Jan 2002 11:00:35 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA13735; Wed, 16 Jan 2002 11:05:53 -0600 Message-Id: <3C45B160.3EAA6DF4@scf.sk.ca> Date: Wed, 16 Jan 2002 10:59:12 -0600 From: Scot Thiesson X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en,pdf Mime-Version: 1.0 To: Linac Eng Subject: RF power meter Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 16 Jan 2002 10:59:12 -0600 From: Scot Thiesson X-Accept-Language: en,pdf To: Linac Eng Subject: RF power meter Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I am looking at pricing out an RF power meter and probe (preferably used) for linac testing. As such I am looking for any feed back from the group as to experiences, preferences etc. Scot Thiesson A.B.C.C. Regina Sask. Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 16 21:33:31 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16QwkU-0001jj-00; Wed, 16 Jan 2002 21:33:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 898801112F5; Wed, 16 Jan 2002 21:19:15 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA06948 for linac-eng-list; Wed, 16 Jan 2002 14:09:36 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm14.texas.rr.com (sm14.texas.rr.com [24.93.35.41]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA06943 for ; Wed, 16 Jan 2002 14:09:34 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm14.texas.rr.com (8.12.0.Beta16/8.12.0.Beta16) with ESMTP id g0GKBLpM032163; Wed, 16 Jan 2002 14:11:27 -0600 From: "Thomas McCausland" To: Scot Thiesson , Linac Eng Date: Wed, 16 Jan 2002 14:09:06 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: RF power meter Reply-To: acceltek@acceltekservice.com Message-ID: <3C458982.5890.1062F36@localhost> In-reply-to: <3C45B160.3EAA6DF4@scf.sk.ca> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: Scot Thiesson , Linac Eng Date: Wed, 16 Jan 2002 14:09:06 -0600 Content-type: text/plain; charset=US-ASCII Subject: Re: RF power meter Reply-To: acceltek@acceltekservice.com In-reply-to: <3C45B160.3EAA6DF4@scf.sk.ca> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Date sent: Wed, 16 Jan 2002 10:59:12 -0600 From: Scot Thiesson To: Linac Eng Subject: RF power meter > I am looking at pricing out an RF power meter and probe (preferably > used) for linac testing. As such I am looking for any feed back from > the group as to experiences, preferences etc. > > Scot Thiesson > A.B.C.C. > Regina Sask. > Canada > > Reply Seperator ------------------------------------------------------------- Tucker Electronics (http://www.tucker.com 800-527-4642) usually has a good assortment of good power meters and pick-up heads. A lot of their stuff is reconditioned and calibrated and can be had for a lot less than new. Their sales people are pretty savy about the equipment too, and can probably steer you on purchasing the proper setup. Be sure you buy the pickup head that matches the power level and frequency you expect to monitor. They are easy to blow up if you hit them with too much power, and are pretty expensive. A few assorted attenuators help in this regard also. Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 17 03:00:28 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16R1qu-0003HO-00; Thu, 17 Jan 2002 03:00:28 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id EB6E31112F5; Thu, 17 Jan 2002 02:46:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id TAA16342 for linac-eng-list; Wed, 16 Jan 2002 19:33:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc51.attbi.com (rwcrmhc51.attbi.com [204.127.198.38]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA16338 for ; Wed, 16 Jan 2002 19:33:31 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc51.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020117013300.FQYR5944.rwcrmhc51.attbi.com@c1784162a>; Thu, 17 Jan 2002 01:33:00 +0000 Message-ID: <000f01c19ef7$31d15e40$99ddf70c@mshome.net> From: "Rich Kimball" To: "Scot Thiesson" , "Linac Eng" References: <3C45B160.3EAA6DF4@scf.sk.ca> Subject: Re: RF power meter Date: Wed, 16 Jan 2002 19:35:06 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Scot Thiesson" , "Linac Eng" Subject: Re: RF power meter Date: Wed, 16 Jan 2002 19:35:06 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Scot, I have a HP 435A but I think I have used a 432A. I can't find my bolometer (head attachment) right now...but if I recall it was capable of 3 GHz @5milliwatts. I know the calibrator output of the meter is rated @ 1.0mW and I had range left. If I can ever find the bolometer I will let you know what part number and specifications it has. Tom is right on the money with his advice. Tucker is a very good source of used RF equipment and advice! Happy trails, Rich Kimball Acceletronics Midwest, Inc. ----- Original Message ----- From: "Scot Thiesson" To: "Linac Eng" Sent: Wednesday, January 16, 2002 10:59 AM Subject: RF power meter > I am looking at pricing out an RF power meter and probe (preferably > used) for linac testing. > As such I am looking for any feed back from the group as to experiences, > preferences etc. > > Scot Thiesson > A.B.C.C. > Regina Sask. > Canada > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 17 03:49:05 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16R2bx-0003UL-00; Thu, 17 Jan 2002 03:49:05 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F4091112F5; Thu, 17 Jan 2002 03:34:44 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id UAA17248 for linac-eng-list; Wed, 16 Jan 2002 20:30:40 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f5.law4.hotmail.com [216.33.149.5]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA17244 for ; Wed, 16 Jan 2002 20:30:39 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 16 Jan 2002 18:30:06 -0800 Received: from 24.136.53.219 by lw4fd.law4.hotmail.msn.com with HTTP; Thu, 17 Jan 2002 02:30:06 GMT X-Originating-IP: [24.136.53.219] From: "David Price" To: linac-eng@plato1.aristotle.net Subject: GP 310 printers for sale Date: Thu, 17 Jan 2002 02:30:06 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 17 Jan 2002 02:30:06.0349 (UTC) FILETIME=[E0344BD0:01C19EFE] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [24.136.53.219] From: "David Price" To: linac-eng@plato1.aristotle.net Subject: GP 310 printers for sale Date: Thu, 17 Jan 2002 02:30:06 +0000 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 17 Jan 2002 02:30:06.0349 (UTC) FILETIME=[E0344BD0:01C19EFE] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We have several working and not so working GP310 printers for an elekta/phillips accelerators,, and several hard to find and outraguosly priced ribbons I think. Any takers, one price takes all, bids please,, so step on up and get one while they last ;) David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" linac-eng@plato1.aristotle.net _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 17 11:50:36 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RA7w-00083L-00; Thu, 17 Jan 2002 11:50:36 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id AA5991112F5; Thu, 17 Jan 2002 11:36:09 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id EAA23735 for linac-eng-list; Thu, 17 Jan 2002 04:18:55 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from vega.tyks.fi (vega.tyks.fi [193.143.200.130]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA23731 for ; Thu, 17 Jan 2002 04:18:53 -0600 (CST) Received: from kusti.tyks.fi (kusti.tyks.fi [193.143.200.110]) by vega.tyks.fi (8.9.1/8.9.1) with ESMTP id MAA22217 for ; Thu, 17 Jan 2002 12:18:00 +0200 (EET) Received: by kusti.tyks.fi with Internet Mail Service (5.5.2653.19) id ; Thu, 17 Jan 2002 12:17:44 +0200 Message-ID: <5B4E93EFB6AAD211809300A0244B670D0244FB2B@kusti.tyks.fi> From: Lindberg Kari To: "'Linac-Engineers'" Subject: Varian 2100 C/D HDTSe mode Date: Thu, 17 Jan 2002 12:17:41 +0200 Importance: high X-Priority: 1 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Lindberg Kari To: "'Linac-Engineers'" Subject: Varian 2100 C/D HDTSe mode Date: Thu, 17 Jan 2002 12:17:41 +0200 Importance: high X-Priority: 1 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Folks, Has someone experienced HDTSe mode on Varian 2100 C/D. We have first time to use it, and the dose rate at HDTS 6e is fixed to 888 MU/min. Has some machine higher dose rate or wha it can be ? Thanks in advance, Kari Lindberg 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 17 11:52:01 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RA9J-00085I-00; Thu, 17 Jan 2002 11:52:01 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id A13511112F5; Thu, 17 Jan 2002 11:37:34 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id EAA23726 for linac-eng-list; Thu, 17 Jan 2002 04:15:51 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA23722 for ; Thu, 17 Jan 2002 04:15:49 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2650.21) id ; Thu, 17 Jan 2002 11:15:44 +0100 Message-ID: To: linac-eng@plato1.aristotle.net Subject: Varian Clinac 2300 CD UDR1/2 Date: Thu, 17 Jan 2002 11:15:42 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato1.aristotle.net Subject: Varian Clinac 2300 CD UDR1/2 Date: Thu, 17 Jan 2002 11:15:42 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Colleagues, We see a weird problem over here at 6x & 18x energies: After a big amount of radiation (>500 MU) the machine stops with UDR1/2 No other faults. No drop of doserate before the fault happens. Everything sounds & looks nice and than: beam off, UDR1/UDR2 Observed Gun I & Gun V: no change We had no time so far for other troubleshooting. Any ideas? Regards, Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 17 18:29:08 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RGLc-0003wv-00; Thu, 17 Jan 2002 18:29:08 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BE9711112F1; Thu, 17 Jan 2002 18:14:36 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA29986 for linac-eng-list; Thu, 17 Jan 2002 10:34:02 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq05.netvigator.com (imsmq05.netvigator.com [208.167.231.41]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id KAA29982 for ; Thu, 17 Jan 2002 10:33:59 -0600 (CST) Received: (qmail 2198 invoked from network); 17 Jan 2002 16:33:53 -0000 Received: from pcd438119.netvigator.com (HELO yeung) (203.218.228.119) by imsmq05.netvigator.com with SMTP; 17 Jan 2002 16:33:53 -0000 Message-ID: <001c01c19f74$c1278560$97e8fea9@yeung> From: "k yeung" To: Subject: Re: Klystron saturation Date: Fri, 18 Jan 2002 00:33:54 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01C19FB7.CF19F160" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Klystron saturation Date: Fri, 18 Jan 2002 00:33:54 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01C19FB7.CF19F160" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0019_01C19FB7.CF19F160 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Could anyone advise whether we need to turn off the PFN servo when doing = klystron saturation? Under what conditions we need to carry out the klystron saturation? Thanks in advance. Kim Yeung=20 ------=_NextPart_000_0019_01C19FB7.CF19F160 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi Colleagues,
 
Could anyone advise whether we need to turn off = the PFN=20 servo when doing klystron saturation?
 
Under what conditions we need to carry out the = klystron=20 saturation?
 
Thanks in advance.
 
Kim Yeung 
------=_NextPart_000_0019_01C19FB7.CF19F160-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 10:51:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RVg9-0002UR-00; Fri, 18 Jan 2002 10:51:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D5E211112F3; Fri, 18 Jan 2002 10:36:32 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id DAA18196 for linac-eng-list; Fri, 18 Jan 2002 03:21:42 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA18192 for ; Fri, 18 Jan 2002 03:21:41 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2650.21) id ; Fri, 18 Jan 2002 10:21:36 +0100 Message-ID: To: Amtsgaarden#c#AAS.AASPOST#c#u00058@aas.nja.dk, linac-eng@plato1.aristotle.net Subject: RE: Vedr.: Varian Clinac 2300 CD UDR1/2 Date: Fri, 18 Jan 2002 10:21:34 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: Amtsgaarden#c#AAS.AASPOST#c#u00058@aas.nja.dk, linac-eng@plato1.aristotle.net Subject: RE: Vedr.: Varian Clinac 2300 CD UDR1/2 Date: Fri, 18 Jan 2002 10:21:34 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk > -----Original Message----- > From: Torben Gade [SMTP:Amtsgaarden#c#AAS.AASPOST#c#u00058@aas.nja.dk] > Sent: Friday, January 18, 2002 8:38 AM > To: CJ.de.Bruijne@walcheren.ziekenhuis.nl > Subject: Vedr.: Varian Clinac 2300 CD UDR1/2 > > Hello > > For me it sound like a bad DQING Thyratron. > > Torben Gade > Aalborg Sygehus Syd > Denmark ---------------------------------------------------------------------------- -- Hello colleagues, It WAS a bad DQing thyratron. Thanks to all who responded. Keesjan 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 16:15:09 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RajV-0006WG-00; Fri, 18 Jan 2002 16:15:09 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 784241112F3; Fri, 18 Jan 2002 16:00:20 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA21430 for linac-eng-list; Fri, 18 Jan 2002 08:42:57 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dcntmta02.spectrum-health.org (dcntmta02.spectrum-health.org [167.73.110.31]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA21426 for ; Fri, 18 Jan 2002 08:42:55 -0600 (CST) From: neville.wiles@spectrum-health.org Received: by dcntmta02.spectrum-health.org with Internet Mail Service (5.5.2653.19) id ; Fri, 18 Jan 2002 09:42:10 -0500 Message-ID: <9BA17E080E6CD51195EE0020484023FF9C777B@dcntmsg03.spectrum-health.org> To: linac-eng@plato1.aristotle.net Subject: Diolase2 lasers Date: Fri, 18 Jan 2002 09:42:34 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org To: linac-eng@plato1.aristotle.net Subject: Diolase2 lasers Date: Fri, 18 Jan 2002 09:42:34 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello, Does anyone out there know of a source for Scanatronics Diolase2 lasers. I need a replacement. Thanks in advance. Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 17:38:57 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Rc2b-0007HR-00; Fri, 18 Jan 2002 17:38:57 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8F5071112F3; Fri, 18 Jan 2002 17:24:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA23735 for linac-eng-list; Fri, 18 Jan 2002 10:14:49 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from viola.lio.se (viola.lio.se [158.126.248.15]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA23731 for ; Fri, 18 Jan 2002 10:14:47 -0600 (CST) Received: from LIO_S_TFS1 (tfs1.lio.se [158.126.88.66]) by viola.lio.se (8.10.0/8.10.1) with SMTP id g0IGFnw19756; Fri, 18 Jan 2002 17:15:49 +0100 (MET) Message-Id: From: Viking Eilert Date: Fri, 18 Jan 2002 17:17:50 +0100 To: linac-eng@plato1.aristotle.net Cc: Neville.Wiles@spectrum-health.org Subject: SV: Diolase2 lasers MIME-version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Mailer: TFS Secure Messaging /320000000/450000208/450800090/450300029/ X-Mailer: Version 4.7 Build 103 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA23732 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Viking Eilert Date: Fri, 18 Jan 2002 17:17:50 +0100 To: linac-eng@plato1.aristotle.net Cc: Neville.Wiles@spectrum-health.org Subject: SV: Diolase2 lasers Content-Type: text/plain; charset=ISO-8859-1 X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA23732 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk IBA Scanditronix medical AB Stålgatan 14 SE-754 50 Uppsala +46-18 180700 tel +46-18 127552 fax Eilert Viking Linköping, Sweden > -----Ursprungligt meddelande----- > Från: owner-linac-eng@plato1.aristotle.net > [SMTP:owner-linac-eng@plato1.aristotle.net] > Skickat: den 18 januari 2002 16:50 > Till: linac-eng@plato1.aristotle.net > Ämne: Diolase2 lasers > > Hello, > > Does anyone out there know of a source for Scanatronics Diolase2 lasers. > I > need a replacement. > > Thanks in advance. > > Neville Wiles > Spectrum Health Grand Rapids, MI > 616) 391-3639 > Neville.Wiles@Spectrum-Health.org 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 18:06:47 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RcTW-0007Pf-00; Fri, 18 Jan 2002 18:06:47 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD0CE1112F3; Fri, 18 Jan 2002 17:51:56 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA25156 for linac-eng-list; Fri, 18 Jan 2002 10:41:36 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from radoncnt1.fccc.edu (radoncnt1.fccc.edu [131.249.10.49]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA25151 for ; Fri, 18 Jan 2002 10:41:29 -0600 (CST) Received: by radoncnt1.fccc.edu with Internet Mail Service (5.5.2653.19) id ; Fri, 18 Jan 2002 11:42:33 -0500 Message-ID: From: "Liounis, Dave" To: "'neville.wiles@spectrum-health.org'" , linac-eng@plato1.aristotle.net Subject: RE: Diolase2 lasers Date: Fri, 18 Jan 2002 11:42:32 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Liounis, Dave" To: "'neville.wiles@spectrum-health.org'" , linac-eng@plato1.aristotle.net Subject: RE: Diolase2 lasers Date: Fri, 18 Jan 2002 11:42:32 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Neville, The supplier for Scanatronix is Scanditronix Wellholffer North America 3150 Stage Post Drive Bartlett Tenn. 38133 1-901-386-2242 Charles James is the Service Manager Good Luck, Dave Liounis Fox Chase Cancer Center Department of Radiation Oncology Engineering 215-728-2997 D_LIOUNIS@FCCC.EDU -----Original Message----- From: neville.wiles@spectrum-health.org [mailto:neville.wiles@spectrum-health.org] Sent: Friday, January 18, 2002 9:43 AM To: linac-eng@plato1.aristotle.net Subject: Diolase2 lasers Hello, Does anyone out there know of a source for Scanatronics Diolase2 lasers. I need a replacement. Thanks in advance. Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 18:49:43 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Rd95-0007bx-00; Fri, 18 Jan 2002 18:49:43 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C90D81112F1; Fri, 18 Jan 2002 18:34:52 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA26205 for linac-eng-list; Fri, 18 Jan 2002 11:14:35 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hhccgwds01.harthosp.org ([199.231.29.249]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA26198 for ; Fri, 18 Jan 2002 11:14:33 -0600 (CST) Received: from HHCC-Message_Server by hhccgwds01.harthosp.org with Novell_GroupWise; Fri, 18 Jan 2002 12:11:08 -0500 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Fri, 18 Jan 2002 12:11:03 -0500 From: "Robert Lindeyer" To: Subject: Optical Disk Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_772A0E3C.E988988B" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 18 Jan 2002 12:11:03 -0500 From: "Robert Lindeyer" To: Subject: Optical Disk Content-Type: multipart/mixed; boundary="=_772A0E3C.E988988B" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_772A0E3C.E988988B Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hello all I want to import into Varian's Vision system, CT scans from a remote GE = scanner (not networked) The scanners output is either hard copy or optical = disk. Have any of you modified a Varian PC (added an optical disk reader) = in order to import CT slices.=20 If so what device did you purchase? Were there any difficulties in the installation, etc.? I appreciate all and any information.=20 Robert Lindeyer Clinical Engineer Radiation Oncology Hartford Hospital --=_772A0E3C.E988988B Content-Type: text/x-vcard Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="Robert Lindeyer.vcf" QkVHSU46VkNBUkQNClZFUlNJT046Mi4xDQpYLUdXVFlQRTpVU0VSDQpGTjpMaW5kZXllciwgUm9i ZXJ0DQpURUw7V09SSzo1NDUtNDM0Ng0KT1JHOjtNZWRpY2FsIFBoeXNpY3MNClRFTDtQUkVGO0ZB WDo1NDUtMTUwMA0KRU1BSUw7V09SSztQUkVGO05HVzpSbGluZGV5DQpOOkxpbmRleWVyO1JvYmVy dA0KVElUTEU6RW5naW5lZXINClgtR1dVU0VSSUQ6UmxpbmRleQ0KRU5EOlZDQVJEDQoNCg== --=_772A0E3C.E988988B-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 20:29:49 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Rehx-00082z-00; Fri, 18 Jan 2002 20:29:49 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B4641112F1; Fri, 18 Jan 2002 20:14:56 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA00480 for linac-eng-list; Fri, 18 Jan 2002 12:56:25 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id MAA00476 for ; Fri, 18 Jan 2002 12:56:24 -0600 (CST) Received: (qmail 29962 invoked from network); 18 Jan 2002 18:55:50 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 18 Jan 2002 18:55:50 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Fri, 18 Jan 2002 10:54:24 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA007A4F57C@SERVER20> From: "Patrick Wong (VICC)" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato1.aristotle.net Subject: RE: Varian Clinac 2300 CD UDR1/2 Date: Fri, 18 Jan 2002 10:56:02 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato1.aristotle.net Subject: RE: Varian Clinac 2300 CD UDR1/2 Date: Fri, 18 Jan 2002 10:56:02 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Keesjan, I had the same problem couple of days ago on 21EX(S/N-1612)with UDR1/2 after 400 to 500mu beam on at 6/18MV,E16 & E20. It work fine on E6,9,12. There is no sign of change in Gun I,V,PFN & Rf drive value. The RF reflect pulse ( rabbit ear) no changed , means still on turned frequency. There is no effect or bring back the dose rate by adjusting AFC in manual. The de-quing pluse has no sign of change in de-Q level. To solve the pronblem I have to change the De-Qing thyratron to bring back the dose rate. The De-Qing thyratron (8503 AF) only had 196 HT hours (usually it should last for at least 400-5000 HT hours). Sorry for the delay to respond your weird problem. I am glad you have solved the problem Regards, Patrick Wong Electronics Technologist Vancouver Island Cancer Center Victoria, British Columbia. Canada. >Hello colleagues, It WAS a bad DQing thyratron. Thanks to all who responded. Keesjan 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 20:35:38 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RenZ-00084I-00; Fri, 18 Jan 2002 20:35:37 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6757B1112F1; Fri, 18 Jan 2002 20:20:44 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA00691 for linac-eng-list; Fri, 18 Jan 2002 13:00:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id NAA00687 for ; Fri, 18 Jan 2002 13:00:10 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato1.aristotle.net [204.233.139.43]) with SMTP; 18 Jan 2002 18:53:32 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Fri, 18 Jan 2002 10:57:23 -0800 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato1.Aristotle.net'" Subject: Very unusual Millenium MLC faults Date: Fri, 18 Jan 2002 10:58:53 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato1.Aristotle.net'" Subject: Very unusual Millenium MLC faults Date: Fri, 18 Jan 2002 10:58:53 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk OK... If anyone out there has seen this I would be surprised but even more surprised if you had a fix for it. 2100cd S/N 453 with a very new Millenium MLC running v6.2 software. If you place the Y jaws at a Y1 of 10 and a Y2 of -9.5 (asymmetrical and closed as in after a dynamic wedge treatment) and then go to the hand pendant or otherwise command a symmetrical alignment of the Y jaws, the two jaws move together, separated by the 5mm closed condition (at ISO) until they reach the midline and then they both open equally to 10x10 or whatever. OK, on my machine one jaw is a very little faster than the other during this off axis to axis shift and bumps the other about 4 or 5 times causing an MLC fault. (Like, why does the MLC even care if they bump?) Actually, they don't bump...they cause the closed microswitch to click over and over. If they only click 2 to 3 times no MLC fault will occur. If you watch HyperTerminal during this occurrence there will be many, many Assert, Clear Upper collimator position faults and 6 or 8 are acceptable but then it will fault requiring a complete initialization of the MLC to clear and continue treating. If I reverse the setup, meaning a Y1 of -9.5 and Y2 of 10 then there will be no problem and if you watch the light field or the jaw faces they actually separate by about 2 mm (at ISO) by the time the two become symmetrical and cause no MLC faults of course. Varian is not sure what is up but has seen the problem and suggested we cause one jaw to slow down by tightening the gear play (as in 1/8 in pin punch in hole thing) and essentially "bind up" the faster motor. It doesn't help. It draws twice the current but goes just as fast. Good motor. I could simply slow down the one motor either with a change of the Feedback resistor on the motor driver pcb (this machine does not have PWM boards) or something but I think the problem is software. I don't think it matters if one jaw is slightly faster causing the click of the switch in my opinion anyway. Well, this is a good one and for now we just tell them to pull away the one jaw first and then go on to the next field setup. Anyone?? You Canadians that have seen it all?? where are you when I need you?? 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 22:40:06 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Rgk2-0000AA-00; Fri, 18 Jan 2002 22:40:06 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 926F11112F1; Fri, 18 Jan 2002 22:25:12 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id PAA12296 for linac-eng-list; Fri, 18 Jan 2002 15:06:53 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id PAA12292 for ; Fri, 18 Jan 2002 15:06:52 -0600 (CST) Received: (qmail 7458 invoked from network); 18 Jan 2002 21:06:16 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 18 Jan 2002 21:06:16 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Fri, 18 Jan 2002 13:04:50 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA007A4F57E@SERVER20> From: "Patrick Wong (VICC)" To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.Aristotle.net'" Subject: RE: Very unusual Millenium MLC faults Date: Fri, 18 Jan 2002 13:06:28 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.Aristotle.net'" Subject: RE: Very unusual Millenium MLC faults Date: Fri, 18 Jan 2002 13:06:28 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Tom, We have four 21EX Millenium MLC with two 80 leaf and two 102 leaf, So far,We didn't have the problem that you had. My suggestion to this problem :- a) remove the two secondary feeback file by type in rm "ffs:secInit2A.txt", rm "ffs:secInit2B.txt" before start initialization the MLC. b)Check the optical film decoder , make sure it is clear of oil and not bending. C)Check the microswitch for the carriage drive, make sure it is not loose. Well, may be you already done these. Good luck & happy hunting. Patrick Wong Electronics Technologist Dept. of Medical Physics Vancouver Island Cancer Center Victoria, British Columbia. Canada. > -----Original Message----- > From: Bush, Thomas M. [mailto:BushT@shmc.org] > Sent: Friday, January 18, 2002 10:59 AM > To: 'Linac-eng@plato1.Aristotle.net' > Subject: Very unusual Millenium MLC faults > > > OK... If anyone out there has seen this I would be surprised > but even more > surprised if you had a fix for it. 2100cd S/N 453 with a > very new Millenium > MLC running v6.2 software. > > If you place the Y jaws at a Y1 of 10 and a Y2 of -9.5 > (asymmetrical and > closed as in after a dynamic wedge treatment) and then go to the hand > pendant or otherwise command a symmetrical alignment of the Y > jaws, the two > jaws move together, separated by the 5mm closed condition (at > ISO) until > they reach the midline and then they both open equally to > 10x10 or whatever. > OK, on my machine one jaw is a very little faster than the > other during this > off axis to axis shift and bumps the other about 4 or 5 times > causing an MLC > fault. (Like, why does the MLC even care if they bump?) > Actually, they > don't bump...they cause the closed microswitch to click over > and over. If > they only click 2 to 3 times no MLC fault will occur. If you watch > HyperTerminal during this occurrence there will be many, many > Assert, Clear > Upper collimator position faults and 6 or 8 are acceptable > but then it will > fault requiring a complete initialization of the MLC to clear > and continue > treating. If I reverse the setup, meaning a Y1 of -9.5 and > Y2 of 10 then > there will be no problem and if you watch the light field or > the jaw faces > they actually separate by about 2 mm (at ISO) by the time the > two become > symmetrical and cause no MLC faults of course. > > Varian is not sure what is up but has seen the problem and > suggested we > cause one jaw to slow down by tightening the gear play (as in > 1/8 in pin > punch in hole thing) and essentially "bind up" the faster > motor. It doesn't > help. It draws twice the current but goes just as fast. > Good motor. I > could simply slow down the one motor either with a change of > the Feedback > resistor on the motor driver pcb (this machine does not have > PWM boards) or > something but I think the problem is software. I don't think > it matters if > one jaw is slightly faster causing the click of the switch in > my opinion > anyway. > > Well, this is a good one and for now we just tell them to > pull away the one > jaw first and then go on to the next field setup. > Anyone?? You Canadians that have seen it all?? where are > you when I need > you?? > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 18 22:40:06 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Rgk2-0000AB-00; Fri, 18 Jan 2002 22:40:06 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id ACD6E1112F3; Fri, 18 Jan 2002 22:25:12 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id PAA11919 for linac-eng-list; Fri, 18 Jan 2002 15:05:57 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.wfubmc.edu (mailadmin.wfubmc.edu [152.11.200.6]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA11907 for ; Fri, 18 Jan 2002 15:05:55 -0600 (CST) Received: from wfubmc.edu ([152.11.16.97]) by mail.wfubmc.edu (Netscape Messaging Server 3.61) with ESMTP id AAA4106; Fri, 18 Jan 2002 16:05:21 -0500 Message-ID: <3C488E80.7B61C293@wfubmc.edu> Date: Fri, 18 Jan 2002 16:07:12 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Mailer: Mozilla 4.6 [en]C-CCK-MCD (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: "Bush, Thomas M." Cc: "'Linac-eng@plato1.Aristotle.net'" Subject: Re: Very unusual Millenium MLC faults References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 18 Jan 2002 16:07:12 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Accept-Language: en To: "Bush, Thomas M." Cc: "'Linac-eng@plato1.Aristotle.net'" Subject: Re: Very unusual Millenium MLC faults Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Tom, funny you should mention this. We just went through the same problem with a unit we are installing and have yet to release to clinical. Look at the Y1 and Y2 collimators when they are racing back to center in symmetrical mode. What are the individual minimum PRO readings? If below 2mm then you will receive a HW controller I/L at the MLC console. To eliminate this problem set the center uswitch to stop at no less than 5mm gap symmetrical. Now just to rub salt in the wound do the same thing with the X collimators, no problem. The SW handles the X collimators below the 2mm by telling you they are at an invalid position, no HW I/L and self-clearing??? As for the collimator motor speed, you're following the right path. Our local rep and I stayed late the other night and made these adjustments. Of course the tendency is to use the fast collimator(Y2) as your reference, wrong again. After several stabs at the mechanical adjustments on Y1(slow one), it was clear it was time to switch reference and slow Y2 down. Results were a nice smooth chase back to center with the roller right on the plate, yet not touching. As for speed, it was noticeable when they were going at different speeds but not enough of a change to notice when they travel at the same speed. One tip, these are mechanical adjustments and will take several tries and patience. I noticed that to slow the collimator speed down by moving the position of the eccentric was sensitive and took several iterations by the local rep to get right. Hope this helps out, have a good weekend. "Bush, Thomas M." wrote: > OK... If anyone out there has seen this I would be surprised but even more > surprised if you had a fix for it. 2100cd S/N 453 with a very new Millenium > MLC running v6.2 software. > > If you place the Y jaws at a Y1 of 10 and a Y2 of -9.5 (asymmetrical and > closed as in after a dynamic wedge treatment) and then go to the hand > pendant or otherwise command a symmetrical alignment of the Y jaws, the two > jaws move together, separated by the 5mm closed condition (at ISO) until > they reach the midline and then they both open equally to 10x10 or whatever. > OK, on my machine one jaw is a very little faster than the other during this > off axis to axis shift and bumps the other about 4 or 5 times causing an MLC > fault. (Like, why does the MLC even care if they bump?) Actually, they > don't bump...they cause the closed microswitch to click over and over. If > they only click 2 to 3 times no MLC fault will occur. If you watch > HyperTerminal during this occurrence there will be many, many Assert, Clear > Upper collimator position faults and 6 or 8 are acceptable but then it will > fault requiring a complete initialization of the MLC to clear and continue > treating. If I reverse the setup, meaning a Y1 of -9.5 and Y2 of 10 then > there will be no problem and if you watch the light field or the jaw faces > they actually separate by about 2 mm (at ISO) by the time the two become > symmetrical and cause no MLC faults of course. > > Varian is not sure what is up but has seen the problem and suggested we > cause one jaw to slow down by tightening the gear play (as in 1/8 in pin > punch in hole thing) and essentially "bind up" the faster motor. It doesn't > help. It draws twice the current but goes just as fast. Good motor. I > could simply slow down the one motor either with a change of the Feedback > resistor on the motor driver pcb (this machine does not have PWM boards) or > something but I think the problem is software. I don't think it matters if > one jaw is slightly faster causing the click of the switch in my opinion > anyway. > > Well, this is a good one and for now we just tell them to pull away the one > jaw first and then go on to the next field setup. > Anyone?? You Canadians that have seen it all?? where are you when I need > you?? 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Jan 19 03:42:07 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16RlSJ-0001WT-00; Sat, 19 Jan 2002 03:42:07 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E691B1112F1; Sat, 19 Jan 2002 03:27:08 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id UAA25694 for linac-eng-list; Fri, 18 Jan 2002 20:19:28 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id UAA25689 for ; Fri, 18 Jan 2002 20:19:26 -0600 (CST) Received: (qmail 8393 invoked from network); 19 Jan 2002 02:17:09 -0000 Received: from unknown (HELO webmailtest) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 19 Jan 2002 02:17:09 -0000 Message-ID: <1992759.1011406532666.JavaMail.root@webmailtest> Date: Sat, 19 Jan 2002 10:15:32 +0800 (HKT) From: Jonathan Chan To: k yeung , Linac-Eng Subject: Re: Klystron saturation Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 19 Jan 2002 10:15:32 +0800 (HKT) From: Jonathan Chan To: k yeung , Linac-Eng Subject: Re: Klystron saturation Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Kim, It is not neccessary to turn off PFN servo, 'cause you are not producing any radiation at this time. It is suggested by Varian that you check or saturate your klystron every 6 months. Note down the PFN program volt. Peak the corresponding energy dose rate. If the new PFN voltage differs more than 0.3 volt, i.e., roughly 3 A KLYI, then you have to saturate your klyston. Rgds, Jonathan Chan Queen Mary Hospital -----Original Message----- From: k yeung Sent: Fri Jan 18 00:33:54 HKT 2002 To: Linac-Eng Cc: Linac-Eng Subject: Re: Klystron saturation Hi Colleagues, Could anyone advise whether we need to turn off the PFN servo when doing klystron saturation? Under what conditions we need to carry out the klystron saturation? Thanks in advance. Kim Yeung 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Jan 19 21:46:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16S2Ni-0006KP-00; Sat, 19 Jan 2002 21:46:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 810641112F3; Sat, 19 Jan 2002 21:31:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA06768 for linac-eng-list; Sat, 19 Jan 2002 14:19:33 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d10.mx.aol.com (imo-d10.mx.aol.com [205.188.157.42]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA06764 for ; Sat, 19 Jan 2002 14:19:32 -0600 (CST) From: Accelr8torButchr@aol.com Received: from Accelr8torButchr@aol.com by imo-d10.mx.aol.com (mail_out_v31_r1.25.) id c.20.2277f11e (4185) for ; Sat, 19 Jan 2002 15:19:00 -0500 (EST) Message-ID: <20.2277f11e.297b2eb4@aol.com> Date: Sat, 19 Jan 2002 15:19:00 EST Subject: Dynamic MLC problems To: Linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_20.2277f11e.297b2eb4_boundary" X-Mailer: AOL 6.0 for Windows XP US sub 51 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Accelr8torButchr@aol.com Date: Sat, 19 Jan 2002 15:19:00 EST Subject: Dynamic MLC problems To: Linac-eng@plato1.aristotle.net Content-Type: multipart/alternative; boundary="part1_20.2277f11e.297b2eb4_boundary" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --part1_20.2277f11e.297b2eb4_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Have an interesting problem on a 21EX with 80 leaf MLC. When running Dynamic treatments the machine intermittently shuts down with a MLC fault. Hitting "ENTER" clears this fault and the treatment can continue. I found that the MLC fault is caused by "Controller I/L -Secondary position." I believe the problem is a flaky leaf motor encoder but I'm not sure how to find which one. I've changed the SFB PCB's & cleaned all leaves. There are no slow motors as far as I can tell. I guess I could change all 80 motors. :) Any suggestions would be appreciated. Thanks, Ron --part1_20.2277f11e.297b2eb4_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Have an interesting problem on a 21EX with 80 leaf MLC. When running Dynamic treatments the machine intermittently shuts down with a MLC fault.  Hitting "ENTER" clears this fault and the treatment can continue.  I found that the MLC fault is caused by "Controller I/L -Secondary position."  I believe the problem is a flaky leaf motor encoder but I'm not sure how to find which one.  I've changed the SFB PCB's & cleaned all leaves. There are no slow motors as far as I can tell.  I guess I could change all 80 motors. :)

Any suggestions would be appreciated.
Thanks,
Ron --part1_20.2277f11e.297b2eb4_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sun Jan 20 08:00:53 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SByG-0001Z3-00; Sun, 20 Jan 2002 08:00:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 776DF1112F3; Sun, 20 Jan 2002 07:45:32 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id AAA13382 for linac-eng-list; Sun, 20 Jan 2002 00:30:21 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta6.snfc21.pbi.net (mta6.snfc21.pbi.net [206.13.28.240]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id AAA13378 for ; Sun, 20 Jan 2002 00:30:19 -0600 (CST) Received: from REI-DGPC1.pacbell.net ([216.103.85.50]) by mta6.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0GQ8005I14QBT3@mta6.snfc21.pbi.net> for Linac-eng@plato1.aristotle.net; Sat, 19 Jan 2002 22:30:18 -0800 (PST) Date: Sat, 19 Jan 2002 22:30:11 -0800 From: Domenic Greco Subject: Re: Dynamic MLC problems In-reply-to: <20.2277f11e.297b2eb4@aol.com> X-Sender: dgreco@postoffice.pacbell.net To: Accelr8torButchr@aol.com, Linac-eng@plato1.aristotle.net Message-id: <5.1.0.14.0.20020119222551.00e11ddc@postoffice.pacbell.net> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Content-type: text/html; charset=us-ascii Content-transfer-encoding: 7BIT Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 19 Jan 2002 22:30:11 -0800 From: Domenic Greco Subject: Re: Dynamic MLC problems In-reply-to: <20.2277f11e.297b2eb4@aol.com> X-Sender: dgreco@postoffice.pacbell.net To: Accelr8torButchr@aol.com, Linac-eng@plato1.aristotle.net Content-type: text/html; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk One scenario I've experienced with this fault is a loose leaf or carriage. In my failures,  the fault popped up on gantry rotation, causing movement of the leaf or carriage. The primary encoder reading doesn't change but the secondary does, causing the fault.

Regards,

Domenic Greco

At 03:19 PM 1/19/2002 -0500, Accelr8torButchr@aol.com wrote:
Have an interesting problem on a 21EX with 80 leaf MLC. When running Dynamic treatments the machine intermittently shuts down with a MLC fault.  Hitting "ENTER" clears this fault and the treatment can continue.  I found that the MLC fault is caused by "Controller I/L -Secondary position."  I believe the problem is a flaky leaf motor encoder but I'm not sure how to find which one.  I've changed the SFB PCB's & cleaned all leaves. There are no slow motors as far as I can tell.  I guess I could change all 80 motors. :)

Any suggestions would be appreciated.
Thanks,
Ron

1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sun Jan 20 14:48:52 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SIL6-0003kD-00; Sun, 20 Jan 2002 14:48:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id EDC4A1112F4; Sun, 20 Jan 2002 14:33:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA16678 for linac-eng-list; Sun, 20 Jan 2002 07:24:26 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tomts9-srv.bellnexxia.net (tomts9.bellnexxia.net [209.226.175.53]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA16674 for ; Sun, 20 Jan 2002 07:24:25 -0600 (CST) Received: from on.aibn.com ([64.228.43.18]) by tomts9-srv.bellnexxia.net (InterMail vM.4.01.03.16 201-229-121-116-20010115) with ESMTP id <20020120132423.FFL22140.tomts9-srv.bellnexxia.net@on.aibn.com> for ; Sun, 20 Jan 2002 08:24:23 -0500 Message-ID: <139447-220021020144349900@on.aibn.com> X-EM-Version: 6, 0, 1, 0 X-EM-Registration: #00F06206106618006920 X-Priority: 3 Reply-To: infosource@on.aibn.com Organization: InfoSource From: "Barbara Caldwell" To: "linac-eng@plato.aristotle.net" Subject: The United States Healthcare Directory Date: Sun, 20 Jan 2002 08:43:49 -0600 MIME-Version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA16675 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-EM-Version: 6, 0, 1, 0 X-EM-Registration: #00F06206106618006920 X-Priority: 3 Reply-To: infosource@on.aibn.com Organization: InfoSource From: "Barbara Caldwell" To: "linac-eng@plato.aristotle.net" Subject: The United States Healthcare Directory Date: Sun, 20 Jan 2002 08:43:49 -0600 Content-type: text/plain; charset="US-ASCII" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA16675 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk If this information is not relevant to you or your organization, please accept our apologies for taking your time. 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Please Note: If you do not respond to this message, you will be taken off our list automatically. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sun Jan 20 23:20:50 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SQKY-00063o-00; Sun, 20 Jan 2002 23:20:50 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 02F481112F4; Sun, 20 Jan 2002 23:05:15 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id PAA25721 for linac-eng-list; Sun, 20 Jan 2002 15:57:04 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA25717 for ; Sun, 20 Jan 2002 15:56:58 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id KAA14514 for ; Mon, 21 Jan 2002 10:51:22 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Mon, 21 Jan 2002 10:56:24 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 21 Jan 2002 10:56:02 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 21 Jan 2002 10:55:49 +1300 From: "Dave Pinchin" To: Subject: Re: Very unusual Millenium MLC faults Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id PAA25718 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 21 Jan 2002 10:55:49 +1300 From: "Dave Pinchin" To: Subject: Re: Very unusual Millenium MLC faults Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id PAA25718 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day, I'm worried. The linac controller is (should be) in charge here. If a collimator error occurs the MLC does not need to know about it. If an MLC error occurs then the linac controller does need to know about it. If a collimator error causes an MLC fault condition then this is a software issue that can only be addressed by Varian. Loading up a motor (especially one used for dynamic treatments) to solve a software issue frightens me. I would suggest that those involved make _loud_ representations to Varian. Dave. >>> Tim Cullen 19/01/02 10:07:12 >>> Tom, funny you should mention this. We just went through the same problem with a unit we are installing and have yet to release to clinical. Look at the Y1 and Y2 collimators when they are racing back to center in symmetrical mode. What are the individual minimum PRO readings? If below 2mm then you will receive a HW controller I/L at the MLC console. To eliminate this problem set the center uswitch to stop at no less than 5mm gap symmetrical. Now just to rub salt in the wound do the same thing with the X collimators, no problem. The SW handles the X collimators below the 2mm by telling you they are at an invalid position, no HW I/L and self-clearing??? As for the collimator motor speed, you're following the right path. Our local rep and I stayed late the other night and made these adjustments. Of course the tendency is to use the fast collimator(Y2) as your reference, wrong again. After several stabs at the mechanical adjustments on Y1(slow one), it was clear it was time to switch reference and slow Y2 down. Results were a nice smooth chase back to center with the roller right on the plate, yet not touching. As for speed, it was noticeable when they were going at different speeds but not enough of a change to notice when they travel at the same speed. One tip, these are mechanical adjustments and will take several tries and patience. I noticed that to slow the collimator speed down by moving the position of the eccentric was sensitive and took several iterations by the local rep to get right. Hope this helps out, have a good weekend. "Bush, Thomas M." wrote: > OK... If anyone out there has seen this I would be surprised but even more > surprised if you had a fix for it. 2100cd S/N 453 with a very new Millenium > MLC running v6.2 software. > > If you place the Y jaws at a Y1 of 10 and a Y2 of -9.5 (asymmetrical and > closed as in after a dynamic wedge treatment) and then go to the hand > pendant or otherwise command a symmetrical alignment of the Y jaws, the two > jaws move together, separated by the 5mm closed condition (at ISO) until > they reach the midline and then they both open equally to 10x10 or whatever. > OK, on my machine one jaw is a very little faster than the other during this > off axis to axis shift and bumps the other about 4 or 5 times causing an MLC > fault. (Like, why does the MLC even care if they bump?) Actually, they > don't bump...they cause the closed microswitch to click over and over. If > they only click 2 to 3 times no MLC fault will occur. If you watch > HyperTerminal during this occurrence there will be many, many Assert, Clear > Upper collimator position faults and 6 or 8 are acceptable but then it will > fault requiring a complete initialization of the MLC to clear and continue > treating. If I reverse the setup, meaning a Y1 of -9.5 and Y2 of 10 then > there will be no problem and if you watch the light field or the jaw faces > they actually separate by about 2 mm (at ISO) by the time the two become > symmetrical and cause no MLC faults of course. > > Varian is not sure what is up but has seen the problem and suggested we > cause one jaw to slow down by tightening the gear play (as in 1/8 in pin > punch in hole thing) and essentially "bind up" the faster motor. It doesn't > help. It draws twice the current but goes just as fast. Good motor. I > could simply slow down the one motor either with a change of the Feedback > resistor on the motor driver pcb (this machine does not have PWM boards) or > something but I think the problem is software. I don't think it matters if > one jaw is slightly faster causing the click of the switch in my opinion > anyway. > > Well, this is a good one and for now we just tell them to pull away the one > jaw first and then go on to the next field setup. > Anyone?? You Canadians that have seen it all?? where are you when I need > you?? ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 05:40:58 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SWGQ-0007gS-00; Mon, 21 Jan 2002 05:40:58 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 91CC71112F4; Mon, 21 Jan 2002 05:25:19 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA01527 for linac-eng-list; Sun, 20 Jan 2002 22:22:47 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA01523 for ; Sun, 20 Jan 2002 22:22:45 -0600 (CST) Received: (qmail 56978 invoked from network); 21 Jan 2002 04:20:18 -0000 Received: from unknown (HELO webmail02) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 21 Jan 2002 04:20:18 -0000 Message-ID: <1021221.1011586929214.JavaMail.root@webmail02> Date: Mon, 21 Jan 2002 12:22:09 +0800 (HKT) From: Jonathan Chan To: Domenic Greco , Accelr8torButchr , Linac-eng Subject: Re: Dynamic MLC problems Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 21 Jan 2002 12:22:09 +0800 (HKT) From: Jonathan Chan To: Domenic Greco , Accelr8torButchr , Linac-eng Subject: Re: Dynamic MLC problems Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is very common with IMRT. One way to reduce the frequency of occurence is to initialize the MLC every morning (my humble experience with my machine). -----Original Message----- From: Domenic Greco Sent: Sun Jan 20 14:30:11 HKT 2002 To: Accelr8torButchr Linac-eng Cc: Accelr8torButchr Linac-eng Subject: Re: Dynamic MLC problems One scenario I've experienced with this fault is a loose leaf or carriage. In my failures,?the fault popped up on gantry rotation, causing movement of the leaf or carriage. The primary encoder reading doesn't change but the secondary does, causing the fault.

Regards,

Domenic Greco

At 03:19 PM 1/19/2002 -0500, Accelr8torButchr@aol.com wrote:
Have an interesting problem on a 21EX with 80 leaf MLC. When running Dynamic treatments the machine intermittently shuts down with a MLC fault.? Hitting "ENTER" clears this fault and the treatment can continue.?I found that the MLC fault is caused by "Controller I/L -Secondary position."?I believe the problem is a flaky leaf motor encoder but I'm not sure how to find which one.?I've changed the SFB PCB's & cleaned all leaves. There are no slow motors as far as I can tell.?I guess I could change all 80 motors. :)

Any suggestions would be appreciated.
Thanks,
Ron

1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 05:41:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SWGT-0007gW-00; Mon, 21 Jan 2002 05:41:02 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3AB401112F4; Mon, 21 Jan 2002 05:25:24 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id WAA01498 for linac-eng-list; Sun, 20 Jan 2002 22:19:17 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA01493 for ; Sun, 20 Jan 2002 22:19:14 -0600 (CST) Received: (qmail 54902 invoked from network); 21 Jan 2002 04:16:45 -0000 Received: from unknown (HELO webmail02) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 21 Jan 2002 04:16:45 -0000 Message-ID: <3387809.1011586716486.JavaMail.root@webmail02> Date: Mon, 21 Jan 2002 12:18:36 +0800 (HKT) From: Jonathan Chan To: Dave Pinchin , linac-eng Subject: Re: Very unusual Millenium MLC faults Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 21 Jan 2002 12:18:36 +0800 (HKT) From: Jonathan Chan To: Dave Pinchin , linac-eng Subject: Re: Very unusual Millenium MLC faults Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Don't know the actual reason. But I have seen a similar case. The MLC does not like the Y jaws being too close (0.2 cm), and it complains (MLC interlock). Jonathan Chan -----Original Message----- From: Dave Pinchin Sent: Mon Jan 21 05:55:49 HKT 2002 To: linac-eng Cc: linac-eng Subject: Re: Very unusual Millenium MLC faults G'day, I'm worried. The linac controller is (should be) in charge here. If a collimator error occurs the MLC does not need to know about it. If an MLC error occurs then the linac controller does need to know about it. If a collimator error causes an MLC fault condition then this is a software issue that can only be addressed by Varian. Loading up a motor (especially one used for dynamic treatments) to solve a software issue frightens me. I would suggest that those involved make _loud_ representations to Varian. Dave. >>> Tim Cullen 19/01/02 10:07:12 >>> Tom, funny you should mention this. We just went through the same problem with a unit we are installing and have yet to release to clinical. Look at the Y1 and Y2 collimators when they are racing back to center in symmetrical mode. What are the individual minimum PRO readings? If below 2mm then you will receive a HW controller I/L at the MLC console. To eliminate this problem set the center uswitch to stop at no less than 5mm gap symmetrical. Now just to rub salt in the wound do the same thing with the X collimators, no problem. The SW handles the X collimators below the 2mm by telling you they are at an invalid position, no HW I/L and self-clearing??? As for the collimator motor speed, you're following the right path. Our local rep and I stayed late the other night and made these adjustments. Of course the tendency is to use the fast collimator(Y2) as your reference, wrong again. After several stabs at the mechanical adjustments on Y1(slow one), it was clear it was time to switch reference and slow Y2 down. Results were a nice smooth chase back to center with the roller right on the plate, yet not touching. As for speed, it was noticeable when they were going at different speeds but not enough of a change to notice when they travel at the same speed. One tip, these are mechanical adjustments and will take several tries and patience. I noticed that to slow the collimator speed down by moving the position of the eccentric was sensitive and took several iterations by the local rep to get right. Hope this helps out, have a good weekend. "Bush, Thomas M." wrote: > OK... If anyone out there has seen this I would be surprised but even more > surprised if you had a fix for it. 2100cd S/N 453 with a very new Millenium > MLC running v6.2 software. > > If you place the Y jaws at a Y1 of 10 and a Y2 of -9.5 (asymmetrical and > closed as in after a dynamic wedge treatment) and then go to the hand > pendant or otherwise command a symmetrical alignment of the Y jaws, the two > jaws move together, separated by the 5mm closed condition (at ISO) until > they reach the midline and then they both open equally to 10x10 or whatever. > OK, on my machine one jaw is a very little faster than the other during this > off axis to axis shift and bumps the other about 4 or 5 times causing an MLC > fault. (Like, why does the MLC even care if they bump?) Actually, they > don't bump...they cause the closed microswitch to click over and over. If > they only click 2 to 3 times no MLC fault will occur. If you watch > HyperTerminal during this occurrence there will be many, many Assert, Clear > Upper collimator position faults and 6 or 8 are acceptable but then it will > fault requiring a complete initialization of the MLC to clear and continue > treating. If I reverse the setup, meaning a Y1 of -9.5 and Y2 of 10 then > there will be no problem and if you watch the light field or the jaw faces > they actually separate by about 2 mm (at ISO) by the time the two become > symmetrical and cause no MLC faults of course. > > Varian is not sure what is up but has seen the problem and suggested we > cause one jaw to slow down by tightening the gear play (as in 1/8 in pin > punch in hole thing) and essentially "bind up" the faster motor. It doesn't > help. It draws twice the current but goes just as fast. Good motor. I > could simply slow down the one motor either with a change of the Feedback > resistor on the motor driver pcb (this machine does not have PWM boards) or > something but I think the problem is software. I don't think it matters if > one jaw is slightly faster causing the click of the switch in my opinion > anyway. > > Well, this is a good one and for now we just tell them to pull away the one > jaw first and then go on to the next field setup. > Anyone?? You Canadians that have seen it all?? where are you when I need > you?? ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 10:31:11 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SanH-0001Rx-00; Mon, 21 Jan 2002 10:31:11 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8541F1112F5; Mon, 21 Jan 2002 10:15:29 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id DAA04025 for linac-eng-list; Mon, 21 Jan 2002 03:07:21 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA04021 for ; Mon, 21 Jan 2002 03:07:19 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Mon, 21 Jan 2002 10:06:49 +0100 Message-ID: <9D894AB8D748D3118A1800508B073AE601A4926B@CLV4> From: "Lindroth Bernt, MFT CLV" To: "'Accelr8torButchr@aol.com'" Cc: Linac-eng@plato1.aristotle.net Subject: MLC-problems Date: Mon, 21 Jan 2002 10:06:47 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id DAA04022 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lindroth Bernt, MFT CLV" To: "'Accelr8torButchr@aol.com'" Cc: Linac-eng@plato1.aristotle.net Subject: MLC-problems Date: Mon, 21 Jan 2002 10:06:47 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id DAA04022 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hej, Ron! I have a suggestion that might solve your problem. Create a new table for the secondary position leafs softpots. It ´s done as follows: 1. Work in Hyperterminal MLC 2. Type (mlcStop) to stop the MLC-program 3. Type (rm "ffs:secInit2A.txt"), this will erase the current table for the values on carriage A. "Ffs" stands for "fixed file system". 4. Initialize the MLC, by pressing the reset-button on the MLC-controller, this will cause the MLC-program to read in new values to this table. It´s not necessary to erase the values for carriage B, they will be updated automatically. The initialization will take a little longer than usual. This procedure is recommended every time you work on the MLC (i.e. lift the "secondary feedback card").I hope this helps solving your problem. All the best from Bernt Lindroth 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 15:47:25 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SfjJ-00062X-00; Mon, 21 Jan 2002 15:47:25 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BA6E91112F3; Mon, 21 Jan 2002 15:31:39 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA07760 for linac-eng-list; Mon, 21 Jan 2002 08:24:15 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from murphys.services.quay.plus.net ([212.159.14.225]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id IAA07756 for ; Mon, 21 Jan 2002 08:24:14 -0600 (CST) From: jim@northcoast.f9.co.uk Received: (qmail 12576 invoked from network); 21 Jan 2002 14:23:39 -0000 Received: from unknown (HELO gillespies.servers.plus.net) (192.168.227.10) by murphy.services.quay.plus.net with SMTP; 21 Jan 2002 14:23:39 -0000 Received: (qmail 19491 invoked by uid 60001); 21 Jan 2002 14:23:37 -0000 Date: 21 Jan 2002 14:23:37 -0000 To: linac-eng@plato1.aristotle.net Subject: DERMOPAN Reply-To: jim@northcoast.f9.co.uk X-Mailer: PlusMail Message-ID: <20020121142337.northcoast@force9> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jim@northcoast.f9.co.uk Date: 21 Jan 2002 14:23:37 -0000 To: linac-eng@plato1.aristotle.net Subject: DERMOPAN Reply-To: jim@northcoast.f9.co.uk Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The department has a Siemens DERMOPAN 2 surlpus to requirements. This is free to any interested party, all we ask is that you collect it. Further information from: Jim Wallace Radiation Physics The Princess Royal Hospital Hull England. Tel 01482 676694 / 676629 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 15:51:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Sfn7-00066S-00; Mon, 21 Jan 2002 15:51:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 560171112F3; Mon, 21 Jan 2002 15:35:35 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA07945 for linac-eng-list; Mon, 21 Jan 2002 08:33:05 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.wfubmc.edu (mailadmin.wfubmc.edu [152.11.200.6]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA07941 for ; Mon, 21 Jan 2002 08:33:04 -0600 (CST) Received: from wfubmc.edu ([152.11.16.97]) by mail.wfubmc.edu (Netscape Messaging Server 3.61) with ESMTP id AAA7254; Mon, 21 Jan 2002 09:32:31 -0500 Message-ID: <3C4C26DE.4387B249@wfubmc.edu> Date: Mon, 21 Jan 2002 09:34:06 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Mailer: Mozilla 4.6 [en]C-CCK-MCD (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: Dave Pinchin Cc: linac-eng@plato1.aristotle.net Subject: Re: Very unusual Millenium MLC faults References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 21 Jan 2002 09:34:06 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Accept-Language: en To: Dave Pinchin Cc: linac-eng@plato1.aristotle.net Subject: Re: Very unusual Millenium MLC faults Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk No worries, mate. sorry couldn't resist. You want the collimators to run at somewhat equal speeds so you don't have them start and stopping back to center. The speed difference was also noticed in the EDW. When the physics folks were collecting data with the diode array you could see this on the scans of the two collimators from one side to the other. When you overlay the scans, it was a noticeable difference before adjusting the motor speed. We'll have to confirm this the next scan time around. It appears the only way to accomplish equal speed is to load or unload a motor. Better to load though because this is what removes the end play. On the issue of SW, probably nothing more than a mis-communication between engineering and programming. I think this is par for the course nowadays. Everybody seems to release SW with some little tidbit not just right. Unfortunately it does cause a bit of complacency in both parties. Tim Dave Pinchin wrote: > G'day, > I'm worried. The linac controller is (should be) in charge here. If a collimator error occurs the MLC does not need to know about it. If an MLC error occurs then the linac controller does need to know about it. > > If a collimator error causes an MLC fault condition then this is a software issue that can only be addressed by Varian. > > Loading up a motor (especially one used for dynamic treatments) to solve a software issue frightens me. > > I would suggest that those involved make _loud_ representations to Varian. > > Dave. > __________snipped____________ 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 16:00:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SfvV-0006Ec-00; Mon, 21 Jan 2002 16:00:01 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id EABD41112F3; Mon, 21 Jan 2002 15:44:15 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA08323 for linac-eng-list; Mon, 21 Jan 2002 08:45:03 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id IAA08319 for ; Mon, 21 Jan 2002 08:45:02 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA03418; Mon, 21 Jan 2002 08:50:24 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3C4C297C.5EA51AB2@scf.sk.ca> Date: Mon, 21 Jan 2002 08:45:16 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: Accelr8torButchr@aol.com, "Linac-Engineers, Listserver" Subject: Re: Dynamic MLC problems References: <20.2277f11e.297b2eb4@aol.com> Content-Type: multipart/mixed; boundary="------------3C173008CFCD043671100564" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 21 Jan 2002 08:45:16 -0600 From: Chris Barnardo X-Accept-Language: en To: Accelr8torButchr@aol.com, "Linac-Engineers, Listserver" Subject: Re: Dynamic MLC problems Content-Type: multipart/mixed; boundary="------------3C173008CFCD043671100564" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------3C173008CFCD043671100564 Content-Type: multipart/alternative; boundary="------------AA387399D62BBB7AE02A12B8" --------------AA387399D62BBB7AE02A12B8 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Just wondering what version of MLC software you are using. I beleive ver 6.2 addresses a lot of dynamic treatment interlocks. Accelr8torButchr@aol.com wrote: > Have an interesting problem on a 21EX with 80 leaf MLC. When running > Dynamic treatments the machine intermittently shuts down with a MLC > fault. Hitting "ENTER" clears this fault and the treatment can > continue. I found that the MLC fault is caused by "Controller I/L > -Secondary position." I believe the problem is a flaky leaf motor > encoder but I'm not sure how to find which one. I've changed the SFB > PCB's & cleaned all leaves. There are no slow motors as far as I can > tell. I guess I could change all 80 motors. :) > > Any suggestions would be appreciated. > Thanks, > Ron --------------AA387399D62BBB7AE02A12B8 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Just wondering what version of MLC software you are using. I beleive ver 6.2 addresses a lot of dynamic treatment interlocks.
 
 
 

Accelr8torButchr@aol.com wrote:

Have an interesting problem on a 21EX with 80 leaf MLC. When running Dynamic treatments the machine intermittently shuts down with a MLC fault.  Hitting "ENTER" clears this fault and the treatment can continue.  I found that the MLC fault is caused by "Controller I/L -Secondary position."  I believe the problem is a flaky leaf motor encoder but I'm not sure how to find which one.  I've changed the SFB PCB's & cleaned all leaves. There are no slow motors as far as I can tell.  I guess I could change all 80 motors. :)

Any suggestions would be appreciated.
Thanks,
Ron

--------------AA387399D62BBB7AE02A12B8-- --------------3C173008CFCD043671100564 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------3C173008CFCD043671100564-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 17:19:57 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ShAr-0007Lx-00; Mon, 21 Jan 2002 17:19:57 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F1C021112F3; Mon, 21 Jan 2002 17:04:09 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id JAA10599 for linac-eng-list; Mon, 21 Jan 2002 09:57:35 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from advocatehealth.com (moat.advocatehealth.com [64.241.230.20]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA10595 for ; Mon, 21 Jan 2002 09:57:33 -0600 (CST) Received: from nsmailha ([10.18.117.13]) by ns.advocatehealth.com with ESMTP id <119043>; Mon, 21 Jan 2002 09:57:25 -0600 Received: from advocatehealth.com (localhost [127.0.0.1]) by webmail.advocatehealth.com (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0GQA00FC0PNNVH@webmail.advocatehealth.com> for linac-eng@plato1.aristotle.net; Mon, 21 Jan 2002 09:57:23 -0600 (CST) Received: by webmail.advocatehealth.com id ; Mon, 21 Jan 2002 09:56:54 -0600 Date: Mon, 21 Jan 2002 09:53:00 -0600 From: Kerry Price Subject: Varian Clinac 2100C, Ver 6.2 To: linac-eng@plato1.aristotle.net Message-id: MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-identifier: CCMAIL-200201210956540001 Hop-count: 1 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 21 Jan 2002 09:53:00 -0600 From: Kerry Price Subject: Varian Clinac 2100C, Ver 6.2 To: linac-eng@plato1.aristotle.net Content-type: text/plain; charset=US-ASCII Content-identifier: CCMAIL-200201210956540001 Hop-count: 1 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Does anyone know what it means when the pendant has a flashing "beta" symbol on the left side of the pendant display? Kerry Price Advocate Lutheran General Hospital Park Ridge, IL USA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 21 22:16:23 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Slnj-0000Sq-00; Mon, 21 Jan 2002 22:16:23 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0D3EA1112F2; Mon, 21 Jan 2002 22:00:31 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA15402 for linac-eng-list; Mon, 21 Jan 2002 13:21:50 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc_nt ([207.35.220.24]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA15398 for ; Mon, 21 Jan 2002 13:21:48 -0600 (CST) Received: by KRCCMAIL with Internet Mail Service (5.5.2653.19) id ; Mon, 21 Jan 2002 14:22:09 -0500 Message-ID: From: "Kloster, Stephen" To: "'Kerry Price'" , linac-eng@plato1.aristotle.net Subject: RE: Varian Clinac 2100C, Ver 6.2 Date: Mon, 21 Jan 2002 14:22:08 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A2B0.EB168530" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kloster, Stephen" To: "'Kerry Price'" , linac-eng@plato1.aristotle.net Subject: RE: Varian Clinac 2100C, Ver 6.2 Date: Mon, 21 Jan 2002 14:22:08 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A2B0.EB168530" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1A2B0.EB168530 Content-Type: text/plain; charset="iso-8859-1" Hi Kerry, I can't tell you what it means, but I have had the same symptom which was cleared by replacing the processor chip in the pendant. Regards, Steve Kloster Kingston Regional Cancer Centre Kingston, Ontario -----Original Message----- From: Kerry Price [mailto:Kerry.Price@advocatehealth.com] Sent: Monday, January 21, 2002 10:53 AM To: linac-eng@plato1.aristotle.net Subject: Varian Clinac 2100C, Ver 6.2 Does anyone know what it means when the pendant has a flashing "beta" symbol on the left side of the pendant display? Kerry Price Advocate Lutheran General Hospital Park Ridge, IL USA ------_=_NextPart_001_01C1A2B0.EB168530 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Varian Clinac 2100C, Ver 6.2

Hi Kerry,
I can't tell you what it means, but I have had the = same symptom which was cleared by replacing the processor chip in the = pendant.

Regards,
Steve Kloster
Kingston Regional Cancer Centre
Kingston, Ontario

-----Original Message-----
From: Kerry Price [mailto:Kerry.Price@advoca= tehealth.com]
Sent: Monday, January 21, 2002 10:53 AM
To: linac-eng@plato1.aristotle.net
Subject: Varian Clinac 2100C, Ver 6.2


     Does anyone know what it = means when the pendant has a flashing "beta"
     symbol on the left side of = the pendant display?
    
     Kerry Price
     Advocate Lutheran General = Hospital
     Park Ridge, IL USA

------_=_NextPart_001_01C1A2B0.EB168530-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-medical-physics-engineering@JISCMAIL.AC.UK Tue Jan 22 05:40:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Ssj5-0002Lj-00; Tue, 22 Jan 2002 05:40:03 +0100 Received: from jiscmail.ac.uk (jiscmail.ac.uk [130.246.192.48]) by caviar.isi.uu.nl (Postfix) with ESMTP id 322011112F2 for ; Tue, 22 Jan 2002 05:24:07 +0100 (MET) Received: from jiscmail (jiscmail.ac.uk) by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <7.000B83EF@jiscmail.ac.uk>; Tue, 22 Jan 2002 4:39:02 +0000 Received: from JISCMAIL.AC.UK by JISCMAIL.AC.UK (LISTSERV-TCP/IP release 1.8d) with spool id 9198056 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Tue, 22 Jan 2002 04:39:01 +0000 Received: from ori.rl.ac.uk by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <6.000B8242@jiscmail.ac.uk>; Tue, 22 Jan 2002 4:39:00 +0000 Received: from hotmail.com (f26.law8.hotmail.com [216.33.241.26]) by ori.rl.ac.uk (8.11.1/8.11.1) with ESMTP id g0M4cx710998 for ; Tue, 22 Jan 2002 04:38:59 GMT Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 21 Jan 2002 20:38:53 -0800 Received: from 165.228.3.69 by lw8fd.law8.hotmail.msn.com with HTTP; Tue, 22 Jan 2002 04:38:53 GMT X-Originating-IP: [165.228.3.69] Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 22 Jan 2002 04:38:53.0431 (UTC) FILETIME=[B1F83070:01C1A2FE] Message-ID: Date: Tue, 22 Jan 2002 15:38:53 +1100 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: graham freestone Subject: MU check programs Comments: To: acpsem@mtp.pd.uwa.edu.au, medphys@lists.wayne.edu To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK *** EOOH *** X-Originating-IP: [165.228.3.69] Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 22 Jan 2002 04:38:53.0431 (UTC) FILETIME=[B1F83070:01C1A2FE] Date: Tue, 22 Jan 2002 15:38:53 +1100 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: graham freestone Subject: MU check programs Comments: To: acpsem@mtp.pd.uwa.edu.au, medphys@lists.wayne.edu To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK Dear All, Can anybody recommend any commercial/shareware MU check programs? (We have both conventional and digital Siemens machines, one with MLC) TIA Graham Freestone Senior Physicist, Adelaide Radiotherapy Centre, Adelaide, Australia. _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 08:08:13 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Sv2T-0003Oc-00; Tue, 22 Jan 2002 08:08:13 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3A2AC1112F2; Tue, 22 Jan 2002 07:52:13 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id AAA04481 for linac-eng-list; Tue, 22 Jan 2002 00:46:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lnlteks1.ksshp.fi (ksws.ksshp.fi [62.236.193.133]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id AAA04476 for ; Tue, 22 Jan 2002 00:46:44 -0600 (CST) From: jouni.keinonen@ksshp.fi Subject: another UDR1/2 problem... To: Linac-eng@plato1.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Tue, 22 Jan 2002 08:45:57 +0200 X-MIMETrack: Serialize by Router on LNLTEKS1/KSSHP(Release 5.0.4a |July 24, 2000) at 22.01.2002 08:46:30 MIME-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id AAA04478 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jouni.keinonen@ksshp.fi Subject: another UDR1/2 problem... To: Linac-eng@plato1.aristotle.net Date: Tue, 22 Jan 2002 08:45:57 +0200 X-MIMETrack: Serialize by Router on LNLTEKS1/KSSHP(Release 5.0.4a |July 24, 2000) at 22.01.2002 08:46:30 Content-type: text/plain; charset=iso-8859-1 X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id AAA04478 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello guys. We have also UDR1/2 ?problem with 15X in our 2100 CD machine (sn.1184). When we beam on, sometimes the first couple of seconds the doserate is very low and then it rises up to normal. Result of that is usually UDR1/2 or TIME interlock. This don't hapend every time when we beam on in 15X, but anyway many times a day and it is getting worse. If we run beam dose servos OFF we have proper doserate e.g. 300 we have about 330. GUN I, PFN and RFDR values haven't change since last PMI. We also have portalvision on our system, could it cause this kind of problem? Or could this be also caused by DQing thyratron (like the other problem you were talking in this list)? Or what??? All the other energies works just fine? Thanks in advance. Jouni Keinonen K-S Keskussairaala JYVÄSKYLÄ FINLAND 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 11:32:53 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SyEX-0005zo-00; Tue, 22 Jan 2002 11:32:53 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 23C261112F3; Tue, 22 Jan 2002 11:16:50 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id EAA06880 for linac-eng-list; Tue, 22 Jan 2002 04:08:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA06876 for ; Tue, 22 Jan 2002 04:08:29 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16SxqO-0006kO-00; Tue, 22 Jan 2002 10:07:56 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C48064600031C8D for linac-eng@plato1.aristotle.net; Tue, 22 Jan 2002 10:07:56 +0000 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C47F0020004993D for linac-eng@plato1.aristotle.net; Tue, 22 Jan 2002 10:07:56 +0000 X-Internal-ID: 3C4D19F00000195E Received: from theta.velindre-tr.wales.nhs.uk (137.11.128.23) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato1.aristotle.net; 22 Jan 2002 10:05:21 +0000 Received: by theta.velindre-tr.wales.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Tue, 22 Jan 2002 10:08:13 -0000 Message-ID: From: Stephen Hayes To: "'linac-eng@plato1.aristotle.net'" Subject: Varian carrousel position pot Date: Tue, 22 Jan 2002 10:08:12 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3C4D19F00000195E From: Stephen Hayes To: "'linac-eng@plato1.aristotle.net'" Subject: Varian carrousel position pot Date: Tue, 22 Jan 2002 10:08:12 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We need to change the position pot attached to the carrousel drive chain on a 2100CD. (The wiper arm has gone open circuit giving CARR and FOIL I/Ls). Has anyone had any experience changing one? Is it as straight forward as loosen the pot and take it out or do we need to hold the chain in position somehow? Any advice would be appreciated. Steve Hayes S Wales UK 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 13:02:47 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16SzdW-00071q-00; Tue, 22 Jan 2002 13:02:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id DEF851112F2; Tue, 22 Jan 2002 12:46:43 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id FAA07817 for linac-eng-list; Tue, 22 Jan 2002 05:40:58 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hrccex.hrcc.on.ca (hrccfire.hrcc.on.ca [209.167.169.190]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id FAA07813 for ; Tue, 22 Jan 2002 05:40:56 -0600 (CST) Received: from SMTP agent by mail gateway Tue, 22 Jan 2002 07:11:49 -0500 Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 22 Jan 2002 06:38:32 -0500 Message-ID: <9C688FB52A05D51194750002B325B5F714FEC8@hrccex.hrcc.on.ca> From: "Lapenna, Russ" To: "'Stephen Hayes'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: Varian carrousel position pot Date: Tue, 22 Jan 2002 06:38:32 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lapenna, Russ" To: "'Stephen Hayes'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: Varian carrousel position pot Date: Tue, 22 Jan 2002 06:38:32 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk If memory serves me you need to make sure you measure exactly 5V at the wiper when the pin is engaged in the carousel. Russ LaPenna Electronics Engineering Technologist Medical Physics Department Hamilton Regional Cancer Centre 699 Concession St. Hamilton, Ontario Canada L8V 5C2 (905) 387-9711 ext. 67017 > -----Original Message----- > From: Stephen Hayes [mailto:Stephen.Hayes@velindre-tr.wales.nhs.uk] > Sent: 22 January, 2002 5:08 AM > To: 'linac-eng@plato1.aristotle.net' > Subject: Varian carrousel position pot > > > We need to change the position pot attached to the carrousel > drive chain on > a 2100CD. (The wiper arm has gone open circuit giving CARR > and FOIL I/Ls). > Has anyone had any experience changing one? Is it as straight > forward as > loosen the pot and take it out or do we need to hold the > chain in position > somehow? Any advice would be appreciated. > > Steve Hayes > S Wales > UK > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 13:35:42 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T09O-0007Ma-00; Tue, 22 Jan 2002 13:35:42 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2C8851112F2; Tue, 22 Jan 2002 13:19:39 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA08245 for linac-eng-list; Tue, 22 Jan 2002 06:14:08 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from au.dk (au.dk [130.225.9.11]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA08241 for ; Tue, 22 Jan 2002 06:14:06 -0600 (CST) From: Ole@medfys.aau.dk Received: from medfys.aau.dk (medfys.aau.dk [130.225.14.198]) by au.dk (8.11.4/8.11.4) with ESMTP id g0MC4OL12672; Tue, 22 Jan 2002 13:04:25 +0100 (MET) Received: from MEDFYS1/SpoolDir by medfys.aau.dk (Mercury 1.48); 22 Jan 02 13:13:20 MET-0100 Received: from SpoolDir by MEDFYS1 (Mercury 1.48); 22 Jan 02 13:13:00 MET-0100 Organization: Medicinsk Fysik @KNI To: linac-eng@plato1.aristotle.net Date: Tue, 22 Jan 2002 13:12:59 MET-0100 MIME-Version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Subject: QA system for Radiotherapy Treatments ? Cc: honore@medfysik.aau.dk X-mailer: Pegasus Mail for Windows (v3.01d) Message-ID: <670852F3E86@medfys.aau.dk> Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from Quoted-printable to 8bit by plato1.aristotle.net id GAA08242 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Ole@medfys.aau.dk Organization: Medicinsk Fysik @KNI To: linac-eng@plato1.aristotle.net Date: Tue, 22 Jan 2002 13:12:59 MET-0100 Content-type: text/plain; charset=ISO-8859-1 Subject: QA system for Radiotherapy Treatments ? Cc: honore@medfysik.aau.dk X-MIME-Autoconverted: from Quoted-printable to 8bit by plato1.aristotle.net id GAA08242 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Group, 1 of my physicist asked me to put on a question to the group = "In the near future we are going to implement a QA system for radiotherapy treatments in our department. We plan to follow the recommendations of ESTRO ('Practical Guidelines for the Implementation of a Quality System in radiotherapy', 1998). We need a software package which can handle all the QA documents (level 1, 2 and 3) and facilitate easy update and audit. Currently, we are considering a program called 'Sherlock' (European House of Quality) running on Lotus Notes. It fulfills our requirements but we would like to know if there are alternatives and what kind of experience others have with this type of software. The software we are looking for is not for recording of side effects in patients or software designed primarily to handle dose measurements and other QA measurements at the accelerators (like Argus). Henriette Honoré Medical Physicist" If any of you have any informations on this subject please answer directly to "Honore@medfysik.aau.dk" or me "Ole@medfysik.aau.dk" Thank you in advance ole Ole G. Nielsen Department of Medical Physics Aarhus University Hospital 8000 Aarhus C Denmark Voice +8949.2487 Fax +8949.2590 email: ole@medfysik.aau.dk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 14:43:50 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T1DK-00087E-00; Tue, 22 Jan 2002 14:43:50 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C50F51112F2; Tue, 22 Jan 2002 14:27:45 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA09696 for linac-eng-list; Tue, 22 Jan 2002 07:21:50 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id HAA09691 for ; Tue, 22 Jan 2002 07:21:48 -0600 (CST) Received: from sdc_dom-Message_Server by smtp.qe2-hsc.ns.ca with Novell_GroupWise; Tue, 22 Jan 2002 09:20:43 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 22 Jan 2002 09:20:38 -0400 From: "Scott Purcell" To: , Subject: Re: Varian carrousel position pot Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA09693 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 22 Jan 2002 09:20:38 -0400 From: "Scott Purcell" To: , Subject: Re: Varian carrousel position pot Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA09693 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We had this same problem on our 2100C/D sn 1025 about 3 months ago. First thing to do is to make sure you note how the chain runs around the carrousel unit. Believe me this will save you alot of effort if you get it right the first time!! Remove the bracket that holds the motor and the pot. When you install the new pot make sure it is at it centre position. It might also be an idea to use a piece of wire or something to hold the chain up so you don't have to fishing for it when you put the motor/pot bracket back in. Good luck Scott Purcell Linear Accelerator Service Technologist QEII Cancer Program Department of Medical Physics Nova Scotia Cancer Centre Dickson Building 5820 University Ave. Halifax, NS B3H 1V7 >>> Stephen Hayes 01/22/02 06:08AM >>> We need to change the position pot attached to the carrousel drive chain on a 2100CD. (The wiper arm has gone open circuit giving CARR and FOIL I/Ls). Has anyone had any experience changing one? Is it as straight forward as loosen the pot and take it out or do we need to hold the chain in position somehow? Any advice would be appreciated. Steve Hayes S Wales UK 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 15:29:29 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T1vV-0000CU-00; Tue, 22 Jan 2002 15:29:29 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3F5811112F2; Tue, 22 Jan 2002 15:13:23 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA10609 for linac-eng-list; Tue, 22 Jan 2002 08:07:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from chs-exchsv2.covhealth.com (exchangesvr.covhealth.com [207.165.234.87]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA10605 for ; Tue, 22 Jan 2002 08:07:29 -0600 (CST) Received: by CHS-EXCHSV2 with Internet Mail Service (5.5.2653.19) id ; Tue, 22 Jan 2002 08:07:28 -0600 Message-ID: <293B6F21E62CD411BEC400508BD681B2414BA6@CHS-EXCHSV2> From: "Lockhart, Ryan" To: "'linac-eng@plato1.aristotle.net'" Subject: 2100C3 GFIL Date: Tue, 22 Jan 2002 08:07:28 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lockhart, Ryan" To: "'linac-eng@plato1.aristotle.net'" Subject: 2100C3 GFIL Date: Tue, 22 Jan 2002 08:07:28 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We're having an intermittant GFIL during morning warmup on our 2100. It starts out as fairly constant, then flashes on every few seconds, then goes away entirely and stays away all day, only to reappear the next morning for warmup. It seems to be temperature sensitive, but which component? I have changed out the power supply board on the gun deck (the one with the 3 toggle switches). FYI, this is a digital gun deck. Thank you for your time and advice. Ryan Lockhart Covenant Medical Center Waterloo, IA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 17:44:27 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T426-0001sC-00; Tue, 22 Jan 2002 17:44:26 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E4BD51112F2; Tue, 22 Jan 2002 17:28:19 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id KAA13817 for linac-eng-list; Tue, 22 Jan 2002 10:12:25 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc_nt ([207.35.220.24]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA13813 for ; Tue, 22 Jan 2002 10:12:23 -0600 (CST) Received: by KRCCMAIL with Internet Mail Service (5.5.2653.19) id ; Tue, 22 Jan 2002 11:12:36 -0500 Message-ID: From: "Kloster, Stephen" To: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: 2100C3 GFIL Date: Tue, 22 Jan 2002 11:12:32 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A35F.98CB1070" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kloster, Stephen" To: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Subject: RE: 2100C3 GFIL Date: Tue, 22 Jan 2002 11:12:32 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A35F.98CB1070" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1A35F.98CB1070 Content-Type: text/plain; charset="iso-8859-1" Hi Ryan, If you remove the cold deck cover during warm-up when you expect this fault will occur, the display should give you a clue to the cause. I would also suggest that you look at the low voltage power supply for the hot deck. We have had a lot of gfil problems caused by a marginal voltage output from this supply. You can measure these voltages at test points on the hot deck filament power supply PCB after, of course, taking all appropriate safety measures for working on the hot deck. Regards, Steve Kloster Kingston Regional Cancer Centre Kingston, Ontario -----Original Message----- From: Lockhart, Ryan [mailto:LockhartR@covhealth.com] Sent: Tuesday, January 22, 2002 9:07 AM To: 'linac-eng@plato1.aristotle.net' Subject: 2100C3 GFIL We're having an intermittant GFIL during morning warmup on our 2100. It starts out as fairly constant, then flashes on every few seconds, then goes away entirely and stays away all day, only to reappear the next morning for warmup. It seems to be temperature sensitive, but which component? I have changed out the power supply board on the gun deck (the one with the 3 toggle switches). FYI, this is a digital gun deck. Thank you for your time and advice. Ryan Lockhart Covenant Medical Center Waterloo, IA ------_=_NextPart_001_01C1A35F.98CB1070 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: 2100C3 GFIL

Hi Ryan,
If you remove the cold deck cover during warm-up = when you expect this fault will occur, the display should give you a = clue to the cause. I would also suggest that you look at the low = voltage power supply for the hot deck. We have had a lot of gfil = problems caused by a marginal voltage output from this supply. You can = measure these voltages at test points on the hot deck filament power = supply PCB after, of course, taking all appropriate safety measures for = working on the hot deck.

Regards,
Steve Kloster
Kingston Regional Cancer Centre
Kingston, Ontario

-----Original Message-----
From: Lockhart, Ryan [mailto:LockhartR@covhealth.com]
Sent: Tuesday, January 22, 2002 9:07 AM
To: 'linac-eng@plato1.aristotle.net'
Subject: 2100C3 GFIL


We're having an intermittant GFIL during morning = warmup on our 2100.  It
starts out as fairly constant, then flashes on every = few seconds, then goes
away entirely and stays away all day, only to = reappear the next morning for
warmup.  It seems to be temperature sensitive, = but which component?  I have
changed out the power supply board on the gun deck = (the one with the 3
toggle switches).  FYI, this is a digital gun = deck.  Thank you for your time
and advice.

Ryan Lockhart
Covenant Medical Center
Waterloo, IA

------_=_NextPart_001_01C1A35F.98CB1070-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 18:08:32 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T4PQ-00020R-00; Tue, 22 Jan 2002 18:08:32 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 312181112F4; Tue, 22 Jan 2002 17:52:24 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA14753 for linac-eng-list; Tue, 22 Jan 2002 10:41:28 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA14749 for ; Tue, 22 Jan 2002 10:41:27 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g0MGeri23080; Tue, 22 Jan 2002 11:40:53 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B49.005856DB ; Tue, 22 Jan 2002 11:04:54 -0500 X-Lotus-FromDomain: LRCC To: "Lockhart, Ryan" Cc: "'linac-eng@plato1.aristotle.net'" Message-ID: <85256B49.005855F8.00@mail.lrcc.on.ca> Date: Tue, 22 Jan 2002 11:04:50 -0500 Subject: Re: 2100C3 GFIL Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Lockhart, Ryan" Cc: "'linac-eng@plato1.aristotle.net'" Date: Tue, 22 Jan 2002 11:04:50 -0500 Subject: Re: 2100C3 GFIL Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We chased a similar sounding problem a few months ago and in the end it was the A/D converter chip on the HOT DECK FILAMENT POWER SUPPLY. The chip is socketted so you can replace it in a few minutes. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 18:37:14 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T4rC-00028e-00; Tue, 22 Jan 2002 18:37:14 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B91A81112F2; Tue, 22 Jan 2002 18:21:06 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA15642 for linac-eng-list; Tue, 22 Jan 2002 11:08:49 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA15638 for ; Tue, 22 Jan 2002 11:08:42 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA26036; Tue, 22 Jan 2002 11:13:49 -0600 Message-Id: <3C4D9C35.2D9351B6@scf.sk.ca> Date: Tue, 22 Jan 2002 11:07:02 -0600 From: Scot Thiesson X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en,pdf Mime-Version: 1.0 To: "Lockhart, Ryan" Cc: "'linac-eng@plato1.aristotle.net'" Subject: Re: 2100C3 GFIL References: <293B6F21E62CD411BEC400508BD681B2414BA6@CHS-EXCHSV2> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 22 Jan 2002 11:07:02 -0600 From: Scot Thiesson X-Accept-Language: en,pdf To: "Lockhart, Ryan" Cc: "'linac-eng@plato1.aristotle.net'" Subject: Re: 2100C3 GFIL Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Wire W13 from the gantry patch panel to the aux electronics mother board could be the culprit. We have had this cable go bad with results as you describe. If you monitor the serial output with hyper terminal or similar software package you will see further information about the gun deck status. Just wiggle this cable through the gantry and it will show up on the serial information as a fault. If your machine is newer, it would be unlikely that W13 would be the culprit. Ours failed at a machine age of about four years. Happy hunting. Scot Thiesson A.B.C.C. Regina Sask. Canada "Lockhart, Ryan" wrote: > We're having an intermittant GFIL during morning warmup on our 2100. It > starts out as fairly constant, then flashes on every few seconds, then goes > away entirely and stays away all day, only to reappear the next morning for > warmup. It seems to be temperature sensitive, but which component? I have > changed out the power supply board on the gun deck (the one with the 3 > toggle switches). FYI, this is a digital gun deck. Thank you for your time > and advice. > > Ryan Lockhart > Covenant Medical Center > Waterloo, IA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 18:57:39 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T5Ax-0002E2-00; Tue, 22 Jan 2002 18:57:39 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 33A931112F2; Tue, 22 Jan 2002 18:41:31 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA16482 for linac-eng-list; Tue, 22 Jan 2002 11:29:39 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA16478 for ; Tue, 22 Jan 2002 11:29:36 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA26898; Tue, 22 Jan 2002 11:34:55 -0600 Message-Id: <3C4DA128.40EA1710@scf.sk.ca> Date: Tue, 22 Jan 2002 11:28:08 -0600 From: Scot Thiesson X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en,pdf Mime-Version: 1.0 To: Scott Purcell Cc: linac-eng@plato1.aristotle.net, Stephen.Hayes@velindre-tr.wales.nhs.uk Subject: Re: Varian carrousel position pot References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 22 Jan 2002 11:28:08 -0600 From: Scot Thiesson X-Accept-Language: en,pdf To: Scott Purcell Cc: linac-eng@plato1.aristotle.net, Stephen.Hayes@velindre-tr.wales.nhs.uk Subject: Re: Varian carrousel position pot Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Yes it's such fun to fish for this chain. I have removed ours and cleaned it in an ultrasonic bath. You would not believe the crud that comes out of these chains after a couple of years of service. You should check each link to link pivot as a couple of sieved links will cause great problems and many CAL cycles in the morning! AS for the pot position, as others have said 5 volts is the magic number with the pin down. Scot Thiesson A.B.C.C. Regina Sask. Canada Scott Purcell wrote: > We had this same problem on our 2100C/D sn 1025 about 3 months ago. First thing to do is to make sure you note how the chain runs around the carrousel unit. Believe me this will save you alot of effort if you get it right the first time!! Remove the bracket that holds the motor and the pot. When you install the new pot make sure it is at it centre position. It might also be an idea to use a piece of wire or something to hold the chain up so you don't have to fishing for it when you put the motor/pot bracket back in. > > Good luck > > Scott Purcell > Linear Accelerator Service Technologist > QEII Cancer Program > Department of Medical Physics > Nova Scotia Cancer Centre > Dickson Building > 5820 University Ave. > Halifax, NS > B3H 1V7 > > > >>> Stephen Hayes 01/22/02 06:08AM >>> > We need to change the position pot attached to the carrousel drive chain on > a 2100CD. (The wiper arm has gone open circuit giving CARR and FOIL I/Ls). > Has anyone had any experience changing one? Is it as straight forward as > loosen the pot and take it out or do we need to hold the chain in position > somehow? Any advice would be appreciated. > > Steve Hayes > S Wales > UK 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 18:58:14 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T5BV-0002EL-00; Tue, 22 Jan 2002 18:58:14 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 181D31112F2; Tue, 22 Jan 2002 18:42:06 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA16592 for linac-eng-list; Tue, 22 Jan 2002 11:33:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA16587 for ; Tue, 22 Jan 2002 11:33:36 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Tue, 22 Jan 2002 11:07:54 -0600 Received: by corpexcon01.columbia.net with Internet Mail Service (5.5.2653.19) id ; Tue, 22 Jan 2002 11:07:57 -0600 Message-ID: <87DA8A9ECCCFD211B51E0008C7B1558506E507E8@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'Lockhart, Ryan'" , "Linac-eng (E-mail)" Subject: RE: 2100C3 GFIL Date: Tue, 22 Jan 2002 11:00:29 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'Lockhart, Ryan'" , "Linac-eng (E-mail)" Subject: RE: 2100C3 GFIL Date: Tue, 22 Jan 2002 11:00:29 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Yo Ryan! How old is your gun????????????? > -----Original Message----- > From: Lockhart, Ryan [SMTP:LockhartR@covhealth.com] > Sent: Tuesday, January 22, 2002 8:07 AM > To: 'linac-eng@plato1.aristotle.net' > Subject: 2100C3 GFIL > > We're having an intermittant GFIL during morning warmup on our 2100. It > starts out as fairly constant, then flashes on every few seconds, then > goes > away entirely and stays away all day, only to reappear the next morning > for > warmup. It seems to be temperature sensitive, but which component? I > have > changed out the power supply board on the gun deck (the one with the 3 > toggle switches). FYI, this is a digital gun deck. Thank you for your > time > and advice. > > Ryan Lockhart > Covenant Medical Center > Waterloo, IA 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 22 22:01:39 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16T831-000391-00; Tue, 22 Jan 2002 22:01:39 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 588F41112F2; Tue, 22 Jan 2002 21:45:29 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id OAA23998 for linac-eng-list; Tue, 22 Jan 2002 14:36:14 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA23989 for ; Tue, 22 Jan 2002 14:36:11 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA15476 for ; Wed, 23 Jan 2002 09:30:25 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Wed, 23 Jan 2002 09:35:36 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 23 Jan 2002 09:35:13 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 23 Jan 2002 09:35:08 +1300 From: "Dave Pinchin" To: , Subject: Re: another UDR1/2 problem... Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id OAA23993 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 23 Jan 2002 09:35:08 +1300 From: "Dave Pinchin" To: , Subject: Re: another UDR1/2 problem... Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id OAA23993 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day Jouni, I havn't seen you before on the list. If you are new then welcome aboard. My reply here is based on an assumption that you are relativly new to linac engineering. If you are an 'old hand' then you may find this a little simplistic. We have 2100cd 1164 also with PV. Your machine will probably have the pulse length servo for PV. There is some conflicting information. If you reliably get 330 rate with the servo off then it points to the PLS servo board. But if this is the problem I would expect 6X to be crook as well. It is easily checked by 'scoping the target I or gun I and watching the length of the pulse. More likely it is the PFN. The % change for dose / no-dose is quite small. I have seen only a few hundred volts make all the difference. The first check would be to check the setting of the PFN for 15X. Don't forget to measure the touch point before you tweek the PFN pot. Turn the dose servo and the pfn servo off and tweek the PFN pot for best beam. Also remember to get the tame physicists to check the dosimetry. The DQ thyratron can easily be monitored on the HVPSI connector. The DQ point should be at about 50% of the peek value. If it is not (or is unstable) then you have problems there. Don't ignore the 3 phase supply. A low phase will cause all sorts of trouble. Good hunting. Dave >>> 22/01/02 19:45:57 >>> Hello guys. We have also UDR1/2 ?problem with 15X in our 2100 CD machine (sn.1184). When we beam on, sometimes the first couple of seconds the doserate is very low and then it rises up to normal. Result of that is usually UDR1/2 or TIME interlock. This don't hapend every time when we beam on in 15X, but anyway many times a day and it is getting worse. If we run beam dose servos OFF we have proper doserate e.g. 300 we have about 330. GUN I, PFN and RFDR values haven't change since last PMI. We also have portalvision on our system, could it cause this kind of problem? Or could this be also caused by DQing thyratron (like the other problem you were talking in this list)? Or what??? All the other energies works just fine? Thanks in advance. Jouni Keinonen K-S Keskussairaala JYVÄSKYLÄ FINLAND ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 23 00:15:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TA8O-0003i3-00; Wed, 23 Jan 2002 00:15:20 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7895C1112F2; Tue, 22 Jan 2002 23:59:08 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id QAA00137 for linac-eng-list; Tue, 22 Jan 2002 16:44:36 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA00131 for ; Tue, 22 Jan 2002 16:44:29 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id QAA26909; Tue, 22 Jan 2002 16:40:47 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B49.007C8C63 ; Tue, 22 Jan 2002 16:40:24 -0600 X-Lotus-FromDomain: MDACC To: "Kloster, Stephen" Cc: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Message-ID: <86256B49.007C8AD3.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 22 Jan 2002 16:39:55 -0600 Subject: RE: 2100C3 GFIL Mime-Version: 1.0 Content-type: multipart/mixed; Boundary="0__=bT7M0JC2fAiRdGYMFxbZcp59HB2VRdW62TVqX6JAIXtaNhhIce2A80Bc" Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Kloster, Stephen" Cc: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" Date: Tue, 22 Jan 2002 16:39:55 -0600 Subject: RE: 2100C3 GFIL Content-type: multipart/mixed; Boundary="0__=bT7M0JC2fAiRdGYMFxbZcp59HB2VRdW62TVqX6JAIXtaNhhIce2A80Bc" Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --0__=bT7M0JC2fAiRdGYMFxbZcp59HB2VRdW62TVqX6JAIXtaNhhIce2A80Bc Content-type: text/plain; charset=us-ascii Content-Disposition: inline We've seen that HOT DECK PS A/D chip cause these symptoms on several of our machines (3 in 4 years now) with the digital gun deck. In the first instance it took a long time to find. If you can catch the problem with the covers off, the error code refers an A/D problem. But it takes long enough to get the covers off that the symptoms often disappear before you can get in there. I suggest you try replacing that chip and/or the PCB as a means of troubleshooting. Tim Waldron "Kloster, Stephen" on 01/22/2002 10:12:32 AM To: "'Lockhart, Ryan'" , "'linac-eng@plato1.aristotle.net'" cc: (bcc: Timothy J. Waldron/MDACC) Subject: RE: 2100C3 GFIL Hi Ryan, If you remove the cold deck cover during warm-up when you expect this fault will occur, the display should give you a clue to the cause. I would also suggest that you look at the low voltage power supply for the hot deck. We have had a lot of gfil problems caused by a marginal voltage output from this supply. You can measure these voltages at test points on the hot deck filament power supply PCB after, of course, taking all appropriate safety measures for working on the hot deck. Regards, Steve Kloster Kingston Regional Cancer Centre Kingston, Ontario -----Original Message----- From: Lockhart, Ryan [mailto:LockhartR@covhealth.com] Sent: Tuesday, January 22, 2002 9:07 AM To: 'linac-eng@plato1.aristotle.net' Subject: 2100C3 GFIL We're having an intermittant GFIL during morning warmup on our 2100. It starts out as fairly constant, then flashes on every few seconds, then goes away entirely and stays away all day, only to reappear the next morning for warmup. It seems to be temperature sensitive, but which component? I have changed out the power supply board on the gun deck (the one with the 3 toggle switches). FYI, this is a digital gun deck. Thank you for your time and advice. Ryan Lockhart Covenant Medical Center Waterloo, IA --0__=bT7M0JC2fAiRdGYMFxbZcp59HB2VRdW62TVqX6JAIXtaNhhIce2A80Bc Content-type: text/html; name="att1.htm" Content-Disposition: attachment; filename="att1.htm" Content-transfer-encoding: base64 Content-Description: Internet HTML PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDMuMi8vRU4iPg0KPEhUTUw+ DQo8SEVBRD4NCjxNRVRBIEhUVFAtRVFVSVY9IkNvbnRlbnQtVHlwZSIgQ09OVEVOVD0idGV4dC9o dG1sOyBjaGFyc2V0PWlzby04ODU5LTEiPg0KPE1FVEEgTkFNRT0iR2VuZXJhdG9yIiBDT05URU5U PSJNUyBFeGNoYW5nZSBTZXJ2ZXIgdmVyc2lvbiA1LjUuMjY1My4xMiI+DQo8VElUTEU+UkU6IDIx MDBDMyBHRklMPC9USVRMRT4NCjwvSEVBRD4NCjxCT0RZPg0KDQo8UD48Rk9OVCBTSVpFPTI+SGkg Unlhbiw8L0ZPTlQ+DQo8QlI+PEZPTlQgU0laRT0yPklmIHlvdSByZW1vdmUgdGhlIGNvbGQgZGVj ayBjb3ZlciBkdXJpbmcgd2FybS11cCB3aGVuIHlvdSBleHBlY3QgdGhpcyBmYXVsdCB3aWxsIG9j Y3VyLCB0aGUgZGlzcGxheSBzaG91bGQgZ2l2ZSB5b3UgYSBjbHVlIHRvIHRoZSBjYXVzZS4gSSB3 b3VsZCBhbHNvIHN1Z2dlc3QgdGhhdCB5b3UgbG9vayBhdCB0aGUgbG93IHZvbHRhZ2UgcG93ZXIg c3VwcGx5IGZvciB0aGUgaG90IGRlY2suIFdlIGhhdmUgaGFkIGEgbG90IG9mIGdmaWwgcHJvYmxl bXMgY2F1c2VkIGJ5IGEgbWFyZ2luYWwgdm9sdGFnZSBvdXRwdXQgZnJvbSB0aGlzIHN1cHBseS4g WW91IGNhbiBtZWFzdXJlIHRoZXNlIHZvbHRhZ2VzIGF0IHRlc3QgcG9pbnRzIG9uIHRoZSBob3Qg ZGVjayBmaWxhbWVudCBwb3dlciBzdXBwbHkgUENCIGFmdGVyLCBvZiBjb3Vyc2UsIHRha2luZyBh bGwgYXBwcm9wcmlhdGUgc2FmZXR5IG1lYXN1cmVzIGZvciB3b3JraW5nIG9uIHRoZSBob3QgZGVj ay48L0ZPTlQ+PC9QPg0KDQo8UD48Rk9OVCBTSVpFPTI+UmVnYXJkcyw8L0ZPTlQ+DQo8QlI+PEZP TlQgU0laRT0yPlN0ZXZlIEtsb3N0ZXI8L0ZPTlQ+DQo8QlI+PEZPTlQgU0laRT0yPktpbmdzdG9u IFJlZ2lvbmFsIENhbmNlciBDZW50cmU8L0ZPTlQ+DQo8QlI+PEZPTlQgU0laRT0yPktpbmdzdG9u LCBPbnRhcmlvPC9GT05UPg0KPC9QPg0KDQo8UD48Rk9OVCBTSVpFPTI+LS0tLS1PcmlnaW5hbCBN ZXNzYWdlLS0tLS08L0ZPTlQ+DQo8QlI+PEZPTlQgU0laRT0yPkZyb206IExvY2toYXJ0LCBSeWFu IFs8QSBIUkVGPSJtYWlsdG86TG9ja2hhcnRSQGNvdmhlYWx0aC5jb20iPm1haWx0bzpMb2NraGFy dFJAY292aGVhbHRoLmNvbTwvQT5dPC9GT05UPg0KPEJSPjxGT05UIFNJWkU9Mj5TZW50OiBUdWVz ZGF5LCBKYW51YXJ5IDIyLCAyMDAyIDk6MDcgQU08L0ZPTlQ+DQo8QlI+PEZPTlQgU0laRT0yPlRv OiAnbGluYWMtZW5nQHBsYXRvMS5hcmlzdG90bGUubmV0JzwvRk9OVD4NCjxCUj48Rk9OVCBTSVpF PTI+U3ViamVjdDogMjEwMEMzIEdGSUw8L0ZPTlQ+DQo8L1A+DQo8QlI+DQoNCjxQPjxGT05UIFNJ WkU9Mj5XZSdyZSBoYXZpbmcgYW4gaW50ZXJtaXR0YW50IEdGSUwgZHVyaW5nIG1vcm5pbmcgd2Fy bXVwIG9uIG91ciAyMTAwLiZuYnNwOyBJdDwvRk9OVD4NCjxCUj48Rk9OVCBTSVpFPTI+c3RhcnRz IG91dCBhcyBmYWlybHkgY29uc3RhbnQsIHRoZW4gZmxhc2hlcyBvbiBldmVyeSBmZXcgc2Vjb25k cywgdGhlbiBnb2VzPC9GT05UPg0KPEJSPjxGT05UIFNJWkU9Mj5hd2F5IGVudGlyZWx5IGFuZCBz dGF5cyBhd2F5IGFsbCBkYXksIG9ubHkgdG8gcmVhcHBlYXIgdGhlIG5leHQgbW9ybmluZyBmb3I8 L0ZPTlQ+DQo8QlI+PEZPTlQgU0laRT0yPndhcm11cC4mbmJzcDsgSXQgc2VlbXMgdG8gYmUgdGVt cGVyYXR1cmUgc2Vuc2l0aXZlLCBidXQgd2hpY2ggY29tcG9uZW50PyZuYnNwOyBJIGhhdmU8L0ZP TlQ+DQo8QlI+PEZPTlQgU0laRT0yPmNoYW5nZWQgb3V0IHRoZSBwb3dlciBzdXBwbHkgYm9hcmQg b24gdGhlIGd1biBkZWNrICh0aGUgb25lIHdpdGggdGhlIDM8L0ZPTlQ+DQo8QlI+PEZPTlQgU0la RT0yPnRvZ2dsZSBzd2l0Y2hlcykuJm5ic3A7IEZZSSwgdGhpcyBpcyBhIGRpZ2l0YWwgZ3VuIGRl Y2suJm5ic3A7IFRoYW5rIHlvdSBmb3IgeW91ciB0aW1lPC9GT05UPg0KPEJSPjxGT05UIFNJWkU9 Mj5hbmQgYWR2aWNlLjwvRk9OVD4NCjwvUD4NCg0KPFA+PEZPTlQgU0laRT0yPlJ5YW4gTG9ja2hh cnQ8L0ZPTlQ+DQo8QlI+PEZPTlQgU0laRT0yPkNvdmVuYW50IE1lZGljYWwgQ2VudGVyPC9GT05U Pg0KPEJSPjxGT05UIFNJWkU9Mj5XYXRlcmxvbywgSUE8L0ZPTlQ+DQo8L1A+DQoNCjwvQk9EWT4N CjwvSFRNTD4NCg== --0__=bT7M0JC2fAiRdGYMFxbZcp59HB2VRdW62TVqX6JAIXtaNhhIce2A80Bc-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 23 03:50:24 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TDUV-0004aH-00; Wed, 23 Jan 2002 03:50:23 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B09EB1112F2; Wed, 23 Jan 2002 03:34:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id UAA05911 for linac-eng-list; Tue, 22 Jan 2002 20:28:03 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailm2.adhb.govt.nz ([203.97.243.106]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id UAA05904 for ; Tue, 22 Jan 2002 20:27:54 -0600 (CST) Received: from exchange02.ahsl.co.nz (not verified[10.30.2.23]) by mailm2.adhb.govt.nz with MailMarshal (4,0,6,0) id ; Wed, 23 Jan 2002 15:26:26 +1300 Received: by EXCHANGE02 with Internet Mail Service (5.5.2653.19) id ; Wed, 23 Jan 2002 15:18:29 +1300 Message-ID: From: Kerry Clark To: "'linac-eng@plato1.aristotle.net'" Subject: UK salaries Date: Wed, 23 Jan 2002 15:28:33 +1300 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Kerry Clark To: "'linac-eng@plato1.aristotle.net'" Subject: UK salaries Date: Wed, 23 Jan 2002 15:28:33 +1300 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello UK engineers, could you please help me. . If where applying for a job around London (advertised MTO 3/4), what salary should I be asking to start on? All the salary calculators/ cost of living index's I can find on the net vary from 2100 pounds to 25500 pounds, is this a fair wage? I've got a military background with three and half years repairing Varian machines (2 L.E., 4 H.E. - 4 MLC's/ EPI's), currently working as a senior engineer in a hospital environment. Are there any sticky areas I should watch for in contracts? thanks for the help Kerry Kerry Clark Engineering Technician Auckland Hospital Auckland New Zealand 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 23 13:53:41 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TMuL-0001sg-00; Wed, 23 Jan 2002 13:53:41 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D31BE1112F2; Wed, 23 Jan 2002 13:37:17 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id GAA14770 for linac-eng-list; Wed, 23 Jan 2002 06:27:21 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from postman.haukeland.no (postman.haukeland.no [161.4.81.12]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id GAA14766 for ; Wed, 23 Jan 2002 06:27:19 -0600 (CST) Received: (qmail 11444 invoked from network); 23 Jan 2002 12:26:44 -0000 Received: from unknown (HELO alf.ihelse.net) (161.4.3.47) by postman.haukeland.no with SMTP; 23 Jan 2002 12:26:43 -0000 Subject: BBC LA4 1987, Beam alignment drifting. Date: Wed, 23 Jan 2002 11:22:50 +0100 Message-ID: <05B9BD272EEF3040B9DE4BCAFD0432E90D7641@alf.ihelse.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A3F7.E913C218" Thread-Topic: IS BBC LA4 1987, Beam alignment drifting. Thread-Index: AcGj991nif1PpC2RRd2LUOYbzdJXOg== Disposition-Notification-To: "Henrik Stensaker" From: "Henrik Stensaker" content-class: urn:content-classes:message x-mimeole: Produced By Microsoft Exchange V6.0.5762.3 To: X-VNH: Approved Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Subject: BBC LA4 1987, Beam alignment drifting. Date: Wed, 23 Jan 2002 11:22:50 +0100 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A3F7.E913C218" Thread-Topic: IS BBC LA4 1987, Beam alignment drifting. Thread-Index: AcGj991nif1PpC2RRd2LUOYbzdJXOg== Disposition-Notification-To: "Henrik Stensaker" From: "Henrik Stensaker" content-class: urn:content-classes:message x-mimeole: Produced By Microsoft Exchange V6.0.5762.3 To: X-VNH: Approved Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C1A3F7.E913C218 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable BBC LA4 (4MV) 1987, Beam alignment drifting. Anyone out there still having BBC's in service? I have the following strange problem: Intermittently after switching the machine on in the morning, there is very low doserate. It is possible to steer the beam back with E-W and N-S steering pots, and it stays for a while. But after some time it goes back to "normal"???? After that everything is stable for the rest of the day. It is possible to switch the machine off and back on, and the beam is still ok! But it is very exiting to start the machine the next morning! I have checked the currents in the coils, and that seems to be stable. The magnetron is new, and the cathode in the gun is new. The fault was there before changing cathode and magnetron. All parameters concerning HV and gun seem to be ok. Gantry rotation does not influence on the fault, and all cables seem to be ok! I suspect that the beam, for some reason, is changing while the steering currents are stable. Have YOU experienced something like this on the BBC machine???? Thanks in advance! Henrik Stensaker Service Engineer Department of Radiophysics Haukeland Hospital N-5021 Bergen Norway ------_=_NextPart_001_01C1A3F7.E913C218 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable IS BBC LA4 1987, Beam alignment drifting.

BBC = LA4 (4MV) 1987, Beam = alignment drifting.

Anyone out there still having BBC’s = in service?

I = have the following strange problem:

Intermittently = after switching the machine on in the morning, there is very low = doserate.

It is = possible to steer the beam back with E-W and N-S steering pots, and it stays for a = while.

But = after some time it goes back to “normal”????

After = that everything is stable for the rest of the day. = It is possible to switch the machine off and back on, and the beam is = still ok!

But = it is very exiting to start the machine the next morning!

I = have checked the currents = in the coils, and that seems to be stable.

The = magnetron is new, and the cathode in the gun is new.

The = fault was there before changing cathode and = magnetron.

All = parameters concerning HV and gun seem = to be ok.

Gantry rotation does not influence on the fault, and all = cables seem = to be ok!

I = suspect that the beam, = for some reason, is changing while the steering currents = are stable.

Have YOU = experienced something like this on the BBC machine????


Thanks in advance!

Henrik Stensaker

Service Engineer

Department of Radiophysics

Haukeland Hospital

N-5021 Bergen

Norway

------_=_NextPart_001_01C1A3F7.E913C218-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 23 17:22:58 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TQAs-0004oG-00; Wed, 23 Jan 2002 17:22:58 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2FE061112F2; Wed, 23 Jan 2002 17:06:28 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA18431 for linac-eng-list; Wed, 23 Jan 2002 09:47:07 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA18427 for ; Wed, 23 Jan 2002 09:47:00 -0600 (CST) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g0NFkEG24829; Wed, 23 Jan 2002 08:46:14 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.22.247]) by icelus.cancerboard.ab.ca (SendmailServer-1.0.4/8.11.1) with ESMTP id g0NFkFN18169; Wed, 23 Jan 2002 08:46:21 -0700 (MST) Message-ID: <3C4EDA99.122E34E0@cancerboard.ab.ca> Date: Wed, 23 Jan 2002 08:45:29 -0700 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: jouni.keinonen@ksshp.fi Cc: Linac-eng@plato1.aristotle.net Subject: Re: another UDR1/2 problem... References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 23 Jan 2002 08:45:29 -0700 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Accept-Language: en To: jouni.keinonen@ksshp.fi Cc: Linac-eng@plato1.aristotle.net Subject: Re: another UDR1/2 problem... Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The Pulse Length Servo could be causing a soft start for 15X only. Your PV Systems manual should have a "Installation of the PLS2" document. In it are two adjustment procedures. The one you should follow to re-establish your servo operating point is called "Re-Adjustment for PLS2". On QC/PM days we use the "Adjustment Procedure for the PLS2" to check and/or touch up its operation. -- Kurt Knibutat Sr Technical Equipment Officer Tom Baker Cancer Centre (403) 670-1089 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 23 18:41:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TROw-0005O6-00; Wed, 23 Jan 2002 18:41:34 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 11AA41112F2; Wed, 23 Jan 2002 18:25:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA21768 for linac-eng-list; Wed, 23 Jan 2002 11:03:14 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from localhost.localdomain (uihc-mx.uihc.uiowa.edu [129.255.57.31]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA21764 for ; Wed, 23 Jan 2002 11:03:13 -0600 (CST) Received: from uihc-mail.uihc.uiowa.edu (uihc-mail.uihc.uiowa.edu [129.255.242.84]) by localhost.localdomain (8.11.6/8.11.6) with ESMTP id g0NGtJu09593 for ; Wed, 23 Jan 2002 10:55:19 -0600 Received: by uihc-mail.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id ; Wed, 23 Jan 2002 11:02:57 -0600 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24015F7689@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato1.aristotle.net'" Subject: DSPN Date: Wed, 23 Jan 2002 11:02:56 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato1.aristotle.net'" Subject: DSPN Date: Wed, 23 Jan 2002 11:02:56 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi gang, I recently have been traveling alot and when I get back I have a tremendous number of e-mails, so I was inclined to deleate a bunch, I recall seeing alot of buzz about the DSPN interlock, but read none....well.... we are now plagued by it, so could someone sum up the buzz on what was found with the DSPN interlocks?Thanks a bunch Joe Schebler 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 23 18:51:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TRYn-0005R3-00; Wed, 23 Jan 2002 18:51:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 047BB1112F2; Wed, 23 Jan 2002 18:35:18 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA22582 for linac-eng-list; Wed, 23 Jan 2002 11:21:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA22576 for ; Wed, 23 Jan 2002 11:21:10 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA12820; Wed, 23 Jan 2002 11:26:31 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3C4EF113.5BA0F9BE@scf.sk.ca> Date: Wed, 23 Jan 2002 11:21:24 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Linac-Engineers, Listserver" Subject: Elekta SL Ion Chamber Content-Type: multipart/mixed; boundary="------------68CA941E69333D8805584D27" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 23 Jan 2002 11:21:24 -0600 From: Chris Barnardo X-Accept-Language: en To: "Linac-Engineers, Listserver" Subject: Elekta SL Ion Chamber Content-Type: multipart/mixed; boundary="------------68CA941E69333D8805584D27" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------68CA941E69333D8805584D27 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit We are experiencing problems with our Ion Chamber, Dose 1 is drifting. We are interested to find out what service life other centres are getting from their Ion Chambers. We are getting only 2 to 3 years from these expensive chambers. Our machine is running 6x and 18x, and we are using the new design "Graphite" chamber. --------------68CA941E69333D8805584D27 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------68CA941E69333D8805584D27-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 23 19:14:09 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TRuT-0005Xj-00; Wed, 23 Jan 2002 19:14:09 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2D6661112F2; Wed, 23 Jan 2002 18:57:41 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id LAA23602 for linac-eng-list; Wed, 23 Jan 2002 11:42:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from Aphrodite.nki.nl (Aphrodite.nki.nl [192.87.97.4]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA23597 for ; Wed, 23 Jan 2002 11:42:29 -0600 (CST) Received: from Hephaistos.nki.nl (Hephaistos.nki.nl [192.87.97.5]) by Aphrodite.nki.nl (8.9.3+Sun/8.9.3) with SMTP id SAA17618 for ; Wed, 23 Jan 2002 18:42:13 +0100 (MET) Received: FROM peperomia BY Hephaistos.nki.nl ; Wed Jan 23 18:38:42 2002 +0100 From: "Henk vd Gugten" To: "Henrik Stensaker" , Subject: RE: BBC LA4 1987, Beam alignment drifting. Date: Wed, 23 Jan 2002 18:43:40 +0100 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C1A43D.E04D30C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) In-Reply-To: <05B9BD272EEF3040B9DE4BCAFD0432E90D7641@alf.ihelse.net> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Henk vd Gugten" To: "Henrik Stensaker" , Subject: RE: BBC LA4 1987, Beam alignment drifting. Date: Wed, 23 Jan 2002 18:43:40 +0100 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C1A43D.E04D30C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal In-Reply-To: <05B9BD272EEF3040B9DE4BCAFD0432E90D7641@alf.ihelse.net> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0010_01C1A43D.E04D30C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit IS BBC LA4 1987, Beam alignment drifting.Henrik, At NKI/AvL we used to have a BBC LA4 untill 2000. From memory I can suggest to look into the following with respect to this output problem. 1. Does the motorised autotransformer work properly? It sets the primary voltage to the modulator. We have experienced an intermittent fault in the circuit that switches and powers the motor. If this is the case you would expect to see a change in magnetron HT current while your output is low. 2. Is the AFC working properly when output is low in the morning? Success and greetings, Henk Hendrik W. van der Gugten Technical Specialist Radiotherapy Netherlands Cancer Institute Plesmanlaan 121 voice xx31.20.512.2116 1066 CX Amsterdam fax xx31.20.669.1101 the Netherlands email gugten@nki.nl -----Original Message----- From: owner-linac-eng@plato1.aristotle.net [mailto:owner-linac-eng@plato1.aristotle.net]On Behalf Of Henrik Stensaker Sent: Wednesday, January 23, 2002 11:23 To: linac-eng@plato1.aristotle.net Subject: BBC LA4 1987, Beam alignment drifting. BBC LA4 (4MV) 1987, Beam alignment drifting. Anyone out there still having BBC's in service? I have the following strange problem: Intermittently after switching the machine on in the morning, there is very low doserate. It is possible to steer the beam back with E-W and N-S steering pots, and it stays for a while. But after some time it goes back to "normal"???? After that everything is stable for the rest of the day. It is possible to switch the machine off and back on, and the beam is still ok! But it is very exiting to start the machine the next morning! I have checked the currents in the coils, and that seems to be stable. The magnetron is new, and the cathode in the gun is new. The fault was there before changing cathode and magnetron. All parameters concerning HV and gun seem to be ok. Gantry rotation does not influence on the fault, and all cables seem to be ok! I suspect that the beam, for some reason, is changing while the steering currents are stable. Have YOU experienced something like this on the BBC machine???? Thanks in advance! Henrik Stensaker Service Engineer Department of Radiophysics Haukeland Hospital N-5021 Bergen Norway ------=_NextPart_000_0010_01C1A43D.E04D30C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable IS BBC LA4 1987, Beam alignment drifting.
Henrik,
At=20 NKI/AvL we used to have a BBC LA4 untill 2000. From memory I can suggest = to look=20 into the following with respect to this output problem. =
1.=20 Does the motorised autotransformer work properly? It sets the primary = voltage to=20 the modulator. We have experienced an intermittent fault in the = circuit=20 that switches and powers the motor.  If this is the case you would = expect=20 to see a change in magnetron HT current while your output is=20 low.
2.=20 Is the AFC working properly when output is low in the morning?=20
Success and greetings,
Henk
 
 
Hendrik W.=20 van der Gugten      =20        =20        
Technical Specialist = Radiotherapy      =20
Netherlands Cancer=20 Institute   
Plesmanlaan=20 121         voice   xx31.20.512.2116
1066 = CX  =20 Amsterdam              fax      xx31.20.669.1101
the = Netherlands=20               &nbs= p;      =20 email  = gugten@nki.nl     =20
-----Original Message-----
From:=20 owner-linac-eng@plato1.aristotle.net=20 [mailto:owner-linac-eng@plato1.aristotle.net]On Behalf Of = Henrik=20 Stensaker
Sent: Wednesday, January 23, 2002 = 11:23
To:=20 linac-eng@plato1.aristotle.net
Subject: BBC LA4 1987, Beam = alignment=20 drifting.

BBC = LA4 = (4MV) 1987,=20 Beam alignment=20 drifting.

Anyone out there still having BBC’s in=20 service?

I have = the=20 following strange = problem:

Intermittently=20 after switching the machine on in the morning, there is very low=20 doserate.

It is = possible to steer=20 the beam back with E-W = and N-S steering=20 pots, and it stays for a while.

But = after some time it=20 goes back to “normal”????

After = that everything=20 is stable for the rest of the day.=20 It is possible to switch the machine off and back on, and the beam is = still=20 ok!

But it is very exiting to = start the machine=20 the next morning!

I have = checked the=20 currents in = the coils, and=20 that seems to be stable.

The = magnetron is new,=20 and the cathode in the gun is new.

The = fault was there=20 before changing cathode and magnetron.

All = parameters=20 concerning HV and gun seem to be ok.

Gantry = rotation does=20 not influence on the fault, and all cables seem to be ok!

I = suspect that the=20 beam, for some reason, is = changing while the=20 steering currents are stable.

Have YOU experienced something like=20 this=20 on the BBC machine????


Thanks = in=20 advance!

Henrik=20 Stensaker

Service = Engineer

Department of=20 Radiophysics

Haukeland=20 Hospital

N-5021=20 Bergen

Norway

------=_NextPart_000_0010_01C1A43D.E04D30C0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 24 06:55:47 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TcrT-0000at-00; Thu, 24 Jan 2002 06:55:47 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7D2201112F2; Thu, 24 Jan 2002 06:39:09 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id SAA19578 for linac-eng-list; Wed, 23 Jan 2002 18:51:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tomts5-srv.bellnexxia.net (tomts5.bellnexxia.net [209.226.175.25]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA19574 for ; Wed, 23 Jan 2002 18:51:31 -0600 (CST) Received: from on.aibn.com ([64.228.43.5]) by tomts5-srv.bellnexxia.net (InterMail vM.4.01.03.16 201-229-121-116-20010115) with ESMTP id <20020124005130.NLPP3155.tomts5-srv.bellnexxia.net@on.aibn.com> for ; Wed, 23 Jan 2002 19:51:30 -0500 Message-ID: <2956316-22002142421023750@on.aibn.com> X-EM-Version: 6, 0, 1, 0 X-EM-Registration: #00F06206106618006920 X-Priority: 3 Reply-To: infosource@on.aibn.com Organization: InfoSource From: "Barbara Caldwell" To: "linac-eng@plato.aristotle.net" Subject: The United States Healthcare Directory Date: Wed, 23 Jan 2002 20:10:23 -0600 MIME-Version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id SAA19575 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-EM-Version: 6, 0, 1, 0 X-EM-Registration: #00F06206106618006920 X-Priority: 3 Reply-To: infosource@on.aibn.com Organization: InfoSource From: "Barbara Caldwell" To: "linac-eng@plato.aristotle.net" Subject: The United States Healthcare Directory Date: Wed, 23 Jan 2002 20:10:23 -0600 Content-type: text/plain; charset="US-ASCII" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id SAA19575 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk If this information is not relevant to you or your organization, please accept our apologies for taking your time. We are publishers of specialized reports and directories dealing with public affairs. Our new directory, "The United States Healthcare Directory" covers hospitals, nursing homes, government departments, etc. It is used by corporations, associations and governments and is available at a cost of $195. If you are interested in receiving this directory, please provide us with your mailing address. Please visit our website, www.national-directories.com, for information on our other directories and reports. Thank you for your consideration. Please Note: If you do not respond to this message, you will be taken off our list automatically. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 24 10:30:50 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TgDZ-0002Zp-00; Thu, 24 Jan 2002 10:30:49 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 86F761112F3; Thu, 24 Jan 2002 10:14:09 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id DAA03291 for linac-eng-list; Thu, 24 Jan 2002 03:08:08 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA03287 for ; Thu, 24 Jan 2002 03:08:07 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16Tfqy-0007Z3-00; Thu, 24 Jan 2002 09:07:28 +0000 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C4806460005DE0B for linac-eng@plato1.aristotle.net; Thu, 24 Jan 2002 09:07:28 +0000 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C4BCB4E00066E6C for linac-eng@plato1.aristotle.net; Thu, 24 Jan 2002 09:07:28 +0000 X-Internal-ID: 3C4D19F00000FC68 Received: from theta.velindre-tr.wales.nhs.uk (137.11.128.23) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato1.aristotle.net; 24 Jan 2002 09:04:53 +0000 Received: by theta.velindre-tr.wales.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Thu, 24 Jan 2002 09:07:30 -0000 Message-ID: From: Stephen Hayes To: "'linac-eng@plato1.aristotle.net'" Subject: Varian carrousel position pot Date: Thu, 24 Jan 2002 09:07:22 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3C4D19F00000FC68 From: Stephen Hayes To: "'linac-eng@plato1.aristotle.net'" Subject: Varian carrousel position pot Date: Thu, 24 Jan 2002 09:07:22 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Thanks to everyone who responded with suggestions regarding the replacement of the Carrousel Position pot. We managed to do it without removing the motor or chain. First we had to make sure the carrousel pin was in place. To do this we had to release the air pressure and move the carrousel by hand until we could physically push the pin in place. We then tied the chain together using a cable tie. Where the chain winds round the pot then the motor then doubles back very close to itself (about 5cm) you can get a cable tie in there round the two parts of the chain and pull it together sufficiently away from the pot cog. The pot bracket was then removed. The new pot was fitted to the bracket and cog. The 3 small bolts holding the pot to the bracket (not the 2 bolts holding the pot bracket to the motor bracket) were left sufficiently loose to adjust the pot when put back in. Once the bracket was re-attached to the motor bracket then the cable tie around the chain was removed. The pot was adjusted to read 5V with the carrousel pin in place not forgetting to tighten the bolts afterwards. It took several attempts for the controller on the aux electronics catchall board to self calibrate the carrousel postioning before it would work. It didn't all go quite as smoothly as it sounds but I hope this info might be of benefit to others. Steve Hayes S Wales > *Internet: stephen.hayes@Velindre-tr.wales.nhs.uk > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 24 16:17:16 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Tlcq-00074A-00; Thu, 24 Jan 2002 16:17:16 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 398571112F3; Thu, 24 Jan 2002 16:14:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA10203 for linac-eng-list; Thu, 24 Jan 2002 08:42:43 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id IAA10199 for ; Thu, 24 Jan 2002 08:42:41 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA23102; Thu, 24 Jan 2002 08:48:01 -0600 Message-Id: <3C501D07.28B4C126@scf.sk.ca> Date: Thu, 24 Jan 2002 08:41:11 -0600 From: Scot Thiesson X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en,pdf Mime-Version: 1.0 To: Stephen Hayes Cc: "'linac-eng@plato1.aristotle.net'" Subject: Re: Varian carrousel position pot References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 24 Jan 2002 08:41:11 -0600 From: Scot Thiesson X-Accept-Language: en,pdf To: Stephen Hayes Cc: "'linac-eng@plato1.aristotle.net'" Subject: Re: Varian carrousel position pot Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk If the chain is binding anywhere link to link the calibrate cycle will be difficult at best. Closely observe the movement of the chain as it cycles around the carrousel. If it is binding anywhere you will see a jerking chain tensioner. This motion, if too excessive, can cause calibration failures in the morning. Just something to watch for. Scot. Stephen Hayes wrote: > Thanks to everyone who responded with suggestions regarding the replacement > of the Carrousel Position pot. > > We managed to do it without removing the motor or chain. First we had to > make sure the carrousel pin was in place. To do this we had to release the > air pressure and move the carrousel by hand until we could physically push > the pin in place. We then tied the chain together using a cable tie. Where > the chain winds round the pot then the motor then doubles back very close to > itself (about 5cm) you can get a cable tie in there round the two parts of > the chain and pull it together sufficiently away from the pot cog. The pot > bracket was then removed. The new pot was fitted to the bracket and cog. The > 3 small bolts holding the pot to the bracket (not the 2 bolts holding the > pot bracket to the motor bracket) were left sufficiently loose to adjust the > pot when put back in. Once the bracket was re-attached to the motor bracket > then the cable tie around the chain was removed. The pot was adjusted to > read 5V with the carrousel pin in place not forgetting to tighten the bolts > afterwards. It took several attempts for the controller on the aux > electronics catchall board to self calibrate the carrousel postioning before > it would work. > > It didn't all go quite as smoothly as it sounds but I hope this info might > be of benefit to others. > > Steve Hayes > S Wales > > > *Internet: stephen.hayes@Velindre-tr.wales.nhs.uk > > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 24 17:05:48 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16TmNo-0007T9-00; Thu, 24 Jan 2002 17:05:48 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7A1AD1112F5; Thu, 24 Jan 2002 17:02:57 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA13039 for linac-eng-list; Thu, 24 Jan 2002 09:35:54 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id JAA13035 for ; Thu, 24 Jan 2002 09:35:52 -0600 (CST) From: per.zetterberg@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Thu, 24 Jan 2002 16:35:30 +0100 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Thu, 24 Jan 2002 16:35:30 +0100 Message-ID: <6706632E2918D311824B00A0C94BA1D8018D1B52@exchange2.orebroll.se> To: linac-eng@plato1.aristotle.net Subject: IPSN Date: Thu, 24 Jan 2002 16:35:26 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA13036 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: per.zetterberg@orebroll.se To: linac-eng@plato1.aristotle.net Subject: IPSN Date: Thu, 24 Jan 2002 16:35:26 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA13036 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi group, Several times per day now (the first fault starting to occur early December last year), treatments are interrupted by IPSN interlocks due to gantry and collimator rotation readings drifting away a bit, but there is never any actual movement on either the gantry or the collimator. And this morning, for the first time, I saw the collimator PRO drifting as much as 2-3 degrees away from zero before any treatment was initiated (the actual position of the collimator was zero all the time). After a few minutes the Coll Rtn PRO got back to zero without any of us doing anything. Amazing. During fault finding today, I could not get the fault back. I checked on the PS for Coll and Gty (about +/- 11Vdc and no drifting). The ADC self test seems to be stable ('09 04' on the hex window). I'm stuck. Any ideas, please! The pots? The PS? Regards, Per Zetterberg, Örebro, Sweden Per Zetterberg Medicinsk Teknik Universitetssjukhuset, Örebro 701 85 Örebro tel +46-(0)19-6021369 Email: per.zetterberg@orebroll.se 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 09:45:42 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U1zS-0000WX-00; Fri, 25 Jan 2002 09:45:42 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7426C112D59; Fri, 25 Jan 2002 06:16:53 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA01783 for linac-eng-list; Thu, 24 Jan 2002 22:55:54 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.iinet.net.au (symphony-01.iinet.net.au [203.59.3.33]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA01779 for ; Thu, 24 Jan 2002 22:55:52 -0600 (CST) Received: (qmail 31450 invoked by uid 666); 25 Jan 2002 04:55:45 -0000 Received: from unknown (HELO procbms) (203.59.112.157) by mail.iinet.net.au with SMTP; 25 Jan 2002 04:55:45 -0000 Date: Fri, 25 Jan 2002 12:52:55 +0800 From: Ron Kimber To: "Linac-Engineers, Listserver" Subject: Re: Elekta SL Ion Chamber Message-Id: <20020125125255.5674a254.procbms@iinet.net.au> In-Reply-To: <3C4EF113.5BA0F9BE@scf.sk.ca> References: <3C4EF113.5BA0F9BE@scf.sk.ca> X-Mailer: Sylpheed version 0.7.0 (GTK+ 1.2.7; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 25 Jan 2002 12:52:55 +0800 From: Ron Kimber To: "Linac-Engineers, Listserver" Subject: Re: Elekta SL Ion Chamber In-Reply-To: <3C4EF113.5BA0F9BE@scf.sk.ca> Content-Type: text/plain; charset=US-ASCII Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Chris and the List. About 18months ago we replaced all three of our SL ion chambers with the new type. These are graphite but with the spacers now made of ceramic and not aluminium (or so I am told, haven't had one to pull apart yet). We used to get only 12 months or less from the earlier chambers (and I do mean the graphite type) so your 2-3 years sounds good to me! We have had only one incident of dosimetry shift of any significance in the past 18months. (Now how do you change a chamber again???) That occured only just last week and saw a change of 2% in Channel 1 only. We had a high humidity period but also we had a loss of water cooling right prior to the shift. We have recalibrated and will monitor the result for a while before replacing the chamber. The result so far is fine. I have heard that even the new "ceramic" chambers can show a humidity response but to date the above is the only possible case I have seen. I have been very pleased to date that we haven't had to fight with chambers as we used to. Maybe we have just been lucky but I am hopeful as always. Look forward to any other feedback on this one. regards to all Ron Kimber Perth Radiation Oncology Centre On Wed, 23 Jan 2002 11:21:24 -0600 Chris Barnardo wrote: > We are experiencing problems with our Ion Chamber, Dose 1 is > drifting. > > We are interested to find out what service life other centres are > getting from their Ion Chambers. We are getting only 2 to 3 years from > these expensive chambers. Our machine is running 6x and 18x, and we are > using the new design "Graphite" chamber. > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 09:45:46 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U1zW-0000Xq-00; Fri, 25 Jan 2002 09:45:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 84FFF1105E6; Thu, 24 Jan 2002 21:10:45 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA28545 for linac-eng-list; Thu, 24 Jan 2002 13:48:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.calypsomedical.com (r243-47-dsl.sea.lightrealm.net [216.122.47.243]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA28538 for ; Thu, 24 Jan 2002 13:48:27 -0600 (CST) Message-ID: <4BCA7500D4C0D4118ECB00B0D079558A1D8C32@MAIN> From: Andy Silber To: "'linac-eng@plato1.aristotle.net'" Subject: Couch Encoders Date: Thu, 24 Jan 2002 11:37:11 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Andy Silber To: "'linac-eng@plato1.aristotle.net'" Subject: Couch Encoders Date: Thu, 24 Jan 2002 11:37:11 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I'm looking for some information on the couch encoders. How good are they? Are they stable? Are they accurate? How often have you walked into a chamber and they weren't even working? Thanks, Andy Silber 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 09:45:52 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U1zc-0000Yx-00; Fri, 25 Jan 2002 09:45:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 317301105F2; Thu, 24 Jan 2002 21:46:33 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA01796 for linac-eng-list; Thu, 24 Jan 2002 14:27:05 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from chs-exchsv2.covhealth.com (exchangesvr.covhealth.com [207.165.234.87]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA01792 for ; Thu, 24 Jan 2002 14:27:04 -0600 (CST) Received: by CHS-EXCHSV2 with Internet Mail Service (5.5.2653.19) id ; Thu, 24 Jan 2002 14:27:03 -0600 Message-ID: <293B6F21E62CD411BEC400508BD681B2414BAE@CHS-EXCHSV2> From: "Lockhart, Ryan" To: "'linac-eng@plato1.aristotle.net'" Subject: 2100C3 GFIL thanks Date: Thu, 24 Jan 2002 14:27:00 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lockhart, Ryan" To: "'linac-eng@plato1.aristotle.net'" Subject: 2100C3 GFIL thanks Date: Thu, 24 Jan 2002 14:27:00 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Thank you to everyone who gave me input on this problem. This morning I changed out the Hot Deck Filament Power Supply and that cured it. I don't get a lot of exposure to these machines with my other duties. But when they're down, I'm expected to come up with the solution. It's a big help to have all of you with years of experience to call upon. Thanks again. Ryan Lockhart Covenant Medical Center Waterloo, IA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 09:45:53 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U1zd-0000ZE-00; Fri, 25 Jan 2002 09:45:53 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 61509112D4E; Fri, 25 Jan 2002 02:23:16 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id TAA19783 for linac-eng-list; Thu, 24 Jan 2002 19:01:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ccotrust.co.uk (marvin.ccotrust.co.uk [194.217.10.246]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA19779 for ; Thu, 24 Jan 2002 19:01:31 -0600 (CST) Received: by firewall1.ccotrust.co.uk id <535>; Fri, 25 Jan 2002 00:13:03 +0000 Message-Id: <02Jan25.001303gmt.535@firewall1.ccotrust.co.uk> From: Richard Clements To: "'Chris Barnardo'" , "Linac-Engineers, Listserver" Subject: RE: Elekta SL Ion Chamber Date: Thu, 24 Jan 2002 08:46:05 +0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.0.1460.8) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Richard Clements To: "'Chris Barnardo'" , "Linac-Engineers, Listserver" Subject: RE: Elekta SL Ion Chamber Date: Thu, 24 Jan 2002 08:46:05 +0000 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The ion chambers in SL series linacs are unsealed and are suceptible to high humidity. Some rooms/centres have more problems than others which suggests a local environmental effect. As a preventative measure, I recommend installing a dehumidifier. Even in an air conditioned, open bunker, a cheap domestic dehumidifier can make a difference & they're a lot less hassle & expense to fit than an ion chamber. Others on the list (Ron Kimber) have recommended gently blowing dry nitorgen around the chamber connector until the leak stops. I've never tried it, but it may be the quickest way of getting running again. Make sure it really is the chamber first as the dose cards can cause a leak. Swap the connectors around & see it the leak moves. Fingerprints on the chamber PCBs are also reported to cause leakage, and could explain variation between centres. Be careful when handling them. Once a fingerprint is etched in, its a new chamber. Make sure you get the dosimetry checked after any repairs. Richard Clements Clatterbridge Centre for Oncology Bebington Wirral Merseyside. CH63 4JY Tel: (+44) 151 334 1155 ext 4168 Fax: (+44) 151 482 7860 mailto:richardc@ccotrust.co.uk > -----Original Message----- > From: Chris Barnardo [SMTP:cbarnardo@scf.sk.ca] > Sent: Wednesday, January 23, 2002 5:21 PM > To: Linac-Engineers, Listserver > Subject: Elekta SL Ion Chamber > > We are experiencing problems with our Ion Chamber, Dose 1 is > drifting. > > We are interested to find out what service life other centres are > getting from their Ion Chambers. We are getting only 2 to 3 years from > these expensive chambers. Our machine is running 6x and 18x, and we are > using the new design "Graphite" chamber. > << File: Card for Chris Barnardo >> 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 10:58:04 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U37U-0001nF-00; Fri, 25 Jan 2002 10:58:04 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id ED1BD1112F3; Fri, 25 Jan 2002 10:54:57 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id DAA06166 for linac-eng-list; Fri, 25 Jan 2002 03:24:00 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from test-webgate.gstt.sthames.nhs.uk (hide227.nhs.uk [195.107.47.227]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA06162 for ; Fri, 25 Jan 2002 03:23:56 -0600 (CST) From: Richard.Newby@gstt.sthames.nhs.uk Received: from ex1.gstt.sthames.nhs.uk (unverified) by test-webgate.gstt.sthames.nhs.uk (Content Technologies SMTPRS 4.2.1) with ESMTP id for ; Fri, 25 Jan 2002 09:28:12 +0000 Received: by ex1.gstt.sthames.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Fri, 25 Jan 2002 09:24:36 -0000 Message-ID: <93BFD1F388FBD511BDCE00508BBD1F40129241@ex4.gstt.sthames.nhs.uk> To: linac-eng@plato1.aristotle.net Subject: RE: Elekta SL Ion Chamber Date: Fri, 25 Jan 2002 09:22:35 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Richard.Newby@gstt.sthames.nhs.uk To: linac-eng@plato1.aristotle.net Subject: RE: Elekta SL Ion Chamber Date: Fri, 25 Jan 2002 09:22:35 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk To back up what Richard is saying it is good policy to always wear rubber gloves when handling these ion chambers to prevent fingerprints - they do shorten the life of the ion chambers. Thanks for the tip on the dehumidifier. Rick -----Original Message----- From: Richard Clements [mailto:RichardC@ccotrust.co.uk] Sent: 24 January 2002 08:46 To: 'Chris Barnardo'; Linac-Engineers, Listserver Subject: RE: Elekta SL Ion Chamber The ion chambers in SL series linacs are unsealed and are suceptible to high humidity. Some rooms/centres have more problems than others which suggests a local environmental effect. As a preventative measure, I recommend installing a dehumidifier. Even in an air conditioned, open bunker, a cheap domestic dehumidifier can make a difference & they're a lot less hassle & expense to fit than an ion chamber. Others on the list (Ron Kimber) have recommended gently blowing dry nitorgen around the chamber connector until the leak stops. I've never tried it, but it may be the quickest way of getting running again. Make sure it really is the chamber first as the dose cards can cause a leak. Swap the connectors around & see it the leak moves. Fingerprints on the chamber PCBs are also reported to cause leakage, and could explain variation between centres. Be careful when handling them. Once a fingerprint is etched in, its a new chamber. Make sure you get the dosimetry checked after any repairs. Richard Clements Clatterbridge Centre for Oncology Bebington Wirral Merseyside. CH63 4JY Tel: (+44) 151 334 1155 ext 4168 Fax: (+44) 151 482 7860 mailto:richardc@ccotrust.co.uk > -----Original Message----- > From: Chris Barnardo [SMTP:cbarnardo@scf.sk.ca] > Sent: Wednesday, January 23, 2002 5:21 PM > To: Linac-Engineers, Listserver > Subject: Elekta SL Ion Chamber > > We are experiencing problems with our Ion Chamber, Dose 1 is > drifting. > > We are interested to find out what service life other centres are > getting from their Ion Chambers. We are getting only 2 to 3 years from > these expensive chambers. Our machine is running 6x and 18x, and we are > using the new design "Graphite" chamber. > << File: Card for Chris Barnardo >> ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 14:14:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U6Bd-0003ch-00; Fri, 25 Jan 2002 14:14:34 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 746461112F5; Fri, 25 Jan 2002 14:11:25 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA08626 for linac-eng-list; Fri, 25 Jan 2002 06:41:08 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA08622 for ; Fri, 25 Jan 2002 06:41:06 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16U5ee-00005e-00; Fri, 25 Jan 2002 12:40:28 +0000 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C4806460007E259 for linac-eng@plato.aristotle.net; Fri, 25 Jan 2002 12:40:28 +0000 Received: from mailsweeper.DMZ (194.189.32.135) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C513A9C0000493A for linac-eng@plato.aristotle.net; Fri, 25 Jan 2002 12:40:28 +0000 Received: from mail.suht.swest.nhs.uk (unverified) by mailsweeper.DMZ (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Fri, 25 Jan 2002 12:41:34 +0000 Received: from SGH-Message_Server by mail.suht.swest.nhs.uk with Novell_GroupWise; Fri, 25 Jan 2002 12:40:27 +0000 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Fri, 25 Jan 2002 12:40:12 +0000 From: "John McKechnie" To: Subject: Oldelft Simulator Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id GAA08623 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 25 Jan 2002 12:40:12 +0000 From: "John McKechnie" To: Subject: Oldelft Simulator Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id GAA08623 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We at the Royal Southants have an old Oldelft Simulator which we would like to dispose of. I'm told that neither the Generator nor the II are functioning! Would anyone like to take it off our hands? Perhaps there may be some parts that someone could use as spares(?) If not, does anyone know of a company who would remove it for us, preferably in the UK. Thanks, John John McKechnie Head of Radiotherapy Electronics Wessex Radiotherapy Centre Royal Southants Hospital Brintons Terrace (Off St. Mary's Road) Southampton SO4 OYG Tel. 023 8082 5708 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please Delete the E-mail and contact the Southampton University Hospitals NHS Trust Helpdesk on:- 023 80796000. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 14:19:22 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U6GI-0003du-00; Fri, 25 Jan 2002 14:19:22 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 82D9C1112F3; Fri, 25 Jan 2002 14:16:13 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA08759 for linac-eng-list; Fri, 25 Jan 2002 06:46:35 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA08753 for ; Fri, 25 Jan 2002 06:46:34 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16U5k2-0006jX-00; Fri, 25 Jan 2002 12:46:02 +0000 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C4806460007E53F for linac-eng@plato.aristotle.net; Fri, 25 Jan 2002 12:46:02 +0000 Received: from mailsweeper.DMZ (194.189.32.135) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C4BCB4E000914B6 for linac-eng@plato.aristotle.net; Fri, 25 Jan 2002 12:46:02 +0000 Received: from mail.suht.swest.nhs.uk (unverified) by mailsweeper.DMZ (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Fri, 25 Jan 2002 12:47:08 +0000 Received: from SGH-Message_Server by mail.suht.swest.nhs.uk with Novell_GroupWise; Fri, 25 Jan 2002 12:46:02 +0000 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Fri, 25 Jan 2002 12:45:33 +0000 From: "John McKechnie" To: Subject: Philips (Elekta) 75/5 TCT's Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id GAA08754 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 25 Jan 2002 12:45:33 +0000 From: "John McKechnie" To: Subject: Philips (Elekta) 75/5 TCT's Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id GAA08754 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello again, We're having a bit of a clearout! We have 2 of the above Treatment control terminals going free to anyone who would like them. They were both in perfect working order when they were removed from service (approximately 6 years ago) when we upgraded to VS3. All we ask is that the new owner arranges collection. Regards, John. John McKechnie Head of Radiotherapy Electronics Wessex Radiotherapy Centre Royal Southants Hospital Brintons Terrace (Off St. Mary's Road) Southampton SO4 OYG Tel. 023 8082 5708 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please Delete the E-mail and contact the Southampton University Hospitals NHS Trust Helpdesk on:- 023 80796000. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 16:32:11 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U8Kp-0004dN-00; Fri, 25 Jan 2002 16:32:11 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2ABDC1112F3; Fri, 25 Jan 2002 16:28:57 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA16821 for linac-eng-list; Fri, 25 Jan 2002 08:49:35 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.healthlink.on.ca (ns.mtsinai.on.ca [205.211.160.10] (may be forged)) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA16817 for ; Fri, 25 Jan 2002 08:49:34 -0600 (CST) Received: from zombie.clinphys.pmh.toronto.on.ca ([192.168.1.24]) by smtp.healthlink.on.ca (Post.Office MTA v3.5.3 release 223 ID# 0-0U10L2S100V35) with ESMTP id ca for ; Fri, 25 Jan 2002 09:51:28 -0500 Received: by zombie.clinphys.pmh.toronto.on.ca with Internet Mail Service (5.5.2650.21) id ; Fri, 25 Jan 2002 09:48:59 -0500 Message-ID: From: "Feuerstake, Tom" To: "Linac Engineers (E-mail)" Subject: RE: Elekta SL Ion Chamber Date: Fri, 25 Jan 2002 09:48:53 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Feuerstake, Tom" To: "Linac Engineers (E-mail)" Subject: RE: Elekta SL Ion Chamber Date: Fri, 25 Jan 2002 09:48:53 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We have four of these Linacs here and seem to go through chambers every once in a while. Two to three years sounds about right from our experience. The most common failure mode is a leaky chamber- one of the dose- counters starts to count on its own, without beam. Not much trouble otherwise with flatness or dose errors. Regards, Tom Feuerstake PMH Toronto -----Original Message----- From: Chris Barnardo [SMTP:cbarnardo@scf.sk.ca] Sent: Wednesday, January 23, 2002 12:21 PM To: Linac-Engineers, Listserver Subject: Elekta SL Ion Chamber We are experiencing problems with our Ion Chamber, Dose 1 is drifting. We are interested to find out what service life other centres are getting from their Ion Chambers. We are getting only 2 to 3 years from these expensive chambers. Our machine is running 6x and 18x, and we are using the new design "Graphite" chamber. << File: Card for Chris Barnardo >> 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 17:18:59 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U947-0004ou-00; Fri, 25 Jan 2002 17:18:59 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 099C21112F1; Fri, 25 Jan 2002 17:15:48 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id JAA21333 for linac-eng-list; Fri, 25 Jan 2002 09:46:51 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from cenabastms1.cenabast.cl (Cust115.tie.cl [200.54.145.115]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA21327 for ; Fri, 25 Jan 2002 09:46:48 -0600 (CST) Date: Fri, 25 Jan 2002 09:46:48 -0600 (CST) Message-Id: <200201251546.JAA21327@plato1.aristotle.net> Received: from mail.email.si (172.20.70.2 [172.20.70.2]) by cenabastms1.cenabast.cl with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id DMSNH941; Fri, 25 Jan 2002 06:10:31 -0300 Reply-To: From: "ingeniosor@email.si" To: "8672@earthlink.net" <8672@earthlink.net> Subject: OLD FILES MIME-Version: 1.0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 25 Jan 2002 09:46:48 -0600 (CST) Reply-To: From: "ingeniosor@email.si" To: "8672@earthlink.net" <8672@earthlink.net> Subject: OLD FILES Content-Type: text/html; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk
For Immediate Release

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    Certain statements contained in this news release may be forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. These statements may be identified by such terms as "expect", "believe", "may", "will", and "intend" or similar terms. We are NOT a registered investment advisor or a broker dealer. This is NOT an offer to buy or sell securities. No recommendation that the securities of the companies profiled should be purchased, sold or held by individuals or entities that learn of the profiled companies. We were paid $27,000 in cash by a third party to publish this report. Investing in companies profiled is high-risk and use of this information is for reading purposes only. If anyone decides to act as an investor, then it will be that investor's sole risk. Investors are advised NOT to invest without the proper advisement from an attorney or a registered financial broker. Do not rely solely on the information presented, do additional independent research to form your own opinion and decision regarding investing in the profiled companies. Be advised that the purchase of such high-risk securities may result in the loss of your entire investment. The owners of this publication may already own free trading shares in CBYI and may immediately sell all or a portion of these shares into the open market at or about the time this report is published.  Factual statements are made as of the date stated and are subject to change without notice.  Not intended for recipients or residents of CA,CO,CT,DE,ID, IL,IA,LA,MO,NV,NC,OK,OH,PA,RI,TN,VA,WA,WV,WI. Void where prohibited. Copyright c 2001

    ****** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 17:56:23 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16U9eJ-0004uB-00; Fri, 25 Jan 2002 17:56:23 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9F9C71112F1; Fri, 25 Jan 2002 17:53:11 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA27315 for linac-eng-list; Fri, 25 Jan 2002 10:29:41 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m05.mx.aol.com (imo-m05.mx.aol.com [64.12.136.8]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA27306 for ; Fri, 25 Jan 2002 10:29:35 -0600 (CST) From: PTORTIZ@aol.com Received: from PTORTIZ@aol.com by imo-m05.mx.aol.com (mail_out_v31_r1.26.) id c.3b.21160b9a (5717); Fri, 25 Jan 2002 11:28:58 -0500 (EST) Received: from web44.aolmail.aol.com (web44.aolmail.aol.com [205.188.161.5]) by air-id04.mx.aol.com (v82.22) with ESMTP id MAILINID410-0125112858; Fri, 25 Jan 2002 11:28:58 -0500 Date: Fri, 25 Jan 2002 11:28:58 EST Subject: Morning Checkout Logs To: Cc: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Mailer: Unknown (No Version) Message-ID: <3b.21160b9a.2982e1ca@aol.com> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: PTORTIZ@aol.com Date: Fri, 25 Jan 2002 11:28:58 EST Subject: Morning Checkout Logs To: Cc: Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Recently our Varian Service Manager requested we review Morning Checkout Logs every morning and Event Logs every evening to assist in reducing equipment down time. We had some hardware failures of original parts on an 8 year old 2300CD that is in use 12-16 hours per day. These failures occured over a 3 month period. We have been reviewing the Event Logs daily for years and have periodically reviewed batches of MC Logs. Have any of you come up with a scheme to import MC Logs into a spreadsheet for the purpose of trending. If so was the information useful to you? Paul Ortiz 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Jan 25 18:36:20 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16UAGx-0004yr-00; Fri, 25 Jan 2002 18:36:20 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 809F01112F1; Fri, 25 Jan 2002 18:33:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA00926 for linac-eng-list; Fri, 25 Jan 2002 11:09:49 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA00921 for ; Fri, 25 Jan 2002 11:09:48 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato1.aristotle.net [204.233.139.43]) with SMTP; 25 Jan 2002 17:03:05 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Fri, 25 Jan 2002 09:06:50 -0800 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato1.aristotle.net'" Subject: Follow-up on MLC fault caused by jaw speed Date: Fri, 25 Jan 2002 09:08:32 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato1.aristotle.net'" Subject: Follow-up on MLC fault caused by jaw speed Date: Fri, 25 Jan 2002 09:08:32 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Thanks very much for all the input on the subject of the MLC fault after a dynamic wedge treatment on the Varian 2100. And yes, the fault is asserted with the MLC is parked so it has nothing to do with the secondary FB for the carriages or the leaves. The problem is simply that one jaw will always be a little faster than the other when going symmetrical from a closed asymmetrical position and the software for the Millenium MLC monitors the distance between these jaws which of course never mattered prior to the MLC installation. Anyway, Varian has contacted me and said an engineer from the factory will follow up with information and/or fix. I will let everyone know when I get any information. Sooooo .. stay tuned. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Jan 26 12:24:06 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16UQwH-000612-00; Sat, 26 Jan 2002 12:24:05 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 54D4F1112F1; Sat, 26 Jan 2002 12:19:49 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id EAA28861 for linac-eng-list; Sat, 26 Jan 2002 04:57:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from holyrood.ed.ac.uk (holyrood.ed.ac.uk [129.215.16.14]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA28857 for ; Sat, 26 Jan 2002 04:57:31 -0600 (CST) Received: from lomond2 (lomond2.onc.ed.ac.uk [129.215.140.70]) by holyrood.ed.ac.uk (8.8.7/8.8.7) with SMTP id KAA04478; Sat, 26 Jan 2002 10:57:29 GMT Message-ID: <004e01c1a658$430309d0$468cd781@lomond2.onc.ed.ac.uk> From: "Hamish Porter" To: , Cc: Subject: Re: Morning Checkout Logs Date: Sat, 26 Jan 2002 10:44:04 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hamish Porter" To: , Cc: Subject: Re: Morning Checkout Logs Date: Sat, 26 Jan 2002 10:44:04 -0000 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We fairly routnely import MC logs and Dynalogs into spreadsheets for analysis. The error logs are copied but are looked at with the Varian communications software on an off-line computer as we do not have the information to interpret all the codes in the event logs. Monitoring the dynalogs has proved useful. >From : Hamish Porter Consultant Physicist Oncology Physics Department Edinburgh Cancer Centre Western General Hospital Edinburgh EH4 2XU 0131-537-2254 0131-537-1092 (fax) hporter@holyrood.ed.ac.uk -----Original Message----- From: PTORTIZ@aol.com To: linac-eng@plato1.aristotle.net Cc: ortipa@samc.com Date: 25 January 2002 17:42 Subject: Morning Checkout Logs >Recently our Varian Service Manager requested we review Morning Checkout Logs every morning and Event Logs every evening to assist in reducing equipment down time. >We had some hardware failures of original parts on an 8 year old 2300CD that is in use 12-16 hours per day. These failures occured over a 3 month period. >We have been reviewing the Event Logs daily for years and have periodically reviewed batches of MC Logs. >Have any of you come up with a scheme to import MC Logs into a spreadsheet for the purpose of trending. If so was the information useful to you? > > Paul Ortiz 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 28 09:44:58 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16V7PO-0001pt-00; Mon, 28 Jan 2002 09:44:58 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F22521112F3; Mon, 28 Jan 2002 09:40:52 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id UAA11325 for linac-eng-list; Sun, 27 Jan 2002 20:50:44 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.mx.voyager.net (mail5.mx.voyager.net [216.93.66.204]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA11320 for ; Sun, 27 Jan 2002 20:50:42 -0600 (CST) Received: from thunderbird (d119.as0.stjh.mi.voyager.net [209.153.161.120]) by mail5.mx.voyager.net (8.11.6/8.10.2) with SMTP id g0S2ocv54264; Sun, 27 Jan 2002 21:50:38 -0500 (EST) Message-ID: <002f01c1a7a6$9af8f060$78a199d1@thunderbird> From: "Jeff Cressman" To: , References: <20.2277f11e.297b2eb4@aol.com> Subject: Re: Dynamic MLC problems Date: Sun, 27 Jan 2002 21:50:53 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002C_01C1A77C.B1736E80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Jeff Cressman" To: , Subject: Re: Dynamic MLC problems Date: Sun, 27 Jan 2002 21:50:53 -0500 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002C_01C1A77C.B1736E80" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_002C_01C1A77C.B1736E80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ron, I thought I'd throw in my 2 cents. When you get an MLC interlock many = times if you hit the on your MLC CONTROLLER computer's = keyboard more information will be displayed on the CONTROLLER computer's = monochrome monitor. Usually will tell you which motor or carriage is = causing the interlock. I'd be very interested in knowing what you find out to be the problem. = We're getting Dynamic IMRT for our 80 leaf MLC in just a few weeks. Good Luck, Jeff Cressman Sparrow Regional Cancer Center Lansing, Michigan ----- Original Message -----=20 From: Accelr8torButchr@aol.com=20 To: Linac-eng@plato1.aristotle.net=20 Sent: Saturday, January 19, 2002 3:19 PM Subject: Dynamic MLC problems Have an interesting problem on a 21EX with 80 leaf MLC. When running = Dynamic treatments the machine intermittently shuts down with a MLC = fault. Hitting "ENTER" clears this fault and the treatment can = continue. I found that the MLC fault is caused by "Controller I/L = -Secondary position." I believe the problem is a flaky leaf motor = encoder but I'm not sure how to find which one. I've changed the SFB = PCB's & cleaned all leaves. There are no slow motors as far as I can = tell. I guess I could change all 80 motors. :)=20 Any suggestions would be appreciated.=20 Thanks,=20 Ron=20 ------=_NextPart_000_002C_01C1A77C.B1736E80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Ron,
     
    I thought I'd throw in my 2 = cents.  When you=20 get an MLC interlock many times if you hit the <space bar> on your = MLC=20 CONTROLLER computer's keyboard more information will be displayed = on the=20 CONTROLLER computer's monochrome monitor.  Usually will tell you = which=20 motor or carriage is causing the interlock.
     
    I'd be very interested in knowing what = you find out=20 to be the problem.  We're getting Dynamic IMRT for our 80 leaf MLC = in just=20 a few weeks.
     
    Good Luck,
     
    Jeff Cressman
    Sparrow Regional Cancer = Center
    Lansing, Michigan
    ----- Original Message -----
    From:=20     Accelr8torButchr@aol.com =
    To: Linac-eng@plato1.aristotle= .net=20
    Sent: Saturday, January 19, = 2002 3:19=20 PM
    Subject: Dynamic MLC = problems

    Have an = interesting=20 problem on a 21EX with 80 leaf MLC. When running Dynamic treatments = the=20 machine intermittently shuts down with a MLC fault.  Hitting = "ENTER"=20 clears this fault and the treatment can continue.  I found that = the MLC=20 fault is caused by "Controller I/L -Secondary position."  I = believe the=20 problem is a flaky leaf motor encoder but I'm not sure how to find = which one.=20  I've changed the SFB PCB's & cleaned all leaves. There are = no slow=20 motors as far as I can tell.  I guess I could change all 80 = motors. :)=20

    Any suggestions would be appreciated.
    Thanks, =
    Ron    =20     ------=_NextPart_000_002C_01C1A77C.B1736E80-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 28 22:22:24 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VJEN-0006D8-00; Mon, 28 Jan 2002 22:22:24 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 627FB1112F1; Mon, 28 Jan 2002 22:18:08 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA09357 for linac-eng-list; Mon, 28 Jan 2002 14:57:53 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA09353 for ; Mon, 28 Jan 2002 14:57:49 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA10401 for ; Tue, 29 Jan 2002 09:51:21 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Tue, 29 Jan 2002 09:57:08 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 29 Jan 2002 09:57:06 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 29 Jan 2002 09:56:53 +1300 From: "Dave Pinchin" To: Subject: Re: (no subject) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id OAA09354 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 29 Jan 2002 09:56:53 +1300 From: "Dave Pinchin" To: Subject: Re: (no subject) Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id OAA09354 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day, We have a 'freeware' programme that gathers morning check files from a 2100, stuffs them onto a floppy, and gently massages them into a Microsoft(R) Excel(R) spreadsheet. We have found it good at this site and several others on the list have also found it beneficial. Both in preventative analysis and actual fault diagnosis. If you (or any others on the list) want a copy I will gladly email it. Proviso is. Product is NOT to be SOLD except for media costs etc. :D >>> 26/01/02 05:45:09 >>> Recently our Varian Service Manager requested we review Morning Checkout Logs every morning and Event Logs every evening to assist in reducing equipment down time. We had some hardware failures of original parts on an 8 year old 2300CD that is in use 12-16 hours per day. These failures occured over a 3 month period. We have been reviewing the Event Logs daily for years and have periodically reviewed batches of MC Logs. Have any of you come up with a scheme to import MC Logs into a spreadsheet for the purpose of trending. If so was the information useful to you? Paul Ortiz ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 28 22:34:49 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VJQP-0006Du-00; Mon, 28 Jan 2002 22:34:49 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 91EAA1112F1; Mon, 28 Jan 2002 22:30:33 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA26510 for linac-eng-list; Mon, 28 Jan 2002 09:13:38 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id JAA26503 for ; Mon, 28 Jan 2002 09:13:34 -0600 (CST) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Mon, 28 Jan 2002 08:12:52 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Mon, 28 Jan 2002 08:12:22 -0700 From: "Robert Wood" To: Subject: Pipeing manifold Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA26504 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 28 Jan 2002 08:12:22 -0700 From: "Robert Wood" To: Subject: Pipeing manifold Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA26504 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We are installing a new Linac. We will use a chiller but we want to have the capability to switch to city water in case the chiller has a problem. The engineering firm has designed one but, it would seem to me that with as many applications for this type of bypass, that surely there is a prefabbed Piping manifold already on the market. This thing that they have designed has several drawbacks (potential to dump the chiller, wasted glycol coolant, big and bulky, manual transfer, etc.) Anyone have a source for a prefabbed piping manifold? Any views or opinions expressed in this email (unless otherwise stated) are mine and do not reflect the opinions or policies of any other person or organization. This email may contain personel or private information and the foregoing is not intended to be a legally binding or legally effective electronic signature. This message may contain legally privileged or confidential information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Jan 28 23:20:32 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VK8e-0006H3-00; Mon, 28 Jan 2002 23:20:32 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id CBEB81112F1; Mon, 28 Jan 2002 23:16:15 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA11695 for linac-eng-list; Mon, 28 Jan 2002 15:59:10 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m06.mx.aol.com (imo-m06.mx.aol.com [64.12.136.161]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA11691 for ; Mon, 28 Jan 2002 15:59:08 -0600 (CST) From: JDDIHWRR@aol.com Received: from JDDIHWRR@aol.com by imo-m06.mx.aol.com (mail_out_v31_r1.26.) id c.18c.276257f (15859) for ; Mon, 28 Jan 2002 11:39:58 -0500 (EST) Received: from web42.aolmail.aol.com (web42.aolmail.aol.com [205.188.161.3]) by air-id05.mx.aol.com (v82.22) with ESMTP id MAILINID510-0128113957; Mon, 28 Jan 2002 11:39:57 -0500 Date: Mon, 28 Jan 2002 11:39:57 EST Subject: Varian Exact Couch Calibration To: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Mailer: Unknown (No Version) Message-ID: <18c.276257f.2986d8de@aol.com> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: JDDIHWRR@aol.com Date: Mon, 28 Jan 2002 11:39:57 EST Subject: Varian Exact Couch Calibration To: Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk To List, I need to Calibrate the Exact Couch Longitudinal PRO Calibration. I find no procedure listed anywhere except for the general PRO cal procedure in the Technical Reference manual. The Customer Acceptance Form references a "PRO alignment Tool at the 0 index notch" This is apparently the 140cm mark. My question is this -What is the PRO alignment tool, and where is the 0index notch? Thanks ,Jerry Dukes, Christus St. Michael HCC 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 00:56:51 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VLdr-0006Mp-00; Tue, 29 Jan 2002 00:56:51 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 318AF1112F1; Tue, 29 Jan 2002 00:52:33 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id RAA16961 for linac-eng-list; Mon, 28 Jan 2002 17:31:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA16957 for ; Mon, 28 Jan 2002 17:31:36 -0600 (CST) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id RAA16641; Mon, 28 Jan 2002 17:27:51 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B4F.0080DBEC ; Mon, 28 Jan 2002 17:27:29 -0600 X-Lotus-FromDomain: MDACC To: JDDIHWRR@aol.com Cc: linac-eng@plato1.aristotle.net Message-ID: <86256B4F.0080DB64.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 28 Jan 2002 17:25:23 -0600 Subject: Re: Varian Exact Couch Calibration Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: JDDIHWRR@aol.com Cc: linac-eng@plato1.aristotle.net Date: Mon, 28 Jan 2002 17:25:23 -0600 Subject: Re: Varian Exact Couch Calibration Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Jerry, The PRO alignment tool is a bar which is the width of the table and locks into the notches located along the side of the Med-Tec couch top. The bar has a slot in the center through which a tape measure can be fed through and secured. The notches along the side of the couch top should be labeled, and there should be zero notches. I believe that all EXACT couches come with the Med-Tec couch top and an alignment tool. The part number for the alignment tool is G998000100. Chad Fikes MD Anderson Cancer Center JDDIHWRR@aol.com on 01/28/2002 10:39:57 AM To: Linac-eng@plato1.aristotle.net cc: (bcc: Chad L. Fikes/MDACC) Subject: Varian Exact Couch Calibration To List, I need to Calibrate the Exact Couch Longitudinal PRO Calibration. I find no procedure listed anywhere except for the general PRO cal procedure in the Technical Reference manual. The Customer Acceptance Form references a "PRO alignment Tool at the 0 index notch" This is apparently the 140cm mark. My question is this -What is the PRO alignment tool, and where is the 0index notch? Thanks ,Jerry Dukes, Christus St. Michael HCC 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 06:06:50 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VQTq-0006dc-00; Tue, 29 Jan 2002 06:06:50 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 221A51112F1; Tue, 29 Jan 2002 06:02:28 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA25506 for linac-eng-list; Mon, 28 Jan 2002 22:34:05 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp01.hutchcity.com (cyan.hutchcity.com [202.45.84.86]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA25479 for ; Mon, 28 Jan 2002 22:34:02 -0600 (CST) Received: (qmail 47895 invoked from network); 29 Jan 2002 04:34:05 -0000 Received: from unknown (HELO webmail02) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 29 Jan 2002 04:34:05 -0000 Message-ID: <2304258.1012278744833.JavaMail.root@webmail02> Date: Tue, 29 Jan 2002 12:32:24 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Vacuum Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 29 Jan 2002 12:32:24 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Vacuum Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk SL20, Serial No. 5341 The vacuum is becoming bad. Over the past few months, the VAC TARG and VAC GUN decrease slowly from -6.2x down to -5.10. When I slightly tapped the ion pump body at the target side, the trapped particles immediately released, and the VAC GUN changed from -5.1x to -3.xx. It then gradually pumped back to -5.1x. I haven't checked the readings with the pump magnets removed. The VAC readings do not change much during beam on. The flight tube is still the slit type. Any suggestions? Jonathan Chan QUEEN MARY HOSPITAL HONG KONG 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 15:45:36 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VZVw-00030B-00; Tue, 29 Jan 2002 15:45:36 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6EB4B1112F2; Tue, 29 Jan 2002 15:41:05 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA02983 for linac-eng-list; Tue, 29 Jan 2002 08:19:45 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA02979 for ; Tue, 29 Jan 2002 08:19:44 -0600 (CST) From: Bob.Tonks@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g0TEJAi12438; Tue, 29 Jan 2002 09:19:10 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B50.004ADEF8 ; Tue, 29 Jan 2002 08:37:47 -0500 X-Lotus-FromDomain: LRCC To: "Robert Wood" , linac-eng@plato1.aristotle.net Message-ID: <85256B50.004ADE4C.00@mail.lrcc.on.ca> Date: Tue, 29 Jan 2002 08:37:44 -0500 Subject: Re: Pipeing manifold Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Bob.Tonks@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Robert Wood" , linac-eng@plato1.aristotle.net Date: Tue, 29 Jan 2002 08:37:44 -0500 Subject: Re: Pipeing manifold Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Robert, We use chilled water also but have a closed system between Varian's heat exchanger and the chilled water from the hospital. There is a closet with two external heat exchangers in series with the cooling loop to the machine. One heat exchanger is cooled by the hospital chilled water and the other is cooled by city water. The setting for the city water is set above the chilled water one so it normally doesn't come on except as a backup. There is a pump that circulates the water in the closed system. If there is a problem and the Varian heat exchanger needs to be replaced you only affect the closed system to the machine. Hope this helps, Bob Tonks London Regional cancer Centre 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 16:29:36 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VaCW-0003P9-00; Tue, 29 Jan 2002 16:29:36 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E64F71112F2; Tue, 29 Jan 2002 16:25:05 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA04271 for linac-eng-list; Tue, 29 Jan 2002 09:11:04 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from swchsc.on.ca ([142.76.1.62]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA04265 for ; Tue, 29 Jan 2002 09:11:03 -0600 (CST) Received: by swchsc.on.ca; id KAA14862; Tue, 29 Jan 2002 10:10:15 -0500 (EST) Received: from nodnsquery(142.76.240.40) by WebShield.swchsc.on.ca via csmap (V4.1) id srcAAAB1aObD; Tue, 29 Jan 02 10:10:15 -0500 Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 29 Jan 2002 10:10:20 -0500 Message-ID: From: "Rozenblat, Alex" To: "'Jonathan Chan'" , linac eng Subject: RE: Vacuum Date: Tue, 29 Jan 2002 10:10:15 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'Jonathan Chan'" , linac eng Subject: RE: Vacuum Date: Tue, 29 Jan 2002 10:10:15 -0500 Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk >From my previous experience - NOT with Philips linacs though - try to outbake them after you remove magnets of course. You have to brake vacuum and keep at least (-3) by rough pump (either mechanical or absorption). Good idea is to check by hand temperature of the ion pump body - if it is higher than usual - before you start outbaking. In general - if one has gradual vacuum deterioration without beam - it's a good indication of a leakage, may be very tiny. Alex Rozenblat TSRCC, Toronto -----Original Message----- From: Jonathan Chan [mailto:sky8808@hutchcity.com] Sent: 28 January 2002 23:32 To: linac eng Subject: Vacuum SL20, Serial No. 5341 The vacuum is becoming bad. Over the past few months, the VAC TARG and VAC GUN decrease slowly from -6.2x down to -5.10. When I slightly tapped the ion pump body at the target side, the trapped particles immediately released, and the VAC GUN changed from -5.1x to -3.xx. It then gradually pumped back to -5.1x. I haven't checked the readings with the pump magnets removed. The VAC readings do not change much during beam on. The flight tube is still the slit type. Any suggestions? Jonathan Chan QUEEN MARY HOSPITAL HONG KONG 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 17:28:20 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Vb7L-0003vF-00; Tue, 29 Jan 2002 17:28:20 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 119961112F2; Tue, 29 Jan 2002 17:23:47 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA05903 for linac-eng-list; Tue, 29 Jan 2002 09:57:36 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from www.wrcc.on.ca (w38.wednet.on.ca [209.202.75.38]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA05897 for ; Tue, 29 Jan 2002 09:57:26 -0600 (CST) From: Sheldon.Chippett@wrcc.on.ca Received: from mail01.wrcc.on.ca ([142.76.252.109]) by www.wrcc.on.ca (Lotus Domino Release 5.0.6) with ESMTP id 2002012910565595:642 ; Tue, 29 Jan 2002 10:56:55 -0500 Subject: Re: Vacuum To: sky8808%hutchcity.com%WINDSOR@wrcc.on.ca Cc: linac-eng@plato1.aristotle.net X-Mailer: Lotus Notes Release 5.0.8 June 18, 2001 Message-ID: Date: Tue, 29 Jan 2002 10:56:54 -0500 MIME-Version: 1.0 X-MIMETrack: Serialize by Router on MAIL01/SERVERS/WRCC(Release 5.0.8 |June 18, 2001) at 01/29/2002 10:56:54 AM, Itemize by SMTP Server on DOMINO/WINDSOR(Release 5.0.6 |December 14, 2000) at 01/29/2002 10:56:56 AM, Serialize by Router on DOMINO/WINDSOR(Release 5.0.6 |December 14, 2000) at 01/29/2002 10:57:35 AM, Serialize complete at 01/29/2002 10:57:35 AM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Sheldon.Chippett@wrcc.on.ca Subject: Re: Vacuum To: sky8808%hutchcity.com%WINDSOR@wrcc.on.ca Cc: linac-eng@plato1.aristotle.net Date: Tue, 29 Jan 2002 10:56:54 -0500 X-MIMETrack: Serialize by Router on MAIL01/SERVERS/WRCC(Release 5.0.8 |June 18, 2001) at 01/29/2002 10:56:54 AM, Itemize by SMTP Server on DOMINO/WINDSOR(Release 5.0.6 |December 14, 2000) at 01/29/2002 10:56:56 AM, Serialize by Router on DOMINO/WINDSOR(Release 5.0.6 |December 14, 2000) at 01/29/2002 10:57:35 AM, Serialize complete at 01/29/2002 10:57:35 AM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Jonathan, I had a similar problem with our SL25, serial # 5016. In my case the flight tube o-ring was the culprit. Best regards, Sheldon Chippett Windsor Regional Cancer Centre Windsor, Ontario Canada Jonathan Chan To: linac eng Sent by: cc: owner-linac-eng@plato1.ari Subject: Vacuum stotle.net 01/28/2002 11:32 PM SL20, Serial No. 5341 The vacuum is becoming bad. Over the past few months, the VAC TARG and VAC GUN decrease slowly from -6.2x down to -5.10. When I slightly tapped the ion pump body at the target side, the trapped particles immediately released, and the VAC GUN changed from -5.1x to -3.xx. It then gradually pumped back to -5.1x. I haven't checked the readings with the pump magnets removed. The VAC readings do not change much during beam on. The flight tube is still the slit type. Any suggestions? Jonathan Chan QUEEN MARY HOSPITAL HONG KONG 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 18:54:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VcSk-0004Gu-00; Tue, 29 Jan 2002 18:54:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 298641112F3; Tue, 29 Jan 2002 18:49:48 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA09212 for linac-eng-list; Tue, 29 Jan 2002 11:30:11 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id LAA09208 for ; Tue, 29 Jan 2002 11:30:03 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA06244; Tue, 29 Jan 2002 11:35:29 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3C56DC2B.87627B81@scf.sk.ca> Date: Tue, 29 Jan 2002 11:30:19 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Linac-Engineers, Listserver" Subject: Varian 21EX Gantry Drive Content-Type: multipart/mixed; boundary="------------9A2CF2A4667B27F291B72C98" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 29 Jan 2002 11:30:19 -0600 From: Chris Barnardo X-Accept-Language: en To: "Linac-Engineers, Listserver" Subject: Varian 21EX Gantry Drive Content-Type: multipart/mixed; boundary="------------9A2CF2A4667B27F291B72C98" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------9A2CF2A4667B27F291B72C98 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit We have a Varian 21EX s/n 1569 (Built 2000) which has a slipping clutch for the gantry drive. Has anyone had the experience of adjusting this clutch. We cannot find an adjustment procedure. If someone could help us and forward the procedure to me it would be great. Thanks --------------9A2CF2A4667B27F291B72C98 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------9A2CF2A4667B27F291B72C98-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 21:33:53 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Vewz-0004WS-00; Tue, 29 Jan 2002 21:33:53 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id EEAFD1112F2; Tue, 29 Jan 2002 21:29:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA14759 for linac-eng-list; Tue, 29 Jan 2002 14:13:50 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA14755 for ; Tue, 29 Jan 2002 14:13:48 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA27050 for ; Wed, 30 Jan 2002 09:07:22 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Wed, 30 Jan 2002 09:13:15 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 30 Jan 2002 09:13:11 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 30 Jan 2002 09:13:07 +1300 From: "Dave Pinchin" To: Subject: Varian MC file software. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id OAA14756 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 30 Jan 2002 09:13:07 +1300 From: "Dave Pinchin" To: Subject: Varian MC file software. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id OAA14756 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk G'day, Thanks to all those responding. I will send a bulk posting in a day or so. Dave. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Jan 29 22:19:37 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VffF-0004bN-00; Tue, 29 Jan 2002 22:19:37 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D20F01112F2; Tue, 29 Jan 2002 22:15:01 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id OAA16148 for linac-eng-list; Tue, 29 Jan 2002 14:55:04 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA16141; Tue, 29 Jan 2002 14:54:57 -0600 (CST) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id PAA29585; Tue, 29 Jan 2002 15:50:06 -0500 (EST) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma029465; Tue, 29 Jan 02 15:49:28 -0500 Subject: Re: Piping manifold To: "Robert Wood" Cc: linac-eng@plato1.aristotle.net, owner-linac-eng@plato1.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Tue, 29 Jan 2002 14:54:08 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.8 |June 18, 2001) at 01/29/2002 02:54:08 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Re: Piping manifold To: "Robert Wood" Cc: linac-eng@plato1.aristotle.net, owner-linac-eng@plato1.aristotle.net Date: Tue, 29 Jan 2002 14:54:08 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.8 |June 18, 2001) at 01/29/2002 02:54:08 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Robert We have 4 sites and each has its own manifold setup and none seems to be any better than the other. Most of the systems have been in use for longer than 5 years with the main site up for almost 10 years . We have only had one problem where the chiller went down and we had to Switch to the city water, the procedure for change over could result in dumping the chiller but we performed the change over without doing so. When we built our last center we looked into an automatic system mfg'ed by the company "ARCTIC CHILL" ( can be found on the net) but it was expensive and admin. would not buy into the extra cost. Sorry I can't offer more but we have 4 locally constructed systems and the are working OK in our application. Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 30 02:27:28 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VjX5-00050k-00; Wed, 30 Jan 2002 02:27:27 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 976C21112F2; Wed, 30 Jan 2002 02:22:47 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id TAA25582 for linac-eng-list; Tue, 29 Jan 2002 19:05:03 -0600 (CST) Received: from webmail2.iinet.net.au (webmail2.iinet.net.au [203.59.24.54]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA25578 for ; Tue, 29 Jan 2002 19:05:00 -0600 (CST) From: procbms@iinet.net.au Received: (from web@localhost) by webmail2.iinet.net.au (8.9.3/8.9.3) id JAA13092; Wed, 30 Jan 2002 09:11:29 +0800 Date: Wed, 30 Jan 2002 09:11:29 +0800 Message-Id: <200201300111.JAA13092@webmail2.iinet.net.au> X-Authentication-Warning: webmail2.iinet.net.au: web set sender to procbms@iinet.net.au using -f Content-Type: text/plain Content-Disposition: inline Mime-Version: 1.0 To: Jonathan Chan Cc: linac eng Reply-To: procbms@iinet.net.au Subject: Re: Vacuum X-Mailer: iiNet WebMail v2 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** From: procbms@iinet.net.au Date: Wed, 30 Jan 2002 09:11:29 +0800 X-Authentication-Warning: webmail2.iinet.net.au: web set sender to procbms@iinet.net.au using -f Content-Type: text/plain Content-Disposition: inline To: Jonathan Chan Cc: linac eng Reply-To: procbms@iinet.net.au Subject: Re: Vacuum Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Jonathan, We have seen a couple of leaky RF windows which cause almost exactly the symptoms you describe. Or else it could be the slits sample feedthrough leaking or the o-ring as per Sheldons message. It could be the bellows but unlikely if it has been over a fair period of time. If it is SF6 contaminating your ion pumps through the RF window you will shortly need to replace the pump at least at the target end. SF6 breaks down to some fairly nasties as far as I have been told. The last pump we replaced smelt like rotten eggs. You should be able to seal any leaks at the slit sample feedthroughs pr the RF windows with Vacuum Leak seal spray or lacquer. Was available from Elekta once upon a time. To check on the RF window leak pump down the SF6 and see if your vacuum improves. Good luck. Regards Ron Kimber > SL20, Serial No. 5341 > > The vacuum is becoming bad. > Over the past few months, the VAC TARG and VAC GUN decrease slowly from - 6.2x down to -5.10. > When I slightly tapped the ion pump body at the target side, the trapped particles immediately released, > and the VAC GUN changed from -5.1x to -3.xx. It then gradually pumped back to -5.1x. > I haven't checked the readings with the pump magnets removed. > > The VAC readings do not change much during beam on. > > The flight tube is still the slit type. > > Any suggestions? > > Jonathan Chan > QUEEN MARY HOSPITAL > HONG KONG > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 30 14:41:01 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Vuyz-0000k8-00; Wed, 30 Jan 2002 14:41:01 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 34C931112F2; Wed, 30 Jan 2002 14:36:11 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id HAA06886 for linac-eng-list; Wed, 30 Jan 2002 07:19:16 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailserver.xrt.upenn.edu (email.xrt.upenn.edu [165.123.248.180]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA06882 for ; Wed, 30 Jan 2002 07:19:14 -0600 (CST) Received: by email.xrt.upenn.edu with Internet Mail Service (5.5.2650.21) id ; Wed, 30 Jan 2002 08:27:06 -0500 Message-ID: From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2300cd for sale Date: Wed, 30 Jan 2002 08:27:05 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A991.CEF80F80" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2300cd for sale Date: Wed, 30 Jan 2002 08:27:05 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1A991.CEF80F80" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1A991.CEF80F80 Content-Type: text/plain; charset="iso-8859-1" The Hospital of the University of Pennsylvania department of Radiation Oncology will be taking bids on a Varian 2300cd. Interested parties need to keep in mind that the awarded party will be responsible for removal and shipment of equipment agreed on by the University of Pennsylvania and the awarded party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian. This accelerator is used for daily clinical treatment and has been upgraded with many features. Installed in 1994 and fully operational since. Using type III accessories along with an ETR couch and independent jaws along with dynamic wedge. This accelerator has been setup with the following energies 6x 15x 6e 9e 12e 15e 18e 22e Interested parties with questions or would like to setup a time to see the equipment can contact: Rick Kreider Chief of Engineering Hospital of the University of Pennsylvania Department of Radiation Oncology Kreider@xrt.upenn.edu Tel: 215-662-6749 Fax: 215-662-6762 ------_=_NextPart_001_01C1A991.CEF80F80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The University of Pennsylvania Hospital department of Radiation = Oncology will be taking bids on a Varian 2100c

    The Hospital of the University of Pennsylvania department of = Radiation Oncology will be taking bids on a Varian 2300cd. Interested parties = need to keep in mind that the awarded party will be responsible for removal and shipment of equipment agreed on by the University of Pennsylvania and = the awarded party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian.

     

    This accelerator is used for daily clinical treatment and has = been upgraded with many features. Installed in 1994 and fully operational = since. Using type III accessories along with an ETR couch and independent jaws = along with dynamic wedge.

     

    This accelerator has been setup with the following = energies

    6x  15x  6e  9e  = 12e  15e 18e 22e

     

    Interested parties with questions or would like to setup a time = to see the equipment

    can contact:

     

    Rick Kreider

    Chief of Engineering

    Hospital of the University of Pennsylvania

    Department of Radiation Oncology

    Kreider@xrt.upenn.edu

    Tel: 215-662-6749

    Fax: 215-662-6762

      =

    ------_=_NextPart_001_01C1A991.CEF80F80-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Jan 30 15:16:22 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16VvXC-00011S-00; Wed, 30 Jan 2002 15:16:22 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C2CFC1112F2; Wed, 30 Jan 2002 15:11:31 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA07503 for linac-eng-list; Wed, 30 Jan 2002 07:55:14 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ws3-6.us4.outblaze.com (205-158-62-90.outblaze.com [205.158.62.90]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id HAA07499 for ; Wed, 30 Jan 2002 07:55:12 -0600 (CST) Received: (qmail 29309 invoked by uid 1001); 30 Jan 2002 13:53:14 -0000 Message-ID: <20020130135314.29308.qmail@email.com> Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Received: from [203.198.23.169] by ws3-6.us4.outblaze.com with http for kimyeung@email.com; Wed, 30 Jan 2002 08:53:14 -0500 From: "kim yeung" To: linac-eng@plato1.aristotle.net Date: Wed, 30 Jan 2002 08:53:14 -0500 Subject: Re: Ximatron High resolution B/W monitor X-Originating-Ip: 203.198.23.169 X-Originating-Server: ws3-6.us4.outblaze.com Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline From: "kim yeung" To: linac-eng@plato1.aristotle.net Date: Wed, 30 Jan 2002 08:53:14 -0500 Subject: Re: Ximatron High resolution B/W monitor X-Originating-Ip: 203.198.23.169 X-Originating-Server: ws3-6.us4.outblaze.com Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Colleagues, Ximatron C-series, Version 6.1 We are looking for a replacement of Ximatro's high resolution B/W monitor. Could anyone advise the source of the monitor? Thanks in advance. Kim Yeung -- _______________________________________________ Win a ski trip! http://www.nowcode.com/register.asp?affiliate=1net2phone3a 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Jan 31 00:04:07 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16W3lu-00033e-00; Thu, 31 Jan 2002 00:04:07 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 955881112F3; Wed, 30 Jan 2002 23:59:08 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id QAA26117 for linac-eng-list; Wed, 30 Jan 2002 16:46:40 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.primex.co.uk (smtp.primex.co.uk [213.165.147.50]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA26113 for ; Wed, 30 Jan 2002 16:46:39 -0600 (CST) Received: from oemcomputer (dialup96.primex.co.uk [195.157.34.96]) by smtp.primex.co.uk (8.11.6/8.11.6) with SMTP id g0UMlHD02965 for ; Wed, 30 Jan 2002 22:47:18 GMT Message-ID: <028c01c1a9e0$769db520$25229dc3@oemcomputer> From: "Chris Usher" To: References: <20.2277f11e.297b2eb4@aol.com> <002f01c1a7a6$9af8f060$78a199d1@thunderbird> Subject: Re: Dynamic MLC problems Date: Wed, 30 Jan 2002 22:39:39 -0000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0174_01C1A9DF.00B752E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Usher" To: Subject: Re: Dynamic MLC problems Date: Wed, 30 Jan 2002 22:39:39 -0000 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0174_01C1A9DF.00B752E0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0174_01C1A9DF.00B752E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Have you tried rewriting the secondary position check files - someone = put up how you do this a few days ago (I'm only a physicist so I don't = remember stuff like this) Chris ----- Original Message -----=20 From: Jeff Cressman=20 To: Accelr8torButchr@aol.com ; Linac-eng@plato1.aristotle.net=20 Sent: Monday, January 28, 2002 2:50 AM Subject: Re: Dynamic MLC problems Ron, I thought I'd throw in my 2 cents. When you get an MLC interlock many = times if you hit the on your MLC CONTROLLER computer's = keyboard more information will be displayed on the CONTROLLER computer's = monochrome monitor. Usually will tell you which motor or carriage is = causing the interlock. I'd be very interested in knowing what you find out to be the problem. = We're getting Dynamic IMRT for our 80 leaf MLC in just a few weeks. Good Luck, Jeff Cressman Sparrow Regional Cancer Center Lansing, Michigan ----- Original Message -----=20 From: Accelr8torButchr@aol.com=20 To: Linac-eng@plato1.aristotle.net=20 Sent: Saturday, January 19, 2002 3:19 PM Subject: Dynamic MLC problems Have an interesting problem on a 21EX with 80 leaf MLC. When running = Dynamic treatments the machine intermittently shuts down with a MLC = fault. Hitting "ENTER" clears this fault and the treatment can = continue. I found that the MLC fault is caused by "Controller I/L = -Secondary position." I believe the problem is a flaky leaf motor = encoder but I'm not sure how to find which one. I've changed the SFB = PCB's & cleaned all leaves. There are no slow motors as far as I can = tell. I guess I could change all 80 motors. :)=20 Any suggestions would be appreciated.=20 Thanks,=20 Ron=20 ------=_NextPart_000_0174_01C1A9DF.00B752E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Have you tried rewriting the secondary = position=20 check files - someone put up how you do this a few days ago (I'm only a=20 physicist so I don't remember stuff like this)
     
    Chris
    ----- Original Message -----
    From:=20 Jeff=20 Cressman
    To: Accelr8torButchr@aol.com = ; Linac-eng@plato1.aristotle= .net=20
    Sent: Monday, January 28, 2002 = 2:50=20 AM
    Subject: Re: Dynamic MLC = problems

    Ron,
     
    I thought I'd throw in my 2 = cents.  When you=20 get an MLC interlock many times if you hit the <space bar> on = your MLC=20 CONTROLLER computer's keyboard more information will be displayed = on the=20 CONTROLLER computer's monochrome monitor.  Usually will tell you = which=20 motor or carriage is causing the interlock.
     
    I'd be very interested in knowing = what you find=20 out to be the problem.  We're getting Dynamic IMRT for our 80 = leaf MLC in=20 just a few weeks.
     
    Good Luck,
     
    Jeff Cressman
    Sparrow Regional Cancer = Center
    Lansing, Michigan
    ----- Original Message -----
    From:=20 Accelr8torButchr@aol.com =
    To: Linac-eng@plato1.aristotle= .net=20
    Sent: Saturday, January 19, = 2002 3:19=20 PM
    Subject: Dynamic MLC = problems

    Have an = interesting=20 problem on a 21EX with 80 leaf MLC. When running Dynamic treatments = the=20 machine intermittently shuts down with a MLC fault.  Hitting = "ENTER"=20 clears this fault and the treatment can continue.  I found that = the MLC=20 fault is caused by "Controller I/L -Secondary position."  I = believe the=20 problem is a flaky leaf motor encoder but I'm not sure how to find = which=20 one.  I've changed the SFB PCB's & cleaned all leaves. = There are no=20 slow motors as far as I can tell.  I guess I could change all = 80=20 motors. :)

    Any suggestions would be appreciated.
    Thanks, =
    Ron
    ------=_NextPart_000_0174_01C1A9DF.00B752E0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 01 02:46:58 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16WSn4-0001WT-00; Fri, 1 Feb 2002 02:46:58 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 619471112F3; Fri, 1 Feb 2002 02:41:36 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id TAA14567 for linac-eng-list; Thu, 31 Jan 2002 19:28:02 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id TAA14563 for ; Thu, 31 Jan 2002 19:28:01 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato1.aristotle.net [204.233.139.43]) with SMTP; 1 Feb 2002 01:21:13 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Thu, 31 Jan 2002 17:25:03 -0800 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato1.aristotle.net'" Cc: "'tcullen@wfubmc.edu'" Subject: MLC faults on Millenium due Y jaw proximity Date: Thu, 31 Jan 2002 17:26:41 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato1.aristotle.net'" Cc: "'tcullen@wfubmc.edu'" Subject: MLC faults on Millenium due Y jaw proximity Date: Thu, 31 Jan 2002 17:26:41 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hey, T. Cullen was very correct with his solution to the problem of MLC fault on the Millenium (while parked even) if you move from an a-symmetrical off axis Y jaw position (10cm and -9.5cm, closed) and then go symmetrical. The "Y jaws closed micro switch" for the Y jaws must click prior to the jaws stopping due to the software limit. I adjusted the switch just a squiggly out more and it clicks now and we no longer get the MLC fault that required a re-initialization of the MLC to clear. Thank you T. Cullen!!! Tom Bush SHMC 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 01 17:13:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16WgJe-0006t9-00; Fri, 1 Feb 2002 17:13:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6842D1112F2; Fri, 1 Feb 2002 17:07:56 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id JAA11776 for linac-eng-list; Fri, 1 Feb 2002 09:49:57 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA11772 for ; Fri, 1 Feb 2002 09:49:56 -0600 (CST) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g11FnJs00493; Fri, 1 Feb 2002 09:49:19 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g11FnJ800489; Fri, 1 Feb 2002 09:49:19 -0600 (CST) Received: through eSafe SMTP Relay 1011796978; Fri Feb 01 09:48:39 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Fri, 1 Feb 2002 09:49:18 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E01@wmhmail.phci.org> From: "Williams, Rod" To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Cc: "'tcullen@wfubmc.edu'" Subject: RE: MLC faults on Millenium due Y jaw proximity Date: Fri, 1 Feb 2002 09:49:18 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1AB38.020D5130" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Cc: "'tcullen@wfubmc.edu'" Subject: RE: MLC faults on Millenium due Y jaw proximity Date: Fri, 1 Feb 2002 09:49:18 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1AB38.020D5130" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1AB38.020D5130 Content-Type: text/plain Your are not talking about the 120 Millenium are you? Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL > -----Original Message----- > From: Bush, Thomas M. [SMTP:BushT@shmc.org] > Sent: Thursday, January 31, 2002 7:27 PM > To: 'Linac-eng@plato1.aristotle.net' > Cc: 'tcullen@wfubmc.edu' > Subject: MLC faults on Millenium due Y jaw proximity > > Hey, T. Cullen was very correct with his solution to the problem of MLC > fault on the Millenium (while parked even) if you move from an > a-symmetrical > off axis Y jaw position (10cm and -9.5cm, closed) and then go symmetrical. > The "Y jaws closed micro switch" for the Y jaws must click prior to the > jaws stopping due to the software limit. I adjusted the switch just a > squiggly out more and it clicks now and we no longer get the MLC fault > that > required a re-initialization of the MLC to clear. Thank you T. Cullen!!! > > Tom Bush > SHMC ------_=_NextPart_001_01C1AB38.020D5130 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: MLC faults on Millenium due Y jaw proximity

    Your are not talking a= bout the 120 Millenium are you?

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL


      -----Original Message-----
      From:   Bush, Thomas M. [SMTP:BushT@shmc.org]
      Sent:   Thursday, January 31, 2002 7:27 PM
      To:     'Linac-eng@plato1.aristotle.net'
      Cc:     'tcullen@wfubmc.edu'
      Subject:    &nbs= p;   MLC faults on Mil= lenium due Y jaw proximity

      Hey,  T. Cullen was very correct wi= th his solution to the problem of MLC
      fault on the Millenium (while parked ev= en) if you move from an a-symmetrical
      off axis Y jaw position (10cm and -9.5c= m, closed) and then go symmetrical.
      The "Y jaws closed micro switch&qu= ot;  for the Y jaws must click prior to the
      jaws stopping due to the software limit= .  I adjusted the switch just a
      squiggly out more and it clicks now and= we no longer get the MLC fault that
      required a re-initialization of the MLC= to clear.  Thank you T. Cullen!!!  
      Tom Bush
      SHMC

    ------_=_NextPart_001_01C1AB38.020D5130-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 01 21:40:01 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16WkTZ-0007DK-00; Fri, 1 Feb 2002 21:40:01 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 54A411112F1; Fri, 1 Feb 2002 21:34:24 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id OAA05061 for linac-eng-list; Fri, 1 Feb 2002 14:21:25 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.wfubmc.edu (mailadmin.wfubmc.edu [152.11.200.6]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA05057 for ; Fri, 1 Feb 2002 14:21:24 -0600 (CST) Received: from wfubmc.edu ([152.11.16.97]) by mail.wfubmc.edu (Netscape Messaging Server 3.61) with ESMTP id AAA3BEC; Fri, 1 Feb 2002 15:20:52 -0500 Message-ID: <3C5AF936.C248C515@wfubmc.edu> Date: Fri, 01 Feb 2002 15:23:18 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Mailer: Mozilla 4.6 [en]C-CCK-MCD (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: "Williams, Rod" Cc: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Subject: Re: MLC faults on Millenium due Y jaw proximity References: <7A3389A8D723D511B2260008C7B2BF390D5E01@wmhmail.phci.org> Content-Type: multipart/alternative; boundary="------------2D6219798C3BEC110B3538DC" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 01 Feb 2002 15:23:18 -0500 From: tcullen@wfubmc.edu (Tim Cullen) Organization: WFUBMC X-Accept-Language: en To: "Williams, Rod" Cc: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Subject: Re: MLC faults on Millenium due Y jaw proximity Content-Type: multipart/alternative; boundary="------------2D6219798C3BEC110B3538DC" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --------------2D6219798C3BEC110B3538DC Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Rod, that's what we are talking about. Easy fix, once you know what the problem is. Tim "Williams, Rod" wrote: > > > Your are not talking about the 120 Millenium are you? > > Rod.Williams@phci.org > WAUKESHA MEMORIAL HOSPITAL > > -----Original Message----- > From: Bush, Thomas M. [SMTP:BushT@shmc.org] > Sent: Thursday, January 31, 2002 7:27 PM > To: 'Linac-eng@plato1.aristotle.net' > Cc: 'tcullen@wfubmc.edu' > Subject: MLC faults on Millenium due Y jaw > proximity > > Hey, T. Cullen was very correct with his solution to > the problem of MLC > fault on the Millenium (while parked even) if you > move from an a-symmetrical > off axis Y jaw position (10cm and -9.5cm, closed) and > then go symmetrical. > The "Y jaws closed micro switch" for the Y jaws must > click prior to the > jaws stopping due to the software limit > squiggly out more and it clicks now and we no longer > get the MLC fault that > required a re-initialization of the MLC to clear. > Thank you T. Cullen!!! > Tom Bush > SHMC > --------------2D6219798C3BEC110B3538DC Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Rod, that's what we are talking about. Easy fix, once you know what the problem is.
    Tim
     

    "Williams, Rod" wrote:

     

    Your are not talking about the 120 Millenium are you?

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL

      -----Original Message-----
      From:   Bush, Thomas M. [SMTP:BushT@shmc.org]
      Sent:   Thursday, January 31, 2002 7:27 PM
      To:     'Linac-eng@plato1.aristotle.net'
      Cc:     'tcullen@wfubmc.edu'
      Subject:        MLC faults on Millenium due Y jaw proximity

      Hey,  T. Cullen was very correct with his solution to the problem of MLC
      fault on the Millenium (while parked even) if you move from an a-symmetrical
      off axis Y jaw position (10cm and -9.5cm, closed) and then go symmetrical.
      The "Y jaws closed micro switch"  for the Y jaws must click prior to the
      jaws stopping due to the software limit
      squiggly out more and it clicks now and we no longer get the MLC fault that
      required a re-initialization of the MLC to clear.  Thank you T. Cullen!!!
      Tom Bush
      SHMC

    --------------2D6219798C3BEC110B3538DC-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Feb 04 17:47:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16XmHG-0000ZK-00; Mon, 4 Feb 2002 17:47:34 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B2F131112F1; Mon, 4 Feb 2002 17:40:56 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA03781 for linac-eng-list; Mon, 4 Feb 2002 10:19:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA03774 for ; Mon, 4 Feb 2002 10:19:00 -0600 (CST) From: Denis.Brochu@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g14GISD15399 for ; Mon, 4 Feb 2002 11:18:28 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B56.00555DBD ; Mon, 4 Feb 2002 10:32:25 -0500 X-Lotus-FromDomain: LRCC To: linac-eng@plato1.aristotle.net Message-ID: <85256B56.00555C07.00@mail.lrcc.on.ca> Date: Mon, 4 Feb 2002 10:32:20 -0500 Subject: ETR Couch Inserts Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Denis.Brochu@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato1.aristotle.net Date: Mon, 4 Feb 2002 10:32:20 -0500 Subject: ETR Couch Inserts Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk A while back someone posted that a boat company in either Australia or New Zealand that was manufacturing the ETR couch carbon fiber panels. I was wondering if someone had the name of the company and a contact name , the information would be greatly appreciated . Thanks Denis Brochu London Regional Cancer Center 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Feb 04 18:27:18 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Xmti-0000ky-00; Mon, 4 Feb 2002 18:27:18 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B9E6B1112F1; Mon, 4 Feb 2002 18:20:40 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA05656 for linac-eng-list; Mon, 4 Feb 2002 11:05:13 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pollux.it.luc.edu (pollux.it.luc.edu [147.126.59.91]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA05652 for ; Mon, 4 Feb 2002 11:05:12 -0600 (CST) Received: from wpo.it.luc.edu (wpo.it.luc.edu [147.126.59.93]) by pollux.it.luc.edu (Postfix) with SMTP id BFB582A340 for ; Mon, 4 Feb 2002 11:04:53 -0600 (CST) Received: from GWIA3-Message_Server by wpo.it.luc.edu with Novell_GroupWise; Mon, 04 Feb 2002 11:04:48 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Mon, 04 Feb 2002 10:57:26 -0600 From: "Richard Gerler" To: Subject: Intermittent DS12 with 6X Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id LAA05653 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 04 Feb 2002 10:57:26 -0600 From: "Richard Gerler" To: Subject: Intermittent DS12 with 6X Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id LAA05653 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I am hoping to find some input with an intermittent problem we are having. The system in question is a Varian 2100C (upgraded from a 1800). Energies are 6X,18X, 6e,9e,12e,18e,20e. The system intermittently gives a DS12 interlock on the 6X energy when treating at 125 & 215 degree gantry angles. The system will only give 2mu at a time when this starts to occur. I have not been present when it has happened, and of course it never happens in the evening when I try to isolate it. I am not sure whether it would happen in other energies if they were being used to treat at those angles. Of course they are not. The energy is properly aligned. I fear that I could have an intermittent ion chamber cable. Any thoughts? Richard Gerler Loyola University Medical Center Imaging Engineering 2160 S. First Ave Maywood, IL 60153 PH:(708) 216-9148 PG:(708) 216-8777 #17094 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 00:01:12 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Xs6q-00015q-00; Tue, 5 Feb 2002 00:01:12 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F8A31112F1; Mon, 4 Feb 2002 23:54:29 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA20460 for linac-eng-list; Mon, 4 Feb 2002 16:39:52 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA20456 for ; Mon, 4 Feb 2002 16:39:50 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Mon, 4 Feb 2002 14:39:19 -0800 Message-ID: <76E0B8A2AA4CEB49A2668206FA32EE6C9DD1E3@phsormsg01.phsor.org> From: "Kaufman, John" To: "'linac'" Subject: MLC communications errors Date: Mon, 4 Feb 2002 14:39:10 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kaufman, John" To: "'linac'" Subject: MLC communications errors Date: Mon, 4 Feb 2002 14:39:10 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk My hospital has 3 new 120 leaf MLC's. We are using IMPAC software for patient files and MLC and Clinac setup parameters. Communications errors have been rampant, sometimes between the MLC workstation and the MLC controller. ( In those cases shutting down the IMPAC workstation will usually remedy the problem.) Occasionally the IMPAC workstation has communication problems with the Varian console, but not as frequently. I am just starting to puzzle out the crazy communications setup that has been installed by Varian and IMPAC. The serial line from com1 on the MLC workstation to J1 on the MLC controller has been "intercepted" by a data tap ( B&B Electronics RS 232 tap model 232CDT) . This "data tap" then feeds com2 on the IMPAC workstation. I believe that the port handshaking protocol may be causing the problem. Does anyone have a similar setup that has already resolved their communications problems?? Is there another serial port tap that works better?? Thanks in advance! John B Kaufman Senior Biomedical Technician Providence Portland Medical Center 503-215-5415 503-215-6397 **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 01:20:09 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16XtLF-0001A9-00; Tue, 5 Feb 2002 01:20:09 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id CE8F91112F1; Tue, 5 Feb 2002 01:13:25 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id SAA23858 for linac-eng-list; Mon, 4 Feb 2002 18:01:33 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA23852 for ; Mon, 4 Feb 2002 18:01:32 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id RAA22066; Mon, 4 Feb 2002 17:57:51 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B56.00839A0F ; Mon, 4 Feb 2002 17:57:26 -0600 X-Lotus-FromDomain: MDACC To: "Kaufman, John" Cc: "'linac'" Message-ID: <86256B56.0083987C.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 4 Feb 2002 17:57:58 -0600 Subject: Re: MLC communications errors Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Kaufman, John" Cc: "'linac'" Date: Mon, 4 Feb 2002 17:57:58 -0600 Subject: Re: MLC communications errors Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We have a total of 8 Varian MLCs here. All utilize the "vampire box" interface to Impac. -One for over 7 seven years now. Of those, 3 are Mark 2 or 4 MLCs and the other 5 are Milleniums. The "data tap", or "vampire box" is probably not your primary problem, althought it is arguably a less-than-optimal means of implementing an interface. One possible cause is that you have a bona fide problem on the MLC, which will cause the controller to drop COM. Assuming you have checked this out (or verified the problem is IMPAC-induced): We have seen heavy network traffic (I.e., slow network) cause various communication problems. What will happen with our older units is a brief and self-clearing "WS COM" interlock on the Workstation, followed by a latching "Controller COM" when something finally times out. The WS COM can be so brief as to be barely noticable, yet after a few the thing crashes. We have also seen a situation on the Milleniums where the "MLCKey" application (which sends stuff from IMPAC to the MLC workstation by emulating keystrokes) will time out on a slow network access, and then will not recover. This "hangs" the communication to the MLC workstation, and can then cause Controller COM problems because the Workstation is not responding. The symptom we have seen here is that the RTTs will be prompted with a "choose folder" dialogue box when they try to download a leaf pattern, rather than the normal patient info. from IMPAC. The MLC isn't getting information from MLCKey application, so it thinks we want to look for a file. The band-aid here is to stop and re-start the MLC Workstation and MLCkey apps right then. I have heard that a "third party" interface is in the testing process, and this interface eliminates the "vampire box" approach. But who knows when we'll see it? Our solution to this and (many) other issues was to speed up the network connection to the MLC Workstation by using switched hubs and segregating the treatment equipment to its own subnet, the planning equipment to its own subnet, the PACs to its own subnet and the R&V to its own subnet, etc. This reduces the traffic seen by each device, effectively making the network each sees "Faster". This involves designing or re-designing the whole topology of the network; but if traffic is the problem, the MLC workstations are probably not the only place where it is an issue... Tim Waldron "Kaufman, John" on 02/04/2002 04:39:10 PM To: "'linac'" cc: (bcc: Timothy J. Waldron/MDACC) Subject: MLC communications errors My hospital has 3 new 120 leaf MLC's. We are using IMPAC software for patient files and MLC and Clinac setup parameters. Communications errors have been rampant, sometimes between the MLC workstation and the MLC controller. ( In those cases shutting down the IMPAC workstation will usually remedy the problem.) Occasionally the IMPAC workstation has communication problems with the Varian console, but not as frequently. I am just starting to puzzle out the crazy communications setup that has been installed by Varian and IMPAC. The serial line from com1 on the MLC workstation to J1 on the MLC controller has been "intercepted" by a data tap ( B&B Electronics RS 232 tap model 232CDT) . This "data tap" then feeds com2 on the IMPAC workstation. I believe that the port handshaking protocol may be causing the problem. Does anyone have a similar setup that has already resolved their communications problems?? Is there another serial port tap that works better?? Thanks in advance! John B Kaufman Senior Biomedical Technician Providence Portland Medical Center 503-215-5415 503-215-6397 **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 13:18:28 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Y4YO-0004bo-00; Tue, 5 Feb 2002 13:18:28 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8575A1112F1; Tue, 5 Feb 2002 13:11:33 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id GAA07686 for linac-eng-list; Tue, 5 Feb 2002 06:00:42 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from kodos.tinet.ie (mail1.tinet.ie [159.134.237.22]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA07682 for ; Tue, 5 Feb 2002 06:00:41 -0600 (CST) Received: from p173.as2.prp.dublin.eircom.net ([159.134.170.173] helo=vxs) by kodos.tinet.ie with smtp (Exim 2.05 #1) id 16Y4Gd-0007wc-00 for Linac-eng@plato1.aristotle.net; Tue, 5 Feb 2002 12:00:08 +0000 Message-ID: <00a801c1ae3d$ff5b5be0$260c350a@vxs> From: "Vincent Smith" To: "Linac Engineers list" Subject: 75/5 Parts Date: Tue, 5 Feb 2002 12:09:02 -0000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A5_01C1AE3D.E61D4300" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Vincent Smith" To: "Linac Engineers list" Subject: 75/5 Parts Date: Tue, 5 Feb 2002 12:09:02 -0000 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A5_01C1AE3D.E61D4300" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_00A5_01C1AE3D.E61D4300 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello to all on the list from Ireland We here at St Luke's Hospital exchanged our two much loved SL75/5 Linacs = for two bright shinning Precise desktop Linacs. As a result we are = looking for a good home for some spare parts that we no longer need. If anybody wants to arrange collection, I will send them the list of = parts,including magnetrons, if they email me directly. Keep up the good work, I personally learn a lot from the list Vincent Smith Senior Clinical Engineering Technician St. Luke's Hospital=20 Dublin Ireland PH: ++353 1 4065381 Email: vinsmith@eircom.net ------=_NextPart_000_00A5_01C1AE3D.E61D4300 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hello to all on the list from = Ireland
     
    We here at St Luke's Hospital exchanged = our two=20 much loved SL75/5 Linacs for two bright shinning Precise desktop = Linacs. =20 As a result we are looking for a good home for some spare parts that we = no=20 longer need.
    If anybody wants to arrange collection, = I will send=20 them the list of parts,including magnetrons, if they email me=20 directly.
     
    Keep up the good work, I personally = learn a lot=20 from the list
     
    Vincent Smith
    Senior Clinical Engineering = Technician
    St. Luke's Hospital
    Dublin
    Ireland
    PH: ++353 1 4065381
    Email: vinsmith@eircom.net
    <= /BODY> ------=_NextPart_000_00A5_01C1AE3D.E61D4300-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 17:56:19 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Y8tH-0007Vw-00; Tue, 5 Feb 2002 17:56:19 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id CDA6A1112F1; Tue, 5 Feb 2002 17:49:20 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA14896 for linac-eng-list; Tue, 5 Feb 2002 10:28:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA14892 for ; Tue, 5 Feb 2002 10:28:10 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g15GReT20398 for ; Tue, 5 Feb 2002 10:27:40 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g15GRdW20394 for ; Tue, 5 Feb 2002 10:27:39 -0600 (CST) Received: through eSafe SMTP Relay 1011796978; Tue Feb 05 10:26:59 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Tue, 5 Feb 2002 10:27:39 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E08@wmhmail.phci.org> From: "Williams, Rod" To: "'Linac-eng@plato1.aristotle.net'" Subject: Millennium 120 power supplies. Date: Tue, 5 Feb 2002 10:27:39 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1AE62.07079510" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Linac-eng@plato1.aristotle.net'" Subject: Millennium 120 power supplies. Date: Tue, 5 Feb 2002 10:27:39 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1AE62.07079510" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1AE62.07079510 Content-Type: text/plain Anyone interested in sending in there power supplies in for repair, let me know I have a disabled friend that is repairing them for $800.00, with the same warranty as VARIAN. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL ------_=_NextPart_001_01C1AE62.07079510 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Millennium 120 power supplies.

    Anyone interested in sending in there po= wer supplies in for repair, let me know I have a disabled friend that is = repairing them for $800.00, with the same warranty as VARIAN.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL


    ------_=_NextPart_001_01C1AE62.07079510-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 19:49:17 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YAeb-0007gw-00; Tue, 5 Feb 2002 19:49:17 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D4C9B1112F1; Tue, 5 Feb 2002 19:42:16 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA21051 for linac-eng-list; Tue, 5 Feb 2002 12:23:38 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r10.mx.aol.com (imo-r10.mx.aol.com [152.163.225.106]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA21042 for ; Tue, 5 Feb 2002 12:23:36 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-r10.mx.aol.com (mail_out_v31_r1.26.) id c.18f.2dc9ca0 (3965) for ; Tue, 5 Feb 2002 13:22:53 -0500 (EST) Message-ID: <18f.2dc9ca0.29917cfc@aol.com> Date: Tue, 5 Feb 2002 13:22:52 EST Subject: MLC Communications Errors To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_18f.2dc9ca0.29917cfc_boundary" X-Mailer: AOL 7.0 for Windows US sub 120 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Tue, 5 Feb 2002 13:22:52 EST Subject: MLC Communications Errors To: linac-eng@plato1.aristotle.net Content-Type: multipart/alternative; boundary="part1_18f.2dc9ca0.29917cfc_boundary" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --part1_18f.2dc9ca0.29917cfc_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi Everyone ... I have been following the MLC Comm issues posted here with interest. I have a 600C with 80 Leaf MLC with Impact and I am also experiencing an issue with a very brief and highly intermittent CLINAC COMM Controller I/L that is self clearing. It is my understanding that this is the Clinac comm of the Position Readouts to the MLC Controller. Both Com Boards have been replaced 600C and MLC computer. The problem occurs while the equipment is just sitting there. One question would be could this be a MLC problem or is it that the PRO data to the MLC is the problem. Again the serial comm I/F has been replaced without success. I also looked at the Network Neighborhood. Seems like the everyone and their brother is on the network. Shouldn't these systems be on dedicated networks? Any suggestions would be greatly appreciated. Thank you in advance. Garry --part1_18f.2dc9ca0.29917cfc_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi Everyone ...

    I have been following the MLC Comm issues posted here with interest. I have a 600C with 80 Leaf MLC with Impact and I am also experiencing an issue with a very brief and highly intermittent CLINAC COMM Controller I/L that is self clearing.

    It is my understanding that this is the Clinac comm of the Position Readouts to the MLC Controller. Both Com Boards have been replaced 600C and MLC computer. The problem occurs while the equipment is just sitting there. One question would be could this be a MLC problem or is it that the PRO data to the MLC is the problem. Again the serial comm I/F has been replaced without success.

    I also looked at the Network Neighborhood. Seems like the everyone and their brother is on the network. Shouldn't these systems be on dedicated networks?

    Any suggestions would be greatly appreciated. Thank you in advance.

    Garry

     --part1_18f.2dc9ca0.29917cfc_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 22:00:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YChp-0007oA-00; Tue, 5 Feb 2002 22:00:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id DA5881112F1; Tue, 5 Feb 2002 21:53:42 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id OAA29273 for linac-eng-list; Tue, 5 Feb 2002 14:34:22 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.radonc.eushc.org (mail.radonc.eushc.org [163.246.197.229]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA29269 for ; Tue, 5 Feb 2002 14:34:21 -0600 (CST) Received: by mail.radonc.eushc.org with Internet Mail Service (5.5.2653.19) id ; Tue, 5 Feb 2002 15:33:53 -0500 Message-ID: <4E2779952A023348945479C9C0494A1E2DD898@mail.radonc.eushc.org> From: Russ Olsen To: "Linac-Eng@Plato1. Aristotle. Net (linac-eng@plato1.aristotle.net)" Subject: Varian Pendant Repair Service? Date: Tue, 5 Feb 2002 15:33:52 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1AE84.6CA8C340" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Russ Olsen To: "Linac-Eng@Plato1. Aristotle. Net (linac-eng@plato1.aristotle.net)" Subject: Varian Pendant Repair Service? Date: Tue, 5 Feb 2002 15:33:52 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1AE84.6CA8C340" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1AE84.6CA8C340 Content-Type: text/plain Does anyone know if there is a company that will repair Varian Clinac and PortalVision pendants? I've got a boxful of bad ones and no time to repair and test. I would prefer to just send them out. Russ Olsen Systems Engineer Emory University School of Medicine Department of Radiation Oncology Atlanta, GA ------_=_NextPart_001_01C1AE84.6CA8C340 Content-Type: text/html Content-Transfer-Encoding: quoted-printable

    Does anyone know if there is a = company that will repair Varian Clinac and PortalVision pendants? I've got a boxful of bad ones and no time to repair and test. I would prefer to = just send them out.

     

    Russ Olsen

    Systems = Engineer

    Emory University School of Medicine

    Department of = Radiation Oncology

    Atlanta, GA 

     

    ------_=_NextPart_001_01C1AE84.6CA8C340-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 23:22:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YDzB-0007sw-00; Tue, 5 Feb 2002 23:22:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 83AB31112F1; Tue, 5 Feb 2002 23:15:41 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA03322 for linac-eng-list; Tue, 5 Feb 2002 15:51:09 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from glsmtp1 (glsmtp1-2.gundluth.org [204.69.147.16]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA03290 for ; Tue, 5 Feb 2002 15:51:07 -0600 (CST) From: aengstle@gundluth.org Subject: Re: MLC Communications Errors To: GARRYANGEL@aol.com Cc: linac-eng@plato1.aristotle.net X-Mailer: Lotus Notes Release 5.0.9 November 16, 2001 Message-ID: Date: Tue, 5 Feb 2002 15:49:18 -0600 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.9 |November 16, 2001) at 02/05/2002 03:53:20 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: aengstle@gundluth.org Subject: Re: MLC Communications Errors To: GARRYANGEL@aol.com Cc: linac-eng@plato1.aristotle.net Date: Tue, 5 Feb 2002 15:49:18 -0600 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.9 |November 16, 2001) at 02/05/2002 03:53:20 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We have found that separating our Impac/Varian from the rest of the network has been the best for eliminating intermittant Comm./MLC interlocks.There is really no need for the MLC workstation or Impac workstation to be doing anything but the job it was intended for.The only remaining problem is the having to boot up systems in the right order to re-establish communications when working on part of the system. Alan Engstler GARRYANGEL@aol.com Sent by: To: linac-eng@plato1.aristotle.net owner-linac-eng@plato1.ar cc: istotle.net Subject: MLC Communications Errors 02/05/02 12:22 PM Hi Everyone ... I have been following the MLC Comm issues posted here with interest. I have a 600C with 80 Leaf MLC with Impact and I am also experiencing an issue with a very brief and highly intermittent CLINAC COMM Controller I/L that is self clearing. It is my understanding that this is the Clinac comm of the Position Readouts to the MLC Controller. Both Com Boards have been replaced 600C and MLC computer. The problem occurs while the equipment is just sitting there. One question would be could this be a MLC problem or is it that the PRO data to the MLC is the problem. Again the serial comm I/F has been replaced without success. I also looked at the Network Neighborhood. Seems like the everyone and their brother is on the network. Shouldn't these systems be on dedicated networks? Any suggestions would be greatly appreciated. Thank you in advance. Garry 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 05 23:51:04 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YEQa-0007uS-00; Tue, 5 Feb 2002 23:51:04 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 14E7B1112F1; Tue, 5 Feb 2002 23:44:00 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id QAA07354 for linac-eng-list; Tue, 5 Feb 2002 16:36:16 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gondor.dpa.act.gov.au (gondor.dpa.act.gov.au [136.153.2.50]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA07347 for ; Tue, 5 Feb 2002 16:36:14 -0600 (CST) Received: (from smap@localhost) by gondor.dpa.act.gov.au (8.11.1/8.11.1) id g15Ma6v17657 for ; Wed, 6 Feb 2002 09:36:07 +1100 (EST) Received: from unknown(10.226.2.7) by gondor via smap (V5.5) id xmaa17621; Wed, 6 Feb 02 09:36:03 +1100 Received: by cal007.dpa.act.gov.au with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Feb 2002 09:35:43 +1000 Message-ID: From: "Caunt, Peter" To: "'Linac-Eng'" Subject: Varian MLC Date: Wed, 6 Feb 2002 09:35:43 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Caunt, Peter" To: "'Linac-Eng'" Subject: Varian MLC Date: Wed, 6 Feb 2002 09:35:43 +1000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Dear Listmembers, With discussions currently underway regarding the purchase of two MLC's (2100CD & 2300CD) the recent information in this area have been most interesting. In tapping the grey matter of those with the expertise, I am interested to know of the additional operational requirements associated with running two MLC's. * Are maintenance parts costings significient enough to be considered as additional recurrent costs ? * What is a reasonable additional manhours requirement to support the operations of two MLC's ? * Are there any particular support services/equipment necessary to keep things from falling apart ? In appreciation of any information available. Regards, Peter Caunt The Canberra Hospital Canberra, Australia. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 06 01:21:56 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YFqW-0007z5-00; Wed, 6 Feb 2002 01:21:56 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 991B01112F1; Wed, 6 Feb 2002 01:14:50 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id SAA10472 for linac-eng-list; Tue, 5 Feb 2002 18:05:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA10468 for ; Tue, 5 Feb 2002 18:05:31 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id SAA28821; Tue, 5 Feb 2002 18:01:49 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B58.00001F35 ; Tue, 5 Feb 2002 18:01:19 -0600 X-Lotus-FromDomain: MDACC To: "Caunt, Peter" Cc: "'Linac-Eng'" Message-ID: <86256B58.00001E34.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 5 Feb 2002 18:01:53 -0600 Subject: Re: Varian MLC Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Caunt, Peter" Cc: "'Linac-Eng'" Date: Tue, 5 Feb 2002 18:01:53 -0600 Subject: Re: Varian MLC Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Peter, the answers to those questions depend heavily upon two other questions: 1. Are you planning to do IMRT via DMLC? 2. Probably moot, but are they Millenium style or are they "Mark" style (not sure if you can even buy the "Mark" types anymore). If you are not doing DMLC, then this may not represent a significiant increase in resource needs. You will need to stock a few spare motors and whatnot, but they run pretty well as "block emulators". For our MLCs used in this fashion, it was basically a non-issue. If you are doing DMLC for a large fraction of your patients, be prepared to expend some additional resources. This is a less dramatic difference for the Milleniums than for the older design, but the "real" PM requirements increase, as does the motor failure rate. We currently have 2 Mark-style that are doing roughly 46 DMLC-IMRT cases per day (4 beams pers case, probably average 80 segments per beam). Our PM needs on these MLCs went from 8 hours per year to 40 hours per year with DMLC implementation. On the other hand, we now have 2 Millenium style units doing a smaller number of DMLC-IMRT cases (probably 25 each per day), and they may be as low as 24 hours per year in PM need. It is new enough that making a reasonable projection is difficult, but it looks pretty positive. Clearly, whatever they coat those new leaves with works pretty well in terms of self-lubrication. Early on, there were **numerous** motor failures, but with software changes and apropriate operational consideration (turning the things off at night), the "birthing" issues seem to have decreased a bit. Tim "Caunt, Peter" on 02/05/2002 05:35:43 PM To: "'Linac-Eng'" cc: (bcc: Timothy J. Waldron/MDACC) Subject: Varian MLC Dear Listmembers, With discussions currently underway regarding the purchase of two MLC's (2100CD & 2300CD) the recent information in this area have been most interesting. In tapping the grey matter of those with the expertise, I am interested to know of the additional operational requirements associated with running two MLC's. * Are maintenance parts costings significient enough to be considered as additional recurrent costs ? * What is a reasonable additional manhours requirement to support the operations of two MLC's ? * Are there any particular support services/equipment necessary to keep things from falling apart ? In appreciation of any information available. Regards, Peter Caunt The Canberra Hospital Canberra, Australia. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 06 10:53:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YOlU-00024z-00; Wed, 6 Feb 2002 10:53:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E3AFB1112F4; Wed, 6 Feb 2002 10:46:06 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id DAA24790 for linac-eng-list; Wed, 6 Feb 2002 03:33:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from eigg.abel.net.uk (eigg.abel.net.uk [195.72.113.1]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id DAA24782 for ; Wed, 6 Feb 2002 03:33:43 -0600 (CST) Received: (qmail 5151 invoked from network); 6 Feb 2002 09:30:35 -0000 Received: from ppp-3-184.5800-14.telinco.net (HELO rtphys) (212.1.150.184) by smtp0.abel.net.uk with SMTP; 6 Feb 2002 09:30:35 -0000 Message-ID: <013101c1aef1$033152c0$b89601d4@abel.co.uk> From: "Radiotherapy Physics - RSH" To: Subject: Disposal of MS-90 Cobalt Unit Date: Wed, 6 Feb 2002 09:31:09 -0000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_012E_01C1AEF1.029A42E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapy Physics - RSH" To: Subject: Disposal of MS-90 Cobalt Unit Date: Wed, 6 Feb 2002 09:31:09 -0000 Content-Type: multipart/alternative; boundary="----=_NextPart_000_012E_01C1AEF1.029A42E0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_012E_01C1AEF1.029A42E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear List We want to remove our old TEM MS-90 Cobalt Unit with source in the near = future. Has anyone got any recent experience of this and do they know of any = companies who still dispose of old Cobalt machines? We are based in the UK=20 Any info gratefully received. TIA John Macmillan Radiotherapy Physics Royal Shrewsbury Hospital UK ------=_NextPart_000_012E_01C1AEF1.029A42E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Dear List
     
    We want to remove our old TEM MS-90 = Cobalt Unit=20 with source in the near future.
     
    Has anyone got any recent experience of = this and do=20 they know of any companies who still dispose of old Cobalt=20 machines?
     
    We are based in the UK=20
     
    Any info gratefully = received.
     
    TIA
     
    John Macmillan
    Radiotherapy Physics
    Royal Shrewsbury Hospital
    UK
     
    ------=_NextPart_000_012E_01C1AEF1.029A42E0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 06 12:15:22 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YQ2s-0002y8-00; Wed, 6 Feb 2002 12:15:22 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0E1401112F1; Wed, 6 Feb 2002 12:08:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id EAA26037 for linac-eng-list; Wed, 6 Feb 2002 04:58:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA26033 for ; Wed, 6 Feb 2002 04:58:36 -0600 (CST) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 16YPlV-0005H2-00; Wed, 06 Feb 2002 10:57:25 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C5FE2C300012D42 for linac-eng@plato1.aristotle.net; Wed, 6 Feb 2002 10:57:25 +0000 Received: from WS0039.brighton-healthcare.nhs.uk (195.106.11.5) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C5FE19F00020E50 for linac-eng@plato1.aristotle.net; Wed, 6 Feb 2002 10:57:25 +0000 Received: from ntas024.brighton-healthcare.nhs.uk (unverified) by WS0039.brighton-healthcare.nhs.uk (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Wed, 6 Feb 2002 10:56:36 +0000 Received: by ntas024.brighton-healthcare.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Feb 2002 10:57:25 -0000 Message-ID: <0E1923616624CE4D8AFD52EA2AB718731EF2B7@w2ksvr007> From: "Marlow, Robert" To: "'linac-eng@plato1.aristotle.net'" Subject: linac scrap yards ? Date: Wed, 6 Feb 2002 10:57:22 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Marlow, Robert" To: "'linac-eng@plato1.aristotle.net'" Subject: linac scrap yards ? Date: Wed, 6 Feb 2002 10:57:22 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Good morning Looking at alternative companies that could remove a simulator, SL75/5 & ABB LA6 in the near future to make way for shiny new linacs. We've been quoted a price by a particular company but wondered who other centres have used ? Best regards Bob Robert Marlow - Senior Electronics Engineer Medical Physics Department, Royal Sussex County Hospital, Eastern Road, BRIGHTON, East Sussex, BN2 5BE, England. Phone ++44 (0) 1273 664537 Fax ++44 (0) 1273 664698 Email robert.marlow@brighton-healthcare.nhs.uk This message and any attachments to it is intended only for the individual or company to which it is addressed and may contain information which is privileged, confidential or prohibited from disclosure or unauthorised use. If the recipient of this transmission is not the intended recipient, or the employee or agent responsible for delivering such materials to the intended recipient, you are hereby notified that any use, any form of reproduction, dissemination, copying, disclosure, modification, distribution and/or publication of this e-mail message or its attachments other than by its intended recipient is strictly prohibited by the sender. If you have received it in error, please notify us immediately using the address postmaster@brighton-healthcare.nhs.uk and destroy the message and all copies in your possession. 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 06 14:27:38 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YS6s-0004LI-00; Wed, 6 Feb 2002 14:27:38 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BC99B1112F1; Wed, 6 Feb 2002 14:20:20 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA28912 for linac-eng-list; Wed, 6 Feb 2002 07:07:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f16.law4.hotmail.com [216.33.149.16]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA28907 for ; Wed, 6 Feb 2002 07:07:28 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 6 Feb 2002 05:06:55 -0800 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Wed, 06 Feb 2002 13:06:54 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato1.aristotle.net Subject: Salery Survey Date: Wed, 06 Feb 2002 13:06:54 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 06 Feb 2002 13:06:55.0356 (UTC) FILETIME=[26CF13C0:01C1AF0F] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato1.aristotle.net Subject: Salery Survey Date: Wed, 06 Feb 2002 13:06:54 +0000 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 06 Feb 2002 13:06:55.0356 (UTC) FILETIME=[26CF13C0:01C1AF0F] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Does anyone know or has anyone recently conducted a salery survey for the current going rate for Linac engineers in the USA. I would be interested in seeing how we at Shands compare the industry as a hole. It has been about 10 years since we have been rescheduled and I would think from what I have herd, we are somewhat below par for the industry Regards David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" linac-eng@plato1.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 06 16:30:44 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YU20-0005Q5-00; Wed, 6 Feb 2002 16:30:44 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0D2031112F1; Wed, 6 Feb 2002 16:23:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA03920 for linac-eng-list; Wed, 6 Feb 2002 08:53:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep41-svc.tin.it (imdns1.tin.it [212.216.176.237] (may be forged)) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA03916 for ; Wed, 6 Feb 2002 08:53:26 -0600 (CST) Received: from ragona ([212.171.116.37]) by fep41-svc.tin.it (InterMail vM.4.01.03.13 201-229-121-113) with SMTP id <20020206145247.NJAN18883.fep41-svc.tin.it@ragona> for ; Wed, 6 Feb 2002 15:52:47 +0100 Message-ID: <000e01c1af1d$d65cc180$2574abd4@ragona> From: "Silvia Anglesio" To: Subject: medical accelerator information Date: Wed, 6 Feb 2002 15:51:14 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C1AF26.1B72A200" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Silvia Anglesio" To: Subject: medical accelerator information Date: Wed, 6 Feb 2002 15:51:14 +0100 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C1AF26.1B72A200" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C1AF26.1B72A200 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'm a medical physicist working in the Radiotherapy Department of = University in Turin, Italy. We are going to dismiss our Therac 20 CGR = (than GE) linear accelerator. For dismission purpose I need to know = precisely something more about head material, expecially target and = flattening filter material. We have performed spectroscopical analysis = with NaI, but in target case the results are difficult to understand. = Can you help me ?=20 Thank you very much ! Silvia Anglesio Medical Physicist Radiotherapy Department University Turin (Italy) ------=_NextPart_000_000B_01C1AF26.1B72A200 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    I'm a medical physicist working in the = Radiotherapy=20 Department of University in Turin, Italy. We are going to dismiss our = Therac 20=20 CGR (than GE) linear accelerator. For dismission purpose I need to know=20 precisely something more about head material, expecially target and = flattening filter material. We have performed spectroscopical analysis = with NaI,=20 but in target case the results are difficult to understand. Can you help = me ?=20
    Thank you very much !
     
    Silvia Anglesio
    Medical Physicist
    Radiotherapy Department
    University
    Turin = (Italy)
    ------=_NextPart_000_000B_01C1AF26.1B72A200-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 00:25:31 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YbRT-0006fu-00; Thu, 7 Feb 2002 00:25:31 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id A0DBD1112F1; Thu, 7 Feb 2002 00:18:05 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id QAA01909 for linac-eng-list; Wed, 6 Feb 2002 16:44:38 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id QAA01902 for ; Wed, 6 Feb 2002 16:44:36 -0600 (CST) Received: (qmail 23442 invoked from network); 6 Feb 2002 22:44:01 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 6 Feb 2002 22:44:01 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Feb 2002 14:41:38 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA005CC26E2@SERVER20> From: Randy Wick To: "'Linac-Eng'" Subject: RE: Varian MLC Date: Wed, 6 Feb 2002 14:44:09 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy Wick To: "'Linac-Eng'" Subject: RE: Varian MLC Date: Wed, 6 Feb 2002 14:44:09 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We have a 120 leaf Millenium, about 9 months old. It was upgraded from an 80 leaf Millenium, so it is no longer in warranty. I would recommend getting a price for the extended spares kit (and perhaps a package price to double/triple up on some items). It seems that the parts for this device are quite expensive. I was quoted a price of $US 13,246 for the Motor Interconnect pcb, which are distinct for the two sides (though I haven't had to change it: has anyone else? maybe it's not needed as a spare). The power supply in the collimator seems to fail every 3-6 months, this is $US 3008. And the famous half-leaf motors are $US 179 ea, or second-source at $US 152. We have replaced 30 motors so far, but this may be unusually high. (Incidentally, we are not doing DMLC) Another thing, you should ensure that the Varian reps do a full cleaning early on, perhaps within 3 months. We only did this ourselves after 7 months, which is why (I think) we have had so many motor failures. It was pretty dirty for a system that should require virtually no lubrication. And when I say full, I mean that the carriages are removed, and all the leaves pulled completely out. Get them to do a test, called "diagLeafPWMTestAll" before and after and save the data for reference. Even if the results look good before cleaning, I would insist on a full cleaning at least sometime during warranty. This is not a small job, our experience is that it takes 2 people around 6 hours to do it. Whether this will have to be done every year, we haven't had our unit long enough to tell. If it does, that is a lot of extra PM time in a year (and there are other PM tasks that should be done on the Millenium as well). In my opinion, the required PM time (exluding repairs) is about equal to the Clinac. ----------------------------------- Randy Wick Radiotherapy Service Fraser Valley Cancer Centre Surrey, BC Canada > -----Original Message----- > From: twaldron@mail.mdanderson.org > [mailto:twaldron@mail.mdanderson.org] > Sent: Tuesday, February 05, 2002 4:02 PM > To: Caunt, Peter > Cc: 'Linac-Eng' > Subject: Re: Varian MLC > > > > > Peter, the answers to those questions depend heavily upon two > other questions: > 1. Are you planning to do IMRT via DMLC? > 2. Probably moot, but are they Millenium style or are they > "Mark" style (not > sure if you can even buy the "Mark" types anymore). > > If you are not doing DMLC, then this may not represent a > significiant increase > in resource needs. You will need to stock a few spare motors > and whatnot, but > they run pretty well as "block emulators". For our MLCs used > in this fashion, > it was basically a non-issue. > > If you are doing DMLC for a large fraction of your patients, > be prepared to > expend some additional resources. This is a less dramatic > difference for the > Milleniums than for the older design, but the "real" PM > requirements increase, > as does the motor failure rate. > > We currently have 2 Mark-style that are doing roughly 46 > DMLC-IMRT cases per day > (4 beams pers case, probably average 80 segments per beam). > Our PM needs on > these MLCs went from 8 hours per year to 40 hours per year with DMLC > implementation. > On the other hand, we now have 2 Millenium style units doing > a smaller number of > DMLC-IMRT cases (probably 25 each per day), and they may be > as low as 24 hours > per year in PM need. It is new enough that making a > reasonable projection is > difficult, but it looks pretty positive. > Clearly, whatever they coat those new leaves with works > pretty well in terms of > self-lubrication. Early on, there were **numerous** motor > failures, but with > software changes and apropriate operational consideration > (turning the things > off at night), the "birthing" issues seem to have decreased a bit. > > Tim > > > > > "Caunt, Peter" on 02/05/2002 05:35:43 PM > > To: "'Linac-Eng'" > cc: (bcc: Timothy J. Waldron/MDACC) > > Subject: Varian MLC > > > > Dear Listmembers, > With discussions currently underway > regarding the purchase > of two MLC's (2100CD & 2300CD) the recent information in > this area have > been most interesting. > > In tapping the grey matter of those with the expertise, I am > interested to > know of the additional operational requirements associated > with running two > MLC's. > > * Are maintenance parts costings significient enough to be > considered as > additional recurrent costs ? > * What is a reasonable additional manhours requirement to support the > operations of two MLC's ? > * Are there any particular support services/equipment > necessary to keep > things from falling apart ? > > In appreciation of any information available. > > Regards, > > Peter Caunt > The Canberra Hospital > Canberra, Australia. > > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 02:07:33 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Yd2D-0006p5-00; Thu, 7 Feb 2002 02:07:33 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7D3161112F1; Thu, 7 Feb 2002 02:00:03 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id SAA08983 for linac-eng-list; Wed, 6 Feb 2002 18:36:21 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from picton-ext.nt.tas.gov.au (picton-ext.nt.tas.gov.au [202.7.15.63]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA08977 for ; Wed, 6 Feb 2002 18:36:17 -0600 (CST) Received: from picton-ext.nt.tas.gov.au (localhost [127.0.0.1]) by picton-ext.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g170aB507532 for ; Thu, 7 Feb 2002 11:36:12 +1100 (EST) Received: from dchs6305.dchs.tas.gov.au ([147.109.23.26]) by picton-ext.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g170aAj07515 for ; Thu, 7 Feb 2002 11:36:10 +1100 (EST) Received: by DCHS6305 with Internet Mail Service (5.5.2653.19) id ; Thu, 7 Feb 2002 11:36:10 +1100 Message-ID: From: Causby Damian To: "'linac-eng@plato1.aristotle.net'" Subject: fibreglass and carbon fibre products Date: Thu, 7 Feb 2002 11:36:05 +1100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Causby Damian To: "'linac-eng@plato1.aristotle.net'" Subject: fibreglass and carbon fibre products Date: Thu, 7 Feb 2002 11:36:05 +1100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk some one was looking for the boat manufacturer that makes carbon fibre products for Linac couches mirage yachts Queensland www.mirageyachts.com.au Damian Causby Engineering Operations Manager Dept of Radiation Oncology Launceston General Hospital Ph 63487151 Mob 0417351930 damian.causby@dchs.tas.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 02:25:28 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YdJX-0006rm-00; Thu, 7 Feb 2002 02:25:27 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 37FAF1112F1; Thu, 7 Feb 2002 02:17:59 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id SAA09806 for linac-eng-list; Wed, 6 Feb 2002 18:49:17 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm12.texas.rr.com ([24.93.35.43]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA09800 for ; Wed, 6 Feb 2002 18:49:11 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm12.texas.rr.com (8.12.1/8.12.0) with ESMTP id g170l5Bp009316 for ; Wed, 6 Feb 2002 18:47:07 -0600 From: "Thomas McCausland" To: "'Linac-Eng'" Date: Wed, 6 Feb 2002 18:48:32 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: RE: Varian MLC Reply-To: acceltek@acceltekservice.com Message-ID: <3C617A80.21407.2204D18@localhost> In-reply-to: <6BAF4D075F07D411B30900508B94CBA005CC26E2@SERVER20> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: "'Linac-Eng'" Date: Wed, 6 Feb 2002 18:48:32 -0600 Content-type: text/plain; charset=US-ASCII Subject: RE: Varian MLC Reply-To: acceltek@acceltekservice.com In-reply-to: <6BAF4D075F07D411B30900508B94CBA005CC26E2@SERVER20> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk From: Randy Wick To: "'Linac-Eng'" Subject: RE: Varian MLC Date sent: Wed, 6 Feb 2002 14:44:09 -0800 > We have a 120 leaf Millenium, about 9 months old. ----------------- Large Snip ------------------------------ In my opinion, the > required PM time (exluding repairs) is about equal to the Clinac. > > ----------------------------------- > Randy Wick Radiotherapy Service > > Randy, Just curious, out of the total downtime that you see on your machine in a year, how much is due to the MLC and how much due to the linac? Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 08:50:18 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YjJy-0001cZ-00; Thu, 7 Feb 2002 08:50:18 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id DC19A1112F1; Thu, 7 Feb 2002 08:42:44 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id BAA24017 for linac-eng-list; Thu, 7 Feb 2002 01:28:55 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m05.mx.aol.com (imo-m05.mx.aol.com [64.12.136.8]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA24013 for ; Thu, 7 Feb 2002 01:28:54 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-m05.mx.aol.com (mail_out_v31_r1.26.) id c.82.17348e29 (3968) for ; Thu, 7 Feb 2002 02:28:18 -0500 (EST) Message-ID: <82.17348e29.29938692@aol.com> Date: Thu, 7 Feb 2002 02:28:18 EST Subject: E-Cone latches To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 120 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Thu, 7 Feb 2002 02:28:18 EST Subject: E-Cone latches To: linac-eng@plato1.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Everyone, I've noticed that the Electron cone latches that hold in the "plate" on the Varian E-cones can get somewhat "sloppy" after a while. Is there a better solution than the rubber spring pads to give it a more positive latch. Any suggestions would be greatly appreciated. Garry 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 16:46:06 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YqkQ-0001JU-00; Thu, 7 Feb 2002 16:46:06 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 34CE31112F1; Thu, 7 Feb 2002 16:38:25 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA06063 for linac-eng-list; Thu, 7 Feb 2002 09:04:07 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gatekeeper.n-i.nhs.uk (gatekeeper.n-i.nhs.uk [194.168.231.1]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id JAA06055 for ; Thu, 7 Feb 2002 09:04:04 -0600 (CST) Received: by gatekeeper.n-i.nhs.uk; (5.65v4.0/1.3/10May95) id AA10090; Thu, 7 Feb 2002 15:03:59 GMT Received: by n-i.nhs.uk; id NAA21627; Thu, 7 Feb 2002 13:42:54 GMT Received: by hpssfw.n-i.nhs.uk; id OAA28845; Thu, 7 Feb 2002 14:59:29 GMT Received: from relay.hpss.n-i.nhs.uk(141.97.247.221) by hpssfw.n-i.nhs.uk via smap (V5.5) id xma028520; Thu, 7 Feb 02 14:58:29 GMT Received: from nplex.n-i.nhs.uk (nplex.n-i.nhs.uk [141.97.247.191]) by relay.hpss.n-i.nhs.uk (8.9.3/8.9.3) with ESMTP id PAA28412 for ; Thu, 7 Feb 2002 15:03:46 GMT Received: from nirmpa.n-i.nhs.uk (141.97.60.200) by nplex.n-i.nhs.uk (NPlex 6.0.021) id 3C4D49DF00000BE8 for linac-eng@plato1.aristotle.net; Thu, 7 Feb 2002 15:01:51 +0000 Received: from Spooler by nirmpa.n-i.nhs.uk (Mercury/32 v3.30) ID MO00116E; 7 Feb 02 15:02:05 -0000 Received: from spooler by nirmpa.n-i.nhs.uk (Mercury/32 v3.30); 7 Feb 02 15:01:39 -0000 Received: from physics-malgie (141.97.60.121) by nirmpa.n-i.nhs.uk (Mercury/32 v3.30) ID MG00116C; 7 Feb 02 15:01:29 -0000 Reply-To: From: "Malcolm Algie" To: Subject: Re: Varian ETR heidi couch Date: Thu, 7 Feb 2002 15:01:46 -0000 Message-Id: <000001c1afe8$5de75640$793c618d@physics-malgie> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-Msmail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 Importance: Normal Disposition-Notification-To: "Malcolm Algie" X-Mimeole: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Malcolm Algie" To: Subject: Re: Varian ETR heidi couch Date: Thu, 7 Feb 2002 15:01:46 -0000 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-Msmail-Priority: Normal Importance: Normal Disposition-Notification-To: "Malcolm Algie" X-Mimeole: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk To List, We have been having problems with the floor rotation gearboxes on the turntable assembly for the Heidi couch. For the past number of years we have been going through gearboxes as a regular occurrence. When we have replaced the gearbox and set up the clutch assembly, so that it slips when the couch meets an obstacle, all seems fine for about three weeks then we get a call that there is no floor rotation! Gearbox pins have sheared. We believe that the Radiographers are pushing the couch but they deny it. My query is: Has anyone else experienced this problem and if so has anyone been able to come up with a fix which prevents us having to pull the pit every time to replace a gearbox. Malcolm Algie Engineering Services Manager Belvoir Park Hospital Belfast BT8 8JR 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 19:32:18 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YtLG-00022G-00; Thu, 7 Feb 2002 19:32:18 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 244961112F1; Thu, 7 Feb 2002 19:24:35 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA18663 for linac-eng-list; Thu, 7 Feb 2002 12:06:20 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m10.mx.aol.com (imo-m10.mx.aol.com [64.12.136.165]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA18658 for ; Thu, 7 Feb 2002 12:06:19 -0600 (CST) From: RCPYLUT@aol.com Received: from RCPYLUT@aol.com by imo-m10.mx.aol.com (mail_out_v31_r1.26.) id c.163.86ef72e (3968) for ; Thu, 7 Feb 2002 13:05:44 -0500 (EST) Message-ID: <163.86ef72e.29941bf8@aol.com> Date: Thu, 7 Feb 2002 13:05:44 EST Subject: ETR couch To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: RCPYLUT@aol.com Date: Thu, 7 Feb 2002 13:05:44 EST Subject: ETR couch To: linac-eng@plato1.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We had a similar situation with our s/n 18 (2300cd). It was noticed that the time before the audible "clunk" of the brake release was getting longer + the couch was moving 20 to 30 degrees before the brake release. Adjusting the brake, replacing the brake had little or no effect. We decided to change the metal track that the brake contacts on the off chance it had become magnetized. Degaussing the old one didn't seem to work but, the new one works like a dream. Tom B. Diel SAMC Cancer Center Fresno, CA. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 20:22:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Yu7h-00027C-00; Thu, 7 Feb 2002 20:22:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1938B1112F2; Thu, 7 Feb 2002 20:14:36 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA24117 for linac-eng-list; Thu, 7 Feb 2002 13:05:23 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24113 for ; Thu, 7 Feb 2002 13:05:21 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g17J4nD02259; Thu, 7 Feb 2002 14:04:49 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B59.00645362 ; Thu, 7 Feb 2002 13:15:49 -0500 X-Lotus-FromDomain: LRCC To: malcolm.algie@nirmpa.n-i.nhs.uk Cc: linac-eng@plato1.aristotle.net Message-ID: <85256B59.006451A4.00@mail.lrcc.on.ca> Date: Thu, 7 Feb 2002 13:15:44 -0500 Subject: Re: Varian ETR heidi couch Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: malcolm.algie@nirmpa.n-i.nhs.uk Cc: linac-eng@plato1.aristotle.net Date: Thu, 7 Feb 2002 13:15:44 -0500 Subject: Re: Varian ETR heidi couch Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Those old couches are a real pain, we've got 3 of them here and they are a pain every couple of years. It is pretty tough on those gear boxes when the therapists run the couch full tilt clockwise and then crank it full tilt counter clockwise. That pin in the mitre pack just won't take too much of that. Specify a VEO couch when you are in the market for a new machine. The VEO Couch has a different couch rotation mechanism. There is a light wooden cover over the pit. It is light enough that one person can remove it. We've had one machine with a VEO couch now for 6 years without any problems (Well not with the rotation part anyway) The VEO couch pit is a much larger diameter than an old ETR couch so there is no easy way to retrofit one in which is too bad. Good Luck Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 20:43:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YuSA-00029i-00; Thu, 7 Feb 2002 20:43:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 253C01112F1; Thu, 7 Feb 2002 20:35:46 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA26938 for linac-eng-list; Thu, 7 Feb 2002 13:26:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scmcmail.st-claire.org ([63.76.91.90]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA26931 for ; Thu, 7 Feb 2002 13:26:27 -0600 (CST) Received: by SCMCMAIL with Internet Mail Service (5.5.2650.21) id ; Thu, 7 Feb 2002 14:25:37 -0500 Message-ID: <567B4C40AC2ED411BB2300B0D021D9BA013BB16D@SCMCMAIL> From: "Conn, Calvin R." To: "'linac-eng@plato1.aristotle.net'" Subject: Depleted Uranium weight Date: Thu, 7 Feb 2002 14:25:36 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Conn, Calvin R." To: "'linac-eng@plato1.aristotle.net'" Subject: Depleted Uranium weight Date: Thu, 7 Feb 2002 14:25:36 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello all, I have been asked by our state regulatory agency about the amount of depleted uranium in our Varian 6/100. Does anyone know and have you ever had to find that information for your state agency? I have called Technical Options of GA and they are getting that info for me. I appreciate that assistance from them, but, have any of you needed to provide this before? Calvin R. Conn cconn@kih.net 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 07 20:54:36 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Yucu-0002Ad-00; Thu, 7 Feb 2002 20:54:36 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 749DB1112F1; Thu, 7 Feb 2002 20:46:51 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA28418 for linac-eng-list; Thu, 7 Feb 2002 13:38:13 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA28408 for ; Thu, 7 Feb 2002 13:38:11 -0600 (CST) Received: from msgia.hs.uab.edu (gw5.uabmc.edu [10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA1221 for ; Thu, 7 Feb 2002 13:35:12 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Thu, 07 Feb 2002 13:37:25 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Thu, 07 Feb 2002 13:37:19 -0600 From: "Stephen Jordan" To: Subject: Co60 source needed Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 07 Feb 2002 13:37:19 -0600 From: "Stephen Jordan" To: Subject: Co60 source needed Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We are in need of a Cobalt 60 source for our Picker C9. It is used for research in our dept. The only requirements are that it is less than three years old and /or provides 80 cgy/min @ isocenter..any help would be appreciated! Steve Jordan UAB Rad Phy 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 01:55:08 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16YzJk-0002cJ-00; Fri, 8 Feb 2002 01:55:08 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 297421112F1; Fri, 8 Feb 2002 01:47:19 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id SAA28715 for linac-eng-list; Thu, 7 Feb 2002 18:35:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gondor.dpa.act.gov.au (gondor.dpa.act.gov.au [136.153.2.50]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA28704 for ; Thu, 7 Feb 2002 18:34:58 -0600 (CST) Received: (from smap@localhost) by gondor.dpa.act.gov.au (8.11.1/8.11.1) id g180Ytd10775 for ; Fri, 8 Feb 2002 11:34:55 +1100 (EST) Received: from unknown(10.226.2.7) by gondor via smap (V5.5) id xma010731; Fri, 8 Feb 02 11:34:47 +1100 Received: by cal007.dpa.act.gov.au with Internet Mail Service (5.5.2653.19) id ; Fri, 8 Feb 2002 11:34:26 +1000 Message-ID: From: "Caunt, Peter" To: "'Linac-Eng'" Subject: Varian ETR heidi couch Date: Fri, 8 Feb 2002 11:34:24 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Caunt, Peter" To: "'Linac-Eng'" Subject: Varian ETR heidi couch Date: Fri, 8 Feb 2002 11:34:24 +1000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Malcom, Isn't pit pulling a fun activity. Yes, familiar with this problem - often a lot easier to change the engineering than the behaviour. I am aware that some centres have removed the couch drive assembly as the therapists prefer to manually move the couch themselves. Provided the clutch is adjusted correctly you might consider the following modification. The gearboxes and roll pin can be replaced - requires the manufacture of a tool to remove the circular end seals. When replacing the roll-pin you can increase the sheer limit by inserting the main roll pin and then adding a suitable secondary (thinner) roll-pin. In this case anecdotal evidence indicates that the pin will still sheer under excess loading but the incidence of failure was greatly reduced. I have not observed gear teeth failure using this modification. Hope this helps, good luck and enjoy. Regards, Peter Caunt Radiation Oncology Canberra, Australia. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 04:19:33 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Z1ZV-0002pw-00; Fri, 8 Feb 2002 04:19:33 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id ACF3C1112F1; Fri, 8 Feb 2002 04:11:41 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id VAA07439 for linac-eng-list; Thu, 7 Feb 2002 21:00:40 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from barry.mail.mindspring.net (barry.mail.mindspring.net [207.69.200.25]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA07433 for ; Thu, 7 Feb 2002 21:00:39 -0600 (CST) Received: from pmnort1-187.rconnect.com ([209.163.34.187] helo=rconnect.com) by barry.mail.mindspring.net with esmtp (Exim 3.33 #1) id 16Z1H6-0004Su-00; Thu, 07 Feb 2002 22:00:33 -0500 Message-ID: <3C633F50.C908F204@rconnect.com> Date: Thu, 07 Feb 2002 21:00:32 -0600 From: Paul Miller X-Mailer: Mozilla 4.75 [en]C-CCK-MCD RURAL CONNECTIONS (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: "Conn, Calvin R." Cc: "'linac-eng@plato1.aristotle.net'" Subject: Re: Depleted Uranium weight References: <567B4C40AC2ED411BB2300B0D021D9BA013BB16D@SCMCMAIL> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 07 Feb 2002 21:00:32 -0600 From: Paul Miller X-Accept-Language: en To: "Conn, Calvin R." Cc: "'linac-eng@plato1.aristotle.net'" Subject: Re: Depleted Uranium weight Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I think I might call the big V on this one. I would think they would be the best source. Paul "Conn, Calvin R." wrote: > Hello all, > > I have been asked by our state regulatory agency about the amount of > depleted uranium in our Varian 6/100. Does anyone know and have you ever had > to find that information for your state agency? I have called Technical > Options of GA and they are getting that info for me. I appreciate that > assistance from them, but, have any of you needed to provide this before? > > Calvin R. Conn > cconn@kih.net 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 14:44:04 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZBJs-00011C-00; Fri, 8 Feb 2002 14:44:04 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3CE711112F2; Fri, 8 Feb 2002 14:36:03 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA21618 for linac-eng-list; Fri, 8 Feb 2002 07:21:33 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mx1.snet.net (mx1.snet.net [204.60.203.21]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA21613 for ; Fri, 8 Feb 2002 07:21:31 -0600 (CST) Received: from INSPIRON (53.126.252.64.snet.net [64.252.126.53] (may be forged)) by mx1.snet.net (8.12.1/8.12.1/SNET-smtp-1.1/D-1.1/O-1.1) with ESMTP id g18DLswM018101; Fri, 8 Feb 2002 08:21:56 -0500 (EST) Reply-To: From: "Martin Shapiro" To: "Conn, Calvin R." , Subject: RE: Depleted Uranium weight Date: Fri, 8 Feb 2002 08:20:34 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 In-reply-to: <567B4C40AC2ED411BB2300B0D021D9BA013BB16D@SCMCMAIL> Importance: Normal Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Martin Shapiro" To: "Conn, Calvin R." , Subject: RE: Depleted Uranium weight Date: Fri, 8 Feb 2002 08:20:34 -0500 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 In-reply-to: <567B4C40AC2ED411BB2300B0D021D9BA013BB16D@SCMCMAIL> Importance: Normal Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Varian lists the following quantities of DU for 6/100, 4/100 and 600C. Primary collimator- 96lbs Faceplate shield- 17lbs Gun shield disk (3) 40lbs for a total of 233lbs. Marty Shapiro -----Original Message----- From: owner-linac-eng@plato1.aristotle.net [mailto:owner-linac-eng@plato1.aristotle.net]On Behalf Of Conn, Calvin R. Sent: Thursday, February 07, 2002 2:26 PM To: 'linac-eng@plato1.aristotle.net' Subject: Depleted Uranium weight Hello all, I have been asked by our state regulatory agency about the amount of depleted uranium in our Varian 6/100. Does anyone know and have you ever had to find that information for your state agency? I have called Technical Options of GA and they are getting that info for me. I appreciate that assistance from them, but, have any of you needed to provide this before? Calvin R. Conn cconn@kih.net 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 17:10:46 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZDbq-000290-00; Fri, 8 Feb 2002 17:10:46 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7721C1112F1; Fri, 8 Feb 2002 17:02:43 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA29775 for linac-eng-list; Fri, 8 Feb 2002 09:39:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA29771 for ; Fri, 8 Feb 2002 09:39:29 -0600 (CST) Received: from msgia.hs.uab.edu (gw5.uabmc.edu [10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA145F for ; Fri, 8 Feb 2002 09:36:29 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Fri, 08 Feb 2002 09:38:47 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Fri, 08 Feb 2002 09:38:34 -0600 From: "Stephen Jordan" To: , Subject: Re: Low dose rate on Varian 2100C Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 08 Feb 2002 09:38:34 -0600 From: "Stephen Jordan" To: , Subject: Re: Low dose rate on Varian 2100C Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I'd like to be copied on the responses to Carl's question, please. I have a 2100C sn 078 C1 (analog Gun Deck)that is experiencing the same sort of trouble....I think it may be the Gun Trig Delay board...either way, I need to learn more about t'shooting techniques with the Gun Driver..Thanks! Steve Jordan UAB Rad Phys >>> "Carl Murphy " 02/08/02 07:05AM >>> Hi Folks: 2100C S/N 708 C3 Digital Gun & T-Drive. Low dose rate on all electrons (4,6,9,12 MeV) and 6X. Klystron is due to be saturated. Will perform this weekend. Not sure if that is the problem yet. Looked at some waveforms: one thing I noticed when viewing GUN I at RR# (240mu/min): I see the GUN I pulse falling within the RFDRV pulse. My understanding is the GUN I pulse should be on the trailing edge of the RFDRV pulse. I read through some notes I had from a few years ago stating that. When I view these pulses, I am getting a GUN I pulse during the RFDRV pulse, however, it is flashing in and out of the RFDRV pulse. I am not sure if this is a non-coincident pulse I am seeing. The thing is, if I adjust console Gun Delay, the pulse appears within the RFDRV pulse all of the time and I get out the dose rate I need and it comes up right away, rather than being sluggish. I guess what I'd like to know, is that pulse supposed to appear all of the time in RR3? When I adjust the console gun delay, am I only placing more coincident pulses in with the RF pulse? Any suggestions would be appreciated. Regards, Carl Murphy _________________________________ Carl Murphy, C.E.T. Linear Accelerator Service Technologist Medical Physics Department Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax, Nova Scotia, Canada Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: raw-text-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 17:36:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZE0z-0002Au-00; Fri, 8 Feb 2002 17:36:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2833D1112F1; Fri, 8 Feb 2002 17:28:42 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA02011 for linac-eng-list; Fri, 8 Feb 2002 10:16:58 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail_server.msa.eun.eg ([212.12.244.131]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA02003 for ; Fri, 8 Feb 2002 10:16:56 -0600 (CST) Message-Id: <200202081616.KAA02003@plato1.aristotle.net> Received: from QRJATYDI (SERVER [211.75.225.76]) by mail_server.msa.eun.eg with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id D6WBP2T1; Sat, 9 Feb 2002 04:37:40 +0200 From: "Jay" <4InkToner100@excite.com> To: User@plato1.aristotle.net Subject: Inkjets & Laser Cartridges Save - Buy From The Manufacture X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MMailer v3.0 Date: Thu, 7 Feb 2002 23:21:44 +-0800 Mime-Version: 1.0 Content-Type: text/html; charset="Windows-1251" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Jay" <4InkToner100@excite.com> To: User@plato1.aristotle.net Subject: Inkjets & Laser Cartridges Save - Buy From The Manufacture X-Priority: 3 X-MSMail-Priority: Normal Date: Thu, 7 Feb 2002 23:21:44 +-0800 Content-Type: text/html; charset="Windows-1251" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk At www.tonerbuys.com, the Internet's premier source for your
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    1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 23:10:29 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZJDx-0002TR-00; Fri, 8 Feb 2002 23:10:29 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 865571112F1; Fri, 8 Feb 2002 23:02:20 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA08402 for linac-eng-list; Fri, 8 Feb 2002 15:46:23 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA08386 for ; Fri, 8 Feb 2002 15:46:20 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Fri, 8 Feb 2002 13:45:49 -0800 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Equipment for Sale Date: Fri, 8 Feb 2002 13:45:18 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Equipment for Sale Date: Fri, 8 Feb 2002 13:45:18 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We are in the process of building a new department and will be decomissioning our Varian Cl2100c, CL-4, and Toshiba simulator in June. If anyone is interested in these machines please respond back. I will give the vital statistics on each and if you are interested I will get you in contact with our chief technologist. Thanks, Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 09 01:46:43 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZLf9-0002bZ-00; Sat, 9 Feb 2002 01:46:43 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E16751112F1; Sat, 9 Feb 2002 01:38:32 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id SAA00574 for linac-eng-list; Fri, 8 Feb 2002 18:27:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.primex.co.uk (smtp.primex.co.uk [213.165.147.50]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA00568 for ; Fri, 8 Feb 2002 18:27:35 -0600 (CST) Received: from oemcomputer (dialup88.primex.co.uk [195.157.34.88]) by smtp.primex.co.uk (8.11.6/8.11.6) with SMTP id g190SRD01479 for ; Sat, 9 Feb 2002 00:28:27 GMT Message-ID: <00ab01c1b101$1a6b2e40$58229dc3@oemcomputer> From: "Chris Usher" To: References: <4F756D76DDBDE147A1CE1643F3764F7404CA47@atlas.ullevaal.uus.no> Subject: Re: Depleted Uranium weight Date: Sat, 9 Feb 2002 00:22:24 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Usher" To: Subject: Re: Depleted Uranium weight Date: Sat, 9 Feb 2002 00:22:24 -0000 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk >From memory it is 100kg, but may be wrong on that - and you are very fortunate if you don't have to pay someone a huge amount of money to take it away. Chris > > IKKE SENSITIVT INNHOLD > > We just got rid of our 6/100 and we gave the uranium to the responsible > here at the hospital for disposal. I have no idea how much it was, all I > know is that it was very heavy. We didn't get anything for it. > > > > Best regards, > Anne Berit Haugsnes > > Med. Engineer > Dept. of Oncology > Ulleval University Hospital > Oslo, Norway > +47 23016538 > ----------------------------------- > Nils Lauritssønsvei 27a > 0854 Oslo, Norway > mob:+47 47638251 > > > > -----Opprinnelig melding----- > Fra: Conn, Calvin R. [mailto:CRConn@st-claire.org] > Sendt: 7. februar 2002 20:26 > Til: 'linac-eng@plato1.aristotle.net' > Emne: Depleted Uranium weight > > > Hello all, > > I have been asked by our state regulatory agency about the > amount of > depleted uranium in our Varian 6/100. Does anyone know and have you ever > had > to find that information for your state agency? I have called Technical > Options of GA and they are getting that info for me. I appreciate that > assistance from them, but, have any of you needed to provide this > before? > > Calvin R. Conn > cconn@kih.net > > > ********************************************************************** > This footnote confirms that this email message has been swept > for the presence of computer viruses. > ********************************************************************** 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 09 06:00:09 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZPcP-0002nj-00; Sat, 9 Feb 2002 06:00:09 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B5CB11112F1; Sat, 9 Feb 2002 05:51:54 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA11631 for linac-eng-list; Fri, 8 Feb 2002 22:41:54 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp01.hutchcity.com (cyan.hutchcity.com [202.45.84.86]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id WAA11626 for ; Fri, 8 Feb 2002 22:41:51 -0600 (CST) Received: (qmail 11271 invoked from network); 9 Feb 2002 04:41:47 -0000 Received: from unknown (HELO webmail02) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 9 Feb 2002 04:41:47 -0000 Message-ID: <8307583.1013229531297.JavaMail.root@webmail02> Date: Sat, 9 Feb 2002 12:38:51 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Backup Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 9 Feb 2002 12:38:51 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Backup Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Got a simple question. Just found out that could not use the backup option in Physics Mode to backup "Checkout logs", "Dynamic logs", and "Event logs". When I use any of the above options, I got the error message of "FILES NOT FOUND". All the log files still resides in their respective directory. Recently got software upgrade (adding user e option). Current Console software version is 6.1. Any idea? Jonathan Chan Queen Mary Hospital HONG KONG 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 09 07:15:55 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZQnj-00030M-00; Sat, 9 Feb 2002 07:15:55 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 23FEF1112F1; Sat, 9 Feb 2002 07:07:39 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id XAA15851 for linac-eng-list; Fri, 8 Feb 2002 23:59:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from relay1.bt.net (relay1.bt.net [194.72.6.100]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA15847 for ; Fri, 8 Feb 2002 23:59:32 -0600 (CST) From: gfj36547@yahoo.com Received: from mail.zenart.co.uk ([62.6.252.99] helo=zenserver.zendom) by relay1.bt.net with esmtp (Exim 3.22 #1) id 16ZQWm-0002Cy-00; Sat, 09 Feb 2002 05:58:24 +0000 Received: from mx1.mail.yahoo.com (dsl-212-135-210-194.dsl.easynet.co.uk [212.135.210.194]) by zenserver.zendom with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.1960.3) id 1JR7X3JX; Sat, 9 Feb 2002 06:11:51 -0000 Message-ID: <0000371119e3$000024e9$00003c81@mx1.mail.yahoo.com> To: Subject: start a $5000/mon home business Date: Sat, 09 Feb 2002 00:59:08 -1700 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: gfj36547@yahoo.com To: Subject: start a $5000/mon home business Date: Sat, 09 Feb 2002 00:59:08 -1700 Content-Type: text/plain; charset="Windows-1252" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Revolutionary home based business that can make you over $5000 per month in as little as 6 months. 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Please fill out a simple form at http://www.insuredlegal.com/bizopp/ and get your free information on several most lucrative home based business with absolutely no obligation! 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Feb 11 15:05:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16aH57-00039m-00; Mon, 11 Feb 2002 15:05:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 95D281112F1; Mon, 11 Feb 2002 14:56:14 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id HAA21452 for linac-eng-list; Mon, 11 Feb 2002 07:50:25 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA21448 for ; Mon, 11 Feb 2002 07:50:23 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2650.21) id <1W7C55VW>; Mon, 11 Feb 2002 14:50:15 +0100 Message-ID: To: linac-eng@plato1.aristotle.net Subject: Varian Portal Vision faults Date: Mon, 11 Feb 2002 14:50:12 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato1.aristotle.net Subject: Varian Portal Vision faults Date: Mon, 11 Feb 2002 14:50:12 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi linactroublehunters, We do have an interesting problem with our two PV units. - Mostly we see horizontal black&gray lines, both in normal use and when taking capacitance images. - Sometimes we see a 'capacitance' image when we try to make a patient image. - 17 jan: fault started at 1 unit (intermittend) - 18 jan: swapped IDU's (cassettes): fault disapeared 3 weeks. (we didn't check the faulty cassette in the good unit) - 6 feb: fault came back at 'faulty' unit & 'good' cassette. - 8 feb: check 'faulty' cassette at 'good' unit > good images. - 11 feb: same fault at both units. It seems that the fault comes up a few hours after we put the systems on. (when we shut down the system for a while we can take some good images before the fault starts) In case you think of a tricky cable: The fault starts even when we don't do any motion at P.V.-arm or Clinac. All sugestions are welcome. (fot those who are interested: ask for an image of the fault) Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Feb 11 17:13:36 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16aJ5E-0004MQ-00; Mon, 11 Feb 2002 17:13:36 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 427FB1112F1; Mon, 11 Feb 2002 17:04:27 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA24664 for linac-eng-list; Mon, 11 Feb 2002 09:13:56 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id JAA24660 for ; Mon, 11 Feb 2002 09:13:54 -0600 (CST) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Mon, 11 Feb 2002 16:12:49 +0100 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Mon, 11 Feb 2002 16:12:49 +0100 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A67E@exchange-5.orebroll.se> To: CJ.de.Bruijne@walcheren.ziekenhuis.nl, linac-eng@plato1.aristotle.net Subject: SV: Varian Portal Vision faults Date: Mon, 11 Feb 2002 16:12:42 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA24661 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: CJ.de.Bruijne@walcheren.ziekenhuis.nl, linac-eng@plato1.aristotle.net Subject: SV: Varian Portal Vision faults Date: Mon, 11 Feb 2002 16:12:42 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA24661 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi, We've just had exactly the same fault. The problem was with a power supply section in the cassette. Eventually a small transformer and two transistors went up in smoke on the HV board. After this the fault became a permanent capacitance image. Tel. -----Ursprungligt meddelande----- Från: CJ.de.Bruijne@walcheren.ziekenhuis.nl [mailto:CJ.de.Bruijne@walcheren.ziekenhuis.nl] Skickat: den 11 februari 2002 14:50 Till: linac-eng@plato1.aristotle.net Ämne: Varian Portal Vision faults Hi linactroublehunters, We do have an interesting problem with our two PV units. - Mostly we see horizontal black&gray lines, both in normal use and when taking capacitance images. - Sometimes we see a 'capacitance' image when we try to make a patient image. - 17 jan: fault started at 1 unit (intermittend) - 18 jan: swapped IDU's (cassettes): fault disapeared 3 weeks. (we didn't check the faulty cassette in the good unit) - 6 feb: fault came back at 'faulty' unit & 'good' cassette. - 8 feb: check 'faulty' cassette at 'good' unit > good images. - 11 feb: same fault at both units. It seems that the fault comes up a few hours after we put the systems on. (when we shut down the system for a while we can take some good images before the fault starts) In case you think of a tricky cable: The fault starts even when we don't do any motion at P.V.-arm or Clinac. All sugestions are welcome. (fot those who are interested: ask for an image of the fault) Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Feb 11 17:37:22 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16aJSE-0004Qg-00; Mon, 11 Feb 2002 17:37:22 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 527331112F1; Mon, 11 Feb 2002 17:28:10 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA27030 for linac-eng-list; Mon, 11 Feb 2002 10:08:26 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA27026 for ; Mon, 11 Feb 2002 10:08:25 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g1BG8Gtw161966; Mon, 11 Feb 2002 11:08:17 -0500 Message-ID: <3C67EAA4.5AE9A438@hsc.vcu.edu> Date: Mon, 11 Feb 2002 11:00:37 -0500 From: "Christopher L. Bartee" X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: CJ.de.Bruijne@walcheren.ziekenhuis.nl, "linac-eng@plato1.aristotle.net" Subject: Re: Varian Portal Vision faults References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 11 Feb 2002 11:00:37 -0500 From: "Christopher L. Bartee" X-Accept-Language: en To: CJ.de.Bruijne@walcheren.ziekenhuis.nl, "linac-eng@plato1.aristotle.net" Subject: Re: Varian Portal Vision faults Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk What type of cassesttes do you have? And what version software? Chris, CJ.de.Bruijne@walcheren.ziekenhuis.nl wrote: > Hi linactroublehunters, > > We do have an interesting problem with our two PV units. > - Mostly we see horizontal black&gray lines, both in normal > use and when taking capacitance images. > - Sometimes we see a 'capacitance' image when we try to make > a patient image. > > - 17 jan: fault started at 1 unit (intermittend) > - 18 jan: swapped IDU's (cassettes): fault disapeared 3 weeks. > (we didn't check the faulty cassette in the good unit) > - 6 feb: fault came back at 'faulty' unit & 'good' cassette. > - 8 feb: check 'faulty' cassette at 'good' unit > good images. > - 11 feb: same fault at both units. > > It seems that the fault comes up a few hours after we > put the systems on. (when we shut down the system for a while > we can take some good images before the fault starts) > > In case you think of a tricky cable: > The fault starts even when we don't do any motion at P.V.-arm > or Clinac. > > All sugestions are welcome. > (fot those who are interested: ask for an image of the fault) > > Keesjan de Bruijne > Ziekenhuis Walcheren > Vlissingen, the Netherlands > afd. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 12 13:38:31 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16acCd-0000Hr-00; Tue, 12 Feb 2002 13:38:31 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 631711112F1; Tue, 12 Feb 2002 13:29:03 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA23697 for linac-eng-list; Tue, 12 Feb 2002 06:15:35 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hrccex.hrcc.on.ca ([209.167.169.190]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id GAA23693 for ; Tue, 12 Feb 2002 06:15:32 -0600 (CST) Received: from SMTP agent by mail gateway Tue, 12 Feb 2002 07:47:10 -0500 Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Feb 2002 07:14:56 -0500 Message-ID: <9C688FB52A05D51194750002B325B5F714FF16@hrccex.hrcc.on.ca> From: "Lapenna, Russ" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato1.aristotle.net Subject: RE: Varian Portal Vision faults Date: Tue, 12 Feb 2002 07:14:56 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lapenna, Russ" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato1.aristotle.net Subject: RE: Varian Portal Vision faults Date: Tue, 12 Feb 2002 07:14:56 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Sounds like it could be your High Voltage board. Russ LaPenna Electronics Engineering Technologist Medical Physics Department Hamilton Regional Cancer Centre 699 Concession St. Hamilton, Ontario Canada L8V 5C2 (905) 387-9711 ext. 67017 > -----Original Message----- > From: CJ.de.Bruijne@walcheren.ziekenhuis.nl > [mailto:CJ.de.Bruijne@walcheren.ziekenhuis.nl] > Sent: Monday, February 11, 2002 8:50 AM > To: linac-eng@plato1.aristotle.net > Subject: Varian Portal Vision faults > > > Hi linactroublehunters, > > We do have an interesting problem with our two PV units. > - Mostly we see horizontal black&gray lines, both in normal > use and when taking capacitance images. > - Sometimes we see a 'capacitance' image when we try to make > a patient image. > > - 17 jan: fault started at 1 unit (intermittend) > - 18 jan: swapped IDU's (cassettes): fault disapeared 3 weeks. > (we didn't check the faulty cassette in the good unit) > - 6 feb: fault came back at 'faulty' unit & 'good' cassette. > - 8 feb: check 'faulty' cassette at 'good' unit > good images. > - 11 feb: same fault at both units. > > It seems that the fault comes up a few hours after we > put the systems on. (when we shut down the system for a while > we can take some good images before the fault starts) > > In case you think of a tricky cable: > The fault starts even when we don't do any motion at P.V.-arm > or Clinac. > > All sugestions are welcome. > (fot those who are interested: ask for an image of the fault) > > Keesjan de Bruijne > Ziekenhuis Walcheren > Vlissingen, the Netherlands > afd. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 12 17:48:32 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ag6a-0002PJ-00; Tue, 12 Feb 2002 17:48:32 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 86B9B1112F3; Tue, 12 Feb 2002 17:39:00 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA00261 for linac-eng-list; Tue, 12 Feb 2002 10:19:16 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA00257 for ; Tue, 12 Feb 2002 10:19:14 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g1CGJ8tw125654; Tue, 12 Feb 2002 11:19:08 -0500 Message-ID: <3C693EB2.8F9D7E0A@hsc.vcu.edu> Date: Tue, 12 Feb 2002 11:11:30 -0500 From: "Christopher L. Bartee" X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: CJ.de.Bruijne@walcheren.ziekenhuis.nl, "Linac-eng@plato1.aristotle.net" Subject: Re: Varian Portal Vision faults References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 12 Feb 2002 11:11:30 -0500 From: "Christopher L. Bartee" X-Accept-Language: en To: CJ.de.Bruijne@walcheren.ziekenhuis.nl, "Linac-eng@plato1.aristotle.net" Subject: Re: Varian Portal Vision faults Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk You can lower the hv via the software and it will take away the hot lines? Let me know and I can send you the instructions. Chris CJ.de.Bruijne@walcheren.ziekenhuis.nl wrote: > Hi Chris... > > We have PV mark 1 > 400V liquid cassettes. > s/w 3.8 > > Keesjan > > > -----Original Message----- > > From: Christopher L. Bartee [SMTP:clbartee@hsc.vcu.edu] > > Sent: Monday, February 11, 2002 5:01 PM > > To: CJ.de.Bruijne@walcheren.ziekenhuis.nl; > > linac-eng@plato1.aristotle.net > > Subject: Re: Varian Portal Vision faults > > > > What type of cassesttes do you have? And what version > > software? > > > > Chris, > > > > CJ.de.Bruijne@walcheren.ziekenhuis.nl wrote: > > > > > Hi linactroublehunters, > > > > > > We do have an interesting problem with our two PV units. > > > - Mostly we see horizontal black&gray lines, both in normal > > > use and when taking capacitance images. > > > - Sometimes we see a 'capacitance' image when we try to make > > > a patient image. > > > > > > - 17 jan: fault started at 1 unit (intermittend) > > > - 18 jan: swapped IDU's (cassettes): fault disapeared 3 weeks. > > > (we didn't check the faulty cassette in the good unit) > > > - 6 feb: fault came back at 'faulty' unit & 'good' cassette. > > > - 8 feb: check 'faulty' cassette at 'good' unit > good images. > > > - 11 feb: same fault at both units. > > > > > > It seems that the fault comes up a few hours after we > > > put the systems on. (when we shut down the system for a while > > > we can take some good images before the fault starts) > > > > > > In case you think of a tricky cable: > > > The fault starts even when we don't do any motion at P.V.-arm > > > or Clinac. > > > > > > All sugestions are welcome. > > > (fot those who are interested: ask for an image of the fault) > > > > > > Keesjan de Bruijne > > > Ziekenhuis Walcheren > > > Vlissingen, the Netherlands > > > afd. DIA > > > cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 13 17:23:33 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16b2Bx-0000KC-00; Wed, 13 Feb 2002 17:23:33 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3577A1112F1; Wed, 13 Feb 2002 17:13:39 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA18835 for linac-eng-list; Wed, 13 Feb 2002 09:55:26 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from iris.cancercare.mb.ca (iris.cancercare.mb.ca [192.139.25.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA18830 for ; Wed, 13 Feb 2002 09:55:24 -0600 (CST) Received: from isis.cancercare.mb.ca ([172.18.125.22]) by iris.cancercare.mb.ca (8.9.1/8.9.1) with ESMTP id KAA12769 for ; Wed, 13 Feb 2002 10:05:25 -0600 (CST) Received: from CCMD01-MTA by isis.cancercare.mb.ca with Novell_GroupWise; Wed, 13 Feb 2002 09:56:04 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Wed, 13 Feb 2002 09:55:24 -0600 From: "Ken Allen" To: Subject: RADCAL Corporation Dosimeter-Ratemeter-Timer Model 3036 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 13 Feb 2002 09:55:24 -0600 From: "Ken Allen" To: Subject: RADCAL Corporation Dosimeter-Ratemeter-Timer Model 3036 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello all, I'm in search of some info on a dosimeter product that is giving our Radiation Protection guys some trouble. It is a Model 3036 Dosimeter-Ratemeter-Timer made by RadCal Corporation. We'd like to look at fixing it for them but haven't got a single piece of technical documentation for it. Does anyone have service manuals, schematics, toubleshooting guide etc for this particular unit? Thanks Ken Allen Electronic Technologist Nuclear Electronics Department CancerCare Manitoba 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 13 18:29:38 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16b3Du-0000Vn-00; Wed, 13 Feb 2002 18:29:38 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id A63C11112F3; Wed, 13 Feb 2002 18:19:43 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id LAA22458 for linac-eng-list; Wed, 13 Feb 2002 11:04:59 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r07.mx.aol.com (imo-r07.mx.aol.com [152.163.225.103]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA22454 for ; Wed, 13 Feb 2002 11:04:57 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-r07.mx.aol.com (mail_out_v32.5.) id c.9c.1af2cc46 (3314) for ; Wed, 13 Feb 2002 12:04:21 -0500 (EST) Message-ID: <9c.1af2cc46.299bf695@aol.com> Date: Wed, 13 Feb 2002 12:04:21 EST Subject: OLD RMS H.E. INTERFACE To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 120 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Wed, 13 Feb 2002 12:04:21 EST Subject: OLD RMS H.E. INTERFACE To: linac-eng@plato1.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Everyone ... I am in need of parts/p.c.b.'s for the "old style" Varian RMS interface. This unit dates back to the Cl-18/20 days and precedes the CCX unit. (Its the one in the "cardrack" type chassis). I have a unit that is still in operation, however, it has been damaged and I am in need of replacement boards. Specifically, the A to D boards. I suspect that someone out there has a unit setting in a storeroom. If so, please let me know. Thank you in advance. Garry 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 01:50:32 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16bWa8-0007aU-00; Fri, 15 Feb 2002 01:50:32 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9753C1112F1; Fri, 15 Feb 2002 01:40:07 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id SAA16649 for linac-eng-list; Thu, 14 Feb 2002 18:27:11 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp01.hutchcity.com (cyan.hutchcity.com [202.45.84.86]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id SAA16641 for ; Thu, 14 Feb 2002 18:27:08 -0600 (CST) Received: (qmail 29314 invoked from network); 15 Feb 2002 00:27:22 -0000 Received: from unknown (HELO webmaill05) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 15 Feb 2002 00:27:22 -0000 Message-ID: <4818685.1013732797818.JavaMail.root@webmaill05> Date: Fri, 15 Feb 2002 08:26:37 +0800 (HKT) From: Jonathan Chan To: linac-eng@plato1.aristotle.net Subject: Re: Backup Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Feb 2002 08:26:37 +0800 (HKT) From: Jonathan Chan To: linac-eng@plato1.aristotle.net Subject: Re: Backup Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Forgot to mention that that machine is a Varian 2300C/D serial no. 199, running on 6.2. Jonathan Chan -----Original Message----- From: Jonathan Chan Sent: Sat Feb 09 12:38:51 HKT 2002 To: linac eng Cc: linac eng Subject: Backup Got a simple question. Just found out that could not use the backup option in Physics Mode to backup "Checkout logs", "Dynamic logs", and "Event logs". When I use any of the above options, I got the error message of "FILES NOT FOUND". All the log files still resides in their respective directory. Recently got software upgrade (adding user e option). Current Console software version is 6.1. Any idea? Jonathan Chan Queen Mary Hospital HONG KONG 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 03:33:15 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16bYBW-0007hr-00; Fri, 15 Feb 2002 03:33:15 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D2CE71112F1; Fri, 15 Feb 2002 03:22:48 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id UAA22028 for linac-eng-list; Thu, 14 Feb 2002 20:13:53 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta6.snfc21.pbi.net (mta6.snfc21.pbi.net [206.13.28.240]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA22022 for ; Thu, 14 Feb 2002 20:13:52 -0600 (CST) Received: from REI-DGPC1.pacbell.net ([216.103.85.50]) by mta6.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0GRJ00I84Y6SPW@mta6.snfc21.pbi.net> for linac-eng@plato1.aristotle.net; Thu, 14 Feb 2002 18:13:50 -0800 (PST) Date: Thu, 14 Feb 2002 18:13:40 -0800 From: Domenic Greco Subject: Communications with IMPAC X-Sender: dgreco@postoffice.pacbell.net To: linac-eng@plato1.aristotle.net Message-id: <5.1.0.14.0.20020214180123.00e02f3c@postoffice.pacbell.net> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 14 Feb 2002 18:13:40 -0800 From: Domenic Greco Subject: Communications with IMPAC X-Sender: dgreco@postoffice.pacbell.net To: linac-eng@plato1.aristotle.net Content-type: text/plain; charset=us-ascii; format=flowed Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This problem concerns IMPAC communications with a varian c-series linac using version 5.4 software. The problem reported by 2 physicists at 2 different facilities is that when they exit service mode on the linac, the IMPAC cannot reestablish communications with the linac until the linac is put in standby and self-test is executed. I suspect this is a problem with the varian com port, but was wondering if anyone has found a work around to avoid the going through the time delay. Regards, Domenic Greco 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 10:24:00 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16beb1-0000cs-00; Fri, 15 Feb 2002 10:23:59 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2A8401112F1; Fri, 15 Feb 2002 10:13:27 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id CAA02569 for linac-eng-list; Fri, 15 Feb 2002 02:58:54 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from azvu.nl (nucleus.azvu.nl [130.37.210.210]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA02565 for ; Fri, 15 Feb 2002 02:58:48 -0600 (CST) Received: by nucleus.azvu.nl id <119064>; Fri, 15 Feb 2002 09:41:25 +0100 Message-Id: <02Feb15.094125cet.119064@nucleus.azvu.nl> From: "Geest, F.G.M. de" To: linac-eng@plato1.aristotle.net Subject: RE: Backup Date: Fri, 15 Feb 2002 09:58:10 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Geest, F.G.M. de" To: linac-eng@plato1.aristotle.net Subject: RE: Backup Date: Fri, 15 Feb 2002 09:58:10 +0100 Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I have the same problem. You can go to Dos and make a backup. But when I edit the log files I got Hex codes i.s.o. dec values. Only with the log files. With the MC files and the Dlog files I got normal readable text. Who knows why? Frank de Geest Amsterdam The Netherlands -----Original Message----- From: Jonathan Chan [mailto:sky8808@hutchcity.com] Sent: vrijdag 15 februari 2002 1:27 To: linac-eng@plato1.aristotle.net Subject: Re: Backup Forgot to mention that that machine is a Varian 2300C/D serial no. 199, running on 6.2. Jonathan Chan -----Original Message----- From: Jonathan Chan Sent: Sat Feb 09 12:38:51 HKT 2002 To: linac eng Cc: linac eng Subject: Backup Got a simple question. Just found out that could not use the backup option in Physics Mode to backup "Checkout logs", "Dynamic logs", and "Event logs". When I use any of the above options, I got the error message of "FILES NOT FOUND". All the log files still resides in their respective directory. Recently got software upgrade (adding user e option). Current Console software version is 6.1. Any idea? Jonathan Chan Queen Mary Hospital HONG KONG 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 13:06:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16bh8I-0001lk-00; Fri, 15 Feb 2002 13:06:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5882C1112F2; Fri, 15 Feb 2002 12:55:55 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id FAA05118 for linac-eng-list; Fri, 15 Feb 2002 05:46:22 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA05114 for ; Fri, 15 Feb 2002 05:46:16 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16bgoh-0007me-00; Fri, 15 Feb 2002 11:46:15 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C6A46CB00060995 for linac-eng@plato1.aristotle.net; Fri, 15 Feb 2002 11:46:15 +0000 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C6A465D00075770 for linac-eng@plato1.aristotle.net; Fri, 15 Feb 2002 11:46:15 +0000 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Fri, 15 Feb 2002 11:45:25 -0000 Message-ID: <37106221CAA3D511AC1800508BD316030872A6@OBERON> From: "Whitlock, Brian" To: "linac eng (E-mail)" Subject: Portable Gantry Date: Fri, 15 Feb 2002 11:47:27 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "linac eng (E-mail)" Subject: Portable Gantry Date: Fri, 15 Feb 2002 11:47:27 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Has anyone (UK) purchased and used a Porta Gantry from Reid Lifting Ltd. www.reidlifting.com I am told there may be one or two in use for head lifts etc. I would like to know what you think of them if you have one. Or, has anyone any other hoists in use they would recommend. (not the I beam). Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 13:54:39 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16bhst-00027k-00; Fri, 15 Feb 2002 13:54:39 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 669F01112F3; Fri, 15 Feb 2002 13:44:03 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA06005 for linac-eng-list; Fri, 15 Feb 2002 06:39:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc54.attbi.com (rwcrmhc54.attbi.com [216.148.227.87]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA06001 for ; Fri, 15 Feb 2002 06:39:35 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc54.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020215123905.CINE1214.rwcrmhc54.attbi.com@c1784162a>; Fri, 15 Feb 2002 12:39:05 +0000 Message-ID: <004501c1b61d$b611a100$99ddf70c@mshome.net> From: "Rich Kimball" To: "Domenic Greco" , References: <5.1.0.14.0.20020214180123.00e02f3c@postoffice.pacbell.net> Subject: Re: Communications with IMPAC Date: Fri, 15 Feb 2002 06:38:46 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Domenic Greco" , Subject: Re: Communications with IMPAC Date: Fri, 15 Feb 2002 06:38:46 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Domenic, I have a 2100C v5.4 with IMPAC and do not experience the trouble you describe. Rich Kimball Acceletronics Midwest, Inc. ----- Original Message ----- From: "Domenic Greco" To: Sent: Thursday, February 14, 2002 8:13 PM Subject: Communications with IMPAC > > > This problem concerns IMPAC communications with a varian c-series linac > using version 5.4 software. The problem reported by 2 physicists at 2 > different facilities is that when they exit service mode on the linac, the > IMPAC cannot reestablish communications with the linac until the linac is > put in standby and self-test is executed. I suspect this is a problem with > the varian com port, but was wondering if anyone has found a work around to > avoid the going through the time delay. > > > Regards, > > Domenic Greco > > > 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 14:32:51 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16biTr-0002Kw-00; Fri, 15 Feb 2002 14:32:51 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 79E3A1112F3; Fri, 15 Feb 2002 14:22:15 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA06950 for linac-eng-list; Fri, 15 Feb 2002 07:14:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id HAA06945 for ; Fri, 15 Feb 2002 07:14:10 -0600 (CST) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Fri, 15 Feb 2002 14:12:54 +0100 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Fri, 15 Feb 2002 14:12:54 +0100 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A688@exchange-5.orebroll.se> To: fgm.geest@vumc.nl, linac-eng@plato1.aristotle.net Subject: SV: Backup Date: Fri, 15 Feb 2002 14:12:51 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: fgm.geest@vumc.nl, linac-eng@plato1.aristotle.net Subject: SV: Backup Date: Fri, 15 Feb 2002 14:12:51 +0100 Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The reason is that the log files are written that way, ie. in hex. The event log translator translates from hex to text messages. I've made an excel program which does this translation too and puts up the events in a file with one row per event file. The codes and what they mean are readily available from service information. Tel Sweden. -----Ursprungligt meddelande----- Fran: Geest, F.G.M. de [mailto:fgm.geest@vumc.nl] Skickat: den 15 februari 2002 09:58 Till: linac-eng@plato1.aristotle.net Amne: RE: Backup I have the same problem. You can go to Dos and make a backup. But when I edit the log files I got Hex codes i.s.o. dec values. Only with the log files. With the MC files and the Dlog files I got normal readable text. Who knows why? Frank de Geest Amsterdam The Netherlands -----Original Message----- From: Jonathan Chan [mailto:sky8808@hutchcity.com] Sent: vrijdag 15 februari 2002 1:27 To: linac-eng@plato1.aristotle.net Subject: Re: Backup Forgot to mention that that machine is a Varian 2300C/D serial no. 199, running on 6.2. Jonathan Chan -----Original Message----- From: Jonathan Chan Sent: Sat Feb 09 12:38:51 HKT 2002 To: linac eng Cc: linac eng Subject: Backup Got a simple question. Just found out that could not use the backup option in Physics Mode to backup "Checkout logs", "Dynamic logs", and "Event logs". When I use any of the above options, I got the error message of "FILES NOT FOUND". All the log files still resides in their respective directory. Recently got software upgrade (adding user e option). Current Console software version is 6.1. Any idea? Jonathan Chan Queen Mary Hospital HONG KONG 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 14:38:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16biYs-0002Mm-00; Fri, 15 Feb 2002 14:38:02 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 875081112F2; Fri, 15 Feb 2002 14:27:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA07203 for linac-eng-list; Fri, 15 Feb 2002 07:22:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.carti.com (adsl-65-66-64-155.carti.com [65.66.64.155]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA07197 for ; Fri, 15 Feb 2002 07:22:33 -0600 (CST) Received: by mail with Internet Mail Service (5.5.2650.21) id ; Fri, 15 Feb 2002 07:20:37 -0600 Message-ID: <456543C21489CA41BF1D6A22A721F5AA09182B@cartimail.carti.com> From: Jim Beaty To: linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Fri, 15 Feb 2002 07:21:38 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Jim Beaty To: linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Fri, 15 Feb 2002 07:21:38 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We've seen the same problem on several machines. We've found that if you program the machine up in clinical mode, then bring Impac out of standby, it usually works fine. Regards, Jim Beaty -----Original Message----- From: Domenic Greco [mailto:dgreco@pacbell.net] Sent: Thursday, February 14, 2002 8:14 PM To: linac-eng@plato1.aristotle.net Subject: Communications with IMPAC This problem concerns IMPAC communications with a varian c-series linac using version 5.4 software. The problem reported by 2 physicists at 2 different facilities is that when they exit service mode on the linac, the IMPAC cannot reestablish communications with the linac until the linac is put in standby and self-test is executed. I suspect this is a problem with the varian com port, but was wondering if anyone has found a work around to avoid the going through the time delay. Regards, Domenic Greco 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 17:32:40 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16blHs-00040b-00; Fri, 15 Feb 2002 17:32:40 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F16051112F2; Fri, 15 Feb 2002 17:22:00 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA12539 for linac-eng-list; Fri, 15 Feb 2002 08:32:43 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from glsmtp1 (glsmtp1-2.gundluth.org [204.69.147.16]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA12535 for ; Fri, 15 Feb 2002 08:32:42 -0600 (CST) From: aengstle@gundluth.org Subject: Re: Communications with IMPAC To: Domenic Greco Cc: linac-eng@plato1.aristotle.net X-Mailer: Lotus Notes Release 5.0.9 November 16, 2001 Message-ID: Date: Fri, 15 Feb 2002 08:30:42 -0600 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.9a |January 7, 2002) at 02/15/2002 08:35:04 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: aengstle@gundluth.org Subject: Re: Communications with IMPAC To: Domenic Greco Cc: linac-eng@plato1.aristotle.net Date: Fri, 15 Feb 2002 08:30:42 -0600 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.9a |January 7, 2002) at 02/15/2002 08:35:04 AM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We found that shutting down the IMPAC workstation and rebooting it after the Clinac is in clinical mode works fastest. I believe that IMPAC added a feature to allow us to put IMPAC in standby when going to service mode on the Clinac. This seems to work now, we can go into service mode and not mess up IMPAC communications. Alan Engstler Domenic Greco To: linac-eng@plato1.aristotle.net Sent by: cc: owner-linac-eng@plato1.ar Subject: Communications with IMPAC istotle.net 02/14/02 08:13 PM This problem concerns IMPAC communications with a varian c-series linac using version 5.4 software. The problem reported by 2 physicists at 2 different facilities is that when they exit service mode on the linac, the IMPAC cannot reestablish communications with the linac until the linac is put in standby and self-test is executed. I suspect this is a problem with the varian com port, but was wondering if anyone has found a work around to avoid the going through the time delay. Regards, Domenic Greco 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 23:04:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16bqTN-0004Nh-00; Fri, 15 Feb 2002 23:04:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B30831112F2; Fri, 15 Feb 2002 22:54:09 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id PAA20304 for linac-eng-list; Fri, 15 Feb 2002 15:36:28 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailserver.xrt.upenn.edu (email.xrt.upenn.edu [165.123.248.180]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA20298 for ; Fri, 15 Feb 2002 15:36:26 -0600 (CST) Received: by email.xrt.upenn.edu with Internet Mail Service (5.5.2650.21) id ; Fri, 15 Feb 2002 16:44:38 -0500 Message-ID: From: "Kreider, Rick" To: "'Linac-eng'" Subject: Service Engineering Position Date: Fri, 15 Feb 2002 16:44:37 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1B669.F738A330" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kreider, Rick" To: "'Linac-eng'" Subject: Service Engineering Position Date: Fri, 15 Feb 2002 16:44:37 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1B669.F738A330" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1B669.F738A330 Content-Type: text/plain; charset="iso-8859-1" Position Available: Radiation Oncology Service Engineer Location: The Hospital of the University of Pennsylvania -Philadelphia Pa. This growing in-house team is responsible for maintaining and servicing linear accelerators, simulators, and ct/simulators from various manufactures such as Varian, Siemens, and Marconi. Local travel is a must since we provide service to our local affiliates as well. Experience in the above equipment is a plus along with strong trouble shooting skills. The University offers competitive salaries as well as excellent benefits. Interested candidates can submit their CV to Rick Kreider Chief of Engineering Department of Radiation Oncology Kreider@xrt.upenn.edu Fax # 215-662-6762 ------_=_NextPart_001_01C1B669.F738A330 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Position Available: Radiation Oncology Service Engineer

    Position Available: Radiation Oncology Service Engineer

     

    Location: The Hospital of the University of Pennsylvania = -Philadelphia Pa.

     

    This growing in-house team is responsible for maintaining and = servicing linear accelerators, simulators, and ct/simulators from various = manufactures such as Varian, Siemens, and Marconi. Local travel is a must since we = provide service to our local affiliates as well. 

     

    Experience in the above equipment is a plus along with strong = trouble shooting skills.  The = University offers competitive salaries as well as excellent = benefits.

     

    Interested candidates can submit their CV to

     

    Rick Kreider

    Chief of Engineering

    Department of Radiation Oncology

    Kreider@xrt.upenn.edu

    Fax # 215-662-6762

     

     

       =

     

     

    ------_=_NextPart_001_01C1B669.F738A330-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 15 23:50:15 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16brBG-0004R5-00; Fri, 15 Feb 2002 23:50:15 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7BE971112F2; Fri, 15 Feb 2002 23:39:29 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA05620 for linac-eng-list; Fri, 15 Feb 2002 16:30:56 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id QAA05612 for ; Fri, 15 Feb 2002 16:30:54 -0600 (CST) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Fri, 15 Feb 2002 14:37:30 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id <1SJVP7P5>; Fri, 15 Feb 2002 14:37:26 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D07523606ED@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: SimView 3000 Date: Fri, 15 Feb 2002 14:36:06 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: SimView 3000 Date: Fri, 15 Feb 2002 14:36:06 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi All, As I am sitting here going through our SimView Simulator books and I am wondering if anybody else in the entire world has one of these. They seem to be few and far between. We have been very fortunate with ours and never had any major difficulties but I know one of these days it is going to go big time. Right now I am having a problem with intermittent blade and delineator movements. The "Functional Description" portion of the book was "Intentionally" left blank. It would be nice to compare some notes with somebody else. If anyone else out there works on one of these please drop me an email off list or give me a call. Thanks in advance, Dan Watters dwatters@umcaz.edu University Medical Center Tucson, Arizona 520-694-7404 > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 16 00:16:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16braF-0004Ss-00; Sat, 16 Feb 2002 00:16:03 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id AAC731112F2; Sat, 16 Feb 2002 00:05:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA12436 for linac-eng-list; Fri, 15 Feb 2002 16:53:24 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA12429 for ; Fri, 15 Feb 2002 16:53:17 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id <1BZFRM7L>; Fri, 15 Feb 2002 17:52:44 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA63@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Domenic Greco'" , linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Fri, 15 Feb 2002 17:52:44 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Domenic Greco'" , linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Fri, 15 Feb 2002 17:52:44 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Common problem. linac port shuts down, impac locks up. we put impac in standy always, wait until linac is fully back in clinical before restarting impac. on rare occasions this doesn't work, have to go to stdby on linac. also, try going to physics mode , without entering password, linac may recover when it reconfigures. Jerry > -----Original Message----- > From: Domenic Greco [SMTP:dgreco@pacbell.net] > Sent: Thursday, February 14, 2002 9:14 PM > To: linac-eng@plato1.aristotle.net > Subject: Communications with IMPAC > > > > This problem concerns IMPAC communications with a varian c-series linac > using version 5.4 software. The problem reported by 2 physicists at 2 > different facilities is that when they exit service mode on the linac, the > > IMPAC cannot reestablish communications with the linac until the linac is > put in standby and self-test is executed. I suspect this is a problem with > > the varian com port, but was wondering if anyone has found a work around > to > avoid the going through the time delay. > > > Regards, > > Domenic Greco > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 16 03:23:52 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16buVz-0004f1-00; Sat, 16 Feb 2002 03:23:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5DA351112F2; Sat, 16 Feb 2002 03:13:03 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id UAA02414 for linac-eng-list; Fri, 15 Feb 2002 20:02:22 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA02405 for ; Fri, 15 Feb 2002 20:02:21 -0600 (CST) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id <153DS8D5>; Fri, 15 Feb 2002 21:01:37 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA64@phsexch6.partners.org> From: "Maddox, Buford J" To: "Maddox, Buford J" , "'Domenic Greco'" , linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Fri, 15 Feb 2002 21:01:37 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "Maddox, Buford J" , "'Domenic Greco'" , linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Fri, 15 Feb 2002 21:01:37 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Forgot to add, similar problem with MLC. Get it fully ready also before starting impac. Jerry > -----Original Message----- > From: Maddox, Buford J > Sent: Friday, February 15, 2002 5:53 PM > To: 'Domenic Greco'; linac-eng@plato1.aristotle.net > Subject: RE: Communications with IMPAC > > Common problem. linac port shuts down, impac locks up. we put impac in > standy always, wait until linac is fully back in clinical before restarting > impac. on rare occasions this doesn't work, have to go to stdby on linac. > also, try going to physics mode , without entering password, linac may > recover when it reconfigures. > > Jerry > > > -----Original Message----- > > From: Domenic Greco [SMTP:dgreco@pacbell.net] > > Sent: Thursday, February 14, 2002 9:14 PM > > To: linac-eng@plato1.aristotle.net > > Subject: Communications with IMPAC > > > > > > > > This problem concerns IMPAC communications with a varian c-series linac > > using version 5.4 software. The problem reported by 2 physicists at 2 > > different facilities is that when they exit service mode on the linac, the > > > > IMPAC cannot reestablish communications with the linac until the linac is > > put in standby and self-test is executed. I suspect this is a problem with > > > > the varian com port, but was wondering if anyone has found a work around > > to > > avoid the going through the time delay. > > > > > > Regards, > > > > Domenic Greco > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 16 05:48:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16bwlX-0004nN-00; Sat, 16 Feb 2002 05:48:03 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E6B311112F2; Sat, 16 Feb 2002 05:37:12 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id WAA11737 for linac-eng-list; Fri, 15 Feb 2002 22:30:27 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc51.attbi.com (rwcrmhc51.attbi.com [204.127.198.38]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA11733 for ; Fri, 15 Feb 2002 22:30:26 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc51.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020216042955.SDRH2626.rwcrmhc51.attbi.com@c1784162a>; Sat, 16 Feb 2002 04:29:55 +0000 Message-ID: <001301c1b6a2$98a398a0$99ddf70c@mshome.net> From: "Rich Kimball" To: "Maddox, Buford J" , "'Domenic Greco'" , References: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA64@phsexch6.partners.org> Subject: Re: Communications with IMPAC Date: Fri, 15 Feb 2002 22:29:59 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Maddox, Buford J" , "'Domenic Greco'" , Subject: Re: Communications with IMPAC Date: Fri, 15 Feb 2002 22:29:59 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Strange....never have seen this problem. Don't have MLC...but can't see why that would make a difference. ----- Original Message ----- From: "Maddox, Buford J" To: "Maddox, Buford J" ; "'Domenic Greco'" ; Sent: Friday, February 15, 2002 8:01 PM Subject: RE: Communications with IMPAC > Forgot to add, similar problem with MLC. Get it fully ready also before > starting impac. > Jerry > > > -----Original Message----- > > From: Maddox, Buford J > > Sent: Friday, February 15, 2002 5:53 PM > > To: 'Domenic Greco'; linac-eng@plato1.aristotle.net > > Subject: RE: Communications with IMPAC > > > > Common problem. linac port shuts down, impac locks up. we put impac in > > standy always, wait until linac is fully back in clinical before restarting > > impac. on rare occasions this doesn't work, have to go to stdby on linac. > > also, try going to physics mode , without entering password, linac may > > recover when it reconfigures. > > > > Jerry > > > > > -----Original Message----- > > > From: Domenic Greco [SMTP:dgreco@pacbell.net] > > > Sent: Thursday, February 14, 2002 9:14 PM > > > To: linac-eng@plato1.aristotle.net > > > Subject: Communications with IMPAC > > > > > > > > > > > > This problem concerns IMPAC communications with a varian c-series linac > > > using version 5.4 software. The problem reported by 2 physicists at 2 > > > different facilities is that when they exit service mode on the linac, the > > > > > > IMPAC cannot reestablish communications with the linac until the linac is > > > put in standby and self-test is executed. I suspect this is a problem with > > > > > > the varian com port, but was wondering if anyone has found a work around > > > to > > > avoid the going through the time delay. > > > > > > > > > Regards, > > > > > > Domenic Greco > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sun Feb 17 12:58:05 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16cPxF-0007tY-00; Sun, 17 Feb 2002 12:58:05 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 555501112F2; Sun, 17 Feb 2002 12:46:44 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id FAA19539 for linac-eng-list; Sun, 17 Feb 2002 05:31:01 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp013.mail.yahoo.com (smtp013.mail.yahoo.com [216.136.173.57]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id FAA19535 for ; Sun, 17 Feb 2002 05:31:00 -0600 (CST) Received: from aste-genev-bois-104-1-1-115.abo.wanadoo.fr (HELO pghd120gb) (217.128.225.115) by smtp.mail.vip.sc5.yahoo.com with SMTP; 17 Feb 2002 10:28:55 -0000 Message-ID: <01af01c1b79d$d85852a0$4b7cfea9@pghd120gb> From: "Saoude" To: Subject: How to join the List Date: Sun, 17 Feb 2002 11:28:07 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01AC_01C1B7A6.2C3AF500" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Saoude" To: Subject: How to join the List Date: Sun, 17 Feb 2002 11:28:07 +0100 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01AC_01C1B7A6.2C3AF500" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk C'est un message de format MIME en plusieurs parties. ------=_NextPart_000_01AC_01C1B7A6.2C3AF500 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello, I forgot how to join the list. Could you remind it to me, I have a friend who want to join. Thanks and Regards. Saoude Remy. ------=_NextPart_000_01AC_01C1B7A6.2C3AF500 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hello,
     
    I forgot how to join the = list.
     
    Could you remind it to me, I have a = friend who want=20 to join.
     
    Thanks and Regards.
     
    Saoude Remy.
     
    ------=_NextPart_000_01AC_01C1B7A6.2C3AF500-- _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Feb 18 16:04:11 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16cpKt-0005hy-00; Mon, 18 Feb 2002 16:04:11 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id AF1FD1112F2; Mon, 18 Feb 2002 15:52:24 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA09403 for linac-eng-list; Mon, 18 Feb 2002 08:20:06 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sjh_exchange00.covhealth.org ([199.250.65.68]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA09395 for ; Mon, 18 Feb 2002 08:20:04 -0600 (CST) Received: by sjh_exchange00.covhealth.org with Internet Mail Service (5.5.2650.21) id ; Mon, 18 Feb 2002 08:19:33 -0600 Message-ID: <149FFFD49CF5D411815800508B669560010B754D@sjh_exchange08.covhealth.org> From: "Roliff, Timothy L." To: "'Domenic Greco'" , linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Mon, 18 Feb 2002 08:18:05 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Roliff, Timothy L." To: "'Domenic Greco'" , linac-eng@plato1.aristotle.net Subject: RE: Communications with IMPAC Date: Mon, 18 Feb 2002 08:18:05 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk I was told by people at IMPAC that this is a software issue. They didn't mention that there was any fix or patch etc. for it. Tim Roliff, CRES tlroliff@covhealth.org Covenant Healthcare, Milwaukee, Wisconsin Clinical Engineering (414)874-4159 -----Original Message----- From: Domenic Greco [mailto:dgreco@pacbell.net] Sent: Thursday, February 14, 2002 8:14 PM To: linac-eng@plato1.aristotle.net Subject: Communications with IMPAC This problem concerns IMPAC communications with a varian c-series linac using version 5.4 software. The problem reported by 2 physicists at 2 different facilities is that when they exit service mode on the linac, the IMPAC cannot reestablish communications with the linac until the linac is put in standby and self-test is executed. I suspect this is a problem with the varian com port, but was wondering if anyone has found a work around to avoid the going through the time delay. Regards, Domenic Greco Privileged/Confidential information may be contained in this message. The information contained in this message is intended only for the use of the recipient(s) named above and their co-workers who are working on the same matter. The recipient of this information is prohibited from disclosing the information to any other party unless this disclosure has been authorized in advance. If you are not intended recipient of this message or any agent responsible for delivery of the message to the intended recipient, you are hereby notified that any disclosure, copying, distribution or action taken in reliance on the contents of this message is strictly prohibited. You should immediately destroy this message and kindly notify the sender by reply E-Mail. Please advise immediately if you or your employer does not consent to Internet E-Mail for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of the firm shall be understood as neither given nor endorsed by it. 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Mon Feb 18 23:32:16 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16cwKW-0007EC-00; Mon, 18 Feb 2002 23:32:16 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B2B211112F2; Mon, 18 Feb 2002 23:20:22 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id PAA20613 for linac-eng-list; Mon, 18 Feb 2002 15:50:54 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f172.law8.hotmail.com [216.33.241.172]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA20609 for ; Mon, 18 Feb 2002 15:50:52 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 18 Feb 2002 13:50:18 -0800 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Mon, 18 Feb 2002 21:50:17 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: linac-eng@plato1.aristotle.net Date: Mon, 18 Feb 2002 15:50:17 -0600 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 18 Feb 2002 21:50:18.0217 (UTC) FILETIME=[41546590:01C1B8C6] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: linac-eng@plato1.aristotle.net Date: Mon, 18 Feb 2002 15:50:17 -0600 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 18 Feb 2002 21:50:18.0217 (UTC) FILETIME=[41546590:01C1B8C6] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi to all the Linac service Engineers Here is an idea that I have been thinking about for a while and have decided to act upon. It has to do with the Varian MLC power supplies and the 120 80 52 leaf Varian Millennium series MLC themselves. My goal here it to provide a service to the group. As most of you know the ESA supplies last anywhere from six months to a year before they lose there 15 volt supply, well it turns out that the problem is radiation getting to the opto isolators and destroying them. I believe that I have the problem fixed. Using 4mm of lead I am able to shield the 15-volt brick making it RAD Hard. This I believe will take care of the problems with the ESA supply. This is really a very good supply designed very well and should give many years of service. I have rebuilt power supplies in stock and ready to ship. Page or call me, and it will be on its way. I need you to ship yours back to me ASAP as I will need to rebuild yours to get it ready to ship out to the next sick MLC. I would also like to offer tech support. We have all been there: it is a Saturday or Sunday and you are doing PM or fixing an intermittent problem and things stop making sense. Give me a page. Sometimes two heads can make sense of it all. I am continually building a database on problems that occur with the Millennium MLC. I have spent many hours on the beast, and am willing to share all information that will help get your MLC up and running. If you have any repair information, please share it with me and I will pass it on to others. At the bottom of this document you will find my pager, phone number, and e-mail at home (please no overseas calls). Feel free to use me between the hours of 4:00 AM and 4:00 PM Central Time seven days a week (obviously I have no life). The next phase is to buy and rebuild enough power supplies to have in stock to offer to the group at a third or less of the price that Varian receives for their supplies. This will make it attractive for the in-house service engineer to buy a spare supply and have one on site for those all too frequent power supply failures. Right now I am in need of virgin core power supplies (virgin core meaning not opened). There should be plenty out there, as Varian does not as of now want the defective cores back. If you have a core sitting around and are willing to sell it please give me a call or e-mail, but don't throw it out. It has value. Now for some technical information on what is done to the power supplies to have them called rebuilt. First all the active components are changed with new (the two DC-to-DC converters, the power FET, the bridge rectifier, and the fan). The fan is replaced with a Panasonic model with Hydro flow bearing. The old Thermal compound is removed and replaced with Arctic Silver II (all you computer builders know this is the stuff to use on your P4 or AMD). Specialized desoldering equipment had to be purchased to get the converters off the board with out damage. After repair, these supplies are run with all lines under maximum load with machine temperatures plus twenty degrees at the heat sink for 12 hours. Also the ripple is monitored with a Philips PM 9355 current probe hooked to a Tek 468 scope. The AC input current is also monitored and recorded. The OEM plugs are used to connect the unit to the outside world. The 15-volt brick is made Rad Hard. In order to except Purchase orders and checks and to pay taxes, I had to set up a business. The name is Encore Engineering Services or EES. This is not a get rich scheme. I basically just want to cover costs and pay something for my time. I thought a price of $800.00 for the MLC rebuilt supplies (with trade-in) would be fair (the DC to DC converters are not cheap). Once I have enough spares to sell, the price would be $1000.00 for an outright purchase of a supply. This is going to depend on what I have to pay for the cores. I should have three rebuilds ready to ship by Feb 20th. My Pager is 1-414-558-3003 Phone 1-262-928-4734 Home e-mail RODDMOD@HOTMAIL.COM Work ROD.WILLIAMS@PHCI.ORG Thanks for your time. ROD _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 02:48:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16czOm-0007TY-00; Tue, 19 Feb 2002 02:48:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B38591112F2; Tue, 19 Feb 2002 02:36:54 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id SAA06760 for linac-eng-list; Mon, 18 Feb 2002 18:33:00 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id SAA06724 for ; Mon, 18 Feb 2002 18:32:58 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato1.aristotle.net [204.233.139.43]) with SMTP; 19 Feb 2002 00:25:58 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Mon, 18 Feb 2002 16:29:58 -0800 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato1.aristotle.net'" Subject: Equipment load per accelerator engineer Date: Mon, 18 Feb 2002 16:31:46 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato1.aristotle.net'" Subject: Equipment load per accelerator engineer Date: Mon, 18 Feb 2002 16:31:46 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi guys, Someone a few months ago posted a document or statement from AAPM or some source that stated the average or proper number of accelerators per service person. Can you post that again? If you still have it in your outgoing folder. Don't go to a lot of trouble. The subject has come up here and I would like to get some statement of manpower requirements from a named source. Anyway, if possible, I'd appreciate it. Thanks in advance, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 10:06:37 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16d6EP-0000ie-00; Tue, 19 Feb 2002 10:06:37 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6A89B1112F3; Tue, 19 Feb 2002 09:54:33 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id CAA19846 for linac-eng-list; Tue, 19 Feb 2002 02:34:55 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d09.mx.aol.com (imo-d09.mx.aol.com [205.188.157.41]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA19842 for ; Tue, 19 Feb 2002 02:34:54 -0600 (CST) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-d09.mx.aol.com (mail_out_v32.5.) id c.ad.187c7691 (24899) for ; Tue, 19 Feb 2002 03:34:18 -0500 (EST) Message-ID: Date: Tue, 19 Feb 2002 03:34:12 EST Subject: ETR parts To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_ad.187c7691.29a36804_boundary" X-Mailer: AOL 6.0 for Windows US sub 10555 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Tue, 19 Feb 2002 03:34:12 EST Subject: ETR parts To: linac-eng@plato1.aristotle.net Content-Type: multipart/alternative; boundary="part1_ad.187c7691.29a36804_boundary" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --part1_ad.187c7691.29a36804_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to everyone on the list, I am in need of some parts off of an ETR couch. If anyone has the two couch side panels, and a complete cable kit for a PSA to ETR retrofit please let me know. If anyone has a complete ETR couch with all the necessary items to do a Varian CL 6/100 PSA to ETR change, I may also be interested in that too. Please contact me below. Thanks as always Mike Liddicote Accelerator Associates email..mlaa@aol.com phone (909) 279-9853 fax (909) 279-9859 --part1_ad.187c7691.29a36804_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to everyone on the list,
    I am in need of some parts off of an ETR couch.  If anyone has the two couch side panels, and a complete cable kit for a PSA to ETR retrofit please let me know.  If anyone has a complete ETR couch with all the necessary items to do a Varian CL 6/100 PSA to ETR change, I may also be interested in that too.  Please contact me below.  Thanks as always
    Mike Liddicote
    Accelerator Associates

    email..mlaa@aol.com
    phone (909) 279-9853
    fax (909) 279-9859     --part1_ad.187c7691.29a36804_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 14:57:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dAlT-0003Fh-00; Tue, 19 Feb 2002 14:57:03 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BA0751112F1; Tue, 19 Feb 2002 14:44:54 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id HAA23714 for linac-eng-list; Tue, 19 Feb 2002 07:28:48 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc52.attbi.com (rwcrmhc52.attbi.com [216.148.227.88]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA23710 for ; Tue, 19 Feb 2002 07:28:46 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc52.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020219132815.ZHLA1147.rwcrmhc52.attbi.com@c1784162a>; Tue, 19 Feb 2002 13:28:15 +0000 Message-ID: <002701c1b949$55b10420$99ddf70c@mshome.net> From: "Rich Kimball" To: "ROD WILLIAMS" , References: Subject: Re: Millennium supplies Date: Tue, 19 Feb 2002 07:28:35 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "ROD WILLIAMS" , Subject: Re: Millennium supplies Date: Tue, 19 Feb 2002 07:28:35 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Rod, Most excellent! Rich Kimball Acceletronics Midwest, Inc. ----- Original Message ----- From: "ROD WILLIAMS" To: Sent: Monday, February 18, 2002 3:50 PM Hi to all the Linac service Engineers Here is an idea that I have been thinking about for a while and have decided to act upon. It has to do with the Varian MLC power supplies and the 120 80 52 leaf Varian Millennium series MLC themselves. My goal here it to provide a service to the group. As most of you know the ESA supplies last anywhere from six months to a year before they lose there 15 volt supply, well it turns out that the problem is radiation getting to the opto isolators and destroying them. I believe that I have the problem fixed. Using 4mm of lead I am able to shield the 15-volt brick making it RAD Hard. This I believe will take care of the problems with the ESA supply. This is really a very good supply designed very well and should give many years of service. I have rebuilt power supplies in stock and ready to ship. Page or call me, and it will be on its way. I need you to ship yours back to me ASAP as I will need to rebuild yours to get it ready to ship out to the next sick MLC. I would also like to offer tech support. We have all been there: it is a Saturday or Sunday and you are doing PM or fixing an intermittent problem and things stop making sense. Give me a page. Sometimes two heads can make sense of it all. I am continually building a database on problems that occur with the Millennium MLC. I have spent many hours on the beast, and am willing to share all information that will help get your MLC up and running. If you have any repair information, please share it with me and I will pass it on to others. At the bottom of this document you will find my pager, phone number, and e-mail at home (please no overseas calls). Feel free to use me between the hours of 4:00 AM and 4:00 PM Central Time seven days a week (obviously I have no life). The next phase is to buy and rebuild enough power supplies to have in stock to offer to the group at a third or less of the price that Varian receives for their supplies. This will make it attractive for the in-house service engineer to buy a spare supply and have one on site for those all too frequent power supply failures. Right now I am in need of virgin core power supplies (virgin core meaning not opened). There should be plenty out there, as Varian does not as of now want the defective cores back. If you have a core sitting around and are willing to sell it please give me a call or e-mail, but don't throw it out. It has value. Now for some technical information on what is done to the power supplies to have them called rebuilt. First all the active components are changed with new (the two DC-to-DC converters, the power FET, the bridge rectifier, and the fan). The fan is replaced with a Panasonic model with Hydro flow bearing. The old Thermal compound is removed and replaced with Arctic Silver II (all you computer builders know this is the stuff to use on your P4 or AMD). Specialized desoldering equipment had to be purchased to get the converters off the board with out damage. After repair, these supplies are run with all lines under maximum load with machine temperatures plus twenty degrees at the heat sink for 12 hours. Also the ripple is monitored with a Philips PM 9355 current probe hooked to a Tek 468 scope. The AC input current is also monitored and recorded. The OEM plugs are used to connect the unit to the outside world. The 15-volt brick is made Rad Hard. In order to except Purchase orders and checks and to pay taxes, I had to set up a business. The name is Encore Engineering Services or EES. This is not a get rich scheme. I basically just want to cover costs and pay something for my time. I thought a price of $800.00 for the MLC rebuilt supplies (with trade-in) would be fair (the DC to DC converters are not cheap). Once I have enough spares to sell, the price would be $1000.00 for an outright purchase of a supply. This is going to depend on what I have to pay for the cores. I should have three rebuilds ready to ship by Feb 20th. My Pager is 1-414-558-3003 Phone 1-262-928-4734 Home e-mail RODDMOD@HOTMAIL.COM Work ROD.WILLIAMS@PHCI.ORG Thanks for your time. ROD _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 16:13:36 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dBxY-0003wH-00; Tue, 19 Feb 2002 16:13:36 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4AE3F1112F1; Tue, 19 Feb 2002 16:01:26 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA25846 for linac-eng-list; Tue, 19 Feb 2002 08:31:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mtiwmhc21.worldnet.att.net (mtiwmhc21.worldnet.att.net [204.127.131.46]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA25841 for ; Tue, 19 Feb 2002 08:31:33 -0600 (CST) Received: from gtei ([24.92.199.45]) by mtiwmhc21.worldnet.att.net (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP id <20020219143057.DZAH6976.mtiwmhc21.worldnet.att.net@gtei> for ; Tue, 19 Feb 2002 14:30:57 +0000 Message-ID: <004601c1b952$0bce2280$6f01a8c0@net.gtei.net> From: "Kevin Pueschel" To: "Linac-eng list" Subject: Varian 2100C Carrousel Date: Tue, 19 Feb 2002 09:30:56 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01C1B928.21FC5560" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kevin Pueschel" To: "Linac-eng list" Subject: Varian 2100C Carrousel Date: Tue, 19 Feb 2002 09:30:56 -0500 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01C1B928.21FC5560" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0043_01C1B928.21FC5560 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have a 2100C3 which produces very intermittent carr/foil faults with a = failure code of 99 (Noise Problems). Does anybody know definitively what = signal is being monitored to produce that fault? Thanks, Kevin Pueschel RTSS ------=_NextPart_000_0043_01C1B928.21FC5560 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    I have a 2100C3 which produces very = intermittent=20 carr/foil faults with a failure code of 99 (Noise Problems). Does = anybody know=20 definitively what signal is being monitored to produce that=20 fault?
    Thanks,
    Kevin Pueschel
    RTSS
    ------=_NextPart_000_0043_01C1B928.21FC5560-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 16:14:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dBxz-0003ws-00; Tue, 19 Feb 2002 16:14:03 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B54761112F1; Tue, 19 Feb 2002 16:01:53 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA25759 for linac-eng-list; Tue, 19 Feb 2002 08:29:48 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA25753 for ; Tue, 19 Feb 2002 08:29:47 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2653.19) id <1875VGPD>; Tue, 19 Feb 2002 08:32:06 -0600 Message-ID: From: "Turner, Guy" To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Subject: RE: Equipment load per accelerator engineer Date: Tue, 19 Feb 2002 08:31:56 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Subject: RE: Equipment load per accelerator engineer Date: Tue, 19 Feb 2002 08:31:56 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Tom, I believe that was me. I was quoting a study on Oncology staffing. The study went into pretty substantial detail on manpower requirements for a free-standing clinic, including service engineers if service were performed in-house. However one of the laws in Turner's book of laws states "You will not need something you are saving until after you throw it away.". I threw it away not more than 10 days ago. Hopefully someone on the list saved it and can re-send it. I will ask the physicist here if he still has the study in his files. Guy Turner -----Original Message----- From: Bush, Thomas M. [mailto:BushT@shmc.org] Sent: Monday, February 18, 2002 6:32 PM To: 'Linac-eng@plato1.aristotle.net' Subject: Equipment load per accelerator engineer Hi guys, Someone a few months ago posted a document or statement from AAPM or some source that stated the average or proper number of accelerators per service person. Can you post that again? If you still have it in your outgoing folder. Don't go to a lot of trouble. The subject has come up here and I would like to get some statement of manpower requirements from a named source. Anyway, if possible, I'd appreciate it. Thanks in advance, Tom Bush 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 18:22:04 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dDxs-0004mE-00; Tue, 19 Feb 2002 18:22:04 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 229811112F1; Tue, 19 Feb 2002 18:09:52 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id KAA01960 for linac-eng-list; Tue, 19 Feb 2002 10:39:56 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id KAA01950 for ; Tue, 19 Feb 2002 10:39:53 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato1.aristotle.net [204.233.139.43]) with SMTP; 19 Feb 2002 16:32:52 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Tue, 19 Feb 2002 08:36:48 -0800 Message-ID: From: "Bush, Thomas M." To: "'Kevin Pueschel'" Cc: "'linac-eng@plato1.aristotle.net'" Subject: RE: Varian 2100C Carrousel Date: Tue, 19 Feb 2002 08:38:36 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Kevin Pueschel'" Cc: "'linac-eng@plato1.aristotle.net'" Subject: RE: Varian 2100C Carrousel Date: Tue, 19 Feb 2002 08:38:36 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Kevin, My most common experience for carrousel with foil faults is the corrousel locking pin switch but usually the code set is a 90 or 93 but it is an easy check. You can unplug the plug at P83 near the end of the guide and remove the air to the system and cycle the switch S9 while looking at the resistznce of the switch. My failures of this switch have caused very random and frustrating foil/carr faults. Good luck..... maybe someone else here has had the 99 (noise) failure mode. Tom Bush -----Original Message----- From: Kevin Pueschel [mailto:kevinpueschel@att.net] Sent: Tuesday, February 19, 2002 6:31 AM To: Linac-eng list Subject: Varian 2100C Carrousel I have a 2100C3 which produces very intermittent carr/foil faults with a failure code of 99 (Noise Problems). Does anybody know definitively what signal is being monitored to produce that fault? Thanks, Kevin Pueschel RTSS 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 19:51:23 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dFMJ-00052y-00; Tue, 19 Feb 2002 19:51:23 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5B61D1112F1; Tue, 19 Feb 2002 19:39:10 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA06186 for linac-eng-list; Tue, 19 Feb 2002 12:17:51 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA06182 for ; Tue, 19 Feb 2002 12:17:49 -0600 (CST) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g1JIHGU22614; Tue, 19 Feb 2002 11:17:16 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.22.247]) by icelus.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g1JIHGi13218; Tue, 19 Feb 2002 11:17:16 -0700 (MST) Message-ID: <3C729679.A44B07EB@cancerboard.ab.ca> Date: Tue, 19 Feb 2002 11:16:25 -0700 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: "Bush, Thomas M." Cc: "'Kevin Pueschel'" , "'linac-eng@plato1.aristotle.net'" Subject: Re: Varian 2100C Carrousel References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 19 Feb 2002 11:16:25 -0700 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Accept-Language: en To: "Bush, Thomas M." Cc: "'Kevin Pueschel'" , "'linac-eng@plato1.aristotle.net'" Subject: Re: Varian 2100C Carrousel Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We some strange carrousel errors where we found one of the fork terminals on the carrousel switches was touching the gantry frame. The terminal was at ground potential so it probably introduced a ground loop. You need to remove the lead that caps the chain to see the space behind the carrousel switches. -- Kurt Knibutat Sr Technical Equipment Officer Tom Baker Cancer Centre (403) 670-1089 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 19:54:45 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dFPZ-00053p-00; Tue, 19 Feb 2002 19:54:45 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F27111112F1; Tue, 19 Feb 2002 19:42:31 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA06213 for linac-eng-list; Tue, 19 Feb 2002 12:18:30 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id MAA06209 for ; Tue, 19 Feb 2002 12:18:25 -0600 (CST) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato1.aristotle.net [204.233.139.43]) with SMTP; 19 Feb 2002 18:18:25 UT Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Tue, 19 Feb 2002 12:17:35 -0600 Message-ID: From: Tyson Long To: "'Kevin Pueschel'" Cc: "'linac-eng@plato1.aristotle.net'" Subject: RE: Varian 2100C Carrousel Date: Tue, 19 Feb 2002 12:17:31 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1B971.B24C4370" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "'Kevin Pueschel'" Cc: "'linac-eng@plato1.aristotle.net'" Subject: RE: Varian 2100C Carrousel Date: Tue, 19 Feb 2002 12:17:31 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1B971.B24C4370" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1B971.B24C4370 Content-Type: text/plain; charset="iso-8859-1" My understanding is that the carrousel timed out without reaching a position. The noise must be on the position switches for the carrousel. I would make sure that the switches are adjusted correctly and working. Tyson Long Rad Systems Specialist Hall Radiation Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org -----Original Message----- From: Kevin Pueschel [mailto:kevinpueschel@att.net] Sent: Tuesday, February 19, 2002 8:31 AM To: Linac-eng list Subject: Varian 2100C Carrousel I have a 2100C3 which produces very intermittent carr/foil faults with a failure code of 99 (Noise Problems). Does anybody know definitively what signal is being monitored to produce that fault? Thanks, Kevin Pueschel RTSS ------_=_NextPart_001_01C1B971.B24C4370 Content-Type: text/html; charset="iso-8859-1"
    My understanding is that the carrousel timed out without reaching a position.  The noise must be on the position switches for the carrousel.  I would make sure that the switches are adjusted correctly and working.
     

    Tyson Long
    Rad Systems Specialist
    Hall Radiation
    Mercy Medical Center
    Cedar Rapids, Iowa
    E-Mail  tlong@mercycare.org

    -----Original Message-----
    From: Kevin Pueschel [mailto:kevinpueschel@att.net]
    Sent: Tuesday, February 19, 2002 8:31 AM
    To: Linac-eng list
    Subject: Varian 2100C Carrousel

    I have a 2100C3 which produces very intermittent carr/foil faults with a failure code of 99 (Noise Problems). Does anybody know definitively what signal is being monitored to produce that fault?
    Thanks,
    Kevin Pueschel
    RTSS
    ------_=_NextPart_001_01C1B971.B24C4370-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 20:31:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dFyh-00058W-00; Tue, 19 Feb 2002 20:31:03 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1F1581112F1; Tue, 19 Feb 2002 20:18:49 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA07999 for linac-eng-list; Tue, 19 Feb 2002 12:58:41 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailm2.adhb.govt.nz ([203.97.243.106]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA07995 for ; Tue, 19 Feb 2002 12:58:38 -0600 (CST) Received: from exchange02.ahsl.co.nz (not verified[10.30.2.23]) by mailm2.adhb.govt.nz with MailMarshal (4,0,6,0) id ; Wed, 20 Feb 2002 07:57:04 +1300 Received: by EXCHANGE02 with Internet Mail Service (5.5.2653.19) id ; Wed, 20 Feb 2002 07:48:25 +1300 Message-ID: From: Kerry Clark To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Subject: RE: Equipment load per accelerator engineer Date: Wed, 20 Feb 2002 07:58:35 +1300 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Kerry Clark To: "'Bush, Thomas M.'" , "'Linac-eng@plato1.aristotle.net'" Subject: RE: Equipment load per accelerator engineer Date: Wed, 20 Feb 2002 07:58:35 +1300 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Tom, I don't think this is the same one. We found something in the book The Physics Of Radiation Therapy by Faiz M. Khan (1994). "Maintenance engineer/electronics technician- One per 2 megavoltage units or 1 megavoltage unit and a simulator if serviced in-house" Hope this helps Kerry. > -----Original Message----- > From: Bush, Thomas M. [SMTP:BushT@shmc.org] > Sent: Tuesday, 19 February 2002 13:32 > To: 'Linac-eng@plato1.aristotle.net' > Subject: Equipment load per accelerator engineer > > Hi guys, > Someone a few months ago posted a document or statement from AAPM or some > source that stated the average or proper number of accelerators per > service > person. Can you post that again? If you still have it in your outgoing > folder. Don't go to a lot of trouble. The subject has come up here and I > would like to get some statement of manpower requirements from a named > source. Anyway, if possible, I'd appreciate it. > Thanks in advance, > Tom Bush > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 23:28:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dIkG-0005UC-00; Tue, 19 Feb 2002 23:28:20 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0A37E1112F1; Tue, 19 Feb 2002 23:15:59 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA16517 for linac-eng-list; Tue, 19 Feb 2002 15:45:37 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id PAA16513 for ; Tue, 19 Feb 2002 15:45:19 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Tue, 19 Feb 2002 17:43:44 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 19 Feb 2002 17:43:36 -0400 From: "Scott Purcell" To: , Subject: Re: Varian 2100C Carrousel Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_E1BCA200.2C4D0C04" X-Guinevere: 1.0.14 ; Nova Scotia Hospital Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 19 Feb 2002 17:43:36 -0400 From: "Scott Purcell" To: , Subject: Re: Varian 2100C Carrousel Content-Type: multipart/alternative; boundary="=_E1BCA200.2C4D0C04" X-Guinevere: 1.0.14 ; Nova Scotia Hospital Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_E1BCA200.2C4D0C04 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable We had a similar problem with the carrousel on our 2100 C s/n 1025. We = were getting the error 99 along with a couple of others and after trying a = few different things, we found it was the FPGA chip on the Bmag,carrousel,= mode PCB that was bad. =20 Hope this helps Scott Purcell =20 Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada=20 Email scott.purcell@chda.nshealth.ca phone: 902-473-2563 Fax:: 902-473-6120 >>> "Kevin Pueschel" 02/19/02 10:30AM >>> I have a 2100C3 which produces very intermittent carr/foil faults with a = failure code of 99 (Noise Problems). Does anybody know definitively what = signal is being monitored to produce that fault? Thanks, Kevin Pueschel RTSS --=_E1BCA200.2C4D0C04 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
    We had a similar problem with the carrousel on = our 2100 C=20 s/n 1025.  We were getting the error 99 along with a = couple=20 of others and after trying a few different things, we found  it = was=20 the FPGA chip on the Bmag,carrousel,mode  PCB that was=20 bad.  
     
    Hope this helps
     
    Scott Purcell  
     
     
     
     
    Scott Purcell, C.E.T
    Linear Accelerator Service=20 Technologist
    Department of Medical Physics
    Nova Scotia Cancer=20 Centre
    5820 University  Avenue
    Halifax, Nova Scotia
    Canada=20=
    Email scott.purcell@chda.nshealth.= ca
    phone:=20 902-473-2563
    Fax:: 902-473-6120

    >>> "Kevin Pueschel"=20 <kevinpueschel@att.net> 02/19/02 10:30AM >>>
    I have a 2100C3 which produces very = intermittent=20 carr/foil faults with a failure code of 99 (Noise Problems). Does anybody = know=20 definitively what signal is being monitored to produce that=20 fault?
    Thanks,
    Kevin Pueschel
    RTSS
    --=_E1BCA200.2C4D0C04-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 23:34:58 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dIqg-0005UV-00; Tue, 19 Feb 2002 23:34:58 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9C4401112F2; Tue, 19 Feb 2002 23:22:41 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id QAA18855 for linac-eng-list; Tue, 19 Feb 2002 16:03:08 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m07.mx.aol.com (imo-m07.mx.aol.com [64.12.136.162]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA18851 for ; Tue, 19 Feb 2002 16:03:07 -0600 (CST) From: MLancaster@aol.com Received: from MLancaster@aol.com by imo-m07.mx.aol.com (mail_out_v32.5.) id c.41.18a9f6f2 (3868) for ; Tue, 19 Feb 2002 17:02:33 -0500 (EST) Message-ID: <41.18a9f6f2.29a42579@aol.com> Date: Tue, 19 Feb 2002 17:02:33 EST Subject: CL2100C GFIL To: linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_41.18a9f6f2.29a42579_boundary" X-Mailer: AOL 6.0 for Windows US sub 10556 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MLancaster@aol.com Date: Tue, 19 Feb 2002 17:02:33 EST Subject: CL2100C GFIL To: linac-eng@plato1.aristotle.net Content-Type: multipart/alternative; boundary="part1_41.18a9f6f2.29a42579_boundary" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk --part1_41.18a9f6f2.29a42579_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have a 2100C with excessive leakage current between the cathode and grid, causing the bias voltage to drop to about -75 VDC. This trips the GFIL interlock. The machine runs fine so what I did as a temporary measure was to decrease the series resistor from 5.6 K to about 3.8 K, which gives a bias voltage of -90 VDC and only increases the current from 12 ma to 13.5 ma. (This is an analog gun deck.) My question is; has anyone had any success with HIPOTing the cathode-grid circuit to "burn off" any whiskers, similar to what is sometimes effective with a VacIon pump? Any other suggestions? Thanks. Mike Lancaster --part1_41.18a9f6f2.29a42579_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have a 2100C with excessive leakage current between the cathode and grid, causing the bias voltage to drop to about -75 VDC. This trips the GFIL interlock.

    The machine runs fine so what I did as a temporary measure was to decrease the series resistor from 5.6 K to about 3.8 K, which gives a bias voltage of -90 VDC and only increases the current from 12 ma to 13.5 ma. (This is an analog gun deck.)

    My question is; has anyone had any success with HIPOTing the cathode-grid circuit to "burn off" any whiskers, similar to what is sometimes effective with a VacIon pump? Any other suggestions?

    Thanks.

    Mike Lancaster     --part1_41.18a9f6f2.29a42579_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Tue Feb 19 23:39:21 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dIuv-0005VJ-00; Tue, 19 Feb 2002 23:39:21 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 611591112F1; Tue, 19 Feb 2002 23:27:04 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA15638 for linac-eng-list; Tue, 19 Feb 2002 15:25:42 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.tju.edu (mail.tju.edu [147.140.227.185]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA15632 for ; Tue, 19 Feb 2002 15:25:39 -0600 (CST) Received: from hpmail1.tju.edu by mail.tju.edu with ESMTP; Tue, 19 Feb 2002 16:24:55 -0500 Received: from localhost (openmail@localhost) by hpmail1.tju.edu (8.9.3/8.9.3) with ESMTP id QAA09760; Tue, 19 Feb 2002 16:24:54 -0500 (EST) X-OpenMail-Hops: 1 Date: Tue, 19 Feb 2002 16:24:53 -0500 Message-Id: In-Reply-To: Subject: Re:Equipment load per accelerator engineer MIME-Version: 1.0 From: "Frank Spitz" To: BushT@shmc.org Cc: Linac-eng@plato1.aristotle.net X-Bad-Content-Type: text/plain; charset=ISO-8859-1 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline ;Creation-Date="Tue, 19 Feb 2002 15:35:59 -0500" ;Modification-Date="Tue, 19 Feb 2002 16:24:53 -0500" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id PAA15633 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-OpenMail-Hops: 1 Date: Tue, 19 Feb 2002 16:24:53 -0500 In-Reply-To: Subject: Re:Equipment load per accelerator engineer From: "Frank Spitz" To: BushT@shmc.org Cc: Linac-eng@plato1.aristotle.net X-Bad-Content-Type: text/plain; charset=ISO-8859-1 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline ;Creation-Date="Tue, 19 Feb 2002 15:35:59 -0500" ;Modification-Date="Tue, 19 Feb 2002 16:24:53 -0500" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id PAA15633 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The American College of Radiology recommends standards to Clinical Radiation Therapy Departments pursuing ACR accreditation. The latest requirements I have on hand are from the 1991 Blue Book. In this volume the ACR lists the minimum personnel requirement for Maintenance Engineer/Electronics Technician as: One per 2 megavoltage units or 1 megavoltage unit and a simulator if equipment is serviced in-house. I'm not aware of any changes to this recommendation. This recommendation is quite old and does not consider new technology such as MLC, portal imaging, PACS, CT Sim, and interfacing/networking issues with record and verify systems. Over the past 10 years the basic LINAC has become more reliable, but this improvement in reliability has not been offset by the new maintenance demands for the new technology mentioned above. For example MLCs require just as much in not more maintenance attention as the rest of the LINAC. Along with this doubling of maintenance time MLCs also experience about the same failure rate as the rest in the Linac. Double maintenance Double downtime should result in double manpower requirement. I personally do not know of any Radiation Therapy in-house program that has the Luxury of Staffing levels recommended by the ACR. The staffing levels I see are between 3/4 and 1/2 of the ACR recommendation. Frank Spitz Clinical Engineer Thomas Jefferson University Hospital Philadelphia, PA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 20 02:57:57 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dM15-0005pg-00; Wed, 20 Feb 2002 02:57:56 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 32ABF1112F2; Wed, 20 Feb 2002 02:45:35 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id TAA25372 for linac-eng-list; Tue, 19 Feb 2002 19:05:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lnksmtp.cgmh.org.tw (lnksmtp.cgmh.org.tw [210.61.73.27]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA25368 for ; Tue, 19 Feb 2002 19:05:38 -0600 (CST) Received: from crakaNB ([10.30.13.11]) by lnksmtp.cgmh.org.tw (8.9.3/8.9.3) with ESMTP id JAA11699 for ; Wed, 20 Feb 2002 09:10:58 +0800 Message-ID: <008c01c1b9aa$2a084b10$0b0d1e0a@crakaNB> From: "UCI" To: Subject: RE Varian 2100C Carrousel Date: Wed, 20 Feb 2002 09:01:44 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0089_01C1B9ED.38132110" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "UCI" To: Subject: RE Varian 2100C Carrousel Date: Wed, 20 Feb 2002 09:01:44 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0089_01C1B9ED.38132110" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0089_01C1B9ED.38132110 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We have 2100C3 SN:1023 happend few month ago about the same as you = described. We lubed the Carr. lock pin and assembly , check the BMAG = board. Finally we change the snap-action micro switch assy. And it never = happen again. Andre C.T. Lu Chief Engineer C.G. Memorial Hospital , TW >>> "Kevin Pueschel" 02/19/02 10:30AM >>> I have a 2100C3 which produces very intermittent carr/foil faults with = a failure code of 99 (Noise Problems). Does anybody know definitively = what signal is being monitored to produce that fault? Thanks, Kevin Pueschel RTSS ------=_NextPart_000_0089_01C1B9ED.38132110 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
     

    We have = 2100C3 SN:1023 happend few month ago about=20 the same as you described. We lubed the Carr. lock pin and assembly , = check the=20 BMAG board. Finally we change the snap-action micro switch assy. And it = never=20 happen again.
     
    Andre C.T. = Lu
    Chief = Engineer
    C.G. = Memorial Hospital , TW
    >>> "Kevin Pueschel" <kevinpueschel@att.net> = 02/19/02=20 10:30AM >>>
    I have a 2100C3 which produces very = intermittent=20 carr/foil faults with a failure code of 99 (Noise Problems). Does = anybody know=20 definitively what signal is being monitored to produce that=20 fault?
    Thanks,
    Kevin Pueschel
    RTSS
    ------=_NextPart_000_0089_01C1B9ED.38132110-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 20 16:40:34 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dYrC-0003mM-00; Wed, 20 Feb 2002 16:40:34 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C1A251112F3; Wed, 20 Feb 2002 16:27:56 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA13490 for linac-eng-list; Wed, 20 Feb 2002 08:39:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA13486 for ; Wed, 20 Feb 2002 08:39:30 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Wed, 20 Feb 2002 15:38:56 +0100 Message-ID: <9D894AB8D748D3118A1800508B073AE6CCB624@CLV4> From: Larsson Christer MFT CLV To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" Cc: "'linac-eng@plato1.aristotle.net'" Subject: SV: Portal Vision handpendant Date: Wed, 20 Feb 2002 15:38:48 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id IAA13487 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Larsson Christer MFT CLV To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" Cc: "'linac-eng@plato1.aristotle.net'" Subject: SV: Portal Vision handpendant Date: Wed, 20 Feb 2002 15:38:48 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id IAA13487 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Keesjan Hi, We have problems with the PVI hand-pendant communications or as you mention the gantry PCB might be the problem, grateful if you could e-mail the handout you made. Many thanks and Best Regards Christer Larsson Central Hospital Vaxjo Sweden > -----Ursprungligt meddelande----- > Från: CJ.de.Bruijne@walcheren.ziekenhuis.nl > [SMTP:CJ.de.Bruijne@walcheren.ziekenhuis.nl] > Skickat: den 11 december 2001 12:33 > Till: sthiesson@scf.sk.ca > Kopia: linac-eng@plato1.aristotle.net > Ämne: RE: Portal Vision handpendant > > Scot, > > The freq. should be basicly the same as in the optical comm.pcb: 9.6 kHz. > (It's the I.R. comm.frequence) > We once had a problem and thought it was the pendant, but in fact it was > this mis-adjusted freq. at the sending/receiving pcb in the gantry. > > If you need further help: we do have a little handout for adjusting. > > Regards, > > Keesjan de Bruijne > Ziekenhuis Walcheren > Vlissingen, the Netherlands > afd. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl > > > -----Original Message----- > > From: Scot Thiesson [SMTP:sthiesson@scf.sk.ca] > > Sent: Monday, December 10, 2001 5:31 PM > > To: Linac Eng > > Subject: Portal Vision handpendant > > > > Regarding the Varian portal vision handpenadant schematic B 300 072. > > I have no information regarding the test points on this drawing. > > Specifically I am wondering what the frequency at MP6 should be with the > > 'clock test' jumper made. > > I get a value around 10 kilohertz but the only indication on the print > > mentions a frequency of 400khz. > > > > My problem is that I have limited communication with the controller. > > The NL indication goes out when I press the MEB's and I do get feedback > > from the unit like 'CAL' or 'TRIP' but I am unable to access any menus > > from the handpendant. When I scope out the keypad everything seems to be > > fine. > > Has anyone had any problems with failures of the embedded micros in > > these units? > > > > Scot Thiesson > > Allan Blair Cancer Centre > > Regina Sask. Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 20 16:56:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dZ6A-00041V-00; Wed, 20 Feb 2002 16:56:02 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6DD5C1112F5; Wed, 20 Feb 2002 16:43:27 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id JAA15071 for linac-eng-list; Wed, 20 Feb 2002 09:30:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id JAA15067 for ; Wed, 20 Feb 2002 09:30:33 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Wed, 20 Feb 2002 11:28:46 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 20 Feb 2002 11:28:36 -0400 From: "Carl Murphy " To: Subject: Varis Generation 6 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA15068 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 20 Feb 2002 11:28:36 -0400 From: "Carl Murphy " To: Subject: Varis Generation 6 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id JAA15068 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Quick question for anyone out there running Varis/Vision Gen6: The in room monitor computer: does it still exist with Gen 6? If so, what OS is it running. Thanks in advance, Carl Murphy _________________________________ Carl Murphy, C.E.T. Linear Accelerator Service Technologist Medical Physics Department Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax, Nova Scotia, Canada Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 20 17:57:52 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16da40-0004Qh-00; Wed, 20 Feb 2002 17:57:52 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D30C91112F3; Wed, 20 Feb 2002 17:45:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA17417 for linac-eng-list; Wed, 20 Feb 2002 10:27:29 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id KAA17413 for ; Wed, 20 Feb 2002 10:27:28 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Wed, 20 Feb 2002 10:30:44 -0600 Received: by corpexcon01.corp.medcity.net with Internet Mail Service (5.5.2653.19) id <1LY9CAXA>; Wed, 20 Feb 2002 10:29:31 -0600 Message-ID: <87DA8A9ECCCFD211B51E0008C7B1558506E507ED@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'MLancaster@aol.com'" Cc: "Linac-eng (E-mail)" Subject: RE: CL2100C GFIL Date: Wed, 20 Feb 2002 10:18:30 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'MLancaster@aol.com'" Cc: "Linac-eng (E-mail)" Subject: RE: CL2100C GFIL Date: Wed, 20 Feb 2002 10:18:30 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Mike, I have a similar problem with my 1800 ser# 046. Grid voltage about - 91vdc. No GFILs yet, just slow to clear @ power on but any time the machine is off for several hours I have to re-tune 16e & 20e adjusting GunI up and then after a few days drop GunI back down. I tried to hi-pot with little success. Basically, I was told that if you lift the gun grid lead and measure -103vdc at the jack then your gun is going down the tube. YOU WILL need to change the gun at some point. It seems that you have reached that point!!! Mike T. > -----Original Message----- > From: MLancaster@aol.com [SMTP:MLancaster@aol.com] > Sent: Tuesday, February 19, 2002 4:03 PM > To: linac-eng@plato1.aristotle.net > Subject: CL2100C GFIL > > I have a 2100C with excessive leakage current between the cathode and > grid, causing the bias voltage to drop to about -75 VDC. This trips the > GFIL interlock. > > The machine runs fine so what I did as a temporary measure was to decrease > the series resistor from 5.6 K to about 3.8 K, which gives a bias voltage > of -90 VDC and only increases the current from 12 ma to 13.5 ma. (This is > an analog gun deck.) > > My question is; has anyone had any success with HIPOTing the cathode-grid > circuit to "burn off" any whiskers, similar to what is sometimes effective > with a VacIon pump? Any other suggestions? > > Thanks. > > Mike Lancaster 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 20 20:33:41 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dcUn-0004ie-00; Wed, 20 Feb 2002 20:33:41 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 45AFA1112F2; Wed, 20 Feb 2002 20:21:04 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA24109 for linac-eng-list; Wed, 20 Feb 2002 13:06:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24105 for ; Wed, 20 Feb 2002 13:06:11 -0600 (CST) Received: from health.nb.ca ([10.10.100.49]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with ESMTP id ca for ; Wed, 20 Feb 2002 15:05:37 -0400 Message-ID: <3C73F379.28554EEF@health.nb.ca> Date: Wed, 20 Feb 2002 15:05:29 -0400 From: andrer@health.nb.ca (Andre Robichaud) Reply-To: andrer@health.nb.ca Organization: DR Georges Dumont Hospital, NB CANADA X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en,pdf MIME-Version: 1.0 To: linac-eng@plato1.aristotle.net Subject: Siemens Stabilipan Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 20 Feb 2002 15:05:29 -0400 From: andrer@health.nb.ca (Andre Robichaud) Reply-To: andrer@health.nb.ca Organization: DR Georges Dumont Hospital, NB CANADA X-Accept-Language: en,pdf To: linac-eng@plato1.aristotle.net Subject: Siemens Stabilipan Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi everybody, The oil level in the oil circulation system of our orthovoltage machine is low. None of us were here at the installation but a 45gal drum with DIALA AX oil was left here. Is that the oil to us? Thanks, Andre Robichaud Moncton NB Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Wed Feb 20 23:04:44 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16deqy-0004u6-00; Wed, 20 Feb 2002 23:04:44 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 558281112F2; Wed, 20 Feb 2002 22:52:04 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id PAA29892 for linac-eng-list; Wed, 20 Feb 2002 15:13:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA29886 for ; Wed, 20 Feb 2002 15:13:27 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KEI4HWW684000QDH@biomed.med.yale.edu> for linac-eng@plato1.aristotle.net; Wed, 20 Feb 2002 16:13:38 -0500 (EST) Date: Wed, 20 Feb 2002 16:09:58 -0500 From: "Peter E. Vitali" Subject: Re: Siemens Stabilipan To: andrer@health.nb.ca Cc: linac-eng@plato1.aristotle.net Message-id: <3C74107C.12A75AFD@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <3C73F379.28554EEF@health.nb.ca> Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 20 Feb 2002 16:09:58 -0500 From: "Peter E. Vitali" Subject: Re: Siemens Stabilipan To: andrer@health.nb.ca Cc: linac-eng@plato1.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Andre: You can use that oil if it was the one that was originally used. Siemens has it own oil for the Stabilipans. It is very expensive but is a very light grade of machine oil with a high dielectric constant. Diala-ax may be a little thick for the system but it will work. Check with Siemens to see if they have any information on your installation. Their oil came in Jerry Cans like you see in the World War II movies. It is a green can. You should be able to get a material safety data sheet from them for their oil. Compare it to the one for Diala-ax. Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 21 11:13:36 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dqEK-0007h5-00; Thu, 21 Feb 2002 11:13:36 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D632C1112F2; Thu, 21 Feb 2002 11:00:44 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id DAA29295 for linac-eng-list; Thu, 21 Feb 2002 03:35:12 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA29291 for ; Thu, 21 Feb 2002 03:35:11 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16dpca-000680-00; Thu, 21 Feb 2002 09:34:36 +0000 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C6A46CB000E78C6 for linac-eng@plato1.aristotle.net; Thu, 21 Feb 2002 09:34:36 +0000 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C724CE10003F92B; Thu, 21 Feb 2002 09:34:36 +0000 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Thu, 21 Feb 2002 09:33:41 -0000 Message-ID: <37106221CAA3D511AC1800508BD316030872BA@OBERON> From: "Whitlock, Brian" To: "'andrer@health.nb.ca'" Cc: "linac eng (E-mail)" Subject: RE: Siemens Stabilipan Date: Thu, 21 Feb 2002 09:35:43 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "'andrer@health.nb.ca'" Cc: "linac eng (E-mail)" Subject: RE: Siemens Stabilipan Date: Thu, 21 Feb 2002 09:35:43 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Our last tube change we bought Shell Oil 4655 from Siemens. The old oil may have lost its dielectric properties! Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk -----Original Message----- From: andrer@health.nb.ca [mailto:andrer@health.nb.ca] Sent: 20 February 2002 19:05 To: linac-eng@plato1.aristotle.net Subject: Siemens Stabilipan Hi everybody, The oil level in the oil circulation system of our orthovoltage machine is low. None of us were here at the installation but a 45gal drum with DIALA AX oil was left here. Is that the oil to us? Thanks, Andre Robichaud Moncton NB Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 21 14:27:03 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dtFX-0001KH-00; Thu, 21 Feb 2002 14:27:03 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D4C8A1112F7; Thu, 21 Feb 2002 14:14:06 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA01412 for linac-eng-list; Thu, 21 Feb 2002 06:58:28 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA01408 for ; Thu, 21 Feb 2002 06:58:27 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KEJ1HB3S4I000NEA@biomed.med.yale.edu> for linac-eng@plato1.aristotle.net; Thu, 21 Feb 2002 07:58:26 -0500 (EST) Date: Thu, 21 Feb 2002 07:54:07 -0500 From: "Peter E. Vitali" Subject: Re: Varis Generation 6 To: Carl Murphy Cc: linac-eng@plato1.aristotle.net Message-id: <3C74EDEC.FA365471@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 21 Feb 2002 07:54:07 -0500 From: "Peter E. Vitali" Subject: Re: Varis Generation 6 To: Carl Murphy Cc: linac-eng@plato1.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Carl: Yes. I believe it is DOS 6.2 or Windows 3.1. That the software that is in the box with the Dell computer which is loaded by Varian. Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 21 16:37:02 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dvHK-0002AD-00; Thu, 21 Feb 2002 16:37:02 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9E6BF1112F2; Thu, 21 Feb 2002 16:24:05 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA05856 for linac-eng-list; Thu, 21 Feb 2002 08:58:07 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id IAA05850 for ; Thu, 21 Feb 2002 08:58:05 -0600 (CST) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Thu, 21 Feb 2002 15:57:37 +0100 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Thu, 21 Feb 2002 15:57:37 +0100 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A698@exchange-5.orebroll.se> To: Carl.Murphy@cdha.nshealth.ca, linac-eng@plato1.aristotle.net Subject: SV: Varis Generation 6 Date: Thu, 21 Feb 2002 15:57:36 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: Carl.Murphy@cdha.nshealth.ca, linac-eng@plato1.aristotle.net Subject: SV: Varis Generation 6 Date: Thu, 21 Feb 2002 15:57:36 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk The in-room monitor computer with Gen 6 runs under Win 98. Tel. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 21 17:53:16 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dwT6-0002Vh-00; Thu, 21 Feb 2002 17:53:16 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 97D3C1112F3; Thu, 21 Feb 2002 17:40:17 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id KAA10258 for linac-eng-list; Thu, 21 Feb 2002 10:19:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from r2tech01.r2tech.com (67-115-96-146.ded.pacbell.net [67.115.96.146]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA10253 for ; Thu, 21 Feb 2002 10:19:43 -0600 (CST) Received: by r2tech01.r2tech.com with Internet Mail Service (5.5.2650.21) id ; Thu, 21 Feb 2002 08:18:56 -0800 Message-ID: From: Mark Bloom To: linac-eng@plato1.aristotle.net Subject: RE: Varis Generation 6 Date: Thu, 21 Feb 2002 08:18:55 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1BAF3.758BCCC0" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mark Bloom To: linac-eng@plato1.aristotle.net Subject: RE: Varis Generation 6 Date: Thu, 21 Feb 2002 08:18:55 -0800 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1BAF3.758BCCC0" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1BAF3.758BCCC0 Content-Type: text/plain; charset="iso-8859-1" The OS of the in-room system (in the case of Varian Clinacs) depends on the Clinac software version or model. Non C-Series and pre 6.0 Clinacs use iRMX for Windows (a real-time operating system) AND Windows 3.1. Later versions of the C-Series and non-Varian linacs use Windows 98 or NT. Mark Bloom Director of Systems Engineering R2 Technology 1195 W. Fremont Ave. Sunnyvale CA 94087 +1 408 481 5618 -----Original Message----- From: owner-linac-eng@plato1.aristotle.net [mailto:owner-linac-eng@plato1.aristotle.net]On Behalf Of terry.kearey@orebroll.se Sent: Thursday, February 21, 2002 6:58 AM To: Carl.Murphy@cdha.nshealth.ca; linac-eng@plato1.aristotle.net Subject: SV: Varis Generation 6 The in-room monitor computer with Gen 6 runs under Win 98. Tel. ------_=_NextPart_001_01C1BAF3.758BCCC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Varis Generation 6

    The OS of the in-room system (in the case of Varian = Clinacs) depends on the Clinac software version or model.

    Non C-Series and pre 6.0 Clinacs use iRMX for Windows = (a real-time operating system) AND Windows 3.1.
    Later versions of the C-Series and non-Varian linacs = use Windows 98 or NT.

    Mark Bloom
    Director of Systems Engineering
    R2 Technology
    1195 W. Fremont Ave.
    Sunnyvale CA 94087
    +1 408 481 5618


    -----Original Message-----
    From: owner-linac-eng@plato1.aristotle.net
    [mailto:owner-linac-= eng@plato1.aristotle.net]On Behalf Of
    terry.kearey@orebroll.se
    Sent: Thursday, February 21, 2002 6:58 AM
    To: Carl.Murphy@cdha.nshealth.ca; = linac-eng@plato1.aristotle.net
    Subject: SV: Varis Generation 6


     
    The in-room monitor computer with Gen 6 runs under = Win 98.

    Tel.

    ------_=_NextPart_001_01C1BAF3.758BCCC0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 21 18:50:13 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dxMD-0002gK-00; Thu, 21 Feb 2002 18:50:13 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id BAD531112F2; Thu, 21 Feb 2002 18:37:14 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id KAA12286 for linac-eng-list; Thu, 21 Feb 2002 10:56:09 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from viola.lio.se (viola.lio.se [158.126.248.15]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA12281 for ; Thu, 21 Feb 2002 10:56:07 -0600 (CST) Received: from LIO_S_TFS1 (tfs1.lio.se [158.126.88.66]) by viola.lio.se (8.10.0/8.10.1) with SMTP id g1LGvFb28870 for ; Thu, 21 Feb 2002 17:57:15 +0100 (MET) Message-Id: From: Viking Eilert Date: Thu, 21 Feb 2002 17:59:21 +0100 To: linac-eng@plato1.aristotle.net Subject: Varis Gen 6, in-room OS version MIME-version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Mailer: TFS Secure Messaging /320000000/450000208/450800090/450300029/ X-Mailer: Version 4.7 Build 103 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA12283 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Viking Eilert Date: Thu, 21 Feb 2002 17:59:21 +0100 To: linac-eng@plato1.aristotle.net Subject: Varis Gen 6, in-room OS version Content-Type: text/plain; charset=ISO-8859-1 X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id KAA12283 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello Carl We still run our in-room IRMX workstations, to Varis/Vision ver 6.1, with OS win 3.11. We are now using a CSSI interface. We are going to upgrade our console software with AFS (Automatic field sequencing) then the interface will have to be replaced to EXCI-1 and the inroom-program will be replaced to AVI win-98. Eilert Viking Linköping *** Eilert.Viking@lio.se Sweden aaaaaaaaaaaaaaaaaaaa The in-room monitor computer with Gen 6 runs under Win 98. Tel. aaaaaaaaaaaaaaa Carl: Yes. I believe it is DOS 6.2 or Windows 3.1. That the software that is in the box with the Dell computer which is loaded by Varian. Pete Vitali aaaaaaaaaaaaa Quick question for anyone out there running Varis/Vision Gen6: The in room monitor computer: does it still exist with Gen 6? If so, what OS is it running. Thanks in advance, Carl Murphy _________________________________ Carl Murphy, C.E.T. Linear Accelerator Service Technologist Medical Physics Department Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax, Nova Scotia, Canada Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Thu Feb 21 20:27:06 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16dyry-0002vd-00; Thu, 21 Feb 2002 20:27:06 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 522E71112F3; Thu, 21 Feb 2002 20:14:05 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id MAA19677 for linac-eng-list; Thu, 21 Feb 2002 12:50:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ihis.org (islandtelecom18-65.islandtelecom.com [142.176.18.65]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA19669 for ; Thu, 21 Feb 2002 12:50:42 -0600 (CST) Received: by peihealth.ihis.org id <115201>; Thu, 21 Feb 2002 14:45:41 -0400 Message-Id: <02Feb21.144541ast.115201@peihealth.ihis.org> X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Thu, 21 Feb 2002 14:43:45 -0400 From: "Rick Smith" To: Subject: block cutters Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id MAA19674 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 21 Feb 2002 14:43:45 -0400 From: "Rick Smith" To: Subject: block cutters Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id MAA19674 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We are in the process of setting up a new cancer centre and I've been asked to spec a styrofoam block cutter ie. CNC Router. We will be using 3" styrofoam and the router will be interfaced to a treatment planning system. Could anyone point me to companies that deal in this sort of equipment and provide recommendations etc. Thanks Rick Smith ersmith@ihis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 22 07:23:11 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16e96t-0003oX-00; Fri, 22 Feb 2002 07:23:11 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3AB921112F2; Fri, 22 Feb 2002 07:09:55 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id XAA06942 for linac-eng-list; Thu, 21 Feb 2002 23:37:41 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from altarf ([200.210.78.18]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA06078 for ; Thu, 21 Feb 2002 23:27:20 -0600 (CST) From: mba@coc.com.br Received: from mail pickup service by altarf with Microsoft SMTPSVC; Fri, 22 Feb 2002 02:00:19 -0300 To: Subject: MBA FGV - Faculdades COC Date: Fri, 22 Feb 2002 01:16:32 -0300 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_4AB40_01C1BB3E.90216A40" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-ID: X-OriginalArrivalTime: 22 Feb 2002 05:00:19.0443 (UTC) FILETIME=[D34C4C30:01C1BB5D] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: mba@coc.com.br To: Subject: MBA FGV - Faculdades COC Date: Fri, 22 Feb 2002 01:16:32 -0300 Content-Type: multipart/alternative; boundary="----=_NextPart_000_4AB40_01C1BB3E.90216A40" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-OriginalArrivalTime: 22 Feb 2002 05:00:19.0443 (UTC) FILETIME=[D34C4C30:01C1BB5D] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_4AB40_01C1BB3E.90216A40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable =09 Em Ribeir=E3o Preto, Araraquara e S=E3o Carlos, MBA da FGV. MBA Pleno MBA Executivo Internacional P=F3s-Gradua=E7=E3o Especializa=E7=E3o. Clique aqui para acessar e confira. Novos cursos e novas vagas para 2002 =20 =20 Esta mensagem n=E3o se trata de um "spam", "hoax" ou "junk mail". Caso voc=EA queira remover o seu nome de nosso cadastro, clique aqui =20 =20 ------=_NextPart_000_4AB40_01C1BB3E.90216A40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MBA FGV =
    = =
         

    Em Ribeir=E3o Preto, Araraquara e
    S=E3o Carlos, MBA da = FGV.

    MBA Pleno
    MBA Executivo = Internacional
    P=F3s-Gradua=E7=E3o
    Especializa=E7=E3o.

    Clique aqui para acessar e confira.
    Novos cursos e novas = vagas para 2002

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      Esta mensagem não se trata de um = "spam", "hoax" ou "junk mail".
    = Caso você queira remover o seu nome de nosso cadastro, clique aqui    		 
     
    ------=_NextPart_000_4AB40_01C1BB3E.90216A40-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 22 13:46:59 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16eF6J-0006YH-00; Fri, 22 Feb 2002 13:46:59 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id C540E1112F1; Fri, 22 Feb 2002 13:33:41 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA14522 for linac-eng-list; Fri, 22 Feb 2002 06:10:38 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id GAA14505 for ; Fri, 22 Feb 2002 06:10:36 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Fri, 22 Feb 2002 08:08:50 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 22 Feb 2002 08:08:37 -0400 From: "David Burgess" To: Subject: Energy Switch bellows leak Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_D48993C2.A5C48534" X-Guinevere: 1.0.14 ; Nova Scotia Hospital Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 22 Feb 2002 08:08:37 -0400 From: "David Burgess" To: Subject: Energy Switch bellows leak Content-Type: multipart/alternative; boundary="=_D48993C2.A5C48534" X-Guinevere: 1.0.14 ; Nova Scotia Hospital Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_D48993C2.A5C48534 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable We have a small vacuum leak in the Energy Switch bellows of a Varian High = Energy machine. The leak is not yet tripping VAC1 or VAC2. This is a high usage machine = and I don't want to put it down until I can plan a lapse in patient = treatments. Is there any major damage we can do by using the machine until we get VAC = interlocks ? David Burgess=20 Nova Scotia Cancer Centre --=_D48993C2.A5C48534 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
    We have a small vacuum leak in the Energy Switch = bellows of a=20 Varian High Energy machine.
    The leak is not yet tripping VAC1 or VAC2. This is a = high=20 usage machine and I don't want to put it down until I can plan a lapse = in=20 patient treatments.
    Is there any major damage we can do by using the = machine until=20 we get VAC interlocks ?
    David Burgess
    Nova Scotia Cancer Centre
    --=_D48993C2.A5C48534-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 22 14:03:11 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16eFLz-0006ih-00; Fri, 22 Feb 2002 14:03:11 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3C2831112F2; Fri, 22 Feb 2002 13:49:53 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id GAA15181 for linac-eng-list; Fri, 22 Feb 2002 06:41:46 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from viola.lio.se (viola.lio.se [158.126.248.15]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA15177 for ; Fri, 22 Feb 2002 06:41:44 -0600 (CST) Received: from LIO_S_TFS1 (tfs1.lio.se [158.126.88.66]) by viola.lio.se (8.10.0/8.10.1) with SMTP id g1MCgqb08288 for ; Fri, 22 Feb 2002 13:42:53 +0100 (MET) Message-Id: From: Viking Eilert Date: Fri, 22 Feb 2002 13:45:11 +0100 To: linac-eng@plato1.aristotle.net Subject: SV: Varis Gen 6, in-room OS version MIME-version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Mailer: TFS Secure Messaging /320000000/450000208/450800090/450300029/ X-Mailer: Version 4.7 Build 103 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id GAA15178 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Viking Eilert Date: Fri, 22 Feb 2002 13:45:11 +0100 To: linac-eng@plato1.aristotle.net Subject: SV: Varis Gen 6, in-room OS version Content-Type: text/plain; charset=ISO-8859-1 X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id GAA15178 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hello again Carl Just to clarify: We have clinac console software ver. 6, so it IS possible to run Clinac console software ver 6.0 even with iRMX for windows 3.11 to VARiS/Vision gen 6 (But it's not possible to run clinac console software with AFS together with iRMX as I already told you below). Eilert aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa > -----Ursprungligt meddelande----- > Från: Viking Eilert > Skickat: den 21 februari 2002 17:55 > Till: Linac-Eng (E-postl) > Ämne: Varis Gen 6, in-room OS version > > The OS of the in-room system (in the case of Varian Clinacs) depends on > the > Clinac software version or model. > > Non C-Series and pre 6.0 Clinacs use iRMX for Windows (a real-time > operating > system) AND Windows 3.1. > Later versions of the C-Series and non-Varian linacs use Windows 98 or NT. > > Mark Bloom > Director of Systems Engineering > R2 Technology > 1195 W. Fremont Ave. > Sunnyvale CA 94087 > +1 408 481 5618 > > aaaaaaaaaaaaaaaaa > > Hello Carl > We still run our in-room IRMX workstations, to Varis/Vision ver 6.1, with > OS win 3.11. We are now using a CSSI interface. > > We are going to upgrade our console software with AFS (Automatic field > sequencing) then the interface will have to be replaced to EXCI-1 and the > inroom-program will be replaced to AVI win-98. > > Eilert Viking > Linköping *** Eilert.Viking@lio.se > Sweden > > aaaaaaaaaaaaaaaaaaaa > > The in-room monitor computer with Gen 6 runs under Win 98. > > Tel. > > aaaaaaaaaaaaaaa > > Carl: > > Yes. > I believe it is DOS 6.2 or Windows 3.1. That the software that is in the > box with the > Dell computer which is loaded by Varian. > > Pete Vitali > > aaaaaaaaaaaaa > > Quick question for anyone out there running Varis/Vision Gen6: > The in room monitor computer: does it still exist with Gen 6? > If so, what OS is it running. > Thanks in advance, > > Carl Murphy > _________________________________ > Carl Murphy, C.E.T. > Linear Accelerator Service Technologist > Medical Physics Department > Nova Scotia Cancer Centre > QEII Health Sciences Centre > Halifax, Nova Scotia, Canada > Email: carl.murphy@cdha.nshealth.ca > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 22 17:00:30 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16eI7a-0000Jz-00; Fri, 22 Feb 2002 17:00:30 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id B15471112F1; Fri, 22 Feb 2002 16:47:08 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id IAA23489 for linac-eng-list; Fri, 22 Feb 2002 08:55:53 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu ([152.11.200.73]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA23478 for ; Fri, 22 Feb 2002 08:55:36 -0600 (CST) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: block cutters X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Fri, 22 Feb 2002 09:55:06 -0500 Message-ID: <9AEEF1FB6254224AA355ED285F84916503868A@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: block cutters Thread-Index: AcG7FVZOGk4nHbZOR/eRAP7aNO6QFAAlcMqw From: "Tim Cullen" To: "Rick Smith" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id IAA23479 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" Subject: RE: block cutters X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Fri, 22 Feb 2002 09:55:06 -0500 Thread-Topic: block cutters Thread-Index: AcG7FVZOGk4nHbZOR/eRAP7aNO6QFAAlcMqw From: "Tim Cullen" To: "Rick Smith" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id IAA23479 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Rick, my suggestion would be to think through the process of the compatibility from your RTP system to the cutter. In other words make both vendors prove (get in writing) they can send/receive the files and handle them properly. A big plus is a 32bit application. Long file names can be very helpful for retrieving and storing files. I have looked at all of the systems at the shows and all can achieve the accuracy. The way their software handles files and their compatibility with the outside world is where you need to focus. Tim > -----Original Message----- > From: Rick Smith [mailto:ersmith@ihis.org] > Sent: Thursday, February 21, 2002 1:44 PM > To: linac-eng@plato1.aristotle.net > Subject: block cutters > > > We are in the process of setting up a new cancer centre and > I've been asked to spec a styrofoam block cutter ie. CNC > Router. We will be using 3" styrofoam and the router will be > interfaced to a treatment planning system. Could anyone point > me to companies that deal in this sort of equipment and > provide recommendations etc. > > Thanks > Rick Smith > ersmith@ihis.org > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 22 19:44:55 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16eKgh-000163-00; Fri, 22 Feb 2002 19:44:55 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id A31451112F1; Fri, 22 Feb 2002 19:31:31 +0100 (MET) Received: (from majordomo@localhost) by plato1.aristotle.net (8.9.0/8.9.0) id LAA07998 for linac-eng-list; Fri, 22 Feb 2002 11:38:20 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f102.law8.hotmail.com [216.33.241.102]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA07994 for ; Fri, 22 Feb 2002 11:38:19 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 22 Feb 2002 09:37:17 -0800 Received: from 198.160.134.100 by lw8fd.law8.hotmail.msn.com with HTTP; Fri, 22 Feb 2002 17:37:16 GMT X-Originating-IP: [198.160.134.100] From: "Jose Villegas" To: linac-eng@plato1.aristotle.net Subject: MLC millennium motors Date: Fri, 22 Feb 2002 12:37:16 -0500 Mime-Version: 1.0 Content-Type: text/html Message-ID: X-OriginalArrivalTime: 22 Feb 2002 17:37:17.0147 (UTC) FILETIME=[925BF2B0:01C1BBC7] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [198.160.134.100] From: "Jose Villegas" To: linac-eng@plato1.aristotle.net Subject: MLC millennium motors Date: Fri, 22 Feb 2002 12:37:16 -0500 Content-Type: text/html X-OriginalArrivalTime: 22 Feb 2002 17:37:17.0147 (UTC) FILETIME=[925BF2B0:01C1BBC7] Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk
    Hi group,
     
    A while ago there was a posting about second source for Millennium MLC motor, can you get back to me with that info.
     
    Thanks
     
    Jose Villegas
    Baptist Hospital of Miami 

    Send and receive Hotmail on your mobile device: Click Here
    1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 22 20:32:54 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16eLR8-0001Id-00; Fri, 22 Feb 2002 20:32:54 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id E732B1112F1; Fri, 22 Feb 2002 20:19:29 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id NAA14207 for linac-eng-list; Fri, 22 Feb 2002 13:06:34 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA14203 for ; Fri, 22 Feb 2002 13:06:33 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16eL14-0001Ce-00; Fri, 22 Feb 2002 19:05:58 +0000 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C7679F100002750 for linac-eng@plato1.aristotle.net; Fri, 22 Feb 2002 19:05:58 +0000 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C76778E00002C74 for linac-eng@plato1.aristotle.net; Fri, 22 Feb 2002 19:05:58 +0000 X-Internal-ID: 3C711E000001C590 Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato1.aristotle.net; 22 Feb 2002 19:02:28 +0000 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Fri, 22 Feb 2002 19:06:20 -0000 Message-ID: <4BD1673C955CD41182DA00508BACF2DF915EA8@YGC-MAIL> From: "Jordan, Tom" To: linac-eng@plato1.aristotle.net Subject: RE: block cutters Date: Fri, 22 Feb 2002 19:06:19 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3C711E000001C590 From: "Jordan, Tom" To: linac-eng@plato1.aristotle.net Subject: RE: block cutters Date: Fri, 22 Feb 2002 19:06:19 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk We opted for a Danish unit, the Par-Scientific block cutter (www.parscientific.com) which has lots of history in Europe. I must say I am very happy with it, it interfaces to Cadplan, it has recent 32 bit software and we chose an option to plot block shapes directly onto shadow trays which is really useful. You can also buy a compatible 3-D Computer controlled miller (for plastic or metal compensators) which links to Cadplan. If you don't have Cadplan most other major TP systems are covered but I have no experience to comment. Tom Jordan > -----Original Message----- > From: Tim Cullen [SMTP:tcullen@wfubmc.edu] > Sent: 22 February 2002 14:55 > To: Rick Smith; linac-eng@plato1.aristotle.net > Subject: RE: block cutters > > Rick, my suggestion would be to think through the process of the > compatibility from your RTP system to the cutter. In other words make > both vendors prove (get in writing) they can send/receive the files and > handle them properly. A big plus is a 32bit application. Long file names > can be very helpful for retrieving and storing files. > I have looked at all of the systems at the shows and all can achieve the > accuracy. The way their software handles files and their compatibility > with the outside world is where you need to focus. > Tim > > > > -----Original Message----- > > From: Rick Smith [mailto:ersmith@ihis.org] > > Sent: Thursday, February 21, 2002 1:44 PM > > To: linac-eng@plato1.aristotle.net > > Subject: block cutters > > > > > > We are in the process of setting up a new cancer centre and > > I've been asked to spec a styrofoam block cutter ie. CNC > > Router. We will be using 3" styrofoam and the router will be > > interfaced to a treatment planning system. Could anyone point > > me to companies that deal in this sort of equipment and > > provide recommendations etc. > > > > Thanks > > Rick Smith > > ersmith@ihis.org > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 23 09:20:05 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16eXPZ-0002gY-00; Sat, 23 Feb 2002 09:20:05 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id 75AEA1112F1; Sat, 23 Feb 2002 09:06:27 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id BAA01150 for linac-eng-list; Sat, 23 Feb 2002 01:35:45 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from msn.com (IDENT:squid@[210.95.157.193]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id BAA01145 for ; Sat, 23 Feb 2002 01:35:41 -0600 (CST) Date: Sat, 23 Feb 2002 01:35:41 -0600 (CST) From: Katie3812b32@msn.com Received: from rly-xl04.mx.aol.com ([103.163.20.141]) by rly-xw01.mx.aol.com with SMTP; 23 Feb 2002 12:35:34 -0500 Received: from smtp013.mail.yahoo.com ([36.125.88.114]) by rly-xr01.mx.aol.com with local; Sat, 23 Feb 2002 06:35:11 +0100 Received: from rly-xr01.mx.aol.com ([14.91.111.78]) by rly-xw01.mx.aol.com with asmtp; 23 Feb 2002 13:34:49 -0600 Reply-To: Message-ID: <003b17d78eee$4872d1c1$7ea00ea7@fqbkvi> Subject: Web Content Management 5822nOSFl8 MiME-Version: 1.0 Content-Type: text/html; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2616 Importance: Normal Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk To: undisclosed-recipients:; *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 23 Feb 2002 01:35:41 -0600 (CST) From: Katie3812b32@msn.com Reply-To: Subject: Web Content Management 5822nOSFl8 Content-Type: text/html; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk To: undisclosed-recipients:; I noticed your email address on a listserv related to next generation web solutions and strategic use of the Internet.

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    3016YNhS5-848WOeH8556TERM8-1l26 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Sat Feb 23 10:06:24 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16eY8O-0002jS-00; Sat, 23 Feb 2002 10:06:24 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id ECE001112F1; Sat, 23 Feb 2002 09:52:46 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id CAA02391 for linac-eng-list; Sat, 23 Feb 2002 02:42:32 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA02387 for ; Sat, 23 Feb 2002 02:42:31 -0600 (CST) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 16eXkh-0004V2-00; Sat, 23 Feb 2002 08:41:55 +0000 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C7679F1000089CB for linac-eng@plato1.aristotle.net; Sat, 23 Feb 2002 08:41:55 +0000 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C76778E00009499 for linac-eng@plato1.aristotle.net; Sat, 23 Feb 2002 08:41:55 +0000 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Sat, 23 Feb 2002 08:40:58 -0000 Message-ID: <9D4670F9FFF5D4119BED00508BE22C1D6A72C8@ARTEMIS> From: "Hodgson, Nick" To: "'linac-eng@plato1.aristotle.net'" Subject: Weekly QA checks - Elekta MLC Date: Sat, 23 Feb 2002 08:40:57 -0000 Importance: low X-Priority: 5 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hodgson, Nick" To: "'linac-eng@plato1.aristotle.net'" Subject: Weekly QA checks - Elekta MLC Date: Sat, 23 Feb 2002 08:40:57 -0000 Importance: low X-Priority: 5 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk To save us re-inventing the wheel, does anyone out there have examples of a basic QA checklist suitable for use on a weekly basis with an Elekta MLC machine? The intention is that this would be more from an electronics / mechanical viewpoint, rather than dosimetry etc. Any suggestions gratefully received! Thanks in advance, Nick Hodgson nhodgson@poole-tr.swest.nhs.uk 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Feb 27 15:27:19 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16g538-0002eE-00; Wed, 27 Feb 2002 15:27:19 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E62A71112F2; Wed, 27 Feb 2002 15:11:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA06978 for linac-eng-list; Wed, 27 Feb 2002 07:50:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from azvu.nl (nucleus.azvu.nl [130.37.210.210]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA06972 for ; Wed, 27 Feb 2002 07:50:35 -0600 (CST) Received: by nucleus.azvu.nl id <116170>; Wed, 27 Feb 2002 14:50:52 +0100 Message-Id: <02Feb27.145052cet.116170@nucleus.azvu.nl> From: "Geest, F.G.M. de" To: "'linac-eng@plato.aristotle.net'" Subject: EFD on Ximatron Date: Wed, 27 Feb 2002 14:49:47 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Geest, F.G.M. de" To: "'linac-eng@plato.aristotle.net'" Subject: EFD on Ximatron Date: Wed, 27 Feb 2002 14:49:47 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk > Does anyone has experience with the EFD (exact field display) on a > Ximatron? > If yes please contact me. > Frank > > E-mail fgm.geest@VUmc.nl > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 04 01:16:53 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16hg9s-0000si-00; Mon, 4 Mar 2002 01:16:53 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 40E471112F1; Mon, 4 Mar 2002 01:07:04 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA27127 for linac-eng-list; Sun, 3 Mar 2002 17:30:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web20508.mail.yahoo.com (web20508.mail.yahoo.com [216.136.226.143]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id RAA27118 for ; Sun, 3 Mar 2002 17:30:12 -0600 (CST) Message-ID: <20020303233006.75179.qmail@web20508.mail.yahoo.com> Received: from [203.109.250.96] by web20508.mail.yahoo.com via HTTP; Sun, 03 Mar 2002 15:30:06 PST Date: Sun, 3 Mar 2002 15:30:06 -0800 (PST) From: Sholomo Heler Subject: Lantis with Varian To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1017020210-1015198206=:72728" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 3 Mar 2002 15:30:06 -0800 (PST) From: Sholomo Heler Subject: Lantis with Varian To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="0-1017020210-1015198206=:72728" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --0-1017020210-1015198206=:72728 Content-Type: text/plain; charset=us-ascii Hi All, I would like to know if anybody is using the Lantis verification system with Varian Clinac 2100 CD including Millennium MLC.The questions I have are: 1. What is the Interface between Lantis and the machine (eg Siemens Primeview)2. Are there any known problems with the interfacing and usage.3. Could patients planned for the Siemens Primus be transferred to the Varian and vice versa, without replanning. Thanks for your response in advance Regards Shlomo --------------------------------- Do You Yahoo!? Yahoo! Sports - Sign up for Fantasy Baseball --0-1017020210-1015198206=:72728 Content-Type: text/html; charset=us-ascii
    Hi All,
     
    I would like to know if anybody is using the Lantis verification system with Varian Clinac 2100 CD including Millennium MLC.
    The questions I have are:
     
    1. What is the Interface between Lantis and the machine (eg Siemens Primeview)
    2. Are there any known problems with the interfacing and usage.
    3. Could patients planned for the Siemens Primus be transferred to the Varian and vice versa, without replanning.
     
    Thanks for your response in advance
     
     
    Regards
     
    Shlomo
     


    Do You Yahoo!?
    Yahoo! Sports - Sign up for Fantasy Baseball --0-1017020210-1015198206=:72728-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 05 14:26:56 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16iExz-0004oZ-00; Tue, 5 Mar 2002 14:26:56 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9EC3A1112F1; Tue, 5 Mar 2002 14:57:22 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA26331 for linac-eng-list; Tue, 5 Mar 2002 07:06:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ws3-3.us4.outblaze.com (205-158-62-93.outblaze.com [205.158.62.93]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA26327 for ; Tue, 5 Mar 2002 07:06:37 -0600 (CST) Received: (qmail 10893 invoked by uid 1001); 5 Mar 2002 13:06:03 -0000 Message-ID: <20020305130603.10892.qmail@email.com> Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Received: from [203.198.23.169] by ws3-3.us4.outblaze.com with http for kimyeung@email.com; Tue, 05 Mar 2002 08:06:02 -0500 From: "kim yeung" To: linac-eng@plato.aristotle.net Date: Tue, 05 Mar 2002 08:06:02 -0500 Subject: Re: Varian Carrousel Position Switch Adjustment X-Originating-Ip: 203.198.23.169 X-Originating-Server: ws3-3.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline From: "kim yeung" To: linac-eng@plato.aristotle.net Date: Tue, 05 Mar 2002 08:06:02 -0500 Subject: Re: Varian Carrousel Position Switch Adjustment X-Originating-Ip: 203.198.23.169 X-Originating-Server: ws3-3.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Colleagues, Varian 2300CD , Version 6.1 We have frequent carrousel/foil interlocks with error code 6X. This implies some position switches need to be adjusted. Each switch has three alternative positions, i.e CAM, Divot and Level(X). We found problem to adjust the position switch to pass all the ports. This may due to the fact the Carrousel is eccentric, and it is easy to get carrousel/foil interlocks at gantry angle other then zero(IEC). Does anyone know any procedure or tricks to adjust the carrousel position switch? Any suggestions / advice are welcome? Thanks in advance. Kim Yeung -- _______________________________________________ Sign-up for your own FREE Personalized E-mail at Email.com http://www.email.com/?sr=signup 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 05 16:23:28 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16iGmm-0005sE-00; Tue, 5 Mar 2002 16:23:28 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 93E731112F2; Tue, 5 Mar 2002 16:53:53 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA29899 for linac-eng-list; Tue, 5 Mar 2002 08:55:44 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from eigg.abel.net.uk (eigg.abel.net.uk [195.72.113.1]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA29894 for ; Tue, 5 Mar 2002 08:55:39 -0600 (CST) Received: (qmail 28587 invoked from network); 5 Mar 2002 14:55:02 -0000 Received: from ppp-3-4.5800-14.telinco.net (HELO rtphys) (212.1.150.4) by smtp0.abel.net.uk with SMTP; 5 Mar 2002 14:55:02 -0000 Message-ID: <001701c1c455$b92bbc40$36adfea9@abel.co.uk> From: "Radiotherapy Physics - RSH" To: Subject: Old but working Ximitron V tube Date: Tue, 5 Mar 2002 14:54:56 -0000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01C1C455.B6C7DBA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapy Physics - RSH" To: Subject: Old but working Ximitron V tube Date: Tue, 5 Mar 2002 14:54:56 -0000 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01C1C455.B6C7DBA0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0012_01C1C455.B6C7DBA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear all I have a 10 year old (approx.) but working Comet (150kVp and 8500T/min) = tube removed from a decommissioned TEM Ximitron V simulator last Friday, = Ist of March. It is free to anyone who wants to collect it. Regards John Macmillan Radiotherapy Physics Royal Shrewsbury Hospital Shrewsbury=3D20 UK 01743 261302 ------=_NextPart_000_0012_01C1C455.B6C7DBA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Dear all

    I have a 10 year old = (approx.) but=20 working Comet (150kVp and 8500T/min) tube removed from a decommissioned = TEM=20 Ximitron V simulator last Friday, Ist of March.

    It is free to = anyone who=20 wants to collect it.

    Regards

    John = Macmillan
    Radiotherapy=20 Physics
    Royal Shrewsbury Hospital
    Shrewsbury=3D20
    UK
    01743=20 261302

    ------=_NextPart_000_0012_01C1C455.B6C7DBA0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:18:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXZ9-0000CB-00; Wed, 06 Mar 2002 10:18:31 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AB5AD114194; Wed, 6 Mar 2002 10:48:34 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA24225 for linac-eng-list; Wed, 6 Mar 2002 03:19:02 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA24221 for ; Wed, 6 Mar 2002 03:19:00 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Mar 2002 10:18:22 +0100 Message-ID: <9D894AB8D748D3118A1800508B073AE601A49292@CLV4> From: "Lindroth Bernt, MFT CLV" To: "'Linac-eng'" Subject: =?iso-8859-1?Q?Re=3A_scot_thiesson=B4s_mail_about_missing_mess?= =?iso-8859-1?Q?ages?= Date: Wed, 6 Mar 2002 10:18:20 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA24222 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lindroth Bernt, MFT CLV" To: "'Linac-eng'" Subject: =?iso-8859-1?Q?Re=3A_scot_thiesson=B4s_mail_about_missing_mess?= =?iso-8859-1?Q?ages?= Date: Wed, 6 Mar 2002 10:18:20 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA24222 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi list! Yes, I feel as if I miss a message now and then on the list. Some discussions isn´t easy too follow because of missing e-mails. A couple of months ago someone requested answers to the list, as well as to the person asking, I would appreciate that too. I hope this reaches the outer world.... Bernt 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXa7-0000Cd-00; Wed, 06 Mar 2002 10:19:31 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6D7EB110602; Tue, 5 Mar 2002 20:25:51 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA18040 for linac-eng-list; Tue, 5 Mar 2002 13:18:14 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA18036 for ; Tue, 5 Mar 2002 13:18:12 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA29614; Tue, 5 Mar 2002 13:23:56 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: linac-eng@plato.aristotle.net, doug Date: Tue, 05 Mar 2002 13:18:06 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <3C8512A5.8750D659@cancerboard.ab.ca> Message-Id: <86TRZV3243TP72ZW2XM3Y2WD93WHF41.3c8519ee@RPC035> Subject: Re: test again Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: linac-eng@plato.aristotle.net, doug Date: Tue, 05 Mar 2002 13:18:06 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <3C8512A5.8750D659@cancerboard.ab.ca> Subject: Re: test again Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I hear ya loud and clear, both about the spam and the lame list so far. I f you are a Canadian and know how to play hockey (by default) you can post to : canadalist@yahoogroups.com Scot. 3/5/2002 12:47:02 PM, doug wrote: >I have now sent 6 posts to the list, only one has come through so far, >not very good odds. It only took three tries to get the first one >through. The first two were just a rant about getting back to my email >after a weekend away and finding 1 valid email and 9 spam emails from >this "linspam eng" list, which is totally pathetic. Having valid posts >to the list dissappear into the void just adds insult to injury. > >I don't have any anti-spam options on my email program, but all of the >other list servers that I am on aren't spam-friendly like this one is, >and so are not a problem. I guess the only answer is to unsub and be >done with it. > >Take care, >Doug > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXaE-0000ES-00; Wed, 06 Mar 2002 10:19:38 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 42175112D5B; Tue, 5 Mar 2002 23:50:07 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA03793 for linac-eng-list; Tue, 5 Mar 2002 16:21:46 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d07.mx.aol.com (imo-d07.mx.aol.com [205.188.157.39]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA03789 for ; Tue, 5 Mar 2002 16:21:45 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-d07.mx.aol.com (mail_out_v32.5.) id y.143.a8c3086 (3958) for ; Tue, 5 Mar 2002 17:21:02 -0500 (EST) Message-ID: <143.a8c3086.29b69ecd@aol.com> Date: Tue, 5 Mar 2002 17:21:01 EST Subject: CCX and "OLD" SIF To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Tue, 5 Mar 2002 17:21:01 EST Subject: CCX and "OLD" SIF To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Everyone: I have a need for an early model Varian High energy serial interface or the later model CCX used on a Cl-1800. I Need to repair or replace and have absolutely no experience trouble shooting either version. The old model was physically damaged AND the chips are mostly obsolete. The later model CCX appears to have two problems. It loses and output intermittently (about once an hour) and occasionally causes the 10's bit to "carry" at "Beam Off" if the units digit is a 9. Again this only occurs at "Beam Off" and in conjunction with a TW fault. I suspect that this is "noise" being routed from the CCX. With the CCX disconnected there is no problem. If anyone could shed light I greatly appreciate the assistance. Thanks in advance. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXaJ-0000GM-00; Wed, 06 Mar 2002 10:19:43 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 82DBA112D5D; Tue, 5 Mar 2002 23:50:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA03174 for linac-eng-list; Tue, 5 Mar 2002 16:19:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA03136 for ; Tue, 5 Mar 2002 16:19:12 -0600 (CST) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g25MIgU29105; Tue, 5 Mar 2002 15:18:43 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.23.113]) by icelus.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g25MIgs11899; Tue, 5 Mar 2002 15:18:43 -0700 (MST) Message-ID: <3C854460.EF00394@cancerboard.ab.ca> Date: Tue, 05 Mar 2002 15:19:12 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: Brian Martin Cc: "linac-eng@plato.aristotle.net" Subject: Re: RT-250 No High KV Out References: <3C851721.383FFF46@cancerboard.ab.ca> <3C852B6D.8F059CDF@scf.sk.ca> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 05 Mar 2002 15:19:12 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Accept-Language: en To: Brian Martin Cc: "linac-eng@plato.aristotle.net" Subject: Re: RT-250 No High KV Out Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Brian, Your right on the money. Found that the tap on the self-regulating transformer was at the end of its limit. Loosened the tap and moved it down an inch and now it can adjust. Strange... it is the first time in six years i've had that happen. Usually, when the hospital plays with the voltages our linacs start to act up (on 6x usually). Must be the age creeping up on it. thanks to all who replied... its a lot better than the spam of late. Brian Martin wrote: > Hi Ed, > > I am new to the Cancer Centre in Saskatoon. We had a similar problem here > with our RT250. I will try and explain it to you even with my crude > understanding of the equipment. Our machine would run fine at lower > energies but shut off at higher kv. There is a line regulator which shuts > it down when it goes out of limit. We beleive this started as a result of a > drop in our incoming voltage from the hospital. The input voltage on these > units has a low tolerance of 1% error. We then had to adjust the position > of the self tapping transformer in base of the control panel to the > output. Hope this helps. Good luck. > > Brian Martin > > Ed Rymes wrote: > > > Good Day All, > > Have a Philips RT-250 here that is giving me some problems. Works > > fine on low kv, (75kv) but on any higher kv like 225 and 250kv the > > machine drops right out. It is as if someone hit the off button. It > > shuts right down 2-3 seconds after hitting the beam on button. I'd > > suspect a short in the tube but it works fine on 75kv and the only > > difference would be in the control console. It shuts down too fast to > > try and measure things and there is no apparent signs of catastrophic > > damage( no smoking gun so to speak). Any tube failings i'm familiar with > > > > usually have outputs acting up first or totally dead. Any Ideas? > > > > -- > > Ed Rymes, B.Sc., C-Tech > > Technical Equipment Officer > > Dept. of Medical Physics > > Tom Baker Cancer Centre > > 1331 29th Street, NW > > Calgary, AB T2N 4N2 > > 403-670-1791 > > 403-670-2327 fax > > edwardry@cancerboard.ab.ca -- Ed Rymes, B.Sc., C-Tech Technical Equipment Officer Dept. of Medical Physics Tom Baker Cancer Centre 1331 29th Street, NW Calgary, AB T2N 4N2 403-670-1791 403-670-2327 fax edwardry@cancerboard.ab.ca 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXaN-0000Hc-00; Wed, 06 Mar 2002 10:19:47 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 40A1C112D73; Wed, 6 Mar 2002 07:21:37 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA20974 for linac-eng-list; Tue, 5 Mar 2002 23:38:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id XAA20969 for ; Tue, 5 Mar 2002 23:38:53 -0600 (CST) Received: (qmail 51179 invoked from network); 6 Mar 2002 05:32:16 -0000 Received: from unknown (HELO webmail06) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 6 Mar 2002 05:32:16 -0000 Message-ID: <11465505.1015392935660.JavaMail.root@webmail06> Date: Wed, 6 Mar 2002 13:35:35 +0800 (HKT) From: Jonathan Chan To: kim yeung , linac-eng Subject: Re: Varian Carrousel Position Switch Adjustment Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 6 Mar 2002 13:35:35 +0800 (HKT) From: Jonathan Chan To: kim yeung , linac-eng Subject: Re: Varian Carrousel Position Switch Adjustment Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk If you suspected the carrousel ring being loose, you will notice a big sym difference with gantry at zero and 90 or 270 degrees. A common problem with plunger. Usually it is the little screw that activates the microswitch for the FOIL interlock. Check that little screw. Jonathan Chan -----Original Message----- From: kim yeung Sent: Tue Mar 05 21:06:02 HKT 2002 To: linac-eng Cc: linac-eng Subject: Re: Varian Carrousel Position Switch Adjustment Hi Colleagues, Varian 2300CD , Version 6.1 We have frequent carrousel/foil interlocks with error code 6X. This implies some position switches need to be adjusted. Each switch has three alternative positions, i.e CAM, Divot and Level(X). We found problem to adjust the position switch to pass all the ports. This may due to the fact the Carrousel is eccentric, and it is easy to get carrousel/foil interlocks at gantry angle other then zero(IEC). Does anyone know any procedure or tricks to adjust the carrousel position switch? Any suggestions / advice are welcome? Thanks in advance. Kim Yeung -- _______________________________________________ Sign-up for your own FREE Personalized E-mail at Email.com http://www.email.com/?sr=signup 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXaO-0000Hx-00; Wed, 06 Mar 2002 10:19:48 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CA6C31105F3; Tue, 5 Mar 2002 19:47:05 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA11417 for linac-eng-list; Tue, 5 Mar 2002 12:01:12 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA11413 for ; Tue, 5 Mar 2002 12:01:10 -0600 (CST) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g25I0eU20164 for ; Tue, 5 Mar 2002 11:00:40 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.249.49]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g25I0fQ29911 for ; Tue, 5 Mar 2002 11:00:41 -0700 (MST) Message-ID: <3C850B4F.B30F0E7C@cancerboard.ab.ca> Date: Tue, 05 Mar 2002 11:15:43 -0700 From: doug X-Mailer: Mozilla 4.7 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Subject: Re: test References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 05 Mar 2002 11:15:43 -0700 From: doug X-Accept-Language: en To: linac-eng@plato.aristotle.net Subject: Re: test Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Second try on this one, that makes five messages sent, only seen one make it through so far. It only took three tries to get one through. The first two were just a rant about getting back to my email after a weekend away and finding 1 valid email and 9 spam emails from this "linspam eng" list, which is totally pathetic. Having valid posts to the list dissappear into the void just adds insult to injury. I don't have any anti-spam options on my email program, but all of the other list servers that I am on aren't spam-friendly like this one is, and so are not a problem. I guess the only answer is to unsub and be done with it. Take care, Doug scot thiesson wrote: > > Thanks for posting anyway... now I know why my post didn't make it either. > Anyone else having problems? Not that you'll get this post... > > 3/5/2002 9:47:42 AM, doug wrote: > > >Funny how the spam makes it through yet I seem to be unable to get a > >post through to the list. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXaT-0000JE-00; Wed, 06 Mar 2002 10:19:53 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 43224110617; Tue, 5 Mar 2002 21:40:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA20477 for linac-eng-list; Tue, 5 Mar 2002 13:57:16 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA20465 for ; Tue, 5 Mar 2002 13:57:10 -0600 (CST) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id <1BZJ63F7>; Tue, 5 Mar 2002 14:56:19 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA6D@phsexch6.partners.org> From: "Maddox, Buford J" To: "'kim yeung'" , linac-eng@plato.aristotle.net Subject: RE: Varian Carrousel Position Switch Adjustment Date: Tue, 5 Mar 2002 14:56:10 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'kim yeung'" , linac-eng@plato.aristotle.net Subject: RE: Varian Carrousel Position Switch Adjustment Date: Tue, 5 Mar 2002 14:56:10 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I position the switch so the roller is on the level part, then adjust it so that the roller just touches the level part. Works most of the time, occasional small tweak needed. After being done this way, seldom need to ever adjust it again. Jerry > -----Original Message----- > From: kim yeung [SMTP:kimyeung@email.com] > Sent: Tuesday, March 05, 2002 8:06 AM > To: linac-eng@plato.aristotle.net > Subject: Re: Varian Carrousel Position Switch Adjustment > > Hi Colleagues, > > Varian 2300CD , Version 6.1 > > We have frequent carrousel/foil interlocks with error code 6X. This > implies some position switches need to be adjusted. > > Each switch has three alternative positions, i.e CAM, Divot and Level(X). > We found problem to adjust the position switch to pass all the ports. This > may due to the fact the Carrousel is eccentric, and it is easy to get > carrousel/foil interlocks at gantry angle other then zero(IEC). > > Does anyone know any procedure or tricks to adjust the carrousel position > switch? > > Any suggestions / advice are welcome? > > Thanks in advance. > > Kim Yeung > > > -- > > _______________________________________________ > Sign-up for your own FREE Personalized E-mail at Email.com > http://www.email.com/?sr=signup > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXaT-0000JS-00; Wed, 06 Mar 2002 10:19:53 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EC2FB110616; Tue, 5 Mar 2002 21:40:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA20980 for linac-eng-list; Tue, 5 Mar 2002 14:06:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA20976 for ; Tue, 5 Mar 2002 14:06:38 -0600 (CST) Received: (qmail 25514 invoked from network); 5 Mar 2002 20:05:54 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 5 Mar 2002 20:05:55 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Tue, 5 Mar 2002 12:03:12 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA001FE2CCE@SERVER20> From: Don Melsness To: "'Ed Rymes'" , linac-eng@plato.aristotle.net Subject: RE: RT-250 No High KV Out Date: Tue, 5 Mar 2002 12:06:12 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Don Melsness To: "'Ed Rymes'" , linac-eng@plato.aristotle.net Subject: RE: RT-250 No High KV Out Date: Tue, 5 Mar 2002 12:06:12 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Ed, Check the connections and operation of the motor driven regulating transformer inside the control console. If the slider drives to the end limit switch, it will power off the unit during treatment. Don Melsness BC Cancer Agency Vancouver -----Original Message----- From: Ed Rymes [mailto:edwardry@CancerBoard.ab.ca] Sent: Tuesday, March 05, 2002 11:06 AM To: linac-eng@plato.aristotle.net Subject: RT-250 No High KV Out Good Day All, Have a Philips RT-250 here that is giving me some problems. Works fine on low kv, (75kv) but on any higher kv like 225 and 250kv the machine drops right out. It is as if someone hit the off button. It shuts right down 2-3 seconds after hitting the beam on button. I'd suspect a short in the tube but it works fine on 75kv and the only difference would be in the control console. It shuts down too fast to try and measure things and there is no apparent signs of catastrophic damage( no smoking gun so to speak). Any tube failings i'm familiar with usually have outputs acting up first or totally dead. Any Ideas? -- Ed Rymes, B.Sc., C-Tech Technical Equipment Officer Dept. of Medical Physics Tom Baker Cancer Centre 1331 29th Street, NW Calgary, AB T2N 4N2 403-670-1791 403-670-2327 fax edwardry@cancerboard.ab.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:19:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXaY-0000Kk-00; Wed, 06 Mar 2002 10:19:58 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3500C110606; Tue, 5 Mar 2002 20:45:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA19288 for linac-eng-list; Tue, 5 Mar 2002 13:35:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f194.pav1.hotmail.com [64.4.31.194]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA19283 for ; Tue, 5 Mar 2002 13:35:22 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 5 Mar 2002 11:34:46 -0800 Received: from 142.92.65.10 by pv1fd.pav1.hotmail.msn.com with HTTP; Tue, 05 Mar 2002 19:34:45 GMT X-Originating-IP: [142.92.65.10] From: "Oktay Ureten" To: linac-eng@plato.aristotle.net Subject: Linac Service Engineer Wanted Date: Tue, 05 Mar 2002 19:34:45 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 05 Mar 2002 19:34:46.0379 (UTC) FILETIME=[CE92A3B0:01C1C47C] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [142.92.65.10] From: "Oktay Ureten" To: linac-eng@plato.aristotle.net Subject: Linac Service Engineer Wanted Date: Tue, 05 Mar 2002 19:34:45 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 05 Mar 2002 19:34:46.0379 (UTC) FILETIME=[CE92A3B0:01C1C47C] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi linac engineers ! A service company in Turkey needs a qualified linac service engineer for a short term maintenance and calibration of a Clinac 2300 machine. This work includes replacing the rotary joint, general maintenance and different calibrations of the machine. This is supposed to be a 3-4 days work. If interested, please contact me at ureten@ieee.org for detailed information. Regards, Oktay Ureten _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:20:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXar-0000Nn-00; Wed, 06 Mar 2002 10:20:17 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 05B7B1105FE; Tue, 5 Mar 2002 20:21:27 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA16506 for linac-eng-list; Tue, 5 Mar 2002 13:05:57 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA16502 for ; Tue, 5 Mar 2002 13:05:55 -0600 (CST) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g25J5SU22754 for ; Tue, 5 Mar 2002 12:05:28 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.23.113]) by icelus.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g25J5Ss08141 for ; Tue, 5 Mar 2002 12:05:28 -0700 (MST) Message-ID: <3C851721.383FFF46@cancerboard.ab.ca> Date: Tue, 05 Mar 2002 12:06:10 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: RT-250 No High KV Out Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 05 Mar 2002 12:06:10 -0700 From: Ed Rymes Organization: Tom Baker Cancer Centre X-Accept-Language: en To: "linac-eng@plato.aristotle.net" Subject: RT-250 No High KV Out Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good Day All, Have a Philips RT-250 here that is giving me some problems. Works fine on low kv, (75kv) but on any higher kv like 225 and 250kv the machine drops right out. It is as if someone hit the off button. It shuts right down 2-3 seconds after hitting the beam on button. I'd suspect a short in the tube but it works fine on 75kv and the only difference would be in the control console. It shuts down too fast to try and measure things and there is no apparent signs of catastrophic damage( no smoking gun so to speak). Any tube failings i'm familiar with usually have outputs acting up first or totally dead. Any Ideas? -- Ed Rymes, B.Sc., C-Tech Technical Equipment Officer Dept. of Medical Physics Tom Baker Cancer Centre 1331 29th Street, NW Calgary, AB T2N 4N2 403-670-1791 403-670-2327 fax edwardry@cancerboard.ab.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:20:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXas-0000Np-00; Wed, 06 Mar 2002 10:20:18 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 71B4F1105F2; Tue, 5 Mar 2002 19:43:00 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA13262 for linac-eng-list; Tue, 5 Mar 2002 12:32:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA13257 for ; Tue, 5 Mar 2002 12:32:24 -0600 (CST) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g25IVwU21433 for ; Tue, 5 Mar 2002 11:31:58 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.249.49]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g25IVxQ02212 for ; Tue, 5 Mar 2002 11:31:59 -0700 (MST) Message-ID: <3C8512A5.8750D659@cancerboard.ab.ca> Date: Tue, 05 Mar 2002 11:47:02 -0700 From: doug X-Mailer: Mozilla 4.7 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Subject: test again Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 05 Mar 2002 11:47:02 -0700 From: doug X-Accept-Language: en To: linac-eng@plato.aristotle.net Subject: test again Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have now sent 6 posts to the list, only one has come through so far, not very good odds. It only took three tries to get the first one through. The first two were just a rant about getting back to my email after a weekend away and finding 1 valid email and 9 spam emails from this "linspam eng" list, which is totally pathetic. Having valid posts to the list dissappear into the void just adds insult to injury. I don't have any anti-spam options on my email program, but all of the other list servers that I am on aren't spam-friendly like this one is, and so are not a problem. I guess the only answer is to unsub and be done with it. Take care, Doug 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 10:40:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iXus-0000VL-00; Wed, 06 Mar 2002 10:40:58 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 467DB1112F3; Wed, 6 Mar 2002 11:11:01 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA24742 for linac-eng-list; Wed, 6 Mar 2002 04:01:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA24738 for ; Wed, 6 Mar 2002 04:01:56 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Mar 2002 11:01:26 +0100 Message-ID: <9D894AB8D748D3118A1800508B073AE601A49293@CLV4> From: "Lindroth Bernt, MFT CLV" To: "'Linac-eng'" Subject: Polariod 8x10processor Date: Wed, 6 Mar 2002 11:01:24 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA24739 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lindroth Bernt, MFT CLV" To: "'Linac-eng'" Subject: Polariod 8x10processor Date: Wed, 6 Mar 2002 11:01:24 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA24739 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi list! Does anyone have a 8x10-processor for Polaroid-film (T804) on the shelf and doesn´t need it, please contact me. We are a fully digital unit and have no possibilities to develope films when our x-raydepartment goes digital later this year. We are trying out some method to check beam-light differences. Any suggestions how to solve this problem? All the best from Sweden. Bernt Lindroth, Centralhospital in Vaxjo 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 12:23:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iZVh-0001FL-00; Wed, 06 Mar 2002 12:23:05 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 44F8B1112F2; Wed, 6 Mar 2002 12:53:06 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA26061 for linac-eng-list; Wed, 6 Mar 2002 05:32:49 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA26057 for ; Wed, 6 Mar 2002 05:32:47 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2650.21) id ; Wed, 6 Mar 2002 12:32:36 +0100 Message-ID: To: linac-eng@plato.aristotle.net Subject: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 12:32:33 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato.aristotle.net Subject: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 12:32:33 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi folks, I hope this posting comse throug the frst time I send it......... We have a funny fault with our Cinac 2100 C s/n 417 (1992, C2, analog gun) Operating personel mentioned a regular low doserate during morningcheck. We assumed a 'normal' morningsickness but, looking with a scope, we saw the GUN-I pulse was only 2 microseconds. After a minute or so the pulse widened to 6 microseconds and we got a normal doserate back. Any sugestion is welcome. For those who are interested: we do have a jpg-pic of the gun-i and ldpwr2 Bye, Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 12:57:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ia3L-00006G-00; Wed, 06 Mar 2002 12:57:51 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E3E621112F5; Wed, 6 Mar 2002 13:27:51 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA26781 for linac-eng-list; Wed, 6 Mar 2002 06:12:22 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA26775 for ; Wed, 6 Mar 2002 06:12:18 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Wed, 6 Mar 2002 07:11:43 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA71@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Jonathan Chan'" , kim yeung , linac-eng Subject: RE: Varian Carrousel Position Switch Adjustment Date: Wed, 6 Mar 2002 07:11:43 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Jonathan Chan'" , kim yeung , linac-eng Subject: RE: Varian Carrousel Position Switch Adjustment Date: Wed, 6 Mar 2002 07:11:43 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk it is worth the trouble to learn to use the LED readouts. Position 2 includes the switches on the rotating part, and the pin switch. Record the normal readings and compare when the fault occurrs. For instance, 6e is normally 72 on my 2100, 32 when the pin doesn't seat. 4 bit is the pin. Expect a code 91 for this fault, but get a 99. Besides the adjustment and switch, the pin error can be caused by an air solenoid malfunction. The pot voltage is also available in hex form. I also find it useful to use the manual positioning feature, which doesn't depend on the pin. Jerry > -----Original Message----- > From: Jonathan Chan [SMTP:sky8808@hutchcity.com] > Sent: Wednesday, March 06, 2002 12:36 AM > To: kim yeung; linac-eng > Subject: Re: Varian Carrousel Position Switch Adjustment > > If you suspected the carrousel ring being loose, you will notice a big sym > difference with gantry at zero and 90 or 270 degrees. > > A common problem with plunger. Usually it is the little screw that > activates the microswitch for the FOIL interlock. Check that little > screw. > > Jonathan Chan > > -----Original Message----- > From: kim yeung > Sent: Tue Mar 05 21:06:02 HKT 2002 > To: linac-eng > Cc: linac-eng > Subject: Re: Varian Carrousel Position Switch Adjustment > > Hi Colleagues, > > Varian 2300CD , Version 6.1 > > We have frequent carrousel/foil interlocks with error code 6X. This > implies some position switches need to be adjusted. > > Each switch has three alternative positions, i.e CAM, Divot and Level(X). > We found problem to adjust the position switch to pass all the ports. This > may due to the fact the Carrousel is eccentric, and it is easy to get > carrousel/foil interlocks at gantry angle other then zero(IEC). > > Does anyone know any procedure or tricks to adjust the carrousel position > switch? > > Any suggestions / advice are welcome? > > Thanks in advance. > > Kim Yeung > > > -- > > _______________________________________________ > Sign-up for your own FREE Personalized E-mail at Email.com > target="_blank">http://www.email.com/?sr=signup > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 13:43:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ial9-0000OS-00; Wed, 06 Mar 2002 13:43:07 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 250F51112F2; Wed, 6 Mar 2002 14:13:06 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA28260 for linac-eng-list; Wed, 6 Mar 2002 06:54:01 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA28256 for ; Wed, 6 Mar 2002 06:53:59 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16iave-0003C1-00; Wed, 06 Mar 2002 12:53:58 +0000 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C812844000451A2 for Linac-eng@plato.aristotle.net; Wed, 6 Mar 2002 12:53:58 +0000 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C812C35000599B8 for Linac-eng@plato.aristotle.net; Wed, 6 Mar 2002 12:53:58 +0000 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Wed, 06 Mar 2002 12:53:34 +0000 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Wed, 06 Mar 2002 12:53:15 +0000 From: "Steve Simpson" To: Subject: Re: RT-250 No High KV Out Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA28257 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 06 Mar 2002 12:53:15 +0000 From: "Steve Simpson" To: Subject: Re: RT-250 No High KV Out Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA28257 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Ed, We have an RT100 and have just seen similar symptoms to what you describe. It would run at 55KV but trip off the CB immediately at 70KV and above. We found that the HT cable connection at the tube was breaking down -tracking across the surface of the inner insulation. We cleaned it up and applied some new grease and it runs at 100KV. We still have another problem however. The mA dial needle jumps upwards from time to time (more often just after switch on). We suspect it's the tube failing. Can you (or anyone else) comment on this? Steve Simpson Medical Physics Service Cookridge Hospital Leeds, LS16 6QB UK >>> Ed Rymes 05-Mar-02 7:06:10 pm >>> Good Day All, Have a Philips RT-250 here that is giving me some problems. Works fine on low kv, (75kv) but on any higher kv like 225 and 250kv the machine drops right out. It is as if someone hit the off button. It shuts right down 2-3 seconds after hitting the beam on button. I'd suspect a short in the tube but it works fine on 75kv and the only difference would be in the control console. It shuts down too fast to try and measure things and there is no apparent signs of catastrophic damage( no smoking gun so to speak). Any tube failings i'm familiar with usually have outputs acting up first or totally dead. Any Ideas? -- Ed Rymes, B.Sc., C-Tech Technical Equipment Officer Dept. of Medical Physics Tom Baker Cancer Centre 1331 29th Street, NW Calgary, AB T2N 4N2 403-670-1791 403-670-2327 fax edwardry@cancerboard.ab.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 14:11:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ibCm-0000ag-00; Wed, 06 Mar 2002 14:11:40 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 045341112F2; Wed, 6 Mar 2002 14:41:39 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA29621 for linac-eng-list; Wed, 6 Mar 2002 07:24:49 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA29617 for ; Wed, 6 Mar 2002 07:24:48 -0600 (CST) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA5435 for ; Wed, 6 Mar 2002 07:21:44 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Wed, 06 Mar 2002 07:24:09 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Wed, 06 Mar 2002 07:24:01 -0600 From: "Stephen Jordan" To: , Subject: Re: Varian cl.2100 low doserate Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 06 Mar 2002 07:24:01 -0600 From: "Stephen Jordan" To: , Subject: Re: Varian cl.2100 low doserate Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I'd like to be copied on the replies to CJ's question. Thanks ! Steve Jordan UAB Rad Phy >>> 03/06/02 05:32AM >>> Hi folks, I hope this posting comse throug the frst time I send it......... We have a funny fault with our Cinac 2100 C s/n 417 (1992, C2, analog gun) Operating personel mentioned a regular low doserate during morningcheck. We assumed a 'normal' morningsickness but, looking with a scope, we saw the GUN-I pulse was only 2 microseconds. After a minute or so the pulse widened to 6 microseconds and we got a normal doserate back. Any sugestion is welcome. For those who are interested: we do have a jpg-pic of the gun-i and ldpwr2 Bye, Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 15:34:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16icUp-00015k-00; Wed, 06 Mar 2002 15:34:23 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 222EA1112F3; Wed, 6 Mar 2002 16:04:20 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA05387 for linac-eng-list; Wed, 6 Mar 2002 08:50:40 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.comcast.net (smtp.comcast.net [24.153.64.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05381 for ; Wed, 6 Mar 2002 08:50:38 -0600 (CST) Received: from cc438936b (bgp610459bgs.midltn01.nj.comcast.net [68.39.69.124]) by mtaout03.icomcast.net (iPlanet Messaging Server 5.1 (built Feb 6 2002)) with SMTP id <0GSK003FE3VJVN@mtaout03.icomcast.net> for linac-eng@plato.aristotle.net; Wed, 06 Mar 2002 09:50:08 -0500 (EST) Date: Wed, 06 Mar 2002 09:48:47 -0500 From: "Thomas J. Fox" Subject: RE: Lantis with Varian In-reply-to: <20020303233006.75179.qmail@web20508.mail.yahoo.com> To: Sholomo Heler , linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: multipart/alternative; boundary="Boundary_(ID_YrbaRvD7MZOCOortSJpAPw)" Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 06 Mar 2002 09:48:47 -0500 From: "Thomas J. Fox" Subject: RE: Lantis with Varian In-reply-to: <20020303233006.75179.qmail@web20508.mail.yahoo.com> To: Sholomo Heler , linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Content-type: multipart/alternative; boundary="Boundary_(ID_YrbaRvD7MZOCOortSJpAPw)" Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --Boundary_(ID_YrbaRvD7MZOCOortSJpAPw) Content-type: text/plain; charset=Windows-1252 Content-transfer-encoding: 7BIT We have a 2100C (no MLC) using Lantis for V&R. Siemens supplied the Lantis server and Workstation (we can't use Primeview so everything must still be entered manually). 1.. The interfacing was a software update for the 2100C and a comm. cable. After enabling the V&R in the 2100C, we were done. 2.. Haven't heard of any problems with this setup. 3.. We just got past acceptance on a Siemens Primus and I don't know about whether or not they will be able to shift patients without replanning. Tom Fox (former Siemens eng.) -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Sholomo Heler Sent: Sunday, March 03, 2002 6:30 PM To: linac-eng@plato.aristotle.net Subject: Lantis with Varian Hi All, I would like to know if anybody is using the Lantis verification system with Varian Clinac 2100 CD including Millennium MLC. The questions I have are: 1. What is the Interface between Lantis and the machine (eg Siemens Primeview) 2. Are there any known problems with the interfacing and usage. 3. Could patients planned for the Siemens Primus be transferred to the Varian and vice versa, without replanning. Thanks for your response in advance Regards Shlomo ---------------------------------------------------------------------------- -- Do You Yahoo!? Yahoo! Sports - Sign up for Fantasy Baseball --Boundary_(ID_YrbaRvD7MZOCOortSJpAPw) Content-type: text/html; charset=Windows-1252 Content-transfer-encoding: 7BIT
    We have a 2100C (no MLC) using Lantis for V&R.  Siemens supplied the Lantis server and Workstation (we can't use Primeview so everything must still be entered manually). 
    1. The interfacing was a software update for the 2100C and a comm. cable.  After enabling the V&R in the 2100C, we were done. 
    2. Haven't heard of any problems with this setup.
    3. We just got past acceptance on a Siemens Primus and I don't know about whether or not they will be able to shift patients without replanning. 
    Tom Fox
    (former Siemens eng.)
     
    -----Original Message-----
    From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Sholomo Heler
    Sent: Sunday, March 03, 2002 6:30 PM
    To: linac-eng@plato.aristotle.net
    Subject: Lantis with Varian

    Hi All,
     
    I would like to know if anybody is using the Lantis verification system with Varian Clinac 2100 CD including Millennium MLC.
    The questions I have are:
     
    1. What is the Interface between Lantis and the machine (eg Siemens Primeview)
    2. Are there any known problems with the interfacing and usage.
    3. Could patients planned for the Siemens Primus be transferred to the Varian and vice versa, without replanning.
     
    Thanks for your response in advance
     
     
    Regards
     
    Shlomo
     


    Do You Yahoo!?
    Yahoo! Sports - Sign up for Fantasy Baseball
    --Boundary_(ID_YrbaRvD7MZOCOortSJpAPw)-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 15:58:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16icrq-0001If-00; Wed, 06 Mar 2002 15:58:10 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 524E11112F1; Wed, 6 Mar 2002 16:28:06 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA06420 for linac-eng-list; Wed, 6 Mar 2002 09:11:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA06410 for ; Wed, 6 Mar 2002 09:11:14 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Mar 2002 09:13:58 -0600 Message-ID: From: "Turner, Guy" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato.aristotle.net Subject: RE: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 09:13:58 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato.aristotle.net Subject: RE: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 09:13:58 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I would seriously suspect the gun. See if bumping up the filiaments .5 volts makes a difference. -----Original Message----- From: CJ.de.Bruijne@walcheren.ziekenhuis.nl [mailto:CJ.de.Bruijne@walcheren.ziekenhuis.nl] Sent: Wednesday, March 06, 2002 5:33 AM To: linac-eng@plato.aristotle.net Subject: Varian cl.2100 low doserate Hi folks, I hope this posting comse throug the frst time I send it......... We have a funny fault with our Cinac 2100 C s/n 417 (1992, C2, analog gun) Operating personel mentioned a regular low doserate during morningcheck. We assumed a 'normal' morningsickness but, looking with a scope, we saw the GUN-I pulse was only 2 microseconds. After a minute or so the pulse widened to 6 microseconds and we got a normal doserate back. Any sugestion is welcome. For those who are interested: we do have a jpg-pic of the gun-i and ldpwr2 Bye, Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 17:24:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ieDV-0001uK-00; Wed, 06 Mar 2002 17:24:37 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9453B1112F1; Wed, 6 Mar 2002 17:54:31 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA08678 for linac-eng-list; Wed, 6 Mar 2002 09:54:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA08671 for ; Wed, 6 Mar 2002 09:54:39 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g26FrqD19251; Wed, 6 Mar 2002 10:53:52 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B74.005751D2 ; Wed, 6 Mar 2002 10:53:45 -0500 X-Lotus-FromDomain: LRCC To: CJ.de.Bruijne@walcheren.ziekenhuis.nl Cc: linac-eng@plato.aristotle.net Message-ID: <85256B74.00575001.00@mail.lrcc.on.ca> Date: Wed, 6 Mar 2002 10:53:40 -0500 Subject: Re: Varian cl.2100 low doserate Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: CJ.de.Bruijne@walcheren.ziekenhuis.nl Cc: linac-eng@plato.aristotle.net Date: Wed, 6 Mar 2002 10:53:40 -0500 Subject: Re: Varian cl.2100 low doserate Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Does this problem only happen in 6x or is 6x the first energy you run in your morning checkout? The first thing that comes to my mind for an analog gun deck showing this kind of problem would be to check or change the "LIGHT PIPE ASSEMBLY P/N C829844" And the other thing would be to swap out the GUN TRIGGER DELAY CARD. This is on the cold deck side. The circuit is on this card that determines the width of the GUN pulse, it is just an RC circuit that sets the width, you could have anything like a bad capacitor, bad connection, bad transistor, bad op-amp. take your pick. Please keep the list informed as to what you find. Randy McVittie London Regional Cancer Centre London, Ontario 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 17:30:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ieJ6-0001uj-00; Wed, 06 Mar 2002 17:30:24 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 040271112F1; Wed, 6 Mar 2002 18:00:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA12646 for linac-eng-list; Wed, 6 Mar 2002 10:49:11 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d01.mx.aol.com (imo-d01.mx.aol.com [205.188.157.33]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA12642 for ; Wed, 6 Mar 2002 10:49:10 -0600 (CST) From: PJShoop@aol.com Received: from PJShoop@aol.com by imo-d01.mx.aol.com (mail_out_v32.5.) id y.159.a0cd21c (30960) for ; Wed, 6 Mar 2002 11:48:27 -0500 (EST) Message-ID: <159.a0cd21c.29b7a25b@aol.com> Date: Wed, 6 Mar 2002 11:48:27 EST Subject: Machines Per Engineer To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_159.a0cd21c.29b7a25b_boundary" X-Mailer: AOL 6.0 for Windows US sub 10556 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: PJShoop@aol.com Date: Wed, 6 Mar 2002 11:48:27 EST Subject: Machines Per Engineer To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_159.a0cd21c.29b7a25b_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_159.a0cd21c.29b7a25b_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Greetings to all on the list. I'm trying to justify another engineer at our centers and would like to know the average number of machines per engineer at your facility. Currently I have 8 machines with an additional 2 machines still under warrenty. These are not all in one place either. I have 4 centers seperated by as much as 60 miles. Only one machine is covered by a manufacturer's service contract. I know we are all overworked but if you factor in my also being (acting) network administrator for our WAN, it's getting outrageous. If I had some sort of survey report I could present to the powers that be, maybe I could get justification for the second engineer. So, if you could email me with the number of machines per engineer I can post the results if you like. Thank you in advance. Phil Shoop - PJShoop@aol.com Maryland Regional Cancer Centers Silver Spring, MD --part1_159.a0cd21c.29b7a25b_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Greetings to all on the list.  I'm trying to justify another engineer at our centers and would like to know the average number of machines per engineer at your facility.  Currently I have 8 machines with an additional 2 machines still under warrenty. These are not all in one place either. I have 4 centers seperated by as much as 60 miles. Only one machine is covered by a manufacturer's service contract.

    I know we are all overworked but if you factor in my also being (acting) network administrator for our WAN,  it's getting outrageous.  If I had some sort of survey report I could present to the powers that be, maybe I could get justification for the second engineer.

    So, if you could email me with the number of machines per engineer I can post the results if you like.

    Thank you in advance.

    Phil Shoop  -  PJShoop@aol.com
    Maryland Regional Cancer Centers
    Silver Spring, MD     --part1_159.a0cd21c.29b7a25b_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 18:00:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16iem6-00021Q-00; Wed, 06 Mar 2002 18:00:22 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 440CD1112F1; Wed, 6 Mar 2002 18:30:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA15501 for linac-eng-list; Wed, 6 Mar 2002 11:19:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA15497 for ; Wed, 6 Mar 2002 11:19:51 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Wed, 6 Mar 2002 12:19:16 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA76@phsexch6.partners.org> From: "Maddox, Buford J" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato.aristotle.net Subject: RE: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 12:19:15 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato.aristotle.net Subject: RE: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 12:19:15 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Pulse width is adjustable on PCB in gun deck, circuit sick. Portal vision can do this also. Jerry > -----Original Message----- > From: CJ.de.Bruijne@walcheren.ziekenhuis.nl > [SMTP:CJ.de.Bruijne@walcheren.ziekenhuis.nl] > Sent: Wednesday, March 06, 2002 6:33 AM > To: linac-eng@plato.aristotle.net > Subject: Varian cl.2100 low doserate > > Hi folks, > > I hope this posting comse throug the frst time I send it......... > > We have a funny fault with our Cinac 2100 C s/n 417 (1992, C2, analog gun) > Operating personel mentioned a regular low doserate during morningcheck. > We assumed a 'normal' morningsickness but, looking with a scope, we saw > the GUN-I pulse was only 2 microseconds. > After a minute or so the pulse widened to 6 microseconds and we got a > normal > doserate back. > > Any sugestion is welcome. > For those who are interested: we do have a jpg-pic of the gun-i and ldpwr2 > > Bye, > Keesjan de Bruijne > Ziekenhuis Walcheren > Vlissingen, the Netherlands > afd. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 18:01:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ien5-00021t-00; Wed, 06 Mar 2002 18:01:23 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A6D8D1112F1; Wed, 6 Mar 2002 18:31:17 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA16474 for linac-eng-list; Wed, 6 Mar 2002 11:27:14 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA16469 for ; Wed, 6 Mar 2002 11:27:13 -0600 (CST) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id <1531VFM9>; Wed, 6 Mar 2002 12:26:23 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA78@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Stephen Jordan'" , linac-eng@plato.aristotle.net, CJ.de.Bruijne@walcheren.ziekenhuis.nl Subject: RE: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 12:26:22 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Stephen Jordan'" , linac-eng@plato.aristotle.net, CJ.de.Bruijne@walcheren.ziekenhuis.nl Subject: RE: Varian cl.2100 low doserate Date: Wed, 6 Mar 2002 12:26:22 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Sorry for extra post, just remembered that the tail biter transistors did something like this once. Clamp circuit also does length also? Don't have any analog machines now, no books. > -----Original Message----- > From: Stephen Jordan [SMTP:srjordan@uabmc.edu] > Sent: Wednesday, March 06, 2002 8:24 AM > To: linac-eng@plato.aristotle.net; CJ.de.Bruijne@walcheren.ziekenhuis.nl > Subject: Re: Varian cl.2100 low doserate > > I'd like to be copied on the replies to CJ's question. Thanks ! > Steve Jordan > UAB Rad Phy > > >>> 03/06/02 05:32AM >>> > Hi folks, > > I hope this posting comse throug the frst time I send it......... > > We have a funny fault with our Cinac 2100 C s/n 417 (1992, C2, analog > gun) > Operating personel mentioned a regular low doserate during > morningcheck. > We assumed a 'normal' morningsickness but, looking with a scope, we > saw > the GUN-I pulse was only 2 microseconds. > After a minute or so the pulse widened to 6 microseconds and we got a > normal > doserate back. > > Any sugestion is welcome. > For those who are interested: we do have a jpg-pic of the gun-i and > ldpwr2 > > Bye, > Keesjan de Bruijne > Ziekenhuis Walcheren > Vlissingen, the Netherlands > afd. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 06 20:18:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16igvN-0002Fm-00; Wed, 06 Mar 2002 20:18:05 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4F89B1112F1; Wed, 6 Mar 2002 20:47:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA29261 for linac-eng-list; Wed, 6 Mar 2002 13:38:59 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA29252 for ; Wed, 6 Mar 2002 13:38:57 -0600 (CST) Received: (qmail 14498 invoked from network); 6 Mar 2002 19:38:20 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 6 Mar 2002 19:38:20 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Mar 2002 11:35:38 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA005CC2711@SERVER20> From: Randy Wick To: "'Linac-eng list'" Subject: RE: Varian Portal Vision questions Date: Wed, 6 Mar 2002 11:38:41 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy Wick To: "'Linac-eng list'" Subject: RE: Varian Portal Vision questions Date: Wed, 6 Mar 2002 11:38:41 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk (This is a reply I tried to send a couple of times, but was rejected by the mail server. It's a bit after the fact, but hopefully still useful) Yes, we did get interlocks, including 23 (XYZ__Conv) as well as Control Indications of the same nature (A1 A2 A6). Sounds like the data kept on the RAM chips is just the cal data. I guess the procedure is to record the preset positions (ie before trouble), set up for cal and reset the RAM and re-cal the arm, then restore the presets. Not really difficult, once you know what's causing the hardware trip! >From other replies, it seems the clock at mp6 is the one to adjust, using pot1, to 104uSec. > -----Original Message----- > From: Kerry Clark [mailto:KClark@adhb.govt.nz] > Sent: Monday, February 25, 2002 4:24 PM > To: 'Randy Wick'; 'Linac-eng list' > Subject: RE: Varian Portal Vision questions, and a tip > > > Hi Randy, > We have pulled both RAM chips from the R-arm CPU before and > shorted the > legs, to clear I/L 23 ( XYZ_CONV). > I'm curious about the problem you mention with pre-set > positions going bad, > did you have any interlocks show up? > Kerry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 07 13:32:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ix4I-0008Ci-00; Thu, 07 Mar 2002 13:32:22 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8A5D11112F1; Thu, 7 Mar 2002 14:01:56 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA18809 for linac-eng-list; Thu, 7 Mar 2002 06:34:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r03.mx.aol.com (imo-r03.mx.aol.com [152.163.225.99]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA18805 for ; Thu, 7 Mar 2002 06:34:44 -0600 (CST) From: RSAINC1@aol.com Received: from RSAINC1@aol.com by imo-r03.mx.aol.com (mail_out_v32.5.) id y.85.18711221 (16485) for ; Thu, 7 Mar 2002 07:33:53 -0500 (EST) Message-ID: <85.18711221.29b8b83f@aol.com> Date: Thu, 7 Mar 2002 07:34:07 EST Subject: Confused To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: RSAINC1@aol.com Date: Thu, 7 Mar 2002 07:34:07 EST Subject: Confused To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Just an observation, but I mostly just receive responses from this list. I seldon see the original email? Why? Anyone know? Roger 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 07 16:54:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16j0Dr-0003ps-00; Thu, 07 Mar 2002 16:54:27 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DA3641112F2; Thu, 7 Mar 2002 17:23:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA26996 for linac-eng-list; Thu, 7 Mar 2002 09:25:43 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm032.netvigator.com (imsm032.netvigator.com [218.102.23.102]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA26992 for ; Thu, 7 Mar 2002 09:25:41 -0600 (CST) Received: (qmail 20979 invoked from network); 7 Mar 2002 15:25:30 -0000 Received: from pcd438085.netvigator.com (HELO yeung) (203.218.228.85) by imsm032.netvigator.com with SMTP; 7 Mar 2002 15:25:30 -0000 Message-ID: <002e01c1c5ec$288a71c0$9b00fea9@yeung> From: "k yeung" To: Subject: Re: Varian carrousel error code Date: Thu, 7 Mar 2002 23:24:22 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002B_01C1C62F.367B5720" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Varian carrousel error code Date: Thu, 7 Mar 2002 23:24:22 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002B_01C1C62F.367B5720" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_002B_01C1C62F.367B5720 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 2300CD Version 6.1 Could anyone advise the meaning of Carrousel error code 60 (10 port)? = What are the differences between the error codes 60 & 70?=20 What are the possible causes of them? Thanks in advance. Kim Yeung ------=_NextPart_000_002B_01C1C62F.367B5720 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
        Varian 2300CD  Version=20 6.1
     
    Could anyone advise the meaning of Carrousel error = code=20  60 (10 port)?  What are the differences between the error = codes 60=20 & 70? 
     
    What are the possible causes of them?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_002B_01C1C62F.367B5720-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 08 00:34:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16j7PE-0006aQ-00; Fri, 08 Mar 2002 00:34:40 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1D4991112F1; Fri, 8 Mar 2002 01:04:03 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA23327 for linac-eng-list; Thu, 7 Mar 2002 17:00:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp1.goforhost.com ([208.178.66.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA23261 for ; Thu, 7 Mar 2002 17:00:38 -0600 (CST) From: mary69@cranfield.ac.uk Date: Thu, 7 Mar 2002 17:57:27 -0500 Message-Id: <200203072257.g27MvRE20431@smtp1.goforhost.com> X-Mailer: Pine.LNX.4.30 Reply-To: To: Subject: Hey Fred Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: mary69@cranfield.ac.uk Date: Thu, 7 Mar 2002 17:57:27 -0500 Reply-To: To: Subject: Hey Fred Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Fred, It was nice to talk to you today I will send the proposal tonight. Thanks, Heidi 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 08 22:56:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16jSLZ-0000UZ-00; Fri, 08 Mar 2002 22:56:17 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E32961112F1; Fri, 8 Mar 2002 23:25:15 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA07732 for linac-eng-list; Fri, 8 Mar 2002 16:21:43 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA07680 for ; Fri, 8 Mar 2002 16:21:40 -0600 (CST) Received: (qmail 3464 invoked from network); 8 Mar 2002 22:21:03 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 8 Mar 2002 22:21:03 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Fri, 8 Mar 2002 14:18:15 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA005CC271D@SERVER20> From: Randy Wick To: "'Linac-eng list'" Subject: Elekta MLC High-torque system Date: Fri, 8 Mar 2002 14:21:22 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy Wick To: "'Linac-eng list'" Subject: Elekta MLC High-torque system Date: Fri, 8 Mar 2002 14:21:22 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Is anyone using an Elekta SL20 with MLC, that has the high-torque motor upgrade? We seem to be having problems with the DMux board (that drives the motors) not lasting very long, around a year. On the old system this board rarely failed. Recently we have had the failure rate increase so that the lifetime is more like 5-6 months. Anyone else having problems with this board? ----------------------------------- Randy Wick Radiotherapy Service Fraser Valley Cancer Centre Surrey, BC Canada rwick@bccancer.bc.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Mar 09 10:26:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16jd7g-0003qp-00; Sat, 09 Mar 2002 10:26:41 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 665301112F1; Sat, 9 Mar 2002 10:55:27 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA16603 for linac-eng-list; Sat, 9 Mar 2002 03:36:51 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web20305.mail.yahoo.com (web20305.mail.yahoo.com [216.136.226.86]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA16599 for ; Sat, 9 Mar 2002 03:36:50 -0600 (CST) Message-ID: <20020309093641.59257.qmail@web20305.mail.yahoo.com> Received: from [203.198.23.29] by web20305.mail.yahoo.com via HTTP; Sat, 09 Mar 2002 01:36:41 PST Date: Sat, 9 Mar 2002 01:36:41 -0800 (PST) From: kim yeung Subject: Re: Loose Carrousel To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-738062300-1015666601=:54990" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 9 Mar 2002 01:36:41 -0800 (PST) From: kim yeung Subject: Re: Loose Carrousel To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="0-738062300-1015666601=:54990" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --0-738062300-1015666601=:54990 Content-Type: text/plain; charset=us-ascii Hi Colleagues, Varian 2300 CD, Version 76.1 We have frequent carrosel / foil interlocks at gantry angle 270 (ICU), where the poistion swtiches did not break / make properly. It seems we have a loose carrousel. Could anyone advise how do we "tighten" the carrousel ? Thanks in advance. Kim Yeung --------------------------------- Do You Yahoo!? Try FREE Yahoo! Mail - the world's greatest free email! --0-738062300-1015666601=:54990 Content-Type: text/html; charset=us-ascii

    Hi Colleagues,

          Varian 2300 CD, Version 76.1

    We have frequent carrosel / foil interlocks at gantry angle 270 (ICU), where the  poistion swtiches did not break / make  properly.  It seems we have a loose carrousel.

    Could anyone advise how do we "tighten" the carrousel ?

    Thanks in advance.

    Kim Yeung

     

     

     


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    Try FREE Yahoo! Mail - the world's greatest free email! --0-738062300-1015666601=:54990-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 12 13:22:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16klIQ-0001oL-00; Tue, 12 Mar 2002 13:22:26 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D2EA11112F7; Tue, 12 Mar 2002 13:49:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA13124 for linac-eng-list; Tue, 12 Mar 2002 06:23:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq02.netvigator.com (imsmq02.netvigator.com [208.139.127.36]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA13120 for ; Tue, 12 Mar 2002 06:23:07 -0600 (CST) Received: (qmail 4638 invoked from network); 12 Mar 2002 12:23:02 -0000 Received: from pcd421045.netvigator.com (HELO yeung) (203.218.211.45) by imsmq02.netvigator.com with SMTP; 12 Mar 2002 12:23:02 -0000 Message-ID: <001701c1c9c0$7b698020$d075fea9@yeung> From: "k yeung" To: Subject: Re: Carrousel / Foil interlock Date: Tue, 12 Mar 2002 20:21:48 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01C1CA03.896206A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Carrousel / Foil interlock Date: Tue, 12 Mar 2002 20:21:48 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01C1CA03.896206A0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0014_01C1CA03.896206A0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 2300CD, Version 6.1 We have frequent carrousel/foil interlock in one of our 2300CD at gantry = 270, we suspected it may due to loose carrousel. When we checked the = carrousel position (with the 16 HEX switch at position A & B) we found = the hex code of all energies were flickering.=20 Does this contribute to the frequent carrousel / foil interlock? How do = we fix this "flickering problem"?=20 Thanks in advance. Kim Yeung ------=_NextPart_000_0014_01C1CA03.896206A0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
            Varian 2300CD, = Version=20 6.1
     
    We have frequent carrousel/foil interlock in one of = our 2300CD=20 at gantry 270, we suspected it may due to loose carrousel.  When we = checked=20 the carrousel position (with the 16 HEX switch at position A & B) we = found=20 the  hex code of all energies were flickering.
     
    Does this contribute to the frequent carrousel / = foil=20 interlock? How do we fix this "flickering problem"?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0014_01C1CA03.896206A0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 12 16:32:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16koG2-0003Tb-00; Tue, 12 Mar 2002 16:32:10 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D34421112F2; Tue, 12 Mar 2002 16:59:32 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA18107 for linac-eng-list; Tue, 12 Mar 2002 09:25:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from whses01.wellmont.org (whses01.wellmont.org [151.102.96.168]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA18098 for ; Tue, 12 Mar 2002 09:25:17 -0600 (CST) Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Mar 2002 10:24:37 -0500 Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Mar 2002 10:14:36 -0500 Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Mar 2002 10:07:43 -0500 Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Mar 2002 10:00:54 -0500 From: "Falcinelli, Marc A" To: "'linac-eng@plato1.aristotle.net'" Message-ID: <7AF61AA0D5DBD511B2990090274E7316796925@whses02.wellmont.org> Subject: Fluoroscopic QA test objects Date: Tue, 12 Mar 2002 10:00:52 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Falcinelli, Marc A" To: "'linac-eng@plato1.aristotle.net'" Subject: Fluoroscopic QA test objects Date: Tue, 12 Mar 2002 10:00:52 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Fellow Engineers, Can anyone recommend an easy to use, yet affordable QA test object that can be used to evaluate the fluoro image quality on Varian Ximatron simulators. My objective here is to have a test object at each of my three facilities that the therapists can use as a quick reference check if the fluoro quality is in question. These simulators have last image hold units attached and the Doctors along with the therapists have a tendency to tweek and turn the knobs and end up not being able to see squat. Guess who gets a phone call next. I would like to set up a procedure they can easily follow using a test object to return to a known good reference point. Varian utilizes the Univ. of Leeds test objects (TOR 18, etc.) as a PMI and ATP QA device. Unfortunately, these objects are not easily available. I have found some other objects but they are typically sold as part of a kit which has a pretty hefty price tag. I am just looking for a down and dirty device that can be easily used and is affordable. I'm sure somebody out there has been down this road before, so any info would be greatly appreciated. And to answer your question Guy, I am still alive over here at the other end of the state. Thanks to all in advance, Marc 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 12 17:44:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16kpNp-000429-00; Tue, 12 Mar 2002 17:44:17 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1AA7E1112F2; Tue, 12 Mar 2002 18:11:37 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA23703 for linac-eng-list; Tue, 12 Mar 2002 11:09:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA23698 for ; Tue, 12 Mar 2002 11:09:26 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Mar 2002 12:08:42 -0500 Message-ID: From: "Rozenblat, Alex" To: "'Randy Wick'" , "'Linac-eng list'" Subject: RE: Elekta MLC High-torque system Date: Tue, 12 Mar 2002 12:08:42 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'Randy Wick'" , "'Linac-eng list'" Subject: RE: Elekta MLC High-torque system Date: Tue, 12 Mar 2002 12:08:42 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi, all We installed similar system on one of our Electas only a couple of months ago, so I can not add much but there was a warning sign from the very beginning - one DMux board - brand new for upgrade - was bad when we tried to install it. Alex Rozenblat, TSRCC, Toronto -----Original Message----- From: Randy Wick [mailto:rwick@bccancer.bc.ca] Sent: 08 March 2002 17:21 To: 'Linac-eng list' Subject: Elekta MLC High-torque system Is anyone using an Elekta SL20 with MLC, that has the high-torque motor upgrade? We seem to be having problems with the DMux board (that drives the motors) not lasting very long, around a year. On the old system this board rarely failed. Recently we have had the failure rate increase so that the lifetime is more like 5-6 months. Anyone else having problems with this board? ----------------------------------- Randy Wick Radiotherapy Service Fraser Valley Cancer Centre Surrey, BC Canada rwick@bccancer.bc.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 12 18:25:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16kq1c-00048U-00; Tue, 12 Mar 2002 18:25:24 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E3D571112F2; Tue, 12 Mar 2002 18:52:44 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA26317 for linac-eng-list; Tue, 12 Mar 2002 11:44:49 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA26312 for ; Tue, 12 Mar 2002 11:44:48 -0600 (CST) Received: (qmail 20561 invoked from network); 12 Mar 2002 17:44:10 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 12 Mar 2002 17:44:10 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Mar 2002 09:41:35 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA006F9C63B@SERVER20> From: Denny Yu To: "'Rozenblat, Alex'" , "'Linac-eng list'" Subject: RE: Elekta MLC High-torque system Date: Tue, 12 Mar 2002 09:44:33 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Denny Yu To: "'Rozenblat, Alex'" , "'Linac-eng list'" Subject: RE: Elekta MLC High-torque system Date: Tue, 12 Mar 2002 09:44:33 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Alex, We had similar problem that during the upgrade, the Demux board was not functioning and we installed a cooling fan to cool the board and ran the system until Elekta sent us a replacement. Denny Yu Radiation Therapy Fraser Valley Cancer Centre Surrey BC -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Tuesday, March 12, 2002 9:09 AM To: 'Randy Wick'; 'Linac-eng list' Subject: RE: Elekta MLC High-torque system Hi, all We installed similar system on one of our Electas only a couple of months ago, so I can not add much but there was a warning sign from the very beginning - one DMux board - brand new for upgrade - was bad when we tried to install it. Alex Rozenblat, TSRCC, Toronto -----Original Message----- From: Randy Wick [mailto:rwick@bccancer.bc.ca] Sent: 08 March 2002 17:21 To: 'Linac-eng list' Subject: Elekta MLC High-torque system Is anyone using an Elekta SL20 with MLC, that has the high-torque motor upgrade? We seem to be having problems with the DMux board (that drives the motors) not lasting very long, around a year. On the old system this board rarely failed. Recently we have had the failure rate increase so that the lifetime is more like 5-6 months. Anyone else having problems with this board? ----------------------------------- Randy Wick Radiotherapy Service Fraser Valley Cancer Centre Surrey, BC Canada rwick@bccancer.bc.ca 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 12 19:36:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16kr89-0004KO-00; Tue, 12 Mar 2002 19:36:13 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B12211112F2; Tue, 12 Mar 2002 20:03:32 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA03019 for linac-eng-list; Tue, 12 Mar 2002 12:59:44 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f14.law4.hotmail.com [216.33.149.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA02990 for ; Tue, 12 Mar 2002 12:59:43 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 12 Mar 2002 10:59:12 -0800 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Tue, 12 Mar 2002 18:59:12 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato.aristotle.net Subject: RT-250 Date: Tue, 12 Mar 2002 18:59:12 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 12 Mar 2002 18:59:12.0788 (UTC) FILETIME=[FFBEBD40:01C1C9F7] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato.aristotle.net Subject: RT-250 Date: Tue, 12 Mar 2002 18:59:12 +0000 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 12 Mar 2002 18:59:12.0788 (UTC) FILETIME=[FFBEBD40:01C1C9F7] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I am looking for some RT-250 Cables. The RT-250 as most may know is know longer in production, much less supported. Does anyone know of a company that makes aftermarket HT cables for the unit. I would also entertain the idea of some used cables if they could be had Thanks David David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" linac-eng@plato1.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 12 19:55:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16krR5-0004LV-00; Tue, 12 Mar 2002 19:55:47 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 992211112F2; Tue, 12 Mar 2002 20:23:06 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA03960 for linac-eng-list; Tue, 12 Mar 2002 13:20:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hhnetra2.harthosp.org ([199.231.29.249]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA03956 for ; Tue, 12 Mar 2002 13:20:44 -0600 (CST) Received: from HHCC-Message_Server by hhnetra2.harthosp.org with Novell_GroupWise; Tue, 12 Mar 2002 14:11:43 -0500 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 12 Mar 2002 14:11:31 -0500 From: "Robert Lindeyer" To: Subject: RT-100 Needs a good home Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_772AC8FF.E68777BE" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 12 Mar 2002 14:11:31 -0500 From: "Robert Lindeyer" To: Subject: RT-100 Needs a good home Content-Type: multipart/mixed; boundary="=_772AC8FF.E68777BE" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_772AC8FF.E68777BE Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline For the cost of removal and shipping you can have a Phjillips RT-100 = superfical x-ray unit. The unit works but has intermittant arcing at high = KV. I believe the the tube needs to be replaced. I did test the cable by disconnetcing it from the tube and did not see any = arcing.=20 If you are interested please contact me directly.=20 Robert Lindeyer Clinical Engineer Radiation Oncology Hartford Hospital --=_772AC8FF.E68777BE Content-Type: text/x-vcard Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="Robert Lindeyer.vcf" QkVHSU46VkNBUkQNClZFUlNJT046Mi4xDQpYLUdXVFlQRTpVU0VSDQpGTjpMaW5kZXllciwgUm9i ZXJ0DQpURUw7V09SSzo1NDUtNDM0Ng0KT1JHOjtNZWRpY2FsIFBoeXNpY3MNClRFTDtQUkVGO0ZB WDo1NDUtMTUwMA0KRU1BSUw7V09SSztQUkVGO05HVzpSbGluZGV5DQpOOkxpbmRleWVyO1JvYmVy dA0KVElUTEU6RW5naW5lZXINClgtR1dVU0VSSUQ6UmxpbmRleQ0KRU5EOlZDQVJEDQoNCg== --=_772AC8FF.E68777BE-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 02:48:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16kxs4-0004ej-00; Wed, 13 Mar 2002 02:48:04 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4DFD61112F2; Wed, 13 Mar 2002 03:15:15 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA24309 for linac-eng-list; Tue, 12 Mar 2002 20:11:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA24305 for ; Tue, 12 Mar 2002 20:11:43 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id OAA06031 for ; Wed, 13 Mar 2002 14:58:34 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Wed, 13 Mar 2002 15:08:01 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 13 Mar 2002 15:07:59 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 13 Mar 2002 15:07:43 +1300 From: "Dave Pinchin" To: Subject: closed access to list. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id UAA24306 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 13 Mar 2002 15:07:43 +1300 From: "Dave Pinchin" To: Subject: closed access to list. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id UAA24306 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, I don't want to revisit a previous issue but...... I've had it up to here with spam. I have noticed that there are fewer genuine postings and suspect that we are losing valuable colleagues from the list. If we allow this trend to continue there will be no point in this list. Suggestion. Close access to the list. Only allow members to contribute. Membership can be freely given to engineers and interested bona-fide groups. Maybe this will stop the continual flow of e-diarrhea. Dave. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 07:44:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l2Ul-0005Gi-00; Wed, 13 Mar 2002 07:44:19 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D7D091112F2; Wed, 13 Mar 2002 08:11:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA00766 for linac-eng-list; Wed, 13 Mar 2002 01:13:01 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from doros.ulleval.no ([158.36.186.9]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA00762 for ; Wed, 13 Mar 2002 01:12:59 -0600 (CST) Received: from castor.mail.uus.no (unverified) by doros.ulleval.no (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Wed, 13 Mar 2002 08:13:54 +0100 Received: from bacchus.uus.no ([100.77.130.66]) by castor.mail.uus.no with Microsoft SMTPSVC(5.0.2195.2966); Wed, 13 Mar 2002 08:15:12 +0100 Received: from atlas.ullevaal.uus.no (unverified) by bacchus.uus.no (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Wed, 13 Mar 2002 08:12:25 +0100 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: SV: closed access to list. Disposition-Notification-To: "Haugsnes Anne Berit" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Wed, 13 Mar 2002 08:12:28 +0100 Message-ID: <4F756D76DDBDE147A1CE1643F3764F740159A9@atlas.ullevaal.uus.no> Thread-Topic: closed access to list. Thread-Index: AcHKPjgq7FCI1KtIQ9qLVvC2LUKHWQAIBEyQ From: "Haugsnes Anne Berit" To: X-OriginalArrivalTime: 13 Mar 2002 07:15:12.0593 (UTC) FILETIME=[D10A3C10:01C1CA5E] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA00763 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Subject: SV: closed access to list. Disposition-Notification-To: "Haugsnes Anne Berit" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Wed, 13 Mar 2002 08:12:28 +0100 Thread-Topic: closed access to list. Thread-Index: AcHKPjgq7FCI1KtIQ9qLVvC2LUKHWQAIBEyQ From: "Haugsnes Anne Berit" To: X-OriginalArrivalTime: 13 Mar 2002 07:15:12.0593 (UTC) FILETIME=[D10A3C10:01C1CA5E] X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA00763 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk IKKE SENSITIVT INNHOLD Dave I totaly agree! I have also had it up to here (points to the same spot) and would be very glad to see the spam go away! Anne Anne Berit Haugsnes Nils Lauritssønsvei 27a 0854 Oslo, Norway jobb: +47 23016538 mob: +47 47638251 "I think, therefore I am single" -----Opprinnelig melding----- Fra: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sendt: 13. mars 2002 03:08 Til: linac-eng@plato.aristotle.net Emne: closed access to list. G'day, I don't want to revisit a previous issue but...... I've had it up to here with spam. I have noticed that there are fewer genuine postings and suspect that we are losing valuable colleagues from the list. If we allow this trend to continue there will be no point in this list. Suggestion. Close access to the list. Only allow members to contribute. Membership can be freely given to engineers and interested bona-fide groups. Maybe this will stop the continual flow of e-diarrhea. Dave. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. ********************************************************************** This footnote confirms that this email message has been swept for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 11:13:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l5kj-0007VI-00; Wed, 13 Mar 2002 11:13:01 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AE4BD1112F3; Wed, 13 Mar 2002 11:40:03 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA04222 for linac-eng-list; Wed, 13 Mar 2002 04:41:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA04218 for ; Wed, 13 Mar 2002 04:41:16 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16l6BZ-00072a-00; Wed, 13 Mar 2002 10:40:45 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3C811D7E000E9B1E for linac-eng@plato.aristotle.net; Wed, 13 Mar 2002 10:40:45 +0000 Received: from exchange2.hillsrd (193.130.72.200) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C8D4B8800024BF0 for linac-eng@plato.aristotle.net; Wed, 13 Mar 2002 10:40:45 +0000 Received: by mail.addenbrookes.anglox.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Wed, 13 Mar 2002 10:41:06 -0000 Message-ID: <07EBC420AD13D5118C6A0002A52865C23B14DF@mail.addenbrookes.anglox.nhs.uk> From: "Twyman, Paul" To: linac-eng@plato.aristotle.net Subject: RE: SV: closed access to list. Date: Wed, 13 Mar 2002 10:41:02 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Twyman, Paul" To: linac-eng@plato.aristotle.net Subject: RE: SV: closed access to list. Date: Wed, 13 Mar 2002 10:41:02 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi people I must agree with the sentiments of the previous replies. The list does seem to be very quiet these days and not much relevant traffic. Are everyone's machines really working perfectly or is everyone fed up of the Spam. Closed access gets my vote. Paul T Medical Physics dept Box 152 Addenbrookes hospital Cambridge CB2 2QQ United Kingdom tel 01223 586782 fax 01223 257137 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 11:46:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l6Gz-0007wo-00; Wed, 13 Mar 2002 11:46:21 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7DC281112F1; Wed, 13 Mar 2002 12:13:23 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA04637 for linac-eng-list; Wed, 13 Mar 2002 05:09:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA04633 for ; Wed, 13 Mar 2002 05:09:46 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16l6aE-0006Cy-00; Wed, 13 Mar 2002 11:06:14 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C812844000CCB06 for linac-eng@plato.aristotle.net; Wed, 13 Mar 2002 11:06:14 +0000 Received: from email.rbbh_msdomain1 (195.104.159.2) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C8D4B880002617B for linac-eng@plato.aristotle.net; Wed, 13 Mar 2002 11:06:14 +0000 Received: by email.rbbh-tr.anglox.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Wed, 13 Mar 2002 11:06:13 -0000 Message-ID: From: Whittard Paul To: "'linac-eng'" Subject: RE: RT-250 Date: Wed, 13 Mar 2002 11:06:09 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Whittard Paul To: "'linac-eng'" Subject: RE: RT-250 Date: Wed, 13 Mar 2002 11:06:09 -0000 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk You could try Essex X-ray, or your local agents for this company. See their web page: www.essex-x-ray.com. Paul Whittard Royal Berkshire Hospital Reading RG1 5AN Tel: +44 (0) 118 9877 355 Fax: +44 (0) 118 9877 377 > -----Original Message----- > From: David Price [SMTP:roast_em@hotmail.com] > Sent: 12 March 2002 18:59 > To: linac-eng@plato.aristotle.net > Subject: RT-250 > > I am looking for some RT-250 Cables. The RT-250 as most may know is know > longer in production, much less supported. Does anyone know of a company > that makes aftermarket HT cables for the unit. > > I would also entertain the idea of some used cables if they could be had > > Thanks > > David > > > > > David Price > SHands Cancer Center > 2000 SW archer Rd > Gainesville Fla, 32610 > W 352-395-0316 > > Opinions expressed here are entirely my own and do not constitute any > affirmation from my employer, the University of Florida, or my pet gerbil, > > Herbie > > "Linac Engineers List Server (E-mail)" > linac-eng@plato1.aristotle.net > > > > > _________________________________________________________________ > Join the world's largest e-mail service with MSN Hotmail. > http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 12:02:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l6Wu-00084p-00; Wed, 13 Mar 2002 12:02:48 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B66A71112F2; Wed, 13 Mar 2002 12:29:49 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA05238 for linac-eng-list; Wed, 13 Mar 2002 05:28:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA05231 for ; Wed, 13 Mar 2002 05:28:37 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g2DBSTF18392 for ; Wed, 13 Mar 2002 05:28:29 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g2DBSTR18388 for ; Wed, 13 Mar 2002 05:28:29 -0600 (CST) Received: through eSafe SMTP Relay 1015458316; Wed Mar 13 05:28:29 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 13 Mar 2002 05:28:29 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E4C@wmhmail.phci.org> From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: Millennium MLC Varian FYI Date: Wed, 13 Mar 2002 05:28:24 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1CA82.30214310" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: Millennium MLC Varian FYI Date: Wed, 13 Mar 2002 05:28:24 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1CA82.30214310" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1CA82.30214310 Content-Type: text/plain Hi to all Millennium MLC users, I thought I would give a little information about the fans used to cool the transceiver and motor boards on the MLC. I have had a few calls to see what I was using as a replacement, for two years now the Panaflo Model FBA06T12L, DIGI- KEY part number P9724-ND has worked just fine, no failures, one thing that the fans have that are different is that the fans are a little thicker than the OEM type. So I left the finger guards off to use the existing screws. Also the the fan that mounts behind the A side PCB mounting panel has to be turned 180, so the blades do not hit the wiring. Also I am looking for defective CPU boards for the MLC Controller, if you have any give me a call. Good Luck Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 ------_=_NextPart_001_01C1CA82.30214310 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Millennium MLC Varian FYI

    Hi to all Millennium MLC users, I = thought I would give a little information about the fans used to cool = the transceiver and motor boards on the MLC. I have had a few calls to = see what I was using as a replacement, for two years now the Panaflo = Model FBA06T12L,  DIGI- KEY part number P9724-ND has worked just = fine, no failures, one thing that the fans have that are different is = that the fans are a little thicker than the OEM type. So I left the = finger guards off to use the existing screws. Also the the fan that = mounts behind the A side PCB mounting panel has to be turned 180, so = the blades do not hit the wiring.  Also I am looking for defective = CPU boards for the MLC Controller, if you have any give me a call. =

    Good Luck

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


    ------_=_NextPart_001_01C1CA82.30214310-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 12:07:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l6bT-00086T-00; Wed, 13 Mar 2002 12:07:31 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 30D0C1112F1; Wed, 13 Mar 2002 12:34:32 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA05351 for linac-eng-list; Wed, 13 Mar 2002 05:33:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ccotrust.co.uk (marvin.ccotrust.co.uk [194.217.10.246]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA05344 for ; Wed, 13 Mar 2002 05:33:22 -0600 (CST) Received: by firewall1.ccotrust.co.uk id <45>; Wed, 13 Mar 2002 10:53:44 +0000 Message-Id: <02Mar13.105344gmt.45@firewall1.ccotrust.co.uk> From: Philip Mayles To: linac-eng@plato.aristotle.net Subject: RE: SV: closed access to list. Date: Wed, 13 Mar 2002 11:33:00 +0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.0.1460.8) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA05348 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Philip Mayles To: linac-eng@plato.aristotle.net Subject: RE: SV: closed access to list. Date: Wed, 13 Mar 2002 11:33:00 +0000 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA05348 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk All that closed access means is that it is not possible for non subscribers to post to the list. I fail to see why this is a problem - any bona fide person can still join by sending an email to the list but people like "Lonely Girl" and people with email addresses like "xxidjfl" can be excluded. If people want to receive this rubbish there are plenty of internet sites they can join !!!! Philip Mayles Clatterbridge Centre for Oncology -----Original Message----- From: Stuart Vessey [mailto:stuart@radcl.ruu.nl] Sent: 13 March 2002 09:57 To: linac-eng@plato.aristotle.net; Haugsnes Anne Berit Subject: Re: SV: closed access to list. Revisiting this again, with the frequency (and content) of the spam reaching the list, I feel that a move to a closed (subscriber only) list may well be justified. Here are some of the reasons for such a move that I can think of. 1. The list is losing subscribers. 2. Subscribers system administrators may begin to query why they are viewing "inappropriate material" - porn ads may be counted. 3 The server could end up being blacklisted, rendering the list virtually useless. Just my 2 eurocents worth Stuart Subject: SV: closed access to list. Date sent: Wed, 13 Mar 2002 08:12:28 +0100 From: "Haugsnes Anne Berit" To: > IKKE SENSITIVT INNHOLD > > Dave > > I totaly agree! I have also had it up to here (points to the same spot) > and would be very glad to see the spam go away! > > Anne > > Anne Berit Haugsnes > Nils Lauritssønsvei 27a > 0854 Oslo, Norway > > jobb: +47 23016538 > mob: +47 47638251 > > "I think, therefore I am single" > > -----Opprinnelig melding----- > Fra: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] > Sendt: 13. mars 2002 03:08 > Til: linac-eng@plato.aristotle.net > Emne: closed access to list. > > > G'day, > I don't want to revisit a previous issue but...... > > I've had it up to here with spam. > I have noticed that there are fewer genuine postings and suspect that we > are losing valuable colleagues from the list. If we allow this trend to > continue there will be no point in this list. > > Suggestion. Close access to the list. Only allow members to contribute. > Membership can be freely given to engineers and interested bona-fide > groups. Maybe this will stop the continual flow of e-diarrhea. > > Dave. > Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 12:53:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l7K0-0008H7-00; Wed, 13 Mar 2002 12:53:32 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B82951112F1; Wed, 13 Mar 2002 13:20:29 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA06785 for linac-eng-list; Wed, 13 Mar 2002 06:21:59 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA06780 for ; Wed, 13 Mar 2002 06:21:57 -0600 (CST) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Wed, 13 Mar 2002 13:20:36 +0100 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Wed, 13 Mar 2002 13:20:36 +0100 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A6BB@exchange-5.orebroll.se> To: linac-eng@plato.aristotle.net Subject: SV: SV: closed access to list. Date: Wed, 13 Mar 2002 13:20:35 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: linac-eng@plato.aristotle.net Subject: SV: SV: closed access to list. Date: Wed, 13 Mar 2002 13:20:35 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi, I get maybe one or two spam per day from this list. Every time one arrives (well nearly every time) I put a new message filter in place to remove them. This means that my spam filter list is pretty big but on the other hand I don't get a lot of hassle. It would be a pity if a lot of people leave because of the spam as it is fairly simple to prevent. Hopefully you can either do the same or switch to another mail program (or browser) if your's doesn't provide filtering. Keep those messages coming. Regards Tel of Sweden. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 12:54:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l7LE-0008HP-00; Wed, 13 Mar 2002 12:54:48 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 64C3B1112F2; Wed, 13 Mar 2002 13:21:48 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA06804 for linac-eng-list; Wed, 13 Mar 2002 06:22:56 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from Aphrodite.nki.nl (Aphrodite.nki.nl [192.87.97.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA06800 for ; Wed, 13 Mar 2002 06:22:55 -0600 (CST) Received: from Hephaistos.nki.nl (Hephaistos.nki.nl [192.87.97.5]) by Aphrodite.nki.nl (8.9.3+Sun/8.9.3) with SMTP id NAA16629 for ; Wed, 13 Mar 2002 13:22:25 +0100 (MET) Received: FROM peperomia BY Hephaistos.nki.nl ; Wed Mar 13 13:19:09 2002 +0100 From: "Henk vd Gugten" To: "Twyman, Paul" , Subject: RE: SV: closed access to list. Date: Wed, 13 Mar 2002 13:25:12 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 In-Reply-To: <07EBC420AD13D5118C6A0002A52865C23B14DF@mail.addenbrookes.anglox.nhs.uk> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Henk vd Gugten" To: "Twyman, Paul" , Subject: RE: SV: closed access to list. Date: Wed, 13 Mar 2002 13:25:12 +0100 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 In-Reply-To: <07EBC420AD13D5118C6A0002A52865C23B14DF@mail.addenbrookes.anglox.nhs.uk> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Greetings to everyone What bothers me too is why the list is so quiet. However to me it seems too simple to blame it on people leaving the list because of the frequency of spam. I suggest It may have to do also with some of the discussion threads that developed in the past, like the LMO-thread. After a while I found them boaring, with endless repetition of the obvious,and flaming language creeping in them. The list is a unique professional forum for all those working with clinical accelerators and their ancillary systems and instruments. May be it would stimulate meaningfull contributions to the list if we do some advertisement for it in regional and national contacts with collegues in other institutes. maybe not every collegue is aware or has access to this opportunity to share in lively discussions about linac engineering, maintenance and troubleshooting. Personally I have no real problem with the occasional spam. I delete it immediately and do not even give it a second thought. However if the list decides to restrict on membership applications as a means to exclude spam, that is also ok with me. greetings, Henk Hendrik W. van der Gugten Technical Specialist Radiotherapy Netherlands Cancer Institute Plesmanlaan 121 voice xx31.20.512.2116 1066 CX Amsterdam fax xx31.20.669.1101 the Netherlands email gugten@nki.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 12:59:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l7Pm-0008Jh-00; Wed, 13 Mar 2002 12:59:30 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 57AFB1112F1; Wed, 13 Mar 2002 13:26:30 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA06983 for linac-eng-list; Wed, 13 Mar 2002 06:26:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f116.law8.hotmail.com [216.33.241.116]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA06979 for ; Wed, 13 Mar 2002 06:26:47 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 13 Mar 2002 04:26:17 -0800 Received: from 207.67.109.70 by lw8fd.law8.hotmail.msn.com with HTTP; Wed, 13 Mar 2002 12:26:16 GMT X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: Linac-Eng@plato.aristotle.net Subject: Millennium MLC Varian FYI Date: Wed, 13 Mar 2002 06:26:16 -0600 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 13 Mar 2002 12:26:17.0021 (UTC) FILETIME=[45E7EED0:01C1CA8A] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: Linac-Eng@plato.aristotle.net Subject: Millennium MLC Varian FYI Date: Wed, 13 Mar 2002 06:26:16 -0600 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 13 Mar 2002 12:26:17.0021 (UTC) FILETIME=[45E7EED0:01C1CA8A] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi to all Millennium MLC users, I thought I would give a little information about the fans used to cool the transceiver and motor boards on the MLC. I have had a few calls to see what I was using as a replacement, for two years now the Panaflo Model FBA06T12L, DIGI- KEY part number P9724-ND has worked just fine, no failures, one thing that the fans have that are different is that the fans are a little thicker than the OEM type. So I left the finger guards off to use the existing screws. Also the the fan that mounts behind the A side PCB mounting panel has to be turned 180, so the blades do not hit the wiring. Also I am looking for defective CPU boards for the MLC Controller, if you have any give me a call. Good Luck Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 13:21:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l7kc-0008Rj-00; Wed, 13 Mar 2002 13:21:02 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8A9A51112F1; Wed, 13 Mar 2002 13:48:02 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA07758 for linac-eng-list; Wed, 13 Mar 2002 06:48:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc54.attbi.com (rwcrmhc54.attbi.com [216.148.227.87]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA07754 for ; Wed, 13 Mar 2002 06:48:16 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc54.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020313124746.IPNL1214.rwcrmhc54.attbi.com@c1784162a> for ; Wed, 13 Mar 2002 12:47:46 +0000 Message-ID: <002101c1ca8d$6bc8b640$99ddf70c@mshome.net> From: "Rich Kimball" To: References: Subject: Re: closed access to list. Date: Wed, 13 Mar 2002 06:48:48 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: Subject: Re: closed access to list. Date: Wed, 13 Mar 2002 06:48:48 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave...I agree with you, but the recent poll that was taken indicated our peers wish the list kept open. All for one and one for all? Rich ----- Original Message ----- From: "Dave Pinchin" To: Sent: Tuesday, March 12, 2002 8:07 PM Subject: closed access to list. > G'day, > I don't want to revisit a previous issue but...... > > I've had it up to here with spam. > I have noticed that there are fewer genuine postings and suspect that we are losing valuable colleagues from the list. If we allow this trend to continue there will be no point in this list. > > Suggestion. Close access to the list. Only allow members to contribute. > Membership can be freely given to engineers and interested bona-fide groups. Maybe this will stop the continual flow of e-diarrhea. > > Dave. > > > > ** This email and attachments have been scanned for content and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 13:37:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l80G-0008WR-00; Wed, 13 Mar 2002 13:37:12 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7DF211112F1; Wed, 13 Mar 2002 14:04:11 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA08057 for linac-eng-list; Wed, 13 Mar 2002 06:56:16 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA08053 for ; Wed, 13 Mar 2002 06:56:15 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KFAZ83G9OU002GK2@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 13 Mar 2002 07:55:55 -0500 (EST) Date: Wed, 13 Mar 2002 07:51:44 -0500 From: "Peter E. Vitali" Subject: Re: closed access to list. To: Dave Pinchin Cc: linac-eng@plato.aristotle.net Message-id: <3C8F4B59.E6875F@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 13 Mar 2002 07:51:44 -0500 From: "Peter E. Vitali" Subject: Re: closed access to list. To: Dave Pinchin Cc: linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good Morning. Just wanted to add my voice to the list being closed. Most people on the list probably heard of it from some other engineer or physicist informing them of it. I for one do not have time to go searching the NET for these list servers. I was informed when the list was started by a notice on the MED PHYSICS list server. Before the spam, the list was relatively quiet. There were days when nothing was happening. Most of the problems that were reported were the kind where after trying to fix it for a while, and getting now where, the engineer or physicist came to the list to see if some one else had seen this problem. I also ran some test messages to make sure the list was still in operation. I am on a university and also on a hospital network. I do not relish "Lisa loving girls, or Lonely and Horny" adds on my email. Plus there seems to be a large amount of Financial Spam coming to me. Check with the MED PHYSICS list server owners and see how they are keeping spam off. I get a digest from them every day and do not see SPAM. Pete Vitali 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 18:31:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lCbX-00022U-00; Wed, 13 Mar 2002 18:31:59 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9AFAB1112F1; Wed, 13 Mar 2002 18:58:53 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA21127 for linac-eng-list; Wed, 13 Mar 2002 11:38:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailserver.xrt.upenn.edu (email.xrt.upenn.edu [165.123.248.180]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA21121 for ; Wed, 13 Mar 2002 11:38:40 -0600 (CST) Received: by email.xrt.upenn.edu with Internet Mail Service (5.5.2650.21) id ; Wed, 13 Mar 2002 12:47:10 -0500 Message-ID: From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100c for sale Date: Wed, 13 Mar 2002 12:47:09 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1CAB7.197C5890" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100c for sale Date: Wed, 13 Mar 2002 12:47:09 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1CAB7.197C5890" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1CAB7.197C5890 Content-Type: text/plain; charset="iso-8859-1" The Hospital of the University of Pennsylvania department of Radiation Oncology will be taking bids on a Varian 2100c. Interested parties need to keep in mind that the awarded party will be responsible for removal and shipment of equipment agreed on by the University of Pennsylvania and the awarded party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian. This machine is scheduled for removal towards the end of the year. This accelerator is used for daily clinical treatment and has been upgraded with many features. Installed in 1988 and fully operational since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories along with an ETR couch and independent jaws with enhanced dynamic wedge capability. This accelerator has been setup with the following energies 6x 15x 6e 9e 12e 16e 20e Interested parties with questions or would like to setup a time to see the equipment can contact: Rick Kreider Chief of Engineering Hospital of the University of Pennsylvania Department of Radiation Oncology Kreider@xrt.upenn.edu Tel: 215-662-6749 Fax: 215-662-6762 ------_=_NextPart_001_01C1CAB7.197C5890 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The University of Pennsylvania Hospital department of Radiation = Oncology will be taking bids on a Varian 2100c

    The Hospital of the University of Pennsylvania department of = Radiation Oncology will be taking bids on a Varian 2100c. Interested parties need = to keep in mind that the awarded party will be responsible for removal and = shipment of equipment agreed on by the University of Pennsylvania and the awarded = party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian. This machine is scheduled for removal towards the end of = the year.

     

    This accelerator is used for daily clinical treatment and has = been upgraded with many features. Installed in 1988 and fully operational = since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories = along with an ETR couch and independent jaws with enhanced dynamic wedge = capability.

     

    This accelerator has been setup with the following = energies

    6x  15x  6e  9e  = 12e  16e  20e

     

    Interested parties with questions or would like to setup a time = to see the equipment

    can contact:

     

    Rick Kreider

    Chief of Engineering

    Hospital of the University of Pennsylvania

    Department of Radiation Oncology

    Kreider@xrt.upenn.edu

    Tel: 215-662-6749

    Fax: 215-662-6762

      =

    ------_=_NextPart_001_01C1CAB7.197C5890-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 19:11:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lDEF-00026c-00; Wed, 13 Mar 2002 19:11:59 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0CEE61112F1; Wed, 13 Mar 2002 19:38:53 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA26461 for linac-eng-list; Wed, 13 Mar 2002 12:38:43 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA26457 for ; Wed, 13 Mar 2002 12:38:41 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Wed, 13 Mar 2002 13:38:10 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA7D@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Linac-eng@plato.aristotle.net'" Subject: Xim test tools, spam Date: Wed, 13 Mar 2002 13:38:09 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Linac-eng@plato.aristotle.net'" Subject: Xim test tools, spam Date: Wed, 13 Mar 2002 13:38:09 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk In reply to the post re Xim test (which I deleted with some spam), we use an aluminum step wedge for density contrast resolution, and a line pair test tool for spatial resolution tests. These are cheap. We use a diode kvp tester, and a simple exposure meter. Nuclear Associates, Victoreen, etc sell these. I go through a local dealer, Atlantic Nuclear. I have changed my mind from open list to closed because of the recent increase in Spam. I still find the posts and consequent threads very useful and interesting, in spite of the spam. Jerry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 20:54:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lEps-0002Br-00; Wed, 13 Mar 2002 20:54:56 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 629AC1112F1; Wed, 13 Mar 2002 21:21:44 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA05708 for linac-eng-list; Wed, 13 Mar 2002 14:15:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.lha.org ([170.122.200.53]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA05682 for ; Wed, 13 Mar 2002 14:15:46 -0600 (CST) Received: FROM exchange.lha.org BY exchange.lha.org ; Wed Mar 13 14:59:18 2002 -0500 Received: by exchange.lha.org with Internet Mail Service (5.5.2650.21) id ; Wed, 13 Mar 2002 10:11:15 -0500 Message-ID: <3D998785DA22D611B68D00A0C9CDB0C00123B265@mail.lha.org> From: "Bitler, Richard L" To: "'Rich Kimball'" , linac-eng@plato.aristotle.net Subject: RE: closed access to list. Date: Wed, 13 Mar 2002 10:11:13 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bitler, Richard L" To: "'Rich Kimball'" , linac-eng@plato.aristotle.net Subject: RE: closed access to list. Date: Wed, 13 Mar 2002 10:11:13 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I would like to see it closed so that only members can post. The porn advertisement spams could get my internet access at work revoked as content is monitored here. Rick Bitler Lancaster General Hospital -----Original Message----- From: Rich Kimball [SMTP:richardkimball3@attbi.com] Sent: Wednesday, March 13, 2002 07:49 To: linac-eng@plato.aristotle.net Subject: Re: closed access to list. Dave...I agree with you, but the recent poll that was taken indicated our peers wish the list kept open. All for one and one for all? Rich ----- Original Message ----- From: "Dave Pinchin" To: Sent: Tuesday, March 12, 2002 8:07 PM Subject: closed access to list. > G'day, > I don't want to revisit a previous issue but...... > > I've had it up to here with spam. > I have noticed that there are fewer genuine postings and suspect that we are losing valuable colleagues from the list. If we allow this trend to continue there will be no point in this list. > > Suggestion. Close access to the list. Only allow members to contribute. > Membership can be freely given to engineers and interested bona-fide groups. Maybe this will stop the continual flow of e-diarrhea. > > Dave. > > > > ** This email and attachments have been scanned for content and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 21:41:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lFZ3-0002EP-00; Wed, 13 Mar 2002 21:41:37 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F4691112F1; Wed, 13 Mar 2002 22:08:28 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA09201 for linac-eng-list; Wed, 13 Mar 2002 15:03:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f152.law8.hotmail.com [216.33.241.152]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA09194 for ; Wed, 13 Mar 2002 15:03:36 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 13 Mar 2002 13:03:00 -0800 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Wed, 13 Mar 2002 21:03:00 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: JMADDOX@LROC.HARVARD.EDU, Linac-eng@plato.aristotle.net Subject: Re: Xim test tools, spam Date: Wed, 13 Mar 2002 15:03:00 -0600 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 13 Mar 2002 21:03:00.0813 (UTC) FILETIME=[759B27D0:01C1CAD2] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: JMADDOX@LROC.HARVARD.EDU, Linac-eng@plato.aristotle.net Subject: Re: Xim test tools, spam Date: Wed, 13 Mar 2002 15:03:00 -0600 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 13 Mar 2002 21:03:00.0813 (UTC) FILETIME=[759B27D0:01C1CAD2] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Buford J Maddox, I will tell you of my story with my brief encounter with the Xim a one of my sites and you can see if it relates to your Xim. About two years ago we had a new Xim install by Varian, the image sucked, it passed all the LEADS tests, but it looked like a bad C-Arm image, ie lungs were bloomed out ect,the local service rep was the main one for three states, twenty plus years experience, and was the "Xim man", I have had 15 years experience with imaging and after seeing that it passed all the LEADS tests and him explaining to me the this is the way these units preformed I was disappointed with the Varian image, a few months went by and I complained again and it happened that a service rep from some other state was in the area, I think his name was John, stopped out and did some adjusting and this machine came to life, big improvement in image quality. After having this experience the image quality was very stable, and needed no touching up, the moral of the story when it comes to imaging it is not the QA equipment it is the service rep that knows the little adjustment that makes it just right. I also learned something else years ago, the LEEDS or any other Q.A device means nothing it is the Doctor that has the final say. >From: "Maddox, Buford J" >To: "'Linac-eng@plato.aristotle.net'" >Subject: Xim test tools, spam >Date: Wed, 13 Mar 2002 13:38:09 -0500 > >In reply to the post re Xim test (which I deleted with some spam), we use >an >aluminum step wedge for density contrast resolution, and a line pair test >tool for spatial resolution tests. These are cheap. We use a diode kvp >tester, and a simple exposure meter. Nuclear Associates, Victoreen, etc >sell these. I go through a local dealer, Atlantic Nuclear. > >I have changed my mind from open list to closed because of the recent >increase in Spam. > >I still find the posts and consequent threads very useful and interesting, >in spite of the spam. > >Jerry ROD WILLIAMS _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 22:11:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lG2B-0002G9-00; Wed, 13 Mar 2002 22:11:43 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B2C931112F1; Wed, 13 Mar 2002 22:38:33 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA13711 for linac-eng-list; Wed, 13 Mar 2002 15:45:12 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hscsmtp.hscs.virginia.edu (hscsmtp.hscs.Virginia.EDU [128.143.176.155]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA13705 for ; Wed, 13 Mar 2002 15:45:09 -0600 (CST) Received: from hscemail4.hscs.virginia.edu ([128.143.111.73]) by hscsmtp.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4453); Wed, 13 Mar 2002 16:45:08 -0500 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C1CAD8.57A25A02" Disposition-Notification-To: "Orsolini, Joe D" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: Beamstopper Date: Wed, 13 Mar 2002 16:45:07 -0500 Message-ID: X-MS-Has-Attach: yes Thread-Topic: Beamstopper Thread-Index: AcHK1rhToaDF3zZbEdaGZwAQWl9Aqw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail 2)" X-OriginalArrivalTime: 13 Mar 2002 21:45:08.0068 (UTC) FILETIME=[57F7AA40:01C1CAD8] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C1CAD8.57A25A02" Disposition-Notification-To: "Orsolini, Joe D" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: Beamstopper Date: Wed, 13 Mar 2002 16:45:07 -0500 X-MS-Has-Attach: yes Thread-Topic: Beamstopper Thread-Index: AcHK1rhToaDF3zZbEdaGZwAQWl9Aqw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail 2)" X-OriginalArrivalTime: 13 Mar 2002 21:45:08.0068 (UTC) FILETIME=[57F7AA40:01C1CAD8] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C1CAD8.57A25A02 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Greetings, we have a 2300 CD with a beamstopper, (stop laughing!!) and we have worn = out the harmonic drive unit, from the print their appears to be oilers = that provide lubrication to the sliding surfaces. anyone familliar with = them and how they are accessed? Giuseppe 'Joe' Orsolini RT =20 Imaging Physics Specialist =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) <>=20 ------_=_NextPart_001_01C1CAD8.57A25A02 Content-Type: text/x-vcard; name="Giuseppe Orsolini RT (E-mail).vcf" Content-Transfer-Encoding: base64 Content-Description: Giuseppe Orsolini RT (E-mail).vcf Content-Disposition: attachment; filename="Giuseppe Orsolini RT (E-mail).vcf" QkVHSU46VkNBUkQNClZFUlNJT046Mi4xDQpOOk9yc29saW5pIFJUO0dpdXNlcHBlDQpGTjpHaXVz ZXBwZSBPcnNvbGluaSBSVCAoRS1tYWlsKQ0KT1JHOlVuaXZlcnNpdHkgb2YgVmlyZ2luaWEgDQpU SVRMRTpJbWFnaW5nIFBoeXNpY3MgU3BlY2lhbGlzdA0KVEVMO1dPUks7Vk9JQ0U6KDQzNCkgOTI0 LTk0MjINClRFTDtQQUdFUjtWT0lDRTooNDM0KSA5NjMtMjIyMA0KVEVMO1dPUks7RkFYOig0MzQp IDk4Mi0zNTIwDQpBRFI7V09SSztFTkNPRElORz1RVU9URUQtUFJJTlRBQkxFOjs7UmFkaW9sb2dp Y2FsIFBoeXNpY3MgRGl2aXNpb249MEQ9MEFCb3ggODAwMzc1O0NoYXJsb3R0ZXN2aWxsZTtWaXJn aW5pYTsyMjk9DQowOC0wMzc1DQpMQUJFTDtXT1JLO0VOQ09ESU5HPVFVT1RFRC1QUklOVEFCTEU6 UmFkaW9sb2dpY2FsIFBoeXNpY3MgRGl2aXNpb249MEQ9MEFCb3ggODAwMzc1PTBEPTBBQ2hhcmxv dHRlc3ZpbGxlLCBWaXJnaW5pYT0NCiAyMjkwOC0wMzc1DQpFTUFJTDtQUkVGO0lOVEVSTkVUOm9y c29saW5pQHZpcmdpbmlhLmVkdQ0KUkVWOjIwMDIwMTA5VDE2MDk0MFoNCkVORDpWQ0FSRA0K ------_=_NextPart_001_01C1CAD8.57A25A02-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 00:46:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lIRl-0002NP-00; Thu, 14 Mar 2002 00:46:17 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3C6501112F1; Thu, 14 Mar 2002 01:13:00 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA27063 for linac-eng-list; Wed, 13 Mar 2002 18:12:09 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA27057 for ; Wed, 13 Mar 2002 18:12:06 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id NAA05511 for ; Thu, 14 Mar 2002 13:01:31 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Thu, 14 Mar 2002 13:11:33 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Thu, 14 Mar 2002 13:11:30 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 14 Mar 2002 13:11:22 +1300 From: "Dave Pinchin" To: Subject: Is the list already closed ?????? Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA27059 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 14 Mar 2002 13:11:22 +1300 From: "Dave Pinchin" To: Subject: Is the list already closed ?????? Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA27059 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I just received this one...... Hey Dave, I have tried to send a message to the list 3x it never came through, what do you think? Joe Schebler -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Tuesday, March 12, 2002 8:08 PM To: linac-eng@plato.aristotle.net Subject: closed access to list. G'day, I don't want to revisit a previous issue but...... I've had it up to here with spam. I have noticed that there are fewer genuine postings and suspect that we are losing valuable colleagues from the list. If we allow this trend to continue there will be no point in this list. Suggestion. Close access to the list. Only allow members to contribute. Membership can be freely given to engineers and interested bona-fide groups. Maybe this will stop the continual flow of e-diarrhea. Dave. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 02:20:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lJvA-0002Qh-00; Thu, 14 Mar 2002 02:20:44 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 97C9D1112F1; Thu, 14 Mar 2002 02:47:29 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id TAA04098 for linac-eng-list; Wed, 13 Mar 2002 19:48:10 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id TAA04094 for ; Wed, 13 Mar 2002 19:48:08 -0600 (CST) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Wed, 13 Mar 2002 18:47:37 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Wed, 13 Mar 2002 18:47:36 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D0752360711@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: SPAM Date: Wed, 13 Mar 2002 18:47:31 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: SPAM Date: Wed, 13 Mar 2002 18:47:31 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All, The list can remain open or closed. Either way I will still use it for the valuable resource it is to me. SPAM takes less than a second to delete and I've never been mislead by the subject line. I read an article on the internet the other day that indicated within four years the average home computer user will receive up to 1400 SPAM emails per DAY! I just switched to DSL at home with a new email address and the SPAM is already starting to show up. One or two on the list seems trivial and yes I suppose the list could start seeing increasing amounts of SPAM also. I will just have to hit delete more often. If I ever do need a teen slut, a larger appendage, a new mortgage, debt consolodation or viagra I will just turn on my home computer. It won't keep me from using the internet and it won't keep me from using this list. Just my 2 cents worth. Dan Watters University Medical Center Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 09:55:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lR0v-0004ZN-00; Thu, 14 Mar 2002 09:55:09 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7FBF41112F1; Thu, 14 Mar 2002 10:21:46 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA20278 for linac-eng-list; Thu, 14 Mar 2002 03:24:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA20274 for ; Thu, 14 Mar 2002 03:24:50 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16lRT9-0007YA-00; Thu, 14 Mar 2002 09:24:19 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3C811D7E00102AB4 for linac-eng@plato.aristotle.net; Thu, 14 Mar 2002 09:24:19 +0000 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C8D4B880003E214 for linac-eng@plato.aristotle.net; Thu, 14 Mar 2002 09:24:19 +0000 X-Internal-ID: 3C8F02E100007DF3 Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 14 Mar 2002 09:20:31 +0000 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 09:24:45 -0000 Message-ID: <4BD1673C955CD41182DA00508BACF2DF01391CA0@YGC-MAIL> From: "Carfoot, Sidney" To: "'linac-eng@plato.aristotle.net'" Subject: Carrousel - 2100C - 1415 - 5.4 Date: Thu, 14 Mar 2002 09:24:44 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3C8F02E100007DF3 From: "Carfoot, Sidney" To: "'linac-eng@plato.aristotle.net'" Subject: Carrousel - 2100C - 1415 - 5.4 Date: Thu, 14 Mar 2002 09:24:44 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi I have an intermittent problem which is obviously a pain to troubleshoot. Symptom: Select energy say MV (used a lot but does happen on other energies) the carrousel seems to move to the correct port but then moves on, slowly, 1 port at a time and will eventually arrive back at MV port which it then presumes is OK. This happens 2 -3 times a day. We have had error codes 93 and 98. Have checked voltages on the POT and checked for intermittent wiring. The voltage was monitored and remains within a few millivolts at each port. I presume that this voltage is not critical and doesn't need to be exactly 5v since once it has calibrated, it doesn't care and looks for that calibration voltage. Checked out switches, again seem to be OK. Even repositioned. Would have changed one or two but it's not one of those useful items you find in the spares kit! Also checked pin and switch settings- fine! I wouldn't think the a/d is intermittent but you might know better! Going to order up some switches today but any ideas would be appreciated. I read all postings except any I feel are spam I delete. There are not all that many! and it only takes seconds to get rid of them. Lets not pushed out by a minority that misuse the list. The information that everyone submits is of value to us and I certainly take note of that information. Thanks to everyone that helps in that goal. Sid 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 11:59:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lSxZ-0005kI-00; Thu, 14 Mar 2002 11:59:50 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 022121112F1; Thu, 14 Mar 2002 12:26:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA21828 for linac-eng-list; Thu, 14 Mar 2002 05:27:43 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id FAA21824 for ; Thu, 14 Mar 2002 05:27:41 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Thu, 14 Mar 2002 07:25:57 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 14 Mar 2002 07:25:51 -0400 From: "Scott Purcell" To: , Subject: Re: Carrousel - 2100C - 1415 - 5.4 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA21825 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 14 Mar 2002 07:25:51 -0400 From: "Scott Purcell" To: , Subject: Re: Carrousel - 2100C - 1415 - 5.4 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA21825 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Sidney We had these error codes before and what we found was that the FPGA chip on the carrousel PCB was loose in it's socket. Just something to try. Scott Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada Email scott.purcell@chda.nshealth.ca Phone: 902-473-2563 Fax: 902-473-6120 >>> "Carfoot, Sidney" 03/14/02 05:24AM >>> Hi I have an intermittent problem which is obviously a pain to troubleshoot. Symptom: Select energy say MV (used a lot but does happen on other energies) the carrousel seems to move to the correct port but then moves on, slowly, 1 port at a time and will eventually arrive back at MV port which it then presumes is OK. This happens 2 -3 times a day. We have had error codes 93 and 98. Have checked voltages on the POT and checked for intermittent wiring. The voltage was monitored and remains within a few millivolts at each port. I presume that this voltage is not critical and doesn't need to be exactly 5v since once it has calibrated, it doesn't care and looks for that calibration voltage. Checked out switches, again seem to be OK. Even repositioned. Would have changed one or two but it's not one of those useful items you find in the spares kit! Also checked pin and switch settings- fine! I wouldn't think the a/d is intermittent but you might know better! Going to order up some switches today but any ideas would be appreciated. I read all postings except any I feel are spam I delete. There are not all that many! and it only takes seconds to get rid of them. Lets not pushed out by a minority that misuse the list. The information that everyone submits is of value to us and I certainly take note of that information. Thanks to everyone that helps in that goal. Sid 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 13:21:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lUEZ-0006pH-00; Thu, 14 Mar 2002 13:21:27 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4425A1112F1; Thu, 14 Mar 2002 13:48:01 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA23646 for linac-eng-list; Thu, 14 Mar 2002 06:48:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.radonc.musc.edu (xchange.RadOnc.MUSC.EDU [128.23.55.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA23642 for ; Thu, 14 Mar 2002 06:48:53 -0600 (CST) Received: by xchange.RadOnc.MUSC.EDU with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 07:48:20 -0500 Message-ID: <0758E63D5DEC3B458FF43D068F1CC73601592A@xchange.RadOnc.MUSC.EDU> From: "Fort, Don" To: "LINAC ENGINEERS E-MAIL LIST (E-mail)" Subject: FW: closed access to list. Date: Thu, 14 Mar 2002 07:48:19 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Fort, Don" To: "LINAC ENGINEERS E-MAIL LIST (E-mail)" Subject: FW: closed access to list. Date: Thu, 14 Mar 2002 07:48:19 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Another try to get this out to the list... -----Original Message----- From: Fort, Don Sent: Wednesday, March 13, 2002 7:42 AM To: 'Dave Pinchin' Subject: RE: closed access to list. Welllll.... the block room list is a closed list and we've little spam and only one infected e-mail that I can recall over the last two or three years... If a plenary member of this list, I'd vote to make it closed list. -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Tuesday, March 12, 2002 9:08 PM To: linac-eng@plato.aristotle.net Subject: closed access to list. G'day, I don't want to revisit a previous issue but...... I've had it up to here with spam. I have noticed that there are fewer genuine postings and suspect that we are losing valuable colleagues from the list. If we allow this trend to continue there will be no point in this list. Suggestion. Close access to the list. Only allow members to contribute. Membership can be freely given to engineers and interested bona-fide groups. Maybe this will stop the continual flow of e-diarrhea. Dave. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 13:36:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lUSs-0006y0-00; Thu, 14 Mar 2002 13:36:14 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 47EE01112F1; Thu, 14 Mar 2002 14:02:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA24746 for linac-eng-list; Thu, 14 Mar 2002 07:06:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA24742 for ; Thu, 14 Mar 2002 07:06:57 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KFCDWHQ8AK002BAM@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Thu, 14 Mar 2002 08:07:15 -0500 (EST) Date: Thu, 14 Mar 2002 08:03:00 -0500 From: "Peter E. Vitali" Subject: Re: Is the list already closed ?????? To: Dave Pinchin Cc: linac-eng@plato.aristotle.net Message-id: <3C909F81.3ABB7F57@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 14 Mar 2002 08:03:00 -0500 From: "Peter E. Vitali" Subject: Re: Is the list already closed ?????? To: Dave Pinchin Cc: linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave: I received your email and it was only addressed to the linac-eng list server. Seems like some message are going through and others are not. I replied to Marc Facinelli's request for info on testing the Ximatron, but I did not see a copy come back to me. I have received other messages from the list. Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 13:51:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lUhj-0007A4-00; Thu, 14 Mar 2002 13:51:35 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0F6A91112F1; Thu, 14 Mar 2002 14:18:09 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA25241 for linac-eng-list; Thu, 14 Mar 2002 07:22:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc53.attbi.com (rwcrmhc53.attbi.com [204.127.198.39]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA25237 for ; Thu, 14 Mar 2002 07:22:30 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc53.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020314132159.CUFQ2951.rwcrmhc53.attbi.com@c1784162a>; Thu, 14 Mar 2002 13:21:59 +0000 Message-ID: <003301c1cb5b$5712d900$99ddf70c@mshome.net> From: "Rich Kimball" To: "Orsolini, Joe D" , "Linac-Eng (E-mail 2)" References: Subject: Re: Varian 2300C/D Beamstopper Date: Thu, 14 Mar 2002 07:22:47 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Orsolini, Joe D" , "Linac-Eng (E-mail 2)" Subject: Re: Varian 2300C/D Beamstopper Date: Thu, 14 Mar 2002 07:22:47 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Joe, Anyone with a beamstopper I do not laugh at....but weep with you! If your harmonic drive is slipping it could be evidence of excessive drag. The pads that provide lubrication are supposed to be serviced routinely, but rarely get attention. The zerk fittings you will find at several points are, if I remember correctly, be serviced with a mixture of STP and 30W motor oil forced into them. I would try this first working the stopper back and forth and maybe smearing some of the lube on the rails as a pre condition. If the pads haven't been serviced in a 'long time', you may find that they don't want to take the lube. Keep pushin' on though and try to get some in there. If they are worn out and the rails are in bad shape (not absolutely smooth) you have better days behind you. The job of the pads is wick the oil onto the rails. Replacing all of this is somewhat involved. Happy trails, Rich Kimball Acceletronics Midwest, Inc. Greetings, we have a 2300 CD with a beamstopper, (stop laughing!!) and we have worn out the harmonic drive unit, from the print their appears to be oilers that provide lubrication to the sliding surfaces. anyone familliar with them and how they are accessed? Giuseppe 'Joe' Orsolini RT Imaging Physics Specialist University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) <> 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 14:46:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lVYX-0007bY-00; Thu, 14 Mar 2002 14:46:09 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6024A1112F1; Thu, 14 Mar 2002 15:12:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA28797 for linac-eng-list; Thu, 14 Mar 2002 08:12:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imf00bis.bellsouth.net (mail000.mail.bellsouth.net [205.152.58.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA28793 for ; Thu, 14 Mar 2002 08:12:40 -0600 (CST) Received: from bellsouth.net ([216.77.62.13]) by imf00bis.bellsouth.net (InterMail vM.5.01.04.05 201-253-122-122-105-20011231) with ESMTP id <20020314141330.WZQL26489.imf00bis.bellsouth.net@bellsouth.net>; Thu, 14 Mar 2002 09:13:30 -0500 Message-ID: <3C90B0B2.3F33EBA0@bellsouth.net> Date: Thu, 14 Mar 2002 08:16:18 -0600 From: Gil Head X-Mailer: Mozilla 4.77 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: "Carfoot, Sidney" Cc: "'linac-eng@plato.aristotle.net'" Subject: Re: Carrousel - 2100C - 1415 - 5.4 References: <4BD1673C955CD41182DA00508BACF2DF01391CA0@YGC-MAIL> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 14 Mar 2002 08:16:18 -0600 From: Gil Head X-Accept-Language: en To: "Carfoot, Sidney" Cc: "'linac-eng@plato.aristotle.net'" Subject: Re: Carrousel - 2100C - 1415 - 5.4 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We are also experiencing intermittent Carr/Foil faults (CL2100CD, 1405). We measured the input voltage at the Carrousel Interface PCB, it was 5.04 when calibrated, 4.88 with the fault. A few milli-volts may matter. We had already Easter egged both Carrousel PCB's in the Aux Electronics and after seeing the voltage change I had Varian change the Carr pot. Problem has gone from many times a day to an occasional fault. "Carfoot, Sidney" wrote: > > Hi > > I have an intermittent problem which is obviously a pain to troubleshoot. > > Symptom: Select energy say MV (used a lot but does happen on other energies) > the carrousel seems to move to the correct port but then moves on, slowly, 1 > port at a time and will eventually arrive back at MV port which it then > presumes is OK. > > This happens 2 -3 times a day. > > We have had error codes 93 and 98. > > Have checked voltages on the POT and checked for intermittent wiring. The > voltage was monitored and remains within a few millivolts at each port. I > presume that this voltage is not critical and doesn't need to be exactly 5v > since once it has calibrated, it doesn't care and looks for that calibration > voltage. > Checked out switches, again seem to be OK. Even repositioned. Would have > changed one or two but it's not one of those useful items you find in the > spares kit! > > Also checked pin and switch settings- fine! > > I wouldn't think the a/d is intermittent but you might know better! > > Going to order up some switches today but any ideas would be appreciated. > > I read all postings except any I feel are spam I delete. There are not all > that many! and it only takes seconds to get rid of them. > Lets not pushed out by a minority that misuse the list. The information that > everyone submits is of value to us and I certainly take note of that > information. > Thanks to everyone that helps in that goal. > > Sid -- "Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself." Mark Twain 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 15:21:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lW73-0008E2-00; Thu, 14 Mar 2002 15:21:49 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 120741112F2; Thu, 14 Mar 2002 15:48:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA00694 for linac-eng-list; Thu, 14 Mar 2002 08:45:18 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from UIHC-MXII.UIHC.UIOWA.EDU (uihc-mxii.uihc.uiowa.edu [129.255.210.177]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA00690 for ; Thu, 14 Mar 2002 08:45:17 -0600 (CST) Received: from uihc-mail.uihc.uiowa.edu (uihc-mail.uihc.uiowa.edu [129.255.242.85]) by UIHC-MXII.UIHC.UIOWA.EDU (8.11.2/8.11.2) with ESMTP id g2EEcR131885 for ; Thu, 14 Mar 2002 08:38:27 -0600 Received: by uihc-mail.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 08:45:02 -0600 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24015F7724@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Beamstopper Date: Thu, 14 Mar 2002 08:45:02 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Beamstopper Date: Thu, 14 Mar 2002 08:45:02 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I agree with Rich K, the lubricant mixture we have been using is two pars STP oil Xment and one part Mobile 1 oil as for the zerks there is ether 4 or eight of them, i dont remember, we have had them leak in the past, so instead of filling em through the top we remove them with a socket, fill em and then reinstall them, and yes clean the rail surfaces good and then rub a light film of the lube on the surfaces. Joe Scgebler 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 15:21:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lW74-0008E5-00; Thu, 14 Mar 2002 15:21:50 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1C30A1112FA; Thu, 14 Mar 2002 15:48:20 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA01087 for linac-eng-list; Thu, 14 Mar 2002 08:49:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from UIHC-MXII.UIHC.UIOWA.EDU (uihc-mxii.uihc.uiowa.edu [129.255.210.177]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA01083 for ; Thu, 14 Mar 2002 08:49:58 -0600 (CST) Received: from uihc-bh.uihc.uiowa.edu (uihc-web.uihc.uiowa.edu [129.255.210.35]) by UIHC-MXII.UIHC.UIOWA.EDU (8.11.2/8.11.2) with ESMTP id g2EEh8132099 for ; Thu, 14 Mar 2002 08:43:08 -0600 Received: by uihc-bh.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 08:49:43 -0600 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24015F7725@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Mobile 1 was 15W-50 weight Date: Thu, 14 Mar 2002 08:48:59 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Mobile 1 was 15W-50 weight Date: Thu, 14 Mar 2002 08:48:59 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 15:24:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lW9p-0008Er-00; Thu, 14 Mar 2002 15:24:41 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 20F841112F2; Thu, 14 Mar 2002 15:51:08 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA00835 for linac-eng-list; Thu, 14 Mar 2002 08:47:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA00831 for ; Thu, 14 Mar 2002 08:47:33 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Thu, 14 Mar 2002 08:50:40 -0600 Received: by corpexcon01.corp.medcity.net with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 08:49:20 -0600 Message-ID: <87DA8A9ECCCFD211B51E0008C7B1558510B2B199@ftwex03.ftw.medcity.net> From: Barrett Marc To: "'Linac Engineer's Group'" Subject: Spam II: "Wait a Spam Minute"! Date: Thu, 14 Mar 2002 08:38:10 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Barrett Marc To: "'Linac Engineer's Group'" Subject: Spam II: "Wait a Spam Minute"! Date: Thu, 14 Mar 2002 08:38:10 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Couldn't what we are doing here, sending non informative, meaningless, "read me, read me" e-mails about spam in and of itself be considered spam??? (with a side of .... {enter, stage left, Vikings singing..."spam, spam, spam, spam..."}). Marc R. Barrett Radiation Physicist, Director, RSO Rapides Cancer Center marc.barrett@hcahealthcare.com (318) 449-7200 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 16:06:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lWo6-00005D-00; Thu, 14 Mar 2002 16:06:18 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DFFD31112F7; Thu, 14 Mar 2002 16:32:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA04459 for linac-eng-list; Thu, 14 Mar 2002 09:23:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from UIHC-MXII.UIHC.UIOWA.EDU (uihc-mxii.uihc.uiowa.edu [129.255.210.177]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA04454 for ; Thu, 14 Mar 2002 09:23:38 -0600 (CST) Received: from uihc-bh.uihc.uiowa.edu (uihc-web.uihc.uiowa.edu [129.255.210.35]) by UIHC-MXII.UIHC.UIOWA.EDU (8.11.2/8.11.2) with ESMTP id g2EFGm101381 for ; Thu, 14 Mar 2002 09:16:48 -0600 Received: by uihc-bh.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 09:23:23 -0600 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24015F7726@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Posting vs Spam Date: Thu, 14 Mar 2002 09:22:36 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Posting vs Spam Date: Thu, 14 Mar 2002 09:22:36 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hey everyone, I can live with a little spam, no big deal, however, what does frustrate me is that over 75% of what I try to post doesnt get posted. Example, just over 1/2 hr ago, I replied twice reguarding beamstoppers, have seen em post yet, how long does this take? Needing some answers in Iowa, USA Thanks Joe 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 17:42:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lYIr-0000ms-00; Thu, 14 Mar 2002 17:42:09 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8C7E41112F2; Thu, 14 Mar 2002 18:08:38 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA09708 for linac-eng-list; Thu, 14 Mar 2002 11:00:10 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.mail.iol.ie (mail2.mail.iol.ie [194.125.2.193]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09673 for ; Thu, 14 Mar 2002 11:00:08 -0600 (CST) Received: from [193.203.141.188] (helo=AndrewCompaq) by mail2.mail.iol.ie with esmtp (Exim 3.35 #1) id 16lYa1-0008Nq-00 for linac-eng@plato.aristotle.net; Thu, 14 Mar 2002 16:59:54 +0000 Reply-To: From: "Andrew Cramond" To: "'Linac-Eng'" Subject: Service Engineer Position Available Date: Thu, 14 Mar 2002 16:51:42 -0000 Organization: DSL / GE Clinical Services Message-ID: <000001c1cb78$864e7f90$e94d4db1@AndrewCompaq> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.3416 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Andrew Cramond" To: "'Linac-Eng'" Subject: Service Engineer Position Available Date: Thu, 14 Mar 2002 16:51:42 -0000 Organization: DSL / GE Clinical Services Content-Type: text/plain; charset="us-ascii" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Diagnostic Systems Ltd., a long established Irish company, acting as agents for GE Medical Systems and Varian Medical Systems have an immediate vacancy for an enthusiastic, self motivated Electronics Service Engineer in the Dublin area. The work involves servicing and fault repair of Varian 2100CD Linear Accelerator and Ximatron Simulator, GE PETtrace Cyclotron and, a GE/Varian S41-800 Linear Accelerators located at various hospitals in Ireland. The ideal candidate will have a Third Level Qualification in Electronics or Computer Science and highly developed skills with mechanical and electro-mechanical systems. Previous experience in medical electronics or radar systems would be highly regarded. The company offers a competitive salary, company car and formal training. Interested applicants should forward a current C.V. to: Mr. A. Cramond Diagnostic Systems Ltd. Unit F4 Centre Point Business Park Oak Road Dublin 12 Ireland e-mail: andrewcramond@iol.ie 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 19:12:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lZiU-0000wL-00; Thu, 14 Mar 2002 19:12:42 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 27E871112F1; Thu, 14 Mar 2002 19:39:10 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA14645 for linac-eng-list; Thu, 14 Mar 2002 12:30:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA14641 for ; Thu, 14 Mar 2002 12:30:40 -0600 (CST) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Thu, 14 Mar 2002 13:30:09 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA81@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Gil Head'" , "Carfoot, Sidney" Cc: "'linac-eng@plato.aristotle.net'" Subject: RE: Carrousel - 2100C - 1415 - 5.4 Date: Thu, 14 Mar 2002 13:30:09 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Gil Head'" , "Carfoot, Sidney" Cc: "'linac-eng@plato.aristotle.net'" Subject: RE: Carrousel - 2100C - 1415 - 5.4 Date: Thu, 14 Mar 2002 13:30:09 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This post jogged my memory, years ago I experienced a precision 10v reference IC that had two stable states, causing this kind of jump on either a readout or carrousel pot, don't remember which. Fortunately in that case it happened when it was turned on, choosing one or the other voltage, and stayed that way. > -----Original Message----- > From: Gil Head [SMTP:gilf@bellsouth.net] > Sent: Thursday, March 14, 2002 9:16 AM > To: Carfoot, Sidney > Cc: 'linac-eng@plato.aristotle.net' > Subject: Re: Carrousel - 2100C - 1415 - 5.4 > > We are also experiencing intermittent Carr/Foil faults (CL2100CD, 1405). > We measured the input voltage at the Carrousel Interface PCB, it was > 5.04 when calibrated, 4.88 with the fault. A few milli-volts may > matter. We had already Easter egged both Carrousel PCB's in the Aux > Electronics and after seeing the voltage change I had Varian change the > Carr pot. Problem has gone from many times a day to an occasional > fault. > > > > "Carfoot, Sidney" wrote: > > > > Hi > > > > I have an intermittent problem which is obviously a pain to > troubleshoot. > > > > Symptom: Select energy say MV (used a lot but does happen on other > energies) > > the carrousel seems to move to the correct port but then moves on, > slowly, 1 > > port at a time and will eventually arrive back at MV port which it then > > presumes is OK. > > > > This happens 2 -3 times a day. > > > > We have had error codes 93 and 98. > > > > Have checked voltages on the POT and checked for intermittent wiring. > The > > voltage was monitored and remains within a few millivolts at each port. > I > > presume that this voltage is not critical and doesn't need to be exactly > 5v > > since once it has calibrated, it doesn't care and looks for that > calibration > > voltage. > > Checked out switches, again seem to be OK. Even repositioned. Would have > > changed one or two but it's not one of those useful items you find in > the > > spares kit! > > > > Also checked pin and switch settings- fine! > > > > I wouldn't think the a/d is intermittent but you might know better! > > > > Going to order up some switches today but any ideas would be > appreciated. > > > > I read all postings except any I feel are spam I delete. There are not > all > > that many! and it only takes seconds to get rid of them. > > Lets not pushed out by a minority that misuse the list. The information > that > > everyone submits is of value to us and I certainly take note of that > > information. > > Thanks to everyone that helps in that goal. > > > > Sid > > -- > "Suppose you were an idiot. And suppose you were a member of Congress. > But I repeat myself." Mark Twain 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 19:13:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lZjG-0000wT-00; Thu, 14 Mar 2002 19:13:30 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ECB6F1112F1; Thu, 14 Mar 2002 19:39:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA15016 for linac-eng-list; Thu, 14 Mar 2002 12:37:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (oe43.law8.hotmail.com [216.33.240.15]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA15012 for ; Thu, 14 Mar 2002 12:37:23 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 14 Mar 2002 10:36:51 -0800 X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Carfoot, Sidney" Cc: "Clinac-summision" References: <4BD1673C955CD41182DA00508BACF2DF01391CA0@YGC-MAIL> Subject: Re: Carrousel - 2100C - 1415 - 5.4 Date: Thu, 14 Mar 2002 13:32:23 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-ID: X-OriginalArrivalTime: 14 Mar 2002 18:36:51.0637 (UTC) FILETIME=[352ED650:01C1CB87] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Carfoot, Sidney" Cc: "Clinac-summision" Subject: Re: Carrousel - 2100C - 1415 - 5.4 Date: Thu, 14 Mar 2002 13:32:23 -0500 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-OriginalArrivalTime: 14 Mar 2002 18:36:51.0637 (UTC) FILETIME=[352ED650:01C1CB87] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Sidney I had this problem in the past and I went trough the whole system nothing changed, few weeks went by and the intermittent problem was still there I decided to change the wind-up cable and that fix the problem, some time wires brake inside the jacket and there is no way to tell Hope this help Jose Villegas BHS Miami, FL ----- Original Message ----- From: "Carfoot, Sidney" To: Sent: Thursday, March 14, 2002 4:24 AM Subject: Carrousel - 2100C - 1415 - 5.4 > Hi > > I have an intermittent problem which is obviously a pain to troubleshoot. > > Symptom: Select energy say MV (used a lot but does happen on other energies) > the carrousel seems to move to the correct port but then moves on, slowly, 1 > port at a time and will eventually arrive back at MV port which it then > presumes is OK. > > This happens 2 -3 times a day. > > We have had error codes 93 and 98. > > Have checked voltages on the POT and checked for intermittent wiring. The > voltage was monitored and remains within a few millivolts at each port. I > presume that this voltage is not critical and doesn't need to be exactly 5v > since once it has calibrated, it doesn't care and looks for that calibration > voltage. > Checked out switches, again seem to be OK. Even repositioned. Would have > changed one or two but it's not one of those useful items you find in the > spares kit! > > Also checked pin and switch settings- fine! > > I wouldn't think the a/d is intermittent but you might know better! > > Going to order up some switches today but any ideas would be appreciated. > > I read all postings except any I feel are spam I delete. There are not all > that many! and it only takes seconds to get rid of them. > Lets not pushed out by a minority that misuse the list. The information that > everyone submits is of value to us and I certainly take note of that > information. > Thanks to everyone that helps in that goal. > > Sid > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 19:54:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16laNB-00010b-00; Thu, 14 Mar 2002 19:54:45 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 628D81112F1; Thu, 14 Mar 2002 20:21:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA17639 for linac-eng-list; Thu, 14 Mar 2002 13:17:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA17633 for ; Thu, 14 Mar 2002 13:17:31 -0600 (CST) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA25035 for ; Fri, 15 Mar 2002 08:06:53 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.1.5) with SMTP id for ; Fri, 15 Mar 2002 08:16:58 +1300 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 15 Mar 2002 08:16:55 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 15 Mar 2002 08:16:48 +1300 From: "Dave Pinchin" To: , Subject: Re: Carrousel - 2100C - 1415 - 5.4 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA17636 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Mar 2002 08:16:48 +1300 From: "Dave Pinchin" To: , Subject: Re: Carrousel - 2100C - 1415 - 5.4 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA17636 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day Sidney, It sounds like the carr. controller is doing a reset cycle. I have no idea why it should lose it's brain and forget where it is. It may be worth looking at the power supply / regulators / power filtering etc at the controller. Good hunting :D >>> "Carfoot, Sidney" 14/03/02 22:24:44 >>> Hi I have an intermittent problem which is obviously a pain to troubleshoot. Symptom: Select energy say MV (used a lot but does happen on other energies) the carrousel seems to move to the correct port but then moves on, slowly, 1 port at a time and will eventually arrive back at MV port which it then presumes is OK. This happens 2 -3 times a day. We have had error codes 93 and 98. Have checked voltages on the POT and checked for intermittent wiring. The voltage was monitored and remains within a few millivolts at each port. I presume that this voltage is not critical and doesn't need to be exactly 5v since once it has calibrated, it doesn't care and looks for that calibration voltage. Checked out switches, again seem to be OK. Even repositioned. Would have changed one or two but it's not one of those useful items you find in the spares kit! Also checked pin and switch settings- fine! I wouldn't think the a/d is intermittent but you might know better! Going to order up some switches today but any ideas would be appreciated. I read all postings except any I feel are spam I delete. There are not all that many! and it only takes seconds to get rid of them. Lets not pushed out by a minority that misuse the list. The information that everyone submits is of value to us and I certainly take note of that information. Thanks to everyone that helps in that goal. Sid ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 20:34:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lazn-000158-00; Thu, 14 Mar 2002 20:34:39 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C89BF1112F2; Thu, 14 Mar 2002 21:01:04 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA21008 for linac-eng-list; Thu, 14 Mar 2002 13:51:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.radonc.musc.edu (xchange.RadOnc.MUSC.EDU [128.23.55.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA21004 for ; Thu, 14 Mar 2002 13:51:02 -0600 (CST) Received: by xchange.RadOnc.MUSC.EDU with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 14:50:30 -0500 Message-ID: <0758E63D5DEC3B458FF43D068F1CC73601592D@xchange.RadOnc.MUSC.EDU> From: "Fort, Don" To: "'Dave Pinchin'" Cc: "LINAC ENGINEERS E-MAIL LIST (E-mail)" Subject: RE: FW: closed access to list. Date: Thu, 14 Mar 2002 14:50:28 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Fort, Don" To: "'Dave Pinchin'" Cc: "LINAC ENGINEERS E-MAIL LIST (E-mail)" Subject: RE: FW: closed access to list. Date: Thu, 14 Mar 2002 14:50:28 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I don't think that the server is sending once it reaches a threshold and wiating until then as I've noticed with a few posts that I recently sent, that appeared almost immediately. For now, wiht respect to SPAM, I'm adding the senders name to my contacts list with a prefix (like 01) and about once per day adding them to a rule that permanently deletes them on reciept, so that only the "new" crap shows up. Danged shame that we can't locate the source and engage in counterbattery fire, e.g. just plain re-sending to the inbox of the spammer all the other spam that comes in. -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Thursday, March 14, 2002 2:25 PM To: fort@radonc.musc.edu Subject: Re: FW: closed access to list. G'day Don, I received a copy of this post a couple of days back. I wonder if the server sometimes doesn't SEND the posts to the entire list intermittently. Could you pls. reply to me with your views. Thanks. Dave. >>> "Fort, Don" 15/03/02 01:48:19 >>> Another try to get this out to the list... -----Original Message----- From: Fort, Don Sent: Wednesday, March 13, 2002 7:42 AM To: 'Dave Pinchin' Subject: RE: closed access to list. Welllll.... the block room list is a closed list and we've little spam and only one infected e-mail that I can recall over the last two or three years... If a plenary member of this list, I'd vote to make it closed list. -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Tuesday, March 12, 2002 9:08 PM To: linac-eng@plato.aristotle.net Subject: closed access to list. G'day, I don't want to revisit a previous issue but...... I've had it up to here with spam. I have noticed that there are fewer genuine postings and suspect that we are losing valuable colleagues from the list. If we allow this trend to continue there will be no point in this list. Suggestion. Close access to the list. Only allow members to contribute. Membership can be freely given to engineers and interested bona-fide groups. Maybe this will stop the continual flow of e-diarrhea. Dave. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 15 15:29:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lsiA-0006w6-00; Fri, 15 Mar 2002 15:29:38 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B21051112F2; Fri, 15 Mar 2002 15:55:43 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA00238 for linac-eng-list; Fri, 15 Mar 2002 08:48:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [192.234.106.2] ([192.234.106.2]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA00230 for ; Fri, 15 Mar 2002 08:48:51 -0600 (CST) From: John.McGee@lvh.com Received: from no.name.available by [192.234.106.2] via smtpd (for [206.66.224.2]) with SMTP; 15 Mar 2002 14:48:51 UT X-Internal-ID: 3C914C1500001B1D Received: from lvh.com (192.234.106.35) by lvhlsgcs2.lvh.com (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 15 Mar 2002 09:44:28 -0500 Message-ID: Date: Fri, 15 Mar 2002 09:47:00 -0500 To: linac-eng@plato.aristotle.net Subject: Need info on Primus and 23ex Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.McGee@lvh.com X-Internal-ID: 3C914C1500001B1D Date: Fri, 15 Mar 2002 09:47:00 -0500 To: linac-eng@plato.aristotle.net Subject: Need info on Primus and 23ex Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk My facility is preparing to purchase our fifth linac. At this time we have all Elekta, but that may change. We are looking at the Primus and the varian 23ex. My main question is the reliability of the Primus. Specifically the gun and waveguide assembly and the power supplies. I would really appreciate an opinion other than the manuf. service person. Also if anyone wants to add their two cents about the Varian unit, I am more than welcome to listen. John McGee John and Dorothy Morgan Cancer Center Lehigh Valley Hospital John.McGee@lvh.com 610-402-0729 Please note that if you received this message in error,you are hereby notified that any dissemination of this communication is strictly prohibited. Please notify me immediately by reply e-mail and delete all copies of the original message. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 15 17:52:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16luwj-0000GV-00; Fri, 15 Mar 2002 17:52:49 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 47C011112F2; Fri, 15 Mar 2002 18:18:51 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA10738 for linac-eng-list; Fri, 15 Mar 2002 11:10:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA10671 for ; Fri, 15 Mar 2002 11:10:10 -0600 (CST) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Fri, 15 Mar 2002 10:09:35 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Fri, 15 Mar 2002 10:09:09 -0700 From: "Robert Wood" To: , Subject: Re: FW: closed access to list. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA10703 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Mar 2002 10:09:09 -0700 From: "Robert Wood" To: , Subject: Re: FW: closed access to list. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA10703 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk What is involved with closing the list and what will it require from those of us who wish to remain on it. Any views or opinions expressed in this email (unless otherwise stated) are mine and do not reflect the opinions or policies of any other person or organization. This email may contain personel or private information and the foregoing is not intended to be a legally binding or legally effective electronic signature. This message may contain legally privileged or confidential information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 15 17:57:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lv0y-0000Gi-00; Fri, 15 Mar 2002 17:57:12 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D452C1112F2; Fri, 15 Mar 2002 18:23:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA10906 for linac-eng-list; Fri, 15 Mar 2002 11:12:18 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA10883 for ; Fri, 15 Mar 2002 11:12:09 -0600 (CST) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Fri, 15 Mar 2002 10:11:37 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Fri, 15 Mar 2002 10:11:31 -0700 From: "Robert Wood" To: , Cc: Subject: Re: Is the list already closed ?????? Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA10887 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Mar 2002 10:11:31 -0700 From: "Robert Wood" To: , Cc: Subject: Re: Is the list already closed ?????? Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA10887 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk The easyiest way I have found to get out on the list is to reply to someone then once my E-mail compose screen comes up I just rename the subject and click on send to all and It seems to work. Any views or opinions expressed in this email (unless otherwise stated) are mine and do not reflect the opinions or policies of any other person or organization. This email may contain personel or private information and the foregoing is not intended to be a legally binding or legally effective electronic signature. This message may contain legally privileged or confidential information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 15 17:58:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lv2C-0000Gp-00; Fri, 15 Mar 2002 17:58:28 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 14B361112F2; Fri, 15 Mar 2002 18:24:30 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA11994 for linac-eng-list; Fri, 15 Mar 2002 11:21:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA11990 for ; Fri, 15 Mar 2002 11:21:38 -0600 (CST) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Fri, 15 Mar 2002 10:00:59 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Fri, 15 Mar 2002 10:00:32 -0700 From: "Robert Wood" To: , , Subject: RE: closed access to list. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA11991 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Mar 2002 10:00:32 -0700 From: "Robert Wood" To: , , Subject: RE: closed access to list. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA11991 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I too would like to see the list closed. If we don't close it then I will have to eventually be removed because of the Porn Spam that we have been receiving lately. This hospital also monitors incoming traffic. Any views or opinions expressed in this email (unless otherwise stated) are mine and do not reflect the opinions or policies of any other person or organization. This email may contain personel or private information and the foregoing is not intended to be a legally binding or legally effective electronic signature. This message may contain legally privileged or confidential information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 15 19:25:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lwOF-0000PL-00; Fri, 15 Mar 2002 19:25:19 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4E8221112F2; Fri, 15 Mar 2002 19:51:20 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA17256 for linac-eng-list; Fri, 15 Mar 2002 12:44:07 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web11603.mail.yahoo.com (web11603.mail.yahoo.com [216.136.172.55]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA17252 for ; Fri, 15 Mar 2002 12:44:06 -0600 (CST) Message-ID: <20020315184404.24248.qmail@web11603.mail.yahoo.com> Received: from [66.57.101.51] by web11603.mail.yahoo.com via HTTP; Fri, 15 Mar 2002 10:44:04 PST Date: Fri, 15 Mar 2002 10:44:04 -0800 (PST) From: Ronnie Relyea To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Mar 2002 10:44:04 -0800 (PST) From: Ronnie Relyea To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Let those who wish to remove themselves do so quietly. I for one find this list extremely useful and simply delete the garbage that comes through. Leave it open!!!!! Ron Relyea __________________________________________________ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 15 20:49:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lxhy-0000Xn-00; Fri, 15 Mar 2002 20:49:46 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0B22A1112F2; Fri, 15 Mar 2002 21:15:45 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA25387 for linac-eng-list; Fri, 15 Mar 2002 14:08:10 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from chs-exchsv2.covhealth.com (exchangesvr.covhealth.com [207.165.234.87]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA25380 for ; Fri, 15 Mar 2002 14:08:08 -0600 (CST) Received: by CHS-EXCHSV2 with Internet Mail Service (5.5.2653.19) id ; Fri, 15 Mar 2002 14:08:08 -0600 Message-ID: <293B6F21E62CD411BEC400508BD681B2414BC1@CHS-EXCHSV2> From: "Lockhart, Ryan" To: "'linac-eng@plato.aristotle.net'" Subject: open/closed Date: Fri, 15 Mar 2002 14:08:02 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lockhart, Ryan" To: "'linac-eng@plato.aristotle.net'" Subject: open/closed Date: Fri, 15 Mar 2002 14:08:02 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Why are some of you objected to closing the list, what problems would it cause? I know that I could very easily be banned from the list by our IT department due to some of the spam that I receive. They won't listen to any excuses I have, even if none of them are opened. I receive a lot of helpful advice from the list and would hate to lose access to it. I'm just wondering what the reasons are. Thanks. Ryan Lockhart Covenant Medical Center 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 15 22:38:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lzP7-0000jL-00; Fri, 15 Mar 2002 22:38:25 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 562841112F2; Fri, 15 Mar 2002 23:04:09 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA02520 for linac-eng-list; Fri, 15 Mar 2002 15:08:10 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA02513 for ; Fri, 15 Mar 2002 15:08:06 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA29087; Fri, 15 Mar 2002 15:13:52 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3C9262C4.682BB46E@scf.sk.ca> Date: Fri, 15 Mar 2002 15:08:21 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en Mime-Version: 1.0 To: Linac list Subject: Varian 21EX Thyratron Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Mar 2002 15:08:21 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Accept-Language: en To: Linac list Subject: Varian 21EX Thyratron Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have a Varian 21EX s/n 1569 with the new modualtor Cabinet. We noticed that our Thyratron Voltage is high. 6.7v Main and 6.8v Deque. We investigated and found no adjustment for these voltages, so we decided to reduce the supply volts to the machine by about 4%. Surprisingly we found this had no effect on the Thyratron Voltage. This is a total mystery to us, as the Thyratron Voltage looks like it should be directly proportional to the incomming voltage. Can anyone tell us why the voltage did not change, and how can we change this voltage Thanks in advance Robert Penley 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Mar 16 18:20:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16mHqv-0002kA-00; Sat, 16 Mar 2002 18:20:21 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 94C001112F2; Sat, 16 Mar 2002 18:39:16 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA09959 for linac-eng-list; Sat, 16 Mar 2002 11:39:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA09952 for ; Sat, 16 Mar 2002 11:39:19 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Sat, 16 Mar 2002 08:35:22 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Sat, 16 Mar 2002 08:35:13 -0400 From: "David Burgess" To: , Subject: Re: Varian 21EX Thyratron Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_E1BC431A.91F0AC06" X-Guinevere: 1.0.14 ; Nova Scotia Hospital Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 16 Mar 2002 08:35:13 -0400 From: "David Burgess" To: , Subject: Re: Varian 21EX Thyratron Content-Type: multipart/alternative; boundary="=_E1BC431A.91F0AC06" X-Guinevere: 1.0.14 ; Nova Scotia Hospital Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_E1BC431A.91F0AC06 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Bob, I think your talking about Main and Deque filament voltages. If so, they are regulated by a stabilized transformer (transformer assy # = 2, transformer # 4, on a 21C), so changing the line voltage 4 % won't make = them change. But more to consider is that since they are not pure sine waves, you can = only get an accurate measurement with a True RMS meter. I think you'll = find them close to 6.3 if they measured 6.7 and 6.8 with a non True RMS = meter. The DeQ on a non EX model has a filament transformer with taps for 6.3, = 6.6, and 6.9 V. I think your EX will have that also. Best of luck with it, David Burgess Nova Scotia Cancer Centre >>> Bob Penley 3/15/2002 5:08:21 PM >>> We have a Varian 21EX s/n 1569 with the new modualtor Cabinet. We noticed that our Thyratron Voltage is high. 6.7v Main and 6.8v Deque. We investigated and found no adjustment for these voltages, so we decided to reduce the supply volts to the machine by about 4%. Surprisingly we found this had no effect on the Thyratron Voltage. This is a total mystery to us, as the Thyratron Voltage looks like it should be directly proportional to the incomming voltage. Can anyone tell us why the voltage did not change, and how can we change this voltage Thanks in advance Robert Penley --=_E1BC431A.91F0AC06 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
    Bob,
    I think your talking about Main and Deque filament=20 voltages.
    If so, they are regulated by a stabilized transformer= =20 (transformer assy # 2, transformer # 4, on a 21C), so changing the line = voltage=20 4 % won't make them change.
    But more to consider is that since they are not pure = sine=20 waves, you can only get an accurate measurement with a True RMS meter. I = think=20 you'll find them close to 6.3 if they measured 6.7 and 6.8 with a non True = RMS=20 meter.
    The DeQ on a non EX model has a filament transformer with = taps=20 for 6.3, 6.6, and 6.9 V. I think your EX will have that also.
    Best of luck with it,
    David Burgess
    Nova Scotia Cancer Centre
     

    >>> Bob Penley <rpenley@scf.sk.ca> 3/15/2002 = 5:08:21 PM=20 >>>
    We have a Varian 21EX s/n 1569 with the new modualtor=20 Cabinet.

        We noticed that our Thyratron Voltage = is=20 high. 6.7v Main and 6.8v
    Deque. We investigated and found no adjustment = for=20 these voltages, so we

    decided to reduce the supply volts to the = machine=20 by about 4%.

        Surprisingly we found this had no = effect=20 on the Thyratron Voltage.
    This is a total mystery to us, as the = Thyratron=20 Voltage looks like it
    should be directly proportional to the = incomming=20 voltage.

        Can anyone tell us why the voltage did = not=20 change, and how can we
    change this=20 voltage

            Thanks in=20 advance
    Robert Penley

    --=_E1BC431A.91F0AC06-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 18 13:35:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16mwLt-00026U-00; Mon, 18 Mar 2002 13:35:01 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 84F461112F5; Mon, 18 Mar 2002 13:59:46 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA04041 for linac-eng-list; Mon, 18 Mar 2002 07:01:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq08.netvigator.com (imsmq08.netvigator.com [208.139.127.40]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA04037 for ; Mon, 18 Mar 2002 07:01:42 -0600 (CST) Received: (qmail 11821 invoked from network); 18 Mar 2002 13:01:27 -0000 Received: from pcd421047.netvigator.com (HELO yeung) (203.218.211.47) by imsmq08.netvigator.com with SMTP; 18 Mar 2002 13:01:27 -0000 Message-ID: <002401c1ce7c$d19739e0$e8c7fea9@yeung> From: "k yeung" To: Subject: Re: Varian carrousel calibration failure Date: Mon, 18 Mar 2002 21:00:02 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01C1CEBF.DF7EF780" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Varian carrousel calibration failure Date: Mon, 18 Mar 2002 21:00:02 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01C1CEBF.DF7EF780" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0021_01C1CEBF.DF7EF780 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 2300CD version 6.1 We cannot calibrate our carrousel and the error code is 60. The = carrousel position switches seem to be okay and the pot's voltage is = about 5V. Could anyone advise the possible causes of the calibration failure? Thanks in advance. Kim Yeung ------=_NextPart_000_0021_01C1CEBF.DF7EF780 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
             Varian = 2300CD=20 version 6.1
     
    We cannot calibrate our carrousel and the error code = is 60.=20 The carrousel position switches seem  to be okay and the pot's = voltage is=20 about 5V.
     
    Could anyone advise the possible causes of the = calibration=20 failure?
     
    Thanks in advance.
     
    Kim Yeung
     
    ------=_NextPart_000_0021_01C1CEBF.DF7EF780-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 18 14:20:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16mx3v-0002dO-00; Mon, 18 Mar 2002 14:20:31 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 968BF1112F3; Mon, 18 Mar 2002 14:45:13 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA05483 for linac-eng-list; Mon, 18 Mar 2002 07:52:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m09.mx.aol.com (imo-m09.mx.aol.com [64.12.136.164]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA05479 for ; Mon, 18 Mar 2002 07:52:29 -0600 (CST) From: Rtsolution@aol.com Received: from Rtsolution@aol.com by imo-m09.mx.aol.com (mail_out_v32.5.) id y.50.844e9ee (17230) for ; Mon, 18 Mar 2002 08:51:51 -0500 (EST) Message-ID: <50.844e9ee.29c74af6@aol.com> Date: Mon, 18 Mar 2002 08:51:50 EST Subject: 600C2 EXDP1/EXDP2 interlock To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 5.0 for Windows sub 107 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Rtsolution@aol.com Date: Mon, 18 Mar 2002 08:51:50 EST Subject: 600C2 EXDP1/EXDP2 interlock To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have this ongoing problem with this EXDP1 and sometimes EXDP2 interlocks for the past few months. When it first happened I changed Timer I/F Control Timer pcbs and swapped DOS1 DOS2 cards, problem were not solved. Could not find any physical sign and Mag I is stable at 105A. (the maggy is 8 year old) I reprocessed the Maggy and the I/L frequency has reduced from 2/3 times a week once a week. After a forth night the frequency is increasing. Any experience or thought ? RTSolution 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 18 20:59:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16n3IG-0004Cq-00; Mon, 18 Mar 2002 20:59:44 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 174581112F4; Mon, 18 Mar 2002 21:24:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA21754 for linac-eng-list; Mon, 18 Mar 2002 14:20:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA21748 for ; Mon, 18 Mar 2002 14:20:46 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Mon, 18 Mar 2002 12:20:10 -0800 Message-ID: From: "Wilson, Jim" To: "'twaldron@mail.mdanderson.org'" , linac-eng@plato.aristotle.net Subject: RE: open or closed Date: Mon, 18 Mar 2002 12:19:30 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'twaldron@mail.mdanderson.org'" , linac-eng@plato.aristotle.net Subject: RE: open or closed Date: Mon, 18 Mar 2002 12:19:30 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Some of us will not be able to stay on the list if the porn keeps coming in. Why do you say the list will become boring? Would closing the list keep out the people that it was meant to serve? What exactly is it you want to see here? -----Original Message----- From: twaldron@mail.mdanderson.org [mailto:twaldron@mail.mdanderson.org] Sent: Monday, March 18, 2002 10:32 AM To: linac-eng@plato.aristotle.net Subject: open or closed Open, open, open. A closed list will not self-propagate the way an open one will. A closed list can become very boring, and besides, my delete button works just fine, thanks. I don't know about anybody else out there, but the SPAM from the linac-eng listserver does not constitue a large fraction of the junk I receive. Tim Waldron **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 18 21:10:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16n3Sw-0004Dm-00; Mon, 18 Mar 2002 21:10:46 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8D1211112F3; Mon, 18 Mar 2002 21:33:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA21938 for linac-eng-list; Mon, 18 Mar 2002 14:27:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.carti.com (adsl-65-66-64-155.carti.com [65.66.64.155]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA21931 for ; Mon, 18 Mar 2002 14:27:51 -0600 (CST) Received: by mail with Internet Mail Service (5.5.2650.21) id ; Mon, 18 Mar 2002 14:25:35 -0600 Message-ID: <456543C21489CA41BF1D6A22A721F5AA1194B0@cartimail.carti.com> From: Jim Beaty To: linac-eng@plato.aristotle.net Subject: Closed List Date: Mon, 18 Mar 2002 14:26:54 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Jim Beaty To: linac-eng@plato.aristotle.net Subject: Closed List Date: Mon, 18 Mar 2002 14:26:54 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Since it's inception, this list has been kept open to insure that it was easily accessible and that those looking for it could easily find it and inquire about it. Unfortunately, recent changes in spam postings (both in quantity and type) have made it necessary to take some action. The volume of junk email on the list has increased substantially in the last few weeks, and many subscribers have expressed justifiable concerns about the subject of some of the items showing up in their inboxes. In order to stop this barrage of spam, it will be necessary to close the list. This action will not affect those already subscribed; you will post and receive messages as you always have. Closing the list will only prevent non-subscribers from posting. After the list is closed, the only way for spammers to post will be to subscribe first. Since most spam comes from automated email programs, this in unlikely to be much of a problem. If it does become an issue, the next step will be to close subscriptions; meaning all subscription requests must be approved before they are activated. Since that will require quite a bit more administrative oversight, I hope it doesn't become necessary. :) It will probably take a week or so to make the changes needed to close the list. When it goes into effect, I'll post to let everyone know. In the meantime, use your delete key as need, and hopefully we can get back to talking about linacs instead of spam! Sincerely, Jim Beaty CARTI, Inc. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 14 15:41:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16lWPn-0008Mx-00; Thu, 14 Mar 2002 15:41:11 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A60271112F2; Thu, 14 Mar 2002 16:07:42 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA02496 for linac-eng-list; Thu, 14 Mar 2002 09:02:06 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ftwvir01.ftw.medcity.net (mail.ftw.medcity.net [199.91.36.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA02492 for ; Thu, 14 Mar 2002 09:02:05 -0600 (CST) Received: from 170.150.192.135 by ftwvir01.ftw.medcity.net (InterScan E-Mail VirusWall NT); Thu, 14 Mar 2002 09:04:23 -0600 Received: by ftwexcon02.ftw.medcity.net with Internet Mail Service (5.5.2653.19) id ; Thu, 14 Mar 2002 08:53:11 -0600 Message-ID: <87DA8A9ECCCFD211B51E0008C7B1558506E507F5@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'Linac-eng@plato.aristotle.net'" Subject: RE: Closing the list Date: Thu, 14 Mar 2002 08:52:43 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'Linac-eng@plato.aristotle.net'" Subject: RE: Closing the list Date: Thu, 14 Mar 2002 08:52:43 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello! > I sat by idle and did not respond the first time the subject went around > but now I would have cast my vote in favor of closing the list. > When I first subscribed I believed this list was for "linac engineers". > With want has been coming across lately, one could argue that the posts > about linacs is the Spam!!!!! > > If this trash continues, I may be called in question as to what I'm > actually using my computer for. "Big Brother is watching"! > > Mike T. > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 19 12:40:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nHyW-0007ok-00; Tue, 19 Mar 2002 12:40:20 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8EE3C1112F1; Tue, 19 Mar 2002 13:04:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA14208 for linac-eng-list; Tue, 19 Mar 2002 06:09:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from guinness.servers.plus.net (mx.last.plus.net [212.159.3.230]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA14204 for ; Tue, 19 Mar 2002 06:09:57 -0600 (CST) From: jim@northcoast.f9.co.uk Received: from [212.159.14.225] (helo=murphys.services.quay.plus.net) by guinness.servers.plus.net with smtp (Exim 3.16 #2) id 16nIE0-0001YP-00 for linac-eng@plato.aristotle.net; Tue, 19 Mar 2002 11:56:20 +0000 Received: (qmail 17642 invoked from network); 19 Mar 2002 12:07:39 -0000 Received: from unknown (HELO paranoia.servers.plus.net.uk) (192.168.229.10) by murphy.services.quay.plus.net with SMTP; 19 Mar 2002 12:07:39 -0000 Received: (qmail 17762 invoked by uid 60001); 19 Mar 2002 12:09:47 -0000 Date: 19 Mar 2002 12:09:47 -0000 To: linac-eng@plato.aristotle.net Subject: Dosecheckers Reply-To: jim@northcoast.f9.co.uk X-Mailer: PlusMail Message-ID: <20020319120947.northcoast@force9> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jim@northcoast.f9.co.uk Date: 19 Mar 2002 12:09:47 -0000 To: linac-eng@plato.aristotle.net Subject: Dosecheckers Reply-To: jim@northcoast.f9.co.uk Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Folks We are looking at purchasing a dosechecker for daily consistancy checks on our accelerators. The two in the frame presently are NE Technology 2630B and the PTW Linacheck. Would appreciate any comments on these, or any others, that you feel are right for the job. Regards Jim Wallace The Princess Royal Hospital Hull England 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 19 16:47:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nLpz-0001vM-00; Tue, 19 Mar 2002 16:47:47 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CC95D1112F3; Tue, 19 Mar 2002 17:12:03 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA03529 for linac-eng-list; Tue, 19 Mar 2002 10:09:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA03525 for ; Tue, 19 Mar 2002 10:09:44 -0600 (CST) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 16nMAZ-0005Ex-00; Tue, 19 Mar 2002 16:09:03 +0000 Received: from relay.nhs.uk (194.62.42.141) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3C811D7E001742BC for linac-eng@plato.aristotle.net; Tue, 19 Mar 2002 16:09:03 +0000 Received: from email.rbbh_msdomain1 (195.104.159.2) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C92086F000726AF for linac-eng@plato.aristotle.net; Tue, 19 Mar 2002 16:09:03 +0000 Received: by email.rbbh-tr.anglox.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Tue, 19 Mar 2002 16:09:02 -0000 Message-ID: From: Whittard Paul To: "'linac-eng'" Subject: RE: Dosecheckers Date: Tue, 19 Mar 2002 16:09:00 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Whittard Paul To: "'linac-eng'" Subject: RE: Dosecheckers Date: Tue, 19 Mar 2002 16:09:00 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Jim: Have you looked at the Checkmate from Sun nuclear (UK agents Imaging Equipment Ltd (formerly SIEL) ? Paul Whittard Royal Berkshire Hospital Reading RG1 5AN Tel: +44 (0) 118 9877 355 Fax: +44 (0) 118 9877 377 > -----Original Message----- > From: jim@northcoast.f9.co.uk [SMTP:jim@northcoast.f9.co.uk] > Sent: 19 March 2002 12:10 > To: linac-eng@plato.aristotle.net > Subject: Dosecheckers > > > Hi Folks > We are looking at purchasing a dosechecker for daily consistancy checks on > our accelerators. The two in the frame presently are NE Technology 2630B > and the PTW Linacheck. Would appreciate any comments on these, or any > others, that you feel are right for the job. > Regards Jim Wallace > The Princess Royal Hospital > Hull > England 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 08:47:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16naon-0003SM-00; Wed, 20 Mar 2002 08:47:33 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 57B251112FA; Wed, 20 Mar 2002 09:10:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA04862 for linac-eng-list; Wed, 20 Mar 2002 02:07:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r07.mx.aol.com (imo-r07.mx.aol.com [152.163.225.103]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA04858 for ; Wed, 20 Mar 2002 02:07:23 -0600 (CST) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-r07.mx.aol.com (mail_out_v32.5.) id y.14a.abecc43 (3941) for ; Wed, 20 Mar 2002 03:06:48 -0500 (EST) Message-ID: <14a.abecc43.29c99d17@aol.com> Date: Wed, 20 Mar 2002 03:06:47 EST Subject: 2100c lateral limits To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_14a.abecc43.29c99d17_boundary" X-Mailer: AOL 7.0 for Windows US sub 256 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Wed, 20 Mar 2002 03:06:47 EST Subject: 2100c lateral limits To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_14a.abecc43.29c99d17_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_14a.abecc43.29c99d17_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to all on the list (if there is anyone out there) Does anyone know the procedure for setting the software limits on the ETR couch lateral motion? I have a CL2100c that slams into the mechanical limits, and keeps driving the motor. Any help would be appreciated. Thanks in advance Mike Liddicote Accelerator Associates --part1_14a.abecc43.29c99d17_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit   Hello to all on the list  (if there is anyone out there)
          
           Does anyone know the procedure for setting the software limits on the ETR couch lateral motion?  I have a CL2100c that slams into the mechanical limits, and keeps driving the motor.  Any help would be appreciated.  Thanks in advance
    Mike Liddicote
    Accelerator Associates     --part1_14a.abecc43.29c99d17_boundary-- 1, filed,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 08:47:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16naon-0003SM-00; Wed, 20 Mar 2002 08:47:33 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 57B251112FA; Wed, 20 Mar 2002 09:10:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA04862 for linac-eng-list; Wed, 20 Mar 2002 02:07:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r07.mx.aol.com (imo-r07.mx.aol.com [152.163.225.103]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA04858 for ; Wed, 20 Mar 2002 02:07:23 -0600 (CST) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-r07.mx.aol.com (mail_out_v32.5.) id y.14a.abecc43 (3941) for ; Wed, 20 Mar 2002 03:06:48 -0500 (EST) Message-ID: <14a.abecc43.29c99d17@aol.com> Date: Wed, 20 Mar 2002 03:06:47 EST Subject: 2100c lateral limits To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_14a.abecc43.29c99d17_boundary" X-Mailer: AOL 7.0 for Windows US sub 256 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Wed, 20 Mar 2002 03:06:47 EST Subject: 2100c lateral limits To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_14a.abecc43.29c99d17_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_14a.abecc43.29c99d17_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to all on the list (if there is anyone out there) Does anyone know the procedure for setting the software limits on the ETR couch lateral motion? I have a CL2100c that slams into the mechanical limits, and keeps driving the motor. Any help would be appreciated. Thanks in advance Mike Liddicote Accelerator Associates --part1_14a.abecc43.29c99d17_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit   Hello to all on the list  (if there is anyone out there)
          
           Does anyone know the procedure for setting the software limits on the ETR couch lateral motion?  I have a CL2100c that slams into the mechanical limits, and keeps driving the motor.  Any help would be appreciated.  Thanks in advance
    Mike Liddicote
    Accelerator Associates     --part1_14a.abecc43.29c99d17_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 12:36:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16neOe-0006Ci-00; Wed, 20 Mar 2002 12:36:48 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EE2221112F3; Wed, 20 Mar 2002 13:17:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA13242 for linac-eng-list; Wed, 20 Mar 2002 06:01:33 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA13238 for ; Wed, 20 Mar 2002 06:01:32 -0600 (CST) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Wed, 20 Mar 2002 07:01:31 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA85@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 07:01:29 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 07:01:29 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Never had to do this. Usually it is not making it to the limit due to bearing position or dirt, keeps trying, looks like it has hit a limit. > -----Original Message----- > From: Mlaa@aol.com [SMTP:Mlaa@aol.com] > Sent: Wednesday, March 20, 2002 3:07 AM > To: linac-eng@plato.aristotle.net > Subject: 2100c lateral limits > > Hello to all on the list (if there is anyone out there) > > Does anyone know the procedure for setting the software limits on the > ETR couch lateral motion? I have a CL2100c that slams into the mechanical > limits, and keeps driving the motor. Any help would be appreciated. Thanks > in advance > Mike Liddicote > Accelerator Associates 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 12:37:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nePB-0006Dw-00; Wed, 20 Mar 2002 12:37:21 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB8D01112F3; Wed, 20 Mar 2002 13:17:49 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA13185 for linac-eng-list; Wed, 20 Mar 2002 05:58:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA13181 for ; Wed, 20 Mar 2002 05:58:28 -0600 (CST) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Wed, 20 Mar 2002 06:57:58 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA84@phsexch6.partners.org> From: "Maddox, Buford J" To: "'jim@northcoast.f9.co.uk'" , linac-eng@plato.aristotle.net Subject: RE: Dosecheckers Date: Wed, 20 Mar 2002 06:57:56 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'jim@northcoast.f9.co.uk'" , linac-eng@plato.aristotle.net Subject: RE: Dosecheckers Date: Wed, 20 Mar 2002 06:57:56 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have been satisfied with the Victoreen and Keithley checkers. > -----Original Message----- > From: jim@northcoast.f9.co.uk [SMTP:jim@northcoast.f9.co.uk] > Sent: Tuesday, March 19, 2002 7:10 AM > To: linac-eng@plato.aristotle.net > Subject: Dosecheckers > > > Hi Folks > We are looking at purchasing a dosechecker for daily consistancy checks on > our accelerators. The two in the frame presently are NE Technology 2630B > and the PTW Linacheck. Would appreciate any comments on these, or any > others, that you feel are right for the job. > Regards Jim Wallace > The Princess Royal Hospital > Hull > England 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 12:54:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nefL-0006UG-00; Wed, 20 Mar 2002 12:54:03 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5B28A1112F3; Wed, 20 Mar 2002 13:34:31 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA13580 for linac-eng-list; Wed, 20 Mar 2002 06:20:02 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA13576 for ; Wed, 20 Mar 2002 06:20:01 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16nf3y-0001oi-00; Wed, 20 Mar 2002 12:19:30 +0000 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C81284400156DBC for linac-eng@plato.aristotle.net; Wed, 20 Mar 2002 12:19:30 +0000 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C8D4A87000BFCF0 for linac-eng@plato.aristotle.net; Wed, 20 Mar 2002 12:19:30 +0000 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Wed, 20 Mar 2002 11:59:44 +0000 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Wed, 20 Mar 2002 11:59:31 +0000 From: "Chris Forrest" To: , Subject: Re: 2100c lateral limits Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA13577 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 20 Mar 2002 11:59:31 +0000 From: "Chris Forrest" To: , Subject: Re: 2100c lateral limits Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA13577 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Mike, Are you sure you are hitting the mechanical limits? I've known the linear bearing cages on those couches to become out of step with one another. IE the bearing cage in the front slide is displaced with respect to the rear slide. This usually occurs when the slides are getting dirty. What you may be experiencing is the bearing cage hitting the bearing cap on the ends of the slide before table top hits the limit switch. You should be able to see this occuring if you look carefully into the ends of the slides. I've found the only easy way way to align them is to push the couch top towards the limit with some controlled force. (Don't "hammer" it). Software limits are preset I believe and are dependent on accurate calibration of scales. Regards Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 >>> 03/20/02 08:06AM >>> Hello to all on the list (if there is anyone out there) Does anyone know the procedure for setting the software limits on the ETR couch lateral motion? I have a CL2100c that slams into the mechanical limits, and keeps driving the motor. Any help would be appreciated. Thanks in advance Mike Liddicote Accelerator Associates 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 13:27:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nfBm-0007Kf-00; Wed, 20 Mar 2002 13:27:34 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 50CB01112F3; Wed, 20 Mar 2002 14:08:02 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA14512 for linac-eng-list; Wed, 20 Mar 2002 06:50:36 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc_nt ([207.35.220.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA14507 for ; Wed, 20 Mar 2002 06:50:34 -0600 (CST) Received: by KRCCMAIL with Internet Mail Service (5.5.2653.19) id ; Wed, 20 Mar 2002 07:49:57 -0500 Message-ID: From: "Kloster, Stephen" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 07:49:55 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D00D.BC8C0610" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kloster, Stephen" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 07:49:55 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D00D.BC8C0610" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1D00D.BC8C0610 Content-Type: text/plain; charset="iso-8859-1" Hi Mike, Unless I misunderstand what you're talking about, what you need to adjust are the limit microswitches. They are both located on a single assembly which you can access by dropping the couch skirt and looking on the underside of the top. As far as I know, these are what stop the couch from driving into the mechanical stops. Regards, Steve Kloster Kingston RCC -----Original Message----- From: Mlaa@aol.com [mailto:Mlaa@aol.com] Sent: Wednesday, March 20, 2002 3:07 AM To: linac-eng@plato.aristotle.net Subject: 2100c lateral limits Hello to all on the list (if there is anyone out there) Does anyone know the procedure for setting the software limits on the ETR couch lateral motion? I have a CL2100c that slams into the mechanical limits, and keeps driving the motor. Any help would be appreciated. Thanks in advance Mike Liddicote Accelerator Associates ------_=_NextPart_001_01C1D00D.BC8C0610 Content-Type: text/html; charset="iso-8859-1"
    Hi Mike,
    Unless I misunderstand what you're talking about, what you need to adjust are the limit microswitches. They are both located on a single assembly which you can access by dropping the couch skirt and looking on the underside of the top. As far as I know, these are what stop the couch from driving into the mechanical stops.
    Regards,
    Steve Kloster
    Kingston RCC
     
    -----Original Message-----
    From: Mlaa@aol.com [mailto:Mlaa@aol.com]
    Sent: Wednesday, March 20, 2002 3:07 AM
    To: linac-eng@plato.aristotle.net
    Subject: 2100c lateral limits

      Hello to all on the list  (if there is anyone out there)
          
           Does anyone know the procedure for setting the software limits on the ETR couch lateral motion?  I have a CL2100c that slams into the mechanical limits, and keeps driving the motor.  Any help would be appreciated.  Thanks in advance
    Mike Liddicote
    Accelerator Associates
    ------_=_NextPart_001_01C1D00D.BC8C0610-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 08:13:16 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16Z5Dg-0003mf-00; Fri, 8 Feb 2002 08:13:16 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id F271B1112F1; Fri, 8 Feb 2002 08:05:20 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id AAA15415 for linac-eng-list; Fri, 8 Feb 2002 00:58:33 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from doros.ulleval.no ([158.36.186.9]) by plato1.aristotle.net (8.9.0/8.9.0) with ESMTP id AAA15411 for ; Fri, 8 Feb 2002 00:58:31 -0600 (CST) Received: from castor.mail.uus.no (unverified) by doros.ulleval.no (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Fri, 8 Feb 2002 07:58:39 +0100 Received: from bacchus.uus.no ([100.77.130.66]) by castor.mail.uus.no with Microsoft SMTPSVC(5.0.2195.2966); Fri, 8 Feb 2002 08:00:26 +0100 Received: from atlas.ullevaal.uus.no (unverified) by bacchus.uus.no (Content Technologies SMTPRS 4.2.5) with ESMTP id ; Fri, 8 Feb 2002 07:57:59 +0100 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: SV: Depleted Uranium weight X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Fri, 8 Feb 2002 07:57:59 +0100 Message-ID: <4F756D76DDBDE147A1CE1643F3764F7401594D@atlas.ullevaal.uus.no> Thread-Topic: Depleted Uranium weight Thread-Index: AcGwFlHKVB3OvTehQ+Kf9moSi7TUcgAV4NKA From: "Haugsnes Anne Berit" To: "Conn, Calvin R." , X-OriginalArrivalTime: 08 Feb 2002 07:00:26.0062 (UTC) FILETIME=[48FE96E0:01C1B06E] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id AAA15412 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Subject: SV: Depleted Uranium weight X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Fri, 8 Feb 2002 07:57:59 +0100 Thread-Topic: Depleted Uranium weight Thread-Index: AcGwFlHKVB3OvTehQ+Kf9moSi7TUcgAV4NKA From: "Haugsnes Anne Berit" To: "Conn, Calvin R." , X-OriginalArrivalTime: 08 Feb 2002 07:00:26.0062 (UTC) FILETIME=[48FE96E0:01C1B06E] X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id AAA15412 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk IKKE SENSITIVT INNHOLD We just got rid of our 6/100 and we gave the uranium to the responsible here at the hospital for disposal. I have no idea how much it was, all I know is that it was very heavy. We didn't get anything for it. Best regards, Anne Anne Berit Haugsnes Med. Engineer Dept. of Oncology Ulleval University Hospital Oslo, Norway +47 23016538 -----Opprinnelig melding----- Fra: Conn, Calvin R. [mailto:CRConn@st-claire.org] Sendt: 7. februar 2002 20:26 Til: 'linac-eng@plato1.aristotle.net' Emne: Depleted Uranium weight Hello all, I have been asked by our state regulatory agency about the amount of depleted uranium in our Varian 6/100. Does anyone know and have you ever had to find that information for your state agency? I have called Technical Options of GA and they are getting that info for me. I appreciate that assistance from them, but, have any of you needed to provide this before? Calvin R. Conn cconn@kih.net ********************************************************************** This footnote confirms that this email message has been swept for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato1.aristotle.net Fri Feb 08 14:38:51 2002 Received: from news.cv.ruu.nl (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 2.05 #1 (Debian)) id 16ZBEp-0000z6-00; Fri, 8 Feb 2002 14:38:51 +0100 Received: from plato1.aristotle.net (plato1.aristotle.net [204.233.139.43]) by caviar.isi.uu.nl (Postfix) with ESMTP id D573B1112F2; Fri, 8 Feb 2002 14:30:50 +0100 (MET) Received: by plato1.aristotle.net (8.9.0/8.9.0) id HAA21286 for linac-eng-list; Fri, 8 Feb 2002 07:07:25 -0600 (CST) X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato1.aristotle.net (8.9.0/8.9.0) with SMTP id HAA21282 for ; Fri, 8 Feb 2002 07:07:24 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Fri, 08 Feb 2002 09:05:29 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 08 Feb 2002 09:05:17 -0400 From: "Carl Murphy " To: Subject: Low dose rate on Varian 2100C Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA21283 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato1.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 08 Feb 2002 09:05:17 -0400 From: "Carl Murphy " To: Subject: Low dose rate on Varian 2100C Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato1.aristotle.net id HAA21283 Sender: owner-linac-eng@plato1.aristotle.net Precedence: bulk Hi Folks: 2100C S/N 708 C3 Digital Gun & T-Drive. Low dose rate on all electrons (4,6,9,12 MeV) and 6X. Klystron is due to be saturated. Will perform this weekend. Not sure if that is the problem yet. Looked at some waveforms: one thing I noticed when viewing GUN I at RR# (240mu/min): I see the GUN I pulse falling within the RFDRV pulse. My understanding is the GUN I pulse should be on the trailing edge of the RFDRV pulse. I read through some notes I had from a few years ago stating that. When I view these pulses, I am getting a GUN I pulse during the RFDRV pulse, however, it is flashing in and out of the RFDRV pulse. I am not sure if this is a non-coincident pulse I am seeing. The thing is, if I adjust console Gun Delay, the pulse appears within the RFDRV pulse all of the time and I get out the dose rate I need and it comes up right away, rather than being sluggish. I guess what I'd like to know, is that pulse supposed to appear all of the time in RR3? When I adjust the console gun delay, am I only placing more coincident pulses in with the RF pulse? Any suggestions would be appreciated. Regards, Carl Murphy _________________________________ Carl Murphy, C.E.T. Linear Accelerator Service Technologist Medical Physics Department Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax, Nova Scotia, Canada Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 13 10:33:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l58B-00074d-00; Wed, 13 Mar 2002 10:33:11 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3C8591112F1; Wed, 13 Mar 2002 11:00:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA03519 for linac-eng-list; Wed, 13 Mar 2002 03:58:56 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA03515 for ; Wed, 13 Mar 2002 03:58:54 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id F12171112F1; Wed, 13 Mar 2002 10:41:55 +0100 (MET) Received: from (kriek.radcl.ruu.nl) [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16l4qQ-0006sW-00; Wed, 13 Mar 2002 10:14:50 +0100 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 13 Mar 02 10:57:36 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 13 Mar 02 10:57:35 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: , "Haugsnes Anne Berit" Date: Wed, 13 Mar 2002 10:57:25 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Subject: Re: SV: closed access to list. In-reply-to: <4F756D76DDBDE147A1CE1643F3764F740159A9@atlas.ullevaal.uus.no> X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from Quoted-printable to 8bit by plato.aristotle.net id DAA03516 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: , "Haugsnes Anne Berit" Date: Wed, 13 Mar 2002 10:57:25 +0100 Content-type: text/plain; charset=ISO-8859-1 Subject: Re: SV: closed access to list. In-reply-to: <4F756D76DDBDE147A1CE1643F3764F740159A9@atlas.ullevaal.uus.no> X-MIME-Autoconverted: from Quoted-printable to 8bit by plato.aristotle.net id DAA03516 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Revisiting this again, with the frequency (and content) of the spam reaching the list, I feel that a move to a closed (subscriber only) list may well be justified. Here are some of the reasons for such a move that I can think of. 1. The list is losing subscribers. 2. Subscribers system administrators may begin to query why they are viewing "inappropriate material" - porn ads may be counted. 3 The server could end up being blacklisted, rendering the list virtually useless. Just my 2 eurocents worth Stuart Subject: SV: closed access to list. Date sent: Wed, 13 Mar 2002 08:12:28 +0100 From: "Haugsnes Anne Berit" To: > IKKE SENSITIVT INNHOLD > > Dave > > I totaly agree! I have also had it up to here (points to the same spot) > and would be very glad to see the spam go away! > > Anne > > Anne Berit Haugsnes > Nils Lauritssønsvei 27a > 0854 Oslo, Norway > > jobb: +47 23016538 > mob: +47 47638251 > > "I think, therefore I am single" > > -----Opprinnelig melding----- > Fra: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] > Sendt: 13. mars 2002 03:08 > Til: linac-eng@plato.aristotle.net > Emne: closed access to list. > > > G'day, > I don't want to revisit a previous issue but...... > > I've had it up to here with spam. > I have noticed that there are fewer genuine postings and suspect that we > are losing valuable colleagues from the list. If we allow this trend to > continue there will be no point in this list. > > Suggestion. Close access to the list. Only allow members to contribute. > Membership can be freely given to engineers and interested bona-fide > groups. Maybe this will stop the continual flow of e-diarrhea. > > Dave. > Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 13:46:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nfUX-0007zu-00; Wed, 20 Mar 2002 13:46:57 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 583661112F4; Wed, 20 Mar 2002 14:27:25 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA15367 for linac-eng-list; Wed, 20 Mar 2002 07:07:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hrccex.hrcc.on.ca ([209.167.169.190]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA15363 for ; Wed, 20 Mar 2002 07:07:16 -0600 (CST) Received: from SMTP agent by mail gateway Wed, 20 Mar 2002 08:40:09 -0500 Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Wed, 20 Mar 2002 08:06:57 -0500 Message-ID: <9C688FB52A05D51194750002B325B5F714FFA0@hrccex.hrcc.on.ca> From: "Lapenna, Russ" To: "'Chris Forrest'" , Mlaa@aol.com, linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 08:06:56 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lapenna, Russ" To: "'Chris Forrest'" , Mlaa@aol.com, linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 08:06:56 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Yes I've experienced what Chris describes several times. If you slowly push the couch top laterally all the way in either direction you should hear the end switch (the one that will stop your motor drive) actuate. When the bearings get misaligned you get a condition where you will not reach the true end where the switch activates because the bearing is pushing against the bearing stop. As Chris pointed out, a firm push should slide things back into place. Russ LaPenna Electronics Engineering Technologist Medical Physics Dept. Hamilton Regional Cancer Centre 699 Concession St. Hamilton, Ontario L8V 5C2 (905) 387-9711 ext. 67017 > -----Original Message----- > From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] > Sent: Wednesday, March 20, 2002 7:00 AM > To: Mlaa@aol.com; linac-eng@plato.aristotle.net > Subject: Re: 2100c lateral limits > > > Mike, > > Are you sure you are hitting the mechanical limits? I've > known the linear bearing cages on those couches to become out > of step with one another. > IE the bearing cage in the front slide is displaced with > respect to the rear slide. This usually occurs when the > slides are getting dirty. > > What you may be experiencing is the bearing cage hitting the > bearing cap on the ends of the slide before table top hits > the limit switch. You should be able to see this occuring if > you look carefully into the ends of the slides. > I've found the only easy way way to align them is to push the > couch top towards the limit with some controlled force. > (Don't "hammer" it). > > Software limits are preset I believe and are dependent on > accurate calibration of scales. > > Regards > > Chris > > > > > Chris Forrest > Technical Specialist > Medical Physics Service > Cookridge Hospital > Leeds LS16 6QB > UK > > Tel. +44 113 3924354 > Fax. +44 113 3924122 > > > >>> 03/20/02 08:06AM >>> > Hello to all on the list (if there is anyone out there) > > Does anyone know the procedure for setting the > software limits on the > ETR couch lateral motion? I have a CL2100c that slams into > the mechanical > limits, and keeps driving the motor. Any help would be > appreciated. Thanks > in advance > Mike Liddicote > Accelerator Associates > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 14:16:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nfwf-0008Qk-00; Wed, 20 Mar 2002 14:16:01 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0397A1112F4; Wed, 20 Mar 2002 14:56:29 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA16908 for linac-eng-list; Wed, 20 Mar 2002 07:35:49 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from whses01.wellmont.org (whses01.wellmont.org [151.102.96.168]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA16904 for ; Wed, 20 Mar 2002 07:35:47 -0600 (CST) Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Wed, 20 Mar 2002 08:35:15 -0500 Message-ID: <7AF61AA0D5DBD511B2990090274E731679692F@whses02.wellmont.org> From: "Falcinelli, Marc A" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 08:35:07 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Falcinelli, Marc A" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100c lateral limits Date: Wed, 20 Mar 2002 08:35:07 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Mike, As far as I know, there is no adjustment of the software limits. The limits are written into the software and can not be editted. There is probally another cause of your problem. A common cause of this is the lateral P.R.O. is calibrated backwards. That would be the first thing I would look at. Marc -----Original Message----- From: Mlaa@aol.com [mailto:Mlaa@aol.com] Sent: Wednesday, March 20, 2002 3:07 AM To: linac-eng@plato.aristotle.net Subject: 2100c lateral limits Hello to all on the list (if there is anyone out there) Does anyone know the procedure for setting the software limits on the ETR couch lateral motion? I have a CL2100c that slams into the mechanical limits, and keeps driving the motor. Any help would be appreciated. Thanks in advance Mike Liddicote Accelerator Associates 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 15:07:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ngkq-0000f8-00; Wed, 20 Mar 2002 15:07:52 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E3FA91112F3; Wed, 20 Mar 2002 15:48:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA19318 for linac-eng-list; Wed, 20 Mar 2002 08:35:44 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from advocatehealth.com (moat.advocatehealth.com [64.241.230.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA19312; Wed, 20 Mar 2002 08:35:42 -0600 (CST) Received: from nsmailha ([10.18.117.13]) by ns.advocatehealth.com with ESMTP id <119094>; Wed, 20 Mar 2002 08:35:41 -0600 Received: from advocatehealth.com (localhost [127.0.0.1]) by webmail.advocatehealth.com (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0GTA0022X0JEJ3@webmail.advocatehealth.com>; Wed, 20 Mar 2002 08:35:38 -0600 (CST) Received: by webmail.advocatehealth.com id ; Wed, 20 Mar 2002 08:34:30 -0600 Date: Wed, 20 Mar 2002 08:32:00 -0600 From: Kerry Price Subject: Re: 2100c lateral limits To: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-identifier: CCMAIL-200203200834300003 Hop-count: 1 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 20 Mar 2002 08:32:00 -0600 From: Kerry Price Subject: Re: 2100c lateral limits To: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net Content-type: text/plain; charset=US-ASCII Content-identifier: CCMAIL-200203200834300003 Hop-count: 1 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Mike, This is not a software issue or limit switch issue. The lateral bearings are out of alignment relative to one another. To re-align them unlock the lateral brake and slide the couch top back and forth from one limit to the other. It doesn't take a lot of force but eventually the bearing ways will re-align. Kerry Price Lutheran General Hospital Park Ridge, IL USA ______________________________ Reply Separator _________________________________ Subject: 2100c lateral limits Author: owner-linac-eng@plato.aristotle.net at PO_EXTERNET Date: 03/20/2002 3:06 AM Hello to all on the list (if there is anyone out there) Does anyone know the procedure for setting the software limits on the ETR couch lateral motion? I have a CL2100c that slams into the mechanical limits, and keeps driving the motor. Any help would be appreciated. Thanks in advance Mike Liddicote Accelerator Associates 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 20 17:14:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nijZ-0001qk-00; Wed, 20 Mar 2002 17:14:41 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7C3ED1112F3; Wed, 20 Mar 2002 17:55:06 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA25407 for linac-eng-list; Wed, 20 Mar 2002 10:28:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA25400 for ; Wed, 20 Mar 2002 10:28:06 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Wed, 20 Mar 2002 12:26:00 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 20 Mar 2002 12:25:52 -0400 From: "David Burgess" To: , Subject: Re: 2100c lateral limits Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_7C21D508.98F9A4A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 20 Mar 2002 12:25:52 -0400 From: "David Burgess" To: , Subject: Re: 2100c lateral limits Content-Type: multipart/alternative; boundary="=_7C21D508.98F9A4A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_7C21D508.98F9A4A0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Mike, I agree with Chris and others in that the linear bearing strips (on the = lat and lng couchways) tend to migrate. When they hit the ways end cap = they do so with a solid tactile feel and a clunk. It really seems that the = ways hit the mechanical end limit, but its the bearing strip that hit it. A quick check that you can do is to move the top to the lateral centreline.= ( If your couch doesn't have a lat centreline, then you'll have to make = it ). Then measure its travel to each side from centre. Both sides of = center should be an equal distance.=20 Also when your on the centreline the lat pot should be in the centre of = its ohms range. You can also read out the pot voltage in the service = screen or check its capture positions in the service calibrate screen. If you re-position the pot, be carefull. It uses nearly all its turns = range and so it must be well centered when the couch top is centered. = Otherwise you'll come to the end of pot turns and break the pot. If this isn't your problem, come back on the list. Most of us with ETR's = have been through this kind of problem many times. Best regards David Burgess Nova Scotia Cancer Centre >>> 3/20/2002 4:06:47 AM >>> Hello to all on the list (if there is anyone out there) =20 Does anyone know the procedure for setting the software limits on = the ETR couch lateral motion? I have a CL2100c that slams into the = mechanical limits, and keeps driving the motor. Any help would be = appreciated. Thanks in advance Mike Liddicote Accelerator Associates=20 --=_7C21D508.98F9A4A0 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
    Mike,
    I agree with Chris and others in that the linear = bearing=20 strips (on the lat and lng couchways) tend to migrate. When they hit the = ways=20 end cap they do so with a solid tactile feel and a clunk. It really = seems=20 that the ways hit the mechanical end limit, but its the bearing strip = that=20 hit it.
    A quick check that you can do is to move the top = to the=20 lateral centreline. ( If your couch doesn't have a lat centreline, then = you'll=20 have to make it ). Then measure its travel to each side from centre. Both = sides=20 of center should be an equal distance.
    Also when your on the centreline the lat pot should be = in the=20 centre of its ohms range. You can also read out the pot voltage in the = service=20 screen or check its capture positions in the service calibrate=20 screen.
    If you re-position the pot, be carefull. It uses = nearly all=20 its turns range and so it must be well centered when the couch top is = centered.=20 Otherwise you'll come to the end of pot turns and break the pot.
    If this isn't your problem, come back on the list. = Most of us=20 with ETR's have been through this kind of problem many times.
    Best regards
    David Burgess
    Nova Scotia Cancer Centre

    >>>=20= <Mlaa@aol.com> 3/20/2002 4:06:47 AM >>>
     =20 Hello to all on the list  (if there is anyone out=20 there)
          =20
           Does anyone know the procedure = for=20 setting the software limits on the ETR couch lateral motion?  I have = a=20 CL2100c that slams into the mechanical limits, and keeps driving the=20 motor.  Any help would be appreciated.  Thanks in advance
    Mike= =20 Liddicote
    Accelerator Associates
    --=_7C21D508.98F9A4A0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 21 01:47:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nqjV-0002w6-00; Thu, 21 Mar 2002 01:47:09 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8FF121112F1; Thu, 21 Mar 2002 02:27:35 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA12453 for linac-eng-list; Wed, 20 Mar 2002 19:09:27 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d03.mx.aol.com (imo-d03.mx.aol.com [205.188.157.35]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA12447 for ; Wed, 20 Mar 2002 19:09:26 -0600 (CST) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-d03.mx.aol.com (mail_out_v32.5.) id y.175.54d266b (3859) for ; Wed, 20 Mar 2002 20:08:43 -0500 (EST) Message-ID: <175.54d266b.29ca8c9b@aol.com> Date: Wed, 20 Mar 2002 20:08:43 EST Subject: 2100c lateral limits To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_175.54d266b.29ca8c9b_boundary" X-Mailer: AOL 7.0 for Windows US sub 256 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Wed, 20 Mar 2002 20:08:43 EST Subject: 2100c lateral limits To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_175.54d266b.29ca8c9b_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_175.54d266b.29ca8c9b_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello list, Thanks to all who responded to the CL 2100c lateral limits. I will let you know how it turns out. I am also lookiong for a superficial unit that someone might be looking to get rid of. It needs to be a unit cabable of 100kvp to 250kvp. Thanks again to all who responded Mike Liddicote Accelerator Associates --part1_175.54d266b.29ca8c9b_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello list,
    Thanks to all who responded to the CL 2100c lateral limits.  I will let you know how it turns out.
           I am also lookiong for a superficial unit that someone might be looking to get rid of.  It needs to be a unit cabable of 100kvp to 250kvp.  Thanks again to all who responded
    Mike Liddicote
    Accelerator Associates     --part1_175.54d266b.29ca8c9b_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 21 10:52:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16nzFG-0006Vu-00; Thu, 21 Mar 2002 10:52:30 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DDFE41112F3; Thu, 21 Mar 2002 11:32:55 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA03919 for linac-eng-list; Thu, 21 Mar 2002 04:14:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d03.mx.aol.com (imo-d03.mx.aol.com [205.188.157.35]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA03915 for ; Thu, 21 Mar 2002 04:14:53 -0600 (CST) From: Rtsolution@aol.com Received: from Rtsolution@aol.com by imo-d03.mx.aol.com (mail_out_v32.5.) id y.ca.877a945 (4313) for ; Thu, 21 Mar 2002 05:14:09 -0500 (EST) Message-ID: Date: Thu, 21 Mar 2002 05:14:09 EST Subject: 600C2 EXDP1/EXDP2 interlock To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 5.0 for Windows sub 107 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Rtsolution@aol.com Date: Thu, 21 Mar 2002 05:14:09 EST Subject: 600C2 EXDP1/EXDP2 interlock To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have this ongoing problem with this EXDP1 and sometimes EXDP2 interlocks for the past few months. When it first happened I changed Timer I/F Control Timer pcbs and swapped DOS1 DOS2 cards, problem were not solved. Could not find any physical sign and Mag I is stable at 105A. (the maggy is 8 year old) I reprocessed the Maggy and the I/L frequency has reduced from 2/3 times a week once a week. After a forth night the frequency is increasing. Any experience or thought ? RTSolution 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 21 17:13:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16o5Bp-00019m-00; Thu, 21 Mar 2002 17:13:21 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 170711112F3; Thu, 21 Mar 2002 17:53:46 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA19668 for linac-eng-list; Thu, 21 Mar 2002 10:33:36 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA19664 for ; Thu, 21 Mar 2002 10:33:34 -0600 (CST) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Thu, 21 Mar 2002 11:33:04 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA87@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Linac-eng@plato.aristotle.net'" Subject: RT-50 available Date: Thu, 21 Mar 2002 11:33:01 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Linac-eng@plato.aristotle.net'" Subject: RT-50 available Date: Thu, 21 Mar 2002 11:33:01 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We are getting rid of an RT-50, in working order. Anyone interested please reply. Jerry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 22 14:00:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16oOeU-0005bp-00; Fri, 22 Mar 2002 14:00:14 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CE7E21112F3; Fri, 22 Mar 2002 14:40:36 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA12232 for linac-eng-list; Fri, 22 Mar 2002 07:20:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA12227 for ; Fri, 22 Mar 2002 07:20:52 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16oOyR-0003Ot-00; Fri, 22 Mar 2002 13:20:51 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C812844001952BB for linac-eng@plato.aristotle.net; Fri, 22 Mar 2002 13:20:51 +0000 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C8D4B88000FA19E for linac-eng@plato.aristotle.net; Fri, 22 Mar 2002 13:20:51 +0000 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Fri, 22 Mar 2002 13:20:37 +0000 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Fri, 22 Mar 2002 13:20:30 +0000 From: "Chris Forrest" To: Subject: Varian Technical Users Group? Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA12228 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 22 Mar 2002 13:20:30 +0000 From: "Chris Forrest" To: Subject: Varian Technical Users Group? Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA12228 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Having just attended the "annual" Elekta Technical Users Group meeting yesterday, I just wondered whether the Varian one was still running here in the UK? Anyone? Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 22 16:11:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16oQhB-0006qP-00; Fri, 22 Mar 2002 16:11:09 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F61B1112F3; Fri, 22 Mar 2002 16:51:31 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA22709 for linac-eng-list; Fri, 22 Mar 2002 09:34:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA22705 for ; Fri, 22 Mar 2002 09:34:37 -0600 (CST) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g2MFY9t24967 for ; Fri, 22 Mar 2002 08:34:09 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.249.25]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g2MFYFJ25162 for ; Fri, 22 Mar 2002 08:34:15 -0700 (MST) Message-ID: <3C9B4FE0.7449D8D6@cancerboard.ab.ca> Date: Fri, 22 Mar 2002 08:38:08 -0700 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Subject: Want to buy RT250 X-ray or equivalent. Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 22 Mar 2002 08:38:08 -0700 From: Len Johnson X-Accept-Language: en To: linac-eng@plato.aristotle.net Subject: Want to buy RT250 X-ray or equivalent. Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk A friend is looking for an X-ray unit similar to a Philips RT250 for veterinary work. There were several postings recently concerning RT250 units being disposed of, replaced etc. Could anyone with any information please contact me via this list. I will put you into contact with the interested party. Thanks, Len Johnson 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 22 19:20:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16oTe7-0007CY-00; Fri, 22 Mar 2002 19:20:11 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 11CBC1112F5; Fri, 22 Mar 2002 19:58:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA22556 for linac-eng-list; Fri, 22 Mar 2002 12:39:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [192.234.106.2] ([192.234.106.2]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA22540 for ; Fri, 22 Mar 2002 12:39:36 -0600 (CST) From: John.McGee@lvh.com Received: from no.name.available by [192.234.106.2] via smtpd (for [206.66.224.2]) with SMTP; 22 Mar 2002 18:39:36 UT X-Internal-ID: 3C9AEE3600001857 Received: from lvh.com (192.234.106.35) by lvhlsgcs2.lvh.com (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 22 Mar 2002 13:34:28 -0500 Message-ID: Date: Fri, 22 Mar 2002 13:35:00 -0500 To: linac-eng@plato.aristotle.net Subject: How about the Varian 23EX Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.McGee@lvh.com X-Internal-ID: 3C9AEE3600001857 Date: Fri, 22 Mar 2002 13:35:00 -0500 To: linac-eng@plato.aristotle.net Subject: How about the Varian 23EX Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I would like to thank all for their input on the Primus issue. It was quite enlightening. I now ask the Varian techs to give me their two cents. We are looking at the 23EX but I would appreciate any and all coments on the Varian machines and the company itself. How are the install guys, service guys, help desk, parts availability and so on and so forth. I really appreciate this help in making the right decision and again want to thank all have inputed and all who will. Open or closed long live the list!!! Please note that if you received this message in error,you are hereby notified that any dissemination of this communication is strictly prohibited. Please notify me immediately by reply e-mail and delete all copies of the original message. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Mar 24 17:29:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pAsK-0001Ze-00; Sun, 24 Mar 2002 17:29:44 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5ADA31112F2; Sun, 24 Mar 2002 18:09:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA21658 for linac-eng-list; Sun, 24 Mar 2002 10:52:37 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from desilota.com ([203.62.205.11]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA21648 for ; Sun, 24 Mar 2002 10:52:33 -0600 (CST) From: marcelle_belko@desilota.com Received: from sydint1.microthin.com.au ([98.44.214.220]) by mail.gmx.net with asmtp; Sun, 24 Mar 2002 16:57:14 -0000 Received: from unknown (HELO sparc.isl.net) (41.152.27.245) by smtp4.cyberec.com with smtp; Sun, 24 Mar 2002 18:53:26 -0200 Reply-To: Message-ID: <035a21c28d4a$1374d4d8$4ce52bb7@tjvjne> To: User@plato.aristotle.net Subject: re: domain registration savings Date: Sun, 24 Mar 2002 15:33:34 +0100 MiME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: marcelle_belko@desilota.com Reply-To: To: User@plato.aristotle.net Subject: re: domain registration savings Date: Sun, 24 Mar 2002 15:33:34 +0100 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk LATEST NEWS The new domain names are finally available to the general public at discount prices. 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Sincerely, Domain Administrator Affordable Domains 8362RtPA0-676vkqE9177Cjl22 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 25 16:48:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pWhl-0003lR-00; Mon, 25 Mar 2002 16:48:17 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AB8B31112F4; Mon, 25 Mar 2002 17:28:04 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA16716 for linac-eng-list; Mon, 25 Mar 2002 10:11:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA16711 for ; Mon, 25 Mar 2002 10:11:23 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Mon, 25 Mar 2002 11:10:34 -0500 Message-ID: From: "Rozenblat, Alex" To: "'linac'" Subject: Electa linac: water temperature calibration. Date: Mon, 25 Mar 2002 11:10:33 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'linac'" Subject: Electa linac: water temperature calibration. Date: Mon, 25 Mar 2002 11:10:33 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello, colleagues I am relatively green with Electa machines (not like I am trying to find any excuse) that's why I am eager to try everything myself. We recently updated our Electas to RDT desktop version. I tried to do water temperature calibration according to my understanding of old system calibration procedure - and failed. When I introduced proper temperature on "Calibration page" (Cal value) my temperature began to oscillate and did not stop after 5 minutes, so I brought part10 of Item223 (Wat. Temp) back to original value and temp. stabilised right away. But it's not the temp. I want to see on my screen. Second question. I could not find how actually to set up water temp. for servo to follow. Manual requires 30 degrees and my machine servos around 29 (at least it reports 29). It's not big deal but still I'd like to know how to do this. Third, not related, question. Greasing of MLC leadscrew. We bought this grease in syringe from Electa. May be somebody knows a substitution or second source? I scanned through J.Kok's website but did not find answers. Thank you in advance, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 25 19:38:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pZMT-0004Ks-00; Mon, 25 Mar 2002 19:38:29 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B2D5C1112F3; Mon, 25 Mar 2002 20:18:33 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA10381 for linac-eng-list; Mon, 25 Mar 2002 12:56:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA10361 for ; Mon, 25 Mar 2002 12:56:11 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA20269 for ; Mon, 25 Mar 2002 12:52:26 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B87.00679AD9 ; Mon, 25 Mar 2002 12:51:38 -0600 X-Lotus-FromDomain: MDACC To: linac-eng@plato.aristotle.net Message-ID: <86256B87.006798D8.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 25 Mar 2002 12:54:05 -0600 Subject: RSEA 2002 meeting Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: linac-eng@plato.aristotle.net Date: Mon, 25 Mar 2002 12:54:05 -0600 Subject: RSEA 2002 meeting Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk The Radiotherapy Service Engineers Association is now incorporated as a non-profit corporation. The formation committe recently met in Houston and made plans for the first general meeting to be held in conjunction with the AAPM this July in Montreal. The AAPM will be meeting July 14th - 18th, our meeting will be the 13th and 14th. Objectives for this meeting will be to register membership, (re)define necessary committee structure, ratify ByLaws, elect officers, and hold an educational symposium. Anyone interested in attending this meeting please provide contact information to Chuck Smith, chusmith@mdanderson.org, FAX 713-745-4984, so we can send you a registration packet. More information will be posted in this venue soon, and on our website when it is up. Thanks. Tim Waldron 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Mar 25 23:39:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pd7a-0004Uj-00; Mon, 25 Mar 2002 23:39:22 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2DBC31112F9; Tue, 26 Mar 2002 00:16:01 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA25192 for linac-eng-list; Mon, 25 Mar 2002 13:58:02 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [192.234.106.2] ([192.234.106.2]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA25188 for ; Mon, 25 Mar 2002 13:58:01 -0600 (CST) From: John.McGee@lvh.com Received: from no.name.available by [192.234.106.2] via smtpd (for [206.66.224.2]) with SMTP; 25 Mar 2002 19:58:00 UT X-Internal-ID: 3C9E1EDC00002526 Received: from lvh.com (192.234.106.35) by lvhlsgcs2.lvh.com (NPlex 2.0.108) for Linac-eng@plato.aristotle.net; 25 Mar 2002 14:52:48 -0500 Message-ID: Date: Mon, 25 Mar 2002 14:54:00 -0500 To: Linac-eng@plato.aristotle.net Subject: RE:Electa linac: water temperature calibration. Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.McGee@lvh.com X-Internal-ID: 3C9E1EDC00002526 Date: Mon, 25 Mar 2002 14:54:00 -0500 To: Linac-eng@plato.aristotle.net Subject: RE:Electa linac: water temperature calibration. Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk According to the precise manual, set temp probe on manifold and wait for probe to stabilize. Then set cal item 1 to 223 and enter temp in Celsius into cal value. Verify screen readings have changed, then command set limit high to 35.00 and limit low to 10.00. Delete cal item 1 and SAVE. I do believe it is normal to servo at 29. My machine does the same. Last but not least, I have been told by many Elekta techs not to grease the leadscrew. The grease will attract dust and dirt and cause more problems than its worth. My thinking is metal against metal needs grease especially with IMRT. I check the grease on mine every 6 months. If they need it then I grease lightly. I have been told that Bostik puts out a product called "Never Seize". This line of grease has a "nuclear grade". I just ordered some from my local fastener vendor. Hope this helps. John McGee John and Dorothy Morgan Cancer Center Lehigh Valley Hospital Allentown,PA. 18105 610-402-0729 Please note that if you received this message in error,you are hereby notified that any dissemination of this communication is strictly prohibited. Please notify me immediately by reply e-mail and delete all copies of the original message. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 26 09:40:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pmVN-00058X-00; Tue, 26 Mar 2002 09:40:33 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7830811131A; Tue, 26 Mar 2002 10:20:20 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA01620 for linac-eng-list; Tue, 26 Mar 2002 03:08:03 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA01613 for ; Tue, 26 Mar 2002 03:07:39 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id 113431112F2; Tue, 26 Mar 2002 08:12:16 +0100 (MET) Received: from (kanon.localdomain.fake) [131.211.145.47] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pkV0-0004vl-00; Tue, 26 Mar 2002 07:32:02 +0100 Received: from kok by kanon.localdomain.fake with local (Exim 3.16 #1 (Debian)) id 16pm4w-0000FH-00; Tue, 26 Mar 2002 09:13:14 +0100 To: John.McGee@lvh.com Cc: Linac-eng@plato.aristotle.net In-reply-to: (John.McGee@lvh.com) Subject: Re: Electa linac: water temperature calibration. From: Jan Kok Message-Id: Date: Tue, 26 Mar 2002 09:13:14 +0100 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: John.McGee@lvh.com Cc: Linac-eng@plato.aristotle.net In-reply-to: (John.McGee@lvh.com) Subject: Re: Electa linac: water temperature calibration. From: Jan Kok Date: Tue, 26 Mar 2002 09:13:14 +0100 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk hello John, We use the Bostik "nuclear grade" but not for our mlc's (don't know why?). A thing to look at when you are doing imrt is the drive belts. They tend to lose their teeth. regards, Jan kok 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 26 09:40:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pmVi-00058d-00; Tue, 26 Mar 2002 09:40:54 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6A504111319; Tue, 26 Mar 2002 10:20:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA01532 for linac-eng-list; Tue, 26 Mar 2002 03:02:30 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA01528 for ; Tue, 26 Mar 2002 03:02:25 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Tue, 26 Mar 2002 10:01:23 +0100 Message-ID: <9D894AB8D748D3118A1800508B073AE601A492A1@CLV4> From: Lindroth Bernt MFT CLV To: "'Rozenblat, Alex'" Cc: "'Linac-eng'" Subject: SV: Electa linac: water temperature calibration. Date: Tue, 26 Mar 2002 10:01:21 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA01529 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Lindroth Bernt MFT CLV To: "'Rozenblat, Alex'" Cc: "'Linac-eng'" Subject: SV: Electa linac: water temperature calibration. Date: Tue, 26 Mar 2002 10:01:21 +0100 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA01529 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello Alex! I just checked with the MLC PM instruction for lubrication of carriage leadscrews. Superlube is the "magic stuff". If You order it from Varian the partnumber is, p/n 88-299524-00. We have Varian machines so I can´t help You with Electa-questions. All the best from Sweden. Bernt Lindroth, Vaxjo Centralhospital, Sweden. -----Ursprungligt meddelande----- Från: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] Skickat: den 25 mars 2002 17:11 Till: 'linac' Ämne: Electa linac: water temperature calibration. Hello, colleagues I am relatively green with Electa machines (not like I am trying to find any excuse) that's why I am eager to try everything myself. We recently updated our Electas to RDT desktop version. I tried to do water temperature calibration according to my understanding of old system calibration procedure - and failed. When I introduced proper temperature on "Calibration page" (Cal value) my temperature began to oscillate and did not stop after 5 minutes, so I brought part10 of Item223 (Wat. Temp) back to original value and temp. stabilised right away. But it's not the temp. I want to see on my screen. Second question. I could not find how actually to set up water temp. for servo to follow. Manual requires 30 degrees and my machine servos around 29 (at least it reports 29). It's not big deal but still I'd like to know how to do this. Third, not related, question. Greasing of MLC leadscrew. We bought this grease in syringe from Electa. May be somebody knows a substitution or second source? I scanned through J.Kok's website but did not find answers. Thank you in advance, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Mar 26 18:21:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pudD-0008IZ-00; Tue, 26 Mar 2002 18:21:11 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9916A1112F4; Tue, 26 Mar 2002 19:01:20 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA22709 for linac-eng-list; Tue, 26 Mar 2002 11:45:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA22702 for ; Tue, 26 Mar 2002 11:45:24 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 26 Mar 2002 12:44:43 -0500 Message-ID: From: "Rozenblat, Alex" To: "'linac'" Subject: Again about water on Electas. Date: Tue, 26 Mar 2002 12:44:39 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'linac'" Subject: Again about water on Electas. Date: Tue, 26 Mar 2002 12:44:39 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello, all Thank you to all who replied to my first message, though so far I did not get any extra info which I did not know before. Let me put it differently: 1. Don't send me procedure, please - I have it! The trouble is it does not work on my linac. May be somebody will try (for experiment sake - that's my unstoppable curiosity talks) to implement this procedure of water temp. calibration (RTD version only!) and send me result. May be it's my machine or may be it's me. I need to make it clear that this servo works. Very simple question: how do you, guys, know that your servo works - the only way to prove it is to see real change when you set up new temperature - NOT of WATER but servo point. I know how to deceive system by using part 10 - "Cal. offset". I need to know that system really does what it's supposed to do - NOT JUST REFLECTS ON THE SCREEN SOME ARTIFICIAL and STABLE TEMPERATURE WHICH IS (OR IS NOT) LINKED TO REAL. 2. I know about affect of temp. on conditions of linac, I know rule "don't fix that works", I have 20+ years experience with linacs - I am "green" with Electas. It's just my personality to understand thoroughly what I am doing or want to do. 3. I am slightly surprised that neither Jan nor Electa rep replied to me - I don't believe they don't know. Come on, guys (in North America it includes ladies as well), help me out, don't give up on me. Especially European colleagues - Philips linacs service is big in Europe. That's what I've been told. Sincere, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From kok@radth.ruu.nl Tue Mar 26 07:32:02 2002 Received: from (kanon.localdomain.fake) [131.211.145.47] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16pkV0-0004vl-00; Tue, 26 Mar 2002 07:32:02 +0100 Received: from kok by kanon.localdomain.fake with local (Exim 3.16 #1 (Debian)) id 16pm4w-0000FH-00; Tue, 26 Mar 2002 09:13:14 +0100 To: John.McGee@lvh.com CC: Linac-eng@plato.aristotle.net In-reply-to: (John.McGee@lvh.com) Subject: Re: Electa linac: water temperature calibration. From: Jan Kok Message-Id: Sender: Jan Kok Date: Tue, 26 Mar 2002 09:13:14 +0100 *** EOOH *** To: John.McGee@lvh.com CC: Linac-eng@plato.aristotle.net In-reply-to: (John.McGee@lvh.com) Subject: Re: Electa linac: water temperature calibration. From: Jan Kok Sender: Jan Kok Date: Tue, 26 Mar 2002 09:13:14 +0100 hello John, We use the Bostik "nuclear grade" but not for our mlc's (don't know why?). A thing to look at when you are doing imrt is the drive belts. They tend to lose their teeth. regards, Jan kok 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 27 09:32:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16q8rY-0002R7-00; Wed, 27 Mar 2002 09:32:56 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB7AF1112F3; Wed, 27 Mar 2002 10:13:03 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id DAA12878 for linac-eng-list; Wed, 27 Mar 2002 03:00:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA12874 for ; Wed, 27 Mar 2002 03:00:22 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id DA2161112F3; Wed, 27 Mar 2002 09:57:25 +0100 (MET) Received: from (kriek.radcl.ruu.nl) [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16q8cO-0002MA-00; Wed, 27 Mar 2002 09:17:16 +0100 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 27 Mar 02 09:58:37 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 27 Mar 02 09:58:17 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "'linac'" , "Rozenblat, Alex" Date: Wed, 27 Mar 2002 09:58:10 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Again about water on Electas. In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "'linac'" , "Rozenblat, Alex" Date: Wed, 27 Mar 2002 09:58:10 +0100 Content-type: text/plain; charset=US-ASCII Subject: Re: Again about water on Electas. In-reply-to: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Alex, The drawing you want to look at is 4513 330 7044 From this you can see that item 223 (water temp) is one of the inputs to item 278 (water ctrl). It is this item that controls the water valve and hence the temperature. What is the difference between the measured temperature of the manifold, and the readback value? (ie is there a SIGNIFICANT difference between the readback and an independant thermocouple applied to the manifold). As for checking that the servo is working, does the valve open and close? If so then it must be servoing. Alternatively, secure a thermocouple to the manifold, and check the max/min during a working day. Elekta Linacs are very software orientated, and therefore to understand them you have to start thinking more like a programmer than (I suspect) other manufacturers machines require. btw: Your last remark was a little bit off. Stuart From: "Rozenblat, Alex" To: "'linac'" Subject: Again about water on Electas. Date sent: Tue, 26 Mar 2002 12:44:39 -0500 > > Hello, all > > Thank you to all who replied to my first message, though so far I did not > get any extra info which I did not know before. > > Let me put it differently: > > 1. Don't send me procedure, please - I have it! The trouble is it does not > work on my linac. May be somebody will try (for experiment sake - that's > my unstoppable curiosity talks) to implement this procedure of water temp. > calibration (RTD version only!) and send me result. May be it's my machine > or may be it's me. I need to make it clear that this servo works. Very > simple question: how do you, guys, know that your servo works - the only > way to prove it is to see real change when you set up new temperature - > NOT of WATER but servo point. I know how to deceive system by using part > 10 - "Cal. offset". I need to know that system really does what it's > supposed to do - NOT JUST REFLECTS ON THE SCREEN SOME ARTIFICIAL and > STABLE TEMPERATURE WHICH IS (OR IS NOT) LINKED TO REAL. > > 2. I know about affect of temp. on conditions of linac, I know rule "don't > fix that works", I have 20+ years experience with linacs - I am "green" > with Electas. It's just my personality to understand thoroughly what I am > doing or want to do. > > 3. I am slightly surprised that neither Jan nor Electa rep replied to me - > I don't believe they don't know. > > > Come on, guys (in North America it includes ladies as well), help me out, > don't give up on me. Especially European colleagues - Philips linacs > service is big in Europe. That's what I've been told. > > > Sincere, > > Alex Rozenblat > TSRCC, Toronto Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 27 21:01:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qJbt-0000C0-00; Wed, 27 Mar 2002 21:01:29 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 14C2A1112F3; Wed, 27 Mar 2002 21:41:34 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA19505 for linac-eng-list; Wed, 27 Mar 2002 14:12:25 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web11607.mail.yahoo.com (web11607.mail.yahoo.com [216.136.172.59]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA19501 for ; Wed, 27 Mar 2002 14:12:24 -0600 (CST) Message-ID: <20020327201220.99702.qmail@web11607.mail.yahoo.com> Received: from [66.57.101.51] by web11607.mail.yahoo.com via HTTP; Wed, 27 Mar 2002 12:12:20 PST Date: Wed, 27 Mar 2002 12:12:20 -0800 (PST) From: Ronnie Relyea Subject: Anybody out there? To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 27 Mar 2002 12:12:20 -0800 (PST) From: Ronnie Relyea Subject: Anybody out there? To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello everyone, I will quote Peter, Paul and Mary, "Where have all the linac questions gone?" I'v only received 3 or 4 questions regarding Elekta water temp problems this whole week. Whats up with that? Is everybody experiencing the same problem or has the open closed issue taken effect(closed). Ron __________________________________________________ Do You Yahoo!? Yahoo! Movies - coverage of the 74th Academy Awards(r) http://movies.yahoo.com/ 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 27 22:02:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qKYU-0000Et-00; Wed, 27 Mar 2002 22:02:02 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D2E1D1112F3; Wed, 27 Mar 2002 22:42:08 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA28317 for linac-eng-list; Wed, 27 Mar 2002 15:24:12 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA28312 for ; Wed, 27 Mar 2002 15:24:10 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KFV134G5RA000I6D@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 27 Mar 2002 16:25:02 -0500 (EST) Date: Wed, 27 Mar 2002 16:20:20 -0500 From: "Peter E. Vitali" Subject: Re: Anybody out there? To: Ronnie Relyea Cc: linac-eng@plato.aristotle.net Message-id: <3CA23781.2D81079F@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <20020327201220.99702.qmail@web11607.mail.yahoo.com> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 27 Mar 2002 16:20:20 -0500 From: "Peter E. Vitali" Subject: Re: Anybody out there? To: Ronnie Relyea Cc: linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Just Quite: Received your message via linac-eng. Got some spam today. Pete Vitali 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 27 23:38:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qM43-0000Iu-00; Wed, 27 Mar 2002 23:38:43 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 02A6E1112F3; Thu, 28 Mar 2002 00:18:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA04317 for linac-eng-list; Wed, 27 Mar 2002 17:08:03 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from glsmtp1 (glsmtp1-2.gundluth.org [204.69.147.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA04313 for ; Wed, 27 Mar 2002 17:07:57 -0600 (CST) From: aengstle@gundluth.org Subject: Re: Anybody out there? To: "Peter E. Vitali" Cc: linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.9 November 16, 2001 Message-ID: Date: Wed, 27 Mar 2002 17:09:12 -0600 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.9a |January 7, 2002) at 03/27/2002 05:11:11 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: aengstle@gundluth.org Subject: Re: Anybody out there? To: "Peter E. Vitali" Cc: linac-eng@plato.aristotle.net Date: Wed, 27 Mar 2002 17:09:12 -0600 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.9a |January 7, 2002) at 03/27/2002 05:11:11 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I'm still here (I think). Seem to get more replies than original messages lately. The spam seems to get through fine yet. Alan Engstler "Peter E. Vitali" To: Ronnie Relyea Sent by: cc: linac-eng@plato.aristotle.net owner-linac-eng@plato.ar Subject: Re: Anybody out there? istotle.net 03/27/02 03:20 PM Just Quite: Received your message via linac-eng. Got some spam today. Pete Vitali 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Mar 27 23:39:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qM5B-0000Iz-00; Wed, 27 Mar 2002 23:39:53 +0100 Received: from plato.aristotle.net (unknown [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1220B1112F3; Thu, 28 Mar 2002 00:19:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA01660 for linac-eng-list; Wed, 27 Mar 2002 16:49:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA01652 for ; Wed, 27 Mar 2002 16:49:46 -0600 (CST) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g2RMnIt26149; Wed, 27 Mar 2002 15:49:18 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.22.114]) by icelus.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g2RMnOs06058; Wed, 27 Mar 2002 15:49:24 -0700 (MST) Message-ID: <3CA24C2B.42ACC845@cancerboard.ab.ca> Date: Wed, 27 Mar 2002 15:48:11 -0700 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: Linac List Subject: Job Opening Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 27 Mar 2002 15:48:11 -0700 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Accept-Language: en To: Linac List Subject: Job Opening Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have an opening for a Technical Equipment Officer in our Medical Physics department. We presently service a Theratron 780C, 7 Varian Linacs, a Ximatron CX and two AcQsim CT units. We have 6 MLC systems which includes 52, 80 and 120 leaf MLC and 6 EPI's including one ASi cassette. Our RV system is Varis Gen 6 and all of our linacs are running 6.2 software with auto field sequencing and custom coding. We have a new CL21EX on order for June 2002 to go into one of two empty vaults. You would be working with three additional TEO's. Our shop is relatively well equipped with a panoramic view of the Bow River valley. We have a large and complete machine shop staffed by two machinists. For additional information see the corporate website: http://www.cancerboard.ab.ca/ If interested please forward a resume quoting competition # ACB 02 C-41 and position # 524546. Thank you. -- Kurt Knibutat Sr Technical Equipment Officer Tom Baker Cancer Centre Medical Physics 1331 - 29 St. NW Calgary AB T2N 4N2 Canada (403) 670-1089 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 04:18:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qQR3-0000Qy-00; Thu, 28 Mar 2002 04:18:45 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 92B8F1112F3; Thu, 28 Mar 2002 04:58:50 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA25189 for linac-eng-list; Wed, 27 Mar 2002 21:42:01 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from main.ismi.net (main.ismi.net [206.31.56.7]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA25182 for ; Wed, 27 Mar 2002 21:42:00 -0600 (CST) Received: from garyryan (hi1hwl1-008.ismi.net [207.51.180.13]) by main.ismi.net (8.9.0/8.9.0) with SMTP id WAA03445; Wed, 27 Mar 2002 22:33:05 -0500 (EST) Message-ID: <001101c1d60b$c40c2880$0db433cf@garyryan> From: "Gary Ryan" To: "Peter E. Vitali" , "Ronnie Relyea" Cc: References: <20020327201220.99702.qmail@web11607.mail.yahoo.com> <3CA23781.2D81079F@yale.edu> Subject: Re: Anybody out there? Date: Wed, 27 Mar 2002 22:50:54 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Gary Ryan" To: "Peter E. Vitali" , "Ronnie Relyea" Cc: Subject: Re: Anybody out there? Date: Wed, 27 Mar 2002 22:50:54 -0500 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Ditto Gary Ryan ----- Original Message ----- From: "Peter E. Vitali" To: "Ronnie Relyea" Cc: Sent: Wednesday, March 27, 2002 4:20 PM Subject: Re: Anybody out there? > Just Quite: > > Received your message via linac-eng. Got some spam today. > > > Pete Vitali > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 08:35:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qURJ-0001qV-00; Thu, 28 Mar 2002 08:35:17 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4AD161112F4; Thu, 28 Mar 2002 09:15:22 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA03975 for linac-eng-list; Thu, 28 Mar 2002 01:58:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA03971 for ; Thu, 28 Mar 2002 01:58:31 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16qUnm-0006VP-00; Thu, 28 Mar 2002 07:58:30 +0000 Received: from relay.nhs.uk (194.62.42.143) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3C811D7E0023E486 for linac-eng@plato.aristotle.net; Thu, 28 Mar 2002 07:58:30 +0000 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C8D4A87001799C9 for linac-eng@plato.aristotle.net; Thu, 28 Mar 2002 07:58:29 +0000 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 07:57:58 -0000 Message-ID: <37106221CAA3D511AC1800508BD316030873A3@OBERON> From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: RE: Anybody out there? Date: Thu, 28 Mar 2002 07:58:04 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA03972 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: RE: Anybody out there? Date: Thu, 28 Mar 2002 07:58:04 -0000 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA03972 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I thought it was only porn on the list these days. Today for the first time in weeks I have not got any, hopefully we can get back to Linac matters. Brian -----Original Message----- From: Ronnie Relyea [mailto:ron_29615@yahoo.com] Sent: 27 March 2002 20:12 To: linac-eng@plato.aristotle.net Subject: Anybody out there? Hello everyone, I will quote Peter, Paul and Mary, "Where have all the linac questions gone?" I'v only received 3 or 4 questions regarding Elekta water temp problems this whole week. Whats up with that? Is everybody experiencing the same problem or has the open closed issue taken effect(closed). Ron __________________________________________________ Do You Yahoo!? Yahoo! Movies - coverage of the 74th Academy Awards(r) http://movies.yahoo.com/ 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 15:20:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qalR-0004XL-00; Thu, 28 Mar 2002 15:20:29 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 641481112F3; Thu, 28 Mar 2002 16:00:33 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA19441 for linac-eng-list; Thu, 28 Mar 2002 08:32:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA19437 for ; Thu, 28 Mar 2002 08:32:44 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 09:32:01 -0500 Message-ID: From: "Rozenblat, Alex" To: "'linac'" Subject: Suggestion Date: Thu, 28 Mar 2002 09:32:00 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'linac'" Subject: Suggestion Date: Thu, 28 Mar 2002 09:32:00 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:08:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qbVy-0004x0-00; Thu, 28 Mar 2002 16:08:34 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B1E3B1112F3; Thu, 28 Mar 2002 16:48:38 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA22678 for linac-eng-list; Thu, 28 Mar 2002 09:34:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA22673 for ; Thu, 28 Mar 2002 09:34:21 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16qbut-00031a-00; Thu, 28 Mar 2002 15:34:19 +0000 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C8128440020CF90 for linac-eng@plato.aristotle.net; Thu, 28 Mar 2002 15:34:19 +0000 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C92086F001E12A1 for linac-eng@plato.aristotle.net; Thu, 28 Mar 2002 15:34:19 +0000 X-Internal-ID: 3C9ADCFD00022C04 Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 28 Mar 2002 15:30:13 +0000 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 15:34:49 -0000 Message-ID: <4BD1673C955CD41182DA00508BACF2DF01391CAA@YGC-MAIL> From: "Carfoot, Sidney" To: "'Linac Eng'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 15:34:48 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3C9ADCFD00022C04 From: "Carfoot, Sidney" To: "'Linac Eng'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 15:34:48 -0000 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Varian only. But have Siemens and Electa/Philips experience. Sid Carfoot Glan Clywd Hospital Wales UK > -----Original Message----- > From: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] > Sent: 28 March 2002 14:32 > To: 'linac' > Subject: Suggestion > > > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service > - > name only not quantity - it would give us brake down of the list > population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:10:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qbXq-0004ym-00; Thu, 28 Mar 2002 16:10:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 26F731112F3; Thu, 28 Mar 2002 16:50:34 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA23089 for linac-eng-list; Thu, 28 Mar 2002 09:40:05 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA23085 for ; Thu, 28 Mar 2002 09:40:04 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KFW3CWNL5G000K0H@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Thu, 28 Mar 2002 10:40:58 -0500 (EST) Date: Thu, 28 Mar 2002 10:36:39 -0500 From: "Peter E. Vitali" Subject: Re: Suggestion To: "Rozenblat, Alex" Cc: "'linac'" Message-id: <3CA3385E.939DD846@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 10:36:39 -0500 From: "Peter E. Vitali" Subject: Re: Suggestion To: "Rozenblat, Alex" Cc: "'linac'" Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Pete Vitali Yale New Haven Hospital Varian 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:13:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qbb2-0004za-00; Thu, 28 Mar 2002 16:13:48 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AB56B1112F3; Thu, 28 Mar 2002 16:53:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA23200 for linac-eng-list; Thu, 28 Mar 2002 09:42:37 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.radonc.musc.edu (xchange.RadOnc.MUSC.EDU [128.23.55.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA23195 for ; Thu, 28 Mar 2002 09:42:36 -0600 (CST) Received: by xchange.RadOnc.MUSC.EDU with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 10:42:04 -0500 Message-ID: <0758E63D5DEC3B458FF43D068F1CC736015938@xchange.RadOnc.MUSC.EDU> From: "Fort, Don" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 10:41:56 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Fort, Don" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 10:41:56 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Not seeing Steven's response for MUSC here, Varian -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thursday, March 28, 2002 9:32 AM To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:31:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qbsP-000597-00; Thu, 28 Mar 2002 16:31:45 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CAC081112F4; Thu, 28 Mar 2002 17:11:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA24381 for linac-eng-list; Thu, 28 Mar 2002 09:57:46 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA24376 for ; Thu, 28 Mar 2002 09:57:45 -0600 (CST) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g2SFvNt05156; Thu, 28 Mar 2002 08:57:24 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.249.25]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g2SFvVJ19415; Thu, 28 Mar 2002 08:57:31 -0700 (MST) Message-ID: <3CA33E51.CD65EA87@cancerboard.ab.ca> Date: Thu, 28 Mar 2002 09:01:21 -0700 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: "Rozenblat, Alex" Cc: "'linac'" Subject: Linear accelerators serviced References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 09:01:21 -0700 From: Len Johnson X-Accept-Language: en To: "Rozenblat, Alex" Cc: "'linac'" Subject: Linear accelerators serviced Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Alex: All Varian: four H.E, three L.E., three Portal-vision, three MLCs. Lots of spam. Cheers. Len "Rozenblat, Alex" wrote: > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service - > name only not quantity - it would give us brake down of the list population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:31:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qbsP-000599-00; Thu, 28 Mar 2002 16:31:45 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AF1781112F3; Thu, 28 Mar 2002 17:11:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA24287 for linac-eng-list; Thu, 28 Mar 2002 09:56:51 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA24270 for ; Thu, 28 Mar 2002 09:56:49 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Thu, 28 Mar 2002 09:56:52 -0600 Message-ID: From: "Turner, Guy" To: "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 09:56:51 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 09:56:51 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I service all Varian: 1 CL2300C/D, 1 CL21EX, 1 6EX and two Ximatron simulators. -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thursday, March 28, 2002 8:32 AM To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:41:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qc1S-0005Cx-00; Thu, 28 Mar 2002 16:41:06 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9A6DA1112F3; Thu, 28 Mar 2002 17:21:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA25293 for linac-eng-list; Thu, 28 Mar 2002 10:09:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhsexc1.bhs.org (springfield.bhs.org [141.154.134.25]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA25289 for ; Thu, 28 Mar 2002 10:09:47 -0600 (CST) Message-Id: <200203281609.KAA25289@plato.aristotle.net> Received: by BHSEXC1 with Internet Mail Service (5.5.2650.21) id ; Thu, 28 Mar 2002 10:57:36 -0500 From: "Patnaude, Peter" To: "Rozenblat, Alex" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 11:09:00 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patnaude, Peter" To: "Rozenblat, Alex" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 11:09:00 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk siemens 6740 , varian 21ex , colbalt 780c , x sim varian ---------- From: Rozenblat, Alex To: 'linac' Subject: Suggestion Date: Thursday, March 28, 2002 9:32AM Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:41:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qc1r-0005D5-00; Thu, 28 Mar 2002 16:41:31 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A3D571112F3; Thu, 28 Mar 2002 17:21:35 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA25234 for linac-eng-list; Thu, 28 Mar 2002 10:08:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA25229 for ; Thu, 28 Mar 2002 10:08:52 -0600 (CST) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Thu, 28 Mar 2002 09:08:13 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Thu, 28 Mar 2002 09:08:08 -0700 From: "Robert Wood" To: , , Subject: RE: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA25230 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 09:08:08 -0700 From: "Robert Wood" To: , , Subject: RE: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA25230 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have Varian treatment machines some with Portal Vision and MLC some without. Adac Treatment Planning (how many of you get involved with Treatyment planning) Picker/Marconni/Phillips CT SCanner With Voxel Q Philps Ortho Voltage Varian HDR This message is sent out to indicate machine types, let people know I am still here, and that I love the lack of spam. >>> "Fort, Don" 03/28/02 08:41AM >>> Not seeing Steven's response for MUSC here, Varian -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thursday, March 28, 2002 9:32 AM To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto Any views or opinions expressed in this email (unless otherwise stated) are mine and do not reflect the opinions or policies of any other person or organization. This email may contain personel or private information and the foregoing is not intended to be a legally binding or legally effective electronic signature. This message may contain legally privileged or confidential information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:44:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qc4s-0005Dp-00; Thu, 28 Mar 2002 16:44:38 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A0E6C1112F3; Thu, 28 Mar 2002 17:24:42 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA25534 for linac-eng-list; Thu, 28 Mar 2002 10:13:50 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA25528 for ; Thu, 28 Mar 2002 10:13:49 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id KAA20579; Thu, 28 Mar 2002 10:10:03 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B8A.0058BC10 ; Thu, 28 Mar 2002 10:09:13 -0600 X-Lotus-FromDomain: MDACC To: "Fort, Don" Cc: "'Rozenblat, Alex'" , "'linac'" Message-ID: <86256B8A.0058BBCB.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 28 Mar 2002 10:11:44 -0600 Subject: RE: Suggestion Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Fort, Don" Cc: "'Rozenblat, Alex'" , "'linac'" Date: Thu, 28 Mar 2002 10:11:44 -0600 Subject: RE: Suggestion Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk MD Anderson Cancer Center Linacs: Varian and Siemens Cobalt: AECL/Theratronics Conventinoal Simulators: Oldelft/Nucletron, Cascade. CTSims: PhilipsMarconiPicker (whatever their name is this week) CTOnRails: GE Orthovoltage: Philips and Pantak Tim Waldron 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 16:59:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcJa-0005IK-00; Thu, 28 Mar 2002 16:59:50 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AAFD41112F3; Thu, 28 Mar 2002 17:39:53 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA26848 for linac-eng-list; Thu, 28 Mar 2002 10:27:21 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imf11bis.bellsouth.net (mail211.mail.bellsouth.net [205.152.58.151]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA26842 for ; Thu, 28 Mar 2002 10:27:19 -0600 (CST) Received: from bellsouth.net ([216.77.62.13]) by imf11bis.bellsouth.net (InterMail vM.5.01.04.05 201-253-122-122-105-20011231) with ESMTP id <20020328162805.BRTX8700.imf11bis.bellsouth.net@bellsouth.net> for ; Thu, 28 Mar 2002 11:28:05 -0500 Message-ID: <3CA3457A.A5FCBE1@bellsouth.net> Date: Thu, 28 Mar 2002 10:31:54 -0600 From: Gil Head X-Mailer: Mozilla 4.77 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: "'linac eng'" Subject: Re: Suggestion References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 10:31:54 -0600 From: Gil Head X-Accept-Language: en To: "'linac eng'" Subject: Re: Suggestion Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk At our facility we have CL2100CD, CL21EX, Cl600, Odelft HP sim, Brachy, Superficial, MLC, PV, and Impac. Gil "Rozenblat, Alex" wrote: > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service - > name only not quantity - it would give us brake down of the list population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto -- "Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself." Mark Twain 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:01:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcLY-0005JB-00; Thu, 28 Mar 2002 17:01:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 26BC71112F3; Thu, 28 Mar 2002 17:41:56 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA26836 for linac-eng-list; Thu, 28 Mar 2002 10:26:57 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from egnhst.org.uk (firewall.egnhst.swest.nhs.uk [195.107.47.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA26830 for ; Thu, 28 Mar 2002 10:26:55 -0600 (CST) From: Mike.West@egnhst.org.uk Received: from secure.secure.egnhst.nhs.uk ([192.168.101.2]) by firewall.egnhst.org.uk with ESMTP id <118087>; Thu, 28 Mar 2002 16:27:12 +0000 Received: from egnhst.org.uk (firewall.egnhst.nhs.uk) by secure.secure.egnhst.nhs.uk (Content Technologies SMTPRS 4.2.10) with ESMTP id ; Thu, 28 Mar 2002 16:26:20 +0000 Received: by egnt03.egnhst.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 16:26:05 -0000 Message-ID: <329AF31B366BD511A2F400010324EEE808B579@egnt03.egnhst.nhs.uk> To: Alex.Rozenblat@tsrcc.on.ca, linac-eng@plato.aristotle.net Subject: RE: Suggestion Date: Thu, 28 Mar 2002 16:25:54 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D675.3BD61C90" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mike.West@egnhst.org.uk To: Alex.Rozenblat@tsrcc.on.ca, linac-eng@plato.aristotle.net Subject: RE: Suggestion Date: Thu, 28 Mar 2002 16:25:54 -0000 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D675.3BD61C90" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1D675.3BD61C90 Content-Type: text/plain; charset="ISO-8859-1" We have 4 Varian Linacs - 2 x 2100cd, 1 x 600c and 1 x 6/100 Happy Easter Mike West Senior Engineer, Cheltenham, UK -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thursday, March 28, 2002 02:32 To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto *** This message has been checked, by EGNHST, no virus found *** This message may contain privileged or confidential information. If you receive this message in error please return it to the sender and delete all copies - thankyou. ------_=_NextPart_001_01C1D675.3BD61C90 Content-Type: text/html; charset="ISO-8859-1" RE: Suggestion

    We have 4 Varian Linacs -  2 x 2100cd, 1 x 600c and 1 x 6/100

    Happy Easter
    Mike West
    Senior Engineer, Cheltenham, UK

    -----Original Message-----
    From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca]
    Sent: Thursday, March 28, 2002 02:32
    To: 'linac'
    Subject: Suggestion



    Hello, everyone

    First of all thank you for the overwhelming response - one message.

    I have a suggestion, of course if you have a minute to spare: can we do a
    fast survey about what types of linac we service. If everyone replies (to
    all, please) to this message with only one info - what does he/she service -
    name only not quantity - it would give us brake down of the list population.
    Would be helpful  to see who stayed after mass exodus caused by issue
    "closed/open". May be it's only Varian list now, or may be - hopefully -
    not.

    My part: in our centre we have Electas, Mevatrons (Siemens), Primuses
    (Siemens).

    Alex Rozenblat,
    TSRCC, Toronto


    *** This message has been checked, by EGNHST, no virus found ***



    This message may contain privileged or confidential information.
    If you receive this message in error please return it to the sender and delete all copies - thankyou.
     ------_=_NextPart_001_01C1D675.3BD61C90-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:14:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcY4-0005L8-00; Thu, 28 Mar 2002 17:14:48 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9CD091112F3; Thu, 28 Mar 2002 17:54:51 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA28030 for linac-eng-list; Thu, 28 Mar 2002 10:38:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA28024 for ; Thu, 28 Mar 2002 10:38:52 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g2SGcpeu174094 for ; Thu, 28 Mar 2002 11:38:51 -0500 Message-ID: <3CA3457F.5A628284@hsc.vcu.edu> Date: Thu, 28 Mar 2002 11:31:59 -0500 From: "Christopher L. Bartee" X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: equipment Content-Type: multipart/mixed; boundary="------------F1E8B283D9EAD573637057F5" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 11:31:59 -0500 From: "Christopher L. Bartee" X-Accept-Language: en To: "linac-eng@plato.aristotle.net" Subject: equipment Content-Type: multipart/mixed; boundary="------------F1E8B283D9EAD573637057F5" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------F1E8B283D9EAD573637057F5 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 5 varian clinacs 1 varian simulator 2 kermath sims 2 120 mlcs 1 80 mlc 1 micro mlc 2 asi pvs 3 liquid pvs 6.1 varis 6.1 pv And of course, anything else with a plug on it. Chris Bartee --------------F1E8B283D9EAD573637057F5 Content-Type: text/x-vcard; charset=us-ascii; name="clbartee.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Christopher L. Bartee Content-Disposition: attachment; filename="clbartee.vcf" begin:vcard n:Bartee;Christopher tel;work:804-628-0977 x-mozilla-html:FALSE org:Virginia Commonwealth University;Department of Radiation Oncology version:2.1 email;internet:Clbartee@hsc.vcu.edu title:Research Associate adr;quoted-printable:;;Medical College of Virginia=0D=0A401 College St;Richmond ;Virginia;23298-0058; fn:Christopher Bartee end:vcard --------------F1E8B283D9EAD573637057F5-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:23:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcgP-0005Mx-00; Thu, 28 Mar 2002 17:23:25 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ED17B1112F3; Thu, 28 Mar 2002 18:03:28 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA28986 for linac-eng-list; Thu, 28 Mar 2002 10:50:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from murphys.services.quay.plus.net ([212.159.14.225]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA28978 for ; Thu, 28 Mar 2002 10:50:23 -0600 (CST) From: jim@northcoast.f9.co.uk Received: (qmail 7754 invoked from network); 28 Mar 2002 16:49:48 -0000 Received: from unknown (HELO gillespies.servers.plus.net) (192.168.227.10) by murphy.services.quay.plus.net with SMTP; 28 Mar 2002 16:49:48 -0000 Received: (qmail 22128 invoked by uid 60001); 28 Mar 2002 16:49:46 -0000 Date: 28 Mar 2002 16:49:46 -0000 To: Alex.Rozenblat@tsrcc.on.ca Subject: RE: Suggestion Reply-To: jim@northcoast.f9.co.uk Cc: linac-eng@plato.aristotle.net X-Mailer: PlusMail Message-ID: <20020328164946.northcoast@force9> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jim@northcoast.f9.co.uk Date: 28 Mar 2002 16:49:46 -0000 To: Alex.Rozenblat@tsrcc.on.ca Subject: RE: Suggestion Reply-To: jim@northcoast.f9.co.uk Cc: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk > We have Varian. Jim Wallace The Princess Royal Hospital Hull England. >Hello, everyone > >First of all thank you for the overwhelming response - one message. > >I have a suggestion, of course if you have a minute to spare: can we do a >fast survey about what types of linac we service. If everyone replies (to >all, please) to this message with only one info - what does he/she service - >name only not quantity - it would give us brake down of the list population. >Would be helpful to see who stayed after mass exodus caused by issue >"closed/open". May be it's only Varian list now, or may be - hopefully - >not. > >My part: in our centre we have Electas, Mevatrons (Siemens), Primuses >(Siemens). > >Alex Rozenblat, >TSRCC, Toronto > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:23:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcgW-0005N0-00; Thu, 28 Mar 2002 17:23:32 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A32E71112F3; Thu, 28 Mar 2002 18:03:35 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA29101 for linac-eng-list; Thu, 28 Mar 2002 10:51:33 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp1.wienkav.at (smtp1.wienkav.at [217.116.64.22]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29096 for ; Thu, 28 Mar 2002 10:51:31 -0600 (CST) Received: from kavcvp01.wienkav.at (kavcvp01.wienkav.at [10.2.11.21]) by smtp1.wienkav.at (8.9.3/8.9.3/Debian 8.9.3-21) with SMTP id RAA04509 for ; Thu, 28 Mar 2002 17:50:59 +0100 Received: from smtp1.wienkav.at ([10.2.11.23]) by kavcvp01.wienkav.at (NAVGW 2.5.1.19) with SMTP id M2002032817515706271 for ; Thu, 28 Mar 2002 17:51:57 +0100 Received: from xcbh1.xund.magwien.gv.at ([10.2.2.109]) by smtp1.wienkav.at (8.9.3/8.9.3/Debian 8.9.3-21) with ESMTP id RAA04505 for ; Thu, 28 Mar 2002 17:50:59 +0100 Received: by xcbh1.xund.magwien.gv.at with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 17:50:59 +0100 Message-ID: <1F9F981EFAA2D311AF7C00508B5D54F9026474C4@xcsmz1.xund.magwien.gv.at> From: =?iso-8859-1?Q?B=FCchler_Felix?= To: "'linac-eng@plato.aristotle.net'" Subject: =?iso-8859-1?Q?Alex=B4s_Suggestion=2C_=22lost=22_postings?= Date: Thu, 28 Mar 2002 17:50:57 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D678.BBE3E9A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: =?iso-8859-1?Q?B=FCchler_Felix?= To: "'linac-eng@plato.aristotle.net'" Subject: =?iso-8859-1?Q?Alex=B4s_Suggestion=2C_=22lost=22_postings?= Date: Thu, 28 Mar 2002 17:50:57 +0100 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D678.BBE3E9A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1D678.BBE3E9A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi all, 1) we have Siemens - Mevatron 2) lost postings to the list: I just got this message rejected (unknown host). It seems, that since my last posting the email-address = has been changed: form linac-eng@plato1.aristotle.net to = linac-eng@plato.aristotle.net . Maybe this is the reason for = some of the "lost" postings ... =20 Felix B=FCchler Danube-Hospital Vienna, Austria =20 ------_=_NextPart_001_01C1D678.BBE3E9A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

    Hi = all,

    1)       we have Siemens - Mevatron

    2)       lost postings to the list: I just got this message rejected (unknown host). = It seems, that since my last posting =A0the email-address has been = changed: form linac-eng@plato1.aristotl= e.net to linac-eng@plato.aristotle.= net . Maybe this is the reason for some of the "lost" postings = ...

     

    Fel= ix B=FCchler

    Danube-Hospital

    Vie= nna, Austria

     

    ------_=_NextPart_001_01C1D678.BBE3E9A0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:32:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcoy-0005Ns-00; Thu, 28 Mar 2002 17:32:16 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6C9251112F3; Thu, 28 Mar 2002 18:12:19 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA29763 for linac-eng-list; Thu, 28 Mar 2002 10:58:30 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29754 for ; Thu, 28 Mar 2002 10:58:29 -0600 (CST) From: Bob.Tonks@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g2SGvoD16618; Thu, 28 Mar 2002 11:57:50 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B8A.005C61FD ; Thu, 28 Mar 2002 11:49:03 -0500 X-Lotus-FromDomain: LRCC To: "Rozenblat, Alex" , linac-eng@plato.aristotle.net Message-ID: <85256B8A.005C618F.00@mail.lrcc.on.ca> Date: Thu, 28 Mar 2002 11:49:02 -0500 Subject: Re: Suggestion Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Bob.Tonks@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Rozenblat, Alex" , linac-eng@plato.aristotle.net Date: Thu, 28 Mar 2002 11:49:02 -0500 Subject: Re: Suggestion Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Here we have Varian 2100's, Varian 600C, Varian Ximatron's, Picker/Marconi/Philips CT Sim, 52/80 MLC's, Portal Vision's, and a Pantak SXT150 superficial. Using Varia Gen 6. As you can tell mostly Varian. Bob Tonks London Regional Cancer Centre London, Ontario, Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:33:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcpr-0005Nx-00; Thu, 28 Mar 2002 17:33:11 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9C8D21112F3; Thu, 28 Mar 2002 18:13:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA00314 for linac-eng-list; Thu, 28 Mar 2002 11:01:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from uky.edu (smtp1.uky.edu [128.163.2.82]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA00309 for ; Thu, 28 Mar 2002 11:01:22 -0600 (CST) Received: from UKCMC-MGUKUZYJS dfarrer@uky.edu [128.163.65.183] by uky.edu with Novell NIMS $Revision: 2.88 $ on Novell NetWare; Thu, 28 Mar 2002 12:00:53 -0500 Message-Id: <3.0.2.32.20020328120115.00db6150@pop.uky.edu> X-Sender: dfarrer@pop.uky.edu X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.2 (32) Date: Thu, 28 Mar 2002 12:01:15 -0500 To: linac-eng@plato.aristotle.net From: Dan Farrer Subject: Re: Suggestion In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: dfarrer@pop.uky.edu Date: Thu, 28 Mar 2002 12:01:15 -0500 To: linac-eng@plato.aristotle.net From: Dan Farrer Subject: Re: Suggestion In-Reply-To: Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello Everyone, I service 3 HE Varian linacs, 1 GE Saturne, 1 Varian simulator, 1 Kermath simulator. Dan Farrer U of KY Medical Center At 09:32 AM 3/28/2002 -0500, you wrote: > >Hello, everyone > >First of all thank you for the overwhelming response - one message. > >I have a suggestion, of course if you have a minute to spare: can we do a >fast survey about what types of linac we service. If everyone replies (to >all, please) to this message with only one info - what does he/she service - >name only not quantity - it would give us brake down of the list population. >Would be helpful to see who stayed after mass exodus caused by issue >"closed/open". May be it's only Varian list now, or may be - hopefully - >not. > >My part: in our centre we have Electas, Mevatrons (Siemens), Primuses >(Siemens). > >Alex Rozenblat, >TSRCC, Toronto > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:37:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qcu8-0005O8-00; Thu, 28 Mar 2002 17:37:36 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 978421112F3; Thu, 28 Mar 2002 18:17:39 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA00817 for linac-eng-list; Thu, 28 Mar 2002 11:04:33 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ntcomm1.harringtoncc.org ([207.19.3.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA00808 for ; Thu, 28 Mar 2002 11:04:31 -0600 (CST) Received: from rsmith ([192.168.1.64]) by ntcomm1.harringtoncc.org (Post.Office MTA v3.1.2 release (PO205-101c) ID# 0-49614U200L2S100) with SMTP id AAA498; Thu, 28 Mar 2002 11:04:11 -0600 Message-Id: <3.0.6.32.20020328110539.007a5d40@192.168.1.1> X-Sender: rsmith@192.168.1.1 X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Thu, 28 Mar 2002 11:05:39 -0600 To: "Rozenblat, Alex" , "'linac'" From: rsmith@harringtoncc.org (Rick Smith) Subject: Re: Suggestion In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: rsmith@192.168.1.1 Date: Thu, 28 Mar 2002 11:05:39 -0600 To: "Rozenblat, Alex" , "'linac'" From: rsmith@harringtoncc.org (Rick Smith) Subject: Re: Suggestion In-Reply-To: Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian Rick Smith Harrington Cancer Ctr. Amarillo,TX 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:43:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qd0D-0005Oj-00; Thu, 28 Mar 2002 17:43:53 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AAACF1112F3; Thu, 28 Mar 2002 18:23:56 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA02226 for linac-eng-list; Thu, 28 Mar 2002 11:11:10 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dcntmta02.spectrum-health.org ([167.73.110.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA02203 for ; Thu, 28 Mar 2002 11:11:08 -0600 (CST) From: neville.wiles@spectrum-health.org Received: by dcntmta02.spectrum-health.org with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 12:10:36 -0500 Message-ID: <9BA17E080E6CD51195EE0020484023FF9C77CE@dcntmsg03.spectrum-health.org> To: lenj@CancerBoard.ab.ca, Alex.Rozenblat@tsrcc.on.ca Cc: linac-eng@plato.aristotle.net Subject: RE: Linear accelerators serviced Date: Thu, 28 Mar 2002 12:10:59 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org To: lenj@CancerBoard.ab.ca, Alex.Rozenblat@tsrcc.on.ca Cc: linac-eng@plato.aristotle.net Subject: RE: Linear accelerators serviced Date: Thu, 28 Mar 2002 12:10:59 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello, Currently, 1- Primus/MLC, 2-KDS2's, 1-6/100, 1-2100C, 3-Mevasims-s, and sort of 1 Oldelft. At 4 sites within 1.5 hrs of each other. Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org -----Original Message----- From: Len Johnson [mailto:lenj@CancerBoard.ab.ca] Sent: Thursday, March 28, 2002 11:01 AM To: Rozenblat, Alex Cc: 'linac' Subject: Linear accelerators serviced Alex: All Varian: four H.E, three L.E., three Portal-vision, three MLCs. Lots of spam. Cheers. Len "Rozenblat, Alex" wrote: > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service - > name only not quantity - it would give us brake down of the list population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 17:58:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qdEh-0005QE-00; Thu, 28 Mar 2002 17:58:51 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6551E1112F3; Thu, 28 Mar 2002 18:38:54 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA06735 for linac-eng-list; Thu, 28 Mar 2002 11:21:07 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA06713 for ; Thu, 28 Mar 2002 11:21:04 -0600 (CST) From: Bob.Tonks@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g2SHKYD22669 for ; Thu, 28 Mar 2002 12:20:34 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B8A.005E78C3 ; Thu, 28 Mar 2002 12:11:52 -0500 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256B8A.005E786A.00@mail.lrcc.on.ca> Date: Thu, 28 Mar 2002 12:11:51 -0500 Subject: Re: Suggestion Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Bob.Tonks@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Thu, 28 Mar 2002 12:11:51 -0500 Subject: Re: Suggestion Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Here we have Varian 2100's, Varian 600C, Varian Ximatron's, Picker/Marconi/Philips CT Sim, 52/80 MLC's, Portal Vision's, and a Pantak SXT150 superficial. Using Varian Gen 6. As you can tell mostly Varian. Bob Tonks London Regional Cancer Centre London, Ontario, Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 18:26:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qdf5-0005RU-00; Thu, 28 Mar 2002 18:26:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B1FA31112F3; Thu, 28 Mar 2002 19:06:09 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA19863 for linac-eng-list; Thu, 28 Mar 2002 11:52:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA19857 for ; Thu, 28 Mar 2002 11:52:03 -0600 (CST) Received: from health.nb.ca ([10.10.100.49]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with ESMTP id ca for ; Thu, 28 Mar 2002 13:51:31 -0400 Message-ID: <3CA357EF.56C682D5@health.nb.ca> Date: Thu, 28 Mar 2002 13:50:39 -0400 From: andrer@health.nb.ca (Andre Robichaud) Reply-To: andrer@health.nb.ca Organization: DR Georges Dumont Hospital, NB CANADA X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en,pdf MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Subject: RE: Suggestion Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 13:50:39 -0400 From: andrer@health.nb.ca (Andre Robichaud) Reply-To: andrer@health.nb.ca Organization: DR Georges Dumont Hospital, NB CANADA X-Accept-Language: en,pdf To: linac-eng@plato.aristotle.net Subject: RE: Suggestion Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi everyone, I have Siemens'everywhere: 1 M-class mevatron, 1 K-class mevatron, 1 PRIMUS, 1 Mevasim & Polydoros, 1 Stabilipan Ortho voltage, Nucletron LDR & HDR. Not bothered too much by spams. Which reminds me, I have to update my browser plug-ins, I can't see all the pictures! Ha! Andre Robichaud Moncton NB Canada "Rozenblat, Alex" wrote: > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service - > name only not quantity - it would give us brake down of the list population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 18:26:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qdfg-0005Rc-00; Thu, 28 Mar 2002 18:26:44 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 501151112F3; Thu, 28 Mar 2002 19:06:47 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA19263 for linac-eng-list; Thu, 28 Mar 2002 11:50:36 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA19233 for ; Thu, 28 Mar 2002 11:50:32 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA00245; Thu, 28 Mar 2002 11:56:29 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3CA357FA.84FCA35D@scf.sk.ca> Date: Thu, 28 Mar 2002 11:50:51 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Rozenblat, Alex" Cc: "'linac'" Subject: Re: Suggestion References: Content-Type: multipart/mixed; boundary="------------94C7FB19774585217C492D86" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 11:50:51 -0600 From: Chris Barnardo X-Accept-Language: en To: "Rozenblat, Alex" Cc: "'linac'" Subject: Re: Suggestion Content-Type: multipart/mixed; boundary="------------94C7FB19774585217C492D86" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------94C7FB19774585217C492D86 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello Group: Saskatoon Cancer Center, Canada 1 - Varian 21EX with 120 Millenium MLC, AS500 Portal Vision 1 - Philips SL25 1 - Philips SL 75/5 1 - Siemens 6700 1 - Elekta SLS38 Simulator with CT 1 - Philips RT-250 1 - GE CT Scanner "Rozenblat, Alex" wrote: > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service - > name only not quantity - it would give us brake down of the list population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto --------------94C7FB19774585217C492D86 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------94C7FB19774585217C492D86-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 18:30:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qdja-0005Rp-00; Thu, 28 Mar 2002 18:30:46 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 44AA11112F3; Thu, 28 Mar 2002 19:10:49 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA22361 for linac-eng-list; Thu, 28 Mar 2002 11:58:14 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from whses01.wellmont.org (whses01.wellmont.org [151.102.96.168]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA22345 for ; Thu, 28 Mar 2002 11:58:12 -0600 (CST) Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 12:57:34 -0500 Message-ID: <7AF61AA0D5DBD511B2990090274E7316796933@whses02.wellmont.org> From: "Falcinelli, Marc A" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 12:57:27 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Falcinelli, Marc A" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 12:57:27 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk All Varian here. 3 CL-1800s, 1 CL-2100C, 1 CL-21EX, 2 Millennium 120 MLC, 3 Ximatron, and a new HE on the way this summer/fall. -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thursday, March 28, 2002 9:32 AM To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 18:31:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qdkI-0005Ru-00; Thu, 28 Mar 2002 18:31:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DE1881112F3; Thu, 28 Mar 2002 19:11:32 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA23041 for linac-eng-list; Thu, 28 Mar 2002 11:59:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA23037 for ; Thu, 28 Mar 2002 11:59:57 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Thu, 28 Mar 2002 12:59:22 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA8B@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 12:59:21 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 12:59:21 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk > -----Original Message----- > From: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] > Sent: Thursday, March 28, 2002 9:32 AM > To: 'linac' > Subject: Suggestion > > Before the Joint Center at Harvard was dissolved, We did all brands, old, > new, ortho, etc. Like someone said, anything with a plug in it. > Now Varian and Siemens, including old CL-4s to the latest. > Jerry > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service > - > name only not quantity - it would give us brake down of the list > population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 18:41:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qdtW-0005SJ-00; Thu, 28 Mar 2002 18:41:02 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3FF8C1112F3; Thu, 28 Mar 2002 19:21:02 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA27155 for linac-eng-list; Thu, 28 Mar 2002 12:09:36 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scmcmail.st-claire.org ([63.76.91.90]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA27123 for ; Thu, 28 Mar 2002 12:09:33 -0600 (CST) Received: by SCMCMAIL with Internet Mail Service (5.5.2650.21) id ; Thu, 28 Mar 2002 13:08:54 -0500 Message-ID: <567B4C40AC2ED411BB2300B0D021D9BA015D9F4C@SCMCMAIL> From: "Conn, Calvin R." To: linac-eng@plato.aristotle.net Subject: RE:Suggestion Date: Thu, 28 Mar 2002 13:08:54 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Conn, Calvin R." To: linac-eng@plato.aristotle.net Subject: RE:Suggestion Date: Thu, 28 Mar 2002 13:08:54 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian 6/100 Calvin R. Conn > >Hello, everyone > >First of all thank you for the overwhelming response - one message. > >I have a suggestion, of course if you have a minute to spare: can we do >a fast survey about what types of linac we service. If everyone replies >(to all, please) to this message with only one info - what does he/she >service - name only not quantity - it would give us brake down of the >list population. Would be helpful to see who stayed after mass exodus >caused by issue "closed/open". May be it's only Varian list now, or may >be - hopefully - not. > >My part: in our centre we have Electas, Mevatrons (Siemens), Primuses >(Siemens). > >Alex Rozenblat, >TSRCC, Toronto > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 18:52:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qe4I-0005Sg-00; Thu, 28 Mar 2002 18:52:10 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DABF61112F3; Thu, 28 Mar 2002 19:32:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA01652 for linac-eng-list; Thu, 28 Mar 2002 12:19:50 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA01642 for ; Thu, 28 Mar 2002 12:19:49 -0600 (CST) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA444F for ; Thu, 28 Mar 2002 12:16:46 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Thu, 28 Mar 2002 12:19:08 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Thu, 28 Mar 2002 12:19:03 -0600 From: "Stephen Jordan" To: , Cc: Subject: RE: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 12:19:03 -0600 From: "Stephen Jordan" To: , Cc: Subject: RE: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Steve Jordan University of Alabama-Birmingham Varian: 2100C, 2100CD, 21EX (2), all with MLC, Ximatron Nomos: full complement of IMRT Animals Pickamarconi: PQ5000 acqsim 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:19:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qeUu-0005U1-00; Thu, 28 Mar 2002 19:19:40 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E31131112F3; Thu, 28 Mar 2002 19:59:42 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA15500 for linac-eng-list; Thu, 28 Mar 2002 12:47:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA15472 for ; Thu, 28 Mar 2002 12:47:32 -0600 (CST) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Thu, 28 Mar 2002 11:46:59 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 11:46:58 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D075236071A@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Linacs Date: Thu, 28 Mar 2002 11:46:57 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Linacs Date: Thu, 28 Mar 2002 11:46:57 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All, We have: 2 Siemens MD-2's. One with MLC one without 1 Varian 6/100 1 Elekta Precise with RTD and MLC 1 Siemens SimView 3000 Simulator 1 Philips/Marconi/Picker AcqSim CT Now if I only had a brain. Dan Watters University Medical Center Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:20:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qeVG-0005UE-00; Thu, 28 Mar 2002 19:20:02 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DEE301112F3; Thu, 28 Mar 2002 20:00:04 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA13402 for linac-eng-list; Thu, 28 Mar 2002 12:43:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA13360 for ; Thu, 28 Mar 2002 12:43:41 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 28 Mar 2002 18:36:15 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Thu, 28 Mar 2002 10:43:50 -0800 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Equipment Date: Thu, 28 Mar 2002 10:43:47 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Equipment Date: Thu, 28 Mar 2002 10:43:47 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Currently have 4 HE Varian, 2 Simulators, 2 MLC and lots of misc. stuff. One old guy.... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:35:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qek0-0005Ug-00; Thu, 28 Mar 2002 19:35:16 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD59E1112F3; Thu, 28 Mar 2002 20:15:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA22306 for linac-eng-list; Thu, 28 Mar 2002 13:00:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA22283 for ; Thu, 28 Mar 2002 13:00:23 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 13:59:46 -0500 Message-ID: From: "Rozenblat, Alex" To: "'linac'" Subject: Preliminary results. Date: Thu, 28 Mar 2002 13:59:46 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'linac'" Subject: Preliminary results. Date: Thu, 28 Mar 2002 13:59:46 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk RE: suggestion. Hello, everyone Now I got some life. Thank you very much. I thought that everyone will reply to the list (click button "Reply to all") and this will create some lively discussion and some reading material. But it's all right this way too. So far I got 30 replies and they keep coming. After long week-end I will try to find time to summarise info and release it for everyone. As a hint: now I know why Varian questions get lively discussions all the time, put aside LP(M)O. Have a happy Passover and Easter. Regards, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:35:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qek2-0005Uj-00; Thu, 28 Mar 2002 19:35:18 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 81AF91112F3; Thu, 28 Mar 2002 20:15:21 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24448 for linac-eng-list; Thu, 28 Mar 2002 13:04:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (hscemail5.hscs.Virginia.EDU [128.143.176.152]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24426 for ; Thu, 28 Mar 2002 13:04:18 -0600 (CST) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Thu, 28 Mar 2002 14:04:17 -0500 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C1D68B.5B3D9619" Subject: Equipment Disposition-Notification-To: "Orsolini, Joe D" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 28 Mar 2002 14:04:16 -0500 Message-ID: X-MS-Has-Attach: yes Thread-Topic: Equipment Thread-Index: AcHWi1KtJ7WqV0JCEdaGaAAQWl9Aqw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail 2)" X-OriginalArrivalTime: 28 Mar 2002 19:04:17.0212 (UTC) FILETIME=[5BCE27C0:01C1D68B] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C1D68B.5B3D9619" Subject: Equipment Disposition-Notification-To: "Orsolini, Joe D" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 28 Mar 2002 14:04:16 -0500 X-MS-Has-Attach: yes Thread-Topic: Equipment Thread-Index: AcHWi1KtJ7WqV0JCEdaGaAAQWl9Aqw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail 2)" X-OriginalArrivalTime: 28 Mar 2002 19:04:17.0212 (UTC) FILETIME=[5BCE27C0:01C1D68B] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C1D68B.5B3D9619 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable University of Virginia Health System Varian Linacs Kermath Simulator Elekta Linac Elekta Simulator Marconi AcQsim Siemens Stabilipan Giuseppe 'Joe' Orsolini RT =20 Imaging Physics Specialist =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) <>=20 ------_=_NextPart_001_01C1D68B.5B3D9619 Content-Type: text/x-vcard; name="Giuseppe Orsolini RT (E-mail).vcf" Content-Transfer-Encoding: base64 Content-Description: Giuseppe Orsolini RT (E-mail).vcf Content-Disposition: attachment; filename="Giuseppe Orsolini RT (E-mail).vcf" QkVHSU46VkNBUkQNClZFUlNJT046Mi4xDQpOOk9yc29saW5pIFJUO0dpdXNlcHBlDQpGTjpHaXVz ZXBwZSBPcnNvbGluaSBSVCAoRS1tYWlsKQ0KT1JHOlVuaXZlcnNpdHkgb2YgVmlyZ2luaWEgDQpU SVRMRTpJbWFnaW5nIFBoeXNpY3MgU3BlY2lhbGlzdA0KVEVMO1dPUks7Vk9JQ0U6KDQzNCkgOTI0 LTk0MjINClRFTDtQQUdFUjtWT0lDRTooNDM0KSA5NjMtMjIyMA0KVEVMO1dPUks7RkFYOig0MzQp IDk4Mi0zNTIwDQpBRFI7V09SSztFTkNPRElORz1RVU9URUQtUFJJTlRBQkxFOjs7UmFkaW9sb2dp Y2FsIFBoeXNpY3MgRGl2aXNpb249MEQ9MEFCb3ggODAwMzc1O0NoYXJsb3R0ZXN2aWxsZTtWaXJn aW5pYTsyMjk9DQowOC0wMzc1DQpMQUJFTDtXT1JLO0VOQ09ESU5HPVFVT1RFRC1QUklOVEFCTEU6 UmFkaW9sb2dpY2FsIFBoeXNpY3MgRGl2aXNpb249MEQ9MEFCb3ggODAwMzc1PTBEPTBBQ2hhcmxv dHRlc3ZpbGxlLCBWaXJnaW5pYT0NCiAyMjkwOC0wMzc1DQpFTUFJTDtQUkVGO0lOVEVSTkVUOm9y c29saW5pQHZpcmdpbmlhLmVkdQ0KUkVWOjIwMDIwMTA5VDE2MDk0MFoNCkVORDpWQ0FSRA0K ------_=_NextPart_001_01C1D68B.5B3D9619-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:40:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qeol-0005Ut-00; Thu, 28 Mar 2002 19:40:11 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A253A1112F3; Thu, 28 Mar 2002 20:20:13 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA25565 for linac-eng-list; Thu, 28 Mar 2002 13:06:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.lha.org ([170.122.200.53]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA25543 for ; Thu, 28 Mar 2002 13:06:27 -0600 (CST) Received: FROM exchange.lha.org BY exchange.lha.org ; Thu Mar 28 14:05:53 2002 -0500 Received: by exchange.lha.org with Internet Mail Service (5.5.2650.21) id ; Thu, 28 Mar 2002 14:05:51 -0500 Message-ID: <3D998785DA22D611B68D00A0C9CDB0C00123B274@mail.lha.org> From: "Bitler, Richard L" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 14:05:42 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bitler, Richard L" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 14:05:42 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian Rick Bitler Lancaster General Hospital Lancaster, PA > -----Original Message----- > From: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] > Sent: Thursday, March 28, 2002 09:32 > To: 'linac' > Subject: Suggestion > > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service > - > name only not quantity - it would give us brake down of the list > population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:41:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qeqL-0005V4-00; Thu, 28 Mar 2002 19:41:49 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 72DCF1112F3; Thu, 28 Mar 2002 20:21:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA27864 for linac-eng-list; Thu, 28 Mar 2002 13:11:06 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from stvgb.org ([204.44.160.58]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA27859 for ; Thu, 28 Mar 2002 13:11:05 -0600 (CST) Received: from SVGINET-Message_Server by stvgb.org with Novell_GroupWise; Thu, 28 Mar 2002 13:10:34 -0600 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Thu, 28 Mar 2002 13:10:26 -0600 From: "Jerry Glaeser" To: , Subject: Re: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27860 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 13:10:26 -0600 From: "Jerry Glaeser" To: , Subject: Re: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27860 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We currently have Varian Linacs and Simulator. Jerry Glaeser, BMET Radiological Services Biomedical Technology Dept. St. Vincent Hospital 835 S. Van Buren St. Green Bay, WI 54301 e-mail: jglaeser@stvgb.org >>> "Rozenblat, Alex" 03/28/02 08:32AM >>> Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:49:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qexS-0005VF-00; Thu, 28 Mar 2002 19:49:10 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 586581112F3; Thu, 28 Mar 2002 20:29:13 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA01038 for linac-eng-list; Thu, 28 Mar 2002 13:16:56 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA01021 for ; Thu, 28 Mar 2002 13:16:54 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Thu, 28 Mar 2002 15:15:04 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 28 Mar 2002 15:14:57 -0400 From: "Scott Purcell" To: , Subject: RE:Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA01034 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 15:14:57 -0400 From: "Scott Purcell" To: , Subject: RE:Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.0.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA01034 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi to All 4 Varian Clinacs 1 Picker CT 1 Phillips Convential Sim Cheers Scott Purcell >>> "Conn, Calvin R." 03/28/02 02:08PM >>> Varian 6/100 Calvin R. Conn > >Hello, everyone > >First of all thank you for the overwhelming response - one message. > >I have a suggestion, of course if you have a minute to spare: can we do >a fast survey about what types of linac we service. If everyone replies >(to all, please) to this message with only one info - what does he/she >service - name only not quantity - it would give us brake down of the >list population. Would be helpful to see who stayed after mass exodus >caused by issue "closed/open". May be it's only Varian list now, or may >be - hopefully - not. > >My part: in our centre we have Electas, Mevatrons (Siemens), Primuses >(Siemens). > >Alex Rozenblat, >TSRCC, Toronto > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 19:50:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qeyw-0005VT-00; Thu, 28 Mar 2002 19:50:42 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 376D11112F3; Thu, 28 Mar 2002 20:30:45 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA02325 for linac-eng-list; Thu, 28 Mar 2002 13:19:18 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA02313 for ; Thu, 28 Mar 2002 13:19:17 -0600 (CST) Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Thu, 28 Mar 2002 11:18:37 -0800 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0 Date: Thu, 28 Mar 2002 11:18:20 -0800 From: "Steve Reliford" To: , Subject: Re: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA02322 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 11:18:20 -0800 From: "Steve Reliford" To: , Subject: Re: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA02322 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk At our centers with three engineers: 2ea Varian 2300cd 1ea Varian 600cd 1ea varian 6ooc 2ea Varian 2100c 1ea Varian 21EX 1ea Varian 1800 5ea Varian Ximitron 1ea Kermath Sim 1ea Philips Sim 2ea Varian MKII MLC 2ea Varian MKIV MLC 2ea Varian Millennium MLC 1ea Picker AcQ Sim Thanks to all, Steve 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 20:17:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qfOb-0005WV-00; Thu, 28 Mar 2002 20:17:13 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BEAA31112F3; Thu, 28 Mar 2002 20:57:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA11779 for linac-eng-list; Thu, 28 Mar 2002 13:41:05 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA11775 for ; Thu, 28 Mar 2002 13:41:04 -0600 (CST) Received: (qmail 25417 invoked from network); 28 Mar 2002 19:40:31 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 28 Mar 2002 19:40:31 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 11:37:34 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA018A2C2@SERVER20> From: Rodger Sabey To: "'linac-eng@plato.aristotle.net'" Subject: =?iso-8859-1?Q?RE=3A_Alex=B4s_Suggestion?= Date: Thu, 28 Mar 2002 11:40:58 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Rodger Sabey To: "'linac-eng@plato.aristotle.net'" Subject: =?iso-8859-1?Q?RE=3A_Alex=B4s_Suggestion?= Date: Thu, 28 Mar 2002 11:40:58 -0800 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian and Electa 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 20:26:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qfXe-0005Wz-00; Thu, 28 Mar 2002 20:26:34 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EDF2F1112F3; Thu, 28 Mar 2002 21:06:36 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA13804 for linac-eng-list; Thu, 28 Mar 2002 13:53:43 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtpgate.exempla.org (mail2.exempla.org [170.188.7.25]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA13798 for ; Thu, 28 Mar 2002 13:53:42 -0600 (CST) Received: from LMC-Message_Server by smtpgate.exempla.org with Novell_GroupWise; Thu, 28 Mar 2002 12:52:53 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Thu, 28 Mar 2002 12:52:36 -0700 From: "James Lollar" To: , Subject: Re: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA13801 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 12:52:36 -0700 From: "James Lollar" To: , Subject: Re: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA13801 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian and Siemens James Lollar Linac Engineer Radiation Oncology St. Joseph Hospital Denver, Colo Phone:303-837-7795 E-Mail:lollarj@exempla.org >>> "Rozenblat, Alex" 03/28 7:32 AM >>> Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 20:44:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qfoi-0005XY-00; Thu, 28 Mar 2002 20:44:12 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A910B1112F3; Thu, 28 Mar 2002 21:24:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA16149 for linac-eng-list; Thu, 28 Mar 2002 14:06:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA16106 for ; Thu, 28 Mar 2002 14:06:46 -0600 (CST) Received: by igate-int.hbocvan.com; id PAA11711; Thu, 28 Mar 2002 15:06:44 -0500 (EST) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma011557; Thu, 28 Mar 02 15:06:39 -0500 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 15:04:53 -0500 Message-ID: From: "Eason, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 15:04:51 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 15:04:51 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian 21EX 120 MLC ASI P.V. Vision 6 Varian 2100C Cobalt 60 Orthovoltage GE HiSpeed Advantage CT Oldelft Sim. Pinnacle Treatment Center A few washer/dryer combo's at the Docs house along with installation of light switches and ceiling fans for everyone. Guy Eason PPMH 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 20:46:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qfqT-0005Xd-00; Thu, 28 Mar 2002 20:46:01 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B57E51112F3; Thu, 28 Mar 2002 21:26:04 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA17361 for linac-eng-list; Thu, 28 Mar 2002 14:13:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [192.234.106.2] ([192.234.106.2]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA17349 for ; Thu, 28 Mar 2002 14:13:51 -0600 (CST) From: John.McGee@lvh.com Received: from no.name.available by [192.234.106.2] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 28 Mar 2002 20:13:51 UT X-Internal-ID: 3CA30C28000015B7 Received: from lvh.com (192.234.106.35) by lvhlsgcs2.lvh.com (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 28 Mar 2002 15:08:35 -0500 Message-ID: Date: Thu, 28 Mar 2002 15:10:00 -0500 To: linac-eng@plato.aristotle.net Subject: linacs Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.McGee@lvh.com X-Internal-ID: 3CA30C28000015B7 Date: Thu, 28 Mar 2002 15:10:00 -0500 To: linac-eng@plato.aristotle.net Subject: linacs Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk All Phillips/Elekta for now 2- sl25's 1-sl precise 1- sls14 1- precise sim 1- lx cat scan 1- sl75/5 1- coming late in the year?????? John McGee John and Dorothy Morgan Cancer Center Lehigh Valley Hospital Allentown,PA. 18105 610-402-0729 Please note that if you received this message in error,you are hereby notified that any dissemination of this communication is strictly prohibited. Please notify me immediately by reply e-mail and delete all copies of the original message. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 21:02:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qg60-0005YN-00; Thu, 28 Mar 2002 21:02:04 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 41C1D1112F3; Thu, 28 Mar 2002 21:42:07 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA18792 for linac-eng-list; Thu, 28 Mar 2002 14:25:27 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA18787 for ; Thu, 28 Mar 2002 14:25:26 -0600 (CST) Received: (qmail 27796 invoked from network); 28 Mar 2002 20:24:55 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 28 Mar 2002 20:24:55 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 12:21:58 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA006F9C657@SERVER20> From: Denny Yu To: linac-eng@plato.aristotle.net, Alex.Rozenblat@tsrcc.on.ca Subject: suggestion Date: Thu, 28 Mar 2002 12:25:22 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Denny Yu To: linac-eng@plato.aristotle.net, Alex.Rozenblat@tsrcc.on.ca Subject: suggestion Date: Thu, 28 Mar 2002 12:25:22 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Elektas and Varian. Denny Yu Service Tech Fraser Valley Cancer Centre Surrey, B.C. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 21:27:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qgUi-0005ZS-00; Thu, 28 Mar 2002 21:27:36 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B7F151112F3; Thu, 28 Mar 2002 22:07:38 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA23644 for linac-eng-list; Thu, 28 Mar 2002 14:49:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.carti.com (adsl-65-66-64-155.carti.com [65.66.64.155]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA23600 for ; Thu, 28 Mar 2002 14:49:13 -0600 (CST) Received: by mail with Internet Mail Service (5.5.2650.21) id ; Thu, 28 Mar 2002 14:46:52 -0600 Message-ID: <456543C21489CA41BF1D6A22A721F5AA18F6E3@cartimail.carti.com> From: Jim Beaty To: linac-eng@plato.aristotle.net Subject: RE: Suggestion Date: Thu, 28 Mar 2002 14:48:24 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Jim Beaty To: linac-eng@plato.aristotle.net Subject: RE: Suggestion Date: Thu, 28 Mar 2002 14:48:24 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk linacs - 5 Varian 2100's, 4 Varian 21EX's MLC's - 7 Varian Millennium 120's, 1 Varian Mark 80 sims - 7 Varian Ximatrons CT's - 6 GE HLA's, 1 PickerMarconiPhillips Jim Beaty CARTI, Inc. -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thursday, March 28, 2002 8:32 AM To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 21:32:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qgYy-0005Zd-00; Thu, 28 Mar 2002 21:32:00 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F8F61112F4; Thu, 28 Mar 2002 22:12:03 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA24340 for linac-eng-list; Thu, 28 Mar 2002 14:56:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA24329 for ; Thu, 28 Mar 2002 14:56:47 -0600 (CST) Received: (qmail 29334 invoked from network); 28 Mar 2002 20:56:16 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 28 Mar 2002 20:56:16 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 12:53:19 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA007A4F5C3@SERVER20> From: "Patrick Wong (VICC)" To: "'linac-eng@plato.aristotle.net'" Subject: Linac Date: Thu, 28 Mar 2002 12:56:43 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" To: "'linac-eng@plato.aristotle.net'" Subject: Linac Date: Thu, 28 Mar 2002 12:56:43 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi to All, All Varian 4 21EX Millennium MLC, 2-120 & 2-80 , 4-ASiP.V. 2 6EX Millennium 80 MLC, 1 ASiP.V. & Liquid P.V. 1 GE HiSpeed Advantage CT 1 Ximatron 1 Varisource HDR System 200 1 Old Philips RT-100 Patrick Wong C.T. Radiation Therapy Service Technologist Dept. of Medical Physics Vancouver Island Cancer Centre 2410 Lee Avenue Victoria, British Columbia Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 21:50:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qgqZ-0005aT-00; Thu, 28 Mar 2002 21:50:11 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EFEF11112F3; Thu, 28 Mar 2002 22:30:13 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA27912 for linac-eng-list; Thu, 28 Mar 2002 15:12:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA27908 for ; Thu, 28 Mar 2002 15:12:50 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Thu, 28 Mar 2002 15:15:47 -0600 Received: by corpexcon01.corp.medcity.net with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 15:14:24 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F86637@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "Linac list (E-mail)" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 15:13:04 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "Linac list (E-mail)" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 15:13:04 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian Accelerators 1 - 21EX ser# 1485 w/ Millennium 80 MLC & Mk2 PortalVision plus dual Holley 4 barrels! 1 - CL1800 ser# 046 Nucletron/ Oldelft Simulator Simulix-MC Mike T. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 21:50:55 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qgrH-0005aZ-00; Thu, 28 Mar 2002 21:50:55 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AAFDC1112F4; Thu, 28 Mar 2002 22:30:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA27611 for linac-eng-list; Thu, 28 Mar 2002 15:11:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m03.mx.aol.com (imo-m03.mx.aol.com [64.12.136.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA27601 for ; Thu, 28 Mar 2002 15:11:39 -0600 (CST) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-m03.mx.aol.com (mail_out_v32.5.) id m.26.254e5da9 (4555); Thu, 28 Mar 2002 16:11:01 -0500 (EST) Message-ID: <26.254e5da9.29d4e0e4@aol.com> Date: Thu, 28 Mar 2002 16:11:00 EST Subject: Re: Suggestion To: Scott.Purcell@cdha.nshealth.ca, linac-eng@plato.aristotle.net, CRConn@st-claire.org MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Thu, 28 Mar 2002 16:11:00 EST Subject: Re: Suggestion To: Scott.Purcell@cdha.nshealth.ca, linac-eng@plato.aristotle.net, CRConn@st-claire.org Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello list, Mostly Siemens: 4 Mevatron -2 2 Conventional 2 Simview 3000 3 Mevasim S A couple old Varian: 2 CL-4 2 Kermath Sims 1 suggestion: Just for curiosity sake, its interesting when more info is given with the signature. Dave Steimel MIRO Farmington Hills, MI, USA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 21:58:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qgyi-0005az-00; Thu, 28 Mar 2002 21:58:36 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7245D1112F5; Thu, 28 Mar 2002 22:38:38 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA28884 for linac-eng-list; Thu, 28 Mar 2002 15:19:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA28878 for ; Thu, 28 Mar 2002 15:19:46 -0600 (CST) Received: from 165.214.16.134 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Thu, 28 Mar 2002 15:22:45 -0600 Received: by exweb01.colhca.com with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 15:20:47 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F86639@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "Linac list (E-mail)" Subject: FW: Suggestion Date: Thu, 28 Mar 2002 15:20:01 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "Linac list (E-mail)" Subject: FW: Suggestion Date: Thu, 28 Mar 2002 15:20:01 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk > >A few washer/dryer combo's at the Docs house along with installation of > >light switches and ceiling fans for everyone. > > >Guy Eason > >PPMH > > Yea, I forgot to through in the Doc's Rolex and the techs > earrings,braclets and what have you! > Also VCRs' and stereos' > > Mike T. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 21:58:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qgyi-0005b3-00; Thu, 28 Mar 2002 21:58:36 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 415FE1112F4; Thu, 28 Mar 2002 22:38:38 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA28903 for linac-eng-list; Thu, 28 Mar 2002 15:19:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dns1.e.benefis.org ([12.46.94.198]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA28898 for ; Thu, 28 Mar 2002 15:19:54 -0600 (CST) Received: from migauthsvr.dmz.benefis.org (migauthsvr.dmz.benefis.org [192.168.100.40]) by dns1.e.benefis.org (8.10.1/8.10.1) with SMTP id g2SLJq126817 for ; Thu, 28 Mar 2002 14:19:52 -0700 Received: FROM MFACPC14 BY migauthsvr.dmz.benefis.org ; Thu Mar 28 14:14:20 2002 -0700 Message-ID: <001301c1d69e$43304be0$71680a80@MFACPC14.e.benefis.org> From: "Wayne Blaine" To: Subject: Suggestion Date: Thu, 28 Mar 2002 14:19:36 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C1D663.96C0AB00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wayne Blaine" To: Subject: Suggestion Date: Thu, 28 Mar 2002 14:19:36 -0700 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C1D663.96C0AB00" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0010_01C1D663.96C0AB00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable One Varian 2100cd sn 672 One Siemens MD sn 1782 One Varian Ximatron Wayne Blaine CRES Radiology Service Benefis Healthcare Great Falls, Mt ------=_NextPart_000_0010_01C1D663.96C0AB00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    One Varian 2100cd  sn = 672
    One Siemens  MD   sn=20 1782
    One Varian  Ximatron
     
    Wayne Blaine  CRES
    Radiology Service
    Benefis Healthcare
    Great Falls,  Mt
     
    ------=_NextPart_000_0010_01C1D663.96C0AB00-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 22:26:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qhPa-0005cc-00; Thu, 28 Mar 2002 22:26:22 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BEF701112F3; Thu, 28 Mar 2002 23:06:25 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA09118 for linac-eng-list; Thu, 28 Mar 2002 15:55:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm10.texas.rr.com (sm10.texas.rr.com [24.93.35.222]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA09095 for ; Thu, 28 Mar 2002 15:55:18 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm10.texas.rr.com (8.12.0.Beta16/8.12.0.Beta16) with ESMTP id g2SLtF17018538 for ; Thu, 28 Mar 2002 15:55:16 -0600 From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 28 Mar 2002 15:52:35 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: linacs Reply-To: acceltek@acceltekservice.com Message-ID: <3CA33C43.11171.13FA698@localhost> In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 28 Mar 2002 15:52:35 -0600 Content-type: text/plain; charset=US-ASCII Subject: Re: linacs Reply-To: acceltek@acceltekservice.com In-reply-to: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We service both Siemens and Varian, with the majority at this time being Siemens. We have no plans of leaving the list, open or closed, and the spam is going to do what the spam is going to do. Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 22:31:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qhU8-0005cx-00; Thu, 28 Mar 2002 22:31:04 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 321901112F3; Thu, 28 Mar 2002 23:11:07 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA11411 for linac-eng-list; Thu, 28 Mar 2002 15:59:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm14.texas.rr.com (sm14.texas.rr.com [24.93.35.41]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA11402 for ; Thu, 28 Mar 2002 15:59:26 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm14.texas.rr.com (8.12.0.Beta16/8.12.0.Beta16) with ESMTP id g2SM2xi0004346 for ; Thu, 28 Mar 2002 16:03:00 -0600 From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 28 Mar 2002 15:57:52 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Phillips RT250 Docs Reply-To: acceltek@acceltekservice.com Message-ID: <3CA33D80.15516.1447C50@localhost> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 28 Mar 2002 15:57:52 -0600 Content-type: text/plain; charset=US-ASCII Subject: Phillips RT250 Docs Reply-To: acceltek@acceltekservice.com Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have a customer that has a Phillips RT 250 orthovoltage they would like to commission. The have no documentation on the unit however. The have not had any luck getting documentation thru Phillips apparently. Does anyone have a spare set, a set that can be copyed, etc..etc... If so, please contact us and we can make whatever arangements you would need. They are looking for both schematics and alignment / set-up documentation. Thanks in advance. Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 22:42:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qhfC-0005dP-00; Thu, 28 Mar 2002 22:42:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 270BF1112F3; Thu, 28 Mar 2002 23:22:33 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA18843 for linac-eng-list; Thu, 28 Mar 2002 16:11:16 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (oe70.law8.hotmail.com [216.33.240.205]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA18823 for ; Thu, 28 Mar 2002 16:11:15 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 28 Mar 2002 14:10:44 -0800 X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Clinac-summision" References: <001301c1d69e$43304be0$71680a80@MFACPC14.e.benefis.org> Subject: Re: Suggestion Date: Thu, 28 Mar 2002 17:06:05 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F6_01C1D67A.D8B21C30" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-ID: X-OriginalArrivalTime: 28 Mar 2002 22:10:44.0451 (UTC) FILETIME=[67EB5B30:01C1D6A5] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Clinac-summision" Subject: Re: Suggestion Date: Thu, 28 Mar 2002 17:06:05 -0500 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F6_01C1D67A.D8B21C30" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-OriginalArrivalTime: 28 Mar 2002 22:10:44.0451 (UTC) FILETIME=[67EB5B30:01C1D6A5] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_00F6_01C1D67A.D8B21C30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Varian=20 Jose Villegas Baptist Hospital Oof Miami ------=_NextPart_000_00F6_01C1D67A.D8B21C30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Varian=20
     
    Jose=20 Villegas
    Baptist = Hospital Oof=20 Miami
    ------=_NextPart_000_00F6_01C1D67A.D8B21C30-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 22:43:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qhgY-0005dU-00; Thu, 28 Mar 2002 22:43:54 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 354FC1112F3; Thu, 28 Mar 2002 23:23:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA20039 for linac-eng-list; Thu, 28 Mar 2002 16:13:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hrccex.hrcc.on.ca ([209.167.169.190]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA20018 for ; Thu, 28 Mar 2002 16:13:30 -0600 (CST) Received: from SMTP agent by mail gateway Thu, 28 Mar 2002 17:46:41 -0500 Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 17:13:38 -0500 Message-ID: <9C688FB52A05D51194750002B325B5F701A5AB24@hrccex.hrcc.on.ca> From: "Heil, Ben" To: "Linac list (E-mail)" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 17:13:37 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Heil, Ben" To: "Linac list (E-mail)" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 17:13:37 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 2 Varian 2100C 1 Varian 2100CD 2 Varian 600C 3 Theratronics Cobalt 1 Gulmay Orthovoltage 3 Nucletron Selectron LDR 1 Varian 80leaf MLC 1 Varian Portal Vision 2 Varian Ximatron Sim 1 GE CT Sim 1 Philips Simulator Varis Assorted Laboratory Equipment (centrifuges, incubators) 5 more Varian Linacs with MLC and PV in the next 2-3 years 1 more GE CT sim in the next 2-3 years Ben Heil Electronics Engineering Technologist Hamilton Regional Cancer Centre Hamilton, Ontario, Canada, eh "Yeap, Fix Fix Fix..." 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 22:44:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qhgy-0005dZ-00; Thu, 28 Mar 2002 22:44:20 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ADE7A1112F3; Thu, 28 Mar 2002 23:24:23 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA20767 for linac-eng-list; Thu, 28 Mar 2002 16:14:40 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sm11.texas.rr.com (sm11.texas.rr.com [24.93.35.42]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA20745 for ; Thu, 28 Mar 2002 16:14:37 -0600 (CST) Received: from pent4 (cs2416072-158.houston.rr.com [24.160.72.158]) by sm11.texas.rr.com (8.12.1/8.12.0) with ESMTP id g2SMABKY000361 for ; Thu, 28 Mar 2002 16:10:11 -0600 From: "Thomas McCausland" To: "'linac-eng@plato.aristotle.net'" Date: Thu, 28 Mar 2002 16:12:59 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: RE: Suggestion Reply-To: acceltek@acceltekservice.com Message-ID: <3CA3410B.13911.152519D@localhost> In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: "'linac-eng@plato.aristotle.net'" Date: Thu, 28 Mar 2002 16:12:59 -0600 Content-type: text/plain; charset=US-ASCII Subject: RE: Suggestion Reply-To: acceltek@acceltekservice.com In-reply-to: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk From: "Eason, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Suggestion Date sent: Thu, 28 Mar 2002 15:04:51 -0500 --- Silly radiotherapy equipment snipped here --------------------------- > > A few washer/dryer combo's at the Docs house along with installation > of light switches and ceiling fans for everyone. > > Guy Eason > PPMH I don't think Varian makes washer/dryer combos, but I'm almost certain Siemens does. We haven't been able to take on cieling fans yet. Haven't been able to get past the 'unbalanced blade' (module 4), part of the practical test yet. Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 23:46:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qifB-0005g4-00; Thu, 28 Mar 2002 23:46:33 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 159DA1112F3; Fri, 29 Mar 2002 00:26:35 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA20537 for linac-eng-list; Thu, 28 Mar 2002 17:11:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lnksmtp.cgmh.org.tw (lnksmtp.cgmh.org.tw [210.61.73.27]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA20517 for ; Thu, 28 Mar 2002 17:11:50 -0600 (CST) Received: from crakaNB ([10.30.13.11]) by lnksmtp.cgmh.org.tw (8.9.3/8.9.3) with ESMTP id HAA04387; Fri, 29 Mar 2002 07:23:45 +0800 Message-ID: <003701c1d6ad$28339540$0b0d1e0a@crakaNB> From: "Andre" To: "Steve Reliford" , References: Subject: Re: Suggestion Date: Fri, 29 Mar 2002 07:06:12 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andre" To: "Steve Reliford" , Subject: Re: Suggestion Date: Fri, 29 Mar 2002 07:06:12 +0800 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have 3 engineers wwork with: 1 Varian 600C with MLC 1 Varian 2100C with MLC and Theraview EPI 1 Varian 2100CD with MLC and Varian portal vision MK1 2 Varian 21EX with MLC 2 Varian 21EX with Mill. MLC and Portal Vision Asi. 1 Siemens KDS2 1 Odelft Simmulator 1 NEC simulator 1 Picker PQ-5000 CT-Sim 1 GE lightspeed CT with soma vision And management system with Varis Thanks Chung-Gang Memorial Hospital , Linko Taiwan 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Mar 28 23:46:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qifB-0005g7-00; Thu, 28 Mar 2002 23:46:33 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2DD1F1112F4; Fri, 29 Mar 2002 00:26:35 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA20438 for linac-eng-list; Thu, 28 Mar 2002 17:11:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from webshield.tmh.tmc.edu (webshield.tmh.tmc.edu [128.249.171.72]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id RAA20432 for ; Thu, 28 Mar 2002 17:11:37 -0600 (CST) Received: FROM exch2.tmh.tmc.edu BY webshield.tmh.tmc.edu ; Thu Mar 28 17:12:23 2002 -0600 Received: by exch2.tmh.tmc.edu with Internet Mail Service (5.5.2653.19) id ; Thu, 28 Mar 2002 17:08:57 -0600 Message-ID: <19F7B261417BD211BB660060973789D20DE5F8C9@exch2.tmh.tmc.edu> From: "Segovia, Luis E." To: "Rozenblat, Alex" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 17:08:56 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Segovia, Luis E." To: "Rozenblat, Alex" , "'linac'" Subject: RE: Suggestion Date: Thu, 28 Mar 2002 17:08:56 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk SIemens > -----Original Message----- > From: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] > Sent: Thursday, March 28, 2002 8:32 AM > To: 'linac' > Subject: Suggestion > > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service > - > name only not quantity - it would give us brake down of the list > population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 01:55:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qkfk-0005kK-00; Fri, 29 Mar 2002 01:55:16 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9C5F31112F3; Fri, 29 Mar 2002 02:35:17 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA09228 for linac-eng-list; Thu, 28 Mar 2002 19:23:03 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.comcast.net (smtp.comcast.net [24.153.64.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA09224 for ; Thu, 28 Mar 2002 19:23:02 -0600 (CST) Received: from cc438936b (bgp611111bgs.midltn01.nj.comcast.net [68.39.72.8]) by mtaout45-02.icomcast.net (iPlanet Messaging Server 5.1 (built Feb 6 2002)) with SMTP id <0GTP007XDNTJRH@mtaout45-02.icomcast.net> for linac-eng@plato.aristotle.net; Thu, 28 Mar 2002 20:22:31 -0500 (EST) Date: Thu, 28 Mar 2002 20:20:44 -0500 From: "Thomas J. Fox" Subject: RE: Suggestion In-reply-to: To: "Rozenblat, Alex" , "'linac'" Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Mar 2002 20:20:44 -0500 From: "Thomas J. Fox" Subject: RE: Suggestion In-reply-to: To: "Rozenblat, Alex" , "'linac'" X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Content-type: text/plain; charset=iso-8859-1 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 5 sites within a 70 mile radius; 7 Primus' w/MLC's (Siemens) KD2 (Siemens) MD2 (Siemens) 2 Mevasim Simulators (Siemens) Lantis networks (Siemens) Odelft-Nucletron Sim. 600C (Varian) 2100C (Varian) Livingston Tech. (St. Barnabas Healthcare Systems) New Jersey -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Rozenblat, Alex Sent: Thursday, March 28, 2002 9:32 AM To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 03:54:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qmWm-0005p6-00; Fri, 29 Mar 2002 03:54:08 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 949C41112F3; Fri, 29 Mar 2002 04:34:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA14499 for linac-eng-list; Thu, 28 Mar 2002 21:21:16 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r06.mx.aol.com (imo-r06.mx.aol.com [152.163.225.102]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA14495 for ; Thu, 28 Mar 2002 21:21:15 -0600 (CST) From: RCPYLUT@aol.com Received: from RCPYLUT@aol.com by imo-r06.mx.aol.com (mail_out_v32.5.) id y.c5.207f6e88 (4216) for ; Thu, 28 Mar 2002 22:20:35 -0500 (EST) Message-ID: Date: Thu, 28 Mar 2002 22:20:35 EST Subject: suggestion To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: RCPYLUT@aol.com Date: Thu, 28 Mar 2002 22:20:35 EST Subject: suggestion To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have a Varian 600c, Varian 2300cd with 120 Millennium + (iso-octane) Portal Vision, Varian 2100ex Platinum with 120 MLC + amorphous silicon Portal Vision and a Varian CT Sim that uses a GE Hi Speed (multi-row) scanner. As so many of the others said "all Varian". Why mess with success ??? Tom B. Diel SAMC Cancer Center Fresno, CA 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 07:32:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qpw7-0006Dx-00; Fri, 29 Mar 2002 07:32:31 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 29DAE1112F3; Fri, 29 Mar 2002 08:12:33 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA22511 for linac-eng-list; Fri, 29 Mar 2002 01:00:12 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f188.law8.hotmail.com [216.33.241.188]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA22507 for ; Fri, 29 Mar 2002 01:00:11 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 28 Mar 2002 22:59:40 -0800 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Fri, 29 Mar 2002 06:59:40 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: rsabey@bccancer.bc.ca, linac-eng@plato.aristotle.net Subject: RE: Alex´s Suggestion Date: Fri, 29 Mar 2002 00:59:40 -0600 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 29 Mar 2002 06:59:40.0736 (UTC) FILETIME=[4C382400:01C1D6EF] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: rsabey@bccancer.bc.ca, linac-eng@plato.aristotle.net Subject: RE: Alex´s Suggestion Date: Fri, 29 Mar 2002 00:59:40 -0600 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 29 Mar 2002 06:59:40.0736 (UTC) FILETIME=[4C382400:01C1D6EF] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I think you people are just testing the Listserver. LOL 3ea Varian 2100EX with MLC 120 Philips SLS SIM Siemens Stabilapan II RT 50 2ea GE NXI CT Sims 4ea X-Ray Rooms R&F T.V. Repair for the whole Hospital (so I can have a T.V. at my work area) 5ea GE port X-Ray 1ea GE PET on the way 2ea GE Scanners Spectralink phones (Just when they get dumped in water) >From: Rodger Sabey >To: "'linac-eng@plato.aristotle.net'" >Subject: RE: Alex´s Suggestion >Date: Thu, 28 Mar 2002 11:40:58 -0800 > >Varian and Electa > > ROD WILLIAMS _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 08:00:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qqMm-0006Tf-00; Fri, 29 Mar 2002 08:00:04 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CBF471112F4; Fri, 29 Mar 2002 08:40:05 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA23362 for linac-eng-list; Fri, 29 Mar 2002 01:27:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id BAA23358 for ; Fri, 29 Mar 2002 01:27:57 -0600 (CST) Received: (qmail 62857 invoked from network); 29 Mar 2002 05:31:49 -0000 Received: from unknown (HELO webmail02) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 29 Mar 2002 05:31:49 -0000 Message-ID: <10092159.1017379886704.JavaMail.root@webmail02> Date: Fri, 29 Mar 2002 13:31:26 +0800 (HKT) From: Jonathan Chan To: linac-eng@plato.aristotle.net Subject: Re: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 29 Mar 2002 13:31:26 +0800 (HKT) From: Jonathan Chan To: linac-eng@plato.aristotle.net Subject: Re: Suggestion Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 1 Elekta SL20 1 Varian 600C (C2) 1 Varian 6EX with PV and MMLC 1 Varian 2300CD with PV and MMLC 1 Varian Xim with ScanVision 1 Nucletron LDR 1 Nucletron HDR Plus many small machines. Jonathan Chan Queen Mary Hospital -----Original Message----- From: "Rozenblat, Alex" Sent: Thu Mar 28 22:32:00 HKT 2002 To: 'linac' Cc: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 08:07:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qqTb-0006VD-00; Fri, 29 Mar 2002 08:07:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8F1451112F3; Fri, 29 Mar 2002 08:47:09 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA23592 for linac-eng-list; Fri, 29 Mar 2002 01:36:19 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA23588 for ; Fri, 29 Mar 2002 01:36:18 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id D5C051112F3; Fri, 29 Mar 2002 08:33:23 +0100 (MET) Received: from (kriek.radcl.ruu.nl) [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qqGG-0006PQ-00; Fri, 29 Mar 2002 07:53:20 +0100 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 29 Mar 02 08:34:30 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 29 Mar 02 08:34:19 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "'linac'" , "Rozenblat, Alex" Date: Fri, 29 Mar 2002 08:34:18 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Suggestion In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "'linac'" , "Rozenblat, Alex" Date: Fri, 29 Mar 2002 08:34:18 +0100 Content-type: text/plain; charset=US-ASCII Subject: Re: Suggestion In-reply-to: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello again Alex Here at Utrecht we have 5 Elekta linacs (SL/SLi/Precise - all running RTD from a central data server) 2 Philips SLS series Simulators 1 Nucletron Simulix Simulator 1 Philips Orthovolt 1 Philips CT 3 of the Linacs have MLC's 2 have AmSi portal vision (iView GT) Optical iView We've just spent the last 3 or 4 days decommissioning one of our older linacs for replacement (was 14 years of clinical use) - again Elekta. This will bring our regular complement back up to 6 linacs (additional capacity for a further 3 linacs - new bunkers etc - is due to come online within the next few years). Previous experience includes More Elekta (ex-factory) ABB linacs Theratronics Cobalts Varian Ximatron Simulators Picker/Marconi/Philips PQ5000 CT + VoxelQ workstations Other bits and pieces that I can't remember the details of... Regards Stuart From: "Rozenblat, Alex" To: "'linac'" Subject: Suggestion Date sent: Thu, 28 Mar 2002 09:32:00 -0500 > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service > - name only not quantity - it would give us brake down of the list > population. Would be helpful to see who stayed after mass exodus caused > by issue "closed/open". May be it's only Varian list now, or may be - > hopefully - not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto -------------- Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 10:44:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qsvs-0007Oq-00; Fri, 29 Mar 2002 10:44:28 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B5F321112F5; Fri, 29 Mar 2002 11:24:29 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA28405 for linac-eng-list; Fri, 29 Mar 2002 04:11:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA28401 for ; Fri, 29 Mar 2002 04:11:39 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g2TABJW11104 for ; Fri, 29 Mar 2002 04:11:19 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g2TABJ811100 for ; Fri, 29 Mar 2002 04:11:19 -0600 (CST) Received: through eSafe SMTP Relay 1016464309; Fri Mar 29 04:11:19 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Fri, 29 Mar 2002 04:11:18 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E64@wmhmail.phci.org> From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: RE: Varian MLCs Date: Fri, 29 Mar 2002 04:11:06 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D70A.0A78FAB0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: RE: Varian MLCs Date: Fri, 29 Mar 2002 04:11:06 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1D70A.0A78FAB0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1D70A.0A78FAB0 Content-Type: text/plain Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: ROD WILLIAMS [SMTP:roddmod@hotmail.com] > Sent: Friday, March 29, 2002 2:20 AM > To: rod.williams@phci.org > Subject: Varian MLCs > > Good morning to all. I just would like you to know that the MLC power > supplies, #1105970-01 can now be purchased though RADPARTS.COM. > You can send yours in to them to be rebuilt or they have them in stock > ready > to ship. I know that it is a hassle to enter a new vendor into your > purchasing systems so I thought that this would make things easier for > everyone. Also if you have the MISSION power supplies those can be rebuilt > > to. > Also if I get at least four of you to show a interest,in a plug and go > system that would shut down your MLC power supply, (with a time delay) > when > the Linac is turned to standby. I would like to build and offer this to > everyone. I have had this on three of my Machines for over a year and the > benefits are worth considering. The optics just seem to maintain their > output, those expensive boards are just not failing, and if you don't have > a > timer on your MLC Controller this makes sure if the techs forget to turn > it > off this will take care of that problem. The cost would be around $600.00. > > Let me know if there is an interest. > > Thanks Rod > > Encore Engineering Services > > > > > > > > _________________________________________________________________ > Get your FREE download of MSN Explorer at > http://explorer.msn.com/intl.asp. ------_=_NextPart_001_01C1D70A.0A78FAB0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Varian MLCs

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   ROD WILLIAMS [SMTP:roddmod@hotmail.com]
      Sent:   Friday, March 29, 2002 2:20 AM
      To:     rod.williams@phci.org
      Subject:       = Varian MLCs

      Good morning to all. I just would like = you to know that the MLC power
      supplies, #1105970-01 can now be = purchased though RADPARTS.COM.
      You can send yours in to them to be = rebuilt or they have them in stock ready
      to ship. I know that it is a hassle = to enter a new vendor into your
      purchasing systems so I thought that = this would make things easier for
      everyone. Also if you have the = MISSION power supplies those can be rebuilt
      to.
      Also if I get at least four of you to = show a interest,in a plug and go
      system that would shut down your MLC = power supply, (with a time delay) when
      the Linac is turned to standby. I = would like to build and offer this to
      everyone. I have had this on three of = my Machines for over a year and the
      benefits are worth considering. The = optics just seem to maintain their
      output, those expensive boards are = just not failing, and if you don't have a
      timer on your MLC Controller this = makes sure if the techs forget to turn it
      off this will take care of that = problem. The cost would be around $600.00.
      Let me know if there is an = interest.

      Thanks Rod

      Encore Engineering Services







      _________________________________________________________= ________
      Get your FREE download of MSN = Explorer at http://explorer.msn.com/intl.asp.

    ------_=_NextPart_001_01C1D70A.0A78FAB0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 13:58:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qvxS-0008Kw-00; Fri, 29 Mar 2002 13:58:18 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 84A091112F3; Fri, 29 Mar 2002 14:38:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA03485 for linac-eng-list; Fri, 29 Mar 2002 07:26:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailserver.xrt.upenn.edu (email.xrt.upenn.edu [165.123.248.180]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA03481 for ; Fri, 29 Mar 2002 07:26:07 -0600 (CST) Received: by email.xrt.upenn.edu with Internet Mail Service (5.5.2650.21) id ; Fri, 29 Mar 2002 08:35:00 -0500 Message-ID: From: "Kreider, Rick" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Fri, 29 Mar 2002 08:35:00 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kreider, Rick" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Fri, 29 Mar 2002 08:35:00 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk University Of Pennsylvania Varian, Siemens 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 14:34:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qwWF-0008Tm-00; Fri, 29 Mar 2002 14:34:15 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 57ED11112F3; Fri, 29 Mar 2002 15:14:16 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA05330 for linac-eng-list; Fri, 29 Mar 2002 08:04:05 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mtvwca1-smrly1.gtei.net (mtvwca1-smrly1.gtei.net [128.11.176.196]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05326 for ; Fri, 29 Mar 2002 08:04:04 -0600 (CST) From: John.ThomasJr@med.va.gov Received: from deptvasf2-cp.va.gov (deptvasf2-cp.va.gov [205.180.71.121]) by mtvwca1-smrly1.gtei.net (Postfix) with SMTP id 69D899420 for ; Fri, 29 Mar 2002 14:04:03 +0000 (GMT) Received: from 152.129.1.17 by vhaisfmulv.vha.med.va.gov (InterScan E-Mail VirusWall NT); Fri, 29 Mar 2002 05:38:02 -0800 Received: by VHAISHEXCI.med.va.gov with Internet Mail Service (5.5.2653.19) id ; Fri, 29 Mar 2002 06:37:29 -0600 Message-ID: <1B8D85029F09D4118F4E0000F80333ED0121A17D@VHABOSEXC1> To: linac-eng@plato.aristotle.net Date: Fri, 29 Mar 2002 06:40:55 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.ThomasJr@med.va.gov To: linac-eng@plato.aristotle.net Date: Fri, 29 Mar 2002 06:40:55 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 1 Varian clinacs 1 Primus 1 Varian simulator John Thomas Jr. Clinical Engineering 617-232-9500 ext 2129 beeper# 617-705-5863 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 16:29:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qyJO-0000Zk-00; Fri, 29 Mar 2002 16:29:06 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F0FB1112F3; Fri, 29 Mar 2002 17:09:06 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13132 for linac-eng-list; Fri, 29 Mar 2002 09:54:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.tju.edu (mail.tju.edu [147.140.227.185]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA13127 for ; Fri, 29 Mar 2002 09:54:07 -0600 (CST) Received: from hpmail1.tju.edu by mail.tju.edu with ESMTP; Fri, 29 Mar 2002 10:53:34 -0500 Received: from localhost (openmail@localhost) by hpmail1.tju.edu (8.9.3/8.9.3) with ESMTP id KAA00636; Fri, 29 Mar 2002 10:53:33 -0500 (EST) X-OpenMail-Hops: 1 Date: Fri, 29 Mar 2002 10:53:32 -0500 Message-Id: In-Reply-To: Subject: RE: Suggestion MIME-Version: 1.0 From: "Frank Spitz" To: Alex.Rozenblat@tsrcc.on.ca Cc: linac-eng@plato.aristotle.net X-Bad-Content-Type: text/plain; charset=US-ASCII Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline ;Creation-Date="Fri, 29 Mar 2002 10:49:46 -0500" ;Modification-Date="Fri, 29 Mar 2002 10:53:32 -0500" Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-OpenMail-Hops: 1 Date: Fri, 29 Mar 2002 10:53:32 -0500 In-Reply-To: Subject: RE: Suggestion From: "Frank Spitz" To: Alex.Rozenblat@tsrcc.on.ca Cc: linac-eng@plato.aristotle.net X-Bad-Content-Type: text/plain; charset=US-ASCII Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline ;Creation-Date="Fri, 29 Mar 2002 10:49:46 -0500" ;Modification-Date="Fri, 29 Mar 2002 10:53:32 -0500" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Our group services both Elekta and Varian accelerators in 10 separate sites within a 35 mi radius from our principle site Thomas Jefferson University Hospital (TJUH). All sites are members of the Jefferson Health System. General inventory breakdown is as follows: TJUH 2 - Elekta Precise with MLC and I-view 2 - Elekta SL75/5 1 - Elekta SLS sim 1 - Picker/Marconi/Philips AcQsim 1 - Nomos Peacock 1 - Nucletron HDR 1 - Varian 600 SR X-knife 1 - Elekta Gama Knife 1 - Pantak Orthovoltage All other TJUH satellites and Health system members 4 - Varian 2100 (2 with 80 leaf MLC) (1 with portal Imager) 2 - Varian Clinac 4 1 - Elekta SL75/5 1 - Elekta SL15 1 - Elekta Precise 2 - Elekta SLS sims 2 - Varian Xims 1 - Toshiba Sim And anything else they throw at us. I think that's it but I wouldn't be surprised something else has been just added to our inventory. Frank Spitz Clinical Engineer TJUH Philadelphia PA 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 17:11:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qyyI-0000fK-00; Fri, 29 Mar 2002 17:11:22 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7ADC71112F3; Fri, 29 Mar 2002 17:51:22 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA15952 for linac-eng-list; Fri, 29 Mar 2002 10:38:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from chs-exchsv2.covhealth.com (exchangesvr.covhealth.com [207.165.234.87]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA15945 for ; Fri, 29 Mar 2002 10:38:47 -0600 (CST) Received: by chs-exchsv2.covhealth.com with Internet Mail Service (5.5.2653.19) id ; Fri, 29 Mar 2002 10:39:55 -0600 Message-ID: <293B6F21E62CD411BEC400508BD681B2414BC7@chs-exchsv2.covhealth.com> From: "Lockhart, Ryan" To: "'linac-eng@plato.aristotle.net'" Subject: suggestion Date: Fri, 29 Mar 2002 10:39:51 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lockhart, Ryan" To: "'linac-eng@plato.aristotle.net'" Subject: suggestion Date: Fri, 29 Mar 2002 10:39:51 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian 1ea. 2100c 1ea. 1800 (soon to be replaced with probably a 2300 w/ MLC) 1ea. Ximatron GE 1ea. CT/Sim Ryan Lockhart Biomedical Engineering Department Covenant Medical Center 3421 W. 9th St. Waterloo, IA 50702 Phone: 319.272.8058 Fax: 319.272.8055 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 18:00:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16qzjk-0000mH-00; Fri, 29 Mar 2002 18:00:24 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 682391112F3; Fri, 29 Mar 2002 18:40:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA18940 for linac-eng-list; Fri, 29 Mar 2002 11:27:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [167.177.94.234] (gw1.allina.com [167.177.39.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA18936 for ; Fri, 29 Mar 2002 11:27:38 -0600 (CST) Received: from xcon1.allina.com (unverified) by (Content Technologies SMTPRS 4.2.1) with ESMTP id ; Fri, 29 Mar 2002 11:27:07 -0600 Received: from xmbc2n1v.allina.com ([167.177.94.226]) by xcon1.allina.com with Microsoft SMTPSVC(5.0.2195.2966); Fri, 29 Mar 2002 11:27:07 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Subject: RE: Suggestion Date: Fri, 29 Mar 2002 11:27:07 -0600 Message-ID: <88B5398F7B21E445B0988422AB0CE9800AFE5C@XMBC2N1V.allina.com> Thread-Topic: Suggestion Thread-Index: AcHWcKbHaWbDw5qmTmyl5QlCUHnOhwA1gwy1 From: "Cook, Jon" To: "Rozenblat, Alex" , "linac" X-OriginalArrivalTime: 29 Mar 2002 17:27:07.0550 (UTC) FILETIME=[F37813E0:01C1D746] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by plato.aristotle.net id LAA18937 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="utf-8" Subject: RE: Suggestion Date: Fri, 29 Mar 2002 11:27:07 -0600 Thread-Topic: Suggestion Thread-Index: AcHWcKbHaWbDw5qmTmyl5QlCUHnOhwA1gwy1 From: "Cook, Jon" To: "Rozenblat, Alex" , "linac" X-OriginalArrivalTime: 29 Mar 2002 17:27:07.0550 (UTC) FILETIME=[F37813E0:01C1D746] X-MIME-Autoconverted: from base64 to 8bit by plato.aristotle.net id LAA18937 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Abbott Northwestern Hospital, Mpls MN 1 Siemens Primus 1 Siemens KD2 1 Mevasim, 1 old Ximatron Mk4 -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thu 3/28/2002 8:32 AM To: 'linac' Cc: Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Mar 29 19:35:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16r1E6-0000rc-00; Fri, 29 Mar 2002 19:35:50 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2FB561112F4; Fri, 29 Mar 2002 20:15:51 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA20235 for linac-eng-list; Fri, 29 Mar 2002 13:01:09 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [167.177.94.234] (gw1.allina.com [167.177.39.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA20231 for ; Fri, 29 Mar 2002 13:01:08 -0600 (CST) Received: from xcon1.allina.com (unverified) by (Content Technologies SMTPRS 4.2.1) with ESMTP id ; Fri, 29 Mar 2002 13:00:36 -0600 Received: from xmbc2n1v.allina.com ([167.177.94.226]) by xcon1.allina.com with Microsoft SMTPSVC(5.0.2195.2966); Fri, 29 Mar 2002 13:00:36 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Subject: RE: Suggestion Date: Fri, 29 Mar 2002 13:00:36 -0600 Message-ID: <88B5398F7B21E445B0988422AB0CE9800B38F1@XMBC2N1V.allina.com> Thread-Topic: Suggestion Thread-Index: AcHWcKbHaWbDw5qmTmyl5QlCUHnOhwA4v5hp From: "Delorme, Larry" To: "Rozenblat, Alex" , "linac" X-OriginalArrivalTime: 29 Mar 2002 19:00:36.0862 (UTC) FILETIME=[02E129E0:01C1D754] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by plato.aristotle.net id NAA20232 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="utf-8" Subject: RE: Suggestion Date: Fri, 29 Mar 2002 13:00:36 -0600 Thread-Topic: Suggestion Thread-Index: AcHWcKbHaWbDw5qmTmyl5QlCUHnOhwA4v5hp From: "Delorme, Larry" To: "Rozenblat, Alex" , "linac" X-OriginalArrivalTime: 29 Mar 2002 19:00:36.0862 (UTC) FILETIME=[02E129E0:01C1D754] X-MIME-Autoconverted: from base64 to 8bit by plato.aristotle.net id NAA20232 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Larry De Lorme United Hosspital St Paul, MN All Varian equipment -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thu 3/28/2002 8:32 AM To: 'linac' Cc: Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Mar 30 03:06:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16r8G4-00018E-00; Sat, 30 Mar 2002 03:06:20 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A2D541112F3; Sat, 30 Mar 2002 03:46:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA27202 for linac-eng-list; Fri, 29 Mar 2002 20:25:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r09.mx.aol.com (imo-r09.mx.aol.com [152.163.225.105]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA27198 for ; Fri, 29 Mar 2002 20:25:53 -0600 (CST) From: SMcna39074@aol.com Received: from SMcna39074@aol.com by imo-r09.mx.aol.com (mail_out_v32.5.) id 4.11f.e233efa (16636); Fri, 29 Mar 2002 21:25:10 -0500 (EST) Message-ID: <11f.e233efa.29d67c06@aol.com> Date: Fri, 29 Mar 2002 21:25:10 EST Subject: Re: Suggestion To: Sidney.Carfoot@cd-tr.wales.nhs.uk Cc: linac-eng@plato.aristotle.net ('Linac Eng') MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_11f.e233efa.29d67c06_boundary" X-Mailer: AOL 6.0 for Windows XP US sub 50 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: SMcna39074@aol.com Date: Fri, 29 Mar 2002 21:25:10 EST Subject: Re: Suggestion To: Sidney.Carfoot@cd-tr.wales.nhs.uk Cc: linac-eng@plato.aristotle.net ('Linac Eng') Content-Type: multipart/alternative; boundary="part1_11f.e233efa.29d67c06_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_11f.e233efa.29d67c06_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit varian only --part1_11f.e233efa.29d67c06_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit varian only --part1_11f.e233efa.29d67c06_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 01 13:52:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16s0Mr-0004Jc-00; Mon, 01 Apr 2002 13:52:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C7C981112F2; Mon, 1 Apr 2002 13:32:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA06302 for linac-eng-list; Mon, 1 Apr 2002 06:12:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA06298 for ; Mon, 1 Apr 2002 06:11:58 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Mon, 1 Apr 2002 07:13:17 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C4AA@beatrice.trcc.org> From: "Hughes, William H." To: "'Bitler, Richard L'" , "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Mon, 1 Apr 2002 07:13:11 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'Bitler, Richard L'" , "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Mon, 1 Apr 2002 07:13:11 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 3 HE, 3LE, 1 Kermath sim, 1 Ximatron, 1 engineer. Bill Hughes Regional Cancer Center Erie, Pa. -----Original Message----- From: Bitler, Richard L [mailto:RLBitler@LANCASTERGENERAL.ORG] Sent: Thursday, March 28, 2002 2:06 PM To: 'Rozenblat, Alex'; 'linac' Subject: RE: Suggestion Varian Rick Bitler Lancaster General Hospital Lancaster, PA > -----Original Message----- > From: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] > Sent: Thursday, March 28, 2002 09:32 > To: 'linac' > Subject: Suggestion > > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service > - > name only not quantity - it would give us brake down of the list > population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 01 17:09:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16s3Qw-0004R2-00; Mon, 01 Apr 2002 17:09:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 74EDB1112F2; Mon, 1 Apr 2002 16:49:13 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA14049 for linac-eng-list; Mon, 1 Apr 2002 09:20:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from radoncnt1.fccc.edu (radoncnt1.fccc.edu [131.249.10.49]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA14041 for ; Mon, 1 Apr 2002 09:20:06 -0600 (CST) Received: by radoncnt1.fccc.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 1 Apr 2002 10:19:09 -0500 Message-ID: From: "Liounis, Dave" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Preliminary results. Date: Mon, 1 Apr 2002 07:59:13 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Liounis, Dave" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Preliminary results. Date: Mon, 1 Apr 2002 07:59:13 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave Liounis Fox Chase Cancer Center Department of Radiation Oncology Engineering 215-728-2997 D_LIOUNIS@FCCC.EDU 3 Siemens Primus 1 Siemens Primart 1 Siemens Simview NT 1 Marconi PQ5000 CT Sim 1 Nucletron HDR 1 Marconi Proview Open MRI Simulator -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Thursday, March 28, 2002 2:00 PM To: 'linac' Subject: Preliminary results. RE: suggestion. Hello, everyone Now I got some life. Thank you very much. I thought that everyone will reply to the list (click button "Reply to all") and this will create some lively discussion and some reading material. But it's all right this way too. So far I got 30 replies and they keep coming. After long week-end I will try to find time to summarise info and release it for everyone. As a hint: now I know why Varian questions get lively discussions all the time, put aside LP(M)O. Have a happy Passover and Easter. Regards, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 01 18:24:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16s4bU-0004Tn-00; Mon, 01 Apr 2002 18:24:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B26E21112F2; Mon, 1 Apr 2002 18:04:11 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA17381 for linac-eng-list; Mon, 1 Apr 2002 10:43:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from larch.cc.uic.edu (larch.cc.uic.edu [128.248.155.164]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA17375 for ; Mon, 1 Apr 2002 10:43:32 -0600 (CST) Received: (qmail 19655 invoked from network); 1 Apr 2002 16:43:26 -0000 Received: from uicmc53.hospital.uic.edu (128.248.203.53) by larch.cc.uic.edu with SMTP; 1 Apr 2002 16:43:26 -0000 Received: by uicmc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 1 Apr 2002 10:44:35 -0600 Message-ID: <3150ED7739AFD1119105000629B0382F015C2E42@uicmc53.hospital.uic.edu> From: "Bisevac, Simeon" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Suggestion Date: Mon, 1 Apr 2002 10:44:35 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bisevac, Simeon" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Suggestion Date: Mon, 1 Apr 2002 10:44:35 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk All Varian. 2100EX s XIM CDX Simeon Bisevac University of Illinois Chicago, IL ***************************EMAIL DISCLAIMER*************************** This e-mail and any files transmitted with it may be confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient or the individual responsible for delivering the e-mail to the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is strictly prohibited. If you have received this e-mail in error, please delete it and notify the sender or contact Health Information Management 312.996.3941. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 01 23:42:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16s9ZG-0004ib-00; Mon, 01 Apr 2002 23:42:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F2D0A1112F2; Mon, 1 Apr 2002 22:39:39 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA26392 for linac-eng-list; Mon, 1 Apr 2002 15:19:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailm2.adhb.govt.nz ([203.97.243.106]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA26388 for ; Mon, 1 Apr 2002 15:19:30 -0600 (CST) Received: from exchange02.ahsl.co.nz (not verified[10.30.2.23]) by mailm2.adhb.govt.nz with MailMarshal (4,0,6,0) id ; Tue, 02 Apr 2002 09:17:53 +1200 Received: by EXCHANGE02 with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 09:07:58 +1200 Message-ID: From: Kerry Clark To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Tue, 2 Apr 2002 09:19:59 +1200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Kerry Clark To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Suggestion Date: Tue, 2 Apr 2002 09:19:59 +1200 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 6 Varian Linacs (4 with MLC/EPI) 2 sims (1 Varian 1 Picker) 1 Pantak Kerry > -----Original Message----- > From: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] > Sent: Friday, 29 March 2002 02:32 > To: 'linac' > Subject: Suggestion > > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service > - > name only not quantity - it would give us brake down of the list > population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 02:17:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sByu-0004qt-00; Tue, 02 Apr 2002 02:17:00 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F0AF31112F2; Tue, 2 Apr 2002 01:14:17 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA05510 for linac-eng-list; Mon, 1 Apr 2002 17:57:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from burnia.dmz.health.nsw.gov.au (burnia.dmz.health.nsw.gov.au [203.5.110.252]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id RAA05506 for ; Mon, 1 Apr 2002 17:57:23 -0600 (CST) Received: by burnia.dmz.health.nsw.gov.au; (5.65v4.0/1.3/10May95) id AA18572; Tue, 2 Apr 2002 09:56:50 +1000 Received: from mxscan ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.0-24 #44005) with SMTP id <01KG319TS6MI0030PH@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Tue, 02 Apr 2002 09:56:45 -0500 (EST) Received: from DOH_HUB-Message_Server by doh.health.nsw.gov.au with Novell_GroupWise; Tue, 02 Apr 2002 09:51:22 +1000 Date: Tue, 02 Apr 2002 09:56:13 +1000 From: Vince Reynolds Subject: Re: Suggestion To: linac-eng@plato.aristotle.net, Alex.Rozenblat@tsrcc.on.ca Message-Id: Mime-Version: 1.0 X-Mailer: Novell GroupWise 5.5.2 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA05507 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Apr 2002 09:56:13 +1000 From: Vince Reynolds Subject: Re: Suggestion To: linac-eng@plato.aristotle.net, Alex.Rozenblat@tsrcc.on.ca Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA05507 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day All Royal North Shore Hospital Sydney Varian! 2100CD 600C 1800 Simulator >>> "Rozenblat, Alex" 03/29/02 12:32am >>> Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto ********************************************************************* This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health. ********************************************************************* 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 07:59:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sHKU-0005WO-00; Tue, 02 Apr 2002 07:59:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E86651112F2; Tue, 2 Apr 2002 06:56:54 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA18421 for linac-eng-list; Mon, 1 Apr 2002 23:37:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA18417 for ; Mon, 1 Apr 2002 23:37:52 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 07:36:55 +0200 Message-ID: <9D894AB8D748D3118A1800508B073AE601A492A6@CLV4> From: Lindroth Bernt MFT CLV To: "'Rozenblat, Alex'" Cc: "'Linac-eng'" Subject: SV: Suggestion Date: Tue, 2 Apr 2002 07:36:53 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id XAA18418 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Lindroth Bernt MFT CLV To: "'Rozenblat, Alex'" Cc: "'Linac-eng'" Subject: SV: Suggestion Date: Tue, 2 Apr 2002 07:36:53 +0200 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id XAA18418 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian Bernt Lindroth Centralhospital in Vaxjo, Sweden P.S. Response? If you are referring to your mail about lubrication etc. I have seen at least 5 answers.D.S. -----Ursprungligt meddelande----- Från: Rozenblat, Alex [SMTP:Alex.Rozenblat@tsrcc.on.ca] Skickat: den 28 mars 2002 15:32 Till: 'linac' Ämne: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 08:33:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sHrB-0005e6-00; Tue, 02 Apr 2002 08:33:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 851F21112F3; Tue, 2 Apr 2002 07:30:41 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id AAA19273 for linac-eng-list; Tue, 2 Apr 2002 00:15:27 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from jess.haukeland.no (jess.haukeland.no [161.4.81.13]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id AAA19269 for ; Tue, 2 Apr 2002 00:15:25 -0600 (CST) Received: (qmail 23457 invoked from network); 2 Apr 2002 06:15:23 -0000 Received: from unknown (HELO alf.ihelse.net) (161.4.3.47) by jess.haukeland.no with SMTP; 2 Apr 2002 06:15:23 -0000 content-class: urn:content-classes:message Subject: Suggestion MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Date: Tue, 2 Apr 2002 08:15:21 +0200 Disposition-Notification-To: "Henrik Stensaker" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Message-ID: <05B9BD272EEF3040B9DE4BCAFD0432E90D76A0@alf.ihelse.net> Thread-Topic: IS Suggestion Thread-Index: AcHaDcTz/wSCYzg6RjmLAw4kifwyZw== From: "Henrik Stensaker" To: "Linac-eng Mailingliste (E-post)" X-VNH: Approved Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id AAA19270 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Subject: Suggestion Content-Type: text/plain; charset="iso-8859-1" Date: Tue, 2 Apr 2002 08:15:21 +0200 Disposition-Notification-To: "Henrik Stensaker" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Thread-Topic: IS Suggestion Thread-Index: AcHaDcTz/wSCYzg6RjmLAw4kifwyZw== From: "Henrik Stensaker" To: "Linac-eng Mailingliste (E-post)" X-VNH: Approved X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id AAA19270 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Haukeland University Hospital, Bergen, Norway: Linacs: 3 Varian, 1 GE Saturne, 1 BBC Simulators: 2 Varian Ximatrons Gammaknife: Elekta Afterloader: Gammamed CT: GE Best regards, Henrik Stensaker -----Opprinnelig melding----- Fra: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sendt: 28. mars 2002 15:32 Til: 'linac' Emne: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 09:22:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sIcX-00062A-00; Tue, 02 Apr 2002 09:22:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9BB241112F3; Tue, 2 Apr 2002 08:19:37 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA20381 for linac-eng-list; Tue, 2 Apr 2002 01:03:07 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA20377 for ; Tue, 2 Apr 2002 01:03:06 -0600 (CST) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16sIJt-0004i2-00; Tue, 02 Apr 2002 08:03:05 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A2000027C53 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 08:03:05 +0100 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C92086F00268887 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 08:03:05 +0100 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 08:02:29 +0100 Message-ID: <37106221CAA3D511AC1800508BD316030873A6@OBERON> From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: RE: Suggestion Date: Tue, 2 Apr 2002 08:02:34 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: RE: Suggestion Date: Tue, 2 Apr 2002 08:02:34 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 4 Elekta Linacs 1 Nucletron Simulator 1 Pantak SXR 1 Siemens DXR Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: 28 March 2002 14:32 To: 'linac' Subject: Suggestion Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 10:25:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sJbc-0006jH-00; Tue, 02 Apr 2002 10:25:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F5861112F2; Tue, 2 Apr 2002 09:21:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA21868 for linac-eng-list; Tue, 2 Apr 2002 02:03:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id CAA21864 for ; Tue, 2 Apr 2002 02:03:26 -0600 (CST) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Tue, 2 Apr 2002 10:03:05 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 10:03:05 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A6E4@exchange-5.orebroll.se> To: linac-eng@plato.aristotle.net Subject: SV: Suggestion Date: Tue, 2 Apr 2002 10:03:01 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id CAA21865 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: linac-eng@plato.aristotle.net Subject: SV: Suggestion Date: Tue, 2 Apr 2002 10:03:01 +0200 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id CAA21865 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian only. University Hospital of Örebro, Sweden. Tel. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 10:37:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sJmm-0006pO-00; Tue, 02 Apr 2002 10:37:00 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1588E1112F3; Tue, 2 Apr 2002 09:34:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA22125 for linac-eng-list; Tue, 2 Apr 2002 02:15:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA22121 for ; Tue, 2 Apr 2002 02:15:56 -0600 (CST) From: glynn.wilson@sth.nhs.uk Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16sJRu-0001Nt-00; Tue, 02 Apr 2002 09:15:26 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C81284400242420 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 09:15:26 +0100 Received: from bilbo.wph.trent.nhs.uk (212.196.142.129) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C92086F0026B0A6 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 09:15:26 +0100 Received: by bilbo.wph.trent.nhs.uk with Internet Mail Service (5.5.2232.9) id ; Tue, 2 Apr 2002 09:11:54 +0100 Message-ID: <697DE9C94DFED211A6DB00A0C9067D874093B4@bilbo.wph.trent.nhs.uk> To: linac-eng@plato.aristotle.net Subject: SUGGESTION Date: Tue, 2 Apr 2002 09:11:53 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: glynn.wilson@sth.nhs.uk To: linac-eng@plato.aristotle.net Subject: SUGGESTION Date: Tue, 2 Apr 2002 09:11:53 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 2 VARIAN 600C 3 VARIAN 2100C 1 VARIAN XIMATRON 2 PANTAK GLYNN WESTON PARK SHEFFIELD UK 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 10:53:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sK2o-0006vd-00; Tue, 02 Apr 2002 10:53:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 695271112F2; Tue, 2 Apr 2002 09:50:50 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA22578 for linac-eng-list; Tue, 2 Apr 2002 02:35:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from eigg.abel.net.uk (eigg.abel.net.uk [195.72.113.1]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id CAA22574 for ; Tue, 2 Apr 2002 02:35:18 -0600 (CST) Received: (qmail 3844 invoked from network); 2 Apr 2002 08:34:46 -0000 Received: from ppp-1-140.5800-9.telinco.net (HELO rtphys) (212.1.136.140) by smtp0.abel.net.uk with SMTP; 2 Apr 2002 08:34:46 -0000 Message-ID: <010601c1da21$1b488d00$8c8801d4@abel.co.uk> From: "Radiotherapy Physics - RSH" To: "Rozenblat, Alex" Cc: References: Subject: Re: Suggestion Date: Tue, 2 Apr 2002 09:32:09 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapy Physics - RSH" To: "Rozenblat, Alex" Cc: Subject: Re: Suggestion Date: Tue, 2 Apr 2002 09:32:09 +0100 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Alex & list Royal Shrewsbury Hospital, UK Linacs: Varian 2100CD with MLC, PVI Elekta 75-5 Sim: Varian Xim EX2 with CT Ortho: Gulmay 3300 Cheers John Macmillan ----- Original Message ----- From: Rozenblat, Alex To: 'linac' Sent: Thursday, March 28, 2002 3:32 PM Subject: Suggestion > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service - > name only not quantity - it would give us brake down of the list population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 11:34:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sKgV-0007Kr-00; Tue, 02 Apr 2002 11:34:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 589651112F2; Tue, 2 Apr 2002 10:31:51 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA24489 for linac-eng-list; Tue, 2 Apr 2002 03:16:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA24485 for ; Tue, 2 Apr 2002 03:16:45 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16sKFq-00032I-00; Tue, 02 Apr 2002 10:07:02 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A200002C02D for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 10:07:02 +0100 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C92086F0026DE48 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 10:07:02 +0100 X-Internal-ID: 3C9ADCFD00028AE9 Received: from theta.velindre-tr.wales.nhs.uk (137.11.128.23) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 2 Apr 2002 10:02:55 +0100 Received: by theta.velindre-tr.wales.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 10:05:54 +0100 Message-ID: From: Stephen Hayes To: "'linac-eng@plato.aristotle.net'" Subject: Suggestion Date: Tue, 2 Apr 2002 10:05:53 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3C9ADCFD00028AE9 From: Stephen Hayes To: "'linac-eng@plato.aristotle.net'" Subject: Suggestion Date: Tue, 2 Apr 2002 10:05:53 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian 2x 2100C 2x 2100CD with 80 leaf and PV 1x 600C Stephen Hayes Wales UK 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 11:58:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sL3g-0007bT-00; Tue, 02 Apr 2002 11:58:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3F2731112F2; Tue, 2 Apr 2002 10:55:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA25280 for linac-eng-list; Tue, 2 Apr 2002 03:40:01 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA25265 for ; Tue, 2 Apr 2002 03:40:00 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16sKlF-00048J-00; Tue, 02 Apr 2002 10:39:29 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A200002D6D1 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 10:39:29 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C8D4A87001B879C for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 10:39:29 +0100 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Tue, 02 Apr 2002 10:38:49 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Tue, 02 Apr 2002 10:38:41 +0100 From: "Steve Watkins" Cc: "<" Subject: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA25267 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Apr 2002 10:38:41 +0100 From: "Steve Watkins" Cc: "<" Subject: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA25267 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Cookridge Hospital UK 6 Elektas (4MLC) 2 Varian 600c 1 Nucletron Sim 1 Philips Sim 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 12:28:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sLWw-0007va-00; Tue, 02 Apr 2002 12:28:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 022231112F3; Tue, 2 Apr 2002 11:26:02 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA26379 for linac-eng-list; Tue, 2 Apr 2002 04:12:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from viola.lio.se (viola.lio.se [158.126.248.15]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA26371 for ; Tue, 2 Apr 2002 04:12:37 -0600 (CST) Received: from LIO_S_TFS1 (tfs1.lio.se [158.126.88.66]) by viola.lio.se (8.12.2/8.12.2) with SMTP id g32ACYt7011644 for ; Tue, 2 Apr 2002 12:12:35 +0200 (METDST) Message-Id: From: Viking Eilert Date: Tue, 2 Apr 2002 12:17:06 +0200 To: linac-eng@plato.aristotle.net Subject: SV: suggestion MIME-version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Mailer: TFS Secure Messaging /320000000/450000208/450800090/450300029/ X-Mailer: Version 4.7 Build 103 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA26372 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Viking Eilert Date: Tue, 2 Apr 2002 12:17:06 +0200 To: linac-eng@plato.aristotle.net Subject: SV: suggestion Content-Type: text/plain; charset=ISO-8859-1 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA26372 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian only ( 4 accel + 1 simul) Universitetssjukhuset i Linköping *** Eilert Viking 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 13:03:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sM4k-0008LM-00; Tue, 02 Apr 2002 13:03:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7D7121112F2; Tue, 2 Apr 2002 12:00:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA27422 for linac-eng-list; Tue, 2 Apr 2002 04:42:57 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.rz.uni-ulm.de (gemini.rz.uni-ulm.de [134.60.246.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA27418 for ; Tue, 2 Apr 2002 04:42:55 -0600 (CST) From: roland.ritter@medizin.uni-ulm.de Received: from l1000.krz.klinik.uni-ulm.de (apollo.medizin.uni-ulm.de [134.60.50.14]) by mail.rz.uni-ulm.de (8.12.1/8.12.1) with ESMTP id g32Agpap024841 for ; Tue, 2 Apr 2002 12:42:53 +0200 (MEST) Received: from viruswall ([192.168.2.11]) by l1000.krz.klinik.uni-ulm.de (Netscape Messaging Server 3.5) with SMTP id AAA2059 for ; Tue, 2 Apr 2002 12:41:57 +0200 Received: from STR/SpoolDir by str.str.klinik.uni-ulm.de (Mercury 1.48); 2 Apr 02 12:39:57 +0100 Received: from SpoolDir by STR (Mercury 1.48); 2 Apr 02 12:39:54 +0100 To: linac-eng@plato.aristotle.net Date: Tue, 2 Apr 2002 12:39:44 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Suggestion X-mailer: Pegasus Mail for Windows (v3.01d) Message-ID: <52E5C8E4E08@str.str.klinik.uni-ulm.de> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: roland.ritter@medizin.uni-ulm.de To: linac-eng@plato.aristotle.net Date: Tue, 2 Apr 2002 12:39:44 +0100 Content-type: text/plain; charset=US-ASCII Subject: Suggestion Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk VARIAN 2 2300CD 1 600C all with 80 leaf MLC and PV 1 Ximatron Roland Ritter Department of Radiation Oncology University Hospital Ulm, Germany 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 13:56:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sMtZ-0000NL-00; Tue, 02 Apr 2002 13:56:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 812651112F2; Tue, 2 Apr 2002 12:53:29 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA29049 for linac-eng-list; Tue, 2 Apr 2002 05:37:56 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail03.svc.cra.dublin.eircom.net (mail03.svc.cra.dublin.eircom.net [159.134.118.19]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id FAA29045 for ; Tue, 2 Apr 2002 05:37:55 -0600 (CST) Received: (qmail 87891 messnum 522944 invoked from network[159.134.169.43/p299.as1.prp.dublin.eircom.net]); 2 Apr 2002 11:37:23 -0000 Received: from p299.as1.prp.dublin.eircom.net (HELO vxs) (159.134.169.43) by mail03.svc.cra.dublin.eircom.net (qp 87891) with SMTP; 2 Apr 2002 11:37:23 -0000 Message-ID: <00b001c1da3b$0fa85420$260c350a@vxs> From: "Vincent Smith" To: Subject: Radiotherapy Equipment Date: Tue, 2 Apr 2002 12:38:57 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00AD_01C1DA43.5BB77BE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Vincent Smith" To: Subject: Radiotherapy Equipment Date: Tue, 2 Apr 2002 12:38:57 +0100 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00AD_01C1DA43.5BB77BE0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_00AD_01C1DA43.5BB77BE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello Alex Here in St. Luke's Hospital in Dublin Ireland we have the following = Equipment: 2 X Elekta RTD with iView GT and MLC 2 X Elekta SLi with iView and MLC 2 X Varian 2100CD with PV and MLC 1 X Philips SLS38 Simulator 1 X Varian Ximatron CDX Simulator 1 X Philips Tomoscan 5000 CT 1 X Theratronics Elite 80 1 X Nucletron LDR 1 X Nucletron HDR 1 x Gulmay Medical D 3225 Orthovoltage Like all the rest we also look after anything that lights up or beeps = and squeaks from Theatre to radios owned by patients. Vincent Smith Senior Clinical Engineering Technician St. Luke's Hospital=20 Dublin=20 Ireland P.S. NO the salary isn't as large as the job title ! ------=_NextPart_000_00AD_01C1DA43.5BB77BE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hello Alex
    Here in St. Luke's Hospital in Dublin = Ireland we=20 have the following Equipment:
    2 X Elekta RTD with iView GT and=20 MLC
    2 X Elekta SLi with iView and = MLC
    2 X Varian 2100CD with PV and = MLC
    1 X Philips SLS38 = Simulator
    1 X Varian Ximatron CDX = Simulator
    1 X Philips Tomoscan 5000 = CT
    1 X Theratronics Elite 80
    1 X Nucletron LDR
    1 X Nucletron HDR
    1 x Gulmay Medical D 3225 = Orthovoltage
     
    Like all the rest we also look after = anything that=20 lights up or beeps and squeaks from Theatre to radios owned by=20 patients.
     
    Vincent Smith
    Senior Clinical Engineering = Technician
    St. Luke's Hospital
    Dublin
    Ireland
     
    P.S.  NO the salary isn't as large = as the job=20 title !
    ------=_NextPart_000_00AD_01C1DA43.5BB77BE0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 14:08:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sN5D-0000RE-00; Tue, 02 Apr 2002 14:08:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 83BEA1112F2; Tue, 2 Apr 2002 13:05:31 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA29236 for linac-eng-list; Tue, 2 Apr 2002 05:45:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc51.attbi.com (rwcrmhc51.attbi.com [204.127.198.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA29232 for ; Tue, 2 Apr 2002 05:45:33 -0600 (CST) Received: from c1784162a ([12.247.221.153]) by rwcrmhc51.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020402114502.EWUK7801.rwcrmhc51.attbi.com@c1784162a> for ; Tue, 2 Apr 2002 11:45:02 +0000 Message-ID: <001201c1da3c$0e1c1960$99ddf70c@mshome.net> From: "Rich Kimball" To: References: Subject: Re: suggestion Date: Tue, 2 Apr 2002 05:46:40 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: Subject: Re: suggestion Date: Tue, 2 Apr 2002 05:46:40 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Uh....guys....do we have enough suggestions now? This is as bad as the spam mail. Rich Kimball 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 14:15:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sNBy-0000UT-00; Tue, 02 Apr 2002 14:15:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5B6011112F2; Tue, 2 Apr 2002 13:12:30 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id FAA29535 for linac-eng-list; Tue, 2 Apr 2002 05:55:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.rss.fr ([193.218.15.60]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA29529 for ; Tue, 2 Apr 2002 05:55:53 -0600 (CST) Received: from cluster.rss.fr (193.218.13.151) by smtp.rss.fr (5.1.071) id 3C73B7EF0047A5D9 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 13:53:44 +0200 Received: from fwpai2.rss.fr (127.0.0.1) by cluster.rss.fr (5.1.071) id 3CA2DFEC000E5B05 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 13:53:44 +0200 Received: by fwpai2.rss.fr; id NAA03143; Tue, 2 Apr 2002 13:53:43 +0200 (MET DST) Received: from unknown(10.40.36.3) by fwpai2.rss.fr via smap (4.0) id xma003105; Tue, 2 Apr 2002 13:53:22 +0200 Message-ID: <003e01c1da3d$4cea2c80$329b10ac@Jack> From: "Radiotherapie Epinal" To: Subject: suggestion Date: Tue, 2 Apr 2002 13:55:30 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapie Epinal" To: Subject: suggestion Date: Tue, 2 Apr 2002 13:55:30 +0200 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 1 clinac 2100 C/D Varian millenium mlc 120 portal vision 1 clinac 600 C Varian 1 simulator SLS 15 Philips 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 14:35:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sNVm-0000cZ-00; Tue, 02 Apr 2002 14:35:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F314C1112F2; Tue, 2 Apr 2002 13:32:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA00114 for linac-eng-list; Tue, 2 Apr 2002 06:10:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbhc.ns.ca (cbhc.ns.ca [142.176.129.243]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA00110 for ; Tue, 2 Apr 2002 06:10:34 -0600 (CST) Received: by mail.cbhc.ns.ca from localhost (router,SLMail V3.2); Tue, 02 Apr 2002 08:10:52 -0400 Received: from jyorke [128.222.7.122] by mail.cbhc.ns.ca [0] (SLmail 3.2.3113) with SMTP id 71E9DCA4425411D69CED0002B38BC105 for ; Tue, 02 Apr 2002 08:10:52 -0400 From: "Greg MacKinnon" To: "LinacEng" Subject: Re: Suggestion Date: Tue, 2 Apr 2002 08:09:12 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-SLUIDL: 76CD9623-425411D6-9CED0002-B38BC105 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Greg MacKinnon" To: "LinacEng" Subject: Re: Suggestion Date: Tue, 2 Apr 2002 08:09:12 -0400 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-SLUIDL: 76CD9623-425411D6-9CED0002-B38BC105 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All, Linacs: Varian 2100CD with 80leaf MLC, PVI Varian 600CD with 52leaf MLC, PVI Sim: Varian Ximtron __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8000 x2163 fax: (902)567-8075 email: mackinnongreg@cbhc.ns.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 14:51:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sNlP-0000mg-00; Tue, 02 Apr 2002 14:51:51 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4B2041112F2; Tue, 2 Apr 2002 13:49:07 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA00827 for linac-eng-list; Tue, 2 Apr 2002 06:30:36 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA00821 for ; Tue, 2 Apr 2002 06:30:34 -0600 (CST) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Tue, 2 Apr 2002 08:30:02 -0400 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Tue, 02 Apr 2002 08:28:26 -0400 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 02 Apr 2002 08:27:54 -0400 From: "Marvin Rathburn" To: Subject: suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA00823 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Apr 2002 08:27:54 -0400 From: "Marvin Rathburn" To: Subject: suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA00823 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 1- Varian 2100c/d with 80 leaf mlc 1- mevatron low energy 1- Elite 100 cobalt 1- Phillips RT -250 1- Seimens simulator 1- Nucletron L.D.R. Thanks to all on the list for the helpful information that you post through your question and answer sessions and debates. Marvin Rathburn Saint John Regional Hospital Saint John New Brunswick Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 15:31:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sONS-0001Jp-00; Tue, 02 Apr 2002 15:31:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8B3401112F7; Tue, 2 Apr 2002 14:28:25 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA02707 for linac-eng-list; Tue, 2 Apr 2002 07:06:49 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r10.mx.aol.com (imo-r10.mx.aol.com [152.163.225.106]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02703 for ; Tue, 2 Apr 2002 07:06:48 -0600 (CST) From: jyorke5703@aol.com Received: from jyorke5703@aol.com by imo-r10.mx.aol.com (mail_out_v32.5.) id y.5f.2523140f (16932) for ; Tue, 2 Apr 2002 08:06:12 -0500 (EST) Message-ID: <5f.2523140f.29db06c4@aol.com> Date: Tue, 2 Apr 2002 08:06:12 EST Subject: (no subject) To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jyorke5703@aol.com Date: Tue, 2 Apr 2002 08:06:12 EST Subject: (no subject) To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk No Rich, this is great.... Keep the info coming, its nice to see who is out there and what is being serviced. Jeremy 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 16:06:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sOvq-0001fT-00; Tue, 02 Apr 2002 16:06:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AA98B1112F2; Tue, 2 Apr 2002 15:03:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA04108 for linac-eng-list; Tue, 2 Apr 2002 07:46:59 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA04104 for ; Tue, 2 Apr 2002 07:46:57 -0600 (CST) From: glynn.wilson@sth.nhs.uk Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16sOcF-0002nK-00; Tue, 02 Apr 2002 14:46:27 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A20000373B8 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 14:46:26 +0100 Received: from bilbo.wph.trent.nhs.uk (212.196.142.129) by relay.nhs.uk (Syntegra-4 6.0.037) id 3C8D4B880018BA50 for linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 14:46:27 +0100 Received: by bilbo.wph.trent.nhs.uk with Internet Mail Service (5.5.2232.9) id ; Tue, 2 Apr 2002 14:42:55 +0100 Message-ID: <697DE9C94DFED211A6DB00A0C9067D874093BA@bilbo.wph.trent.nhs.uk> To: linac-eng@plato.aristotle.net Subject: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 14:42:51 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: glynn.wilson@sth.nhs.uk To: linac-eng@plato.aristotle.net Subject: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 14:42:51 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Group We had a new 2100CD installed # 1766 last Aug The water pump failed on the set just before Christmas. Varian replaced it under warranty. I stripped the old pump and motor and found that the motor had been filled with black graphite grease instead of water as a lubricant. The grease had spilled out into the water system and affected the rubber components. Particles had then seized the pump. The new pump fitted by Varian lasted 6 weeks and again seized. Investigations showed that grease had attacked the rubber hoses. System was flushed using mild detergent and then neutralized. The hoses were then replaced. Low flow had damaged the output stages of the RF DRIVER and it had to be replaced. Time will tell what other damage has been done! Thankfully all done under warranty. Just posting this as a warning in case there are more pumps out there with grease filled motors. Glynn Wilson Weston Park Hospital Sheffield UK 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 16:31:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sPJT-0001rk-00; Tue, 02 Apr 2002 16:31:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2582A1112F2; Tue, 2 Apr 2002 15:28:23 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA05249 for linac-eng-list; Tue, 2 Apr 2002 08:07:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from guppy.vub.ac.be (guppy.vub.ac.be [134.184.129.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05243 for ; Tue, 2 Apr 2002 08:07:27 -0600 (CST) Received: from inf07.az.vub.ac.be (az.vub.ac.be [134.184.201.11]) by guppy.vub.ac.be (8.9.1b+Sun/3.17.1.ap (guppy)) id QAA14078; Tue, 2 Apr 2002 16:06:16 +0200 (MET DST) for Received: from inf235.az.vub.ac.be (mailhost [144.248.16.235]) by inf07.az.vub.ac.be (8.10.2+Sun/8.9.3) with ESMTP id g32E7M707160 for ; Tue, 2 Apr 2002 16:07:22 +0200 (MEST) Received: (from uucp@localhost) by inf235.az.vub.ac.be (8.8.8+Sun/8.8.8) id QAA12785 for ; Tue, 2 Apr 2002 16:09:24 +0200 (MET DST) Received: from pluto-qe0.az.vub.ac.be(144.248.16.40) by inf235.az.vub.ac.be via csmap (V4.1) id srcAAAIEaa_y; Tue, 2 Apr 02 16:09:23 +0200 Received: from orad1 (conr25 [144.248.130.153]) by pluto-qe0.az.vub.ac.be (8.9.3+Sun/8.9.1) with SMTP id QAA12918 for ; Tue, 2 Apr 2002 16:07:20 +0200 (MET DST) Message-Id: <200204021407.QAA12918@pluto-qe0.az.vub.ac.be> Date: Tue, 2 Apr 2002 16:01:41 +0100 (WET DST) From: Iwein Van de Vondel Reply-To: Iwein Van de Vondel Subject: RE: Suggestion To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: TEXT/plain; charset=us-ascii Content-MD5: PqARnllMrXuADiMTxQJViA== X-Mailer: dtmail 1.2.1 CDE Version 1.2.1 SunOS 5.6 sun4u sparc Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 2 Apr 2002 16:01:41 +0100 (WET DST) From: Iwein Van de Vondel Reply-To: Iwein Van de Vondel Subject: RE: Suggestion To: linac-eng@plato.aristotle.net Content-Type: TEXT/plain; charset=us-ascii Content-MD5: PqARnllMrXuADiMTxQJViA== Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Academic Hospital- VUB Brussels, BELGIUM 1 Elekta (SL15/MLCi, iView and Hercules treatment couch with RCU) 1 Elekta (Sli/MLCi, iView and Precise treatment couch) 1 Novalis (Micro-multileaf with Novalis body "realtime IR-tracking and X-ray imaging") 1 Elekta Simulator SLS23 with CT-option 1 Elekta Simulator K590 1 Nucletron HDR-afterloader microselectron V2 1 Siemens Dermopan ***************************************** * Iwein Van de Vondel * * Engineer Radiotherapy * * AZ VUB * * Laarbeeklaan 101 * * 1090 Brussel * * BELGIUM * * Tel: +32 2 477 61 30 * * Fax: +32 2 477 52 39 * ***************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 18:56:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sRa9-0002XH-00; Tue, 02 Apr 2002 18:56:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8119E1112F2; Tue, 2 Apr 2002 17:53:44 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA12423 for linac-eng-list; Tue, 2 Apr 2002 10:22:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA12416 for ; Tue, 2 Apr 2002 10:22:28 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 08:21:57 -0800 Message-ID: From: "Wilson, Jim" To: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 08:21:03 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 08:21:03 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have had the same problem for the last 3 years. We have had to replace the pump every 6-8 months. The Franklin motor somehow comes apart and fills the tank with black goo. We have had no other problems associated with this failure. We have not changed the type of water we are using or have done anything else different that we can think of to cause this. -----Original Message----- From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] Sent: Tuesday, April 02, 2002 5:43 AM To: linac-eng@plato.aristotle.net Subject: WATER PUMP VARIAN 2100C Hi Group We had a new 2100CD installed # 1766 last Aug The water pump failed on the set just before Christmas. Varian replaced it under warranty. I stripped the old pump and motor and found that the motor had been filled with black graphite grease instead of water as a lubricant. The grease had spilled out into the water system and affected the rubber components. Particles had then seized the pump. The new pump fitted by Varian lasted 6 weeks and again seized. Investigations showed that grease had attacked the rubber hoses. System was flushed using mild detergent and then neutralized. The hoses were then replaced. Low flow had damaged the output stages of the RF DRIVER and it had to be replaced. Time will tell what other damage has been done! Thankfully all done under warranty. Just posting this as a warning in case there are more pumps out there with grease filled motors. Glynn Wilson Weston Park Hospital Sheffield UK **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 19:41:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sSHa-0002ZO-00; Tue, 02 Apr 2002 19:41:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4F7F01112F2; Tue, 2 Apr 2002 18:38:31 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA15693 for linac-eng-list; Tue, 2 Apr 2002 11:18:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA15686 for ; Tue, 2 Apr 2002 11:18:51 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA27037; Tue, 2 Apr 2002 11:24:52 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net, "Wilson, Jim" Date: Tue, 02 Apr 2002 11:18:45 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: Subject: Re: RE: WATER PUMP VARIAN 2100C Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net, "Wilson, Jim" Date: Tue, 02 Apr 2002 11:18:45 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: RE: WATER PUMP VARIAN 2100C Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Wow. 6-8 months sounds like a very short pump life to me. Are they actually failing in that time? I have had the same problems here and have decided to change the water pumps on the Varian machines every year on a PM. Is there any other manufacturer out there utilizing a submersible pump? It just seems like a very bad idea to me. Scot Thiesson Allan Blair Cancer Centre. Regina Sask. Canada 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: >We have had the same problem for the last 3 years. We have had to replace >the pump every 6-8 months. The Franklin motor somehow comes apart and fills >the tank with black goo. We have had no other problems associated with this >failure. We have not changed the type of water we are using or have done >anything else different that we can think of to cause this. > >-----Original Message----- >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] >Sent: Tuesday, April 02, 2002 5:43 AM >To: linac-eng@plato.aristotle.net >Subject: WATER PUMP VARIAN 2100C > > >Hi Group > >We had a new 2100CD installed # 1766 last Aug >The water pump failed on the set just before Christmas. >Varian replaced it under warranty. I stripped the old pump and motor and >found that the motor had been filled with black graphite grease instead of >water as a lubricant. >The grease had spilled out into the water system and affected the rubber >components. Particles had then seized the pump. >The new pump fitted by Varian lasted 6 weeks and again seized. >Investigations showed that grease had attacked the rubber hoses. >System was flushed using mild detergent and then neutralized. The hoses were >then replaced. >Low flow had damaged the output stages of the RF DRIVER and it had to be >replaced. >Time will tell what other damage has been done! >Thankfully all done under warranty. >Just posting this as a warning in case there are more pumps out there with >grease filled motors. > >Glynn Wilson >Weston Park Hospital >Sheffield >UK > >**************************************************************************** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 20:13:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sSmo-0002b8-00; Tue, 02 Apr 2002 20:13:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 087E11112F2; Tue, 2 Apr 2002 19:10:52 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA17146 for linac-eng-list; Tue, 2 Apr 2002 11:48:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA17139 for ; Tue, 2 Apr 2002 11:48:36 -0600 (CST) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g32Hm4H01718; Tue, 2 Apr 2002 11:48:04 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g32Hm4s01710; Tue, 2 Apr 2002 11:48:04 -0600 (CST) Received: through eSafe SMTP Relay 1016464309; Tue Apr 02 11:48:04 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 11:48:04 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E6F@wmhmail.phci.org> From: "Williams, Rod" To: "'Wilson, Jim'" , "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 11:47:53 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DA6E.83CBBDF0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Wilson, Jim'" , "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 11:47:53 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DA6E.83CBBDF0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DA6E.83CBBDF0 Content-Type: text/plain Are you gentleman using the DI tanks that came with the Linac? Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Wilson, Jim [SMTP:JWilson3@providence.org] > Sent: Tuesday, April 02, 2002 10:21 AM > To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net > Subject: RE: WATER PUMP VARIAN 2100C > > We have had the same problem for the last 3 years. We have had to replace > the pump every 6-8 months. The Franklin motor somehow comes apart and > fills > the tank with black goo. We have had no other problems associated with > this > failure. We have not changed the type of water we are using or have done > anything else different that we can think of to cause this. > > -----Original Message----- > From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] > Sent: Tuesday, April 02, 2002 5:43 AM > To: linac-eng@plato.aristotle.net > Subject: WATER PUMP VARIAN 2100C > > > Hi Group > > We had a new 2100CD installed # 1766 last Aug > The water pump failed on the set just before Christmas. > Varian replaced it under warranty. I stripped the old pump and motor and > found that the motor had been filled with black graphite grease instead of > water as a lubricant. > The grease had spilled out into the water system and affected the rubber > components. Particles had then seized the pump. > The new pump fitted by Varian lasted 6 weeks and again seized. > Investigations showed that grease had attacked the rubber hoses. > System was flushed using mild detergent and then neutralized. The hoses > were > then replaced. > Low flow had damaged the output stages of the RF DRIVER and it had to be > replaced. > Time will tell what other damage has been done! > Thankfully all done under warranty. > Just posting this as a warning in case there are more pumps out there with > grease filled motors. > > Glynn Wilson > Weston Park Hospital > Sheffield > UK > > ************************************************************************** > ** > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are > not the intended addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, copy, disclose or > distribute to anyone the message or any information contained in the > message. If you have received this message in error, please immediately > advise the sender by reply email and delete the message. Thank you very > much. > ------_=_NextPart_001_01C1DA6E.83CBBDF0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: WATER PUMP VARIAN 2100C

    Are you gentleman = using the DI tanks that came with the Linac?

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


    ------_=_NextPart_001_01C1DA6E.83CBBDF0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 21:04:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sTZw-0002dp-00; Tue, 02 Apr 2002 21:04:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 379A91112F2; Tue, 2 Apr 2002 20:01:39 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA06952 for linac-eng-list; Tue, 2 Apr 2002 12:41:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA06938 for ; Tue, 2 Apr 2002 12:41:39 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Tue, 2 Apr 2002 12:41:58 -0600 Message-ID: From: "Turner, Guy" To: "'scot thiesson'" , "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net, "Wilson, Jim" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 12:41:57 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'scot thiesson'" , "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net, "Wilson, Jim" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 12:41:57 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk That is a very short pump life. I have a 9 year old 2300 and have never replaced the pump. In general, the water pumps are pretty long lived. I don't think I have ever had one fail in less that 2 or 3 years, typically. -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: Tuesday, April 02, 2002 11:19 AM To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, Jim Subject: Re: RE: WATER PUMP VARIAN 2100C Wow. 6-8 months sounds like a very short pump life to me. Are they actually failing in that time? I have had the same problems here and have decided to change the water pumps on the Varian machines every year on a PM. Is there any other manufacturer out there utilizing a submersible pump? It just seems like a very bad idea to me. Scot Thiesson Allan Blair Cancer Centre. Regina Sask. Canada 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: >We have had the same problem for the last 3 years. We have had to >replace the pump every 6-8 months. The Franklin motor somehow comes >apart and fills the tank with black goo. We have had no other problems >associated with this failure. We have not changed the type of water we >are using or have done anything else different that we can think of to >cause this. > >-----Original Message----- >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] >Sent: Tuesday, April 02, 2002 5:43 AM >To: linac-eng@plato.aristotle.net >Subject: WATER PUMP VARIAN 2100C > > >Hi Group > >We had a new 2100CD installed # 1766 last Aug >The water pump failed on the set just before Christmas. >Varian replaced it under warranty. I stripped the old pump and motor and >found that the motor had been filled with black graphite grease instead of >water as a lubricant. >The grease had spilled out into the water system and affected the rubber >components. Particles had then seized the pump. >The new pump fitted by Varian lasted 6 weeks and again seized. >Investigations showed that grease had attacked the rubber hoses. >System was flushed using mild detergent and then neutralized. The hoses were >then replaced. >Low flow had damaged the output stages of the RF DRIVER and it had to be >replaced. >Time will tell what other damage has been done! >Thankfully all done under warranty. >Just posting this as a warning in case there are more pumps out there with >grease filled motors. > >Glynn Wilson >Weston Park Hospital >Sheffield >UK > >*********************************************************************** >***** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 21:04:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sTZw-0002ds-00; Tue, 02 Apr 2002 21:04:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4E6EA1112F3; Tue, 2 Apr 2002 20:01:39 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA06784 for linac-eng-list; Tue, 2 Apr 2002 12:40:59 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA06774 for ; Tue, 2 Apr 2002 12:40:57 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 13:40:11 -0500 Message-ID: From: "Rozenblat, Alex" To: "'linac'" Subject: Digestion of "suggestion". Date: Tue, 2 Apr 2002 13:40:10 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'linac'" Subject: Digestion of "suggestion". Date: Tue, 2 Apr 2002 13:40:10 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello, untamed minds Here are the results of my "survey". 1. One more time I proved to myself that an initiative is punishable. ("Only former Russian guy has an ability to step into the same pile of shit several times" - modification of an ancient Russian proverb). 2. After sifting through duplicates and triplicates I counted for 93 replies. 3. I was interested in linac statistics only, though I know that we all service lots of other stuff not a wire less complicated than linacs. (I saw everything from CTs to Doctor's Rolex and patients TVs - good for you!) 4. Varian linac was mentioned 78 times; Siemens linac was mentioned 21 time; Electa linac was mentioned 17 times. These numbers have nothing to do with the number of sites we service and the number of linacs under our supervision. It would be too much for me to count sites and linacs. 5. I did not mention some rare "beasts" I found in your replies (what the heck is "BBC"? I hope it's not the BBC) because I wanted to see only breakdown between above mentioned Brands. 6. I don't want to come to any conclusion as far as market is concerned but, I think, the list should put forth some efforts to become more known to our brothers/sisters from other Centres and countries. I just don't believe that there are only about 25 sites around the world, which exploit either Electa or Siemens linacs. 7. Personal note - some of you, guys, are consistently funny. It helps me sometimes to sail though the gloomy day. I wish I had this sense of humour, honestly. I will keep your replies for one week in case somebody is interested in specific details or rare equipment allocation. Shipping and handling charges applied. You may add your state tax on top of mine. Alex Rozenblat, TSRCC, Toronto, Canada 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 21:28:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sTxf-0002fB-00; Tue, 02 Apr 2002 21:28:55 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8D9621112F3; Tue, 2 Apr 2002 20:26:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA15306 for linac-eng-list; Tue, 2 Apr 2002 13:05:18 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA15279 for ; Tue, 2 Apr 2002 13:05:16 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 2 Apr 2002 18:57:47 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Tue, 2 Apr 2002 11:05:23 -0800 Message-ID: From: "Bush, Thomas M." To: "'scot thiesson'" Cc: "'Linac-eng@plato.aristotle.net'" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 11:05:25 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'scot thiesson'" Cc: "'Linac-eng@plato.aristotle.net'" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 11:05:25 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Why all the water pump failures.?!?! Mine are the original Grundfos pumps installed at the time of machine assembly. All three 2100C machines are over 8 years with original pumps. Weird...... Tom Bush -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: Tuesday, April 02, 2002 9:19 AM To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, Jim Subject: Re: RE: WATER PUMP VARIAN 2100C Wow. 6-8 months sounds like a very short pump life to me. Are they actually failing in that time? I have had the same problems here and have decided to change the water pumps on the Varian machines every year on a PM. Is there any other manufacturer out there utilizing a submersible pump? It just seems like a very bad idea to me. Scot Thiesson Allan Blair Cancer Centre. Regina Sask. Canada 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: >We have had the same problem for the last 3 years. We have had to replace >the pump every 6-8 months. The Franklin motor somehow comes apart and fills >the tank with black goo. We have had no other problems associated with this >failure. We have not changed the type of water we are using or have done >anything else different that we can think of to cause this. > >-----Original Message----- >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] >Sent: Tuesday, April 02, 2002 5:43 AM >To: linac-eng@plato.aristotle.net >Subject: WATER PUMP VARIAN 2100C > > >Hi Group > >We had a new 2100CD installed # 1766 last Aug >The water pump failed on the set just before Christmas. >Varian replaced it under warranty. I stripped the old pump and motor and >found that the motor had been filled with black graphite grease instead of >water as a lubricant. >The grease had spilled out into the water system and affected the rubber >components. Particles had then seized the pump. >The new pump fitted by Varian lasted 6 weeks and again seized. >Investigations showed that grease had attacked the rubber hoses. >System was flushed using mild detergent and then neutralized. The hoses were >then replaced. >Low flow had damaged the output stages of the RF DRIVER and it had to be >replaced. >Time will tell what other damage has been done! >Thankfully all done under warranty. >Just posting this as a warning in case there are more pumps out there with >grease filled motors. > >Glynn Wilson >Weston Park Hospital >Sheffield >UK > >*************************************************************************** * >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 22:23:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sUoV-0002ho-00; Tue, 02 Apr 2002 22:23:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 61E911112F2; Tue, 2 Apr 2002 21:20:45 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA24139 for linac-eng-list; Tue, 2 Apr 2002 13:57:27 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24132 for ; Tue, 2 Apr 2002 13:57:25 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 10:11:39 -0800 Message-ID: From: "Wilson, Jim" To: linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 10:10:44 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DA71.B52FE8A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 10:10:44 -0800 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DA71.B52FE8A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DA71.B52FE8A0 Content-Type: text/plain; charset="iso-8859-1" I am using the "large" cannisters that sit in the bottom front of the stand. We had used these for several years prior to the frequent pump failures. -----Original Message----- From: Williams, Rod [mailto:rod.williams@phci.org] Sent: Tuesday, April 02, 2002 9:48 AM To: 'Wilson, Jim'; 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Are you gentleman using the DI tanks that came with the Linac? Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 -----Original Message----- From: Wilson, Jim [SMTP:JWilson3@providence.org] Sent: Tuesday, April 02, 2002 10:21 AM To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C We have had the same problem for the last 3 years. We have had to replace the pump every 6-8 months. The Franklin motor somehow comes apart and fills the tank with black goo. We have had no other problems associated with this failure. We have not changed the type of water we are using or have done anything else different that we can think of to cause this. -----Original Message----- From: glynn.wilson@sth.nhs.uk [ mailto:glynn.wilson@sth.nhs.uk ] Sent: Tuesday, April 02, 2002 5:43 AM To: linac-eng@plato.aristotle.net Subject: WATER PUMP VARIAN 2100C Hi Group We had a new 2100CD installed # 1766 last Aug The water pump failed on the set just before Christmas. Varian replaced it under warranty. I stripped the old pump and motor and found that the motor had been filled with black graphite grease instead of water as a lubricant. The grease had spilled out into the water system and affected the rubber components. Particles had then seized the pump. The new pump fitted by Varian lasted 6 weeks and again seized. Investigations showed that grease had attacked the rubber hoses. System was flushed using mild detergent and then neutralized. The hoses were then replaced. Low flow had damaged the output stages of the RF DRIVER and it had to be replaced. Time will tell what other damage has been done! Thankfully all done under warranty. Just posting this as a warning in case there are more pumps out there with grease filled motors. Glynn Wilson Weston Park Hospital Sheffield UK **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. ------_=_NextPart_001_01C1DA71.B52FE8A0 Content-Type: text/html; charset="iso-8859-1" RE: WATER PUMP VARIAN 2100C
    I am using the "large" cannisters that sit in the bottom front of the stand. We had used these for several years prior to the frequent pump failures.
    -----Original Message-----
    From: Williams, Rod [mailto:rod.williams@phci.org]
    Sent: Tuesday, April 02, 2002 9:48 AM
    To: 'Wilson, Jim'; 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net
    Subject: RE: WATER PUMP VARIAN 2100C

    Are you gentleman using the DI tanks that came with the Linac?

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


    **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much.

    ------_=_NextPart_001_01C1DA71.B52FE8A0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 23:01:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sVOw-0002k3-00; Tue, 02 Apr 2002 23:01:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 15EFB1112F2; Tue, 2 Apr 2002 21:58:24 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA26666 for linac-eng-list; Tue, 2 Apr 2002 14:35:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA26662 for ; Tue, 2 Apr 2002 14:35:28 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Tue, 2 Apr 2002 14:35:46 -0600 Message-ID: From: "Turner, Guy" To: "'Bush, Thomas M.'" Cc: "'Linac-eng@plato.aristotle.net'" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 14:35:44 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Bush, Thomas M.'" Cc: "'Linac-eng@plato.aristotle.net'" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 14:35:44 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I believe someone already hit on the reason - Culligan deionizer tanks. -----Original Message----- From: Bush, Thomas M. [mailto:BushT@shmc.org] Sent: Tuesday, April 02, 2002 1:05 PM To: 'scot thiesson' Cc: 'Linac-eng@plato.aristotle.net' Subject: RE: RE: WATER PUMP VARIAN 2100C Why all the water pump failures.?!?! Mine are the original Grundfos pumps installed at the time of machine assembly. All three 2100C machines are over 8 years with original pumps. Weird...... Tom Bush -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: Tuesday, April 02, 2002 9:19 AM To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, Jim Subject: Re: RE: WATER PUMP VARIAN 2100C Wow. 6-8 months sounds like a very short pump life to me. Are they actually failing in that time? I have had the same problems here and have decided to change the water pumps on the Varian machines every year on a PM. Is there any other manufacturer out there utilizing a submersible pump? It just seems like a very bad idea to me. Scot Thiesson Allan Blair Cancer Centre. Regina Sask. Canada 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: >We have had the same problem for the last 3 years. We have had to >replace the pump every 6-8 months. The Franklin motor somehow comes >apart and fills the tank with black goo. We have had no other problems >associated with this failure. We have not changed the type of water we >are using or have done anything else different that we can think of to >cause this. > >-----Original Message----- >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] >Sent: Tuesday, April 02, 2002 5:43 AM >To: linac-eng@plato.aristotle.net >Subject: WATER PUMP VARIAN 2100C > > >Hi Group > >We had a new 2100CD installed # 1766 last Aug >The water pump failed on the set just before Christmas. >Varian replaced it under warranty. I stripped the old pump and motor and >found that the motor had been filled with black graphite grease instead of >water as a lubricant. >The grease had spilled out into the water system and affected the rubber >components. Particles had then seized the pump. >The new pump fitted by Varian lasted 6 weeks and again seized. >Investigations showed that grease had attacked the rubber hoses. >System was flushed using mild detergent and then neutralized. The hoses were >then replaced. >Low flow had damaged the output stages of the RF DRIVER and it had to be >replaced. >Time will tell what other damage has been done! >Thankfully all done under warranty. >Just posting this as a warning in case there are more pumps out there with >grease filled motors. > >Glynn Wilson >Weston Park Hospital >Sheffield >UK > >*********************************************************************** >**** * >This message is intended for the sole use of the individual and entity >to whom it is addressed, and may contain information that is >privileged, confidential and exempt from disclosure under applicable >law. If you are not the intended addressee, nor authorized to receive >for the intended addressee, you are hereby notified that you may not >use, copy, disclose or distribute to anyone the message or any >information contained in the message. If you have received this >message in error, please immediately advise the sender by reply email >and delete the message. Thank you very much. > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 23:06:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sVTd-0002kC-00; Tue, 02 Apr 2002 23:06:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B90731112F3; Tue, 2 Apr 2002 22:03:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA27063 for linac-eng-list; Tue, 2 Apr 2002 14:43:30 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firewall.midcentral.co.nz (firewall.midcentral.co.nz [210.55.172.66]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA27059 for ; Tue, 2 Apr 2002 14:43:28 -0600 (CST) Received: from pn_nt1.midcentral.co.nz (not verified[10.1.0.1]) by firewall.midcentral.co.nz with MailMarshal (4,2,0,0) id ; Wed, 03 Apr 2002 08:40:55 +1200 Received: by pn_nt1.midcentral.co.nz with Internet Mail Service (5.5.2653.19) id <2BM4PMH0>; Wed, 3 Apr 2002 08:40:55 +1200 Message-ID: <00BE56E17E26D11197CB00805FA6803A04FACA4F@pn_nt1.midcentral.co.nz> From: Keith Croft To: "'linac-eng@plato.aristotle.net'" Subject: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 08:40:54 +1200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Keith Croft To: "'linac-eng@plato.aristotle.net'" Subject: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 08:40:54 +1200 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have had to replace a water pump on our 2100C (Grunfos) - but this was after 10 years of use. Our 600C also has a Grunfos pump (though less pump chambers, so is shorter) and it too has a long servicable history. When we had a problem we were able to replace the motor unit direct from a Grunfos rep here in New Zealand. (Although getting the 110VAC unit did take some time - as NZ has a 230V as its supply.) The only real problem we have had with the water in the 2100C (Serial number 86, installed '90) was a short length of hose that "decayed" internally and let little chunks of rubber circulate throught the system (blocked solid in the filter!). Interestingly other 2100C's of the same vintage in New Zealand had exactly the same problem with the same section of hose. All other hoses appeared to be OK. (we replaced all hoses from locally sourced red rubber "fire" hose - of which we have had no problems.) As an asside, on the Siemens Primus - we had a small section of black hose that we took off as we noticed it discoloured the water - while the red hose seems to not contaminate the water. (This black hose was installed locally to ease access to the water pump unit.) Keith. Palmerston North New Zealand. -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: Wednesday, April 03, 2002 5:19 AM To: 'glynn.wilson@sth.nhs.uk'; ; Wilson, Jim Subject: Re: RE: WATER PUMP VARIAN 2100C Wow. 6-8 months sounds like a very short pump life to me. Are they actually failing in that time? I have had the same problems here and have decided to change the water pumps on the Varian machines every year on a PM. Is there any other manufacturer out there utilizing a submersible pump? It just seems like a very bad idea to me. Scot Thiesson Allan Blair Cancer Centre. Regina Sask. Canada ################################################################################ Attention: This e-mail message and any attachments contain information that is confidential and may be subject to Legal and Medical privilege. If you are not the intended recipient, you must not peruse, use, pass on or copy this message or any attachments. If you have received this e-mail in error, please notify us by return e-mail and erase all copies of this message including any attachments. MidCentral District Health Board does not accept any liability in respect of any virus which is not detected. This e-mail message has been scanned and cleared by MailMarshal ################################################################################ 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 23:06:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sVTd-0002kF-00; Tue, 02 Apr 2002 23:06:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A31461112F2; Tue, 2 Apr 2002 22:03:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA27155 for linac-eng-list; Tue, 2 Apr 2002 14:45:05 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from UIHC-MXII.UIHC.UIOWA.EDU (uihc-mxii.uihc.uiowa.edu [129.255.210.177]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA27150 for ; Tue, 2 Apr 2002 14:45:02 -0600 (CST) Received: from uihc-bh.uihc.uiowa.edu (uihc-web.uihc.uiowa.edu [129.255.210.35]) by UIHC-MXII.UIHC.UIOWA.EDU (8.11.6/8.11.2) with ESMTP id g32KbI823884 for ; Tue, 2 Apr 2002 14:37:19 -0600 Received: by uihc-bh.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id <2FKMTMJL>; Tue, 2 Apr 2002 14:44:11 -0600 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24015F7751@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: re: suggestion Date: Thu, 28 Mar 2002 13:38:26 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: re: suggestion Date: Thu, 28 Mar 2002 13:38:26 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Clinac 4 Clinac-18R Clinac 21EX , PV, MLC Zimatron simulator all Varian 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 23:51:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sWBX-0002mS-00; Tue, 02 Apr 2002 23:51:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DB5B71112F3; Tue, 2 Apr 2002 22:48:36 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA29529 for linac-eng-list; Tue, 2 Apr 2002 15:18:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fw-bccancer.bc.tac.net (bccancer.tkg.bc.tac.net [208.181.69.245]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA29524 for ; Tue, 2 Apr 2002 15:18:48 -0600 (CST) Received: (qmail 16980 invoked from network); 2 Apr 2002 21:18:11 -0000 Received: from unknown (HELO server17.bccancer.bc.ca) (205.233.164.254) by m160-129.bc-cancer.pxy with SMTP; 2 Apr 2002 21:18:11 -0000 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 13:14:59 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA007A4F5CA@SERVER20> From: "Patrick Wong (VICC)" To: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 13:18:39 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" To: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 13:18:39 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have a water pump replacement after three months of installation on one of the 21EX machine and have no problem ever since. We don't have any water pump problem with other 21EX machines after 1.5 years of operation. All machines upgrade with Nalco 2838 & CW-4751 liquid chemical instead of DI from Cullingan that come with the linac. The pump parts number:- P/N#837890-04 208VAC 60Hz was replace with #85691104 230VAC 60Hz. Pump cost $747.00 us. Usually the pump should last rest of machine life, I hope??. Wait and see, who's know??? Patrick Wong Vancouver Island Cancer Centre Victoria B.C. Canada > -----Original Message----- > From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] > Sent: Tuesday, April 02, 2002 5:43 AM > To: linac-eng@plato.aristotle.net > Subject: WATER PUMP VARIAN 2100C > > > Hi Group > > We had a new 2100CD installed # 1766 last Aug > The water pump failed on the set just before Christmas. > Varian replaced it under warranty. I stripped the old pump > and motor and > found that the motor had been filled with black graphite > grease instead of > water as a lubricant. > The grease had spilled out into the water system and affected > the rubber > components. Particles had then seized the pump. > The new pump fitted by Varian lasted 6 weeks and again seized. > Investigations showed that grease had attacked the rubber hoses. > System was flushed using mild detergent and then neutralized. > The hoses were > then replaced. > Low flow had damaged the output stages of the RF DRIVER and > it had to be > replaced. > Time will tell what other damage has been done! > Thankfully all done under warranty. > Just posting this as a warning in case there are more pumps > out there with > grease filled motors. > > Glynn Wilson > Weston Park Hospital > Sheffield > UK > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 02:09:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sYLV-0002rV-00; Wed, 03 Apr 2002 02:09:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ADDBA1112F2; Wed, 3 Apr 2002 01:07:02 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA23387 for linac-eng-list; Tue, 2 Apr 2002 17:47:46 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA23383 for ; Tue, 2 Apr 2002 17:47:45 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KG3JUAVGVU000XPR@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Tue, 02 Apr 2002 18:48:40 -0500 (EST) Date: Tue, 02 Apr 2002 18:47:08 -0500 From: "Peter E. Vitali" Subject: Re: Digestion of "suggestion". To: "Rozenblat, Alex" Cc: "'linac'" Message-id: <3CAA422C.ADA73E29@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Apr 2002 18:47:08 -0500 From: "Peter E. Vitali" Subject: Re: Digestion of "suggestion". To: "Rozenblat, Alex" Cc: "'linac'" Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Alex: BBC is Brown Boveri & Company, LTD Baden, Switzerland. Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 02:16:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sYRY-0002rj-00; Wed, 03 Apr 2002 02:16:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 385A91112F2; Wed, 3 Apr 2002 01:13:17 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA23825 for linac-eng-list; Tue, 2 Apr 2002 17:58:00 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA23821 for ; Tue, 2 Apr 2002 17:57:59 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Apr 2002 09:27:08 -0800 Message-ID: From: "Wilson, Jim" To: linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 09:26:14 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Tue, 2 Apr 2002 09:26:14 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Yes they actually are failing. -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: Tuesday, April 02, 2002 9:19 AM To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, Jim Subject: Re: RE: WATER PUMP VARIAN 2100C Wow. 6-8 months sounds like a very short pump life to me. Are they actually failing in that time? I have had the same problems here and have decided to change the water pumps on the Varian machines every year on a PM. Is there any other manufacturer out there utilizing a submersible pump? It just seems like a very bad idea to me. Scot Thiesson Allan Blair Cancer Centre. Regina Sask. Canada 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: >We have had the same problem for the last 3 years. We have had to replace >the pump every 6-8 months. The Franklin motor somehow comes apart and fills >the tank with black goo. We have had no other problems associated with this >failure. We have not changed the type of water we are using or have done >anything else different that we can think of to cause this. > >-----Original Message----- >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] >Sent: Tuesday, April 02, 2002 5:43 AM >To: linac-eng@plato.aristotle.net >Subject: WATER PUMP VARIAN 2100C > > >Hi Group > >We had a new 2100CD installed # 1766 last Aug >The water pump failed on the set just before Christmas. >Varian replaced it under warranty. I stripped the old pump and motor and >found that the motor had been filled with black graphite grease instead of >water as a lubricant. >The grease had spilled out into the water system and affected the rubber >components. Particles had then seized the pump. >The new pump fitted by Varian lasted 6 weeks and again seized. >Investigations showed that grease had attacked the rubber hoses. >System was flushed using mild detergent and then neutralized. The hoses were >then replaced. >Low flow had damaged the output stages of the RF DRIVER and it had to be >replaced. >Time will tell what other damage has been done! >Thankfully all done under warranty. >Just posting this as a warning in case there are more pumps out there with >grease filled motors. > >Glynn Wilson >Weston Park Hospital >Sheffield >UK > >*************************************************************************** * >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 09:14:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16seyQ-0004A0-00; Wed, 03 Apr 2002 09:14:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0412C1112F2; Wed, 3 Apr 2002 08:11:39 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id AAA10504 for linac-eng-list; Wed, 3 Apr 2002 00:55:50 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id AAA10500 for ; Wed, 3 Apr 2002 00:55:49 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id C04161112F5; Wed, 3 Apr 2002 07:52:58 +0100 (MET) Received: from (kriek.radcl.ruu.nl) [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16segJ-0003wy-00; Wed, 03 Apr 2002 08:55:43 +0200 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 3 Apr 02 08:54:51 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 3 Apr 02 08:54:46 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "Rozenblat, Alex" , "Peter E. Vitali" Date: Wed, 3 Apr 2002 08:54:37 +0200 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Digestion of "suggestion". Cc: "'linac'" In-reply-to: <3CAA422C.ADA73E29@yale.edu> X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "Rozenblat, Alex" , "Peter E. Vitali" Date: Wed, 3 Apr 2002 08:54:37 +0200 Content-type: text/plain; charset=US-ASCII Subject: Re: Digestion of "suggestion". Cc: "'linac'" In-reply-to: <3CAA422C.ADA73E29@yale.edu> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Brown Boveri & Company (BBC) transmogrified into ABB (Asea Brown Boveri) - yes the same people that make the railway signalling gear, so the machines are nearly identical. They did not produce many linacs (stopping production somewhere around 1990). Varian bought up the ABB business(designs and support), and are the official source of spares. Any machine that has been clinical for ten years is officially out of support (or so I believe). There's a bit of History for you...... Best Regards Stuart Date sent: Tue, 02 Apr 2002 18:47:08 -0500 From: "Peter E. Vitali" Subject: Re: Digestion of "suggestion". To: "Rozenblat, Alex" Copies to: "'linac'" > Alex: > > BBC is Brown Boveri & Company, LTD Baden, Switzerland. > > Pete Vitali > -------------- Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 09:43:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sfQK-0004Ku-00; Wed, 03 Apr 2002 09:43:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A5DF41112F2; Wed, 3 Apr 2002 08:40:29 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id BAA11449 for linac-eng-list; Wed, 3 Apr 2002 01:26:46 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA11445 for ; Wed, 3 Apr 2002 01:26:44 -0600 (CST) From: glynn.wilson@sth.nhs.uk Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16sf9q-0003OP-00; Wed, 03 Apr 2002 08:26:14 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A2000041249 for linac-eng@plato.aristotle.net; Wed, 3 Apr 2002 08:26:14 +0100 Received: from bilbo.wph.trent.nhs.uk (212.196.142.129) by relay.nhs.uk (Syntegra-3 6.0.037) id 3C8D4A87001D0608; Wed, 3 Apr 2002 08:26:14 +0100 Received: by bilbo.wph.trent.nhs.uk with Internet Mail Service (5.5.2232.9) id ; Wed, 3 Apr 2002 08:22:41 +0100 Message-ID: <697DE9C94DFED211A6DB00A0C9067D874093C3@bilbo.wph.trent.nhs.uk> To: sthiesson@scf.sk.ca, linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 08:22:38 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: glynn.wilson@sth.nhs.uk To: sthiesson@scf.sk.ca, linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 08:22:38 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Ours was a one off failure where somehow the pump motor had been filled with grease instead of water as the lube. We have pumps that have been in for over 10 years and no problem. There could be more rogue motors out there though and DI filter or not it aint gonna stop the grease getting into the water system. All our filters were stripped and looked more like the inside of a Chevvy gearbox than a linac. Glynn Sheffield UK -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: 02 April 2002 18:19 To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, Jim Subject: Re: RE: WATER PUMP VARIAN 2100C Wow. 6-8 months sounds like a very short pump life to me. Are they actually failing in that time? I have had the same problems here and have decided to change the water pumps on the Varian machines every year on a PM. Is there any other manufacturer out there utilizing a submersible pump? It just seems like a very bad idea to me. Scot Thiesson Allan Blair Cancer Centre. Regina Sask. Canada 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: >We have had the same problem for the last 3 years. We have had to replace >the pump every 6-8 months. The Franklin motor somehow comes apart and fills >the tank with black goo. We have had no other problems associated with this >failure. We have not changed the type of water we are using or have done >anything else different that we can think of to cause this. > >-----Original Message----- >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] >Sent: Tuesday, April 02, 2002 5:43 AM >To: linac-eng@plato.aristotle.net >Subject: WATER PUMP VARIAN 2100C > > >Hi Group > >We had a new 2100CD installed # 1766 last Aug >The water pump failed on the set just before Christmas. >Varian replaced it under warranty. I stripped the old pump and motor and >found that the motor had been filled with black graphite grease instead of >water as a lubricant. >The grease had spilled out into the water system and affected the rubber >components. Particles had then seized the pump. >The new pump fitted by Varian lasted 6 weeks and again seized. >Investigations showed that grease had attacked the rubber hoses. >System was flushed using mild detergent and then neutralized. The hoses were >then replaced. >Low flow had damaged the output stages of the RF DRIVER and it had to be >replaced. >Time will tell what other damage has been done! >Thankfully all done under warranty. >Just posting this as a warning in case there are more pumps out there with >grease filled motors. > >Glynn Wilson >Weston Park Hospital >Sheffield >UK > >*************************************************************************** * >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 12:20:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sLOw-0007r6-00; Tue, 02 Apr 2002 12:20:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 46DE81112FA; Tue, 2 Apr 2002 11:17:42 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA25973 for linac-eng-list; Tue, 2 Apr 2002 04:02:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA25969 for ; Tue, 2 Apr 2002 04:02:46 -0600 (CST) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 16sL7H-0005g0-00; Tue, 02 Apr 2002 11:02:15 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C81284400246B5E for Linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 11:02:15 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C92086F00271091 for Linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 11:02:15 +0100 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Tue, 02 Apr 2002 11:02:06 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Tue, 02 Apr 2002 11:01:55 +0100 From: "Steve Watkins" To: Cc: Subject: Re: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25970 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Apr 2002 11:01:55 +0100 From: "Steve Watkins" To: Cc: Subject: Re: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25970 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Cookridge Hospital UK 6 Elektas(4mlc) 2 Varian 600c 1 Nucletron sim 1 Philips sim 1, filed,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 02 12:20:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sLOw-0007r6-00; Tue, 02 Apr 2002 12:20:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 46DE81112FA; Tue, 2 Apr 2002 11:17:42 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA25973 for linac-eng-list; Tue, 2 Apr 2002 04:02:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA25969 for ; Tue, 2 Apr 2002 04:02:46 -0600 (CST) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 16sL7H-0005g0-00; Tue, 02 Apr 2002 11:02:15 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C81284400246B5E for Linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 11:02:15 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-1 6.0.037) id 3C92086F00271091 for Linac-eng@plato.aristotle.net; Tue, 2 Apr 2002 11:02:15 +0100 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Tue, 02 Apr 2002 11:02:06 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Tue, 02 Apr 2002 11:01:55 +0100 From: "Steve Watkins" To: Cc: Subject: Re: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25970 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Apr 2002 11:01:55 +0100 From: "Steve Watkins" To: Cc: Subject: Re: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25970 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Cookridge Hospital UK 6 Elektas(4mlc) 2 Varian 600c 1 Nucletron sim 1 Philips sim 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 15:41:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sl1D-000058-00; Wed, 03 Apr 2002 15:41:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7F68B1112F7; Wed, 3 Apr 2002 15:44:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA20069 for linac-eng-list; Wed, 3 Apr 2002 07:17:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA20065 for ; Wed, 3 Apr 2002 07:17:32 -0600 (CST) Received: by igate-int.hbocvan.com; id IAA03633; Wed, 3 Apr 2002 08:17:31 -0500 (EST) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma003616; Wed, 3 Apr 02 08:17:29 -0500 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Wed, 3 Apr 2002 08:14:13 -0500 Message-ID: From: "Eason, Guy" To: linac-eng@plato.aristotle.net Subject: 3M 952 Laser Camera Adjustments Date: Wed, 3 Apr 2002 08:14:13 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: linac-eng@plato.aristotle.net Subject: 3M 952 Laser Camera Adjustments Date: Wed, 3 Apr 2002 08:14:13 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Does anybody have any info for the 952 laser camera. We lost power and when we came back up tried to print from camera but kept getting E53 errors. We don't have an MMU so memory is not partitioned and have no errors on startup. I have reset the video parameters and now can print but our image is shifted left and magnified and is cutting off the right hand side of image. Any one have the information on the IMS NOVRAM for the GE Highspeed Advantage. I'm using the information for the Hilite Advantage but we have the Highspeed Advantage. Any suggestions? Guy Eason Radiation Oncology Phoebe Putney Memorial Hospital (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 15:42:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sl2E-00005V-00; Wed, 03 Apr 2002 15:42:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8DF7B1112F2; Wed, 3 Apr 2002 15:45:25 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA20236 for linac-eng-list; Wed, 3 Apr 2002 07:24:22 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA20232 for ; Wed, 3 Apr 2002 07:24:21 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KG4CDOYV04000XOG@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 03 Apr 2002 08:25:15 -0500 (EST) Date: Wed, 03 Apr 2002 08:20:33 -0500 From: "Peter E. Vitali" Subject: Re: WATER PUMP VARIAN 2100C To: "Wilson, Jim" Cc: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Message-id: <3CAB018F.96E461F8@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 03 Apr 2002 08:20:33 -0500 From: "Peter E. Vitali" Subject: Re: WATER PUMP VARIAN 2100C To: "Wilson, Jim" Cc: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Jim and others. We have two 2100Cs which were installed in 1991 and 1993. I have yet to replace a water pump. I did buy a spare pump back in 1993. Using my previous experience with water pumps, we replaced the motors about every 2.5 years. So I was expecting to do a change on the first machine between 1993 and 1994. Never happened. Varian had changed the pump system from a Franklin Motor unit to Grundfos. On my other linac I continued changing the pump motor every 2.5 to 3 years. The seal on the Franklin motor goes and you get grease in the water before the pump stops running. It looks like Varian stopped using the Grundfos pump and has gone back to one produced here in the U.S.A. Later today I am going to see if the pump is still made and if it is still available in the U.S.A. Below is the information that I could obtain from the pump and the box it came in. The Grundfos Pump is made in Denmark and is an all stainless steel pump. The Company that brought it into the U.S.A. was: The Osborne Company, Inc Manufacturers Representative 4771 Arroyo Vista, Unit E Livermore, California 94550 Phone: 510 449-1700 Information from the pump: GRUNDFOS PUMP NO: 9215 TYPE SP PC: 25S15-9 Q: 25 MODEL: NO INFO H: 100 FT n: 3450 RPM P: 1.5 HP GRUNDFOS PUMP MOTOR (MADE IN DENMARK) MS-402 MODEL 79302005 PH 3 60 HZ 230VAC S.F.A. 6.3 KVAcode K MAX 40 C INS CL. B 3450 RPM PROD D.92/06 Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 15:50:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16slA1-00008X-00; Wed, 03 Apr 2002 15:50:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 92C841112F2; Wed, 3 Apr 2002 15:53:28 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA20498 for linac-eng-list; Wed, 3 Apr 2002 07:33:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA20493 for ; Wed, 3 Apr 2002 07:33:38 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KG4CP80O380012NW@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 03 Apr 2002 08:34:32 -0500 (EST) Date: Wed, 03 Apr 2002 08:29:54 -0500 From: "Peter E. Vitali" Subject: Grundfos Pump Corporation To: "Linac-Engineers, Listserver" Message-id: <3CAB03BD.4C7168EB@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 03 Apr 2002 08:29:54 -0500 From: "Peter E. Vitali" Subject: Grundfos Pump Corporation To: "Linac-Engineers, Listserver" Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Morning All: The Grundfos Pump Corporation has a web site. Grundfos.com They have distributors all over the USA and are also World Wide. Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 16:41:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16slxC-0000Ve-00; Wed, 03 Apr 2002 16:41:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1D7F61112F7; Wed, 3 Apr 2002 16:44:10 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA23381 for linac-eng-list; Wed, 3 Apr 2002 08:19:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA23377 for ; Wed, 3 Apr 2002 08:19:25 -0600 (CST) Received: by igate-int.hbocvan.com; id JAA20923; Wed, 3 Apr 2002 09:19:23 -0500 (EST) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma020740; Wed, 3 Apr 02 09:19:18 -0500 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Wed, 3 Apr 2002 09:15:56 -0500 Message-ID: From: "Eason, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: Wanting to buy Varian 600C (229) 312-2280 Date: Wed, 3 Apr 2002 09:15:56 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: Wanting to buy Varian 600C (229) 312-2280 Date: Wed, 3 Apr 2002 09:15:56 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Okay Resellers, I'm in the market for a 600C with ETR couch or better. Please call me. Guy Eason Radiation Oncology Phoebe Putney Memorial Hospital (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 17:59:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16snAO-0000ys-00; Wed, 03 Apr 2002 17:59:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 264061112F2; Wed, 3 Apr 2002 18:01:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA27619 for linac-eng-list; Wed, 3 Apr 2002 09:27:50 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m10.mx.aol.com (imo-m10.mx.aol.com [64.12.136.165]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA27608 for ; Wed, 3 Apr 2002 09:27:48 -0600 (CST) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-m10.mx.aol.com (mail_out_v32.5.) id y.f7.190540c9 (17080) for ; Wed, 3 Apr 2002 10:27:08 -0500 (EST) Message-ID: Date: Wed, 3 Apr 2002 10:27:08 EST Subject: Varian CL-4R To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_f7.190540c9.29dc794c_boundary" X-Mailer: AOL 7.0 for Windows US sub 121 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Wed, 3 Apr 2002 10:27:08 EST Subject: Varian CL-4R To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_f7.190540c9.29dc794c_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_f7.190540c9.29dc794c_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello list, Now don't jump down my throat, I'm an ex-Siemens guy and I don't know what the market is for old Varian machines. We will be removing a CL-4R, s/n 11R (?) this summer. Any (non-profane) suggestions? Does anyone actually purchase these things possibly for resale to say, Afghanistan or somewhere like that? We will also be looking for someone to move (not my decision) a Kermath simulator at the same time. Dave Steimel MIRO Farmington Hills, MI, USA 248-553-0606 --part1_f7.190540c9.29dc794c_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello list,
    Now don't jump down my throat, I'm an ex-Siemens guy and I don't know what the market is for old Varian machines. We will be removing a CL-4R, s/n 11R (?) this summer. Any (non-profane) suggestions?  Does anyone actually purchase these things possibly for resale to say, Afghanistan or somewhere like that?
    We will also be looking for someone to move (not my decision) a Kermath simulator at the same time.

    Dave Steimel
    MIRO
    Farmington Hills, MI, USA
    248-553-0606
     --part1_f7.190540c9.29dc794c_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 18:02:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16snDD-0000zM-00; Wed, 03 Apr 2002 18:02:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 356461112F2; Wed, 3 Apr 2002 18:04:48 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA28148 for linac-eng-list; Wed, 3 Apr 2002 09:38:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA28144 for ; Wed, 3 Apr 2002 09:38:22 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Wed, 03 Apr 2002 09:41:09 -0600 Received: by corpexcon01.corp.medcity.net with Internet Mail Service (5.5.2653.19) id <2DM4NGRF>; Wed, 3 Apr 2002 09:39:44 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8663A@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'glynn.wilson@sth.nhs.uk'" Cc: "Linac list (E-mail)" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 09:38:23 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'glynn.wilson@sth.nhs.uk'" Cc: "Linac list (E-mail)" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 09:38:23 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Glynn, The pump motor is supposed to sealed and the lubrication for it will be grease. The actual pump section is "lubed" with water. I have never seen a pump "motor" that uses water as a lubricant! It sounds like you lost a seal at the shaft end of the motor and grease migrated out into the pump section. Typically the pumps should last several years before replacement. I replaced the pump on my 1800 after 10 years. It was still running but would not come up right off after a water change. It was a Grundfos. Mike T. > -----Original Message----- > From: glynn.wilson@sth.nhs.uk [SMTP:glynn.wilson@sth.nhs.uk] > Sent: Wednesday, April 03, 2002 1:23 AM > To: sthiesson@scf.sk.ca; linac-eng@plato.aristotle.net > Subject: RE: RE: WATER PUMP VARIAN 2100C > > Ours was a one off failure where somehow the pump motor had been filled > with > grease instead of water as the lube. We have pumps that have been in for > over 10 years and no problem. > There could be more rogue motors out there though and DI filter or not it > aint gonna stop the grease getting into the water system. All our filters > were stripped and looked more like the inside of a Chevvy gearbox than a > linac. > Glynn > Sheffield > UK > > -----Original Message----- > From: scot thiesson [mailto:sthiesson@scf.sk.ca] > Sent: 02 April 2002 18:19 > To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, > Jim > Subject: Re: RE: WATER PUMP VARIAN 2100C > > > Wow. 6-8 months sounds like a very short pump life to me. Are they > actually > failing in that time? > I have had the same problems here and have decided to change the water > pumps > on the Varian machines every year on a PM. Is there any > other manufacturer out there utilizing a submersible pump? It just seems > like a very bad idea to me. > > Scot Thiesson > Allan Blair Cancer Centre. > Regina Sask. Canada > > > > 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: > > >We have had the same problem for the last 3 years. We have had to replace > >the pump every 6-8 months. The Franklin motor somehow comes apart and > fills > >the tank with black goo. We have had no other problems associated with > this > >failure. We have not changed the type of water we are using or have done > >anything else different that we can think of to cause this. > > > >-----Original Message----- > >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] > >Sent: Tuesday, April 02, 2002 5:43 AM > >To: linac-eng@plato.aristotle.net > >Subject: WATER PUMP VARIAN 2100C > > > > > >Hi Group > > > >We had a new 2100CD installed # 1766 last Aug > >The water pump failed on the set just before Christmas. > >Varian replaced it under warranty. I stripped the old pump and motor and > >found that the motor had been filled with black graphite grease instead > of > >water as a lubricant. > >The grease had spilled out into the water system and affected the rubber > >components. Particles had then seized the pump. > >The new pump fitted by Varian lasted 6 weeks and again seized. > >Investigations showed that grease had attacked the rubber hoses. > >System was flushed using mild detergent and then neutralized. The hoses > were > >then replaced. > >Low flow had damaged the output stages of the RF DRIVER and it had to be > >replaced. > >Time will tell what other damage has been done! > >Thankfully all done under warranty. > >Just posting this as a warning in case there are more pumps out there > with > >grease filled motors. > > > >Glynn Wilson > >Weston Park Hospital > >Sheffield > >UK > > > >************************************************************************* > ** > * > >This message is intended for the sole use of the individual and entity to > >whom it is addressed, and may contain information that is privileged, > >confidential and exempt from disclosure under applicable law. If you are > >not the intended addressee, nor authorized to receive for the intended > >addressee, you are hereby notified that you may not use, copy, disclose > or > >distribute to anyone the message or any information contained in the > >message. If you have received this message in error, please immediately > >advise the sender by reply email and delete the message. Thank you very > >much. > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 18:05:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16snFz-0000zo-00; Wed, 03 Apr 2002 18:05:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6375D1112F2; Wed, 3 Apr 2002 18:07:45 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA28269 for linac-eng-list; Wed, 3 Apr 2002 09:40:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA28265 for ; Wed, 3 Apr 2002 09:40:54 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g33FeIh03106; Wed, 3 Apr 2002 09:40:18 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g33FeI803102; Wed, 3 Apr 2002 09:40:18 -0600 (CST) Received: through eSafe SMTP Relay 1016464309; Wed Apr 03 09:40:18 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 3 Apr 2002 09:40:18 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E70@wmhmail.phci.org> From: "Williams, Rod" To: "'Peter E. Vitali'" , "Linac-Engineers, Listserver" Subject: RE: Grundfos Pump Corporation Date: Wed, 3 Apr 2002 09:40:11 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DB25.D70FBBD0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Peter E. Vitali'" , "Linac-Engineers, Listserver" Subject: RE: Grundfos Pump Corporation Date: Wed, 3 Apr 2002 09:40:11 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DB25.D70FBBD0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DB25.D70FBBD0 Content-Type: text/plain Hi Peter is it possible to get the length of the pump from the top to the bottom, this would allow me to get the latest part number for the pump with motor. I will post the number for all. The numbers that you sent do not seem to come up in the spec sheets. Thanks Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Peter E. Vitali [SMTP:peter.vitali@yale.edu] > Sent: Wednesday, April 03, 2002 7:30 AM > To: Linac-Engineers, Listserver > Subject: Grundfos Pump Corporation > > Morning All: > > The Grundfos Pump Corporation has a web site. Grundfos.com > > They have distributors all over the USA and are also World Wide. > > Pete Vitali ------_=_NextPart_001_01C1DB25.D70FBBD0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Grundfos Pump Corporation

    Hi Peter is it = possible to get the length of the pump from the top to the bottom, this = would allow me to get the latest part number for the pump with motor. I = will post the number for all. The numbers that you sent do not seem to = come up in the spec sheets.

    Thanks

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Peter E. Vitali = [SMTP:peter.vitali@yale.edu]
      Sent:   Wednesday, April 03, 2002 7:30 AM
      To:     Linac-Engineers, Listserver
      Subject:       = Grundfos Pump Corporation

      Morning All:

      The Grundfos Pump Corporation has a = web site.   Grundfos.com

      They have distributors all over the = USA and are also World Wide.

      Pete Vitali

    ------_=_NextPart_001_01C1DB25.D70FBBD0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 19:16:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16soN1-00017b-00; Wed, 03 Apr 2002 19:16:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DBD571112F2; Wed, 3 Apr 2002 19:19:04 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA02747 for linac-eng-list; Wed, 3 Apr 2002 10:44:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA02743 for ; Wed, 3 Apr 2002 10:44:22 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KG4JCIXZVA00109K@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 03 Apr 2002 11:45:09 -0500 (EST) Date: Wed, 03 Apr 2002 11:41:26 -0500 From: "Peter E. Vitali" Subject: Re: Grundfos Pump Corporation To: "Williams, Rod" Cc: "Linac-Engineers, Listserver" Message-id: <3CAB3068.8018862C@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <7A3389A8D723D511B2260008C7B2BF390D5E70@wmhmail.phci.org> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 03 Apr 2002 11:41:26 -0500 From: "Peter E. Vitali" Subject: Re: Grundfos Pump Corporation To: "Williams, Rod" Cc: "Linac-Engineers, Listserver" Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Rod: The pump is 6 5cm (25.5") long. Measured from the bottom to the nuts on top. Subtract about 1 cm for the thickness of the nut. I forgot that there was a Varian Part number on the Box: 856911-01 rev F Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 19:49:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sot4-00018x-00; Wed, 03 Apr 2002 19:49:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A159A1112F2; Wed, 3 Apr 2002 19:52:07 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA06079 for linac-eng-list; Wed, 3 Apr 2002 11:23:12 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA06075 for ; Wed, 3 Apr 2002 11:23:11 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Wed, 3 Apr 2002 09:22:40 -0800 Message-ID: From: "Loeks, Michael" To: "Linac list (E-mail)" Subject: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 09:21:45 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Loeks, Michael" To: "Linac list (E-mail)" Subject: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 09:21:45 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Gentlemen, I have had several pump motors die a very premature death as well so I have a few comments about them. 1. All our pump motors that failed were manufactured by Franklin Electric. This may be a clue. 2. Grundfos does manufacture motors as well as pumps. 3. The pump and the pump MOTOR are both lubricated with water according to Franklin Electric's and Grundfos' web sites. 4. My experience has been that the black material being ejected from the pump is at least partially composed of minute metallic bits as it can be picked up with a magnet. 5. Our machines that had the pump motor problem were using the small DI canisters. Has anyone who experienced a premature pump motor failure had a problem with a Grundfos motor or have they all been manufactured by Franklin Electric? Thanks, Michael Loeks Providence Portland Medical Center Portland, Oregon **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 19:51:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sovD-00019B-00; Wed, 03 Apr 2002 19:51:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0E6411112F2; Wed, 3 Apr 2002 19:54:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA06541 for linac-eng-list; Wed, 3 Apr 2002 11:29:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA06535 for ; Wed, 3 Apr 2002 11:29:47 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA14576; Wed, 3 Apr 2002 11:35:47 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: "Wilson, Jim" , "Peter E. Vitali" Cc: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Date: Wed, 03 Apr 2002 11:29:41 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <3CAB018F.96E461F8@yale.edu> Message-Id: Subject: Re: WATER PUMP VARIAN 2100C Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "Wilson, Jim" , "Peter E. Vitali" Cc: "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Date: Wed, 03 Apr 2002 11:29:41 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <3CAB018F.96E461F8@yale.edu> Subject: Re: WATER PUMP VARIAN 2100C Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 2.5 to three years sounds about right for motors. I say sounds about because we only have the one Varian C3 linac installed in 1996. One pump motor seal failed after four years and I never want to see that again! I must note that there was no warning before this happened. One morning we came into the bunker and there was black water greeting us! The motor was still humming along. I had been planning on keeping the cycle of changing (just the motor portion) about every year but now that I review the feedback I see the interval might be pushed to a couple years? We get these motors locally and they cost about $850 CDN to stock. With what frequency are other centres swapping these units on PM? Scot Thiesson Allan Blair Cancer Centre Regina Sask. Canada 4/3/2002 7:20:33 AM, "Peter E. Vitali" wrote: >Jim and others. > >We have two 2100Cs which were installed in 1991 and 1993. I have yet to replace a water >pump. I did buy a spare pump back in 1993. Using my previous experience with water >pumps, we replaced the motors about every 2.5 years. So I was expecting to do a change on >the first machine between 1993 and 1994. Never happened. Varian had changed the pump >system from a Franklin Motor unit to Grundfos. On my other linac I continued changing >the pump motor every 2.5 to 3 years. The seal on the Franklin motor goes and you get >grease in the water before the pump stops running. It looks like Varian stopped using >the Grundfos pump and has gone back to one produced here in the U.S.A. > >Later today I am going to see if the pump is still made and if it is still available in >the U.S.A. > >Below is the information that I could obtain from the pump and the box it came in. > >The Grundfos Pump is made in Denmark and is an all stainless steel pump. > >The Company that brought it into the U.S.A. was: > >The Osborne Company, Inc Manufacturers Representative >4771 Arroyo Vista, Unit E >Livermore, California 94550 >Phone: 510 449-1700 > >Information from the pump: > >GRUNDFOS PUMP >NO: 9215 >TYPE SP >PC: 25S15-9 >Q: 25 >MODEL: NO INFO >H: 100 FT >n: 3450 RPM >P: 1.5 HP > >GRUNDFOS PUMP MOTOR (MADE IN DENMARK) >MS-402 >MODEL 79302005 >PH 3 >60 HZ >230VAC >S.F.A. 6.3 KVAcode K >MAX 40 C >INS CL. B >3450 RPM >PROD D.92/06 > > >Peter E. Vitali, CBET >Therapeutic Radiological Engineer >Yale New Haven Hospital >20 York Street, HRT 22 >New Haven, CT. 06504 >Phone: (203) 688-2948 >FAX: (203) 688-3663 >E-mail: peter.vitali@yale.edu > > >As usual, everything I say may be plausibly denied at my employer's convenience... > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 20:52:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16spsJ-0001Bn-00; Wed, 03 Apr 2002 20:52:51 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 924F61112F2; Wed, 3 Apr 2002 20:55:22 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA22024 for linac-eng-list; Wed, 3 Apr 2002 12:24:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA21972 for ; Wed, 3 Apr 2002 12:24:30 -0600 (CST) From: Bob.Tonks@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g33INxD08650 for ; Wed, 3 Apr 2002 13:23:59 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B90.0063EF8E ; Wed, 3 Apr 2002 13:11:33 -0500 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256B90.0063EF7B.00@mail.lrcc.on.ca> Date: Wed, 3 Apr 2002 13:11:32 -0500 Subject: Re: WATER PUMP VARIAN 2100C Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Bob.Tonks@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Wed, 3 Apr 2002 13:11:32 -0500 Subject: Re: WATER PUMP VARIAN 2100C Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We tend to have few problems with our water pumps but do use Grundfos pumps when we replace one. I found that two of our machines came in with the supply voltage to the pumps way to high and so it was lowered. The pumps would overheat which would be a cause for seal failure etc. I think its better to run the pump with a lower voltage than the spec because the pump has way more capacity than the machine requires. Out of eight linac's we have only replaced one pump in the last four years. Bob Tonks London Regional Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 21:09:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sq8H-0001DB-00; Wed, 03 Apr 2002 21:09:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B20ED1112F2; Wed, 3 Apr 2002 21:11:57 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA29232 for linac-eng-list; Wed, 3 Apr 2002 12:43:50 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA29201 for ; Wed, 3 Apr 2002 12:43:46 -0600 (CST) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g33IhNt01514; Wed, 3 Apr 2002 11:43:23 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.249.25]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g33IhVJ28128; Wed, 3 Apr 2002 11:43:31 -0700 (MST) Message-ID: <3CAB4E36.88B412DA@cancerboard.ab.ca> Date: Wed, 03 Apr 2002 11:47:18 -0700 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: scot thiesson Cc: "Wilson, Jim" , "Peter E. Vitali" , "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: Re: WATER PUMP VARIAN 2100C References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 03 Apr 2002 11:47:18 -0700 From: Len Johnson X-Accept-Language: en To: scot thiesson Cc: "Wilson, Jim" , "Peter E. Vitali" , "'glynn.wilson@sth.nhs.uk'" , linac-eng@plato.aristotle.net Subject: Re: WATER PUMP VARIAN 2100C Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello to Scot and to the list; Our H.E. Clinacs have had very few pump or motor failures; I would guess that failures have been after at least five years of service. Our motors and pumps are all Grundfos. We have never had the grease in the water symptom described. We have had overload trips of the motor starter, noise, or loss of water pressure. Our older Clinacs are 12 years old now...and there has been very little problems. We have been running de-ionizer cartridges and water conductivity monitors with once a year water changes and three year hose changes. The Grundfos pump motors are rated for 40 degrees C maximum. I don't have any data on the Franklins. No problem buying the Grundfos units here in our part of the world. Sounds like a Franklin motor problem. Regards, Len scot thiesson wrote: > 2.5 to three years sounds about right for motors. I say sounds about because we only have the one Varian C3 linac installed in 1996. > One pump motor seal failed after four years and I never want to see that again! I must note that there was no warning before this happened. > One morning we came into the bunker and there was black water greeting us! The motor was still humming along. > I had been planning on keeping the cycle of changing (just the motor portion) about every year but now that I review the feedback I see the interval might be pushed to a couple > years? > We get these motors locally and they cost about $850 CDN to stock. With what frequency are other centres swapping these units on PM? > > Scot Thiesson > Allan Blair Cancer Centre > Regina Sask. > Canada > > 4/3/2002 7:20:33 AM, "Peter E. Vitali" wrote: > > >Jim and others. > > > >We have two 2100Cs which were installed in 1991 and 1993. I have yet to replace a water > >pump. I did buy a spare pump back in 1993. Using my previous experience with water > >pumps, we replaced the motors about every 2.5 years. So I was expecting to do a change on > >the first machine between 1993 and 1994. Never happened. Varian had changed the pump > >system from a Franklin Motor unit to Grundfos. On my other linac I continued changing > >the pump motor every 2.5 to 3 years. The seal on the Franklin motor goes and you get > >grease in the water before the pump stops running. It looks like Varian stopped using > >the Grundfos pump and has gone back to one produced here in the U.S.A. > > > >Later today I am going to see if the pump is still made and if it is still available in > >the U.S.A. > > > >Below is the information that I could obtain from the pump and the box it came in. > > > >The Grundfos Pump is made in Denmark and is an all stainless steel pump. > > > >The Company that brought it into the U.S.A. was: > > > >The Osborne Company, Inc Manufacturers Representative > >4771 Arroyo Vista, Unit E > >Livermore, California 94550 > >Phone: 510 449-1700 > > > >Information from the pump: > > > >GRUNDFOS PUMP > >NO: 9215 > >TYPE SP > >PC: 25S15-9 > >Q: 25 > >MODEL: NO INFO > >H: 100 FT > >n: 3450 RPM > >P: 1.5 HP > > > >GRUNDFOS PUMP MOTOR (MADE IN DENMARK) > >MS-402 > >MODEL 79302005 > >PH 3 > >60 HZ > >230VAC > >S.F.A. 6.3 KVAcode K > >MAX 40 C > >INS CL. B > >3450 RPM > >PROD D.92/06 > > > > > >Peter E. Vitali, CBET > >Therapeutic Radiological Engineer > >Yale New Haven Hospital > >20 York Street, HRT 22 > >New Haven, CT. 06504 > >Phone: (203) 688-2948 > >FAX: (203) 688-3663 > >E-mail: peter.vitali@yale.edu > > > > > >As usual, everything I say may be plausibly denied at my employer's convenience... > > > > > > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 22:00:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sqw9-0001Gy-00; Wed, 03 Apr 2002 22:00:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B7F741112F2; Wed, 3 Apr 2002 22:03:23 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA13726 for linac-eng-list; Wed, 3 Apr 2002 13:30:37 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA13632 for ; Wed, 3 Apr 2002 13:30:30 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA19751; Wed, 3 Apr 2002 13:36:30 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: "Linac list (E-mail)" , "Loeks, Michael" Date: Wed, 03 Apr 2002 13:30:23 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: Subject: Re: RE: WATER PUMP VARIAN 2100C Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "Linac list (E-mail)" , "Loeks, Michael" Date: Wed, 03 Apr 2002 13:30:23 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: RE: WATER PUMP VARIAN 2100C Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I agree with everything except the lubrication comment. I think you meant to say cooled by water. The motor I took apart was sealed with ceramic and rubber seals and could not have been lubed with water. As an interesting note I discovered on the data sheet that came with the new motor (a Franklin) that a special sleeve is required to insure proper cooling...I quote now: For Franklin motors only: The minimum water velocity over 4" motors is .25 feet per second. A flow inducer or sleeve must be used if the water enters the well above the motor or if there is insufficient water flow past the motor. Grundfos 4" submersible motors do not require a minimum flow or flow sleeve. The above note is off of the Grundfos SP4" Installation and operating instruction manual. So I pose the question .. Are all Franklin motors doomed because of cooling concerns?? Scot. 4/3/2002 11:21:45 AM, "Loeks, Michael" wrote: >Gentlemen, > I have had several pump motors die a very premature death as well so I >have a few comments about them. >1. All our pump motors that failed were manufactured by Franklin Electric. >This may be a clue. >2. Grundfos does manufacture motors as well as pumps. >3. The pump and the pump MOTOR are both lubricated with water according to >Franklin Electric's and Grundfos' web sites. >4. My experience has been that the black material being ejected from the >pump is at least partially composed of minute metallic bits as it can be >picked up with a magnet. >5. Our machines that had the pump motor problem were using the small DI >canisters. >Has anyone who experienced a premature pump motor failure had a problem with >a Grundfos motor or have they all been manufactured by Franklin Electric? > >Thanks, >Michael Loeks >Providence Portland Medical Center >Portland, Oregon > > >**************************************************************************** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 23:02:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16srtL-0001Jm-00; Wed, 03 Apr 2002 23:02:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 90CA11112F2; Wed, 3 Apr 2002 23:04:40 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA20246 for linac-eng-list; Wed, 3 Apr 2002 14:19:37 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA20242 for ; Wed, 3 Apr 2002 14:19:36 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA21020; Wed, 3 Apr 2002 14:25:39 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: "Linac list (E-mail)" , "Loeks, Michael" , scot thiesson Date: Wed, 03 Apr 2002 14:19:32 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: <98HBSNJFE0E0B97264DARP93RQI3YRM.3cab63d4@RPC035> Subject: Re: RE: WATER PUMP VARIAN 2100C Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "Linac list (E-mail)" , "Loeks, Michael" , scot thiesson Date: Wed, 03 Apr 2002 14:19:32 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: RE: WATER PUMP VARIAN 2100C Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Correction to my water cooling comment.... Was it curiosity that killed the cat? Maybe so. I disassembled a water pump motor and discovered ? water. It was on closer inspection a very oily water. The bottom bearing is a ceramic on ceramic type that rides on a film of this light oil. I suspect the water is there mostly for heat transfer to the outside world. Of course the whole unit is sealed up tight as a drum so if this concoction ever escaped into the outside world it would be VERY nasty indeed. I still stand by my Franklin remarks. These motors seem to be border line at best for this application with a maximum operating temp of 30c (the Grundfos is 40c) Scot. 4/3/2002 1:30:23 PM, scot thiesson wrote: >I agree with everything except the lubrication comment. I think you meant to say cooled by water. >The motor I took apart was sealed with ceramic and rubber seals and could not have been lubed with water. >As an interesting note I discovered on the data sheet that came with the new motor (a Franklin) that a special sleeve is required to insure proper cooling...I quote now: > >For Franklin motors only: The minimum water velocity over 4" motors is .25 feet per second. >A flow inducer or sleeve must be used if the water enters the well above the motor or if there is insufficient water flow past the motor. >Grundfos 4" submersible motors do not require a minimum flow or flow sleeve. > >The above note is off of the Grundfos SP4" Installation and operating instruction manual. >So I pose the question .. >Are all Franklin motors doomed because of cooling concerns?? > >Scot. > > > >4/3/2002 11:21:45 AM, "Loeks, Michael" wrote: > >>Gentlemen, >> I have had several pump motors die a very premature death as well so I >>have a few comments about them. >>1. All our pump motors that failed were manufactured by Franklin Electric. >>This may be a clue. >>2. Grundfos does manufacture motors as well as pumps. >>3. The pump and the pump MOTOR are both lubricated with water according to >>Franklin Electric's and Grundfos' web sites. >>4. My experience has been that the black material being ejected from the >>pump is at least partially composed of minute metallic bits as it can be >>picked up with a magnet. >>5. Our machines that had the pump motor problem were using the small DI >>canisters. >>Has anyone who experienced a premature pump motor failure had a problem with >>a Grundfos motor or have they all been manufactured by Franklin Electric? >> >>Thanks, >>Michael Loeks >>Providence Portland Medical Center >>Portland, Oregon >> >> >>**************************************************************************** >>This message is intended for the sole use of the individual and entity to >>whom it is addressed, and may contain information that is privileged, >>confidential and exempt from disclosure under applicable law. If you are >>not the intended addressee, nor authorized to receive for the intended >>addressee, you are hereby notified that you may not use, copy, disclose or >>distribute to anyone the message or any information contained in the >>message. If you have received this message in error, please immediately >>advise the sender by reply email and delete the message. Thank you very >>much. >> > > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 23:17:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ss8G-0001KY-00; Wed, 03 Apr 2002 23:17:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 949961112F2; Wed, 3 Apr 2002 23:20:04 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA23651 for linac-eng-list; Wed, 3 Apr 2002 14:49:16 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA23644 for ; Wed, 3 Apr 2002 14:49:14 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Wed, 3 Apr 2002 12:03:43 -0800 Message-ID: From: "Loeks, Michael" To: "Linac list (E-mail)" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 12:02:47 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Loeks, Michael" To: "Linac list (E-mail)" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 12:02:47 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Scot, I stand by my statement that the motors are water lubricated because both Grundfos and Franklin Electric clearly state this on their web sites. There is a cutaway view available on the Franklin website which shows the water lubrication at http://www.fele.com/Prod_text/m1419.htm . The link to the Grundfos document is http://www.us.grundfos.com/web/download.nsf/14f6f0b549ed2aeb082564f9005a292c /a189936e23b87341882569fb00614c02/$FILE/L-MS-TL-005.pdf . Page 8 specifies water lubrication. None of the pump motors that failed on our machines had the cooling sleeve. You may be on the right track there. Grundfos specifies no cooling sleeve required below 85( F which translates to about 29( C. Since we are running at about 40( C we are probably running the motor above its temperature specifications. Wouldn't hurt anything to install one. Mike Loeks -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: Wednesday, April 03, 2002 11:30 AM To: Linac list (E-mail); Loeks, Michael Subject: Re: RE: WATER PUMP VARIAN 2100C I agree with everything except the lubrication comment. I think you meant to say cooled by water. The motor I took apart was sealed with ceramic and rubber seals and could not have been lubed with water. As an interesting note I discovered on the data sheet that came with the new motor (a Franklin) that a special sleeve is required to insure proper cooling...I quote now: For Franklin motors only: The minimum water velocity over 4" motors is .25 feet per second. A flow inducer or sleeve must be used if the water enters the well above the motor or if there is insufficient water flow past the motor. Grundfos 4" submersible motors do not require a minimum flow or flow sleeve. The above note is off of the Grundfos SP4" Installation and operating instruction manual. So I pose the question .. Are all Franklin motors doomed because of cooling concerns?? Scot. **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 03 23:17:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ss8K-0001Kb-00; Wed, 03 Apr 2002 23:17:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AC74D1112F5; Wed, 3 Apr 2002 23:20:04 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA24305 for linac-eng-list; Wed, 3 Apr 2002 14:52:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA24301 for ; Wed, 3 Apr 2002 14:52:47 -0600 (CST) Received: from 159.139.152.113 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Wed, 03 Apr 2002 14:55:34 -0600 Received: by corpexcon02.corp.medcity.net with Internet Mail Service (5.5.2653.19) id <2DMTNSZ8>; Wed, 3 Apr 2002 14:53:05 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8663B@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'Loeks, Michael'" Cc: "Linac list (E-mail)" Subject: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 14:52:47 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'Loeks, Michael'" Cc: "Linac list (E-mail)" Subject: RE: WATER PUMP VARIAN 2100C Date: Wed, 3 Apr 2002 14:52:47 -0600 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Forgive my ignorance but explain to me how the "motor" - the actual motor of this pump, supplied by 3 phase power, can be lubricated by water. I've looked at the Grundfos web site and it says nothing about the MOTOR being lubricated with H2O! The motor is driving the pump portion and that is all it is doing. I have had one of these pumps apart and see no evidence of water "lubricating the actual motor section of this pump! In the installation and operating manual for the Grundfos pump under the electrical section it states that current imbalance between phases could result in excessive vibration causing early motor failure! I suspect that any such excessive vibration could cause a seal to fail prematurely. It sounds like the black water syndrome is a Franklin pump exclusive. Mike T. > -----Original Message----- > From: Loeks, Michael [SMTP:MLoeks@providence.org] > Sent: Wednesday, April 03, 2002 11:22 AM > To: Linac list (E-mail) > Subject: RE: WATER PUMP VARIAN 2100C > > Gentlemen, > I have had several pump motors die a very premature death as well so I > have a few comments about them. > 1. All our pump motors that failed were manufactured by Franklin Electric. > This may be a clue. > 2. Grundfos does manufacture motors as well as pumps. > 3. The pump and the pump MOTOR are both lubricated with water according to > Franklin Electric's and Grundfos' web sites. > 4. My experience has been that the black material being ejected from the > pump is at least partially composed of minute metallic bits as it can be > picked up with a magnet. > 5. Our machines that had the pump motor problem were using the small DI > canisters. > Has anyone who experienced a premature pump motor failure had a problem > with > a Grundfos motor or have they all been manufactured by Franklin Electric? > > Thanks, > Michael Loeks > Providence Portland Medical Center > Portland, Oregon > > > ************************************************************************** > ** > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are > not the intended addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, copy, disclose or > distribute to anyone the message or any information contained in the > message. If you have received this message in error, please immediately > advise the sender by reply email and delete the message. Thank you very > much. > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 00:06:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16sstd-0001Mh-00; Thu, 04 Apr 2002 00:06:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 05AE11112F2; Thu, 4 Apr 2002 00:08:46 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA02162 for linac-eng-list; Wed, 3 Apr 2002 15:33:22 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA02158 for ; Wed, 3 Apr 2002 15:33:20 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA24745; Wed, 3 Apr 2002 15:39:23 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: "Linac list (E-mail)" , "Loeks, Michael" Date: Wed, 03 Apr 2002 15:33:17 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: <1EAUSHCXROICJEVU6Z943LHYSRXS.3cab751d@RPC035> Subject: Re: RE: RE: WATER PUMP VARIAN 2100C Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "Linac list (E-mail)" , "Loeks, Michael" Date: Wed, 03 Apr 2002 15:33:17 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: RE: RE: WATER PUMP VARIAN 2100C Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Quite correct. See previous post. At any rate, the ceramic on ceramic bottom bearing does ride on a cusion of (very oily) water. I would suspect that because the temperature specification of the Franklin motor is already being exceeded the cooling sleeve would have a limited effect. Which leaves me with a rather suspect Franklin motor in stock... Varian care to comment? Scot. 4/3/2002 2:02:47 PM, "Loeks, Michael" wrote: >Scot, > I stand by my statement that the motors are water lubricated because both >Grundfos and Franklin Electric clearly state this on their web sites. There >is a cutaway view available on the Franklin website which shows the water >lubrication at http://www.fele.com/Prod_text/m1419.htm . The link to the >Grundfos document is >http://www.us.grundfos.com/web/download.nsf/14f6f0b549ed2aeb082564f9005a292c >/a189936e23b87341882569fb00614c02/$FILE/L-MS-TL-005.pdf . Page 8 specifies >water lubrication. > >None of the pump motors that failed on our machines had the cooling sleeve. >You may be on the right track there. Grundfos specifies no cooling sleeve >required below 85( F which translates to about 29( C. Since we are running >at about 40( C we are probably running the motor above its temperature >specifications. Wouldn't hurt anything to install one. > >Mike Loeks > > > -----Original Message----- >From: scot thiesson [mailto:sthiesson@scf.sk.ca] >Sent: Wednesday, April 03, 2002 11:30 AM >To: Linac list (E-mail); Loeks, Michael >Subject: Re: RE: WATER PUMP VARIAN 2100C > >I agree with everything except the lubrication comment. I think you meant to >say cooled by water. >The motor I took apart was sealed with ceramic and rubber seals and could >not have been lubed with water. >As an interesting note I discovered on the data sheet that came with the new >motor (a Franklin) that a special sleeve is required to insure proper >cooling...I quote now: > >For Franklin motors only: The minimum water velocity over 4" motors is .25 >feet per second. >A flow inducer or sleeve must be used if the water enters the well above the >motor or if there is insufficient water flow past the motor. >Grundfos 4" submersible motors do not require a minimum flow or flow sleeve. > >The above note is off of the Grundfos SP4" Installation and operating >instruction manual. >So I pose the question .. >Are all Franklin motors doomed because of cooling concerns?? > >Scot. > > > > > >**************************************************************************** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 00:10:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16ssxW-0001N6-00; Thu, 04 Apr 2002 00:10:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D01531112F2; Thu, 4 Apr 2002 00:13:02 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA05096 for linac-eng-list; Wed, 3 Apr 2002 15:46:03 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA05075 for ; Wed, 3 Apr 2002 15:45:56 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA25282; Wed, 3 Apr 2002 15:51:58 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: "'Loeks, Michael'" , Tirabassi Michael Cc: "Linac list (E-mail)" Date: Wed, 03 Apr 2002 15:45:50 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <39A90AC123CB9D428821E2BC273E73CD01F8663B@ftwex03.ftw.medcity.net> Message-Id: Subject: Re: RE: WATER PUMP VARIAN 2100C Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "'Loeks, Michael'" , Tirabassi Michael Cc: "Linac list (E-mail)" Date: Wed, 03 Apr 2002 15:45:50 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <39A90AC123CB9D428821E2BC273E73CD01F8663B@ftwex03.ftw.medcity.net> Subject: Re: RE: WATER PUMP VARIAN 2100C Content-Type: text/plain; charset="windows-1252" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk It is rather hard to believe... which is why I opened one up to see. It is filled with a water and light oil mixture. The windings are totally encased in a stainless steel casing and are quite dry I'm sure. When our motor failed it spewed black crud through out the system. In retrospect, this was obviously bits of the bottom ceramic bearing mixed with the oily additive. As the bearing wears out it would progressively contaminate the inner water/oil mixture until the rubber end seal at the top of the motor breaks down from the inside. After that happens all hell breaks loose! This of course is just my opinion. Scot. 4/3/2002 2:52:47 PM, Tirabassi Michael wrote: >Forgive my ignorance but explain to me how the "motor" - the actual motor of >this pump, supplied by 3 phase power, can be lubricated by water. I've >looked at the Grundfos web site and it says nothing about the MOTOR being >lubricated with H2O! The motor is driving the pump portion and that is all >it is doing. I have had one of these pumps apart and see no evidence of >water "lubricating the actual motor section of this pump! > >In the installation and operating manual for the Grundfos pump under the >electrical section it states that current imbalance between phases could >result in excessive vibration causing early motor failure! I suspect that >any such excessive vibration could cause a seal to fail prematurely. > >It sounds like the black water syndrome is a Franklin pump exclusive. > >Mike T. > >> -----Original Message----- >> From: Loeks, Michael [SMTP:MLoeks@providence.org] >> Sent: Wednesday, April 03, 2002 11:22 AM >> To: Linac list (E-mail) >> Subject: RE: WATER PUMP VARIAN 2100C >> >> Gentlemen, >> I have had several pump motors die a very premature death as well so I >> have a few comments about them. >> 1. All our pump motors that failed were manufactured by Franklin Electric. >> This may be a clue. >> 2. Grundfos does manufacture motors as well as pumps. >> 3. The pump and the pump MOTOR are both lubricated with water according to >> Franklin Electric's and Grundfos' web sites. >> 4. My experience has been that the black material being ejected from the >> pump is at least partially composed of minute metallic bits as it can be >> picked up with a magnet. >> 5. Our machines that had the pump motor problem were using the small DI >> canisters. >> Has anyone who experienced a premature pump motor failure had a problem >> with >> a Grundfos motor or have they all been manufactured by Franklin Electric? >> >> Thanks, >> Michael Loeks >> Providence Portland Medical Center >> Portland, Oregon >> >> >> ************************************************************************** >> ** >> This message is intended for the sole use of the individual and entity to >> whom it is addressed, and may contain information that is privileged, >> confidential and exempt from disclosure under applicable law. If you are >> not the intended addressee, nor authorized to receive for the intended >> addressee, you are hereby notified that you may not use, copy, disclose or >> distribute to anyone the message or any information contained in the >> message. If you have received this message in error, please immediately >> advise the sender by reply email and delete the message. Thank you very >> much. >> > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 03:22:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16svxo-0001Vh-00; Thu, 04 Apr 2002 03:22:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6604C1112F4; Thu, 4 Apr 2002 03:25:32 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA10118 for linac-eng-list; Wed, 3 Apr 2002 18:59:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.adelaideradiotherapycentre.com.au ([203.47.239.113]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id SAA10113 for ; Wed, 3 Apr 2002 18:59:29 -0600 (CST) Received: from hs (HS1 [192.1.4.61]) by mail.adelaideradiotherapycentre.com.au with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id FH54PZA3; Thu, 4 Apr 2002 10:28:12 +0930 Message-ID: <007001c1db73$d70f2320$3d0401c0@adelaideradiotherapycentre.com.au> Reply-To: "Hrishikesha Shanbhag" From: "Hrishikesha Shanbhag" To: "'linac'" References: <19F7B261417BD211BB660060973789D20DE5F8C9@exch2.tmh.tmc.edu> Subject: Re: Suggestion Date: Thu, 4 Apr 2002 10:28:25 +0930 Organization: Adelaide Radiotherapy centre MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: "Hrishikesha Shanbhag" From: "Hrishikesha Shanbhag" To: "'linac'" Subject: Re: Suggestion Date: Thu, 4 Apr 2002 10:28:25 +0930 Organization: Adelaide Radiotherapy centre Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk 5 Siemens Mevatrons( 3 Digital + 2 Conventional) 2 Varian Ximatrons 1 Philips RT100 SXR Hrishikesha Shanbhag Adelaide Radiotherapy Centre Adelaide. South Australia 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 10:31:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t2eH-0003zW-00; Thu, 04 Apr 2002 10:31:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F2EA71112F2; Thu, 4 Apr 2002 10:33:47 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id CAA05473 for linac-eng-list; Thu, 4 Apr 2002 02:17:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA05469 for ; Thu, 4 Apr 2002 02:17:03 -0600 (CST) From: glynn.wilson@sth.nhs.uk Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16t2Q4-0003L3-00; Thu, 04 Apr 2002 09:16:32 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A200005DDD3 for linac-eng@plato.aristotle.net; Thu, 4 Apr 2002 09:16:32 +0100 Received: from bilbo.wph.trent.nhs.uk (212.196.142.129) by relay.nhs.uk (Syntegra-1 6.0.037) id 3CAB16F3000136F8; Thu, 4 Apr 2002 09:16:32 +0100 Received: by bilbo.wph.trent.nhs.uk with Internet Mail Service (5.5.2232.9) id ; Thu, 4 Apr 2002 09:12:58 +0100 Message-ID: <697DE9C94DFED211A6DB00A0C9067D874093CD@bilbo.wph.trent.nhs.uk> To: Michael.Tirabassi@HCAHealthcare.com Cc: linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 09:12:48 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: glynn.wilson@sth.nhs.uk To: Michael.Tirabassi@HCAHealthcare.com Cc: linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 09:12:48 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Mike The motor is sealed but it can be stripped down. It is definately lubed with water. I have stripped quite a few in my time. The pumps and motors are designed for wells and bore holes to provide potent water. As such water regulations insist that no grease is able to be released into the water table. If you remove the three screws at the top of the motor the plate will be easy to remove. Under that is a rubber seal held in place by a spring ring and rubber ring. It is then possible to remove the rotor. You will see that there is no grease to be seen only distilled water. Grundfos installation instructions say that the priming screw should be removed and the motor body filled with lube water prior to install. Glynn Sheffield UK -----Original Message----- From: Tirabassi Michael [mailto:Michael.Tirabassi@HCAhealthcare.com] Sent: 03 April 2002 16:38 To: 'glynn.wilson@sth.nhs.uk' Cc: Linac list (E-mail) Subject: RE: RE: WATER PUMP VARIAN 2100C Glynn, The pump motor is supposed to sealed and the lubrication for it will be grease. The actual pump section is "lubed" with water. I have never seen a pump "motor" that uses water as a lubricant! It sounds like you lost a seal at the shaft end of the motor and grease migrated out into the pump section. Typically the pumps should last several years before replacement. I replaced the pump on my 1800 after 10 years. It was still running but would not come up right off after a water change. It was a Grundfos. Mike T. > -----Original Message----- > From: glynn.wilson@sth.nhs.uk [SMTP:glynn.wilson@sth.nhs.uk] > Sent: Wednesday, April 03, 2002 1:23 AM > To: sthiesson@scf.sk.ca; linac-eng@plato.aristotle.net > Subject: RE: RE: WATER PUMP VARIAN 2100C > > Ours was a one off failure where somehow the pump motor had been filled > with > grease instead of water as the lube. We have pumps that have been in for > over 10 years and no problem. > There could be more rogue motors out there though and DI filter or not it > aint gonna stop the grease getting into the water system. All our filters > were stripped and looked more like the inside of a Chevvy gearbox than a > linac. > Glynn > Sheffield > UK > > -----Original Message----- > From: scot thiesson [mailto:sthiesson@scf.sk.ca] > Sent: 02 April 2002 18:19 > To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, > Jim > Subject: Re: RE: WATER PUMP VARIAN 2100C > > > Wow. 6-8 months sounds like a very short pump life to me. Are they > actually > failing in that time? > I have had the same problems here and have decided to change the water > pumps > on the Varian machines every year on a PM. Is there any > other manufacturer out there utilizing a submersible pump? It just seems > like a very bad idea to me. > > Scot Thiesson > Allan Blair Cancer Centre. > Regina Sask. Canada > > > > 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: > > >We have had the same problem for the last 3 years. We have had to replace > >the pump every 6-8 months. The Franklin motor somehow comes apart and > fills > >the tank with black goo. We have had no other problems associated with > this > >failure. We have not changed the type of water we are using or have done > >anything else different that we can think of to cause this. > > > >-----Original Message----- > >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] > >Sent: Tuesday, April 02, 2002 5:43 AM > >To: linac-eng@plato.aristotle.net > >Subject: WATER PUMP VARIAN 2100C > > > > > >Hi Group > > > >We had a new 2100CD installed # 1766 last Aug > >The water pump failed on the set just before Christmas. > >Varian replaced it under warranty. I stripped the old pump and motor and > >found that the motor had been filled with black graphite grease instead > of > >water as a lubricant. > >The grease had spilled out into the water system and affected the rubber > >components. Particles had then seized the pump. > >The new pump fitted by Varian lasted 6 weeks and again seized. > >Investigations showed that grease had attacked the rubber hoses. > >System was flushed using mild detergent and then neutralized. The hoses > were > >then replaced. > >Low flow had damaged the output stages of the RF DRIVER and it had to be > >replaced. > >Time will tell what other damage has been done! > >Thankfully all done under warranty. > >Just posting this as a warning in case there are more pumps out there > with > >grease filled motors. > > > >Glynn Wilson > >Weston Park Hospital > >Sheffield > >UK > > > >************************************************************************* > ** > * > >This message is intended for the sole use of the individual and entity to > >whom it is addressed, and may contain information that is privileged, > >confidential and exempt from disclosure under applicable law. If you are > >not the intended addressee, nor authorized to receive for the intended > >addressee, you are hereby notified that you may not use, copy, disclose > or > >distribute to anyone the message or any information contained in the > >message. If you have received this message in error, please immediately > >advise the sender by reply email and delete the message. Thank you very > >much. > > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 10:40:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t2nH-00044u-00; Thu, 04 Apr 2002 10:40:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C588F1112F2; Thu, 4 Apr 2002 10:43:05 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id CAA05669 for linac-eng-list; Thu, 4 Apr 2002 02:26:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA05665 for ; Thu, 4 Apr 2002 02:26:44 -0600 (CST) From: glynn.wilson@sth.nhs.uk Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 16t2Zv-0005s9-00; Thu, 04 Apr 2002 09:26:43 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C812844002726C2 for linac-eng@plato.aristotle.net; Thu, 4 Apr 2002 09:26:43 +0100 Received: from bilbo.wph.trent.nhs.uk (212.196.142.129) by relay.nhs.uk (Syntegra-1 6.0.037) id 3CAB16F300014131; Thu, 4 Apr 2002 09:26:43 +0100 Received: by bilbo.wph.trent.nhs.uk with Internet Mail Service (5.5.2232.9) id ; Thu, 4 Apr 2002 09:23:09 +0100 Message-ID: <697DE9C94DFED211A6DB00A0C9067D874093CE@bilbo.wph.trent.nhs.uk> To: sthiesson@scf.sk.ca Cc: linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 09:23:01 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: glynn.wilson@sth.nhs.uk To: sthiesson@scf.sk.ca Cc: linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 09:23:01 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Looks like Franklin and Grunfos motors are lubed differently. We have only ever had grundfos motors here and I repeat are definately but definately lubed with water. A point thst most certainly is pointed out in the Grundfos literature we have here. Glynn Sheffield UK -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: 03 April 2002 20:30 To: Linac list (E-mail); Loeks, Michael Subject: Re: RE: WATER PUMP VARIAN 2100C I agree with everything except the lubrication comment. I think you meant to say cooled by water. The motor I took apart was sealed with ceramic and rubber seals and could not have been lubed with water. As an interesting note I discovered on the data sheet that came with the new motor (a Franklin) that a special sleeve is required to insure proper cooling...I quote now: For Franklin motors only: The minimum water velocity over 4" motors is .25 feet per second. A flow inducer or sleeve must be used if the water enters the well above the motor or if there is insufficient water flow past the motor. Grundfos 4" submersible motors do not require a minimum flow or flow sleeve. The above note is off of the Grundfos SP4" Installation and operating instruction manual. So I pose the question .. Are all Franklin motors doomed because of cooling concerns?? Scot. 4/3/2002 11:21:45 AM, "Loeks, Michael" wrote: >Gentlemen, > I have had several pump motors die a very premature death as well so I >have a few comments about them. >1. All our pump motors that failed were manufactured by Franklin Electric. >This may be a clue. >2. Grundfos does manufacture motors as well as pumps. >3. The pump and the pump MOTOR are both lubricated with water according to >Franklin Electric's and Grundfos' web sites. >4. My experience has been that the black material being ejected from the >pump is at least partially composed of minute metallic bits as it can be >picked up with a magnet. >5. Our machines that had the pump motor problem were using the small DI >canisters. >Has anyone who experienced a premature pump motor failure had a problem with >a Grundfos motor or have they all been manufactured by Franklin Electric? > >Thanks, >Michael Loeks >Providence Portland Medical Center >Portland, Oregon > > >*************************************************************************** * >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 10:54:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t30f-0004Br-00; Thu, 04 Apr 2002 10:54:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CBA7C1112F2; Thu, 4 Apr 2002 10:56:52 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id CAA06021 for linac-eng-list; Thu, 4 Apr 2002 02:37:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA06017 for ; Thu, 4 Apr 2002 02:37:46 -0600 (CST) From: glynn.wilson@sth.nhs.uk Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16t2k7-0002i2-00; Thu, 04 Apr 2002 09:37:15 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.0.037) id 3C81284400272E7B for linac-eng@plato.aristotle.net; Thu, 4 Apr 2002 09:37:15 +0100 Received: from bilbo.wph.trent.nhs.uk (212.196.142.129) by relay.nhs.uk (Syntegra-3 6.0.037) id 3CAB18420000B6D7; Thu, 4 Apr 2002 09:37:15 +0100 Received: by bilbo.wph.trent.nhs.uk with Internet Mail Service (5.5.2232.9) id ; Thu, 4 Apr 2002 09:33:41 +0100 Message-ID: <697DE9C94DFED211A6DB00A0C9067D874093CF@bilbo.wph.trent.nhs.uk> To: sthiesson@scf.sk.ca, linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 09:33:35 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: glynn.wilson@sth.nhs.uk To: sthiesson@scf.sk.ca, linac-eng@plato.aristotle.net Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 09:33:35 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Scot Yep Grunfos do include a very small amount of silicone oil in their manufacture ( <5% to comply with water regs ) but for our installs distilled water is ok as the top up. The problem with the system is that the pump mechanism should be installed in a collar as someone on the site has pointed out. This ensures water flow across the motor before entry into the pump. This is because the inlet is above the motor. Varian have not installed a collar in the tank. If Franklin motors are grease filled as opposed to the Grunfos type this may be the problem. Any lack of water flow accross the motor could be causing the motor to overheat thus expanding the grease and breaking the seal. Glynn Sheffield UK -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: 03 April 2002 21:20 To: Linac list (E-mail); Loeks, Michael; scot thiesson Subject: Re: RE: WATER PUMP VARIAN 2100C Correction to my water cooling comment.... Was it curiosity that killed the cat? Maybe so. I disassembled a water pump motor and discovered ? water. It was on closer inspection a very oily water. The bottom bearing is a ceramic on ceramic type that rides on a film of this light oil. I suspect the water is there mostly for heat transfer to the outside world. Of course the whole unit is sealed up tight as a drum so if this concoction ever escaped into the outside world it would be VERY nasty indeed. I still stand by my Franklin remarks. These motors seem to be border line at best for this application with a maximum operating temp of 30c (the Grundfos is 40c) Scot. 4/3/2002 1:30:23 PM, scot thiesson wrote: >I agree with everything except the lubrication comment. I think you meant to say cooled by water. >The motor I took apart was sealed with ceramic and rubber seals and could not have been lubed with water. >As an interesting note I discovered on the data sheet that came with the new motor (a Franklin) that a special sleeve is required to insure proper cooling...I quote now: > >For Franklin motors only: The minimum water velocity over 4" motors is .25 feet per second. >A flow inducer or sleeve must be used if the water enters the well above the motor or if there is insufficient water flow past the motor. >Grundfos 4" submersible motors do not require a minimum flow or flow sleeve. > >The above note is off of the Grundfos SP4" Installation and operating instruction manual. >So I pose the question .. >Are all Franklin motors doomed because of cooling concerns?? > >Scot. > > > >4/3/2002 11:21:45 AM, "Loeks, Michael" wrote: > >>Gentlemen, >> I have had several pump motors die a very premature death as well so I >>have a few comments about them. >>1. All our pump motors that failed were manufactured by Franklin Electric. >>This may be a clue. >>2. Grundfos does manufacture motors as well as pumps. >>3. The pump and the pump MOTOR are both lubricated with water according to >>Franklin Electric's and Grundfos' web sites. >>4. My experience has been that the black material being ejected from the >>pump is at least partially composed of minute metallic bits as it can be >>picked up with a magnet. >>5. Our machines that had the pump motor problem were using the small DI >>canisters. >>Has anyone who experienced a premature pump motor failure had a problem with >>a Grundfos motor or have they all been manufactured by Franklin Electric? >> >>Thanks, >>Michael Loeks >>Providence Portland Medical Center >>Portland, Oregon >> >> >>************************************************************************** ** >>This message is intended for the sole use of the individual and entity to >>whom it is addressed, and may contain information that is privileged, >>confidential and exempt from disclosure under applicable law. If you are >>not the intended addressee, nor authorized to receive for the intended >>addressee, you are hereby notified that you may not use, copy, disclose or >>distribute to anyone the message or any information contained in the >>message. If you have received this message in error, please immediately >>advise the sender by reply email and delete the message. Thank you very >>much. >> > > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 14:50:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t6gn-0006MY-00; Thu, 04 Apr 2002 14:50:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 85FDE1112F2; Thu, 4 Apr 2002 14:52:40 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA12725 for linac-eng-list; Thu, 4 Apr 2002 06:34:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from azvu.nl (nucleus.azvu.nl [130.37.210.210]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA12721 for ; Thu, 4 Apr 2002 06:34:15 -0600 (CST) Received: by nucleus.azvu.nl id <116175>; Thu, 4 Apr 2002 14:35:06 +0200 Message-Id: <02Apr4.143506cest.116175@nucleus.azvu.nl> From: "Geest, F.G.M. de" To: "'linac-eng@plato.aristotle.net'" Subject: under dose Date: Thu, 4 Apr 2002 14:33:34 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Geest, F.G.M. de" To: "'linac-eng@plato.aristotle.net'" Subject: under dose Date: Thu, 4 Apr 2002 14:33:34 +0200 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hallo, When we start in the morning we have under dose for all our electron energy's (6,9 12 16 and 20) on our CL 2300. After half an hour all the electron energy's are working correct. Suggestions? FGM de Geest E-mail fgm.geest@VUmc.nl 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 15:44:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t7XM-0006y9-00; Thu, 04 Apr 2002 15:44:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F3AFB1112F2; Thu, 4 Apr 2002 15:46:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA15239 for linac-eng-list; Thu, 4 Apr 2002 07:28:59 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from radoncnt1.fccc.edu (radoncnt1.fccc.edu [131.249.10.49]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA15235 for ; Thu, 4 Apr 2002 07:28:57 -0600 (CST) Received: by radoncnt1.fccc.edu with Internet Mail Service (5.5.2653.19) id ; Thu, 4 Apr 2002 08:28:06 -0500 Message-ID: From: "Liounis, Dave" To: "linac engineer (E-mail)" Subject: Green Diode Laser Life Date: Thu, 4 Apr 2002 08:27:55 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Liounis, Dave" To: "linac engineer (E-mail)" Subject: Green Diode Laser Life Date: Thu, 4 Apr 2002 08:27:55 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello: We have been having a lot of problems with our Scanditronix Emerald Green lasers. We have only had them for two years and had to send back many of the lasers for repair. Not only is this expensive but the turn around time has been excessive. I was wondering how the reliability of other green diode lasers are? Dave Liounis Fox Chase Cancer Center Department of Radiation Oncology Engineering 215-728-2997 D_LIOUNIS@FCCC.EDU 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 16:49:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t8YG-0007jQ-00; Thu, 04 Apr 2002 16:49:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6D6C51112F1; Thu, 4 Apr 2002 16:51:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA19482 for linac-eng-list; Thu, 4 Apr 2002 08:32:01 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA19475 for ; Thu, 4 Apr 2002 08:31:59 -0600 (CST) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Thu, 4 Apr 2002 16:31:42 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Thu, 4 Apr 2002 16:31:42 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A6E5@exchange-5.orebroll.se> To: linac-eng@plato.aristotle.net Subject: SV: Green Diode Laser Life Date: Thu, 4 Apr 2002 16:31:41 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA19476 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: linac-eng@plato.aristotle.net Subject: SV: Green Diode Laser Life Date: Thu, 4 Apr 2002 16:31:41 +0200 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA19476 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk LAP lasers also quote around 2 year max. This is because the green lasers are driven harder. Something to do with being red emitters which are frequency doubled, so you need a higher input due to losses. For this reason we decided they were too costly. Tel -----Ursprungligt meddelande----- Från: Liounis, Dave [mailto:D_Liounis@FCCC.EDU] Skickat: den 4 april 2002 15:28 Till: linac engineer (E-mail) Ämne: Green Diode Laser Life Hello: We have been having a lot of problems with our Scanditronix Emerald Green lasers. We have only had them for two years and had to send back many of the lasers for repair. Not only is this expensive but the turn around time has been excessive. I was wondering how the reliability of other green diode lasers are? Dave Liounis Fox Chase Cancer Center Department of Radiation Oncology Engineering 215-728-2997 D_LIOUNIS@FCCC.EDU 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 16:52:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t8at-0007le-00; Thu, 04 Apr 2002 16:52:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 758CA1112F1; Thu, 4 Apr 2002 16:52:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA19671 for linac-eng-list; Thu, 4 Apr 2002 08:35:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from uky.edu (smtp1.uky.edu [128.163.2.82]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA19667 for ; Thu, 4 Apr 2002 08:35:54 -0600 (CST) Received: from UKCMC-MGUKUZYJS dfarrer@uky.edu [128.163.65.183] by uky.edu with Novell NIMS $Revision: 2.88 $ on Novell NetWare; Thu, 04 Apr 2002 09:35:50 -0500 Message-Id: <3.0.2.32.20020404093551.00dd33b8@pop.uky.edu> X-Sender: dfarrer@pop.uky.edu X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.2 (32) Date: Thu, 04 Apr 2002 09:35:51 -0500 To: linac-eng@plato.aristotle.net From: Dan Farrer Subject: Re: Green Diode Laser Life In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: dfarrer@pop.uky.edu Date: Thu, 04 Apr 2002 09:35:51 -0500 To: linac-eng@plato.aristotle.net From: Dan Farrer Subject: Re: Green Diode Laser Life In-Reply-To: Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave, We have experienced reliability problems with Diacor green lasers. Over a one year warranty with a new Varian Silhoutte we replaced 12 green lasers. We finally gave up and requested the reds. The green lasers were initially great, then after 6-8 weeks they slowly faded and in two to three days the light was lost. Dan Farrer U of Ky Medical Center At 08:27 AM 4/4/2002 -0500, you wrote: >Hello: > >We have been having a lot of problems with our Scanditronix Emerald Green >lasers. We have only had them for two years and had to send back many of the >lasers for repair. Not only is this expensive but the turn around time has >been excessive. I was wondering how the reliability of other green diode >lasers are? > >Dave Liounis >Fox Chase Cancer Center >Department of Radiation Oncology >Engineering >215-728-2997 >D_LIOUNIS@FCCC.EDU > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 16:54:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t8da-0007nM-00; Thu, 04 Apr 2002 16:54:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ABBF31112F1; Thu, 4 Apr 2002 16:57:28 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA19915 for linac-eng-list; Thu, 4 Apr 2002 08:40:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA19911 for ; Thu, 4 Apr 2002 08:40:52 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16t8PT-0005tp-00; Thu, 04 Apr 2002 15:40:19 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A200006E5C9 for linac-eng@plato.aristotle.net; Thu, 4 Apr 2002 15:40:19 +0100 Received: from exchange2.hillsrd (193.130.72.200) by relay.nhs.uk (Syntegra-3 6.0.037) id 3CAB18420001B94D; Thu, 4 Apr 2002 15:40:19 +0100 Received: by mail.addenbrookes.anglox.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Thu, 4 Apr 2002 15:40:39 +0100 Message-ID: <07EBC420AD13D5118C6A0002A52865C23B14F7@mail.addenbrookes.anglox.nhs.uk> From: "Twyman, Paul" To: "linac engineer (E-mail)" , "'Liounis, Dave'" Subject: RE: Green Diode Laser Life Date: Thu, 4 Apr 2002 15:40:36 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Twyman, Paul" To: "linac engineer (E-mail)" , "'Liounis, Dave'" Subject: RE: Green Diode Laser Life Date: Thu, 4 Apr 2002 15:40:36 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Dave We also used the green scanditronix emerald laser and suffered 3 or 4 failures. I believe that there was a problem with the diodes. I thought that they had resolved this problem. I only specify the LAP lasers now as they have proved to be both reliable and stable. Paul T Medical Physics dept Box 152 Addenbrookes hospital Cambridge CB2 2QQ United Kingdom tel 01223 586782 fax 01223 257137 > ---------- > From: Liounis, Dave[SMTP:D_Liounis@FCCC.EDU] > Sent: 04 April 2002 14:27 > To: linac engineer (E-mail) > Subject: Green Diode Laser Life > > Hello: > > We have been having a lot of problems with our Scanditronix Emerald Green > lasers. We have only had them for two years and had to send back many of > the > lasers for repair. Not only is this expensive but the turn around time has > been excessive. I was wondering how the reliability of other green diode > lasers are? > > Dave Liounis > Fox Chase Cancer Center > Department of Radiation Oncology > Engineering > 215-728-2997 > D_LIOUNIS@FCCC.EDU > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 17:57:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16t9cG-0008EG-00; Thu, 04 Apr 2002 17:57:36 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BDE421112F1; Thu, 4 Apr 2002 18:00:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA24460 for linac-eng-list; Thu, 4 Apr 2002 09:38:40 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.solcon.nl (mail.solcon.nl [212.45.33.11]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA24454 for ; Thu, 4 Apr 2002 09:38:37 -0600 (CST) Received: from u7d8e8 (en-39201.solcon.nl [212.45.39.201]) by mail.solcon.nl (8.11.2/8.11.0) with SMTP id g34FcIF29123 for ; Thu, 4 Apr 2002 17:38:18 +0200 Message-ID: <000501c1dbef$00626680$c9272dd4@u7d8e8> From: "fam. De Bruijne" To: Subject: Fw: suggestion Date: Thu, 4 Apr 2002 17:39:58 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 X-RAVMilter-Version: 8.3.0(snapshot 20010925) (mail.solcon.nl) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "fam. De Bruijne" To: Subject: Fw: suggestion Date: Thu, 4 Apr 2002 17:39:58 +0200 Content-Type: text/plain; charset="Windows-1252" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 X-RAVMilter-Version: 8.3.0(snapshot 20010925) (mail.solcon.nl) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk > > > > Hi Rich, > > > > Getting angry? > > Getting old? > > > > We'll see what Alex is doing with this information. > > (I informed him personal, NOT via this list) > > > > Regards, Keesjan > > > > -----Original Message----- > > From: Rich Kimball [SMTP:richardkimball3@attbi.com] > > Sent: Tuesday, April 02, 2002 1:47 PM > > To: linac-eng@plato.aristotle.net > > Subject: Re: suggestion > > > > Uh....guys....do we have enough suggestions now? > > > > This is as bad as the spam mail. > > > > Rich Kimball > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 18:35:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tACp-0000JC-00; Thu, 04 Apr 2002 18:35:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9C8661112F1; Thu, 4 Apr 2002 18:37:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA27883 for linac-eng-list; Thu, 4 Apr 2002 10:20:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA27878 for ; Thu, 4 Apr 2002 10:20:06 -0600 (CST) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g34GJUV16801 for ; Thu, 4 Apr 2002 10:19:30 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g34GJUs16797 for ; Thu, 4 Apr 2002 10:19:30 -0600 (CST) Received: through eSafe SMTP Relay 1016464309; Thu Apr 04 10:19:30 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 4 Apr 2002 10:19:30 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E78@wmhmail.phci.org> From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: Varian water pumps Date: Thu, 4 Apr 2002 10:19:25 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DBF4.7CC03900" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: Varian water pumps Date: Thu, 4 Apr 2002 10:19:25 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DBF4.7CC03900" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DBF4.7CC03900 Content-Type: text/plain FYI the part number for the GRUNDFOS pump with the GRUNFOS motor is # 25S15-9G for just the GRUNFOS motor the number is # 51530095. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 ------_=_NextPart_001_01C1DBF4.7CC03900 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Varian water pumps

    FYI   the part number for = the GRUNDFOS pump with the GRUNFOS motor is # 25S15-9G  for just = the GRUNFOS motor the number is # 51530095.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


    ------_=_NextPart_001_01C1DBF4.7CC03900-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 18:44:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tALq-0000QQ-00; Thu, 04 Apr 2002 18:44:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 813351112F1; Thu, 4 Apr 2002 18:47:16 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA28715 for linac-eng-list; Thu, 4 Apr 2002 10:29:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA28710 for ; Thu, 4 Apr 2002 10:29:51 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Thu, 04 Apr 2002 10:32:42 -0600 Received: by corpexcon01.corp.medcity.net with Internet Mail Service (5.5.2653.19) id <2DM4370P>; Thu, 4 Apr 2002 10:31:17 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8663C@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'glynn.wilson@sth.nhs.uk'" Cc: "Linac list (E-mail)" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 10:29:54 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'glynn.wilson@sth.nhs.uk'" Cc: "Linac list (E-mail)" Subject: RE: RE: WATER PUMP VARIAN 2100C Date: Thu, 4 Apr 2002 10:29:54 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I stand corrected! Thanks Mike T. > -----Original Message----- > From: glynn.wilson@sth.nhs.uk [SMTP:glynn.wilson@sth.nhs.uk] > Sent: Thursday, April 04, 2002 2:13 AM > To: Michael.Tirabassi@HCAhealthcare.com > Cc: linac-eng@plato.aristotle.net > Subject: RE: RE: WATER PUMP VARIAN 2100C > > Mike > The motor is sealed but it can be stripped down. > It is definately lubed with water. > I have stripped quite a few in my time. > The pumps and motors are designed for wells and bore holes to provide > potent > water. > As such water regulations insist that no grease is able to be released > into > the water table. > If you remove the three screws at the top of the motor the plate will be > easy to remove. Under that is a rubber seal held in place by a spring ring > and rubber ring. It is then possible to remove the rotor. You will see > that > there is no grease to be seen only distilled water. Grundfos installation > instructions say that the priming screw should be removed and the motor > body > filled with lube water prior to install. > Glynn > Sheffield > UK > > -----Original Message----- > From: Tirabassi Michael [mailto:Michael.Tirabassi@HCAhealthcare.com] > Sent: 03 April 2002 16:38 > To: 'glynn.wilson@sth.nhs.uk' > Cc: Linac list (E-mail) > Subject: RE: RE: WATER PUMP VARIAN 2100C > > > Glynn, > > The pump motor is supposed to sealed and the lubrication for it will > be grease. The actual pump section is "lubed" with water. > I have never seen a pump "motor" that uses water as a lubricant! It > sounds like you lost a seal at the shaft end of the motor and grease > migrated out into the pump section. > > Typically the pumps should last several years before replacement. I > replaced the pump on my 1800 after 10 years. It was still running but > would > not come up right off after a water change. It was a Grundfos. > > Mike T. > > > > > -----Original Message----- > > From: glynn.wilson@sth.nhs.uk [SMTP:glynn.wilson@sth.nhs.uk] > > Sent: Wednesday, April 03, 2002 1:23 AM > > To: sthiesson@scf.sk.ca; linac-eng@plato.aristotle.net > > Subject: RE: RE: WATER PUMP VARIAN 2100C > > > > Ours was a one off failure where somehow the pump motor had been filled > > with > > grease instead of water as the lube. We have pumps that have been in for > > over 10 years and no problem. > > There could be more rogue motors out there though and DI filter or not > it > > aint gonna stop the grease getting into the water system. All our > filters > > were stripped and looked more like the inside of a Chevvy gearbox than a > > linac. > > Glynn > > Sheffield > > UK > > > > -----Original Message----- > > From: scot thiesson [mailto:sthiesson@scf.sk.ca] > > Sent: 02 April 2002 18:19 > > To: 'glynn.wilson@sth.nhs.uk'; linac-eng@plato.aristotle.net; Wilson, > > Jim > > Subject: Re: RE: WATER PUMP VARIAN 2100C > > > > > > Wow. 6-8 months sounds like a very short pump life to me. Are they > > actually > > failing in that time? > > I have had the same problems here and have decided to change the water > > pumps > > on the Varian machines every year on a PM. Is there any > > other manufacturer out there utilizing a submersible pump? It just seems > > like a very bad idea to me. > > > > Scot Thiesson > > Allan Blair Cancer Centre. > > Regina Sask. Canada > > > > > > > > 4/2/2002 10:21:03 AM, "Wilson, Jim" wrote: > > > > >We have had the same problem for the last 3 years. We have had to > replace > > >the pump every 6-8 months. The Franklin motor somehow comes apart and > > fills > > >the tank with black goo. We have had no other problems associated with > > this > > >failure. We have not changed the type of water we are using or have > done > > >anything else different that we can think of to cause this. > > > > > >-----Original Message----- > > >From: glynn.wilson@sth.nhs.uk [mailto:glynn.wilson@sth.nhs.uk] > > >Sent: Tuesday, April 02, 2002 5:43 AM > > >To: linac-eng@plato.aristotle.net > > >Subject: WATER PUMP VARIAN 2100C > > > > > > > > >Hi Group > > > > > >We had a new 2100CD installed # 1766 last Aug > > >The water pump failed on the set just before Christmas. > > >Varian replaced it under warranty. I stripped the old pump and motor > and > > >found that the motor had been filled with black graphite grease instead > > of > > >water as a lubricant. > > >The grease had spilled out into the water system and affected the > rubber > > >components. Particles had then seized the pump. > > >The new pump fitted by Varian lasted 6 weeks and again seized. > > >Investigations showed that grease had attacked the rubber hoses. > > >System was flushed using mild detergent and then neutralized. The hoses > > were > > >then replaced. > > >Low flow had damaged the output stages of the RF DRIVER and it had to > be > > >replaced. > > >Time will tell what other damage has been done! > > >Thankfully all done under warranty. > > >Just posting this as a warning in case there are more pumps out there > > with > > >grease filled motors. > > > > > >Glynn Wilson > > >Weston Park Hospital > > >Sheffield > > >UK > > > > > > >************************************************************************* > > ** > > * > > >This message is intended for the sole use of the individual and entity > to > > >whom it is addressed, and may contain information that is privileged, > > >confidential and exempt from disclosure under applicable law. If you > are > > >not the intended addressee, nor authorized to receive for the intended > > >addressee, you are hereby notified that you may not use, copy, disclose > > or > > >distribute to anyone the message or any information contained in the > > >message. If you have received this message in error, please > immediately > > >advise the sender by reply email and delete the message. Thank you > very > > >much. > > > > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 18:58:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tAZ9-0000S8-00; Thu, 04 Apr 2002 18:58:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E44811112F1; Thu, 4 Apr 2002 19:01:01 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA29702 for linac-eng-list; Thu, 4 Apr 2002 10:41:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29698 for ; Thu, 4 Apr 2002 10:41:39 -0600 (CST) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g34Gf9d18061 for ; Thu, 4 Apr 2002 10:41:09 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g34Gf9s18057 for ; Thu, 4 Apr 2002 10:41:09 -0600 (CST) Received: through eSafe SMTP Relay 1016464309; Thu Apr 04 10:41:09 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 4 Apr 2002 10:41:09 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E7A@wmhmail.phci.org> From: "Williams, Rod" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Varian water pumps Date: Thu, 4 Apr 2002 10:41:06 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DBF7.844CDF40" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Varian water pumps Date: Thu, 4 Apr 2002 10:41:06 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DBF7.844CDF40" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DBF7.844CDF40 Content-Type: text/plain > Hi sorry it is for HIGH E. > > Rod.Williams@phci.org > WAUKESHA MEMORIAL HOSPITAL > 262-928-4734 > > > -----Original Message----- > From: Nelson, Steve [SMTP:nelson@radonc.musc.edu] > Sent: Thursday, April 04, 2002 10:34 AM > To: 'Williams, Rod' > Subject: RE: Varian water pumps > > Rod, > Is this number for the pump used in the High Energy units? > regards, > Stephen > > -----Original Message----- > From: Williams, Rod [mailto:rod.williams@phci.org] > Sent: Thursday, April 04, 2002 11:19 AM > To: linac-eng@plato.aristotle.net > Subject: Varian water pumps > > > > FYI the part number for the GRUNDFOS pump with the GRUNFOS > motor is # 25S15-9G for just the GRUNFOS motor the number is # 51530095. > > Rod.Williams@phci.org > WAUKESHA MEMORIAL HOSPITAL > 262-928-4734 > > ------_=_NextPart_001_01C1DBF7.844CDF40 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Varian water pumps


      Hi sorry  it is = for HIGH E.

      Rod.Williams@phci.org
      WAUKESHA MEMORIAL HOSPITAL
      262-928-4734


        -----Original Message-----
        From:   Nelson, Steve = [SMTP:nelson@radonc.musc.edu]
        Sent:   Thursday, April 04, 2002 10:34 AM
        To:     'Williams, Rod'
        Subject:       = RE: Varian water pumps

        Rod,
            = Is this number for the pump used in the High Energy units?
        regards,
        Stephen

          -----Original Message-----
          From: Williams, Rod [mailto:rod.williams@phci.org]<= BR> Sent: Thursday, April 04, 2002 11:19 AM
          To: linac-eng@plato.aristotle.net
          Subject: Varian water pumps

          FYI   the part number for = the GRUNDFOS pump with the GRUNFOS motor is # 25S15-9G  for just = the GRUNFOS motor the number is # 51530095.

          Rod.Williams@phci.org
          WAUKESHA MEMORIAL = HOSPITAL
          262-928-4734


    ------_=_NextPart_001_01C1DBF7.844CDF40-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 20:06:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tBdK-0000Yj-00; Thu, 04 Apr 2002 20:06:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2FC161112F2; Thu, 4 Apr 2002 20:09:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA06850 for linac-eng-list; Thu, 4 Apr 2002 11:45:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc53.attbi.com (rwcrmhc53.attbi.com [204.127.198.39]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA06835 for ; Thu, 4 Apr 2002 11:45:06 -0600 (CST) Received: from PaulRafalski ([66.229.4.122]) by rwcrmhc53.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020404174436.NBT21252.rwcrmhc53.attbi.com@PaulRafalski> for ; Thu, 4 Apr 2002 17:44:36 +0000 Message-ID: <000801c1dc07$c0b2a720$7a04e542@we.client2.attbi.com> From: "progenitor" To: Subject: linac engineers Date: Thu, 4 Apr 2002 10:37:19 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C1DBC4.B25D0C80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "progenitor" To: Subject: linac engineers Date: Thu, 4 Apr 2002 10:37:19 -0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C1DBC4.B25D0C80" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C1DBC4.B25D0C80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable current engineer, is there a forum available? main concern varian and siemens accelerators paul rafalski ------=_NextPart_000_0005_01C1DBC4.B25D0C80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    current engineer, is there a forum=20 available?
    main concern varian and siemens=20 accelerators
     
    paul = rafalski
    ------=_NextPart_000_0005_01C1DBC4.B25D0C80-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 20:25:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tBvB-0000ar-00; Thu, 04 Apr 2002 20:25:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7634B1112F1; Thu, 4 Apr 2002 20:27:25 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA13652 for linac-eng-list; Thu, 4 Apr 2002 12:02:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mskmail.mskcc.org (mskmail.mskcc.org [140.163.6.254]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA13632 for ; Thu, 4 Apr 2002 12:02:38 -0600 (CST) From: kwedlom@mskcc.org Received: from localhost (root@localhost) by mskmail.mskcc.org (8.9.3 (PHNE_18546)/8.9.3) with ESMTP id NAA14128 for ; Thu, 4 Apr 2002 13:02:05 -0500 (EST) X-OpenMail-Hops: 1 Date: Thu, 4 Apr 2002 13:02:04 -0500 Message-Id: Subject: Salary MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline ;Creation-Date="Thu, 4 Apr 2002 12:57:06 -0500" ;Modification-Date="Thu, 4 Apr 2002 13:02:04 -0500" Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: kwedlom@mskcc.org X-OpenMail-Hops: 1 Date: Thu, 4 Apr 2002 13:02:04 -0500 Subject: Salary To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline ;Creation-Date="Thu, 4 Apr 2002 12:57:06 -0500" ;Modification-Date="Thu, 4 Apr 2002 13:02:04 -0500" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Does anyone know if the have a salary survey for the United States for for the different engineering levels..for example: entry level position $30,000 level 2 position 40,000... it would be greatly appreciated thanks, mike 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 04 21:09:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tCc8-0000fn-00; Thu, 04 Apr 2002 21:09:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9286F1112F1; Thu, 4 Apr 2002 21:12:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA02512 for linac-eng-list; Thu, 4 Apr 2002 12:49:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA02504 for ; Thu, 4 Apr 2002 12:49:22 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA00290; Thu, 4 Apr 2002 12:40:10 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256B91.006678CD ; Thu, 4 Apr 2002 12:39:15 -0600 X-Lotus-FromDomain: MDACC To: kwedlom@mskcc.org Cc: linac-eng@plato.aristotle.net Message-ID: <86256B91.00667818.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 4 Apr 2002 12:41:44 -0600 Subject: Re: Salary Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: kwedlom@mskcc.org Cc: linac-eng@plato.aristotle.net Date: Thu, 4 Apr 2002 12:41:44 -0600 Subject: Re: Salary Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk There is no independent, "objective" or "official" salary survey such as we see with the AAPM. Of course developing such a vehicle is one of the goals of the Radiotherapy Service Engineers Association (RSEA); By the way, the RSEA will be holding their first annual meeting this summer, to be will be held in Montreal Jul;y 13 - 14 in conjunction with the AAPM and COMP. If you are interested in attending/membership, send email to: chusmith@mdanderson.org And you will be placed on a mailing list for registration packet. Stay tuned for more details later on this venue... Tim Waldron kwedlom@mskcc.org on 04/04/2002 12:02:04 PM To: linac-eng@plato.aristotle.net cc: (bcc: Timothy J. Waldron/MDACC) Subject: Salary Does anyone know if the have a salary survey for the United States for for the different engineering levels..for example: entry level position $30,000 level 2 position 40,000... it would be greatly appreciated thanks, mike 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 00:21:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tFbx-0000xo-00; Fri, 05 Apr 2002 00:21:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0DEF11112F1; Fri, 5 Apr 2002 00:24:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA01913 for linac-eng-list; Thu, 4 Apr 2002 15:48:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA01869 for ; Thu, 4 Apr 2002 15:48:29 -0600 (CST) Received: from Mailsweeper2.chhlth.govt.nz (mailsweeper2.chhlth.govt.nz [159.117.18.162]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA24682 for ; Fri, 5 Apr 2002 09:35:46 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper2.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 5 Apr 2002 09:52:40 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 05 Apr 2002 09:47:39 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 05 Apr 2002 09:47:29 +1200 From: "Dave Pinchin" To: Subject: Re: under dose Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA01910 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 05 Apr 2002 09:47:29 +1200 From: "Dave Pinchin" To: Subject: Re: under dose Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA01910 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, We have had a similar situation here for 10+years (2100C #40). We have learned to live with it. The first thing that you need to do is work out WHY your machine is suffering from 'morning sickness'. There are a myriad different reasons. Take a print of the meters screen using communications mode event logger and compare these with the same energy in service mode. Take special note of AFC, GUNI, RFDriver, PFNV and HVPSI. You can also check the various waveforms (cold machine vs hot machine) using a storage scope. When you know WHY you may be able to work out a solution. Let the list know progress. :D >>> "Geest, F.G.M. de" 5/04/02 00:33:34 >>> Hallo, When we start in the morning we have under dose for all our electron energy's (6,9 12 16 and 20) on our CL 2300. After half an hour all the electron energy's are working correct. Suggestions? FGM de Geest E-mail fgm.geest@VUmc.nl ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 00:21:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tFc0-0000xr-00; Fri, 05 Apr 2002 00:21:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2BF3D1112F3; Fri, 5 Apr 2002 00:24:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA26442 for linac-eng-list; Thu, 4 Apr 2002 15:36:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA26419 for ; Thu, 4 Apr 2002 15:36:41 -0600 (CST) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Thu, 04 Apr 2002 14:36:07 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id <2HWYZ9M9>; Thu, 4 Apr 2002 14:36:07 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D0752360720@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: LCD Monitor in Treatment Room Date: Thu, 4 Apr 2002 14:36:05 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: LCD Monitor in Treatment Room Date: Thu, 4 Apr 2002 14:36:05 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All, We are going to remote our IMPAC information into the treatment room on our Elekta 6/15 MV machine. I've never put an LCD monitor into a treatment room so I am wondering what effect the radiation will have on it. We are planning on putting the monitor overhead at the foot end of the table. This is near our CCD camera for patient viewing. This camera now has some fairly significant radiation damage on it and I am wondering if the LCD panel would be subject to the same type of damage. Anyone out there have some experience with LCD flat panels in a treatment room? If so I would appreciate your comments. Thanks in advance, Dan Watters University Medical Center Tucson, Arizona > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 01:05:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tGIZ-00011g-00; Fri, 05 Apr 2002 01:05:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B03EC1112F1; Fri, 5 Apr 2002 01:08:17 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA15021 for linac-eng-list; Thu, 4 Apr 2002 16:46:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r03.mx.aol.com (imo-r03.mx.aol.com [152.163.225.99]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA15011 for ; Thu, 4 Apr 2002 16:46:14 -0600 (CST) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-r03.mx.aol.com (mail_out_v32.5.) id y.f4.196cf287 (16782) for ; Thu, 4 Apr 2002 17:45:31 -0500 (EST) Message-ID: Date: Thu, 4 Apr 2002 17:45:31 EST Subject: Remove the removers To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_f4.196cf287.29de318b_boundary" X-Mailer: AOL 6.0 for Windows US sub 10560 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Thu, 4 Apr 2002 17:45:31 EST Subject: Remove the removers To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_f4.196cf287.29de318b_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_f4.196cf287.29de318b_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Forget about the spam. Block these guys trying to remove to the posting address. Sorry for this spam. D. Steimel --part1_f4.196cf287.29de318b_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Forget about the spam. Block these guys trying to remove to the posting address.
    Sorry for this spam.
    D. Steimel     --part1_f4.196cf287.29de318b_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 01:21:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tGXg-000130-00; Fri, 05 Apr 2002 01:21:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB4501112F1; Fri, 5 Apr 2002 01:23:53 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA16776 for linac-eng-list; Thu, 4 Apr 2002 17:03:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA16772 for ; Thu, 4 Apr 2002 17:03:31 -0600 (CST) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id RAA11871; Thu, 4 Apr 2002 17:57:57 -0500 (EST) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma011723; Thu, 4 Apr 02 17:56:59 -0500 Subject: Varian water pumps To: linac-eng@plato.aristotle.net Cc: lhill@bhcpns.org X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Thu, 4 Apr 2002 17:01:34 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 04/04/2002 05:01:34 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Varian water pumps To: linac-eng@plato.aristotle.net Cc: lhill@bhcpns.org Date: Thu, 4 Apr 2002 17:01:34 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 04/04/2002 05:01:34 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello all.... I've been reading the commentary on the well pump issues and I too have seen a problem with the water pump dumping a black goo into the water tank, which makes a terrible mess. I experienced this on our 2100c SN. 363 vintage 1992 about 6 months ago. My question to the group is this also something that happens to low energy units? I have a 600c vintage 1995 and sure don't want the same problem to happen with it.... Is there some indicator to look for, has someone got an idea how to avoid this mess. Thanks in advance for your insight on this and other issues....... Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 12:28:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tQws-0004gY-00; Fri, 05 Apr 2002 12:28:02 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2C7201112F1; Fri, 5 Apr 2002 12:30:34 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA15636 for linac-eng-list; Fri, 5 Apr 2002 04:10:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA15632 for ; Fri, 5 Apr 2002 04:10:02 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g35A9Wh28962 for ; Fri, 5 Apr 2002 04:09:32 -0600 (CST) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g35A9V828958 for ; Fri, 5 Apr 2002 04:09:31 -0600 (CST) Received: through eSafe SMTP Relay 1016464309; Fri Apr 05 04:09:31 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Apr 2002 04:09:31 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E7B@wmhmail.phci.org> From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: RE: under dose Date: Fri, 5 Apr 2002 04:09:30 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DC89.F9C03C80" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: RE: under dose Date: Fri, 5 Apr 2002 04:09:30 -0600 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DC89.F9C03C80" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DC89.F9C03C80 Content-Type: text/plain Hi I have found with the three 21ex machines, if I tune in the morning before they start treating I have problems,this was also true with the old 1800. I have learned to tune only later on in the day. As Dave said your problems may be related to voltage or some other changes. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > Sent: Thursday, April 04, 2002 3:47 PM > To: linac-eng@plato.aristotle.net > Subject: Re: under dose > > G'day, > We have had a similar situation here for 10+years (2100C #40). We have > learned to live with it. > > The first thing that you need to do is work out WHY your machine is > suffering from 'morning sickness'. There are a myriad different reasons. > > Take a print of the meters screen using communications mode event logger > and compare these with the same energy in service mode. Take special note > of AFC, GUNI, RFDriver, PFNV and HVPSI. > > You can also check the various waveforms (cold machine vs hot machine) > using a storage scope. > > When you know WHY you may be able to work out a solution. > > Let the list know progress. > :D > > > >>> "Geest, F.G.M. de" 5/04/02 00:33:34 >>> > Hallo, > When we start in the morning we have under dose for all our electron > energy's (6,9 12 16 and 20) on our CL 2300. After half an hour all the > electron energy's are working correct. Suggestions? > > > > > FGM de Geest > E-mail fgm.geest@VUmc.nl > > > > > > ********************************************************************** > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. If you have received this email in error please notify > the system manager. > > This footnote also confirms that this email message has been swept by > MIMEsweeper for the presence of computer viruses. > > www.mimesweeper.com > ********************************************************************** ------_=_NextPart_001_01C1DC89.F9C03C80 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: under dose

    Hi   I = have found with the three 21ex machines, if I tune in the morning = before they start treating I have problems,this was also true with the = old 1800. I have learned to tune only later on in the day. As Dave said = your problems may be related to voltage or some other changes. =

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Dave Pinchin = [SMTP:Dave.Pinchin@cdhb.govt.nz]
      Sent:   Thursday, April 04, 2002 3:47 PM
      To:     linac-eng@plato.aristotle.net
      Subject:       = Re: under dose

      G'day,
      We have had a similar situation here = for 10+years (2100C #40). We have learned to live with it.

      The first thing that you need to do is = work out WHY your machine is suffering from 'morning sickness'. There = are a myriad different reasons.

      Take a print of the meters screen = using communications mode event logger and compare these with the same = energy in service mode. Take special note of AFC, GUNI, RFDriver, PFNV = and HVPSI.

      You can also check the various = waveforms (cold machine vs hot machine) using a storage scope.
               &nb= sp;           &nb= sp;           &nb= sp; 
      When you know WHY you may be able to = work out a solution.

      Let the list know progress.
      :D


      >>> "Geest, F.G.M. = de" <fgm.geest@vumc.nl> 5/04/02 00:33:34 >>>
      Hallo,
      When we start in the morning we have = under dose for all our electron
      energy's (6,9 12 16 and 20) on our CL = 2300. After half an hour all the
      electron energy's are working = correct. Suggestions?




      FGM de Geest
      E-mail fgm.geest@VUmc.nl





      *********************************************************= *************
      This email and any files transmitted = with it are confidential and
      intended solely for the use of the = individual or entity to whom they
      are addressed. If you have received = this email in error please notify
      the system manager.

      This footnote also confirms that this = email message has been swept by
      MIMEsweeper for the presence of = computer viruses.

      www.mimesweeper.com
      **************************************= ********************************

    ------_=_NextPart_001_01C1DC89.F9C03C80-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 16:18:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tUXq-0007Lj-00; Fri, 05 Apr 2002 16:18:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 040671112F1; Fri, 5 Apr 2002 16:20:58 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA21287 for linac-eng-list; Fri, 5 Apr 2002 07:54:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA21282 for ; Fri, 5 Apr 2002 07:54:11 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g35DrcD12623; Fri, 5 Apr 2002 08:53:38 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256B92.004B160A ; Fri, 5 Apr 2002 08:40:08 -0500 X-Lotus-FromDomain: LRCC To: "Williams, Rod" Cc: linac-eng@plato.aristotle.net Message-ID: <85256B92.004B1410.00@mail.lrcc.on.ca> Date: Fri, 5 Apr 2002 08:40:02 -0500 Subject: RE: under dose Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Williams, Rod" Cc: linac-eng@plato.aristotle.net Date: Fri, 5 Apr 2002 08:40:02 -0500 Subject: RE: under dose Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk It can be anything from an old/weak klystron to a bad solder connection somewhere. Morning sickness on a klystron usually shows up as a slow start up on your 20e and 18x modes since they need the most RF power. Have you measured your klystron filament lately? There was also some discussion on the list a while back about some contraption that Varian had installed in the pulse tank and it was prone to failure. I don't recall the specifics of what kind of problems it caused. I will have to dig through my old e-mails to find it. A bad solder joint on a board in your Modulator could cause this kind of grief, or something in the gun deck. The short answer is it could be just about anything, so you'll have to get your scope out and your data book and hopefully not your cheque book! Happy hunting Randy Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 19:51:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tXrj-0008QV-00; Fri, 05 Apr 2002 19:51:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CDCE71112F2; Fri, 5 Apr 2002 19:53:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA11100 for linac-eng-list; Fri, 5 Apr 2002 11:13:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA11092 for ; Fri, 5 Apr 2002 11:12:57 -0600 (CST) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Fri, 5 Apr 2002 13:12:22 -0400 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Fri, 05 Apr 2002 13:10:47 -0400 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Fri, 05 Apr 2002 13:10:21 -0400 From: "Ward Dixon" To: Subject: Treatment Room Cameras. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA11093 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 05 Apr 2002 13:10:21 -0400 From: "Ward Dixon" To: Subject: Treatment Room Cameras. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA11093 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I am having trouble getting much life out of my CCD color cameras that are in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD chip and I get colored stars all over the picture. Picture quality deteriorates daily. I have had a shielded box made to try to reduce the radiation reaching the camera and this did not help. I am wondering if anyone has found a camera that is not damaged by the radiation or if someone has found a good setup in which they get a much longer life out of their camera. Any suggestions would be appreciated. Thanks, Ward Dixon 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 19:51:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tXrj-0008QW-00; Fri, 05 Apr 2002 19:51:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EAABD1112F3; Fri, 5 Apr 2002 19:53:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA11400 for linac-eng-list; Fri, 5 Apr 2002 11:18:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA11390 for ; Fri, 5 Apr 2002 11:18:15 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g35HICeu209372 for ; Fri, 5 Apr 2002 12:18:12 -0500 Message-ID: <3CADDAC0.F6647A02@hsc.vcu.edu> Date: Fri, 05 Apr 2002 12:11:28 -0500 From: "Christopher L. Bartee" X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: RT250 Content-Type: multipart/mixed; boundary="------------BF4A071348B6DB9FBD2CBC58" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 05 Apr 2002 12:11:28 -0500 From: "Christopher L. Bartee" X-Accept-Language: en To: "linac-eng@plato.aristotle.net" Subject: RT250 Content-Type: multipart/mixed; boundary="------------BF4A071348B6DB9FBD2CBC58" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------BF4A071348B6DB9FBD2CBC58 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Does anyone know whether Philips used PCB contaminated transformer oil in their ortho units and what years did the US require testing for PCB's? I know Varian required us to test older units when I was employed by them. Did Philips do the same? Any info greatly apprieciated Thanks, Chris Bartee --------------BF4A071348B6DB9FBD2CBC58 Content-Type: text/x-vcard; charset=us-ascii; name="clbartee.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Christopher L. Bartee Content-Disposition: attachment; filename="clbartee.vcf" begin:vcard n:Bartee;Christopher tel;work:804-628-0977 x-mozilla-html:FALSE org:Virginia Commonwealth University;Department of Radiation Oncology version:2.1 email;internet:Clbartee@hsc.vcu.edu title:Research Associate adr;quoted-printable:;;Medical College of Virginia=0D=0A401 College St;Richmond ;Virginia;23298-0058; fn:Christopher Bartee end:vcard --------------BF4A071348B6DB9FBD2CBC58-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 19:54:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tXv3-0008RD-00; Fri, 05 Apr 2002 19:54:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7B5B21112F2; Fri, 5 Apr 2002 19:57:08 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA11714 for linac-eng-list; Fri, 5 Apr 2002 11:23:11 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA11710 for ; Fri, 5 Apr 2002 11:23:10 -0600 (CST) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Fri, 5 Apr 2002 13:22:39 -0400 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Fri, 05 Apr 2002 13:21:03 -0400 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Fri, 05 Apr 2002 13:20:36 -0400 From: "Ward Dixon" To: Subject: Merge Box. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA11711 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 05 Apr 2002 13:20:36 -0400 From: "Ward Dixon" To: Subject: Merge Box. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA11711 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We had a Toshiba CT Scanner with a Merge box connected to it to transfer Dicom compatible information to our Cad Plan Planning system. The hospital replaced the CT and we are left with the Merge box. Is anyone out there interested in it? Ward Dixon 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 20:48:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tYlb-00006c-00; Fri, 05 Apr 2002 20:48:55 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A72A21112F1; Fri, 5 Apr 2002 20:51:26 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA03325 for linac-eng-list; Fri, 5 Apr 2002 12:27:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from radoncnt1.fccc.edu (radoncnt1.fccc.edu [131.249.10.49]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA03273 for ; Fri, 5 Apr 2002 12:27:10 -0600 (CST) Received: by radoncnt1.fccc.edu with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Apr 2002 13:26:09 -0500 Message-ID: From: "Liounis, Dave" To: "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 13:26:09 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Liounis, Dave" To: "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 13:26:09 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Ward: We also have seen spots on the image. From what I understand its being caused by neutrons. So unless you use a boron polyethylene material to shield the camera. The only option I found is to replace the cameras when this happens or replace with black & white cameras with a vidicon tube. David Liounis Fox Chase Cancer Center Department of Radiation Oncology Engineering 215-728-2997 D_LIOUNIS@FCCC.EDU -----Original Message----- From: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] Sent: Friday, April 05, 2002 12:10 PM To: Linac-eng@plato.aristotle.net Subject: Treatment Room Cameras. I am having trouble getting much life out of my CCD color cameras that are in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD chip and I get colored stars all over the picture. Picture quality deteriorates daily. I have had a shielded box made to try to reduce the radiation reaching the camera and this did not help. I am wondering if anyone has found a camera that is not damaged by the radiation or if someone has found a good setup in which they get a much longer life out of their camera. Any suggestions would be appreciated. Thanks, Ward Dixon 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 20:50:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tYnP-00006s-00; Fri, 05 Apr 2002 20:50:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 03D581112F1; Fri, 5 Apr 2002 20:53:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA05493 for linac-eng-list; Fri, 5 Apr 2002 12:32:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA05465 for ; Fri, 5 Apr 2002 12:32:39 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Apr 2002 10:32:08 -0800 Message-ID: <76E0B8A2AA4CEB49A2668206FA32EE6C9DD23D@phsormsg01.phsor.org> From: "Kaufman, John" To: "'linac'" Date: Fri, 5 Apr 2002 10:31:02 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kaufman, John" To: "'linac'" Date: Fri, 5 Apr 2002 10:31:02 -0800 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have at least a solution to being able to see some indication that you are having hose or pump failure in your water system. The previous engineer in our facility installed a standard 9.5 inch filter to the machine water system. We have a clear plastic canister fitted to that with a 1 or a 5 micron filter installed. If you check this once a week you will see a gradual color change. If you see a drastic color change over a weeks time, this is a pretty good indication that you have hose or pump problems. This at least gives you a heads up before catastrophic down time occurs. 2100C, 2300C, 600C all with 120 MLC's John B Kaufman Senior Biomedical Technician Providence Portland Medical Center 503-215-5415 503-215-6397 end **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 21:18:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZEB-00009i-00; Fri, 05 Apr 2002 21:18:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8DE491112F1; Fri, 5 Apr 2002 21:20:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA14065 for linac-eng-list; Fri, 5 Apr 2002 12:57:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.radonc.musc.edu (xchange.RadOnc.MUSC.EDU [128.23.55.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA14061 for ; Fri, 5 Apr 2002 12:57:37 -0600 (CST) Received: by xchange.RadOnc.MUSC.EDU with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Apr 2002 13:56:57 -0500 Message-ID: <0758E63D5DEC3B458FF43D068F1CC736018805@xchange.RadOnc.MUSC.EDU> From: "Nelson, Steve" To: "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 13:56:53 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson, Steve" To: "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 13:56:53 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Ward, Is it shielded for neutrons? We have color in our 21EX room which have been in the room for almost a year, and have not observed any pixel damage on either the fixed camera or the PTZ (pan, tilt, and zoom) unit. The thing is that we have 10Mv for our high photon energy because of room shielding constraints and there are essentially no neutrons. If your box is shielded with lead, it may be doing more harm than good. Try polyethylene or wood with a Plexiglas window. Check with a physicist if you have time for an hour lecture on neutron shielding theory. regards, Stephen Stephen J. Nelson MSEE Instructor Department of Radiation Oncology Medical University of SC 171 Ashley Ave. Charleston, SC 29425 843-792-3271 -----Original Message----- From: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] Sent: Friday, April 05, 2002 12:10 PM To: Linac-eng@plato.aristotle.net Subject: Treatment Room Cameras. I am having trouble getting much life out of my CCD color cameras that are in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD chip and I get colored stars all over the picture. Picture quality deteriorates daily. I have had a shielded box made to try to reduce the radiation reaching the camera and this did not help. I am wondering if anyone has found a camera that is not damaged by the radiation or if someone has found a good setup in which they get a much longer life out of their camera. Any suggestions would be appreciated. Thanks, Ward Dixon 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 21:33:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZSo-0000BC-00; Fri, 05 Apr 2002 21:33:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 161A51112F1; Fri, 5 Apr 2002 21:36:05 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA15291 for linac-eng-list; Fri, 5 Apr 2002 13:14:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from radoncnt1.fccc.edu (radoncnt1.fccc.edu [131.249.10.49]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA15287 for ; Fri, 5 Apr 2002 13:14:24 -0600 (CST) Received: by radoncnt1.fccc.edu with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Apr 2002 14:13:29 -0500 Message-ID: From: "Liounis, Dave" To: "'Watters, Dan'" , "'linac-eng@plato.aristotle.net'" Subject: RE: LCD Monitor in Treatment Room Date: Fri, 5 Apr 2002 14:13:28 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Liounis, Dave" To: "'Watters, Dan'" , "'linac-eng@plato.aristotle.net'" Subject: RE: LCD Monitor in Treatment Room Date: Fri, 5 Apr 2002 14:13:28 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dan, We installed a 32" flat panel monitor in the room for a patient entertainment system and after 16 months the flat panel developed a crack on the panel and the monitor died. This monitor was mounted on the ceiling so it is unlikely any thing hit the monitor and the crack was on the inside. Before installing the monitor we checked with NEC to see if radiation would have any effect on the monitor and they answered it would have no effect. I have found that these cracks in the screen have also happened in non radiation environments. So to answer your question I can't say if the radiation causes this or this is something prone to happen to LCD monitors. If you have any questions you can call me on Monday. Dave Liounis Fox Chase Cancer Center Department of Radiation Oncology Engineering 215-728-2997 D_LIOUNIS@FCCC.EDU -----Original Message----- From: Watters, Dan [mailto:dwatters@umcaz.edu] Sent: Thursday, April 04, 2002 4:36 PM To: 'linac-eng@plato.aristotle.net' Subject: LCD Monitor in Treatment Room Hi All, We are going to remote our IMPAC information into the treatment room on our Elekta 6/15 MV machine. I've never put an LCD monitor into a treatment room so I am wondering what effect the radiation will have on it. We are planning on putting the monitor overhead at the foot end of the table. This is near our CCD camera for patient viewing. This camera now has some fairly significant radiation damage on it and I am wondering if the LCD panel would be subject to the same type of damage. Anyone out there have some experience with LCD flat panels in a treatment room? If so I would appreciate your comments. Thanks in advance, Dan Watters University Medical Center Tucson, Arizona > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 21:33:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZSp-0000BF-00; Fri, 05 Apr 2002 21:33:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9F0311112F1; Fri, 5 Apr 2002 21:36:06 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA15493 for linac-eng-list; Fri, 5 Apr 2002 13:17:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA15488 for ; Fri, 5 Apr 2002 13:17:16 -0600 (CST) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Fri, 5 Apr 2002 15:16:42 -0400 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Fri, 05 Apr 2002 15:15:05 -0400 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Fri, 05 Apr 2002 15:14:57 -0400 From: "Ward Dixon" To: Subject: CCD Camera. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA15489 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 05 Apr 2002 15:14:57 -0400 From: "Ward Dixon" To: Subject: CCD Camera. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA15489 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi all, I should have told everyone that the shielded box I had made for my CCD Camera is lined with Poly Burate that I got from the Chief Physicists. It had a 3" diameter, double pained, lead lined glass window, for the lense. Thanks for the info thus far. Any other suggestions are appreciated. Thanks, Ward Dixon. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 21:55:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZnq-0000DG-00; Fri, 05 Apr 2002 21:55:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1AA0B1112F1; Fri, 5 Apr 2002 21:57:49 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA17547 for linac-eng-list; Fri, 5 Apr 2002 13:32:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA17510 for ; Fri, 5 Apr 2002 13:32:34 -0600 (CST) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Fri, 5 Apr 2002 14:32:02 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA92@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: under dose Date: Fri, 5 Apr 2002 14:32:00 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: under dose Date: Fri, 5 Apr 2002 14:32:00 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk It helps to know how much a parameter has to change to cause the effect you are seeing. So, in addition to recording event log and service mode numbers (a must), vary the adjustments a little to see how much causes trouble. The PFN especially can be sensitive, probably .1. Note that the PFN reading may be false if the HV divider is going bad, as happened to me. For this reason, the best question is, what needs to be adjusted to bring it back? I strongly suggest you set up the afc using the starve tuning method (except 6x) so as to avoid confusion with PFN adjustments. Then you can recheck if the afc still is in the same place, independent of the PFN, when it is starve tuned again. PFN and gun I interact in xray, very little in higher e-. Assuming afc diff is still the same when starve tuned in 9e, does PFN or gun restore the dose rate? I would do a gun plot to see if the filament is set right. I had a defective gun, with an abnormal plot, that kept changing in the morning for two hours, instead of settling down in 5 minutes. Check pulse width and height, especially with portal vision. Just a few thoughts, from similar experiences, to keep the discussion rolling. Good threads lately on pumps, lasers, etc. Jerry > -----Original Message----- > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > Sent: Thursday, April 04, 2002 4:47 PM > To: linac-eng@plato.aristotle.net > Subject: Re: under dose > > G'day, > We have had a similar situation here for 10+years (2100C #40). We have learned > to live with it. > > The first thing that you need to do is work out WHY your machine is suffering > from 'morning sickness'. There are a myriad different reasons. > > Take a print of the meters screen using communications mode event logger and > compare these with the same energy in service mode. Take special note of AFC, > GUNI, RFDriver, PFNV and HVPSI. > > You can also check the various waveforms (cold machine vs hot machine) using a > storage scope. > > When you know WHY you may be able to work out a solution. > > Let the list know progress. > :D > > > >>> "Geest, F.G.M. de" 5/04/02 00:33:34 >>> > Hallo, > When we start in the morning we have under dose for all our electron > energy's (6,9 12 16 and 20) on our CL 2300. After half an hour all the > electron energy's are working correct. Suggestions? > > > > > FGM de Geest > E-mail fgm.geest@VUmc.nl > > > > > > ********************************************************************** > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. If you have received this email in error please notify > the system manager. > > This footnote also confirms that this email message has been swept by > MIMEsweeper for the presence of computer viruses. > > www.mimesweeper.com > ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 21:55:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZo1-0000DJ-00; Fri, 05 Apr 2002 21:55:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 851CE1112F1; Fri, 5 Apr 2002 21:58:00 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA18479 for linac-eng-list; Fri, 5 Apr 2002 13:37:00 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA18473 for ; Fri, 5 Apr 2002 13:36:53 -0600 (CST) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA20471; Fri, 5 Apr 2002 13:42:51 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3CADFCE5.EF25F789@scf.sk.ca> Date: Fri, 05 Apr 2002 13:37:09 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en Mime-Version: 1.0 To: Linac list Subject: RT250 Oil Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 05 Apr 2002 13:37:09 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Accept-Language: en To: Linac list Subject: RT250 Oil Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Chris Our RT250 was installed in 1984 with ESSO Voltesso 35 oil you can get the data sheet on the Esso web site. Hope this helps Robert Penley Senior Physics Technician Saskatoon, Sask. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 21:57:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZps-0000Db-00; Fri, 05 Apr 2002 21:57:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 092991112F1; Fri, 5 Apr 2002 21:59:55 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA18887 for linac-eng-list; Fri, 5 Apr 2002 13:39:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA18877 for ; Fri, 5 Apr 2002 13:39:27 -0600 (CST) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Fri, 5 Apr 2002 14:38:53 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA93@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 14:38:51 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 14:38:51 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk It would take a lot of lead. The problem is that the camera has to look straight at the isocenter. Anyone tried mirrors or light pipes? Still in the black and white age, no problems. Jerry > -----Original Message----- > From: Ward Dixon [SMTP:dixwa@reg2.health.nb.ca] > Sent: Friday, April 05, 2002 12:10 PM > To: Linac-eng@plato.aristotle.net > Subject: Treatment Room Cameras. > > I am having trouble getting much life out of my CCD color cameras that > are in my Varian 2100 c/d treatment room. The radiation keeps damaging the > CCD chip and I get colored stars all over the picture. Picture quality > deteriorates daily. I have had a shielded box made to try to reduce the > radiation reaching the camera and this did not help. > I am wondering if anyone has found a camera that is not damaged by the > radiation or if someone has found a good setup in which they get a much > longer life out of their camera. > Any suggestions would be appreciated. > Thanks, Ward Dixon 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 21:57:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZqI-0000Dg-00; Fri, 05 Apr 2002 21:57:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 95E1F1112F2; Fri, 5 Apr 2002 22:00:21 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA18991 for linac-eng-list; Fri, 5 Apr 2002 13:40:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA18983 for ; Fri, 5 Apr 2002 13:40:46 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Fri, 5 Apr 2002 14:40:16 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA94@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Christopher L. Bartee'" , linac-eng@plato.aristotle.net Subject: RE: RT250 Date: Fri, 5 Apr 2002 14:40:15 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Christopher L. Bartee'" , linac-eng@plato.aristotle.net Subject: RE: RT250 Date: Fri, 5 Apr 2002 14:40:15 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I asked Philips when I had an RT-250, they replied that no PCBs were in their machines. You should be able to get this info from them. > -----Original Message----- > From: Christopher L. Bartee [SMTP:clbartee@hsc.vcu.edu] > Sent: Friday, April 05, 2002 12:11 PM > To: linac-eng@plato.aristotle.net > Subject: RT250 > > Does anyone know whether Philips used PCB contaminated > transformer oil in their ortho units and what years did the US require > testing for PCB's? I know Varian required us to test older units when I > was employed by them. Did Philips do the same? > Any info greatly apprieciated > > Thanks, > > > Chris Bartee << File: Card for Christopher L. Bartee >> 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 05 22:00:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tZsY-0000E5-00; Fri, 05 Apr 2002 22:00:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 84BBA1112F1; Fri, 5 Apr 2002 22:02:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA19221 for linac-eng-list; Fri, 5 Apr 2002 13:42:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA19214 for ; Fri, 5 Apr 2002 13:42:27 -0600 (CST) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Fri, 5 Apr 2002 14:41:55 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA95@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Liounis, Dave'" , "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 14:41:54 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Liounis, Dave'" , "'Ward Dixon'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Fri, 5 Apr 2002 14:41:54 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is interesting. There are usually no neutrons below 10MV. Anyone have problems in color cameras below 10MV? > -----Original Message----- > From: Liounis, Dave [SMTP:D_Liounis@FCCC.EDU] > Sent: Friday, April 05, 2002 1:26 PM > To: 'Ward Dixon'; Linac-eng@plato.aristotle.net > Subject: RE: Treatment Room Cameras. > > Ward: > We also have seen spots on the image. From what I understand its being > caused by neutrons. So unless you use a boron polyethylene material to > shield the camera. The only option I found is to replace the cameras when > this happens or replace with black & white cameras with a vidicon tube. > David Liounis > Fox Chase Cancer Center > Department of Radiation Oncology > Engineering > 215-728-2997 > D_LIOUNIS@FCCC.EDU > > > -----Original Message----- > From: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] > Sent: Friday, April 05, 2002 12:10 PM > To: Linac-eng@plato.aristotle.net > Subject: Treatment Room Cameras. > > > I am having trouble getting much life out of my CCD color cameras that are > in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD > chip and I get colored stars all over the picture. Picture quality > deteriorates daily. I have had a shielded box made to try to reduce the > radiation reaching the camera and this did not help. > I am wondering if anyone has found a camera that is not damaged by the > radiation or if someone has found a good setup in which they get a much > longer life out of their camera. > Any suggestions would be appreciated. > Thanks, Ward Dixon 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 06 00:05:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16tbpX-0000O3-00; Sat, 06 Apr 2002 00:05:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 34ECC1112F1; Sat, 6 Apr 2002 00:07:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA26450 for linac-eng-list; Fri, 5 Apr 2002 15:39:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from larch.cc.uic.edu (larch.cc.uic.edu [128.248.155.164]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA26415 for ; Fri, 5 Apr 2002 15:39:25 -0600 (CST) Received: (qmail 6235 invoked from network); 5 Apr 2002 21:39:19 -0000 Received: from uicmc53.hospital.uic.edu (128.248.203.53) by larch.cc.uic.edu with SMTP; 5 Apr 2002 21:39:19 -0000 Received: by uicmc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id <2LQW3V4B>; Fri, 5 Apr 2002 15:40:55 -0600 Message-ID: <3150ED7739AFD1119105000629B0382F015C2E44@uicmc53.hospital.uic.edu> From: "Bisevac, Simeon" To: "'Randy.McVittie@lrcc.on.ca'" , "Williams, Rod" Cc: linac-eng@plato.aristotle.net Subject: RE: under dose Date: Fri, 5 Apr 2002 15:40:54 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bisevac, Simeon" To: "'Randy.McVittie@lrcc.on.ca'" , "Williams, Rod" Cc: linac-eng@plato.aristotle.net Subject: RE: under dose Date: Fri, 5 Apr 2002 15:40:54 -0600 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All; The contraption you are referring to Randy is a filter that Varian installed in the pulse tank to filter the 236VAC klystron filament voltage. We lost one on our 2100EX #1398. When it fails, it shorts the 236VAC and will generate a KFIL interlock. This happenend while the machine was still under warranty. Our Varian guys permanently removed it from the circuit. I don't remember having the morning sickness problem but the filter may be causing small flucuations in filament voltage but not enough to trip the KFIL interlock YET. Don't know how long Varian was installing these filters but it may be worth investigating. Another possible cause could be the power conditioner if you have one. We have the Online Power unit. Placing the unit in bypass mode solved a low dose rate problem for me on another occasion. The conditioner required some work. Simeon University of Illinois Chicago -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, April 05, 2002 7:40 AM To: Williams, Rod Cc: linac-eng@plato.aristotle.net Subject: RE: under dose It can be anything from an old/weak klystron to a bad solder connection somewhere. Morning sickness on a klystron usually shows up as a slow start up on your 20e and 18x modes since they need the most RF power. Have you measured your klystron filament lately? There was also some discussion on the list a while back about some contraption that Varian had installed in the pulse tank and it was prone to failure. I don't recall the specifics of what kind of problems it caused. I will have to dig through my old e-mails to find it. A bad solder joint on a board in your Modulator could cause this kind of grief, or something in the gun deck. The short answer is it could be just about anything, so you'll have to get your scope out and your data book and hopefully not your cheque book! Happy hunting Randy Randy McVittie London Regional Cancer Centre London, Ontario CANADA ***************************EMAIL DISCLAIMER*************************** This e-mail and any files transmitted with it may be confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient or the individual responsible for delivering the e-mail to the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is strictly prohibited. If you have received this e-mail in error, please delete it and notify the sender or contact Health Information Management 312.996.3941. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Apr 07 23:06:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uJs1-0005IR-00; Sun, 07 Apr 2002 23:06:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B2F5E1112F3; Mon, 8 Apr 2002 00:09:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA14324 for linac-eng-list; Sun, 7 Apr 2002 15:37:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.primex.co.uk (smtp.primex.co.uk [213.165.147.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA14267 for ; Sun, 7 Apr 2002 15:37:03 -0500 (CDT) Received: from oemcomputer (dialup88.primex.co.uk [195.157.34.88]) by smtp.primex.co.uk (8.11.6/8.11.6) with SMTP id g37KcNT00675; Sun, 7 Apr 2002 21:38:24 +0100 Message-ID: <00a901c1de74$b58bdfa0$58229dc3@oemcomputer> From: "Chris Usher" To: "Nelson, Steve" , "'Ward Dixon'" , References: <0758E63D5DEC3B458FF43D068F1CC736018805@xchange.RadOnc.MUSC.EDU> Subject: Re: Treatment Room Cameras. Date: Sun, 7 Apr 2002 21:35:33 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Usher" To: "Nelson, Steve" , "'Ward Dixon'" , Subject: Re: Treatment Room Cameras. Date: Sun, 7 Apr 2002 21:35:33 +0100 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have colour cameras in a15MV treatment room for almost 10 years without a problem. Isn't most of the interference due to the RF pulsing? CHris 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 01:47:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uMNK-0005Ts-00; Mon, 08 Apr 2002 01:47:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EF2D51112F3; Mon, 8 Apr 2002 02:49:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA06463 for linac-eng-list; Sun, 7 Apr 2002 18:26:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r04.mx.aol.com (imo-r04.mx.aol.com [152.163.225.100]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA06459 for ; Sun, 7 Apr 2002 18:26:53 -0500 (CDT) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-r04.mx.aol.com (mail_out_v32.5.) id y.19d.576007 (4592) for ; Sun, 7 Apr 2002 19:26:17 -0400 (EDT) Message-ID: <19d.576007.29e22f98@aol.com> Date: Sun, 7 Apr 2002 19:26:16 EDT Subject: Re: Water Pumps To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 120 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Sun, 7 Apr 2002 19:26:16 EDT Subject: Re: Water Pumps To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Everyone ... I have been reading the posts regarding the "pump" issue and would like to add my 2 cents. Not because everyone else has, but because I failed to note one essential bit of information. That is the pump ac voltage. The label on the pump motors indicate that the line voltage required is a nominal 230 VAC. If the supply voltage is too low this will result in early pump failures due to the increased in motor load current. Absent defective pumps or motors these pumps should last several years with the proper line voltage. Please keep in mind that they were designed to pump well water which is less than ideal. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 02:30:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uN3G-0005Wc-00; Mon, 08 Apr 2002 02:30:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CAD681112F4; Mon, 8 Apr 2002 03:32:53 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id TAA14719 for linac-eng-list; Sun, 7 Apr 2002 19:11:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA14708 for ; Sun, 7 Apr 2002 19:10:59 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id JAA04817 for ; Mon, 8 Apr 2002 09:40:24 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (firewall-user@adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id JAA04746 for ; Mon, 8 Apr 2002 09:40:21 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id JAA15333 for ; Mon, 8 Apr 2002 09:40:20 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma013043; Mon, 8 Apr 02 09:36:31 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id JAA11351 for ; Mon, 8 Apr 2002 09:36:30 +0930 (CST) Message-Id: <200204080006.JAA11351@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 8 Apr 02 09:36:30 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 8 Apr 02 09:36:11 +0930 From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Mon, 8 Apr 2002 09:34:38 +0930 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: RE: under dose In-reply-to: <7A3389A8D723D511B2260008C7B2BF390D5E7B@wmhmail.phci.org> X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Mon, 8 Apr 2002 09:34:38 +0930 Content-type: text/plain; charset=US-ASCII Subject: RE: under dose In-reply-to: <7A3389A8D723D511B2260008C7B2BF390D5E7B@wmhmail.phci.org> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi everybody, We have been experiencing a similar problem on our Mevatron KD-2 for years. The machine is producing lower output in the morning or even sometimes after a lunch break. After running the machine for a few minutes the normal operation restores. I tried to track this problem down 3 years ago and noticed that in "cold" state the klystron produces a higher output (i.e. Pulse current is about 2-3% higher) causing an energy to be "overpeaked". Therefore to tune the machine I had to reduce PFN and later, when klystron "warms up", increase it back. I was not not convinced whether it was due to klystron itself or something else. Recently the concerns about this problem have been risen again and we noticed some instability in the RF driver output. But we do not gather enough statistics to say if this was the reason for output instability. I am going to conduct further investigation and will advise the list if I have any positive outcome. In the meantime those who has this problem on Varian machines, would you please tell me if your klystrons are working in linear or saturated mode. Regards, From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: RE: under dose Date sent: Fri, 5 Apr 2002 04:09:30 -0600 > Hi I have found with the three 21ex machines, if I tune in the morning > before they start treating I have problems,this was also true with the old > 1800. I have learned to tune only later on in the day. As Dave said your > problems may be related to voltage or some other changes. > > Rod.Williams@phci.org > WAUKESHA MEMORIAL HOSPITAL > 262-928-4734 > > > > -----Original Message----- > > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > > Sent: Thursday, April 04, 2002 3:47 PM > > To: linac-eng@plato.aristotle.net > > Subject: Re: under dose > > > > G'day, > > We have had a similar situation here for 10+years (2100C #40). We have > > learned to live with it. > > > > The first thing that you need to do is work out WHY your machine is > > suffering from 'morning sickness'. There are a myriad different reasons. > > > > Take a print of the meters screen using communications mode event logger > > and compare these with the same energy in service mode. Take special note > > of AFC, GUNI, RFDriver, PFNV and HVPSI. > > > > You can also check the various waveforms (cold machine vs hot machine) > > using a storage scope. > > > > When you know WHY you may be able to work out a solution. > > > > Let the list know progress. > > :D > > > > > > >>> "Geest, F.G.M. de" 5/04/02 00:33:34 >>> > > Hallo, > > When we start in the morning we have under dose for all our electron > > energy's (6,9 12 16 and 20) on our CL 2300. After half an hour all the > > electron energy's are working correct. Suggestions? > > > > > > > > > > FGM de Geest > > E-mail fgm.geest@VUmc.nl > > > > > > > > > > > > ********************************************************************** > > This email and any files transmitted with it are confidential and > > intended solely for the use of the individual or entity to whom they > > are addressed. If you have received this email in error please notify > > the system manager. > > > > This footnote also confirms that this email message has been swept by > > MIMEsweeper for the presence of computer viruses. > > > > www.mimesweeper.com > > ********************************************************************** > Andrew Frolov Manager, Radiation Engineering Medical Physics Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 03:01:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uNXC-0005YY-00; Mon, 08 Apr 2002 03:01:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 25C2B1112F3; Mon, 8 Apr 2002 04:03:49 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA20417 for linac-eng-list; Sun, 7 Apr 2002 19:43:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA20396 for ; Sun, 7 Apr 2002 19:43:44 -0500 (CDT) Received: from Mailsweeper2.chhlth.govt.nz (mailsweeper2.chhlth.govt.nz [159.117.18.162]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id MAA10781 for ; Mon, 8 Apr 2002 12:30:41 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper2.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Mon, 8 Apr 2002 12:47:40 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 08 Apr 2002 12:42:50 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 08 Apr 2002 12:42:41 +1200 From: "Dave Pinchin" To: Subject: RE: Treatment Room Cameras. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA20414 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 08 Apr 2002 12:42:41 +1200 From: "Dave Pinchin" To: Subject: RE: Treatment Room Cameras. Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA20414 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, We have 'stars' on one CCD camera in a 600c room. So I'd question the neutrons carefully. :D >>> "Liounis, Dave" 6/04/02 06:26:09 >>> Ward: We also have seen spots on the image. From what I understand its being caused by neutrons. So unless you use a boron polyethylene material to shield the camera. The only option I found is to replace the cameras when this happens or replace with black & white cameras with a vidicon tube. David Liounis Fox Chase Cancer Center Department of Radiation Oncology Engineering 215-728-2997 D_LIOUNIS@FCCC.EDU -----Original Message----- From: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] Sent: Friday, April 05, 2002 12:10 PM To: Linac-eng@plato.aristotle.net Subject: Treatment Room Cameras. I am having trouble getting much life out of my CCD color cameras that are in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD chip and I get colored stars all over the picture. Picture quality deteriorates daily. I have had a shielded box made to try to reduce the radiation reaching the camera and this did not help. I am wondering if anyone has found a camera that is not damaged by the radiation or if someone has found a good setup in which they get a much longer life out of their camera. Any suggestions would be appreciated. Thanks, Ward Dixon ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 03:13:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uNiT-0005Za-00; Mon, 08 Apr 2002 03:13:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5B4F41112F3; Mon, 8 Apr 2002 04:15:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA23640 for linac-eng-list; Sun, 7 Apr 2002 19:57:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA23589 for ; Sun, 7 Apr 2002 19:57:11 -0500 (CDT) Received: from Mailsweeper2.chhlth.govt.nz (mailsweeper2.chhlth.govt.nz [159.117.18.162]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id MAA11682 for ; Mon, 8 Apr 2002 12:44:12 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper2.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Mon, 8 Apr 2002 13:01:11 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 08 Apr 2002 12:56:20 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 08 Apr 2002 12:56:17 +1200 From: "Dave Pinchin" To: Subject: RE: Treatment Room Cameras. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA23591 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 08 Apr 2002 12:56:17 +1200 From: "Dave Pinchin" To: Subject: RE: Treatment Room Cameras. Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA23591 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, Sorry for the second posting but I had a thought. (This happens so rarely that I want to share the moment with you all.) We have had colour CCD cameras in all our bunkers since 198n. We have had degredation of image due to spots but nothing too serious. We have had 2-3 CCD elements replaced so far. I note in Jerry's posting that the cameras are mounted to look straight at isocentre. Does this mean that they are mounted in the primary beam path??????? Ours are WELL out of the primary beam (about 30-45 deg off the sagital line). Any thoughts??? Dave. >>> "Maddox, Buford J" 6/04/02 07:38:51 >>> It would take a lot of lead. The problem is that the camera has to look straight at the isocenter. Anyone tried mirrors or light pipes? Still in the black and white age, no problems. Jerry > -----Original Message----- > From: Ward Dixon [SMTP:dixwa@reg2.health.nb.ca] > Sent: Friday, April 05, 2002 12:10 PM > To: Linac-eng@plato.aristotle.net > Subject: Treatment Room Cameras. > > I am having trouble getting much life out of my CCD color cameras that > are in my Varian 2100 c/d treatment room. The radiation keeps damaging the > CCD chip and I get colored stars all over the picture. Picture quality > deteriorates daily. I have had a shielded box made to try to reduce the > radiation reaching the camera and this did not help. > I am wondering if anyone has found a camera that is not damaged by the > radiation or if someone has found a good setup in which they get a much > longer life out of their camera. > Any suggestions would be appreciated. > Thanks, Ward Dixon ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 04:17:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uOiP-0005eO-00; Mon, 08 Apr 2002 04:17:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9A65B1112F3; Mon, 8 Apr 2002 05:19:28 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id UAA28029 for linac-eng-list; Sun, 7 Apr 2002 20:57:17 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id UAA28021 for ; Sun, 7 Apr 2002 20:57:15 -0500 (CDT) Received: (qmail 23573 invoked from network); 8 Apr 2002 01:47:52 -0000 Received: from unknown (HELO webmail06) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 8 Apr 2002 01:47:52 -0000 Message-ID: <7308966.1018230826428.JavaMail.root@webmail06> Date: Mon, 8 Apr 2002 09:53:46 +0800 (HKT) From: Jonathan Chan To: linac-eng@plato.aristotle.net Subject: RE: Green Diode Laser Life Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 8 Apr 2002 09:53:46 +0800 (HKT) From: Jonathan Chan To: linac-eng@plato.aristotle.net Subject: RE: Green Diode Laser Life Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We also have bad experience with the Scanditronix Emerald Green lasers. From time to time, the diode lasers fail. Can't identified if it is the diode p/s module or the diode bad. Comment? Too bad a product. Jonathan Chan -----Original Message----- From: "Twyman, Paul" Sent: Thu Apr 04 22:40:36 HKT 2002 To: "linac engineer (E-mail)" "'Liounis, Dave'" Cc: "linac engineer (E-mail)" "'Liounis, Dave'" Subject: RE: Green Diode Laser Life Hi Dave We also used the green scanditronix emerald laser and suffered 3 or 4 failures. I believe that there was a problem with the diodes. I thought that they had resolved this problem. I only specify the LAP lasers now as they have proved to be both reliable and stable. Paul T Medical Physics dept Box 152 Addenbrookes hospital Cambridge CB2 2QQ United Kingdom tel 01223 586782 fax 01223 257137 > ---------- > From: Liounis, Dave[SMTP:D_Liounis@FCCC.EDU] > Sent: 04 April 2002 14:27 > To: linac engineer (E-mail) > Subject: Green Diode Laser Life > > Hello: > > We have been having a lot of problems with our Scanditronix Emerald Green > lasers. We have only had them for two years and had to send back many of > the > lasers for repair. Not only is this expensive but the turn around time has > been excessive. I was wondering how the reliability of other green diode > lasers are? > > Dave Liounis > Fox Chase Cancer Center > Department of Radiation Oncology > Engineering > 215-728-2997 > D_LIOUNIS@FCCC.EDU > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 11:20:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uVJh-0007tT-00; Mon, 08 Apr 2002 11:20:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 07EFA1112F1; Mon, 8 Apr 2002 12:22:19 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA07561 for linac-eng-list; Mon, 8 Apr 2002 03:58:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA07557 for ; Mon, 8 Apr 2002 03:58:54 -0500 (CDT) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Mon, 8 Apr 2002 10:58:48 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Mon, 8 Apr 2002 10:58:47 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A6E9@exchange-5.orebroll.se> To: Linac-eng@plato.aristotle.net Subject: SV: Treatment Room Cameras. Date: Mon, 8 Apr 2002 10:58:46 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA07558 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: Linac-eng@plato.aristotle.net Subject: SV: Treatment Room Cameras. Date: Mon, 8 Apr 2002 10:58:46 +0200 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA07558 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk There are rad hardened cameras, MegaRad or some such (B/W by the way). I did look into it once but determined the cost very nearly outweighed the lifespan. We've since switched to B/W cameras as they are much less prone to radiation damage. The only way to really stop the neutrons is to shield the camera optics side with a water tank, (keep a few fish in it too :- ) Tel. -----Ursprungligt meddelande----- Från: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] Skickat: den 5 april 2002 19:10 Till: Linac-eng@plato.aristotle.net Ämne: Treatment Room Cameras. I am having trouble getting much life out of my CCD color cameras that are in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD chip and I get colored stars all over the picture. Picture quality deteriorates daily. I have had a shielded box made to try to reduce the radiation reaching the camera and this did not help. I am wondering if anyone has found a camera that is not damaged by the radiation or if someone has found a good setup in which they get a much longer life out of their camera. Any suggestions would be appreciated. Thanks, Ward Dixon 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 13:11:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uX38-0000ub-00; Mon, 08 Apr 2002 13:11:02 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 10EA41112F4; Mon, 8 Apr 2002 14:13:24 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA08913 for linac-eng-list; Mon, 8 Apr 2002 05:55:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA08909 for ; Mon, 8 Apr 2002 05:55:39 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g38At4129304 for ; Mon, 8 Apr 2002 05:55:04 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g38At4s29300 for ; Mon, 8 Apr 2002 05:55:04 -0500 (CDT) Received: through eSafe SMTP Relay 1016464309; Mon Apr 08 05:55:04 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Mon, 8 Apr 2002 05:55:04 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E7C@wmhmail.phci.org> From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: Varian 8503B deque tube Date: Mon, 8 Apr 2002 05:55:02 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEB.D5949590" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: Varian 8503B deque tube Date: Mon, 8 Apr 2002 05:55:02 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEB.D5949590" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DEEB.D5949590 Content-Type: text/plain Hi to all I have a 8503B EEV Tube that is brand new but it has been lying around for about 3 years, if anyone wants it, the first one to e-mail me I will ship it to. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 ------_=_NextPart_001_01C1DEEB.D5949590 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Varian 8503B deque tube

    Hi to all I have a 8503B EEV Tube that = is brand new but it has been lying around for about 3 years, if anyone = wants it, the first one to e-mail me I will ship it to.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


    ------_=_NextPart_001_01C1DEEB.D5949590-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 13:33:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uXOg-00015v-00; Mon, 08 Apr 2002 13:33:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CC5BC1112F4; Mon, 8 Apr 2002 14:35:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA09450 for linac-eng-list; Mon, 8 Apr 2002 06:18:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA09446 for ; Mon, 8 Apr 2002 06:18:03 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g38BHWZ15100 for ; Mon, 8 Apr 2002 06:17:32 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g38BHW815096 for ; Mon, 8 Apr 2002 06:17:32 -0500 (CDT) Received: through eSafe SMTP Relay 1016464309; Mon Apr 08 06:17:32 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Mon, 8 Apr 2002 06:17:32 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E7E@wmhmail.phci.org> From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: RE: under dose Date: Mon, 8 Apr 2002 06:17:20 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEE.F2EA0410" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: RE: under dose Date: Mon, 8 Apr 2002 06:17:20 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEE.F2EA0410" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DEEE.F2EA0410 Content-Type: text/plain I had two machines with shorted KLY filters, they caused immediate MOD faults, buy the time s/n 1630 came around they were pulled out of the machines. It was kind of tricky because if you would pull the primary coaxes out of the tank the modulator would fire up, acted like a shorted KLYSTRON. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Bisevac, Simeon [SMTP:SimeonB@uic.edu] > Sent: Friday, April 05, 2002 3:41 PM > To: 'Randy.McVittie@lrcc.on.ca'; Williams, Rod > Cc: linac-eng@plato.aristotle.net > Subject: RE: under dose > > Hi All; > > The contraption you are referring to Randy is a filter that > Varian installed in the pulse tank to filter the 236VAC klystron > filament voltage. We lost one on our 2100EX #1398. When it fails, it > shorts > the 236VAC and will generate a KFIL interlock. This happenend while the > machine was still under warranty. Our Varian guys permanently removed it > from the circuit. I don't remember having the morning sickness problem > but > the filter may be causing small flucuations in filament voltage but not > enough > to trip the KFIL interlock YET. Don't know how long Varian was installing > these > filters but it may be worth investigating. > Another possible cause could be the power conditioner if you have one. > We have the Online Power unit. Placing the unit in bypass mode solved a > low > dose > rate problem for me on another occasion. The conditioner required some > work. > > Simeon > University of Illinois > Chicago > > > -----Original Message----- > From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] > Sent: Friday, April 05, 2002 7:40 AM > To: Williams, Rod > Cc: linac-eng@plato.aristotle.net > Subject: RE: under dose > > > > > It can be anything from an old/weak klystron to a bad solder connection > somewhere. > > Morning sickness on a klystron usually shows up as a slow start up on your > 20e > and 18x modes since > they need the most RF power. Have you measured your klystron filament > lately? > There was also some discussion on the list a while back about some > contraption > that Varian had installed in > the pulse tank and it was prone to failure. I don't recall the specifics > of > what kind of problems it caused. I will > have to dig through my old e-mails to find it. > > A bad solder joint on a board in your Modulator could cause this kind of > grief, > or something in the gun deck. > > The short answer is it could be just about anything, so you'll have to get > your > scope out and your data book and > hopefully not your cheque book! > > Happy hunting > > > Randy > Randy McVittie > London Regional Cancer Centre > London, Ontario > CANADA > > ***************************EMAIL DISCLAIMER*************************** > This e-mail and any files transmitted with it may be confidential and are > intended solely for the use of the individual or entity to whom they are > addressed. If you are not the intended recipient or the individual > responsible for delivering the e-mail to the intended recipient, any > disclosure, copying, distribution or any action taken or omitted to be > taken > in reliance on it, is strictly prohibited. If you have received this > e-mail > in error, please delete it and notify the sender or contact Health > Information Management 312.996.3941. ------_=_NextPart_001_01C1DEEE.F2EA0410 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: under dose

    I had two machines = with shorted KLY filters, they caused immediate MOD faults, buy the = time s/n 1630 came around they were pulled out of the machines. It was = kind of tricky because if you would pull the primary coaxes out of the = tank the modulator would fire up, acted like a shorted = KLYSTRON.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Bisevac, Simeon [SMTP:SimeonB@uic.edu]
      Sent:   Friday, April 05, 2002 3:41 PM
      To:     'Randy.McVittie@lrcc.on.ca'; Williams, Rod
      Cc:     linac-eng@plato.aristotle.net
      Subject:       = RE: under dose

      Hi All;

      The contraption you are referring to = Randy is a filter that
      Varian installed in the pulse tank to = filter the 236VAC klystron
      filament voltage. We lost one on our = 2100EX #1398.  When it fails, it shorts
      the 236VAC and will generate a KFIL = interlock.  This happenend while the
      machine was still under = warranty.  Our Varian guys permanently removed it
      from the circuit.  I don't = remember having the morning sickness problem but
      the filter may be causing small = flucuations in filament voltage but not
      enough
      to trip the KFIL interlock YET.  = Don't know how long Varian was installing
      these
      filters but it may be worth = investigating. 
      Another possible cause could be the = power conditioner if you have one.
      We have the Online Power unit.  = Placing the unit in bypass mode solved a low
      dose
      rate problem for me on another = occasion.  The conditioner required some
      work. 

      Simeon
      University of Illinois
      Chicago


      -----Original Message-----
      From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.= ca]
      Sent: Friday, April 05, 2002 7:40 = AM
      To: Williams, Rod
      Cc: = linac-eng@plato.aristotle.net
      Subject: RE: under dose




      It can be anything from an old/weak = klystron to a bad solder connection
      somewhere.

      Morning sickness on a klystron usually = shows up as a slow start up on your
      20e
      and 18x modes since
      they need the most RF power.  = Have you measured your klystron filament
      lately?
      There was also some discussion on the = list a while back about some
      contraption
      that Varian had installed in
      the pulse tank and it was prone to = failure.  I don't recall the specifics of
      what kind of problems it = caused.  I will
      have to dig through my old e-mails to = find it.

      A bad solder joint on a board in your = Modulator could cause this kind of
      grief,
      or something in the gun deck.

      The short answer is it could be just = about anything, so you'll have to get
      your
      scope out and your data book = and
      hopefully  not your cheque = book!

      Happy hunting


      Randy
      Randy McVittie
      London Regional Cancer Centre
      London, Ontario
      CANADA

      ***************************EMAIL  = DISCLAIMER***************************
      This e-mail and any files transmitted = with it may be confidential and are
      intended solely for the use of the = individual or entity to whom they are
      addressed.  If you are not the = intended recipient or the individual
      responsible for delivering the e-mail = to the intended recipient, any
      disclosure, copying, distribution or = any action taken or omitted to be taken
      in reliance on it, is strictly = prohibited.  If you have received this e-mail
      in error, please delete it and notify = the sender or contact Health
      Information Management 312.996.3941. =

    ------_=_NextPart_001_01C1DEEE.F2EA0410-- 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 15:37:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uZKv-0002T7-00; Mon, 08 Apr 2002 15:37:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E220E1112FD; Mon, 8 Apr 2002 16:39:53 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA13733 for linac-eng-list; Mon, 8 Apr 2002 08:25:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imf04bis.bellsouth.net (mail004.mail.bellsouth.net [205.152.58.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA13729 for ; Mon, 8 Apr 2002 08:25:07 -0500 (CDT) Received: from nec ([65.80.0.180]) by imf04bis.bellsouth.net (InterMail vM.5.01.04.05 201-253-122-122-105-20011231) with SMTP id <20020408132559.HSYH1180.imf04bis.bellsouth.net@nec>; Mon, 8 Apr 2002 09:25:59 -0400 From: "Neil Johnston" To: "Jonathan Chan" , Subject: RE: Green Diode Laser Life Date: Mon, 8 Apr 2002 09:22:44 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="big5" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: <7308966.1018230826428.JavaMail.root@webmail06> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Neil Johnston" To: "Jonathan Chan" , Subject: RE: Green Diode Laser Life Date: Mon, 8 Apr 2002 09:22:44 -0400 Content-Type: text/plain; charset="big5" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal In-Reply-To: <7308966.1018230826428.JavaMail.root@webmail06> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All, Just a short message on the Green lasers. A little while back I did post an article on the generation of the green light. It is an complex procedure and does cause heat build up that ultimately will damage the solid state device. (These are not just a diode as with the red lasers.) You must have active cooling on green lasers, this includes proper ventilation, specially designed housing and thermostat controlled cooling devices - we use muffin fans and heat sinks on the solid state generator along with thermistor control to protect the laser. All that being said the life expectancy of the green laser is still reduced from that of the red. Red approx. 50,000 hours Green approx. 30,000 hours (remember that these solid state devices can be switched on and off at will as there is no warm-up required or drift) Hope this wasn't too much of a sales pitch. If anyone wants more info on green I can send that info on how they are generated. Regards Neil Johnston Ex Linac Engineer LAP Lasers On a side note I was sorry to see so many people asking to be removed - and lately I haven't been getting that junk mail. -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Jonathan Chan Sent: Sunday, April 07, 2002 9:54 PM To: linac-eng@plato.aristotle.net Subject: RE: Green Diode Laser Life We also have bad experience with the Scanditronix Emerald Green lasers. >From time to time, the diode lasers fail. Can't identified if it is the diode p/s module or the diode bad. Comment? Too bad a product. Jonathan Chan -----Original Message----- From: "Twyman, Paul" Sent: Thu Apr 04 22:40:36 HKT 2002 To: "linac engineer (E-mail)" "'Liounis, Dave'" Cc: "linac engineer (E-mail)" "'Liounis, Dave'" Subject: RE: Green Diode Laser Life Hi Dave We also used the green scanditronix emerald laser and suffered 3 or 4 failures. I believe that there was a problem with the diodes. I thought that they had resolved this problem. I only specify the LAP lasers now as they have proved to be both reliable and stable. Paul T Medical Physics dept Box 152 Addenbrookes hospital Cambridge CB2 2QQ United Kingdom tel 01223 586782 fax 01223 257137 > ---------- > From: Liounis, Dave[SMTP:D_Liounis@FCCC.EDU] > Sent: 04 April 2002 14:27 > To: linac engineer (E-mail) > Subject: Green Diode Laser Life > > Hello: > > We have been having a lot of problems with our Scanditronix Emerald Green > lasers. We have only had them for two years and had to send back many of > the > lasers for repair. Not only is this expensive but the turn around time has > been excessive. I was wondering how the reliability of other green diode > lasers are? > > Dave Liounis > Fox Chase Cancer Center > Department of Radiation Oncology > Engineering > 215-728-2997 > D_LIOUNIS@FCCC.EDU > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 08 15:40:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uZOE-0002XX-00; Mon, 08 Apr 2002 15:40:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 77EE31112FD; Mon, 8 Apr 2002 16:43:18 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA13616 for linac-eng-list; Mon, 8 Apr 2002 08:19:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwmail.harthosp.org (gwmail.harthosp.org [199.231.29.249]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA13608 for ; Mon, 8 Apr 2002 08:19:16 -0500 (CDT) Received: from HHCC-MTA by gwmail.harthosp.org with Novell_GroupWise; Mon, 08 Apr 2002 09:17:50 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Mon, 08 Apr 2002 09:17:44 -0400 From: "Robert Lindeyer" To: Subject: RE: Treatment Room Cameras. Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_134E936E.A2C3BDBE" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 08 Apr 2002 09:17:44 -0400 From: "Robert Lindeyer" To: Subject: RE: Treatment Room Cameras. Content-Type: multipart/mixed; boundary="=_134E936E.A2C3BDBE" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_134E936E.A2C3BDBE Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline WE have had some B?W cameras in our department last over 12 years without much degradation (few if any spots). The units are mounted 30 or so degrees off of the sagittal and about 8 ft above the floor. We do have some color units off campus mounted in similar fashion for over three years with little or no degradation of image. Robert Lindeyer Clinical Engineer Radiation Oncology Hartford Hospital rlindey@harthosp.org >>> "Dave Pinchin" 04/07/02 08:56PM >>> G'day, Sorry for the second posting but I had a thought. (This happens so rarely that I want to share the moment with you all.) We have had colour CCD cameras in all our bunkers since 198n. We have had degredation of image due to spots but nothing too serious. We have had 2-3 CCD elements replaced so far. I note in Jerry's posting that the cameras are mounted to look straight at isocentre. Does this mean that they are mounted in the primary beam path??????? Ours are WELL out of the primary beam (about 30-45 deg off the sagital line). Any thoughts??? Dave. >>> "Maddox, Buford J" 6/04/02 07:38:51 >>> It would take a lot of lead. The problem is that the camera has to look straight at the isocenter. Anyone tried mirrors or light pipes? Still in the black and white age, no problems. Jerry > -----Original Message----- > From: Ward Dixon [SMTP:dixwa@reg2.health.nb.ca] > Sent: Friday, April 05, 2002 12:10 PM > To: Linac-eng@plato.aristotle.net > Subject: Treatment Room Cameras. > > I am having trouble getting much life out of my CCD color cameras that > are in my Varian 2100 c/d treatment room. The radiation keeps damaging the > CCD chip and I get colored stars all over the picture. Picture quality > deteriorates daily. I have had a shielded box made to try to reduce the > radiation reaching the camera and this did not help. > I am wondering if anyone has found a camera that is not damaged by the > radiation or if someone has found a good setup in which they get a much > longer life out of their camera. > Any suggestions would be appreciated. > Thanks, Ward Dixon ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** --=_134E936E.A2C3BDBE Content-Type: text/plain Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Robert Lindeyer.vcf" BEGIN:VCARD VERSION:2.1 X-GWTYPE:USER FN:Lindeyer, Robert TEL;WORK:545-4346 ORG:;Medical Physics TEL;PREF;FAX:545-1500 EMAIL;WORK;PREF;NGW:Rlindey N:Lindeyer;Robert TITLE:Engineer X-GWUSERID:Rlindey END:VCARD --=_134E936E.A2C3BDBE-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 00:46:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uhu2-00055o-00; Tue, 09 Apr 2002 00:46:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4AF821112F1; Tue, 9 Apr 2002 01:48:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA07282 for linac-eng-list; Mon, 8 Apr 2002 17:04:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id RAA07275 for ; Mon, 8 Apr 2002 17:04:48 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 8 Apr 2002 21:57:15 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Mon, 8 Apr 2002 15:04:15 -0700 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Mon, 8 Apr 2002 15:04:15 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Mon, 8 Apr 2002 15:04:15 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi there... If anyone has a formal (or otherwise) job description for a Radiation Therapy Service Engineer I would appreciate a copy or just a line by line of the requirements. Regards, Tom Bush 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 08:43:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16upM2-0006VC-00; Tue, 09 Apr 2002 08:43:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8A3881112F5; Tue, 9 Apr 2002 09:46:04 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id BAA26084 for linac-eng-list; Tue, 9 Apr 2002 01:28:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id BAA26080 for ; Tue, 9 Apr 2002 01:28:26 -0500 (CDT) Received: (qmail 27094 invoked from network); 9 Apr 2002 06:18:52 -0000 Received: from unknown (HELO webmail06) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 9 Apr 2002 06:18:52 -0000 Message-ID: <1714094.1018333491898.JavaMail.root@webmail06> Date: Tue, 9 Apr 2002 14:24:51 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Morning checkout Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 9 Apr 2002 14:24:51 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Morning checkout Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have just another Varian's 6EX (with PV and 120 leaves MLC) put into service. Would like to know what other parameters you would like to take or measure prior to releasing the machine for daily treatment? Currently we just run the morning checkout, and check the dose constancy. Rgds, Jonathan Chan 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 06:39:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16unPQ-0005pF-00; Tue, 09 Apr 2002 06:39:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 35F171112F3; Tue, 9 Apr 2002 07:41:27 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA23155 for linac-eng-list; Mon, 8 Apr 2002 23:21:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d10.mx.aol.com (imo-d10.mx.aol.com [205.188.157.42]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA23151 for ; Mon, 8 Apr 2002 23:21:07 -0500 (CDT) From: RolandTedr@aol.com Received: from RolandTedr@aol.com by imo-d10.mx.aol.com (mail_out_v32.5.) id x.d.24f99dc7 (1322); Tue, 9 Apr 2002 00:20:23 -0400 (EDT) Message-ID: Date: Tue, 9 Apr 2002 00:20:22 EDT Subject: Re: Green Diode Laser Life To: sky8808@hutchcity.com, linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_d.24f99dc7.29e3c606_boundary" X-Mailer: AOL 6.0 for Windows XP US sub 50 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: RolandTedr@aol.com Date: Tue, 9 Apr 2002 00:20:22 EDT Subject: Re: Green Diode Laser Life To: sky8808@hutchcity.com, linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_d.24f99dc7.29e3c606_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_d.24f99dc7.29e3c606_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I went through a rash of bad gammex lasers once, kept sending them back, they kept failing. Turned out we weren't returning the ac adapters which turned out to be the problem. Roland --part1_d.24f99dc7.29e3c606_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit I went through a rash of bad gammex lasers once, kept sending them back,
    they kept failing.  Turned out we weren't returning the ac adapters which turned
    out to be the problem.

    Roland
    --part1_d.24f99dc7.29e3c606_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 14:44:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uuyq-0002BB-00; Tue, 09 Apr 2002 14:44:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7D4B81112F3; Tue, 9 Apr 2002 15:46:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA04140 for linac-eng-list; Tue, 9 Apr 2002 07:28:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA04136 for ; Tue, 9 Apr 2002 07:28:28 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Tue, 9 Apr 2002 09:27:54 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Tue, 09 Apr 2002 09:26:19 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 09 Apr 2002 09:25:45 -0300 From: "Ward Dixon" To: Subject: CCD Cameras. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA04137 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Apr 2002 09:25:45 -0300 From: "Ward Dixon" To: Subject: CCD Cameras. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA04137 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to all who gave input on my CCD Camera situation. I am now wondering if anyone out there has recently purchased a tube type camera. My local distributer is looking but has told me that he doesn't think that tube type, CCTV cameras, are made anymore. I would like to find one with color, for the Therapist prefer them to black and white cameras. I have done some surfing but have come up short handed thus far. Any input would be appreciated. Thanks Ward DIxon. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 15:51:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16uw1t-0002uS-00; Tue, 09 Apr 2002 15:51:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AB34A1112F5; Tue, 9 Apr 2002 16:53:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA06834 for linac-eng-list; Tue, 9 Apr 2002 08:23:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA06830 for ; Tue, 9 Apr 2002 08:23:17 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Tue, 9 Apr 2002 10:22:45 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Tue, 09 Apr 2002 10:21:09 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 09 Apr 2002 10:20:40 -0300 From: "Ward Dixon" To: Subject: Varis and TDS. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA06831 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Apr 2002 10:20:40 -0300 From: "Ward Dixon" To: Subject: Varis and TDS. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA06831 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello All. We have Varis R & V in our Dept. The main system used in the hospital for patient registration and related information is called TDS or E7000 (new Version). As all Varis users would know, it runs on Windows NT4. To my knowledge TDS does not. Well, as our department expanded and more people got computers, everyone wanted access to more applications. Everyone was using Varis in one way or another. Some needed access to TDS also. The IT Dept got involved and was able to get them to work together. (Don't ask me how). Well they worked fine for a while, but now there are intermittent problems on various computers trying to run these two applications at the same time. Sometimes they will conflict. One will open and the other wont. Or they will both be open and the user will get an SNA error message, needing to reboot the computer. Sometimes everything will work fine. I don't foresee getting this resolved with the IT Department anytime soon, so I am looking for input as to get this problem solved. I am told that the TDS system is very large and used all over North America and possibly the world. If anyone has experience with TDS, input, or can direct me to someone who can help, I would greatly appreciate it. Thank you in advance. Ward Dixon Therapeutic Physics Saint John Regional Hospital Saint John, NB. Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 20:59:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16v0qC-0004VM-00; Tue, 09 Apr 2002 20:59:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A04521112F3; Tue, 9 Apr 2002 22:01:56 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA14560 for linac-eng-list; Tue, 9 Apr 2002 13:12:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA14536 for ; Tue, 9 Apr 2002 13:12:16 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Tue, 9 Apr 2002 15:11:44 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Tue, 09 Apr 2002 15:10:09 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 09 Apr 2002 15:09:39 -0300 From: "Ward Dixon" To: Subject: VARIS vs TDS. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA14540 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Apr 2002 15:09:39 -0300 From: "Ward Dixon" To: Subject: VARIS vs TDS. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA14540 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi all. I posted a question earlier today about VARIS and TDS running on the same Win NT4 Workstation. I need to clarify something. The issue is simply the two apps running on the same computer. I don't know how the IT Dept got the TDS to run on Win NT4 platform, for my understanding is that it was not designed to do so. However, since they got this to work, it works with intermittent conflicts between the two apps. WHEN the two are loaded at the same time so as the user can toggle between the two systems. I was just told that TDS is almost nonexistent in North America but is used over seas. Again, if anyone has experience with these two products, I would appreciate your input. Thanks, Ward. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 21:17:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16v17s-0004XI-00; Tue, 09 Apr 2002 21:17:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C7B591112F3; Tue, 9 Apr 2002 22:20:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA22438 for linac-eng-list; Tue, 9 Apr 2002 13:48:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA22434 for ; Tue, 9 Apr 2002 13:48:54 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 9 Apr 2002 14:48:22 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA97@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:48:19 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:48:19 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Our cameras are not in the beam path, but do have an unshielded view of the head and isocenter. Ours are on the wall at the end of the couch, about 15 deg off couch centerline, 7-8 ft high. Interesting discussion. Don't think I will rush to get color cameras. Jerry > -----Original Message----- > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > Sent: Sunday, April 07, 2002 8:56 PM > To: linac-eng@plato.aristotle.net > Subject: RE: Treatment Room Cameras. > > G'day, > Sorry for the second posting but I had a thought. (This happens so rarely that > I want to share the moment with you all.) > We have had colour CCD cameras in all our bunkers since 198n. We have had > degredation of image due to spots but nothing too serious. We have had 2-3 CCD > elements replaced so far. > I note in Jerry's posting that the cameras are mounted to look straight at > isocentre. Does this mean that they are mounted in the primary beam > path??????? > > Ours are WELL out of the primary beam (about 30-45 deg off the sagital line). > > Any thoughts??? > > Dave. > > >>> "Maddox, Buford J" 6/04/02 07:38:51 >>> > It would take a lot of lead. The problem is that the camera has to look > straight at the isocenter. Anyone tried mirrors or light pipes? Still in > the black and white age, no problems. > Jerry > > > -----Original Message----- > > From: Ward Dixon [SMTP:dixwa@reg2.health.nb.ca] > > Sent: Friday, April 05, 2002 12:10 PM > > To: Linac-eng@plato.aristotle.net > > Subject: Treatment Room Cameras. > > > > I am having trouble getting much life out of my CCD color cameras that > > are in my Varian 2100 c/d treatment room. The radiation keeps damaging the > > CCD chip and I get colored stars all over the picture. Picture quality > > deteriorates daily. I have had a shielded box made to try to reduce the > > radiation reaching the camera and this did not help. > > I am wondering if anyone has found a camera that is not damaged by the > > radiation or if someone has found a good setup in which they get a much > > longer life out of their camera. > > Any suggestions would be appreciated. > > Thanks, Ward Dixon > > > > ********************************************************************** > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. If you have received this email in error please notify > the system manager. > > This footnote also confirms that this email message has been swept by > MIMEsweeper for the presence of computer viruses. > > www.mimesweeper.com > ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 21:17:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16v17s-0004XK-00; Tue, 09 Apr 2002 21:17:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3A6B81112F5; Tue, 9 Apr 2002 22:20:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA23067 for linac-eng-list; Tue, 9 Apr 2002 13:58:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA23058 for ; Tue, 9 Apr 2002 13:58:42 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id <2TSSZ690>; Tue, 9 Apr 2002 14:58:10 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA99@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Williams, Rod'" , "'Linac-Eng@plato.aristotle.net'" Subject: RE: Varian 8503B deque tube Date: Tue, 9 Apr 2002 14:58:07 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Williams, Rod'" , "'Linac-Eng@plato.aristotle.net'" Subject: RE: Varian 8503B deque tube Date: Tue, 9 Apr 2002 14:58:07 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk That tube should be fine. I have used many older than that. > -----Original Message----- > From: Williams, Rod [SMTP:rod.williams@phci.org] > Sent: Monday, April 08, 2002 6:55 AM > To: 'Linac-Eng@plato.aristotle.net' > Subject: Varian 8503B deque tube > > Hi to all I have a 8503B EEV Tube that is brand new but it has been lying > around for about 3 years, if anyone wants it, the first one to e-mail me I > will ship it to. > > Rod.Williams@phci.org > WAUKESHA MEMORIAL HOSPITAL > 262-928-4734 > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 21:17:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16v17s-0004XN-00; Tue, 09 Apr 2002 21:17:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0731F1112F4; Tue, 9 Apr 2002 22:20:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA23005 for linac-eng-list; Tue, 9 Apr 2002 13:57:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA23000 for ; Tue, 9 Apr 2002 13:57:48 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 9 Apr 2002 14:57:08 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA98@phsexch6.partners.org> From: "Maddox, Buford J" To: "'terry.kearey@orebroll.se'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:56:58 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA23001 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'terry.kearey@orebroll.se'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:56:58 -0400 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA23001 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk If you have neutrons, your physicist will have likely specified some borated polyethylene shielding for doors or ducts, you might be able to get some leftovers. Need to surround the camera, as there is a uniform low energy flux in the room, if you have any. The high E photons can also cause damage. I am working on a neutron sink, only $ 1million. Also bridges for sale. Jerry > -----Original Message----- > From: terry.kearey@orebroll.se [SMTP:terry.kearey@orebroll.se] > Sent: Monday, April 08, 2002 4:59 AM > To: Linac-eng@plato.aristotle.net > Subject: SV: Treatment Room Cameras. > > There are rad hardened cameras, MegaRad or some such (B/W by the way). I did > look into it once but determined the cost very nearly outweighed the > lifespan. We've since switched to B/W cameras as they are much less prone to > radiation damage. > The only way to really stop the neutrons is to shield the camera optics side > with a water tank, (keep a few fish in it too :- ) > > Tel. > > > -----Ursprungligt meddelande----- > Från: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] > Skickat: den 5 april 2002 19:10 > Till: Linac-eng@plato.aristotle.net > Ämne: Treatment Room Cameras. > > > I am having trouble getting much life out of my CCD color cameras that are > in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD > chip and I get colored stars all over the picture. Picture quality > deteriorates daily. I have had a shielded box made to try to reduce the > radiation reaching the camera and this did not help. > I am wondering if anyone has found a camera that is not damaged by the > radiation or if someone has found a good setup in which they get a much > longer life out of their camera. > Any suggestions would be appreciated. > Thanks, Ward Dixon 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 21:24:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16v1EO-0004Y2-00; Tue, 09 Apr 2002 21:24:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 732A01112F3; Tue, 9 Apr 2002 22:26:53 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA23305 for linac-eng-list; Tue, 9 Apr 2002 14:01:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA23301 for ; Tue, 9 Apr 2002 14:01:29 -0500 (CDT) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Tue, 09 Apr 2002 12:00:58 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id <2HWY5NRZ>; Tue, 9 Apr 2002 12:00:58 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D0752360725@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: LCD Monitors Date: Tue, 9 Apr 2002 12:00:57 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: LCD Monitors Date: Tue, 9 Apr 2002 12:00:57 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to everyone who responded to my inquiry concerning the LCD monitors in the treatment room. From the responses I got it appears there is no problem. Thanks Again, Dan Watters UMC Tucson > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 09 21:59:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16v1mY-0004al-00; Tue, 09 Apr 2002 21:59:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F2FA41112F3; Tue, 9 Apr 2002 23:02:14 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA25624 for linac-eng-list; Tue, 9 Apr 2002 14:29:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA25617 for ; Tue, 9 Apr 2002 14:29:00 -0500 (CDT) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id <2HM4LZJJ>; Tue, 9 Apr 2002 15:28:18 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA9F@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Jonathan Chan'" , linac eng Subject: RE: Morning checkout Date: Tue, 9 Apr 2002 15:28:11 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Jonathan Chan'" , linac eng Subject: RE: Morning checkout Date: Tue, 9 Apr 2002 15:28:11 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I would record a lot of typical operating values for future reference. Voltages, prfs, currents. ohms of pots, etc. Look at each system or PCB, decide what you need. both for a failue and a screwup---oops, wrong pot. I just reloaded my mlc software after a disaster, be sure you have all of it, backups of the appropriate parts, emergency repair disks, etc. This data have saved us more than once. jerry > -----Original Message----- > From: Jonathan Chan [SMTP:sky8808@hutchcity.com] > Sent: Tuesday, April 09, 2002 2:25 AM > To: linac eng > Subject: Morning checkout > > We have just another Varian's 6EX (with PV and 120 leaves MLC) put into > service. > Would like to know what other parameters you would like to take or measure > prior to releasing the machine for daily treatment? > Currently we just run the morning checkout, and check the dose constancy. > > Rgds, > Jonathan Chan 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 10 06:57:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vAAi-0005ce-00; Wed, 10 Apr 2002 06:57:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9E0D51112F4; Wed, 10 Apr 2002 07:59:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA05517 for linac-eng-list; Tue, 9 Apr 2002 23:30:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA05493 for ; Tue, 9 Apr 2002 23:30:12 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id NAA21573 for ; Wed, 10 Apr 2002 13:59:25 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (firewall-user@adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id NAA21519 for ; Wed, 10 Apr 2002 13:59:23 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id NAA23370 for ; Wed, 10 Apr 2002 13:59:22 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma019493; Wed, 10 Apr 02 13:51:57 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id NAA07746 for ; Wed, 10 Apr 2002 13:51:57 +0930 (CST) Message-Id: <200204100421.NAA07746@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 10 Apr 02 13:51:58 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 10 Apr 02 13:51:46 +0930 From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Wed, 10 Apr 2002 13:51:42 +0930 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: CT scanners X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Wed, 10 Apr 2002 13:51:42 +0930 Content-type: text/plain; charset=US-ASCII Subject: CT scanners Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi everybody, Does anybody on the list have an experience with CT scanners? I am particularly interested in those machines that use Rhino 6.5 MHU tube (or similar). If so, would you please answer following questions: 1. What is the expected life of the tube (how many slices)? 2. What is an average annual usage and therefore how often do you replace it? 3. Do you replace the tube on a scheduled basis (i.e. after certain period of time or number of slices) or are you trying to get as much as possible of it? 4. What is the price of the tube? 5. Who is manufacturung this tube and is it possible to buy it direct from the manufacturer? 6. If not, where can I source it from apart from the manufacturer of the CT scanner? I don't have any previous experience with CT scanners and will really appreciate all answers, suggestions and any other related information. Regards, Andrew Frolov Manager, Radiation Engineering Medical Physics Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 10 18:14:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vKk7-0003XZ-00; Wed, 10 Apr 2002 18:14:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1EBD11112F2; Wed, 10 Apr 2002 19:16:57 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA05736 for linac-eng-list; Wed, 10 Apr 2002 10:32:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA05729 for ; Wed, 10 Apr 2002 10:32:13 -0500 (CDT) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA17262; Wed, 10 Apr 2002 09:38:21 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3CB45B10.AA52E109@scf.sk.ca> Date: Wed, 10 Apr 2002 09:32:32 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Linac-Engineers, Listserver" Subject: Varian Millenium MLC Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 10 Apr 2002 09:32:32 -0600 From: Chris Barnardo X-Accept-Language: en To: "Linac-Engineers, Listserver" Subject: Varian Millenium MLC Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi List: We have a Varian 21EX with Millenium 120 Leaf MLC. We are wondering if anyone has found a supplier or part # for the bearings used in the Full and Half Leaf Screws. Any info would be greatfully appreciated. Thanks. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 10 18:50:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vLId-0003c3-00; Wed, 10 Apr 2002 18:50:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B44B61112F3; Wed, 10 Apr 2002 19:52:36 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA09676 for linac-eng-list; Wed, 10 Apr 2002 11:26:36 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA09671 for ; Wed, 10 Apr 2002 11:26:34 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 10 Apr 2002 16:18:59 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Wed, 10 Apr 2002 09:26:00 -0700 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Wed, 10 Apr 2002 09:26:04 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Wed, 10 Apr 2002 09:26:04 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to all for your Job descriptions. Do we have a lot of stuff to do or what?! I think as a final statement at the end of mine I should add the requirement to "run a small country when time permits". Regards to all, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 10 19:09:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vLbL-0003dl-00; Wed, 10 Apr 2002 19:09:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 74B311112F1; Wed, 10 Apr 2002 20:11:56 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA10828 for linac-eng-list; Wed, 10 Apr 2002 11:46:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq03.netvigator.com (imsmq03.netvigator.com [208.139.127.37]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA10738 for ; Wed, 10 Apr 2002 11:46:15 -0500 (CDT) Received: (qmail 21512 invoked from network); 10 Apr 2002 16:46:13 -0000 Received: from pcd421216.netvigator.com (HELO yeung) (203.218.211.216) by imsmq03.netvigator.com with SMTP; 10 Apr 2002 16:46:13 -0000 Message-ID: <000b01c1e0ae$f361f8a0$b5a7fea9@yeung> From: "k yeung" To: Subject: Re: Varian EDW treatment termination Date: Thu, 11 Apr 2002 00:44:15 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C1E0F2.0152DE00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Varian EDW treatment termination Date: Thu, 11 Apr 2002 00:44:15 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C1E0F2.0152DE00" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C1E0F2.0152DE00 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian Clinac Version 6.0 Can anyone advise what are the exact conditions which will terminate an = enhanced dynamic wedge treatment? We found several incidents the EDW treatment was terminated with DOS1 = but the MU shown was less than the setting by one. The dynamic report = showed the MU terminated was less than the setting by one and the actual = MU delivered was greater than the setting by several cMU. Any ideas? Best regards, Kim Yeung=20 ------=_NextPart_000_0008_01C1E0F2.0152DE00 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
         Varian Clinac Version=20 6.0
     
    Can anyone advise what are the exact conditions = which will=20 terminate an enhanced dynamic wedge treatment?
     
    We found several incidents the EDW treatment was = terminated=20 with DOS1 but the MU shown was less than the setting by=20 one. The dynamic report showed the MU = terminated was=20 less than the setting by one and the actual MU delivered was = greater=20 than the setting by several cMU.
     
    Any ideas?
     
    Best regards,
     
    Kim Yeung 
    ------=_NextPart_000_0008_01C1E0F2.0152DE00-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 11 10:03:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vZYY-0004iu-00; Thu, 11 Apr 2002 10:03:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D84021105ED; Wed, 10 Apr 2002 21:45:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA12653 for linac-eng-list; Wed, 10 Apr 2002 13:21:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA12610 for ; Wed, 10 Apr 2002 13:21:39 -0500 (CDT) Received: from 159.139.152.113 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Wed, 10 Apr 2002 13:24:22 -0500 Received: by corpexcon02.corp.medcity.net with Internet Mail Service (5.5.2653.19) id <2DMTWPF1>; Wed, 10 Apr 2002 13:21:42 -0500 Message-ID: <39A90AC123CB9D428821E2BC273E73CD0189A5FF@ftwex03.ftw.medcity.net> From: Barrett Marc To: "'k yeung'" Cc: "'Linac Engineer's Group'" Subject: RE: Varian EDW treatment termination Date: Wed, 10 Apr 2002 13:21:32 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Barrett Marc To: "'k yeung'" Cc: "'Linac Engineer's Group'" Subject: RE: Varian EDW treatment termination Date: Wed, 10 Apr 2002 13:21:32 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Kim, The EDW treatment will be terminated when the set MUs are delivered to within an acceptable standard deviation. Even though I cannot recall off the top of my head what the limits are, it seems that you are well within if you have only "several cMU" variance. In running the EDW, the dose rate will obviously vary during the treatment delivery. This will "cause" a small variance such as you've seen, in the "actual MUs" delivered. That is why you see the report at the end of the treatment showing you the "actual MUs" delivered. In the EDW documentation there is a spec for the delivered vs. set MUs. Sounds like normal operation to me. Marc R. Barrett Radiation Physicist, Director, RSO Rapides Cancer Center marc.barrett@hcahealthcare.com (318) 449-7200 > -----Original Message----- > From: k yeung [SMTP:kimyeung@netvigator.com] > Sent: Wednesday, April 10, 2002 11:44 AM > To: Linac-Eng@plato.aristotle.net > Subject: Re: Varian EDW treatment termination > > Hi Colleagues, > > Varian Clinac Version 6.0 > > Can anyone advise what are the exact conditions which will terminate an > enhanced dynamic wedge treatment? > > We found several incidents the EDW treatment was terminated with DOS1 but > the MU shown was less than the setting by one. The dynamic report showed > the MU terminated was less than the setting by one and the actual MU > delivered was greater than the setting by several cMU. > > Any ideas? > > Best regards, > > Kim Yeung 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 11 10:04:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vZYs-0004s1-00; Thu, 11 Apr 2002 10:04:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1E531112D7E; Thu, 11 Apr 2002 02:39:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA14970 for linac-eng-list; Wed, 10 Apr 2002 18:12:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.primex.co.uk (smtp.primex.co.uk [213.165.147.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA14961 for ; Wed, 10 Apr 2002 18:12:29 -0500 (CDT) Received: from oemcomputer (dialup120.primex.co.uk [195.157.34.120]) by smtp.primex.co.uk (8.11.6/8.11.6) with SMTP id g3ANE2T31164; Thu, 11 Apr 2002 00:14:04 +0100 Message-ID: <016b01c1e0e5$f51dfb80$78229dc3@oemcomputer> From: "Chris Usher" To: "Jonathan Chan" , "linac eng" References: <1714094.1018333491898.JavaMail.root@webmail06> Subject: Re: Morning checkout Date: Thu, 11 Apr 2002 00:04:23 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="Big5" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Usher" To: "Jonathan Chan" , "linac eng" Subject: Re: Morning checkout Date: Thu, 11 Apr 2002 00:04:23 +0100 Content-Type: text/plain; charset="Big5" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk While the time delay is running we check the parameters you are prompted for when you exit morning checkout, as well as that we would check a dynamic wedge, the ODI and the lasers and perhaps an MLC pattern. Chris > We have just another Varian's 6EX (with PV and 120 leaves MLC) put into service. > Would like to know what other parameters you would like to take or measure prior to releasing the machine for daily treatment? > Currently we just run the morning checkout, and check the dose constancy. > > Rgds, > Jonathan Chan 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 11 10:04:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vZYw-0004u5-00; Thu, 11 Apr 2002 10:04:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 471B21105EC; Wed, 10 Apr 2002 21:45:12 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA09754 for linac-eng-list; Wed, 10 Apr 2002 13:15:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.accuray.com (exchange.accuray.com [38.169.25.170]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA09742 for ; Wed, 10 Apr 2002 13:15:28 -0500 (CDT) content-class: urn:content-classes:message Subject: RE: Varian EDW treatment termination MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1E0BB.B026D469" X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Wed, 10 Apr 2002 11:15:26 -0700 Message-ID: <634284F16B42C249B642E5AB43FD720B13C108@exchange.accuray.com> Thread-Topic: Varian EDW treatment termination Thread-Index: AcHguOr0/i+F1TjmT9iJho0FjhB4OAAAYWaA From: "John Somers" To: "k yeung" , Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Subject: RE: Varian EDW treatment termination Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1E0BB.B026D469" X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Date: Wed, 10 Apr 2002 11:15:26 -0700 Thread-Topic: Varian EDW treatment termination Thread-Index: AcHguOr0/i+F1TjmT9iJho0FjhB4OAAAYWaA From: "John Somers" To: "k yeung" , Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C1E0BB.B026D469 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Kim, this issue has been investigated in some depth by the physicists at Univ. of California, San Francisco (UCSF). They reported on it at the AAPM physics meeting last year. I don't know if Varian has made any changes since. I won't attempt to recall the explanation, other than to say it's embedded in the EDW software. This has some implications for treatments, especially at low dose regions, so definitely a medical physics matter. I suggest you have your physicist contact Dr. Verhey at UCSF. His contact info is available in the AAPM directory, which is accessible by essentially all the medical physicists most of us work with. =20 =20 Best wishes, John Somers -----Original Message----- From: k yeung [mailto:kimyeung@netvigator.com] Sent: Wednesday, April 10, 2002 9:44 AM To: Linac-Eng@plato.aristotle.net Subject: Re: Varian EDW treatment termination Hi Colleagues, =20 Varian Clinac Version 6.0 =20 Can anyone advise what are the exact conditions which will terminate an enhanced dynamic wedge treatment? =20 We found several incidents the EDW treatment was terminated with DOS1 but the MU shown was less than the setting by one. The dynamic report showed the MU terminated was less than the setting by one and the actual MU delivered was greater than the setting by several cMU. =20 Any ideas? =20 Best regards, =20 Kim Yeung=20 ------_=_NextPart_001_01C1E0BB.B026D469 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Kim,=20 this issue has been investigated in some depth by the physicists at = Univ. of=20 California, San Francisco (UCSF).  They reported on it at the AAPM = physics=20 meeting last year.  I don't know if Varian has made any changes=20 since.
        I won't attempt to recall = the=20 explanation, other than to say it's embedded in the EDW=20 software.  This has some implications for treatments, = especially at=20 low dose regions, so definitely a medical physics=20 matter.
      I suggest you have your = physicist=20 contact Dr. Verhey at UCSF.  His contact info is available in the = AAPM=20 directory, which is accessible by essentially all the medical physicists = most of=20 us work with.
     
     
        Best = wishes,
            = John=20 Somers
    -----Original Message-----
    From: k yeung=20 [mailto:kimyeung@netvigator.com]
    Sent: Wednesday, April 10, = 2002=20 9:44 AM
    To: Linac-Eng@plato.aristotle.net
    Subject: = Re:=20 Varian EDW treatment termination

    Hi Colleagues,
     
         Varian Clinac Version=20 6.0
     
    Can anyone advise what are the exact conditions = which will=20 terminate an enhanced dynamic wedge treatment?
     
    We found several incidents the EDW treatment was = terminated=20 with DOS1 but the MU shown was less than the setting by=20 one. The dynamic report showed the MU = terminated was=20 less than the setting by one and the actual MU delivered was = greater=20 than the setting by several cMU.
     
    Any ideas?
     
    Best regards,
     
    Kim = Yeung 
    ------_=_NextPart_001_01C1E0BB.B026D469-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 11 10:04:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vZYw-0004u6-00; Thu, 11 Apr 2002 10:04:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 071D61112FA; Wed, 10 Apr 2002 20:42:08 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA15768 for linac-eng-list; Wed, 10 Apr 2002 12:16:16 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (hscemail5.hscs.Virginia.EDU [128.143.176.152]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA15764 for ; Wed, 10 Apr 2002 12:16:14 -0500 (CDT) Received: from HSCEMAIL2.hscs.virginia.edu ([128.143.111.76]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Wed, 10 Apr 2002 13:16:14 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Subject: Beam stopper lube Date: Wed, 10 Apr 2002 13:16:13 -0400 Message-ID: Thread-Topic: Beam stopper lube Thread-Index: AcHgp+w88tz7TLlsRAedl10G3WMC0Q== From: "Dove, Bill E" To: "Linac Engineers Group" X-OriginalArrivalTime: 10 Apr 2002 17:16:14.0145 (UTC) FILETIME=[6AF76310:01C1E0B3] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA15765 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 Subject: Beam stopper lube Date: Wed, 10 Apr 2002 13:16:13 -0400 Thread-Topic: Beam stopper lube Thread-Index: AcHgp+w88tz7TLlsRAedl10G3WMC0Q== From: "Dove, Bill E" To: "Linac Engineers Group" X-OriginalArrivalTime: 10 Apr 2002 17:16:14.0145 (UTC) FILETIME=[6AF76310:01C1E0B3] X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA15765 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We at the University of Virginia are blessed with very small treatment rooms at the main hospital which make it necessary to have beamstoppers. Our 2300 CD is eating harmonic drives. The glides have lubricant on them and feel slippery to the touch, but we speculate that they may not be "slippery" enough and over taxing the drives. I contacted the Super Lube company and asked if their spray lubricant would work in such an application. The claimed that it would be superior due to the fact that the PTFE that it contains is the "most slippery" substance known, it fills any uneven surfaces, can easily function under the load from the beamstopper, not affected by temperature changes and does not wipe off (sticks very well to the applied surfaces). The recommended STP/grafite concoction that is supposed to be added through the "oiler tube" to keep the felt lube pads saturated is a real joy to work with. I wonder if it really goes through the little hole in the end of this "tube", applying directly to the glide surfaces is probably the only way to get this nasty stuff where it is needed. Opinions and advice appreciated. Thanks. William Dove, RTR(T) Service Engineer University of Virginia Health System Rad. Oncology Dept., Radiological Physics Div. Box 800375, Room 1787 Charlottesville, 22908 Voice: (434) 924-9422 FAX: (434) 982-3520 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 11 22:12:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vkwE-0000wG-00; Thu, 11 Apr 2002 22:12:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8B75C1112F1; Thu, 11 Apr 2002 23:15:07 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA18970 for linac-eng-list; Thu, 11 Apr 2002 14:16:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA18924 for ; Thu, 11 Apr 2002 14:16:31 -0500 (CDT) Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Thu, 11 Apr 2002 12:15:46 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0 Date: Thu, 11 Apr 2002 12:15:25 -0700 From: "Nelson Lacsina" To: , Subject: Re: Suggestion Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA18942 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 11 Apr 2002 12:15:25 -0700 From: "Nelson Lacsina" To: , Subject: Re: Suggestion Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA18942 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Varian with impac rvs >>> "Rozenblat, Alex" 03/28/02 06:32AM >>> Hello, everyone First of all thank you for the overwhelming response - one message. I have a suggestion, of course if you have a minute to spare: can we do a fast survey about what types of linac we service. If everyone replies (to all, please) to this message with only one info - what does he/she service - name only not quantity - it would give us brake down of the list population. Would be helpful to see who stayed after mass exodus caused by issue "closed/open". May be it's only Varian list now, or may be - hopefully - not. My part: in our centre we have Electas, Mevatrons (Siemens), Primuses (Siemens). Alex Rozenblat, TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 12 12:49:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16vycv-0003lw-00; Fri, 12 Apr 2002 12:49:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 153E81112F1; Fri, 12 Apr 2002 13:52:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA06605 for linac-eng-list; Fri, 12 Apr 2002 05:30:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m09.mx.aol.com (imo-m09.mx.aol.com [64.12.136.164]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA06599 for ; Fri, 12 Apr 2002 05:30:52 -0500 (CDT) From: Rtsolution@aol.com Received: from Rtsolution@aol.com by imo-m09.mx.aol.com (mail_out_v32.5.) id y.192.5530204 (2519) for ; Fri, 12 Apr 2002 06:30:20 -0400 (EDT) Message-ID: <192.5530204.29e8113c@aol.com> Date: Fri, 12 Apr 2002 06:30:20 EDT Subject: 2100C low dose rate - RF driver To: Linac-Eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 5.0 for Windows sub 107 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Rtsolution@aol.com Date: Fri, 12 Apr 2002 06:30:20 EDT Subject: 2100C low dose rate - RF driver To: Linac-Eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Last week our 2100EX just over one year old gave dose rate on all energies. This was caused by the RF driver only gave 20% of the output. Unfurtunately, the machine is out of warranty anf therefore I had to spend a great sum of $. Does any one know of whre to send for repair ? direct SPC in Japan ? Thanks in advance RTSolutions 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 12 19:26:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16w4op-0006Uk-00; Fri, 12 Apr 2002 19:26:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C14991112F1; Fri, 12 Apr 2002 20:28:44 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA07580 for linac-eng-list; Fri, 12 Apr 2002 11:32:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm032.netvigator.com (imsm032.netvigator.com [218.102.23.102]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA07575 for ; Fri, 12 Apr 2002 11:32:25 -0500 (CDT) Received: (qmail 8292 invoked from network); 12 Apr 2002 16:32:23 -0000 Received: from pcd324153.netvigator.com (HELO yeung) (203.218.114.153) by imsm032.netvigator.com with SMTP; 12 Apr 2002 16:32:23 -0000 Message-ID: <001401c1e23f$57816780$25e9fea9@yeung> From: "k yeung" To: Subject: Re: Varian DS12-04 interlock Date: Sat, 13 Apr 2002 00:30:21 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01C1E282.65618400" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Varian DS12-04 interlock Date: Sat, 13 Apr 2002 00:30:21 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01C1E282.65618400" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0011_01C1E282.65618400 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian Clinac 2300CD/600CD Version 6.0 We have frequent DS12-04 interlock reported on our 2300CD & 600CD. Could anyone advise how does the Clinac detect the DS12-04 interlock? = What signals do the Clinac require ? We are quite sure the control timer pcb of the Clinac's are okay and the = interlock is likely caused by some loose connections either in the edge = connector or in the backplane. Any ideas? Thanks in advance. Kim Yeung ------=_NextPart_000_0011_01C1E282.65618400 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
            =    =20 Varian Clinac 2300CD/600CD Version 6.0
     
    We have frequent DS12-04 interlock reported on our = 2300CD=20 & 600CD.
     
    Could anyone advise how does the Clinac detect the = DS12-04=20 interlock? What signals do the Clinac require ?
     
    We are quite sure the control timer pcb of the = Clinac's are=20 okay and the interlock is likely caused by some loose connections either = in the=20 edge connector or in the backplane.
     
    Any ideas?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0011_01C1E282.65618400-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 12 19:26:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16w4p1-0006Up-00; Fri, 12 Apr 2002 19:26:51 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 38C0C1112F1; Fri, 12 Apr 2002 20:28:57 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA10107 for linac-eng-list; Fri, 12 Apr 2002 11:58:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA10103 for ; Fri, 12 Apr 2002 11:58:36 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g3CGwOeu118588; Fri, 12 Apr 2002 12:58:24 -0400 Message-ID: <3CB710A4.3A72FA1C@hsc.vcu.edu> Date: Fri, 12 Apr 2002 12:51:48 -0400 From: "Christopher L. Bartee" X-Mailer: Mozilla 4.75 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Nelson Lacsina Cc: linac-eng@plato.aristotle.net, Alex.Rozenblat@tsrcc.on.ca Subject: Re: Suggestion References: Content-Type: multipart/mixed; boundary="------------E53F49D82429108D3CC103E6" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 12 Apr 2002 12:51:48 -0400 From: "Christopher L. Bartee" X-Accept-Language: en To: Nelson Lacsina Cc: linac-eng@plato.aristotle.net, Alex.Rozenblat@tsrcc.on.ca Subject: Re: Suggestion Content-Type: multipart/mixed; boundary="------------E53F49D82429108D3CC103E6" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------E53F49D82429108D3CC103E6 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Varian Linacs, Varian Sims, Kermath Sims Picker Aqsim Nelson Lacsina wrote: > Varian with impac rvs > > >>> "Rozenblat, Alex" 03/28/02 06:32AM >>> > > Hello, everyone > > First of all thank you for the overwhelming response - one message. > > I have a suggestion, of course if you have a minute to spare: can we do a > fast survey about what types of linac we service. If everyone replies (to > all, please) to this message with only one info - what does he/she service - > name only not quantity - it would give us brake down of the list population. > Would be helpful to see who stayed after mass exodus caused by issue > "closed/open". May be it's only Varian list now, or may be - hopefully - > not. > > My part: in our centre we have Electas, Mevatrons (Siemens), Primuses > (Siemens). > > Alex Rozenblat, > TSRCC, Toronto --------------E53F49D82429108D3CC103E6 Content-Type: text/x-vcard; charset=us-ascii; name="clbartee.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Christopher L. Bartee Content-Disposition: attachment; filename="clbartee.vcf" begin:vcard n:Bartee;Christopher tel;work:804-628-0977 x-mozilla-html:FALSE org:Virginia Commonwealth University;Department of Radiation Oncology version:2.1 email;internet:Clbartee@hsc.vcu.edu title:Research Associate adr;quoted-printable:;;Medical College of Virginia=0D=0A401 College St;Richmond ;Virginia;23298-0058; fn:Christopher Bartee end:vcard --------------E53F49D82429108D3CC103E6-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwS-0006pj-00; Sat, 13 Apr 2002 05:11:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EC76711130B; Sat, 13 Apr 2002 06:12:05 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id VAA01973 for linac-eng-list; Fri, 12 Apr 2002 21:53:16 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01948 for ; Fri, 12 Apr 2002 21:53:07 -0500 (CDT) Received: (qmail 27849 invoked by uid 0); 12 Apr 2002 13:18:43 -0000 Received: (qmail 18453 invoked from network); 9 Apr 2002 22:11:17 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 22:11:17 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA22438 for linac-eng-list; Tue, 9 Apr 2002 13:48:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA22434 for ; Tue, 9 Apr 2002 13:48:54 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 9 Apr 2002 14:48:22 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA97@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:48:19 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:48:19 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Our cameras are not in the beam path, but do have an unshielded view of the head and isocenter. Ours are on the wall at the end of the couch, about 15 deg off couch centerline, 7-8 ft high. Interesting discussion. Don't think I will rush to get color cameras. Jerry > -----Original Message----- > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > Sent: Sunday, April 07, 2002 8:56 PM > To: linac-eng@plato.aristotle.net > Subject: RE: Treatment Room Cameras. > > G'day, > Sorry for the second posting but I had a thought. (This happens so rarely that > I want to share the moment with you all.) > We have had colour CCD cameras in all our bunkers since 198n. We have had > degredation of image due to spots but nothing too serious. We have had 2-3 CCD > elements replaced so far. > I note in Jerry's posting that the cameras are mounted to look straight at > isocentre. Does this mean that they are mounted in the primary beam > path??????? > > Ours are WELL out of the primary beam (about 30-45 deg off the sagital line). > > Any thoughts??? > > Dave. > > >>> "Maddox, Buford J" 6/04/02 07:38:51 >>> > It would take a lot of lead. The problem is that the camera has to look > straight at the isocenter. Anyone tried mirrors or light pipes? Still in > the black and white age, no problems. > Jerry > > > -----Original Message----- > > From: Ward Dixon [SMTP:dixwa@reg2.health.nb.ca] > > Sent: Friday, April 05, 2002 12:10 PM > > To: Linac-eng@plato.aristotle.net > > Subject: Treatment Room Cameras. > > > > I am having trouble getting much life out of my CCD color cameras that > > are in my Varian 2100 c/d treatment room. The radiation keeps damaging the > > CCD chip and I get colored stars all over the picture. Picture quality > > deteriorates daily. I have had a shielded box made to try to reduce the > > radiation reaching the camera and this did not help. > > I am wondering if anyone has found a camera that is not damaged by the > > radiation or if someone has found a good setup in which they get a much > > longer life out of their camera. > > Any suggestions would be appreciated. > > Thanks, Ward Dixon > > > > ********************************************************************** > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. If you have received this email in error please notify > the system manager. > > This footnote also confirms that this email message has been swept by > MIMEsweeper for the presence of computer viruses. > > www.mimesweeper.com > ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwS-0006pk-00; Sat, 13 Apr 2002 05:11:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5A8FE1112FB; Sat, 13 Apr 2002 06:12:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01969 for linac-eng-list; Fri, 12 Apr 2002 21:53:15 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01934 for ; Fri, 12 Apr 2002 21:53:05 -0500 (CDT) Received: (qmail 27845 invoked by uid 0); 12 Apr 2002 13:18:43 -0000 Received: (qmail 17986 invoked from network); 9 Apr 2002 22:10:39 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 22:10:39 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA23067 for linac-eng-list; Tue, 9 Apr 2002 13:58:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA23058 for ; Tue, 9 Apr 2002 13:58:42 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id <2TSSZ690>; Tue, 9 Apr 2002 14:58:10 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA99@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Williams, Rod'" , "'Linac-Eng@plato.aristotle.net'" Subject: RE: Varian 8503B deque tube Date: Tue, 9 Apr 2002 14:58:07 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Williams, Rod'" , "'Linac-Eng@plato.aristotle.net'" Subject: RE: Varian 8503B deque tube Date: Tue, 9 Apr 2002 14:58:07 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk That tube should be fine. I have used many older than that. > -----Original Message----- > From: Williams, Rod [SMTP:rod.williams@phci.org] > Sent: Monday, April 08, 2002 6:55 AM > To: 'Linac-Eng@plato.aristotle.net' > Subject: Varian 8503B deque tube > > Hi to all I have a 8503B EEV Tube that is brand new but it has been lying > around for about 3 years, if anyone wants it, the first one to e-mail me I > will ship it to. > > Rod.Williams@phci.org > WAUKESHA MEMORIAL HOSPITAL > 262-928-4734 > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwS-0006pp-00; Sat, 13 Apr 2002 05:11:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D4DB511130A; Sat, 13 Apr 2002 06:12:05 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01982 for linac-eng-list; Fri, 12 Apr 2002 21:53:23 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01978 for ; Fri, 12 Apr 2002 21:53:19 -0500 (CDT) Received: (qmail 27857 invoked by uid 0); 12 Apr 2002 13:18:44 -0000 Received: (qmail 9662 invoked from network); 9 Apr 2002 22:39:11 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 22:39:11 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA23005 for linac-eng-list; Tue, 9 Apr 2002 13:57:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA23000 for ; Tue, 9 Apr 2002 13:57:48 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 9 Apr 2002 14:57:08 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFA98@phsexch6.partners.org> From: "Maddox, Buford J" To: "'terry.kearey@orebroll.se'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:56:58 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA23001 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'terry.kearey@orebroll.se'" , Linac-eng@plato.aristotle.net Subject: RE: Treatment Room Cameras. Date: Tue, 9 Apr 2002 14:56:58 -0400 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA23001 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk If you have neutrons, your physicist will have likely specified some borated polyethylene shielding for doors or ducts, you might be able to get some leftovers. Need to surround the camera, as there is a uniform low energy flux in the room, if you have any. The high E photons can also cause damage. I am working on a neutron sink, only $ 1million. Also bridges for sale. Jerry > -----Original Message----- > From: terry.kearey@orebroll.se [SMTP:terry.kearey@orebroll.se] > Sent: Monday, April 08, 2002 4:59 AM > To: Linac-eng@plato.aristotle.net > Subject: SV: Treatment Room Cameras. > > There are rad hardened cameras, MegaRad or some such (B/W by the way). I did > look into it once but determined the cost very nearly outweighed the > lifespan. We've since switched to B/W cameras as they are much less prone to > radiation damage. > The only way to really stop the neutrons is to shield the camera optics side > with a water tank, (keep a few fish in it too :- ) > > Tel. > > > -----Ursprungligt meddelande----- > Från: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] > Skickat: den 5 april 2002 19:10 > Till: Linac-eng@plato.aristotle.net > Ämne: Treatment Room Cameras. > > > I am having trouble getting much life out of my CCD color cameras that are > in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD > chip and I get colored stars all over the picture. Picture quality > deteriorates daily. I have had a shielded box made to try to reduce the > radiation reaching the camera and this did not help. > I am wondering if anyone has found a camera that is not damaged by the > radiation or if someone has found a good setup in which they get a much > longer life out of their camera. > Any suggestions would be appreciated. > Thanks, Ward Dixon 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwS-0006po-00; Sat, 13 Apr 2002 05:11:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A81EE1112FD; Sat, 13 Apr 2002 06:12:05 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01977 for linac-eng-list; Fri, 12 Apr 2002 21:53:19 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01970 for ; Fri, 12 Apr 2002 21:53:15 -0500 (CDT) Received: (qmail 27853 invoked by uid 0); 12 Apr 2002 13:18:43 -0000 Received: (qmail 23468 invoked from network); 9 Apr 2002 22:16:47 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 22:16:47 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA23305 for linac-eng-list; Tue, 9 Apr 2002 14:01:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zeus.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA23301 for ; Tue, 9 Apr 2002 14:01:29 -0500 (CDT) Received: from xchange.umcaz.edu by zeus.umcaz.edu (MX V4.2 VAX) with SMTP; Tue, 09 Apr 2002 12:00:58 MST Received: by XChange.umcaz.edu with Internet Mail Service (5.5.2653.19) id <2HWY5NRZ>; Tue, 9 Apr 2002 12:00:58 -0700 Message-ID: <6CE096D0CDF4D211A3110008C75D0752360725@XChange.umcaz.edu> From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: LCD Monitors Date: Tue, 9 Apr 2002 12:00:57 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: LCD Monitors Date: Tue, 9 Apr 2002 12:00:57 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to everyone who responded to my inquiry concerning the LCD monitors in the treatment room. From the responses I got it appears there is no problem. Thanks Again, Dan Watters UMC Tucson > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwS-0006pl-00; Sat, 13 Apr 2002 05:11:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8F5C71112FC; Sat, 13 Apr 2002 06:12:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01972 for linac-eng-list; Fri, 12 Apr 2002 21:53:16 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01959 for ; Fri, 12 Apr 2002 21:53:09 -0500 (CDT) Received: (qmail 27801 invoked by uid 0); 12 Apr 2002 13:18:39 -0000 Received: (qmail 21064 invoked from network); 8 Apr 2002 14:10:40 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 8 Apr 2002 14:10:40 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA08913 for linac-eng-list; Mon, 8 Apr 2002 05:55:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA08909 for ; Mon, 8 Apr 2002 05:55:39 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g38At4129304 for ; Mon, 8 Apr 2002 05:55:04 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g38At4s29300 for ; Mon, 8 Apr 2002 05:55:04 -0500 (CDT) Received: through eSafe SMTP Relay 1016464309; Mon Apr 08 05:55:04 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Mon, 8 Apr 2002 05:55:04 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E7C@wmhmail.phci.org> From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: Varian 8503B deque tube Date: Mon, 8 Apr 2002 05:55:02 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEB.D5949590" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: Varian 8503B deque tube Date: Mon, 8 Apr 2002 05:55:02 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEB.D5949590" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DEEB.D5949590 Content-Type: text/plain Hi to all I have a 8503B EEV Tube that is brand new but it has been lying around for about 3 years, if anyone wants it, the first one to e-mail me I will ship it to. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 ------_=_NextPart_001_01C1DEEB.D5949590 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Varian 8503B deque tube

    Hi to all I have a 8503B EEV Tube that = is brand new but it has been lying around for about 3 years, if anyone = wants it, the first one to e-mail me I will ship it to.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


    ------_=_NextPart_001_01C1DEEB.D5949590-- 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwd-0006py-00; Sat, 13 Apr 2002 05:11:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5142B1112F1; Sat, 13 Apr 2002 06:12:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01960 for linac-eng-list; Fri, 12 Apr 2002 21:53:10 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01922 for ; Fri, 12 Apr 2002 21:53:02 -0500 (CDT) Received: (qmail 27824 invoked by uid 0); 12 Apr 2002 13:18:41 -0000 Received: (qmail 5049 invoked from network); 9 Apr 2002 09:26:25 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 09:26:25 -0000 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id BAA26084 for linac-eng-list; Tue, 9 Apr 2002 01:28:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id BAA26080 for ; Tue, 9 Apr 2002 01:28:26 -0500 (CDT) Received: (qmail 27094 invoked from network); 9 Apr 2002 06:18:52 -0000 Received: from unknown (HELO webmail06) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 9 Apr 2002 06:18:52 -0000 Message-ID: <1714094.1018333491898.JavaMail.root@webmail06> Date: Tue, 9 Apr 2002 14:24:51 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Morning checkout Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 9 Apr 2002 14:24:51 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Morning checkout Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have just another Varian's 6EX (with PV and 120 leaves MLC) put into service. Would like to know what other parameters you would like to take or measure prior to releasing the machine for daily treatment? Currently we just run the morning checkout, and check the dose constancy. Rgds, Jonathan Chan 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwd-0006q1-00; Sat, 13 Apr 2002 05:11:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 88BA91112F2; Sat, 13 Apr 2002 06:12:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01937 for linac-eng-list; Fri, 12 Apr 2002 21:53:06 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01905 for ; Fri, 12 Apr 2002 21:52:59 -0500 (CDT) Received: (qmail 27833 invoked by uid 0); 12 Apr 2002 13:18:42 -0000 Received: (qmail 22215 invoked from network); 9 Apr 2002 15:37:59 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 15:37:59 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA04140 for linac-eng-list; Tue, 9 Apr 2002 07:28:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA04136 for ; Tue, 9 Apr 2002 07:28:28 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Tue, 9 Apr 2002 09:27:54 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Tue, 09 Apr 2002 09:26:19 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 09 Apr 2002 09:25:45 -0300 From: "Ward Dixon" To: Subject: CCD Cameras. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA04137 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Apr 2002 09:25:45 -0300 From: "Ward Dixon" To: Subject: CCD Cameras. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA04137 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to all who gave input on my CCD Camera situation. I am now wondering if anyone out there has recently purchased a tube type camera. My local distributer is looking but has told me that he doesn't think that tube type, CCTV cameras, are made anymore. I would like to find one with color, for the Therapist prefer them to black and white cameras. I have done some surfing but have come up short handed thus far. Any input would be appreciated. Thanks Ward DIxon. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwe-0006q3-00; Sat, 13 Apr 2002 05:11:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CDA6B1112F3; Sat, 13 Apr 2002 06:12:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01992 for linac-eng-list; Fri, 12 Apr 2002 21:53:33 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01988 for ; Fri, 12 Apr 2002 21:53:30 -0500 (CDT) Received: (qmail 27837 invoked by uid 0); 12 Apr 2002 13:18:42 -0000 Received: (qmail 19093 invoked from network); 9 Apr 2002 16:56:04 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 16:56:04 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA06834 for linac-eng-list; Tue, 9 Apr 2002 08:23:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA06830 for ; Tue, 9 Apr 2002 08:23:17 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Tue, 9 Apr 2002 10:22:45 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Tue, 09 Apr 2002 10:21:09 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 09 Apr 2002 10:20:40 -0300 From: "Ward Dixon" To: Subject: Varis and TDS. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA06831 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Apr 2002 10:20:40 -0300 From: "Ward Dixon" To: Subject: Varis and TDS. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA06831 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello All. We have Varis R & V in our Dept. The main system used in the hospital for patient registration and related information is called TDS or E7000 (new Version). As all Varis users would know, it runs on Windows NT4. To my knowledge TDS does not. Well, as our department expanded and more people got computers, everyone wanted access to more applications. Everyone was using Varis in one way or another. Some needed access to TDS also. The IT Dept got involved and was able to get them to work together. (Don't ask me how). Well they worked fine for a while, but now there are intermittent problems on various computers trying to run these two applications at the same time. Sometimes they will conflict. One will open and the other wont. Or they will both be open and the user will get an SNA error message, needing to reboot the computer. Sometimes everything will work fine. I don't foresee getting this resolved with the IT Department anytime soon, so I am looking for input as to get this problem solved. I am told that the TDS system is very large and used all over North America and possibly the world. If anyone has experience with TDS, input, or can direct me to someone who can help, I would greatly appreciate it. Thank you in advance. Ward Dixon Therapeutic Physics Saint John Regional Hospital Saint John, NB. Canada 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwe-0006q7-00; Sat, 13 Apr 2002 05:11:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1CD8E1112F4; Sat, 13 Apr 2002 06:12:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01971 for linac-eng-list; Fri, 12 Apr 2002 21:53:15 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01936 for ; Fri, 12 Apr 2002 21:53:06 -0500 (CDT) Received: (qmail 27797 invoked by uid 0); 12 Apr 2002 13:18:39 -0000 Received: (qmail 10517 invoked from network); 8 Apr 2002 12:09:54 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 8 Apr 2002 12:09:54 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA07561 for linac-eng-list; Mon, 8 Apr 2002 03:58:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA07557 for ; Mon, 8 Apr 2002 03:58:54 -0500 (CDT) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Mon, 8 Apr 2002 10:58:48 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Mon, 8 Apr 2002 10:58:47 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A6E9@exchange-5.orebroll.se> To: Linac-eng@plato.aristotle.net Subject: SV: Treatment Room Cameras. Date: Mon, 8 Apr 2002 10:58:46 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA07558 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: Linac-eng@plato.aristotle.net Subject: SV: Treatment Room Cameras. Date: Mon, 8 Apr 2002 10:58:46 +0200 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA07558 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk There are rad hardened cameras, MegaRad or some such (B/W by the way). I did look into it once but determined the cost very nearly outweighed the lifespan. We've since switched to B/W cameras as they are much less prone to radiation damage. The only way to really stop the neutrons is to shield the camera optics side with a water tank, (keep a few fish in it too :- ) Tel. -----Ursprungligt meddelande----- Från: Ward Dixon [mailto:dixwa@reg2.health.nb.ca] Skickat: den 5 april 2002 19:10 Till: Linac-eng@plato.aristotle.net Ämne: Treatment Room Cameras. I am having trouble getting much life out of my CCD color cameras that are in my Varian 2100 c/d treatment room. The radiation keeps damaging the CCD chip and I get colored stars all over the picture. Picture quality deteriorates daily. I have had a shielded box made to try to reduce the radiation reaching the camera and this did not help. I am wondering if anyone has found a camera that is not damaged by the radiation or if someone has found a good setup in which they get a much longer life out of their camera. Any suggestions would be appreciated. Thanks, Ward Dixon 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwe-0006qA-00; Sat, 13 Apr 2002 05:11:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5CAE11112F5; Sat, 13 Apr 2002 06:12:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01964 for linac-eng-list; Fri, 12 Apr 2002 21:53:11 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01928 for ; Fri, 12 Apr 2002 21:53:05 -0500 (CDT) Received: (qmail 27819 invoked by uid 0); 12 Apr 2002 13:18:41 -0000 Received: (qmail 20553 invoked from network); 9 Apr 2002 07:30:11 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 07:30:11 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA23155 for linac-eng-list; Mon, 8 Apr 2002 23:21:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d10.mx.aol.com (imo-d10.mx.aol.com [205.188.157.42]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA23151 for ; Mon, 8 Apr 2002 23:21:07 -0500 (CDT) From: RolandTedr@aol.com Received: from RolandTedr@aol.com by imo-d10.mx.aol.com (mail_out_v32.5.) id x.d.24f99dc7 (1322); Tue, 9 Apr 2002 00:20:23 -0400 (EDT) Message-ID: Date: Tue, 9 Apr 2002 00:20:22 EDT Subject: Re: Green Diode Laser Life To: sky8808@hutchcity.com, linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_d.24f99dc7.29e3c606_boundary" X-Mailer: AOL 6.0 for Windows XP US sub 50 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: RolandTedr@aol.com Date: Tue, 9 Apr 2002 00:20:22 EDT Subject: Re: Green Diode Laser Life To: sky8808@hutchcity.com, linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_d.24f99dc7.29e3c606_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_d.24f99dc7.29e3c606_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I went through a rash of bad gammex lasers once, kept sending them back, they kept failing. Turned out we weren't returning the ac adapters which turned out to be the problem. Roland --part1_d.24f99dc7.29e3c606_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit I went through a rash of bad gammex lasers once, kept sending them back,
    they kept failing.  Turned out we weren't returning the ac adapters which turned
    out to be the problem.

    Roland
    --part1_d.24f99dc7.29e3c606_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwe-0006qD-00; Sat, 13 Apr 2002 05:11:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 978D51112F7; Sat, 13 Apr 2002 06:12:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01943 for linac-eng-list; Fri, 12 Apr 2002 21:53:07 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01907 for ; Fri, 12 Apr 2002 21:52:59 -0500 (CDT) Received: (qmail 27841 invoked by uid 0); 12 Apr 2002 13:18:42 -0000 Received: (qmail 14884 invoked from network); 9 Apr 2002 22:07:12 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 22:07:12 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA14560 for linac-eng-list; Tue, 9 Apr 2002 13:12:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA14536 for ; Tue, 9 Apr 2002 13:12:16 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Tue, 9 Apr 2002 15:11:44 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Tue, 09 Apr 2002 15:10:09 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 09 Apr 2002 15:09:39 -0300 From: "Ward Dixon" To: Subject: VARIS vs TDS. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA14540 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Apr 2002 15:09:39 -0300 From: "Ward Dixon" To: Subject: VARIS vs TDS. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA14540 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi all. I posted a question earlier today about VARIS and TDS running on the same Win NT4 Workstation. I need to clarify something. The issue is simply the two apps running on the same computer. I don't know how the IT Dept got the TDS to run on Win NT4 platform, for my understanding is that it was not designed to do so. However, since they got this to work, it works with intermittent conflicts between the two apps. WHEN the two are loaded at the same time so as the user can toggle between the two systems. I was just told that TDS is almost nonexistent in North America but is used over seas. Again, if anyone has experience with these two products, I would appreciate your input. Thanks, Ward. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwf-0006qG-00; Sat, 13 Apr 2002 05:11:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D65801112F9; Sat, 13 Apr 2002 06:12:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA01968 for linac-eng-list; Fri, 12 Apr 2002 21:53:13 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01927 for ; Fri, 12 Apr 2002 21:53:04 -0500 (CDT) Received: (qmail 27811 invoked by uid 0); 12 Apr 2002 13:18:40 -0000 Received: (qmail 29694 invoked from network); 9 Apr 2002 01:44:26 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 9 Apr 2002 01:44:26 -0000 Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA07282 for linac-eng-list; Mon, 8 Apr 2002 17:04:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id RAA07275 for ; Mon, 8 Apr 2002 17:04:48 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 8 Apr 2002 21:57:15 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Mon, 8 Apr 2002 15:04:15 -0700 Message-ID: From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Mon, 8 Apr 2002 15:04:15 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Mon, 8 Apr 2002 15:04:15 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi there... If anyone has a formal (or otherwise) job description for a Radiation Therapy Service Engineer I would appreciate a copy or just a line by line of the requirements. Regards, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 13 05:11:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16wDwf-0006qJ-00; Sat, 13 Apr 2002 05:11:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2063C1112FA; Sat, 13 Apr 2002 06:12:04 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id VAA01935 for linac-eng-list; Fri, 12 Apr 2002 21:53:06 -0500 (CDT) Received: from borg.xsinet.co.za (pop3.xsinet.co.za [196.36.190.83] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA01906 for ; Fri, 12 Apr 2002 21:52:59 -0500 (CDT) Received: (qmail 27806 invoked by uid 0); 12 Apr 2002 13:18:40 -0000 Received: (qmail 23146 invoked from network); 8 Apr 2002 14:16:16 -0000 Received: from unknown (HELO plato.aristotle.net) (206.66.224.2) by borg.xsinet.co.za with SMTP; 8 Apr 2002 14:16:16 -0000 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA09450 for linac-eng-list; Mon, 8 Apr 2002 06:18:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA09446 for ; Mon, 8 Apr 2002 06:18:03 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g38BHWZ15100 for ; Mon, 8 Apr 2002 06:17:32 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g38BHW815096 for ; Mon, 8 Apr 2002 06:17:32 -0500 (CDT) Received: through eSafe SMTP Relay 1016464309; Mon Apr 08 06:17:32 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Mon, 8 Apr 2002 06:17:32 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E7E@wmhmail.phci.org> From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: RE: under dose Date: Mon, 8 Apr 2002 06:17:20 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEE.F2EA0410" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Linac-Eng@plato.aristotle.net'" Subject: RE: under dose Date: Mon, 8 Apr 2002 06:17:20 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1DEEE.F2EA0410" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1DEEE.F2EA0410 Content-Type: text/plain I had two machines with shorted KLY filters, they caused immediate MOD faults, buy the time s/n 1630 came around they were pulled out of the machines. It was kind of tricky because if you would pull the primary coaxes out of the tank the modulator would fire up, acted like a shorted KLYSTRON. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Bisevac, Simeon [SMTP:SimeonB@uic.edu] > Sent: Friday, April 05, 2002 3:41 PM > To: 'Randy.McVittie@lrcc.on.ca'; Williams, Rod > Cc: linac-eng@plato.aristotle.net > Subject: RE: under dose > > Hi All; > > The contraption you are referring to Randy is a filter that > Varian installed in the pulse tank to filter the 236VAC klystron > filament voltage. We lost one on our 2100EX #1398. When it fails, it > shorts > the 236VAC and will generate a KFIL interlock. This happenend while the > machine was still under warranty. Our Varian guys permanently removed it > from the circuit. I don't remember having the morning sickness problem > but > the filter may be causing small flucuations in filament voltage but not > enough > to trip the KFIL interlock YET. Don't know how long Varian was installing > these > filters but it may be worth investigating. > Another possible cause could be the power conditioner if you have one. > We have the Online Power unit. Placing the unit in bypass mode solved a > low > dose > rate problem for me on another occasion. The conditioner required some > work. > > Simeon > University of Illinois > Chicago > > > -----Original Message----- > From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] > Sent: Friday, April 05, 2002 7:40 AM > To: Williams, Rod > Cc: linac-eng@plato.aristotle.net > Subject: RE: under dose > > > > > It can be anything from an old/weak klystron to a bad solder connection > somewhere. > > Morning sickness on a klystron usually shows up as a slow start up on your > 20e > and 18x modes since > they need the most RF power. Have you measured your klystron filament > lately? > There was also some discussion on the list a while back about some > contraption > that Varian had installed in > the pulse tank and it was prone to failure. I don't recall the specifics > of > what kind of problems it caused. I will > have to dig through my old e-mails to find it. > > A bad solder joint on a board in your Modulator could cause this kind of > grief, > or something in the gun deck. > > The short answer is it could be just about anything, so you'll have to get > your > scope out and your data book and > hopefully not your cheque book! > > Happy hunting > > > Randy > Randy McVittie > London Regional Cancer Centre > London, Ontario > CANADA > > ***************************EMAIL DISCLAIMER*************************** > This e-mail and any files transmitted with it may be confidential and are > intended solely for the use of the individual or entity to whom they are > addressed. If you are not the intended recipient or the individual > responsible for delivering the e-mail to the intended recipient, any > disclosure, copying, distribution or any action taken or omitted to be > taken > in reliance on it, is strictly prohibited. If you have received this > e-mail > in error, please delete it and notify the sender or contact Health > Information Management 312.996.3941. ------_=_NextPart_001_01C1DEEE.F2EA0410 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: under dose

    I had two machines = with shorted KLY filters, they caused immediate MOD faults, buy the = time s/n 1630 came around they were pulled out of the machines. It was = kind of tricky because if you would pull the primary coaxes out of the = tank the modulator would fire up, acted like a shorted = KLYSTRON.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Bisevac, Simeon [SMTP:SimeonB@uic.edu]
      Sent:   Friday, April 05, 2002 3:41 PM
      To:     'Randy.McVittie@lrcc.on.ca'; Williams, Rod
      Cc:     linac-eng@plato.aristotle.net
      Subject:       = RE: under dose

      Hi All;

      The contraption you are referring to = Randy is a filter that
      Varian installed in the pulse tank to = filter the 236VAC klystron
      filament voltage. We lost one on our = 2100EX #1398.  When it fails, it shorts
      the 236VAC and will generate a KFIL = interlock.  This happenend while the
      machine was still under = warranty.  Our Varian guys permanently removed it
      from the circuit.  I don't = remember having the morning sickness problem but
      the filter may be causing small = flucuations in filament voltage but not
      enough
      to trip the KFIL interlock YET.  = Don't know how long Varian was installing
      these
      filters but it may be worth = investigating. 
      Another possible cause could be the = power conditioner if you have one.
      We have the Online Power unit.  = Placing the unit in bypass mode solved a low
      dose
      rate problem for me on another = occasion.  The conditioner required some
      work. 

      Simeon
      University of Illinois
      Chicago


      -----Original Message-----
      From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.= ca]
      Sent: Friday, April 05, 2002 7:40 = AM
      To: Williams, Rod
      Cc: = linac-eng@plato.aristotle.net
      Subject: RE: under dose




      It can be anything from an old/weak = klystron to a bad solder connection
      somewhere.

      Morning sickness on a klystron usually = shows up as a slow start up on your
      20e
      and 18x modes since
      they need the most RF power.  = Have you measured your klystron filament
      lately?
      There was also some discussion on the = list a while back about some
      contraption
      that Varian had installed in
      the pulse tank and it was prone to = failure.  I don't recall the specifics of
      what kind of problems it = caused.  I will
      have to dig through my old e-mails to = find it.

      A bad solder joint on a board in your = Modulator could cause this kind of
      grief,
      or something in the gun deck.

      The short answer is it could be just = about anything, so you'll have to get
      your
      scope out and your data book = and
      hopefully  not your cheque = book!

      Happy hunting


      Randy
      Randy McVittie
      London Regional Cancer Centre
      London, Ontario
      CANADA

      ***************************EMAIL  = DISCLAIMER***************************
      This e-mail and any files transmitted = with it may be confidential and are
      intended solely for the use of the = individual or entity to whom they are
      addressed.  If you are not the = intended recipient or the individual
      responsible for delivering the e-mail = to the intended recipient, any
      disclosure, copying, distribution or = any action taken or omitted to be taken
      in reliance on it, is strictly = prohibited.  If you have received this e-mail
      in error, please delete it and notify = the sender or contact Health
      Information Management 312.996.3941. =

    ------_=_NextPart_001_01C1DEEE.F2EA0410-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 15 18:44:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16x9at-0006f6-00; Mon, 15 Apr 2002 18:44:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C05E51112F1; Mon, 15 Apr 2002 19:46:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA17778 for linac-eng-list; Mon, 15 Apr 2002 11:06:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA17773 for ; Mon, 15 Apr 2002 11:06:03 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 15 Apr 2002 15:58:24 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Mon, 15 Apr 2002 09:05:36 -0700 Message-ID: <116B1F67502ED3119B2D00902740B816025C49EF@exchange3.inhs.org> From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Mon, 15 Apr 2002 09:05:37 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Job description Date: Mon, 15 Apr 2002 09:05:37 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk For some unknown reason, my earlier posting was just repeated about the job description request. I am very grateful for the information provided by a number of you but have received sufficient information on what it is that you and I do. I have no clue as to why the message re-posted. Maybe it re-posted only to me. (?) Or maybe the problem is in the modulator...... Thanks to all, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 15 22:39:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16xDG6-0006uR-00; Mon, 15 Apr 2002 22:39:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AB83E1112F1; Mon, 15 Apr 2002 23:41:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA16243 for linac-eng-list; Mon, 15 Apr 2002 14:56:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA16221 for ; Mon, 15 Apr 2002 14:56:06 -0500 (CDT) Received: from Mailsweeper2.chhlth.govt.nz (mailsweeper2.chhlth.govt.nz [159.117.18.162]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id HAA04216 for ; Tue, 16 Apr 2002 07:42:17 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper2.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Tue, 16 Apr 2002 07:59:28 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 16 Apr 2002 07:55:07 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 16 Apr 2002 07:54:51 +1200 From: "Dave Pinchin" To: Subject: Varian's inhibited water goo. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA16239 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 16 Apr 2002 07:54:51 +1200 From: "Dave Pinchin" To: Subject: Varian's inhibited water goo. Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA16239 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, A local NZ company is looking at importing and distributing the liquids used in the high energy machines. There are, however, some problems and some market research is req'd. They may even be able to provide the stuff into Australia as well. 1/ Who would be interested in a second source for the product??? 2/ What are other centres doing for their supplies??? 3/ What are the goos used in low energy machines (and quantities please)??? Thanks for your help on this one. Dave. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 16 01:07:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16xFZL-00070a-00; Tue, 16 Apr 2002 01:07:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 09C881112F1; Tue, 16 Apr 2002 02:09:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA16080 for linac-eng-list; Mon, 15 Apr 2002 17:51:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA16066 for ; Mon, 15 Apr 2002 17:51:43 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id IAA11164 for ; Tue, 16 Apr 2002 08:21:10 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id IAA11158 for ; Tue, 16 Apr 2002 08:21:10 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id IAA17859 for ; Tue, 16 Apr 2002 08:21:09 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma017761; Tue, 16 Apr 02 08:20:39 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id IAA11781 for ; Tue, 16 Apr 2002 08:20:39 +0930 (CST) Message-Id: <200204152250.IAA11781@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 16 Apr 02 08:20:38 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 16 Apr 02 08:20:17 +0930 From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Tue, 16 Apr 2002 08:20:08 +0930 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: CT scanners X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Tue, 16 Apr 2002 08:20:08 +0930 Content-type: text/plain; charset=US-ASCII Subject: CT scanners Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dear all, I appreciate all replies to my enquiry on the Subj I have received from you. Thank you very much for your co-operation. Andrew Frolov Manager, Radiation Engineering Medical Physics Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 16 12:16:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16xQ17-0001DK-00; Tue, 16 Apr 2002 12:16:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D9E681112F3; Tue, 16 Apr 2002 13:18:44 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA12819 for linac-eng-list; Tue, 16 Apr 2002 04:57:11 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA12815 for ; Tue, 16 Apr 2002 04:57:09 -0500 (CDT) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 16xPcq-000625-00; Tue, 16 Apr 2002 10:51:48 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3CB73BC1000377AD for linac-eng@plato.aristotle.net; Tue, 16 Apr 2002 10:51:48 +0100 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-1 6.5.016) id 3CBAF812000216CD for linac-eng@plato.aristotle.net; Tue, 16 Apr 2002 10:51:48 +0100 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id <2Y9TP669>; Tue, 16 Apr 2002 10:51:01 +0100 Message-ID: <37106221CAA3D511AC1800508BD316030873CE@OBERON> From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: Weekly QA MLC Linac Date: Tue, 16 Apr 2002 10:51:37 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: Weekly QA MLC Linac Date: Tue, 16 Apr 2002 10:51:37 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Any advice on what sort of QA (weekly checks) are performed on MLC machines. We have just accepted our first Elekta SL with MLC. Currently we do the usual field size checks, angles etc etc on our three accelerators. So additional advice on MLC would be appreciated. Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 16 19:04:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16xWNt-0004UB-00; Tue, 16 Apr 2002 19:04:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 334F91112F3; Tue, 16 Apr 2002 20:06:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA22225 for linac-eng-list; Tue, 16 Apr 2002 11:06:12 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA22221 for ; Tue, 16 Apr 2002 11:06:10 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 16 Apr 2002 15:58:31 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Tue, 16 Apr 2002 09:05:38 -0700 Message-ID: <116B1F67502ED3119B2D00902740B816025C49F2@exchange3.inhs.org> From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Prowess Systems Brachytherapy Date: Tue, 16 Apr 2002 09:05:40 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Prowess Systems Brachytherapy Date: Tue, 16 Apr 2002 09:05:40 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi all... My physics department has a relatively new (about 3 years old) Prowess Radiotherapy Treatment Planning system that they have de-commissioned due to our implementation of a new ADAC system. If anyone is interested please let me know and I will have you talk with our Physics guys. This is a dedicated Brachytherapy planning system with a Digital 6200 computer and Numonics digitizer and all software. Works great and lasts a long time. Regards, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 16 20:08:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16xXNn-0004XJ-00; Tue, 16 Apr 2002 20:08:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 76C8C1112F3; Tue, 16 Apr 2002 21:10:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA00171 for linac-eng-list; Tue, 16 Apr 2002 12:37:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA00151 for ; Tue, 16 Apr 2002 12:37:57 -0500 (CDT) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g3GHbct28164; Tue, 16 Apr 2002 11:37:38 -0600 (MDT) Received: from cancerboard.ab.ca ([164.102.249.255]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g3GHbna07543; Tue, 16 Apr 2002 11:37:49 -0600 (MDT) Message-ID: <3CBC6248.D92499BE@cancerboard.ab.ca> Date: Tue, 16 Apr 2002 11:41:29 -0600 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: Rtsolution@aol.com Cc: Linac-Eng@plato.aristotle.net Subject: Re: 2100C low dose rate - RF driver References: <192.5530204.29e8113c@aol.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 16 Apr 2002 11:41:29 -0600 From: Len Johnson X-Accept-Language: en To: Rtsolution@aol.com Cc: Linac-Eng@plato.aristotle.net Subject: Re: 2100C low dose rate - RF driver Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk RT We have had RF drivers repaired by Pro-Comm Inc. The telephone number I have for them is 1.732.206.0660 in Brick NJ. They also sell a replacement RF driver. Len Rtsolution@aol.com wrote: > Last week our 2100EX just over one year old gave dose rate on all energies. > This was caused by the RF driver only gave 20% of the output. Unfurtunately, > the machine is out of warranty anf therefore I had to spend a great sum of $. > > Does any one know of whre to send for repair ? direct SPC in Japan ? > > Thanks in advance > > RTSolutions 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 18 08:52:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16y5lw-0004Ov-00; Thu, 18 Apr 2002 08:52:00 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AC5E81112F5; Thu, 18 Apr 2002 09:53:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA16885 for linac-eng-list; Thu, 18 Apr 2002 01:31:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from franklin.nt.tas.gov.au (franklin-ext.nt.tas.gov.au [202.7.15.61]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA16881 for ; Thu, 18 Apr 2002 01:31:10 -0500 (CDT) Received: from franklin.nt.tas.gov.au (localhost [127.0.0.1]) by franklin.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g3I6V7117271 for ; Thu, 18 Apr 2002 16:31:07 +1000 (EST) Received: from dchs6305.dchs.tas.gov.au ([147.109.23.26]) by franklin.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g3I6V5517267 for ; Thu, 18 Apr 2002 16:31:05 +1000 (EST) Received: by DCHS6305 with Internet Mail Service (5.5.2653.19) id ; Thu, 18 Apr 2002 16:31:05 +1000 Message-ID: From: Causby Damian To: "'Linac-eng@plato.aristotle.net'" Subject: part data base Date: Thu, 18 Apr 2002 16:31:05 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Causby Damian To: "'Linac-eng@plato.aristotle.net'" Subject: part data base Date: Thu, 18 Apr 2002 16:31:05 +1000 Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi does anyone have a basic parts data base in access for the 2100 or 600 varian machines Thanks Damian Causby 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 18 13:59:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16yAZk-0006qD-00; Thu, 18 Apr 2002 13:59:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DAA421112F5; Thu, 18 Apr 2002 15:01:26 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA22972 for linac-eng-list; Thu, 18 Apr 2002 06:40:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA22968 for ; Thu, 18 Apr 2002 06:40:42 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 16yAGp-0006gx-00; Thu, 18 Apr 2002 12:40:11 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.0.037) id 3CA52A20001ED14C for linac-eng@plato.aristotle.net; Thu, 18 Apr 2002 12:40:11 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-4 6.0.037) id 3CBE957F00006A32 for linac-eng@plato.aristotle.net; Thu, 18 Apr 2002 12:40:11 +0100 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Thu, 18 Apr 2002 12:39:43 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Thu, 18 Apr 2002 12:39:22 +0100 From: "Chris Forrest" To: Subject: Forthcoming Varian HE Install? Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA22969 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 18 Apr 2002 12:39:22 +0100 From: "Chris Forrest" To: Subject: Forthcoming Varian HE Install? Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA22969 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk If anyone in the UK is currently going through the room design, build or (and!) installation stages of a Varian HE Linac scheme, I'd be grateful if they could drop me a line or give me a call. I'm particularly interested in the services aspect of room design and of any problems encountered, lessons learnt etc, perhaps with a view to a follow-up visit (Hence UK sites!) Thanks in anticipation of your assistance. Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 18 17:06:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16yDUx-0008Rt-00; Thu, 18 Apr 2002 17:06:59 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DF8621112F5; Thu, 18 Apr 2002 18:08:40 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA27407 for linac-eng-list; Thu, 18 Apr 2002 09:43:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA27403 for ; Thu, 18 Apr 2002 09:43:49 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id <2ZWTAZ39>; Thu, 18 Apr 2002 07:43:18 -0700 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: RE: Forthcoming Varian HE Install? Date: Thu, 18 Apr 2002 07:42:04 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: RE: Forthcoming Varian HE Install? Date: Thu, 18 Apr 2002 07:42:04 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We just had 2 high energy Varian linacs installed in a new department that was built (finally after all these years). When they designed the room, they forgot to put enough room in the modulator closet to allow for the installation of the line conditioner. There was enough room to physically put the device next to the modulator but it would not have met the electrical code space requirements and it would have made working on that end of the modulator extremely difficult if not impossible. It just so happened that my maintenance closet was sitting right next to the modulator. I'll bet you can guess what happened. Now I have nowhere to put the extended spares, ladder, and other maintenance equipment that I would like to have in the room. Jim Wilson Clinical Engineering Providence St.Vincent Hospital -----Original Message----- From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] Sent: Thursday, April 18, 2002 4:39 AM To: linac-eng@plato.aristotle.net Subject: Forthcoming Varian HE Install? If anyone in the UK is currently going through the room design, build or (and!) installation stages of a Varian HE Linac scheme, I'd be grateful if they could drop me a line or give me a call. I'm particularly interested in the services aspect of room design and of any problems encountered, lessons learnt etc, perhaps with a view to a follow-up visit (Hence UK sites!) Thanks in anticipation of your assistance. Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 18 18:46:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16yF3B-0000EF-00; Thu, 18 Apr 2002 18:46:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CA2851112F9; Thu, 18 Apr 2002 19:48:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA00849 for linac-eng-list; Thu, 18 Apr 2002 11:29:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA00845 for ; Thu, 18 Apr 2002 11:29:03 -0500 (CDT) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g3IGSgt15046; Thu, 18 Apr 2002 10:28:43 -0600 (MDT) Received: from cancerboard.ab.ca ([164.102.249.255]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g3IGSta00599; Thu, 18 Apr 2002 10:28:55 -0600 (MDT) Message-ID: <3CBEF51F.6409622B@cancerboard.ab.ca> Date: Thu, 18 Apr 2002 10:32:32 -0600 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Subject: Re: Forthcoming Varian HE Install? References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 18 Apr 2002 10:32:32 -0600 From: Len Johnson X-Accept-Language: en To: "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Subject: Re: Forthcoming Varian HE Install? Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Jim and everyone; How was it determined that a line conditioner was required? We have installed four HE clinacs and have yet found the need for line conditioners. Are you concerned with surges/spikes or brown-outs? The Varian Clinacs seem to be quite tolerant of line disturbances etc. The Installation Data Package that comes with the Clinacs is quite complete in describing what is required for the vault and control console areas. We have used these IDP's to assist with design and construction. Len "Wilson, Jim" wrote: > We just had 2 high energy Varian linacs installed in a new department that > was built (finally after all these years). When they designed the room, they > forgot to put enough room in the modulator closet to allow for the > installation of the line conditioner. There was enough room to physically > put the device next to the modulator but it would not have met the > electrical code space requirements and it would have made working on that > end of the modulator extremely difficult if not impossible. It just so > happened that my maintenance closet was sitting right next to the modulator. > I'll bet you can guess what happened. Now I have nowhere to put the extended > spares, ladder, and other maintenance equipment that I would like to have in > the room. > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > -----Original Message----- > From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] > Sent: Thursday, April 18, 2002 4:39 AM > To: linac-eng@plato.aristotle.net > Subject: Forthcoming Varian HE Install? > > If anyone in the UK is currently going through the room design, build or > (and!) installation stages of a Varian HE Linac scheme, I'd be grateful if > they could drop me a line or give me a call. > I'm particularly interested in the services aspect of room design and of any > problems encountered, lessons learnt etc, perhaps with a view to a follow-up > visit (Hence UK sites!) > > Thanks in anticipation of your assistance. > > Chris > > Chris Forrest > Technical Specialist > Medical Physics Service > Cookridge Hospital > Leeds LS16 6QB > UK > > Tel. +44 113 3924354 > Fax. +44 113 3924122 > > > **************************************************************************** > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are > not the intended addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, copy, disclose or > distribute to anyone the message or any information contained in the > message. If you have received this message in error, please immediately > advise the sender by reply email and delete the message. Thank you very > much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 18 19:19:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16yFZH-0000Fi-00; Thu, 18 Apr 2002 19:19:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 883641112F9; Thu, 18 Apr 2002 20:21:16 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA07516 for linac-eng-list; Thu, 18 Apr 2002 12:03:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA07506 for ; Thu, 18 Apr 2002 12:03:16 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id <2ZZZFCC2>; Thu, 18 Apr 2002 13:02:46 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAA8@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Chris Forrest'" , linac-eng@plato.aristotle.net Subject: RE: Forthcoming Varian HE Install? Date: Thu, 18 Apr 2002 13:02:43 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Chris Forrest'" , linac-eng@plato.aristotle.net Subject: RE: Forthcoming Varian HE Install? Date: Thu, 18 Apr 2002 13:02:43 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good lighting, switchable is top of the list. Outlets are next. I also insist on the reccommended room behind the machine, greatly assists service, and we move the SF6 bottle there. No machine/relay boxes in the ceiling, but at a convenient height on the wall. Terminal strips and marked wires inside, and all wiring goes through that box, then to the machine. Dropped ceilings over the machine are a must, better yet, the whole room. And make sure the walls are open at the top behind the ceiling. These last two items are necessary for future cable runs, etc. Conduits are not required here for communications. HVAC should be in ducts, not a plenum type ceiling, so no fireproof wire is needed. Water systems in a convenient closet nearby, outside the room. No HVAC equipment in the room or over the door where it would interfere with treatments during its repair. Dimmables should be incandescent, never seen a good fluoro type yet. Dont believe anyone who says conduits will be waterproof, if your water table is high. Visit the site daily to be sure it happens your way. Jerry > -----Original Message----- > From: Chris Forrest [SMTP:Chris.Forrest@leedsth.nhs.uk] > Sent: Thursday, April 18, 2002 7:39 AM > To: linac-eng@plato.aristotle.net > Subject: Forthcoming Varian HE Install? > > If anyone in the UK is currently going through the room design, build or > (and!) installation stages of a Varian HE Linac scheme, I'd be grateful if > they could drop me a line or give me a call. > I'm particularly interested in the services aspect of room design and of > any problems encountered, lessons learnt etc, perhaps with a view to a > follow-up visit (Hence UK sites!) > > Thanks in anticipation of your assistance. > > Chris > > > > Chris Forrest > Technical Specialist > Medical Physics Service > Cookridge Hospital > Leeds LS16 6QB > UK > > Tel. +44 113 3924354 > Fax. +44 113 3924122 > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 18 20:55:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16yH4F-0000Jr-00; Thu, 18 Apr 2002 20:55:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6AD5E1112F7; Thu, 18 Apr 2002 21:57:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA26906 for linac-eng-list; Thu, 18 Apr 2002 13:34:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA26902 for ; Thu, 18 Apr 2002 13:34:10 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Thu, 18 Apr 2002 13:34:56 -0500 Message-ID: From: "Turner, Guy" To: "'Len Johnson'" , "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Subject: RE: Forthcoming Varian HE Install? Date: Thu, 18 Apr 2002 13:34:49 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Len Johnson'" , "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Subject: RE: Forthcoming Varian HE Install? Date: Thu, 18 Apr 2002 13:34:49 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Our line conditioner kept burning up parts, so we finally just bypassed it. It's been running that way for 2 years without any problem. -----Original Message----- From: Len Johnson [mailto:lenj@CancerBoard.ab.ca] Sent: Thursday, April 18, 2002 11:33 AM To: Wilson, Jim Cc: 'Linac Bulletin Board Posting' Subject: Re: Forthcoming Varian HE Install? Jim and everyone; How was it determined that a line conditioner was required? We have installed four HE clinacs and have yet found the need for line conditioners. Are you concerned with surges/spikes or brown-outs? The Varian Clinacs seem to be quite tolerant of line disturbances etc. The Installation Data Package that comes with the Clinacs is quite complete in describing what is required for the vault and control console areas. We have used these IDP's to assist with design and construction. Len "Wilson, Jim" wrote: > We just had 2 high energy Varian linacs installed in a new department > that was built (finally after all these years). When they designed the > room, they forgot to put enough room in the modulator closet to allow > for the installation of the line conditioner. There was enough room to > physically put the device next to the modulator but it would not have > met the electrical code space requirements and it would have made > working on that end of the modulator extremely difficult if not > impossible. It just so happened that my maintenance closet was sitting > right next to the modulator. I'll bet you can guess what happened. Now > I have nowhere to put the extended spares, ladder, and other > maintenance equipment that I would like to have in the room. > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > -----Original Message----- > From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] > Sent: Thursday, April 18, 2002 4:39 AM > To: linac-eng@plato.aristotle.net > Subject: Forthcoming Varian HE Install? > > If anyone in the UK is currently going through the room design, build > or > (and!) installation stages of a Varian HE Linac scheme, I'd be grateful if > they could drop me a line or give me a call. > I'm particularly interested in the services aspect of room design and of any > problems encountered, lessons learnt etc, perhaps with a view to a follow-up > visit (Hence UK sites!) > > Thanks in anticipation of your assistance. > > Chris > > Chris Forrest > Technical Specialist > Medical Physics Service > Cookridge Hospital > Leeds LS16 6QB > UK > > Tel. +44 113 3924354 > Fax. +44 113 3924122 > > > ********************************************************************** > ****** > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are > not the intended addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, copy, disclose or > distribute to anyone the message or any information contained in the > message. If you have received this message in error, please immediately > advise the sender by reply email and delete the message. Thank you very > much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 19 11:35:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16yUnJ-0002hG-00; Fri, 19 Apr 2002 11:35:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 19D4E1112F7; Fri, 19 Apr 2002 12:36:43 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA29756 for linac-eng-list; Fri, 19 Apr 2002 04:10:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA29752 for ; Fri, 19 Apr 2002 04:10:25 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g3J99tp21871; Fri, 19 Apr 2002 04:09:55 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g3J99s821867; Fri, 19 Apr 2002 04:09:54 -0500 (CDT) Received: through eSafe SMTP Relay 1019137585; Fri Apr 19 04:09:54 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Fri, 19 Apr 2002 04:09:54 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E98@wmhmail.phci.org> From: "Williams, Rod" To: "'Len Johnson'" , "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Subject: RE: Forthcoming Varian HE Install? Date: Fri, 19 Apr 2002 04:09:53 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1E781.F796D7E0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Len Johnson'" , "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Subject: RE: Forthcoming Varian HE Install? Date: Fri, 19 Apr 2002 04:09:53 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1E781.F796D7E0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1E781.F796D7E0 Content-Type: text/plain; charset="iso-8859-1" I personally have mixed feelings about the line conditioners, the first 21ex came in with one and before a year was up the main ckt breaker had one phase burn up. At that time I discovered that quite a few of the many wire connections seemed loose and retorqued all the connections in the conditioner. Finding so many possible connections problems I called the local Power one rep and suggested that as part of a fist 3 month PM that they should retorque the connections in the conditioners. He agreed with me but said that the company did not pay for that service. So I took it on myself to do just that. I have not had a problem in the last 2.5 years, but I did have a line conditioner on a Ximatron that blew some of the fuse links on some of the SCRS and when the line dropped it went to about 530 volts on two phases. this is not good. this means one would have to monitor the line conditioners to make sure that all fuse links are intact. I guess after living with the line conditioners my opinion would be if you do absolutely need them they might be worth it, if your line is pretty good forget it. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Len Johnson [SMTP:lenj@CancerBoard.ab.ca] > Sent: Thursday, April 18, 2002 11:33 AM > To: Wilson, Jim > Cc: 'Linac Bulletin Board Posting' > Subject: Re: Forthcoming Varian HE Install? > > Jim and everyone; > How was it determined that a line conditioner was required? We have > installed > four HE clinacs and have yet found the need for line conditioners. Are you > concerned with surges/spikes or brown-outs? The Varian Clinacs seem to be > quite > tolerant of line disturbances etc. > The Installation Data Package that comes with the Clinacs is quite > complete in > describing what is required for the vault and control console areas. We > have > used these IDP's to assist with design and construction. > Len > > "Wilson, Jim" wrote: > > > We just had 2 high energy Varian linacs installed in a new department > that > > was built (finally after all these years). When they designed the room, > they > > forgot to put enough room in the modulator closet to allow for the > > installation of the line conditioner. There was enough room to > physically > > put the device next to the modulator but it would not have met the > > electrical code space requirements and it would have made working on > that > > end of the modulator extremely difficult if not impossible. It just so > > happened that my maintenance closet was sitting right next to the > modulator. > > I'll bet you can guess what happened. Now I have nowhere to put the > extended > > spares, ladder, and other maintenance equipment that I would like to > have in > > the room. > > > > Jim Wilson > > Clinical Engineering > > Providence St.Vincent Hospital > > > > -----Original Message----- > > From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] > > Sent: Thursday, April 18, 2002 4:39 AM > > To: linac-eng@plato.aristotle.net > > Subject: Forthcoming Varian HE Install? > > > > If anyone in the UK is currently going through the room design, build or > > (and!) installation stages of a Varian HE Linac scheme, I'd be grateful > if > > they could drop me a line or give me a call. > > I'm particularly interested in the services aspect of room design and of > any > > problems encountered, lessons learnt etc, perhaps with a view to a > follow-up > > visit (Hence UK sites!) > > > > Thanks in anticipation of your assistance. > > > > Chris > > > > Chris Forrest > > Technical Specialist > > Medical Physics Service > > Cookridge Hospital > > Leeds LS16 6QB > > UK > > > > Tel. +44 113 3924354 > > Fax. +44 113 3924122 > > > > > > > ************************************************************************** > ** > > This message is intended for the sole use of the individual and entity > to > > whom it is addressed, and may contain information that is privileged, > > confidential and exempt from disclosure under applicable law. If you > are > > not the intended addressee, nor authorized to receive for the intended > > addressee, you are hereby notified that you may not use, copy, disclose > or > > distribute to anyone the message or any information contained in the > > message. If you have received this message in error, please immediately > > advise the sender by reply email and delete the message. Thank you very > > much. ------_=_NextPart_001_01C1E781.F796D7E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Forthcoming Varian HE Install?

    I personally have = mixed feelings about the line conditioners, the first 21ex came in with = one and before a year was up the main ckt breaker had one phase burn = up. At that time I discovered that quite a few of the many wire = connections seemed loose and retorqued all the connections in the = conditioner. Finding so many possible connections problems I called the = local Power one rep and suggested that as part of a fist 3 month PM = that they should retorque the connections in the conditioners. He = agreed with me but said that the company did not pay for that service. = So I took it on myself to do just that. I have not had a problem in the = last 2.5 years, but I did have a line conditioner on a Ximatron that = blew some of the fuse links on some of the SCRS and when the line = dropped it went to about 530 volts on two phases. this is not good. = this means one would have to monitor the line conditioners to make sure = that all fuse links are intact. I guess after living with the line = conditioners my opinion would be if you do absolutely need them they = might be worth it, if your line is pretty good forget it.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Len Johnson = [SMTP:lenj@CancerBoard.ab.ca]
      Sent:   Thursday, April 18, 2002 11:33 AM
      To:     Wilson, Jim
      Cc:     'Linac Bulletin Board Posting'
      Subject:       = Re: Forthcoming Varian HE = Install?

      Jim and everyone;
      How was it determined that a line = conditioner was required? We have installed
      four HE clinacs and have yet found = the need for line conditioners. Are you
      concerned with surges/spikes or = brown-outs? The Varian Clinacs seem to be quite
      tolerant of line disturbances = etc.
      The Installation Data Package that = comes with the Clinacs is quite complete in
      describing what is required for the = vault and control console areas. We have
      used these IDP's to assist with = design and construction.
      Len

      "Wilson, Jim" wrote:

      > We just had 2 high energy Varian = linacs installed in a new department that
      > was built (finally after all = these years). When they designed the room, they
      > forgot to put enough room in the = modulator closet to allow for the
      > installation of the line = conditioner. There was enough room to physically
      > put the device next to the = modulator but it would not have met the
      > electrical code space = requirements and it would have made working on that
      > end of the modulator extremely = difficult if not impossible. It just so
      > happened that my maintenance = closet was sitting right next to the modulator.
      > I'll bet you can guess what = happened. Now I have nowhere to put the extended
      > spares, ladder, and other = maintenance equipment that I would like to have in
      > the room.
      >
      > Jim Wilson
      > Clinical Engineering
      > Providence St.Vincent = Hospital
      >
      > -----Original = Message-----
      > From: Chris Forrest [mailto:Chris.Forrest@leedst= h.nhs.uk]
      > Sent: Thursday, April 18, 2002 = 4:39 AM
      > To: = linac-eng@plato.aristotle.net
      > Subject: Forthcoming Varian HE = Install?
      >
      > If anyone in the UK is currently = going through the room design, build or
      > (and!) installation stages of a = Varian HE Linac scheme, I'd be grateful if
      > they could drop me a line or = give me a call.
      > I'm particularly interested in = the services aspect of room design and of any
      > problems encountered, lessons = learnt etc, perhaps with a view to a follow-up
      > visit (Hence UK sites!)
      >
      > Thanks in anticipation of your = assistance.
      >
      > Chris
      >
      > Chris Forrest
      > Technical Specialist
      > Medical Physics Service
      > Cookridge Hospital
      > Leeds LS16 6QB
      > UK
      >
      > Tel. +44 113 3924354
      > Fax. +44 113 3924122
      >
      >
      > = ************************************************************************= ****
      > This message is intended for the = sole use of the individual and entity to
      > whom it is addressed, and may = contain information that is privileged,
      > confidential and exempt from = disclosure under applicable law.  If you are
      > not the intended addressee, nor = authorized to receive for the intended
      > addressee, you are hereby = notified that you may not use, copy, disclose or
      > distribute to anyone the message = or any information contained in the
      > message.  If you have = received this message in error, please immediately
      > advise the sender by reply email = and delete the message.  Thank you very
      > much.

    ------_=_NextPart_001_01C1E781.F796D7E0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 22 18:35:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16zgnD-00066l-00; Mon, 22 Apr 2002 18:35:55 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9A3C211130A; Mon, 22 Apr 2002 19:37:18 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA28553 for linac-eng-list; Mon, 22 Apr 2002 11:01:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA28549 for ; Mon, 22 Apr 2002 11:01:52 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 22 Apr 2002 15:54:09 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Mon, 22 Apr 2002 09:01:20 -0700 Message-ID: <116B1F67502ED3119B2D00902740B816025C49F3@exchange3.inhs.org> From: "Bush, Thomas M." To: "'Len Johnson'" Cc: "'linac-eng@plato.aristotle.net'" Subject: RE: Forthcoming Varian HE Install? Date: Mon, 22 Apr 2002 09:01:15 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Len Johnson'" Cc: "'linac-eng@plato.aristotle.net'" Subject: RE: Forthcoming Varian HE Install? Date: Mon, 22 Apr 2002 09:01:15 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I want to agree with Len here. Varian lists a power conditioner in their documentation only to indicate that "IF" you need one this is the one that has been approved. 98% of all facilities do not need the conditioner and in fact it just gives you one more thing that can fail. I have canceled this item on all four of our 2100cd machines from the Varian quote and am quite happy that I did. Best regards, Tom Bush -----Original Message----- From: Len Johnson [mailto:lenj@CancerBoard.ab.ca] Sent: Thursday, April 18, 2002 9:33 AM To: Wilson, Jim Cc: 'Linac Bulletin Board Posting' Subject: Re: Forthcoming Varian HE Install? Jim and everyone; How was it determined that a line conditioner was required? We have installed four HE clinacs and have yet found the need for line conditioners. Are you concerned with surges/spikes or brown-outs? The Varian Clinacs seem to be quite tolerant of line disturbances etc. The Installation Data Package that comes with the Clinacs is quite complete in describing what is required for the vault and control console areas. We have used these IDP's to assist with design and construction. Len "Wilson, Jim" wrote: > We just had 2 high energy Varian linacs installed in a new department that > was built (finally after all these years). When they designed the room, they > forgot to put enough room in the modulator closet to allow for the > installation of the line conditioner. There was enough room to physically > put the device next to the modulator but it would not have met the > electrical code space requirements and it would have made working on that > end of the modulator extremely difficult if not impossible. It just so > happened that my maintenance closet was sitting right next to the modulator. > I'll bet you can guess what happened. Now I have nowhere to put the extended > spares, ladder, and other maintenance equipment that I would like to have in > the room. > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > -----Original Message----- > From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] > Sent: Thursday, April 18, 2002 4:39 AM > To: linac-eng@plato.aristotle.net > Subject: Forthcoming Varian HE Install? > > If anyone in the UK is currently going through the room design, build or > (and!) installation stages of a Varian HE Linac scheme, I'd be grateful if > they could drop me a line or give me a call. > I'm particularly interested in the services aspect of room design and of any > problems encountered, lessons learnt etc, perhaps with a view to a follow-up > visit (Hence UK sites!) > > Thanks in anticipation of your assistance. > > Chris > > Chris Forrest > Technical Specialist > Medical Physics Service > Cookridge Hospital > Leeds LS16 6QB > UK > > Tel. +44 113 3924354 > Fax. +44 113 3924122 > > > **************************************************************************** > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are > not the intended addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, copy, disclose or > distribute to anyone the message or any information contained in the > message. If you have received this message in error, please immediately > advise the sender by reply email and delete the message. Thank you very > much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 22 23:33:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16zlQm-0006PV-00; Mon, 22 Apr 2002 23:33:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AEF561112F2; Tue, 23 Apr 2002 00:34:26 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA10785 for linac-eng-list; Mon, 22 Apr 2002 16:03:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA10781 for ; Mon, 22 Apr 2002 16:03:20 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id <2ZWTB82V>; Mon, 22 Apr 2002 14:02:49 -0700 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL2100 HVPS Circuit Breaker Date: Mon, 22 Apr 2002 14:01:31 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL2100 HVPS Circuit Breaker Date: Mon, 22 Apr 2002 14:01:31 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk When we power down our machine, the HVPS circuit breaker pops. I changed one of the relays that was in the circuit because of heavily pitted contacts but that did not cure the problem. In tracing the circuit around, it appears that the relay coil goes back to a battery in the auxilliary chassis. I don't recall any battery. Does anyone have a comment on this? Thanks!! Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 05:01:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16zqYR-0006a6-00; Tue, 23 Apr 2002 05:01:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 156D21112F2; Tue, 23 Apr 2002 06:02:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id VAA19279 for linac-eng-list; Mon, 22 Apr 2002 21:44:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA19275 for ; Mon, 22 Apr 2002 21:44:24 -0500 (CDT) Received: (qmail 76152 invoked from network); 23 Apr 2002 01:58:45 -0000 Received: from unknown (HELO webmaill05) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 23 Apr 2002 01:58:45 -0000 Message-ID: <4074340.1019527737530.JavaMail.root@webmaill05> Date: Tue, 23 Apr 2002 10:08:57 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: RE: Forthcoming Varian HE Install? Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 23 Apr 2002 10:08:57 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: RE: Forthcoming Varian HE Install? Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk It is not a must, only if your mains voltage fluctuates very quickly (in terms of seconds). The Yield servo in the low energy machines, and the PFN servo in the high energy machines are capable of maintaining a constant energy output with slow incoming voltage variation. Jonathan Chan -----Original Message----- From: "Williams, Rod" Sent: Fri Apr 19 17:09:53 HKT 2002 To: 'Len Johnson' "Wilson, Jim" Cc: 'Len Johnson' "Wilson, Jim" Subject: RE: Forthcoming Varian HE Install? I personally have mixed feelings about the line conditioners, the first 21ex came in with one and before a year was up the main ckt breaker had one phase burn up. At that time I discovered that quite a few of the many wire connections seemed loose and retorqued all the connections in the conditioner. Finding so many possible connections problems I called the local Power one rep and suggested that as part of a fist 3 month PM that they should retorque the connections in the conditioners. He agreed with me but said that the company did not pay for that service. So I took it on myself to do just that. I have not had a problem in the last 2.5 years, but I did have a line conditioner on a Ximatron that blew some of the fuse links on some of the SCRS and when the line dropped it went to about 530 volts on two phases. this is not good. this means one would have to monitor the line conditioners to make sure that all fuse links are intact. I guess after living with the line conditioners my opinion would be if you do absolutely need them they might be worth it, if your line is pretty good forget it. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Len Johnson [SMTP:lenj@CancerBoard.ab.ca] > Sent: Thursday, April 18, 2002 11:33 AM > To: Wilson, Jim > Cc: 'Linac Bulletin Board Posting' > Subject: Re: Forthcoming Varian HE Install? > > Jim and everyone; > How was it determined that a line conditioner was required? We have > installed > four HE clinacs and have yet found the need for line conditioners. Are you > concerned with surges/spikes or brown-outs? The Varian Clinacs seem to be > quite > tolerant of line disturbances etc. > The Installation Data Package that comes with the Clinacs is quite > complete in > describing what is required for the vault and control console areas. We > have > used these IDP's to assist with design and construction. > Len > > "Wilson, Jim" wrote: > > > We just had 2 high energy Varian linacs installed in a new department > that > > was built (finally after all these years). When they designed the room, > they > > forgot to put enough room in the modulator closet to allow for the > > installation of the line conditioner. There was enough room to > physically > > put the device next to the modulator but it would not have met the > > electrical code space requirements and it would have made working on > that > > end of the modulator extremely difficult if not impossible. It just so > > happened that my maintenance closet was sitting right next to the > modulator. > > I'll bet you can guess what happened. Now I have nowhere to put the > extended > > spares, ladder, and other maintenance equipment that I would like to > have in > > the room. > > > > Jim Wilson > > Clinical Engineering > > Providence St.Vincent Hospital > > > > -----Original Message----- > > From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] > > Sent: Thursday, April 18, 2002 4:39 AM > > To: linac-eng@plato.aristotle.net > > Subject: Forthcoming Varian HE Install? > > > > If anyone in the UK is currently going through the room design, build or > > (and!) installation stages of a Varian HE Linac scheme, I'd be grateful > if > > they could drop me a line or give me a call. > > I'm particularly interested in the services aspect of room design and of > any > > problems encountered, lessons learnt etc, perhaps with a view to a > follow-up > > visit (Hence UK sites!) > > > > Thanks in anticipation of your assistance. > > > > Chris > > > > Chris Forrest > > Technical Specialist > > Medical Physics Service > > Cookridge Hospital > > Leeds LS16 6QB > > UK > > > > Tel. +44 113 3924354 > > Fax. +44 113 3924122 > > > > > > > ************************************************************************** > ** > > This message is intended for the sole use of the individual and entity > to > > whom it is addressed, and may contain information that is privileged, > > confidential and exempt from disclosure under applicable law. If you > are > > not the intended addressee, nor authorized to receive for the intended > > addressee, you are hereby notified that you may not use, copy, disclose > or > > distribute to anyone the message or any information contained in the > > message. If you have received this message in error, please immediately > > advise the sender by reply email and delete the message. Thank you very > > much. 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 05:59:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16zrSi-0006c8-00; Tue, 23 Apr 2002 05:59:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 47EC41112F2; Tue, 23 Apr 2002 07:00:49 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA21173 for linac-eng-list; Mon, 22 Apr 2002 22:46:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id WAA21169 for ; Mon, 22 Apr 2002 22:46:16 -0500 (CDT) Received: (qmail 24685 invoked from network); 23 Apr 2002 03:35:32 -0000 Received: from unknown (HELO webmail02) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 23 Apr 2002 03:35:32 -0000 Message-ID: <16699692.1019532856339.JavaMail.root@webmail02> Date: Tue, 23 Apr 2002 11:34:16 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Varian's Mill. MLC Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 23 Apr 2002 11:34:16 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Varian's Mill. MLC Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk For the Mark series MLC, I love to use the mdiag.exe program for testing. Say, I can exercise all leaves (alt-e), and I can see if any leaf is moving slower than the rest. And also from the secondary and the primary leaf positions while the leaf(s) is (are) moving, I can judge what is wrong with my MLC. Once, the primary feedback of a particular leaf was always minus while it was being exercising. And the motor's encoders funcitoned properly. Then I could determine a faulty head transceiver board. Has anyone out there already written some scripts for testing the millenium MLC? (By the way, varian stops selling those FPGAs. Any idea to fix it other than buying a very expensive board??) Regards, Jonathan Chan Queen Mary Hospital 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 15:00:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 16zzuZ-00035i-00; Tue, 23 Apr 2002 15:00:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2B5E31112F2; Tue, 23 Apr 2002 16:02:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA02322 for linac-eng-list; Tue, 23 Apr 2002 07:40:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02318 for ; Tue, 23 Apr 2002 07:40:44 -0500 (CDT) From: Bob.Tonks@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g3NCeBw22613 for ; Tue, 23 Apr 2002 08:40:11 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BA4.0045981F ; Tue, 23 Apr 2002 08:40:09 -0400 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256BA4.00459787.00@mail.lrcc.on.ca> Date: Tue, 23 Apr 2002 08:40:07 -0400 Subject: Varian 2100C serial# 1376 - Intermittant power down Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Bob.Tonks@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Tue, 23 Apr 2002 08:40:07 -0400 Subject: Varian 2100C serial# 1376 - Intermittant power down Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Over the past 4 or 5 days our machine has occasionally shut down but K3 and K4 remain held in by the battery so to restart the machine you just need to press the "START" button on the modulator. This means that the emergency off chain is intact. K1 and K2, which are part of the start circuit, will open removing power to all areas of the machine. ContpwrB is used to start K1 and K2. Once CB7 tripped out of 8 or 10 occurances, this is a 10A breaker and we have measured no more than 1.9A on phase A and 2.3A on phase B. So far we have replaced CB7, K1, K2, K3 and K4 with no luck. Hope someone has seen this before, Thanks in advance , Bob Tonks London Regional Cancer Centre London, Ontario, Canada 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 16:08:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1700xt-0003c4-00; Tue, 23 Apr 2002 16:08:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A47FA1112F2; Tue, 23 Apr 2002 17:09:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA04088 for linac-eng-list; Tue, 23 Apr 2002 08:46:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server108.phsa.ca (mail.bccancer.bc.ca [209.139.228.218]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA04084 for ; Tue, 23 Apr 2002 08:46:44 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254] unverified) by server108.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Tue, 23 Apr 2002 06:48:26 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Tue, 23 Apr 2002 06:42:40 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA001FE2CE3@SERVER20> From: Don Melsness To: "'Bob.Tonks@lrcc.on.ca'" , linac-eng@plato.aristotle.net Subject: RE: Varian 2100C serial# 1376 - Intermittant power down Date: Tue, 23 Apr 2002 06:46:46 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 23 Apr 2002 13:48:26.0917 (UTC) FILETIME=[8B4A1D50:01C1EACD] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Don Melsness To: "'Bob.Tonks@lrcc.on.ca'" , linac-eng@plato.aristotle.net Subject: RE: Varian 2100C serial# 1376 - Intermittant power down Date: Tue, 23 Apr 2002 06:46:46 -0700 Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 23 Apr 2002 13:48:26.0917 (UTC) FILETIME=[8B4A1D50:01C1EACD] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Bob, Had a similar intermittent problem with a 2100C awhile back. Turned out to be a faulty UVR in the main disconnect. Don Melsness Vancouver Cancer Clinic -----Original Message----- From: Bob.Tonks@lrcc.on.ca [mailto:Bob.Tonks@lrcc.on.ca] Sent: Tuesday, April 23, 2002 5:40 AM To: linac-eng@plato.aristotle.net Subject: Varian 2100C serial# 1376 - Intermittant power down Over the past 4 or 5 days our machine has occasionally shut down but K3 and K4 remain held in by the battery so to restart the machine you just need to press the "START" button on the modulator. This means that the emergency off chain is intact. K1 and K2, which are part of the start circuit, will open removing power to all areas of the machine. ContpwrB is used to start K1 and K2. Once CB7 tripped out of 8 or 10 occurances, this is a 10A breaker and we have measured no more than 1.9A on phase A and 2.3A on phase B. So far we have replaced CB7, K1, K2, K3 and K4 with no luck. Hope someone has seen this before, Thanks in advance , Bob Tonks London Regional Cancer Centre London, Ontario, Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 16:25:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1701Ev-0003lh-00; Tue, 23 Apr 2002 16:25:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B17B11112F2; Tue, 23 Apr 2002 17:27:12 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA04690 for linac-eng-list; Tue, 23 Apr 2002 09:06:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA04686 for ; Tue, 23 Apr 2002 09:06:05 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g3NE5Rf15803; Tue, 23 Apr 2002 09:05:27 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g3NE5R815799; Tue, 23 Apr 2002 09:05:27 -0500 (CDT) Received: through eSafe SMTP Relay 1019137585; Tue Apr 23 09:05:27 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Tue, 23 Apr 2002 09:05:27 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5E9E@wmhmail.phci.org> From: "Williams, Rod" To: "'Wilson, Jim'" , "'Linac Bulletin Board Posting'" Subject: RE: Varian CL2100 HVPS Circuit Breaker Date: Tue, 23 Apr 2002 09:05:23 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1EACF.E91F3170" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Wilson, Jim'" , "'Linac Bulletin Board Posting'" Subject: RE: Varian CL2100 HVPS Circuit Breaker Date: Tue, 23 Apr 2002 09:05:23 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1EACF.E91F3170" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1EACF.E91F3170 Content-Type: text/plain Hi Jim The batteries, two of them are located on the Catchall panel. on drawing #1100270, they are charged by a ckt on the backconnected mother board. I have heard that the charger ckt can fail on the BC board but I don't know what fails as mine have not gone out yet. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Wilson, Jim [SMTP:JWilson3@providence.org] > Sent: Monday, April 22, 2002 4:02 PM > To: 'Linac Bulletin Board Posting' > Subject: Varian CL2100 HVPS Circuit Breaker > > When we power down our machine, the HVPS circuit breaker pops. I changed > one > of the relays that was in the circuit because of heavily pitted contacts > but > that did not cure the problem. In tracing the circuit around, it appears > that the relay coil goes back to a battery in the auxilliary chassis. I > don't recall any battery. Does anyone have a comment on this? Thanks!! > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > > ************************************************************************** > ** > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are > not the intended addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, copy, disclose or > distribute to anyone the message or any information contained in the > message. If you have received this message in error, please immediately > advise the sender by reply email and delete the message. Thank you very > much. > ------_=_NextPart_001_01C1EACF.E91F3170 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Varian CL2100 HVPS Circuit Breaker

    Hi Jim

    The batteries, two = of them are located on the Catchall panel. on drawing #1100270, they = are charged by a ckt on the backconnected mother board. I have heard = that the charger ckt can fail on the BC board but I don't know what = fails as mine have not gone out yet.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Wilson, Jim = [SMTP:JWilson3@providence.org]
      Sent:   Monday, April 22, 2002 4:02 PM
      To:     'Linac Bulletin Board Posting'
      Subject:       = Varian CL2100 HVPS Circuit = Breaker

      When we power down our machine, the = HVPS circuit breaker pops. I changed one
      of the relays that was in the circuit = because of heavily pitted contacts but
      that did not cure the problem. In = tracing the circuit around, it appears
      that the relay coil goes back to a = battery in the auxilliary chassis. I
      don't recall any battery. Does anyone = have a comment on this? Thanks!!

      Jim Wilson
      Clinical Engineering
      Providence St.Vincent Hospital

       
      *********************************************************= *******************
      This message is intended for the sole = use of the individual and entity to
      whom it is addressed, and may contain = information that is privileged,
      confidential and exempt from = disclosure under applicable law.  If you are
      not the intended addressee, nor = authorized to receive for the intended
      addressee, you are hereby notified = that you may not use, copy, disclose or
      distribute to anyone the message or = any information contained in the
      message.  If you have received = this message in error, please immediately
      advise the sender by reply email and = delete the message.  Thank you very
      much.        &nbs= p;           &nbs= p;           &nbs= p;           &nbs= p;           &nbs= p;           &nbs= p; 

    ------_=_NextPart_001_01C1EACF.E91F3170-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 16:33:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1701MH-0003o3-00; Tue, 23 Apr 2002 16:33:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 45AF11112F2; Tue, 23 Apr 2002 17:34:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA04888 for linac-eng-list; Tue, 23 Apr 2002 09:13:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA04884 for ; Tue, 23 Apr 2002 09:13:48 -0500 (CDT) From: Bob.Tonks@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g3NED6w10910; Tue, 23 Apr 2002 10:13:06 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BA4.004E1A0A ; Tue, 23 Apr 2002 10:13:04 -0400 X-Lotus-FromDomain: LRCC To: Don Melsness , linac-eng@plato.aristotle.net Message-ID: <85256BA4.004E18DB.00@mail.lrcc.on.ca> Date: Tue, 23 Apr 2002 10:13:01 -0400 Subject: RE: Varian 2100C serial# 1376 - Intermittant power down Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Bob.Tonks@lrcc.on.ca X-Lotus-FromDomain: LRCC To: Don Melsness , linac-eng@plato.aristotle.net Date: Tue, 23 Apr 2002 10:13:01 -0400 Subject: RE: Varian 2100C serial# 1376 - Intermittant power down Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk i just went down and checked the UVB that feeds the machine and found a burnt connection so I am about to change it. Thanks for the help, Bob Tonks 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 17:22:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17027I-0004GL-00; Tue, 23 Apr 2002 17:22:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2CA291112F2; Tue, 23 Apr 2002 18:23:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA07066 for linac-eng-list; Tue, 23 Apr 2002 09:58:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA07059 for ; Tue, 23 Apr 2002 09:58:36 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id <2ZWTCCZM>; Tue, 23 Apr 2002 07:58:05 -0700 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: RE: Varian CL2100 HVPS Circuit Breaker Date: Tue, 23 Apr 2002 07:56:45 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: RE: Varian CL2100 HVPS Circuit Breaker Date: Tue, 23 Apr 2002 07:56:45 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thank you all for your quick responses. I feel like I am the only one in the world who did not know that the couch emergency batteries were used for this purpose also. It was not too long ago that I checked the the emergency couch function, so maybe there is a related wiring problem. Perhaps the batteries have taken a recent dive and I just didn't realize it. Thanks again. -----Original Message----- From: Wilson, Jim [mailto:JWilson3@providence.org] Sent: Monday, April 22, 2002 2:02 PM To: 'Linac Bulletin Board Posting' Subject: Varian CL2100 HVPS Circuit Breaker When we power down our machine, the HVPS circuit breaker pops. I changed one of the relays that was in the circuit because of heavily pitted contacts but that did not cure the problem. In tracing the circuit around, it appears that the relay coil goes back to a battery in the auxilliary chassis. I don't recall any battery. Does anyone have a comment on this? Thanks!! Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 17:43:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1702S9-0004RJ-00; Tue, 23 Apr 2002 17:43:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8DC1A1112F2; Tue, 23 Apr 2002 18:44:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA08284 for linac-eng-list; Tue, 23 Apr 2002 10:29:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA08280 for ; Tue, 23 Apr 2002 10:29:01 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Tue, 23 Apr 2002 11:28:30 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAAB@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Bob.Tonks@lrcc.on.ca'" , linac-eng@plato.aristotle.net Subject: RE: Varian 2100C serial# 1376 - Intermittant power down Date: Tue, 23 Apr 2002 11:28:25 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Bob.Tonks@lrcc.on.ca'" , linac-eng@plato.aristotle.net Subject: RE: Varian 2100C serial# 1376 - Intermittant power down Date: Tue, 23 Apr 2002 11:28:25 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Try tapping on the small relays on the PCB in the modulator. I have had a couple of them go microphonic, ie, get sensitive to vibration. Have also seen a breaker go bad, normal I through it, but it tripped a few times per week. I am not sure, but I think it was the left one in the modulator. C3 machines. Jerry > -----Original Message----- > From: Bob.Tonks@lrcc.on.ca [SMTP:Bob.Tonks@lrcc.on.ca] > Sent: Tuesday, April 23, 2002 8:40 AM > To: linac-eng@plato.aristotle.net > Subject: Varian 2100C serial# 1376 - Intermittant power down > > > > Over the past 4 or 5 days our machine has occasionally shut down but K3 > and K4 > remain held in by the battery so to restart the machine you just need to > press > the "START" button on the modulator. This means that the emergency off > chain > is intact. K1 and K2, which are part of the start circuit, will open > removing > power to all areas of the machine. ContpwrB is used to start K1 and K2. > Once > CB7 tripped out of 8 or 10 occurances, this is a 10A breaker and we have > measured no more than 1.9A on phase A and 2.3A on phase B. So far we have > replaced CB7, K1, K2, K3 and K4 with no luck. > > Hope someone has seen this before, > > Thanks in advance , > > Bob Tonks > London Regional Cancer Centre > London, Ontario, Canada > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 17:55:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1702dv-0004Vf-00; Tue, 23 Apr 2002 17:55:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A4F0C1112F2; Tue, 23 Apr 2002 18:57:05 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA08693 for linac-eng-list; Tue, 23 Apr 2002 10:40:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from coventry.ac.uk (root@SMTP.Services.coventry.ac.uk [193.61.107.150]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA08689 for ; Tue, 23 Apr 2002 10:40:48 -0500 (CDT) Received: from OliverHaas (n434-2.mis.coventry.ac.uk [194.66.45.123]) by coventry.ac.uk (8.12.2/8.12.2) with SMTP id g3NFS5Ck002200; Tue, 23 Apr 2002 16:28:05 +0100 Message-ID: <015401c1eadd$2008e390$7b2d42c2@OliverHaas> From: "Olivier Haas" To: , "Don Melsness" , References: <85256BA4.004E18DB.00@mail.lrcc.on.ca> Subject: linac engineer Date: Tue, 23 Apr 2002 16:39:53 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 X-MailScanner: Found to be clean Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Olivier Haas" To: , "Don Melsness" , Subject: linac engineer Date: Tue, 23 Apr 2002 16:39:53 +0100 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 X-MailScanner: Found to be clean Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk ELECTRICAL/CONTROL ENGINEER WITH LINAC EXPERIENCE split site: Control Theory and Applications Centre, Coventry, UK & Elekta Oncology Systems Ltd, Crawley, UK The Control Theory and Applications Centre within the School of Mathematical and Information Sciences is looking for an enthusiastic individual to work on a project, which is a result of the partnership between Elekta Oncology Systems Ltd and Coventry University's Control Theory and Applications Centre (CTAC). The aim of the project is to develop an automated patient support system control algorithm that will provide precise control of the patient position with respect to the X-ray beam. You will be required to undertake duties as a Teaching Company Associate which will include, to design, develop, test and demonstrate a control system, produce a design manual, liase with staff and attend project review meetings. You should hold an appropriate degree at graduate or masters level in the following areas, robotics, engineering or physics. Good programming skills including experience with matlab and simulink, together with sound mathematical knowledge and related skills will be an advantage. You should be an excellent communicator, have the ability to use your own initiative and work effectively within a team. You should be willing to travel within the UK and abroad. The work will be carried out in CTAC, Coventry for the first year and in Elekta, Crawley for the second year. Ref No: CA59/02 CLOSING DATE: 3 MAY 2002 For further details and an application form please telephone the Personnel Department on 024 7688 8120, or minicom 024 7688 8100, or e-mail futures.per@coventry.ac.uk Website: http://www.coventry.ac.uk/structur/vacancy or http://www.ctac.mis.coventry.ac.uk/ We would particularly welcome applications from black/ethnic minority groups and people with disabilities who are under-represented in the university. Olivier Haas, PhD Leader Biomedical Engineering Systems Group Control Theory and Applications Centre Coventry University, Coventry CV1 5FB, UK (NEW NUMBER!!)Tel +44 (0)2476887658 Fax +44(0)2476888052 http://www.ctac.mis.coventry.ac.uk/ 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 18:42:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1703NC-0004eD-00; Tue, 23 Apr 2002 18:42:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A7FF31112F3; Tue, 23 Apr 2002 19:43:52 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA10114 for linac-eng-list; Tue, 23 Apr 2002 11:18:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA10110 for ; Tue, 23 Apr 2002 11:18:36 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id <2ZZZGPLD>; Tue, 23 Apr 2002 12:18:06 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAAC@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Wilson, Jim'" , "'Linac Bulletin Board Posting'" Subject: RE: Varian CL2100 HVPS Circuit Breaker Date: Tue, 23 Apr 2002 12:17:56 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Wilson, Jim'" , "'Linac Bulletin Board Posting'" Subject: RE: Varian CL2100 HVPS Circuit Breaker Date: Tue, 23 Apr 2002 12:17:56 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk There is an emergency battery pack which holds the relays, but its main function is to operate the couch vertical drive and longitudinal brake, with the emergency pendant in the stand. It should be checked frequently, we do once per month. If the emergency pendant works, you don't need two people to reset the breaker, as the battery will hold in the relays when the start button is pushed. then you reset the breaker, then hit the start again. > -----Original Message----- > From: Wilson, Jim [SMTP:JWilson3@providence.org] > Sent: Monday, April 22, 2002 5:02 PM > To: 'Linac Bulletin Board Posting' > Subject: Varian CL2100 HVPS Circuit Breaker > > When we power down our machine, the HVPS circuit breaker pops. I changed > one > of the relays that was in the circuit because of heavily pitted contacts > but > that did not cure the problem. In tracing the circuit around, it appears > that the relay coil goes back to a battery in the auxilliary chassis. I > don't recall any battery. Does anyone have a comment on this? Thanks!! > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > > ************************************************************************** > ** > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are > not the intended addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, copy, disclose or > distribute to anyone the message or any information contained in the > message. If you have received this message in error, please immediately > advise the sender by reply email and delete the message. Thank you very > much. > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 18:56:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1703ap-0004gg-00; Tue, 23 Apr 2002 18:56:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2494E1112F2; Tue, 23 Apr 2002 19:57:57 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA11076 for linac-eng-list; Tue, 23 Apr 2002 11:43:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server108.phsa.ca (mail.bccancer.bc.ca [209.139.228.218]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA11072 for ; Tue, 23 Apr 2002 11:43:09 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254] unverified) by server108.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Tue, 23 Apr 2002 09:44:52 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Tue, 23 Apr 2002 09:39:06 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA007A4F5E2@SERVER20> From: "Patrick Wong (VICC)" To: Linac-Eng@plato.aristotle.net Subject: Microswitch for hand pendant Date: Tue, 23 Apr 2002 09:43:10 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 23 Apr 2002 16:44:52.0988 (UTC) FILETIME=[31145BC0:01C1EAE6] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" To: Linac-Eng@plato.aristotle.net Subject: Microswitch for hand pendant Date: Tue, 23 Apr 2002 09:43:10 -0700 Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 23 Apr 2002 16:44:52.0988 (UTC) FILETIME=[31145BC0:01C1EAE6] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi to all, Dose any one know where I can order the Burgess microswitch used on Varian hand pendant switch assembly PCB. these microswitch are not very reliably and fail after a year. The switch pendant assembly only contain two microswitch and two miniature relays, it can be fix by replacing the faulty components instead of order from Varian for the whole PCB assembly. Any information will be greatly appreciated. Patrick Wong C.T. Radiation Therapy Service Technologist Dept. of Medical Physics Vancouver Island Cancer Centre 2410 Lee Avenue Victoria, British Columbia Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 21:20:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1705pf-0004rA-00; Tue, 23 Apr 2002 21:20:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 060071112F2; Tue, 23 Apr 2002 22:21:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA15319 for linac-eng-list; Tue, 23 Apr 2002 14:04:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA15315 for ; Tue, 23 Apr 2002 14:04:53 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KGWO3DQDIE002UYV@biomed.med.yale.edu> for Linac-Eng@plato.aristotle.net; Tue, 23 Apr 2002 15:02:43 -0400 (EDT) Date: Tue, 23 Apr 2002 15:00:55 -0400 From: "Peter E. Vitali" Subject: Re: Microswitch for hand pendant To: "Patrick Wong (VICC)" Cc: Linac-Eng@plato.aristotle.net Message-id: <3CC5AEE7.2EFEEC28@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <6BAF4D075F07D411B30900508B94CBA007A4F5E2@SERVER20> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 23 Apr 2002 15:00:55 -0400 From: "Peter E. Vitali" Subject: Re: Microswitch for hand pendant To: "Patrick Wong (VICC)" Cc: Linac-Eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Patrick: Burgess has a web site at: www.saia-burgess.com You can get contact information from them and probably the name of a local distributor. Try Technical Options of Georgia. 1-800-755-9640 Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 23 22:00:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1706Sx-0004t4-00; Tue, 23 Apr 2002 22:00:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DF11E1112F3; Tue, 23 Apr 2002 23:02:00 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA16594 for linac-eng-list; Tue, 23 Apr 2002 14:46:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc_nt ([207.35.220.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA16590 for ; Tue, 23 Apr 2002 14:46:49 -0500 (CDT) Received: by KRCCMAIL with Internet Mail Service (5.5.2653.19) id ; Tue, 23 Apr 2002 15:45:37 -0400 Message-ID: From: "Kloster, Stephen" To: "'Patrick Wong (VICC)'" , Linac-Eng@plato.aristotle.net Subject: RE: Microswitch for hand pendant Date: Tue, 23 Apr 2002 15:45:35 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1EAFF.6F758F60" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kloster, Stephen" To: "'Patrick Wong (VICC)'" , Linac-Eng@plato.aristotle.net Subject: RE: Microswitch for hand pendant Date: Tue, 23 Apr 2002 15:45:35 -0400 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1EAFF.6F758F60" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1EAFF.6F758F60 Content-Type: text/plain; charset="iso-8859-1" Hi Patrick, I bought some of these a while back. They are F1T8 switches. Here is the contact information I have, although the telephone number might not be current, they've been playing around with the exchanges in Toronto over the last few years. Also I did not record information for minimum order. etc, sorry. Burgess Switch Co. 125-4800 Shepard Ave E. Scarborough, On M1S 4N5 416-299-0852 Regards, Steve Kloster Kingston RCC -----Original Message----- From: Patrick Wong (VICC) [mailto:PWong@bccancer.bc.ca] Sent: Tuesday, April 23, 2002 12:43 PM To: Linac-Eng@plato.aristotle.net Subject: Microswitch for hand pendant Hi to all, Dose any one know where I can order the Burgess microswitch used on Varian hand pendant switch assembly PCB. these microswitch are not very reliably and fail after a year. The switch pendant assembly only contain two microswitch and two miniature relays, it can be fix by replacing the faulty components instead of order from Varian for the whole PCB assembly. Any information will be greatly appreciated. Patrick Wong C.T. Radiation Therapy Service Technologist Dept. of Medical Physics Vancouver Island Cancer Centre 2410 Lee Avenue Victoria, British Columbia Canada ------_=_NextPart_001_01C1EAFF.6F758F60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Microswitch for hand pendant

    Hi Patrick,
    I bought some of these a while back. They are F1T8 = switches. Here is the contact information I have, although the = telephone number might not be current, they've been playing around with = the exchanges in Toronto over the last few years. Also I did not record = information for minimum order. etc, sorry.

    Burgess Switch Co.
    125-4800 Shepard Ave E.
    Scarborough, On
    M1S 4N5

    416-299-0852

    Regards,
    Steve Kloster
    Kingston RCC

    -----Original Message-----
    From: Patrick Wong (VICC) [mailto:PWong@bccancer.bc.ca]
    Sent: Tuesday, April 23, 2002 12:43 PM
    To: Linac-Eng@plato.aristotle.net
    Subject: Microswitch for hand pendant


    Hi to all,
    Dose any one know where I can order the Burgess = microswitch used on Varian
    hand pendant switch
    assembly PCB. these microswitch are not very = reliably and fail after a year.
    The switch pendant assembly only contain two = microswitch and two miniature
    relays, it can be fix by replacing the faulty = components instead of order
    from Varian for the whole PCB assembly.
    Any information will be greatly appreciated.

    Patrick Wong C.T.
    Radiation Therapy Service Technologist
    Dept. of Medical Physics
    Vancouver Island Cancer Centre
    2410 Lee Avenue
    Victoria, British Columbia
    Canada

    ------_=_NextPart_001_01C1EAFF.6F758F60-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 24 02:56:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 170B4w-00054Y-00; Wed, 24 Apr 2002 02:56:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2B7CB1112F2; Wed, 24 Apr 2002 03:57:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA11074 for linac-eng-list; Tue, 23 Apr 2002 19:40:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA11070 for ; Tue, 23 Apr 2002 19:40:47 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g3O0eHw26100 for ; Tue, 23 Apr 2002 20:40:17 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BA5.0003AE0A ; Tue, 23 Apr 2002 20:40:11 -0400 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256BA5.0003ACD6.00@mail.lrcc.on.ca> Date: Tue, 23 Apr 2002 20:40:08 -0400 Subject: Varian H/C switches Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Tue, 23 Apr 2002 20:40:08 -0400 Subject: Varian H/C switches Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk My apologies if anyone has received this info a couple of times because I have had a problem contacting the list. There are two types of switches used depending on the vintage of the hand control F1T8GP C$11.81 WHITE ONES USED ON OLDER STYLE H/C F1NST8GP C$9.50 TINY BLACK SWITCHES USED ON NEWER STYLE H/C RANDY 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 24 18:53:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 170Q1H-0002gq-00; Wed, 24 Apr 2002 18:53:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DDAC31112F3; Wed, 24 Apr 2002 19:54:40 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA03409 for linac-eng-list; Wed, 24 Apr 2002 11:33:40 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA03405 for ; Wed, 24 Apr 2002 11:33:37 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id MAA27181; Wed, 24 Apr 2002 12:27:48 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma027028; Wed, 24 Apr 02 12:27:07 -0400 Subject: Pendant cables To: linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Wed, 24 Apr 2002 11:32:35 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 04/24/2002 11:32:37 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Pendant cables To: linac-eng@plato.aristotle.net Date: Wed, 24 Apr 2002 11:32:35 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 04/24/2002 11:32:37 AM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good day all , While the list is on the subject of pendants is there a source for the spiral cable used on the c-series pendant.. I have the rj-45 connectors and have been replacing them over the years but some of my cables are getting a little short and the therapist want to be able to walk about the vault with the pendant in tow. Once again Many thanks Larry Sullivan Baptist Hospital Pensacola FL 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 24 19:47:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 170Qrb-0002ly-00; Wed, 24 Apr 2002 19:47:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 94D311112F3; Wed, 24 Apr 2002 20:48:44 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA05460 for linac-eng-list; Wed, 24 Apr 2002 12:24:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA05437 for ; Wed, 24 Apr 2002 12:24:26 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g3OHNmw03573; Wed, 24 Apr 2002 13:23:48 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BA5.005F723E ; Wed, 24 Apr 2002 13:22:31 -0400 X-Lotus-FromDomain: LRCC To: lsullivan@bhcpns.org Cc: linac-eng@plato.aristotle.net Message-ID: <85256BA5.005F710D.00@mail.lrcc.on.ca> Date: Wed, 24 Apr 2002 13:22:27 -0400 Subject: Re: Pendant cables Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: lsullivan@bhcpns.org Cc: linac-eng@plato.aristotle.net Date: Wed, 24 Apr 2002 13:22:27 -0400 Subject: Re: Pendant cables Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We get our cables from DIGIKEY, they are about $10.00. They are not as robust as the cords that Varian used to use but at ten bucks you won't break the bank changing them a couple of times a year Randy 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Apr 24 21:46:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 170SjD-0002sp-00; Wed, 24 Apr 2002 21:46:59 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0F9771112F3; Wed, 24 Apr 2002 22:48:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA02131 for linac-eng-list; Wed, 24 Apr 2002 14:29:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.tju.edu (mail.tju.edu [147.140.227.185]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA02123 for ; Wed, 24 Apr 2002 14:29:54 -0500 (CDT) Received: from kilby.tju.edu by mail.tju.edu with ESMTP for linac-eng@plato.aristotle.net; Wed, 24 Apr 2002 15:29:16 -0400 Received: from kilby.tju.edu (localhost [127.0.0.1]) by kilby.tju.edu (8.12.1/8.12.1) with ESMTP id g3OJTGBL019696 for ; Wed, 24 Apr 2002 15:29:16 -0400 Received: (from nobody@localhost) by kilby.tju.edu (8.12.1/8.12.1/Submit) id g3OJTGgv019695 for linac-eng@plato.aristotle.net; Wed, 24 Apr 2002 15:29:16 -0400 To: linac-eng@plato.aristotle.net Subject: elekta mylar mirrors Message-Id: <1019676556.3cc7078c49a82@imp.tju.edu> Date: Wed, 24 Apr 2002 15:29:16 -0400 (EDT) From: John Hopkins MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit User-Agent: IMP/PHP IMAP webmail program 2.2.7 X-Originating-IP: 147.140.80.95 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: linac-eng@plato.aristotle.net Subject: elekta mylar mirrors Date: Wed, 24 Apr 2002 15:29:16 -0400 (EDT) From: John Hopkins Content-Type: text/plain; charset=ISO-8859-1 User-Agent: IMP/PHP IMAP webmail program 2.2.7 X-Originating-IP: 147.140.80.95 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi this is my first posting. I'm curious if anyone has any experience with replacing mylar on elekta mirror frames. Specificly, adhesive used and how critical the thickness of the material used. Thanks John 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 25 17:32:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 170lEP-0000Vy-00; Thu, 25 Apr 2002 17:32:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AB9C11112F4; Thu, 25 Apr 2002 18:33:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA08358 for linac-eng-list; Thu, 25 Apr 2002 09:55:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca (firefox.scf.sk.ca [204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA08354 for ; Thu, 25 Apr 2002 09:55:26 -0500 (CDT) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA15263; Thu, 25 Apr 2002 09:01:41 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3CC818F5.C426C10C@scf.sk.ca> Date: Thu, 25 Apr 2002 08:55:49 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en Mime-Version: 1.0 To: Linac list Subject: elekta mylar mirrors Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 25 Apr 2002 08:55:49 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Accept-Language: en To: Linac list Subject: elekta mylar mirrors Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi John We had tried to put new mylar on the older non cast frames. The image was distorted as the frame was bending from stretching the mylar to get rid of the wrinkles. We were using a self adhesive 5 mill mylar sample from 3M. The newer cast frame my hold its flatness better but we have not had one to try yet. Also if you can find a lighter mylar there would be less chance to bend the frame when you shrink the mylar. Hope this information helps you. Robert Penley 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 25 22:22:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 170plW-00018g-00; Thu, 25 Apr 2002 22:22:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 763C51112F4; Thu, 25 Apr 2002 23:24:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA03527 for linac-eng-list; Thu, 25 Apr 2002 14:42:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA03519 for ; Thu, 25 Apr 2002 14:42:20 -0500 (CDT) Received: from Mailsweeper2.chhlth.govt.nz (mailsweeper2.chhlth.govt.nz [159.117.18.162]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id HAA21460 for ; Fri, 26 Apr 2002 07:27:32 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper2.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 26 Apr 2002 07:46:27 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 26 Apr 2002 07:41:10 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 26 Apr 2002 07:40:59 +1200 From: "Dave Pinchin" To: , Subject: Re: Pendant cables Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA03524 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 26 Apr 2002 07:40:59 +1200 From: "Dave Pinchin" To: , Subject: Re: Pendant cables Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA03524 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, Beware. I have found a problem with some suppliers of pendant cables. If the cable resistance is not real low (lots of copper) then too much voltage is dropped in the cable and the pendant will not work reliably. :D >>> 25/04/02 04:32:35 >>> Good day all , While the list is on the subject of pendants is there a source for the spiral cable used on the c-series pendant.. I have the rj-45 connectors and have been replacing them over the years but some of my cables are getting a little short and the therapist want to be able to walk about the vault with the pendant in tow. Once again Many thanks Larry Sullivan Baptist Hospital Pensacola FL 850-469-2200 ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). 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Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Apr 25 23:12:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 170qXO-0001CA-00; Thu, 25 Apr 2002 23:12:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5D8D71112F4; Fri, 26 Apr 2002 00:13:29 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA15752 for linac-eng-list; Thu, 25 Apr 2002 15:46:12 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA15748 for ; Thu, 25 Apr 2002 15:46:10 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KGZK947S7M0035PW@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Thu, 25 Apr 2002 16:45:11 -0400 (EDT) Date: Thu, 25 Apr 2002 16:42:28 -0400 From: "Peter E. Vitali" Subject: Re: Pendant cables To: Dave Pinchin Cc: lsullivan@bhcpns.org, linac-eng@plato.aristotle.net Message-id: <3CC869EB.36BF7CE3@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 25 Apr 2002 16:42:28 -0400 From: "Peter E. Vitali" Subject: Re: Pendant cables To: Dave Pinchin Cc: lsullivan@bhcpns.org, linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave and All: I have found that the average resistance of the wires in the cables is around 5 to 8 ohms. Much higher and you will experience intermittent problems. Pete Vitali 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 26 17:37:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1717n2-0007S1-00; Fri, 26 Apr 2002 17:37:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C9AA41112F7; Fri, 26 Apr 2002 18:38:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA24416 for linac-eng-list; Fri, 26 Apr 2002 09:50:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA24404 for ; Fri, 26 Apr 2002 09:50:19 -0500 (CDT) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 17172e-0002kS-00; Fri, 26 Apr 2002 15:49:44 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3CBF2962000C88C6 for linac-eng@plato.aristotle.net; Fri, 26 Apr 2002 15:49:44 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-3 6.5.016) id 3CC6D7110004AB94 for linac-eng@plato.aristotle.net; Fri, 26 Apr 2002 15:49:44 +0100 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Fri, 26 Apr 2002 15:23:22 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Fri, 26 Apr 2002 15:23:13 +0100 From: "Chris Forrest" To: Subject: Varian HE installations Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA24411 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 26 Apr 2002 15:23:13 +0100 From: "Chris Forrest" To: Subject: Varian HE installations Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA24411 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk A few of questions regarding Varian HE installations: Where do people normally site the air compressor? What is the max pipe run for this one? Is having the modulator cabinet in a separate room preferable? What is the maximum cable run for this one? Presumably the above questions applied to the chiller will be similar to Elekta so I could guesstimate for this unless you have any Varian specific comments. Thanks Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 26 18:00:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17188t-0007UK-00; Fri, 26 Apr 2002 18:00:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8C7B71112F7; Fri, 26 Apr 2002 19:01:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA00277 for linac-eng-list; Fri, 26 Apr 2002 10:37:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA00273 for ; Fri, 26 Apr 2002 10:37:43 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KH0NRWJ60Y002ZIE@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Fri, 26 Apr 2002 11:37:26 -0400 (EDT) Date: Fri, 26 Apr 2002 11:34:30 -0400 From: "Peter E. Vitali" Subject: Re: Varian HE installations To: Chris Forrest Cc: linac-eng@plato.aristotle.net Message-id: <3CC97348.3CA7A28F@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 26 Apr 2002 11:34:30 -0400 From: "Peter E. Vitali" Subject: Re: Varian HE installations To: Chris Forrest Cc: linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Chris: We use air supplied by the hospital. If you have to use an air compressor, it can probably go anywhere you want as long as it isn't noisy. We have one in the treatment room that is used to operate our Nomos Peacock multileaf system. Very quiet, cannot hear it running. The further the compressor is away from the machine the larger the hose or pipe has to be in order to comply with their requirements for air pressure and flow. One of our 2100Cs has the modulator in a room other than the treatment room. This was because the treatment room was too small to have both the linac and the modulator. The distance it can be from the linac is determined by Varian. How long their pulse cables can be. Chilled water: Varian has specific requirements for the flow rate and pressure. Sounds like you need an installation book from Varian. Pete Vitali 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 26 19:56:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1719xl-0007ZQ-00; Fri, 26 Apr 2002 19:56:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3AC431112F7; Fri, 26 Apr 2002 20:57:56 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA10707 for linac-eng-list; Fri, 26 Apr 2002 12:33:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA10671; Fri, 26 Apr 2002 12:33:26 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id NAA14649; Fri, 26 Apr 2002 13:27:35 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma014466; Fri, 26 Apr 02 13:26:39 -0400 Subject: Re: Varian HE installations To: "Chris Forrest" Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Fri, 26 Apr 2002 12:32:07 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 04/26/2002 12:32:08 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Re: Varian HE installations To: "Chris Forrest" Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net Date: Fri, 26 Apr 2002 12:32:07 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 04/26/2002 12:32:08 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Chris.. The Hi energy units we have all have a separate equipment room for chiller and compressor we also have a separate room for modulator .. These rooms are located on the adjacent back wall of the vault with a trench under the wall to the machine so the distance from modulator and chiller & air are less than 20 feet or so.... Varian supplied cables from modulator with contractor supplying air and chilled water. lines... We have a 5hp compressor with 40gallon tank and are using a stand alone chiller for each unit... Varian data books or installation materials will give you all the info you need. Hope this is helpful Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 26 20:13:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 171AEB-0007aR-00; Fri, 26 Apr 2002 20:13:51 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 770771112F7; Fri, 26 Apr 2002 21:14:54 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA14541 for linac-eng-list; Fri, 26 Apr 2002 12:52:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA14535 for ; Fri, 26 Apr 2002 12:52:28 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 26 Apr 2002 17:44:42 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Fri, 26 Apr 2002 10:52:02 -0700 Message-ID: <116B1F67502ED3119B2D00902740B816025C49F6@exchange3.inhs.org> From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Air and Modulator info on varian 2100 Date: Fri, 26 Apr 2002 10:51:59 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Air and Modulator info on varian 2100 Date: Fri, 26 Apr 2002 10:51:59 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk To Chris Forrest: Hi chris. I lost your e-mail address. On the subject of air, the Varian 2100 equipment doesn't use any noticeable "flow" from the external air supply so pipe diameter and distance is not an issue. The Varian spec. for air volume is 1cfm. It must be completely free of water so use some form of auto water purge system on the tank and a dryer on the compressor. The air supply must also have its own regulator set to 55 to 70 psi. The machine further regulates this pressure to 40 psi. On the subject of where to put the modulator the following should be considered. It is very convenient to have the modulator in the same room as the treatment machine for troubleshooting reasons. If pulse cables go bad and for other checks. The down side is that it can be electrically noisy and therefore should not be closer than 8 feet from the stand of the accelerator (15 feet would be nice). The pulse cables should be run in separate shielded conduit or raceways without any other cables. Of course, it is also nice to have the modulator out of the treatment room for noise reasons but in actuality I think it is helpful for the patient to know when the "beam is on". (the patients become quite used to this sound and like to know when to be still and all) Also, I would rather not have the noise of the modulator at my ear if there is any thought of putting it in the operator area. I have some machines with the modulator in a separate "storage room" and others with the modulator in the treatment room... As Peter mentioned, the length of the pulse cables is determined by Varian after their site visit. I think the maximum on these cables is 100 feet but Varian can answer this. And lastly, be sure to leave enough room at each side of the modulator as you will spend some time on your knees in these locations to remove heavy transformers to gain access to contactors and stuff. Regards, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 26 21:21:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 171BHB-0007cj-00; Fri, 26 Apr 2002 21:21:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 680FB1112F7; Fri, 26 Apr 2002 22:22:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA27381 for linac-eng-list; Fri, 26 Apr 2002 13:58:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA27377 for ; Fri, 26 Apr 2002 13:58:17 -0500 (CDT) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Fri, 26 Apr 2002 12:57:36 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Fri, 26 Apr 2002 12:57:12 -0600 From: "Robert Wood" To: Subject: Gun Deck isn't what Varian says it is (2100c) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27378 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 26 Apr 2002 12:57:12 -0600 From: "Robert Wood" To: Subject: Gun Deck isn't what Varian says it is (2100c) Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27378 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have two 2100C. Serial 292 and 305. On the Gun Driver schmatic it shows a 24 V DC power supply that provides the power for the HV PS for the gun. The drawing shows a switch on the Crowbar (K2) that shuts of the 24 volt PS so that when the crowbar is relaxed there is no power to the HV PS. With the crowbar in or out (but unit moded up) we still get 24 v to terminal 1 & 2 on the HVPS. The drawing shows that the contacts 6 7 on the crowbar are the swicth that shuts down the 24 v ps. I physically removed wire 6 and there was no change. In fact the drawing shows a switch in series with those contacts. If you throw the switch there is still 24 v power to the HVPS. I have talked with a very relable source and he was sure that the switches on the crowbar disabled the 24 v PS but it doesn't on either of our machines. Is anyone aware of a mod that was done that would effect this issue. The drawings I have for our machines show nothing. Somehow the power is being removed from the HV because when we open the gun deck and with the interlock switches open we have 0 volt on the Gun deck. If the HS was still on then we would measure the drop across the bleeder resistors off the crowbar. This is baffleing me. Any views or opinions expressed in this email (unless otherwise stated) are mine and do not reflect the opinions or policies of any other person or organization. This email may contain personel or private information and the foregoing is not intended to be a legally binding or legally effective electronic signature. This message may contain legally privileged or confidential information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Apr 26 22:28:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 171CKh-0007fV-00; Fri, 26 Apr 2002 22:28:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D0CA71112F7; Fri, 26 Apr 2002 23:29:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA06239 for linac-eng-list; Fri, 26 Apr 2002 14:47:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA06231 for ; Fri, 26 Apr 2002 14:47:01 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Fri, 26 Apr 2002 14:48:02 -0500 Message-ID: From: "Turner, Guy" To: "'Bush, Thomas M.'" , "'Linac-eng@plato.aristotle.net'" Subject: RE: Air and Modulator info on varian 2100 Date: Fri, 26 Apr 2002 14:47:55 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Bush, Thomas M.'" , "'Linac-eng@plato.aristotle.net'" Subject: RE: Air and Modulator info on varian 2100 Date: Fri, 26 Apr 2002 14:47:55 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk When I was with Varian I had a customer site that had the modulator in a closet in the parking garage! They were kind enough to put a phone in there.......if you had anyone to call that is..... -----Original Message----- From: Bush, Thomas M. [mailto:BushT@shmc.org] Sent: Friday, April 26, 2002 12:52 PM To: 'Linac-eng@plato.aristotle.net' Subject: Air and Modulator info on varian 2100 To Chris Forrest: Hi chris. I lost your e-mail address. On the subject of air, the Varian 2100 equipment doesn't use any noticeable "flow" from the external air supply so pipe diameter and distance is not an issue. The Varian spec. for air volume is 1cfm. It must be completely free of water so use some form of auto water purge system on the tank and a dryer on the compressor. The air supply must also have its own regulator set to 55 to 70 psi. The machine further regulates this pressure to 40 psi. On the subject of where to put the modulator the following should be considered. It is very convenient to have the modulator in the same room as the treatment machine for troubleshooting reasons. If pulse cables go bad and for other checks. The down side is that it can be electrically noisy and therefore should not be closer than 8 feet from the stand of the accelerator (15 feet would be nice). The pulse cables should be run in separate shielded conduit or raceways without any other cables. Of course, it is also nice to have the modulator out of the treatment room for noise reasons but in actuality I think it is helpful for the patient to know when the "beam is on". (the patients become quite used to this sound and like to know when to be still and all) Also, I would rather not have the noise of the modulator at my ear if there is any thought of putting it in the operator area. I have some machines with the modulator in a separate "storage room" and others with the modulator in the treatment room... As Peter mentioned, the length of the pulse cables is determined by Varian after their site visit. I think the maximum on these cables is 100 feet but Varian can answer this. And lastly, be sure to leave enough room at each side of the modulator as you will spend some time on your knees in these locations to remove heavy transformers to gain access to contactors and stuff. Regards, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Apr 27 02:22:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 171FzE-0007mo-00; Sat, 27 Apr 2002 02:22:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 163701112F7; Sat, 27 Apr 2002 03:23:48 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id SAA16987 for linac-eng-list; Fri, 26 Apr 2002 18:59:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA16980 for ; Fri, 26 Apr 2002 18:59:02 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Fri, 26 Apr 2002 19:58:31 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAB2@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Robert Wood'" , linac-eng@plato.aristotle.net Subject: RE: Gun Deck isn't what Varian says it is (2100c) Date: Fri, 26 Apr 2002 19:58:31 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Robert Wood'" , linac-eng@plato.aristotle.net Subject: RE: Gun Deck isn't what Varian says it is (2100c) Date: Fri, 26 Apr 2002 19:58:31 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This sounds familiar, I was surprised to find the gun hv comes on without waiting for the time delay. Don't have my old analog book handy, but the HV part is probably similar for the digital gun. For my C3: The crowbar interrupts the 115vac when the cover switches or ps switches are open, HV is gone. Some other contacts on the crowbar are in parallel with the controller, both must be open to enable HV. Either one shorted to ground takes away the enable voltage. Crowbar is always open if cover switches are closed, and the controller turns on HV as soon as the gun is turned on, so enable is always there under this condition. But it should not be there if the crowbar is closed. I have seen a bent switch prevent the crowbar from operating, bad switches/adjustments of the crowbar switches, an open wire (crowbar must short the line to ground to remove enable), open crowbar resistors. Always use the hookstick! It sounds like your crowbar is not shorting the enable line to ground when it closes. Hope the analog gun is similar, will look next week for fun. How is the drought in Idaho? Jerry > -----Original Message----- > From: Robert Wood [SMTP:WOODR@slrmc.org] > Sent: Friday, April 26, 2002 2:57 PM > To: linac-eng@plato.aristotle.net > Subject: Gun Deck isn't what Varian says it is (2100c) > > ////////////////////////////////////////////////////////////////////////// > ////////////////////////////////////////////////////////////////////////// > ////////////////////////////////////////////////////////////////////////// > //////////////////////////////////////////////////////////////////76We > have two 2100C. Serial 292 and 305. On the Gun Driver schmatic it shows > a 24 V DC power supply that provides the power for the HV PS for the gun. > The drawing shows a switch on the Crowbar (K2) that shuts of the 24 volt > PS so that when the crowbar is relaxed there is no power to the HV PS. > With the crowbar in or out (but unit moded up) we still get 24 v to > terminal 1 & 2 on the HVPS. The drawing shows that the contacts 6 7 on > the crowbar are the swicth that shuts down the 24 v ps. I physically > removed wire 6 and there was no change. In fact the drawing shows a > switch in series with those contacts. If you throw the switch there is > still 24 v power to the HVPS. > I have talked with a very relable source and he was sure that the switches > on the crowbar disabled the 24 v PS but it doesn't on either of our > machines. Is anyone aware of a mod that was done that would effect this > issue. The drawings I have for our machines show nothing. > Somehow the power is being removed from the HV because when we open the > gun deck and with the interlock switches open we have 0 volt on the Gun > deck. If the HS was still on then we would measure the drop across the > bleeder resistors off the crowbar. This is baffleing me. > > Any views or opinions expressed in this email (unless otherwise stated) > are mine and do not reflect the opinions or policies of any other person > or organization. This email may contain personel or private information > and the foregoing is not intended to be a legally binding or legally > effective electronic signature. This message may contain legally > privileged or confidential information. If you are not the intended > recipient of this message, please notify me, disregard the foregoing > message, and delete the message immediately. I apologize for any > inconvenience this may have caused. > 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Apr 28 05:55:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 171fn3-0000fb-00; Sun, 28 Apr 2002 05:55:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 335131112F3; Sun, 28 Apr 2002 06:56:52 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA16977 for linac-eng-list; Sat, 27 Apr 2002 22:35:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f123.law11.hotmail.com [64.4.17.123]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA16973 for ; Sat, 27 Apr 2002 22:35:48 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sat, 27 Apr 2002 20:35:17 -0700 Received: from 24.91.85.184 by lw11fd.law11.hotmail.msn.com with HTTP; Sun, 28 Apr 2002 03:35:16 GMT X-Originating-IP: [24.91.85.184] From: "eng site" To: roddmod@hotmail.com, rsabey@bccancer.bc.ca, linac-eng@plato.aristotle.net Subject: RE: Alex´s Suggestion Date: Sat, 27 Apr 2002 22:35:16 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 28 Apr 2002 03:35:17.0749 (UTC) FILETIME=[B74D5250:01C1EE65] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [24.91.85.184] From: "eng site" To: roddmod@hotmail.com, rsabey@bccancer.bc.ca, linac-eng@plato.aristotle.net Subject: RE: Alex´s Suggestion Date: Sat, 27 Apr 2002 22:35:16 -0500 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 28 Apr 2002 03:35:17.0749 (UTC) FILETIME=[B74D5250:01C1EE65] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk me thinks this might be a s m a l l exaggeration....3 2100Ex in Waukesha?? _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Apr 29 18:17:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 172Dpl-0007Kp-00; Mon, 29 Apr 2002 18:17:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C502D1112F4; Mon, 29 Apr 2002 19:17:47 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA29255 for linac-eng-list; Mon, 29 Apr 2002 10:17:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc53.attbi.com (rwcrmhc53.attbi.com [204.127.198.39]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29250 for ; Mon, 29 Apr 2002 10:17:49 -0500 (CDT) Received: from c1784162a ([12.247.221.153]) by rwcrmhc53.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020429151743.JPXL10474.rwcrmhc53.attbi.com@c1784162a> for ; Mon, 29 Apr 2002 15:17:43 +0000 Message-ID: <007601c1ef90$a40e1540$99ddf70c@mshome.net> From: "Rich Kimball" To: "Linac Engineer List" Subject: Varian 2100C w/MLC head pulling Date: Mon, 29 Apr 2002 10:15:04 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0073_01C1EF66.BAF4E9C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Linac Engineer List" Subject: Varian 2100C w/MLC head pulling Date: Mon, 29 Apr 2002 10:15:04 -0500 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0073_01C1EF66.BAF4E9C0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0073_01C1EF66.BAF4E9C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Anyone pulled a head on a 2100C w/MLC to replace fiber optic collimator = windup cables without the special fixture from Varian? Thanks. Rich Kimball ------=_NextPart_000_0073_01C1EF66.BAF4E9C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Anyone pulled a head on a 2100C w/MLC = to replace=20 fiber optic collimator windup cables without the special fixture from=20 Varian?
     
    Thanks.
    Rich Kimball
    ------=_NextPart_000_0073_01C1EF66.BAF4E9C0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 30 00:33:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 172Jht-0007ck-00; Tue, 30 Apr 2002 00:33:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 227531112F4; Tue, 30 Apr 2002 01:34:03 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA11901 for linac-eng-list; Mon, 29 Apr 2002 17:05:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA11897 for ; Mon, 29 Apr 2002 17:05:40 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Mon, 29 Apr 2002 18:05:09 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAB5@phsexch6.partners.org> From: "Maddox, Buford J" To: "Maddox, Buford J" , "'Robert Wood'" , linac-eng@plato.aristotle.net Subject: RE: Gun Deck isn't what Varian says it is (2100c) Date: Mon, 29 Apr 2002 18:05:06 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "Maddox, Buford J" , "'Robert Wood'" , linac-eng@plato.aristotle.net Subject: RE: Gun Deck isn't what Varian says it is (2100c) Date: Mon, 29 Apr 2002 18:05:06 -0400 Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I just had a look at the old analog book, serial number near that of Woody. I am embarrassed to see how little I remembered of that crowbar circuit, not at all like the digital for the enable part. I would come to the same conclusions as Woody, looking at the drawing. As long as the interlock switches and K3 are closed, AC will go thru pin 6 and 7 of the crowbar to the 24v supply. Anyone else? > -----Original Message----- > From: Maddox, Buford J > Sent: Friday, April 26, 2002 7:59 PM > To: 'Robert Wood'; linac-eng@plato.aristotle.net > Subject: RE: Gun Deck isn't what Varian says it is (2100c) > > This sounds familiar, I was surprised to find the gun hv comes on without > waiting for the time delay. Don't have my old analog book handy, but the > HV > part is probably similar for the digital gun. For my C3: The crowbar > interrupts the 115vac when the cover switches or ps switches are open, HV > is > gone. Some other contacts on the crowbar are in parallel with the > controller, both must be open to enable HV. Either one shorted to ground > takes away the enable voltage. Crowbar is always open if cover switches > are > closed, and the controller turns on HV as soon as the gun is turned on, so > enable is always there under this condition. But it should not be there > if > the crowbar is closed. I have seen a bent switch prevent the crowbar from > operating, bad switches/adjustments of the crowbar switches, an open wire > (crowbar must short the line to ground to remove enable), open crowbar > resistors. Always use the hookstick! > > It sounds like your crowbar is not shorting the enable line to ground when > it closes. > > Hope the analog gun is similar, will look next week for fun. > > How is the drought in Idaho? > > Jerry > > > > -----Original Message----- > > From: Robert Wood [SMTP:WOODR@slrmc.org] > > Sent: Friday, April 26, 2002 2:57 PM > > To: linac-eng@plato.aristotle.net > > Subject: Gun Deck isn't what Varian says it is (2100c) > > > > > ////////////////////////////////////////////////////////////////////////// > > > ////////////////////////////////////////////////////////////////////////// > > > ////////////////////////////////////////////////////////////////////////// > > //////////////////////////////////////////////////////////////////76We > > have two 2100C. Serial 292 and 305. On the Gun Driver schmatic it > shows > > a 24 V DC power supply that provides the power for the HV PS for the > gun. > > The drawing shows a switch on the Crowbar (K2) that shuts of the 24 volt > > PS so that when the crowbar is relaxed there is no power to the HV PS. > > With the crowbar in or out (but unit moded up) we still get 24 v to > > terminal 1 & 2 on the HVPS. The drawing shows that the contacts 6 7 on > > the crowbar are the swicth that shuts down the 24 v ps. I physically > > removed wire 6 and there was no change. In fact the drawing shows a > > switch in series with those contacts. If you throw the switch there is > > still 24 v power to the HVPS. > > I have talked with a very relable source and he was sure that the > switches > > on the crowbar disabled the 24 v PS but it doesn't on either of our > > machines. Is anyone aware of a mod that was done that would effect this > > issue. The drawings I have for our machines show nothing. > > Somehow the power is being removed from the HV because when we open the > > gun deck and with the interlock switches open we have 0 volt on the Gun > > deck. If the HS was still on then we would measure the drop across the > > bleeder resistors off the crowbar. This is baffleing me. > > > > Any views or opinions expressed in this email (unless otherwise stated) > > are mine and do not reflect the opinions or policies of any other person > > or organization. This email may contain personel or private information > > and the foregoing is not intended to be a legally binding or legally > > effective electronic signature. This message may contain legally > > privileged or confidential information. If you are not the intended > > recipient of this message, please notify me, disregard the foregoing > > message, and delete the message immediately. I apologize for any > > inconvenience this may have caused. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 30 17:36:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 172ZgQ-0000Qm-00; Tue, 30 Apr 2002 17:36:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E79E31112F4; Tue, 30 Apr 2002 18:37:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA06162 for linac-eng-list; Tue, 30 Apr 2002 09:52:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r01.mx.aol.com (imo-r01.mx.aol.com [152.163.225.97]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA06157 for ; Tue, 30 Apr 2002 09:52:12 -0500 (CDT) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-r01.mx.aol.com (mail_out_v32.5.) id y.177.790e41d (2170) for ; Tue, 30 Apr 2002 10:51:26 -0400 (EDT) Message-ID: <177.790e41d.2a00096e@aol.com> Date: Tue, 30 Apr 2002 10:51:26 EDT Subject: RSEA To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10503 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Tue, 30 Apr 2002 10:51:26 EDT Subject: RSEA To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Can anybody give me some information on the Radiotherapy Service Engineer Assoc.? I understand there is a meeting in Canada this summer. Is this a Canadian or international group? Dave Steimel MIRO Farmington Hills, MI 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 30 20:42:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 172caC-0000ky-00; Tue, 30 Apr 2002 20:42:36 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0B35C1112F4; Tue, 30 Apr 2002 21:43:17 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA22989 for linac-eng-list; Tue, 30 Apr 2002 13:06:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from guppy.dmz.priority-health.com (telnet.priority-health.com [63.236.252.43]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA22961 for ; Tue, 30 Apr 2002 13:06:16 -0500 (CDT) From: neville.wiles@spectrum-health.org Received: from kahoolawe.dmz.internal.priority-health.com (kahoolawe.dmz.priority-health.com [10.51.1.36]) by guppy.dmz.priority-health.com (8.11.6/8.9.11) with ESMTP id g3UI5gW16600 for ; Tue, 30 Apr 2002 14:05:42 -0400 Received: from guam.internal.priority-health.com (unverified) by kahoolawe.dmz.internal.priority-health.com (Content Technologies SMTPRS 4.2.5) with ESMTP id ; Tue, 30 Apr 2002 14:11:56 -0400 Received: by GUAM with Internet Mail Service (5.5.2653.19) id ; Tue, 30 Apr 2002 14:07:11 -0400 Message-ID: <9BA17E080E6CD51195EE0020484023FF9C77F3@dcntmsg03.spectrum-health.org> To: MIROSTEIMEL@aol.com, linac-eng@plato.aristotle.net Subject: RE: RSEA Date: Tue, 30 Apr 2002 14:06:08 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org To: MIROSTEIMEL@aol.com, linac-eng@plato.aristotle.net Subject: RE: RSEA Date: Tue, 30 Apr 2002 14:06:08 -0400 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello, Is this some sort of group that we will have to be registered with sometime in the future? Will there be all kinds of continue education requirements? I may be wrong but this sounds kind of like big brother. Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org -----Original Message----- From: MIROSTEIMEL@aol.com [mailto:MIROSTEIMEL@aol.com] Sent: Tuesday, April 30, 2002 10:51 AM To: linac-eng@plato.aristotle.net Subject: RSEA Can anybody give me some information on the Radiotherapy Service Engineer Assoc.? I understand there is a meeting in Canada this summer. Is this a Canadian or international group? Dave Steimel MIRO Farmington Hills, MI 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Apr 30 23:38:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 172fKc-0000tq-00; Tue, 30 Apr 2002 23:38:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 25E611112F4; Wed, 1 May 2002 00:39:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA27287 for linac-eng-list; Tue, 30 Apr 2002 16:03:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA27281 for ; Tue, 30 Apr 2002 16:03:51 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: RSEA X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Tue, 30 Apr 2002 16:51:24 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F849165038698@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: RSEA Thread-Index: AcHwbjAxodxA0dMcTcymPTdPmGj/SgADkCqw From: "Tim Cullen" To: , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA27282 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" Subject: RE: RSEA X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Tue, 30 Apr 2002 16:51:24 -0400 Thread-Topic: RSEA Thread-Index: AcHwbjAxodxA0dMcTcymPTdPmGj/SgADkCqw From: "Tim Cullen" To: , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA27282 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave and list, It's a non-profit association established recently in the USA, with the bulk of the credit going to the AAPM org. and a core group of your fellow linac engineers. As the name implies it will be devoted to linac service/engineering personnel. There is a web page that became active just yesterday and is still under construction. Hopefully you heard about the meeting from the mailer that went out with the AAPM's newsletter. If not you can go to the web page and link to the registration form. RSEA The official web page of the Radiotherapy Service Engineer's Association (http://www.linaceng.org/) The meeting will take place July 13-14, 2002 in Montreal, Canada. Hope to see everyone there. The web page is pretty straight forward and will answer some of the questions you might have. It will be updated frequently so check back from time to time. Tim Cullen WFUBMC > -----Original Message----- > From: MIROSTEIMEL@aol.com [mailto:MIROSTEIMEL@aol.com] > Sent: Tuesday, April 30, 2002 10:51 AM > To: linac-eng@plato.aristotle.net > Subject: RSEA > > > Can anybody give me some information on the Radiotherapy > Service Engineer > Assoc.? I understand there is a meeting in Canada this > summer. Is this a > Canadian or international group? > Dave Steimel > MIRO > Farmington Hills, MI > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 02 17:37:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 173IeS-0005vu-00; Thu, 02 May 2002 17:37:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D30541112F4; Thu, 2 May 2002 18:38:17 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA20141 for linac-eng-list; Thu, 2 May 2002 09:59:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m08.mx.aol.com (imo-m08.mx.aol.com [64.12.136.163]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA20137 for ; Thu, 2 May 2002 09:59:05 -0500 (CDT) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-m08.mx.aol.com (mail_out_v32.5.) id y.185.7bd81a8 (4185) for ; Thu, 2 May 2002 10:58:06 -0400 (EDT) Message-ID: <185.7bd81a8.2a02adfe@aol.com> Date: Thu, 2 May 2002 10:58:06 EDT Subject: Siemens Dose Rate Prob. To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10503 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Thu, 2 May 2002 10:58:06 EDT Subject: Siemens Dose Rate Prob. To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Here's one for the Siemens guys on the list: I have a digital Maggie machine (a.k.a. Mid-Primus) with the symptom of the dose pulses dropping approx. 50% in amplitude at gantry angles between 270 and 180 tripping dose rate interlock. This happens only on my two highest electron energies, 12 &14 MeV. They are also the only energies using LENS. I have monitored lens at the coil connection - no change. Monitored INJ-E - no change. Ditto INJ-I throughout range (on photons where I can see the pulse) - no fluctuations observed. Luckily this hasn't been a problem because they currently have no patients that are being treated within these parameters. I will probably be in there in the next couple evenings to inspect dose chamber connections and pull the head to check out target/foil. Any other suggestions? Dave Steimel MIRO Farmington Hills, MI 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 02 17:41:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 173Ii2-0005x7-00; Thu, 02 May 2002 17:41:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 862361112F4; Thu, 2 May 2002 18:42:00 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA20049 for linac-eng-list; Thu, 2 May 2002 09:55:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailserver.xrt.upenn.edu (email.xrt.upenn.edu [165.123.248.180]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA20045 for ; Thu, 2 May 2002 09:55:05 -0500 (CDT) Received: by email.xrt.upenn.edu with Internet Mail Service (5.5.2650.21) id <20Y8G214>; Thu, 2 May 2002 11:04:34 -0400 Message-ID: From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100c for sale Date: Thu, 2 May 2002 11:04:34 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1F1EA.AB9A6C30" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100c for sale Date: Thu, 2 May 2002 11:04:34 -0400 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1F1EA.AB9A6C30" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1F1EA.AB9A6C30 Content-Type: text/plain; charset="iso-8859-1" The Hospital of the University of Pennsylvania department of Radiation Oncology will be taking bids on a Varian 2100c. Interested parties need to keep in mind that the awarded party will be responsible for removal and shipment of equipment agreed on by the University of Pennsylvania and the awarded party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian. This accelerator is used for daily clinical treatment and has been upgraded with many features. Installed in 1988 and fully operational since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories along with an ETR couch and independent jaws with enhanced dynamic wedge capability. Estimated removal time will be around September This accelerator has been setup with the following energies 6x 15x 6e 9e 12e 16e 20e Interested parties with questions or would like to setup a time to see the equipment can contact: Rick Kreider Chief of Engineering Hospital of the University of Pennsylvania Department of Radiation Oncology Kreider@xrt.upenn.edu Tel: 215-662-6815 Fax: 215-662-6762 ------_=_NextPart_001_01C1F1EA.AB9A6C30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The University of Pennsylvania Hospital department of Radiation = Oncology will be taking bids on a Varian 2100c

    The Hospital of the University of Pennsylvania department of = Radiation Oncology will be taking bids on a Varian 2100c. Interested parties need = to keep in mind that the awarded party will be responsible for removal and = shipment of equipment agreed on by the University of Pennsylvania and the awarded = party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian.

     

    This accelerator is used for daily clinical treatment and has = been upgraded with many features. Installed in 1988 and fully operational = since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories = along with an ETR couch and independent jaws with enhanced dynamic wedge = capability.

     

    Estimated removal time will be around = September

     

    This accelerator has been setup with the following energies

    6x  15x  6e  9e  = 12e  16e  20e

     

    Interested parties with questions or would like to setup a time = to see the equipment

    can contact:

     

    Rick Kreider

    Chief of Engineering

    Hospital of the University of Pennsylvania

    Department of Radiation Oncology

    Kreider@xrt.upenn.edu

    Tel: 215-662-6815

    Fax: 215-662-6762

      =

    ------_=_NextPart_001_01C1F1EA.AB9A6C30-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 02 18:45:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 173Ji8-00066i-00; Thu, 02 May 2002 18:45:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EC3E11112F4; Thu, 2 May 2002 19:46:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA27309 for linac-eng-list; Thu, 2 May 2002 11:14:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta3.snet.net (mta3.snet.net [204.60.203.69]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA27305 for ; Thu, 2 May 2002 11:14:25 -0500 (CDT) Received: from INSPIRON (53.126.252.64.snet.net [64.252.126.53]) by mta3.snet.net (8.12.3/8.12.3/SNET-smtp-1.2/D-1.1.1.1/O-1.1.1.1) with ESMTP id g42GC8I7011669 for ; Thu, 2 May 2002 12:12:09 -0400 (EDT) Reply-To: From: "Martin Shapiro" To: Subject: Med-Phys posting Date: Thu, 2 May 2002 12:12:33 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Martin Shapiro" To: Subject: Med-Phys posting Date: Thu, 2 May 2002 12:12:33 -0400 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This was recently posted on the Med-Physics BBS. I thought it was interesting Date: Wed, 1 May 2002 07:09:13 -0400 From: Tewfik Bichay Subject: Re-service engineer/physics assistant I would like to hear from anyone who has an in-house service engineer in a radiation oncology facility. I am trying to create a position for an engineer which would include overseeing all equipment support, but in addition would also oversee the therapists warmup of therapy equipment, help the physicist in commissioning, carry out basic quality assurance and develop modifications to treatment equipment. I would like this position to be salaried (not hourly). Dose anyone out there have staff in this kind of position? Tewfik J. Bichay BichayT@Trinity-Health.Org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 02 19:59:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 173KrF-0006BS-00; Thu, 02 May 2002 19:59:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 63A3C1112F4; Thu, 2 May 2002 20:59:39 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA06197 for linac-eng-list; Thu, 2 May 2002 12:32:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA06191 for ; Thu, 2 May 2002 12:32:47 -0500 (CDT) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Thu, 2 May 2002 13:32:12 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAB8@phsexch6.partners.org> From: "Maddox, Buford J" To: "'MIROSTEIMEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Siemens Dose Rate Prob. Date: Thu, 2 May 2002 13:32:12 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'MIROSTEIMEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Siemens Dose Rate Prob. Date: Thu, 2 May 2002 13:32:12 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk could be water in some foil holes, causing dose changes, like adding a layer to a test phantom. The water changes with gantry angle. I would have the Physicist check the total dose and dose rate calibration at the angles where the pulses are low, with the servo off. I always look for water in all brands if the ionchamber signals change, as the cables can get wet. Water leaks can be targets, hoses, fittings, waveguide window, etc. Otherwise, what changes with rotation-cables, mounting, afc. Also, you anything you can tweak to bring it back? Fiddle with settings, find one that changes with rotation as checked manually. In electrons, you shouldn't damage the vacuum envelope, but keep the time short. In photon modes, you can make a hole, so use great caution. Any other signals that correlate? Easy to bring out most signals thru the switchable test arrangement provided. Don't have to pull the head to check target/foil slide, comes out the side. good luck, Jerry > -----Original Message----- > From: MIROSTEIMEL@aol.com [SMTP:MIROSTEIMEL@aol.com] > Sent: Thursday, May 02, 2002 10:58 AM > To: linac-eng@plato.aristotle.net > Subject: Siemens Dose Rate Prob. > > Here's one for the Siemens guys on the list: > I have a digital Maggie machine (a.k.a. Mid-Primus) with the symptom of the > dose pulses dropping approx. 50% in amplitude at gantry angles between 270 > and 180 tripping dose rate interlock. This happens only on my two highest > electron energies, 12 &14 MeV. They are also the only energies using LENS. I > have monitored lens at the coil connection - no change. Monitored INJ-E - no > change. Ditto INJ-I throughout range (on photons where I can see the pulse) - > no fluctuations observed. > Luckily this hasn't been a problem because they currently have no patients > that are being treated within these parameters. > I will probably be in there in the next couple evenings to inspect dose > chamber connections and pull the head to check out target/foil. > Any other suggestions? > > Dave Steimel > MIRO > Farmington Hills, MI 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 03 05:29:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 173Tkx-0006ae-00; Fri, 03 May 2002 05:29:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 873AA1112F1; Fri, 3 May 2002 06:29:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA25853 for linac-eng-list; Thu, 2 May 2002 22:08:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mtaout01 (smtp.comcast.net [24.153.64.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA25849 for ; Thu, 2 May 2002 22:08:08 -0500 (CDT) Received: from cc438936b (bgp611630bgs.midltn01.nj.comcast.net [68.39.74.15]) by mtaout01.icomcast.net (iPlanet Messaging Server 5.1 HotFix 0.6 (built Apr 26 2002)) with SMTP id <0GVI00MO0M0PQ6@mtaout01.icomcast.net> for linac-eng@plato.aristotle.net; Thu, 02 May 2002 23:07:38 -0400 (EDT) Date: Thu, 02 May 2002 23:05:03 -0400 From: "Thomas J. Fox" Subject: RE: Siemens Dose Rate Prob. In-reply-to: <185.7bd81a8.2a02adfe@aol.com> To: MIROSTEIMEL@aol.com, linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 02 May 2002 23:05:03 -0400 From: "Thomas J. Fox" Subject: RE: Siemens Dose Rate Prob. In-reply-to: <185.7bd81a8.2a02adfe@aol.com> To: MIROSTEIMEL@aol.com, linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Content-type: text/plain; charset=iso-8859-1 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Try changing Injection trigger settings just a little up or down. Had the problem on a klystron machine (with only one electron energy) and thought it was the rotating joint but a click on the injector trigger and all of a sudden, output was normal. The same machine previously had lost "some" injection pulses, with one photon energy, when the gantry reached close to 180 degrees. I made a very small change on that Inj trigger point and it resolved that one. The trigger issues are not totally unknown to Siemens. I had a leaking target that caused Flatness faults, with electrons, mostly at a gantry angle near 180 degrees. The water will drop out of the foils at 90 degrees and output returned to normal, otherwise it was hit or miss with the flatness faults on the electrons. It was also most prevalent at the lower energies, with water in the foils. Good luck. Tom Fox -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of MIROSTEIMEL@aol.com Sent: Thursday, May 02, 2002 10:58 AM To: linac-eng@plato.aristotle.net Subject: Siemens Dose Rate Prob. Here's one for the Siemens guys on the list: I have a digital Maggie machine (a.k.a. Mid-Primus) with the symptom of the dose pulses dropping approx. 50% in amplitude at gantry angles between 270 and 180 tripping dose rate interlock. This happens only on my two highest electron energies, 12 &14 MeV. They are also the only energies using LENS. I have monitored lens at the coil connection - no change. Monitored INJ-E - no change. Ditto INJ-I throughout range (on photons where I can see the pulse) - no fluctuations observed. Luckily this hasn't been a problem because they currently have no patients that are being treated within these parameters. I will probably be in there in the next couple evenings to inspect dose chamber connections and pull the head to check out target/foil. Any other suggestions? Dave Steimel MIRO Farmington Hills, MI 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 03 14:44:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 173cQk-0002Hy-00; Fri, 03 May 2002 14:44:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9C6911112FD; Fri, 3 May 2002 15:45:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA06463 for linac-eng-list; Fri, 3 May 2002 07:22:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA06456 for ; Fri, 3 May 2002 07:22:09 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g43CLcm19626 for ; Fri, 3 May 2002 08:21:38 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BAE.004376C9 ; Fri, 3 May 2002 08:16:53 -0400 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256BAE.0043759D.00@mail.lrcc.on.ca> Date: Fri, 3 May 2002 08:16:49 -0400 Subject: Varian - OnLine Power Conditioners Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Fri, 3 May 2002 08:16:49 -0400 Subject: Varian - OnLine Power Conditioners Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have OnLine power conditioners on 5 of our linacs, 3 of our linacs do not have any power conditioners at all. Whenever there is a little power glitch, the linacs on the power conditioners all drop the linac down to EMERGENCY OFF state, the 3 that have no power condtioners almost never drop down to EMERGENCY OFF. Does anyone else experience this as well? Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 07 15:34:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17556u-0001Zx-00; Tue, 07 May 2002 15:34:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6BB781112F1; Tue, 7 May 2002 16:34:32 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA01065 for linac-eng-list; Tue, 7 May 2002 07:52:42 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc51.attbi.com (rwcrmhc51.attbi.com [204.127.198.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA01061 for ; Tue, 7 May 2002 07:52:40 -0500 (CDT) Received: from c1784162a ([12.249.244.86]) by rwcrmhc51.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020507125206.HPYD9799.rwcrmhc51.attbi.com@c1784162a> for ; Tue, 7 May 2002 12:52:06 +0000 Message-ID: <004101c1f5c6$745769a0$0100a8c0@mshome.net> From: "Rich Kimball" To: "Linac Engineer List" Subject: Siemens Simview Date: Tue, 7 May 2002 07:55:24 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003E_01C1F59C.8B244D80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Linac Engineer List" Subject: Siemens Simview Date: Tue, 7 May 2002 07:55:24 -0500 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003E_01C1F59C.8B244D80" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_003E_01C1F59C.8B244D80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Anyone have any knowledge of one of these? Got one where the CPU has halted. Video displays are good but no motion = enable. There is a device called 'battery warning' in which there are 2 leds. = One labeled MB, whose led is out. The other labeled RB whose led is = yellow. Comments? Help! Rich Kimball ------=_NextPart_000_003E_01C1F59C.8B244D80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Anyone have any knowledge of one of=20 these?
    Got one where the CPU has halted.  = Video=20 displays are good but no motion enable.
    There is a device called 'battery = warning' in=20 which there are 2 leds.  One labeled MB, whose led is out. The = other=20 labeled RB whose led is yellow.
     
    Comments? Help!
    Rich Kimball
    ------=_NextPart_000_003E_01C1F59C.8B244D80-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 08 17:34:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 175TSa-0007v2-00; Wed, 08 May 2002 17:34:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 32E481112F3; Wed, 8 May 2002 18:34:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA16294 for linac-eng-list; Wed, 8 May 2002 09:51:33 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ihis.org (peihealth.ihis.org [142.176.18.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA16290 for ; Wed, 8 May 2002 09:51:26 -0500 (CDT) Received: by peihealth.ihis.org id <115205>; Wed, 8 May 2002 11:45:42 -0300 Message-Id: <02May8.114542adt.115205@peihealth.ihis.org> X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Wed, 8 May 2002 11:47:02 -0300 From: "Rick Smith" To: Subject: space requirement for Linac service engineer Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA16291 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 8 May 2002 11:47:02 -0300 From: "Rick Smith" To: Subject: space requirement for Linac service engineer Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA16291 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We are setting up for our first Linear Accelerator and are designing the workshop/office/storage for the inhouse service engineer. Are there recommendations for square footage or room layout which you can share, or comments generally. We have selected a varian 21ex with 100leaf MLC and will need to store parts kits, manuals and tools etc. Please respond on or off the list, this topic may be of interest to others. Thanks Rick Smith Queen Elizabeth Hospital Charlottetown PEI Canada ersmith@ihis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 08 18:32:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 175UN7-00083T-00; Wed, 08 May 2002 18:32:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A73D91112F3; Wed, 8 May 2002 19:32:49 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA18552 for linac-eng-list; Wed, 8 May 2002 11:05:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA18543 for ; Wed, 8 May 2002 11:05:10 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g48G3nm17994; Wed, 8 May 2002 12:03:49 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BB3.00583A97 ; Wed, 8 May 2002 12:03:41 -0400 X-Lotus-FromDomain: LRCC To: "Rick Smith" Cc: linac-eng@plato.aristotle.net Message-ID: <85256BB3.00583A71.00@mail.lrcc.on.ca> Date: Wed, 8 May 2002 12:03:40 -0400 Subject: Re: space requirement for Linac service engineer Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Rick Smith" Cc: linac-eng@plato.aristotle.net Date: Wed, 8 May 2002 12:03:40 -0400 Subject: Re: space requirement for Linac service engineer Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Kind of depends if you are going to be adding more equipment in the future. Our shop is 1770cm by 510cm, 4 guys have desks and work benches in this area and a storage area 630cm by 510cm for some storage plus we have another storage area for bulky not often used equipment like an A-frame crane, etc The square footage isn't too bad but there is some wasted space due to it being so long and narrow. We look after 8 linacs, 3 MLC, 2PV, 2Xim, 1CT. Randy McVittie 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 08 19:17:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 175V45-00087K-00; Wed, 08 May 2002 19:17:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F0421112F3; Wed, 8 May 2002 20:17:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA24221 for linac-eng-list; Wed, 8 May 2002 11:53:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhost.ks.se (gate2.ks.se [193.10.63.101]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA24217 for ; Wed, 8 May 2002 11:53:34 -0500 (CDT) Received: from ks.se ([136.155.36.170]) by mailhost.ks.se (Sun Internet Mail Server sims.4.0.2001.07.26.11.50.p9) with ESMTP id <0GVS00A6EXOVY7@mailhost.ks.se> for linac-eng@plato.aristotle.net; Wed, 8 May 2002 18:55:44 +0200 (MET DST) Date: Mon, 06 May 2002 18:53:17 +0200 From: Walter Wyrsch Subject: GP8 Digitizer To: linac-eng@plato.aristotle.net Message-id: <3CD6B4FD.5020702@ks.se> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=us-ascii Content-transfer-encoding: 7BIT X-Accept-Language: en-us, sv User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 06 May 2002 18:53:17 +0200 From: Walter Wyrsch Subject: GP8 Digitizer To: linac-eng@plato.aristotle.net Content-type: text/plain; format=flowed; charset=us-ascii X-Accept-Language: en-us, sv User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hej , we are looking for an old GP8 digitizer from SAC. Contact me by e-mail: walter.wyrsch@ks.se 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 09 00:35:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 175a1n-00009t-00; Thu, 09 May 2002 00:35:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DDAF11112F3; Thu, 9 May 2002 01:35:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA07728 for linac-eng-list; Wed, 8 May 2002 17:07:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA07723 for ; Wed, 8 May 2002 17:06:57 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA13759 for ; Thu, 9 May 2002 09:50:42 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Thu, 9 May 2002 10:09:53 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Thu, 09 May 2002 10:06:07 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 09 May 2002 10:05:56 +1200 From: "Dave Pinchin" To: Subject: Re: space requirement for Linac service engineer Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA07724 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 09 May 2002 10:05:56 +1200 From: "Dave Pinchin" To: Subject: Re: space requirement for Linac service engineer Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA07724 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, I agree with Randy. The only thing certain is that your machine load will grow and the storage space for bits will grow and your physics people will get more toys (scanning tanks, TSET frames, Special beds for TBIs etc.) One piece of kit that's very useful is some sort of floor crane. Plan with ample extra space. It is not a bad idea to allow it to fill with bits you don't want to throw out. This then looks like it's fully utilised and will discourage other groups from pinching it. Another (political) issue is that the other groups (Docs and therapists and admin) WILL also expand and as they havn't allowed extra will pinch some of your office/store. Having some to trade with is essential if you wish to remain on site and not in the remote corner of the boiler house. It also gets you 'Brownie Points' when you trim down your essential space to allow your collegues to store stuff in your store. "It's life Jim, but not as we know it" I think I've been in this place too long, I'm getting cynical. Dave. >>> "Rick Smith" 9/05/02 02:47:02 >>> We are setting up for our first Linear Accelerator and are designing the workshop/office/storage for the inhouse service engineer. Are there recommendations for square footage or room layout which you can share, or comments generally. We have selected a varian 21ex with 100leaf MLC and will need to store parts kits, manuals and tools etc. Please respond on or off the list, this topic may be of interest to others. Thanks Rick Smith Queen Elizabeth Hospital Charlottetown PEI Canada ersmith@ihis.org ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. 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Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 09 16:30:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 175ow5-0002fj-00; Thu, 09 May 2002 16:30:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 381961112F3; Thu, 9 May 2002 17:30:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA24636 for linac-eng-list; Thu, 9 May 2002 08:54:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA24630; Thu, 9 May 2002 08:54:27 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id JAA05548; Thu, 9 May 2002 09:48:29 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma005427; Thu, 9 May 02 09:47:50 -0400 Subject: Re: space requirement for Linac service engineer To: "Rick Smith" Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Thu, 9 May 2002 08:53:09 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 05/09/2002 08:53:09 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Re: space requirement for Linac service engineer To: "Rick Smith" Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net Date: Thu, 9 May 2002 08:53:09 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 05/09/2002 08:53:09 AM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Rick.... Just thought I'd throw in my two cents ....... Cause as we've grown it seems that growth has invaded my storage and office area.. I don't want to sound bitter for we know that we're all "team players" Get all the space you can ..... It will help later ..Currently my office and storage is located in a 16'x16' room, its seems that the folks around here feel when they no longer need something they send it to Larry ( He'll take anything) Parts can and do take up space, test equipment does also and you really need bench space as there are times when you can work in vault. I don,t know if there is any defined requirements for Linac service engineers its probably more like do the best you can and take what you get.....My office and storage came as a result that no one else wanted the space, its kind of out of the way.. We added more lights and power outlets and lockable cabinets for parts and supplies it seems there are many keys to my area and things left out can and do disappear. We also have a full bathroom in the area with shower and deep sink with a range hood with exhaust fan over the sink for fumes or such.. I can't think of anything else hope this helps. Larry Sullivan Baptist Hospital Pensacola FL 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 09 19:38:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 175rrk-0003Bx-00; Thu, 09 May 2002 19:38:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 35EFE1112F3; Thu, 9 May 2002 20:37:53 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA05826 for linac-eng-list; Thu, 9 May 2002 11:58:52 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA05822 for ; Thu, 9 May 2002 11:58:50 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: space requirement for Linac service engineer Date: Thu, 9 May 2002 12:58:14 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386A1@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: space requirement for Linac service engineer Thread-Index: AcH2tmLqlX91Ba4JTGCN4P05Gph6fAAwK0XQ From: "Tim Cullen" To: "Rick Smith" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA05823 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: space requirement for Linac service engineer Date: Thu, 9 May 2002 12:58:14 -0400 Thread-Topic: space requirement for Linac service engineer Thread-Index: AcH2tmLqlX91Ba4JTGCN4P05Gph6fAAwK0XQ From: "Tim Cullen" To: "Rick Smith" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA05823 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Rick, We are very limited on space here. That is usually when you adapt and improvise. I have done this is by purchasing the Stanley Storage units which can be customized to fit your application. They are high density storage cabinetry and very well built. I plan on doubling to tripling what I have now when we move into a new center about a year or so from now. I think if you stick to around 300 sq ft for a work/parts/manuals/test equipment storage area you will have enough for future expansion. If you only intend to have one engineer and one linac, with no plans for expansion, then you could cut this in half easily. Now if the physics staff do not have their own storage that's another story altogether. You should also have a very sturdy work bench, I think I got that from Stanley too. In the new building I have plans for a large wash sink in the work area and another work bench just for a vise and doing some of the heavier work.. Another thing to mention is that this does not include an office area. My preference is to keep them separate, kinda like a clean area and a work area. Tim Cullen > -----Original Message----- > From: Rick Smith [mailto:ersmith@ihis.org] > Sent: Wednesday, May 08, 2002 10:47 AM > To: linac-eng@plato.aristotle.net > Subject: space requirement for Linac service engineer > > > We are setting up for our first Linear Accelerator and are > designing the workshop/office/storage for the inhouse service > engineer. Are there recommendations for square footage or > room layout which you can share, or comments generally. We > have selected a varian 21ex with 100leaf MLC and will need to > store parts kits, manuals and tools etc. > > Please respond on or off the list, this topic may be of > interest to others. > > Thanks > Rick Smith > Queen Elizabeth Hospital > Charlottetown PEI Canada > ersmith@ihis.org > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 10 02:46:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 175yYN-0004L4-00; Fri, 10 May 2002 02:46:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 363FF1112F5; Fri, 10 May 2002 03:46:19 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA07545 for linac-eng-list; Thu, 9 May 2002 19:14:17 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA07541 for ; Thu, 9 May 2002 19:14:13 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id LAA04053 for ; Fri, 10 May 2002 11:58:01 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 10 May 2002 12:17:18 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 10 May 2002 12:13:31 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 10 May 2002 12:13:25 +1200 From: "Dave Pinchin" To: Subject: Superficial tubes Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA07542 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 10 May 2002 12:13:25 +1200 From: "Dave Pinchin" To: Subject: Superficial tubes Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA07542 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day all, Sorry to get back onto an old issue but....... Does anybody know of a mod for a RT100 that allows a new tube (eg machlett) to be jammed in???? Dave ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 10 16:58:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 176Bqw-0002M6-00; Fri, 10 May 2002 16:58:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AFBE01112F3; Fri, 10 May 2002 17:58:17 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA11239 for linac-eng-list; Fri, 10 May 2002 09:11:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA11235 for ; Fri, 10 May 2002 09:11:13 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g4AEAfm20212 for ; Fri, 10 May 2002 10:10:41 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BB5.004DB65D ; Fri, 10 May 2002 10:08:49 -0400 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256BB5.004DB41C.00@mail.lrcc.on.ca> Date: Fri, 10 May 2002 10:08:42 -0400 Subject: Varian Gantry wind up cables Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Fri, 10 May 2002 10:08:42 -0400 Subject: Varian Gantry wind up cables Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello List: We have had a couple of cables break on our 2100C3 sn 1157 and 1158. We have another C3 that is older and has had no cable problems. And we have 2 real old C1's that are about 14 years and again no problem with cables. What is the collective experience with sn1100'sh 2100C3's, any ideas or modifications that have helped the problem? Or things that may make it worse!? Thanks Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 10 17:59:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 176Cny-0002mB-00; Fri, 10 May 2002 17:59:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 775931112F3; Fri, 10 May 2002 18:59:17 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA13453 for linac-eng-list; Fri, 10 May 2002 10:33:40 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA13449 for ; Fri, 10 May 2002 10:33:38 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g4AFXNeu439222; Fri, 10 May 2002 11:33:23 -0400 Message-ID: <3CDBE6D3.A51D8242@hsc.vcu.edu> Date: Fri, 10 May 2002 11:27:15 -0400 From: "Christopher L. Bartee" X-Mailer: Mozilla 4.78 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Randy.McVittie@lrcc.on.ca Cc: linac-eng@plato.aristotle.net Subject: Re: Varian Gantry wind up cables References: <85256BB5.004DB41C.00@mail.lrcc.on.ca> Content-Type: multipart/mixed; boundary="------------029D43F60037B651E439AD58" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 10 May 2002 11:27:15 -0400 From: "Christopher L. Bartee" X-Accept-Language: en To: Randy.McVittie@lrcc.on.ca Cc: linac-eng@plato.aristotle.net Subject: Re: Varian Gantry wind up cables Content-Type: multipart/mixed; boundary="------------029D43F60037B651E439AD58" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------029D43F60037B651E439AD58 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit My experience has been that when Varian installs the machines the ty wrap the cable coming thought the wind up to tight. The place i'm talking about is right behind the PVC pipe. When they tywrap tight as the gantry rotates it the small cable in the bundle have to follow the larger ones. I usually cut that tywrap and fan them out, and have had no cable problems. Just a thought. Chris Bartee Randy.McVittie@lrcc.on.ca wrote: > Hello List: > > We have had a couple of cables break on our 2100C3 sn 1157 and 1158. > We have another C3 that is older and has had no cable problems. > And we have 2 real old C1's that are about 14 years and again no problem with > cables. > > What is the collective experience with sn1100'sh 2100C3's, any ideas or > modifications that > have helped the problem? Or things that may make it worse!? > > Thanks > > Randy McVittie > London Regional Cancer Centre --------------029D43F60037B651E439AD58 Content-Type: text/x-vcard; charset=us-ascii; name="clbartee.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Christopher L. Bartee Content-Disposition: attachment; filename="clbartee.vcf" begin:vcard n:Bartee;Christopher tel;work:804-628-0977 x-mozilla-html:FALSE org:Virginia Commonwealth University;Department of Radiation Oncology version:2.1 email;internet:Clbartee@hsc.vcu.edu title:Research Associate adr;quoted-printable:;;Medical College of Virginia=0D=0A401 College St;Richmond ;Virginia;23298-0058; fn:Christopher Bartee end:vcard --------------029D43F60037B651E439AD58-- 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat May 11 06:52:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 176OrT-0005sG-00; Sat, 11 May 2002 06:52:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B7141112F3; Sat, 11 May 2002 07:51:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA03070 for linac-eng-list; Fri, 10 May 2002 23:22:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id XAA03066 for ; Fri, 10 May 2002 23:21:59 -0500 (CDT) Received: (qmail 10248 invoked from network); 11 May 2002 04:15:49 -0000 Received: from unknown (HELO webmaill05) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 11 May 2002 04:15:49 -0000 Message-ID: <4104822.1021090550193.JavaMail.root@webmaill05> Date: Sat, 11 May 2002 12:15:50 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: [None] Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 11 May 2002 12:15:50 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: [None] Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Don't know if anyone has done this. But maybe too bored while collecting beam data, I noted down the jaw pot voltages as noted from the sservice monitor against different jaw positions. Here are the relationship: Pot voltage (in volt) = 0.386 x jaw position (in cm) - 0.019 for Y1 and Y2. Pot voltage (in volt) = 0.869 x jaw position (in cm) - 7.8 for X1 and X2. Jaw position refers to the isoplane reading. These should be very close to any machine. For X1 and X2, pot voltage is 0.0 when at 9 cm at isoplane. For Y1 and Y2, pot voltage is 0.0 when at 0 cm. I use this to trouble-shoot those intermittent HWFA (mis-matched Y1 and Y2). Jonathan Chan Queen Mary Hospital HONG KONG 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat May 11 06:52:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 176Orb-0005sJ-00; Sat, 11 May 2002 06:52:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B309F1112F3; Sat, 11 May 2002 07:51:46 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA03043 for linac-eng-list; Fri, 10 May 2002 23:19:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id XAA03039 for ; Fri, 10 May 2002 23:19:28 -0500 (CDT) Received: (qmail 5943 invoked from network); 11 May 2002 03:59:49 -0000 Received: from unknown (HELO webmail06) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 11 May 2002 03:59:49 -0000 Message-ID: <354922.1021089387055.JavaMail.root@webmail06> Date: Sat, 11 May 2002 11:56:27 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Re: Varian Gantry wind up cables Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 11 May 2002 11:56:27 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Re: Varian Gantry wind up cables Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Or their factory guys when running the cables from stand to gantry, they already twisted the cables, and when the gantry rotate in the same direction of the twist, woo.... This did happen, and may still be happening. -----Original Message----- From: "Christopher L. Bartee" Sent: Fri May 10 23:27:15 HKT 2002 To: "Randy.McVittie@lrcc.on.ca" Cc: "Randy.McVittie@lrcc.on.ca" Subject: Re: Varian Gantry wind up cables My experience has been that when Varian installs the machines the ty wrap the cable coming thought the wind up to tight. The place i'm talking about is right behind the PVC pipe. When they tywrap tight as the gantry rotates it the small cable in the bundle have to follow the larger ones. I usually cut that tywrap and fan them out, and have had no cable problems. Just a thought. Chris Bartee Randy.McVittie@lrcc.on.ca wrote: > Hello List: > > We have had a couple of cables break on our 2100C3 sn 1157 and 1158. > We have another C3 that is older and has had no cable problems. > And we have 2 real old C1's that are about 14 years and again no problem with > cables. > > What is the collective experience with sn1100'sh 2100C3's, any ideas or > modifications that > have helped the problem? Or things that may make it worse!? > > Thanks > > Randy McVittie > London Regional Cancer Centre << File: clbartee.vcf >> 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon May 13 11:30:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177C9s-0001kJ-00; Mon, 13 May 2002 11:30:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9D4EE1112F5; Mon, 13 May 2002 12:29:40 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA22372 for linac-eng-list; Mon, 13 May 2002 04:04:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA22368 for ; Mon, 13 May 2002 04:04:45 -0500 (CDT) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Mon, 13 May 2002 11:04:41 +0200 Message-ID: To: linac-eng@plato.aristotle.net Cc: AJ.de.Looff@walcheren.ziekenhuis.nl Subject: spam Date: Mon, 13 May 2002 11:04:40 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato.aristotle.net Cc: AJ.de.Looff@walcheren.ziekenhuis.nl Subject: spam Date: Mon, 13 May 2002 11:04:40 +0200 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi, My colleague asked me after his holliday: "where is the spam?" Indeed, the spam has gone. Thanks to who managed that! But last month I also could not reach the list. Is there a connection? Regards, Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon May 13 13:55:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177EQ5-0004N1-00; Mon, 13 May 2002 13:55:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B0CB81112F9; Mon, 13 May 2002 14:54:32 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA24594 for linac-eng-list; Mon, 13 May 2002 06:34:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA24590 for ; Mon, 13 May 2002 06:34:03 -0500 (CDT) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 177E5Y-0005xc-00; Mon, 13 May 2002 12:34:00 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3CDDDDDB00010936 for linac-eng@plato.aristotle.net; Mon, 13 May 2002 12:34:00 +0100 Received: from mailsweeper.suht.swest.nhs.uk (194.189.32.135) by relay.nhs.uk (Syntegra-4 6.5.016) id 3CDDDC210001516B for linac-eng@plato.aristotle.net; Mon, 13 May 2002 12:34:00 +0100 Received: from mail.suht.swest.nhs.uk (unverified) by mailsweeper.suht.swest.nhs.uk (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Mon, 13 May 2002 12:30:29 +0100 Received: from SGH-Message_Server by mail.suht.swest.nhs.uk with Novell_GroupWise; Mon, 13 May 2002 12:33:59 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Mon, 13 May 2002 12:33:18 +0100 From: "John McKechnie" To: Subject: Falmer Baldwin Cables Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA24591 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 13 May 2002 12:33:18 +0100 From: "John McKechnie" To: Subject: Falmer Baldwin Cables Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA24591 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello list, Does anyone (preferably in the UK) have a name, number, address for a supplier of the triax cables and connectors used on Falmer Baldwins dosimetry equipment. We are having trouble sourcing these at a reasonable price/ delivery lead time. Thanks in advance, John. John McKechnie Head of Radiotherapy Electronics Wessex Radiotherapy Centre Royal Southants Hospital Brintons Terrace (Off St. Mary's Road) Southampton SO14 OYG Tel. 023 8082 5708 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please Delete the E-mail and contact the Southampton University Hospitals NHS Trust Helpdesk on:- 023 80796000. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 08:59:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177WH1-0007hu-00; Tue, 14 May 2002 08:59:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E4D7A1112FA; Tue, 14 May 2002 09:58:16 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id BAA20243 for linac-eng-list; Tue, 14 May 2002 01:36:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id BAA20239 for ; Tue, 14 May 2002 01:36:26 -0500 (CDT) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Tue, 14 May 2002 8:36:20 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Tue, 14 May 2002 08:36:20 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A707@exchange-5.orebroll.se> To: linac-eng@plato.aristotle.net Subject: SV: Varian Gantry wind up cables Date: Tue, 14 May 2002 08:36:13 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA20240 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: linac-eng@plato.aristotle.net Subject: SV: Varian Gantry wind up cables Date: Tue, 14 May 2002 08:36:13 +0200 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA20240 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi, In our installations the cables could 1) rub on a square section of girder in the chassis and 2) rub on the rotating joints. This initially gave us problems of wearing out first the insulation then the screens then the wires in the cables. This we've solved by wrapping plastic around the whole bunch of cables and cable tying the cladding through holes made with a soldering iron in the cladding. I used cut up plastic bottles of about 10L as the source of the plastic. Seems pretty smooth and hard wearing and we haven't had those problems since. I've used the same solution on Bmag cables which can rub against sections of the chassis on their way up to the head. Hope this helps Tel. -----Ursprungligt meddelande----- Från: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Skickat: den 10 maj 2002 16:09 Till: linac-eng@plato.aristotle.net Ämne: Varian Gantry wind up cables Hello List: We have had a couple of cables break on our 2100C3 sn 1157 and 1158. We have another C3 that is older and has had no cable problems. And we have 2 real old C1's that are about 14 years and again no problem with cables. What is the collective experience with sn1100'sh 2100C3's, any ideas or modifications that have helped the problem? Or things that may make it worse!? Thanks Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 18:40:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177fLL-0000Nc-00; Tue, 14 May 2002 18:40:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9377E1112FA; Tue, 14 May 2002 19:39:17 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA01686 for linac-eng-list; Tue, 14 May 2002 11:11:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server108.phsa.ca (mail.bccancer.bc.ca [209.139.228.218]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA01681 for ; Tue, 14 May 2002 11:11:06 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254]) by server108.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Tue, 14 May 2002 09:12:45 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Tue, 14 May 2002 09:06:25 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA01932EE@SERVER20> From: Glen Owen To: "'linac-eng@plato.aristotle.net'" Subject: Varian Millennium MLC leadscrews Date: Tue, 14 May 2002 09:11:14 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 14 May 2002 16:12:45.0181 (UTC) FILETIME=[2EB11AD0:01C1FB62] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Glen Owen To: "'linac-eng@plato.aristotle.net'" Subject: Varian Millennium MLC leadscrews Date: Tue, 14 May 2002 09:11:14 -0700 Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 14 May 2002 16:12:45.0181 (UTC) FILETIME=[2EB11AD0:01C1FB62] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi all, I was wondering if any one has found a second source for the small ball bearings used on the half leaf and full leaf MLC leadscrews? Varian will not sell the bearings, just the entire leadscrew. We have been changing a lot of half and full leaf leadscrews lately due to faulty bearings, the leadscrew itself is still in good condition. We would like to have our machinists rebuild the leadscrews with new bearings. Initially we were changing a lot of half and full leaf motors, but eventually we found that the leadscrews were causing problems as well, and possibly even causing problems with the motors. We have 2 - 120 leaf Millennium MLC's and 4 - 80 leaf Millennium MLC's. Thanks, Glen Glen Owen Physics Department B.C. Cancer Agency Vancouver Island Centre 2410 Lee Avenue Victoria, BC, Canada V9B 6V5 Ph: 250-519-5630 Fax: 250-519-2024 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 19:49:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177gQH-0000yS-00; Tue, 14 May 2002 19:49:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 180E31112FA; Tue, 14 May 2002 20:48:27 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA17251 for linac-eng-list; Tue, 14 May 2002 12:27:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca ([204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA17223 for ; Tue, 14 May 2002 12:27:05 -0500 (CDT) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA02218; Tue, 14 May 2002 11:33:31 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3CE148FB.9A435D2@scf.sk.ca> Date: Tue, 14 May 2002 11:27:24 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: Glen Owen , "Linac-Engineers, Listserver" Subject: Re: Varian Millennium MLC leadscrews References: <6BAF4D075F07D411B30900508B94CBA01932EE@SERVER20> Content-Type: multipart/mixed; boundary="------------EA1CDB5EABF8EBD442C4B67C" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 14 May 2002 11:27:24 -0600 From: Chris Barnardo X-Accept-Language: en To: Glen Owen , "Linac-Engineers, Listserver" Subject: Re: Varian Millennium MLC leadscrews Content-Type: multipart/mixed; boundary="------------EA1CDB5EABF8EBD442C4B67C" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------EA1CDB5EABF8EBD442C4B67C Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi Everyone We beleive we have the bearing part numbers. Our MLC is a Millenium 120 Leaf. We have only recently sourced them and haven't had time to fit them in the machine. We have, however, measured them and they seem to be identical. We have sourced them from Bearing and Transmission LTD here in Saskatoon: The Numbers are: Full Leaf Screw Flanged - MF685-ZZ Un flanged - MR685-ZZ Half Leaf Screw Flanged - FR2-5ZZ Un Flanged - R2-5ZZ I hope this helps. As I say we have not tried them in the machine, but have just received sample bearings. I can report back when we have tried them. Glen Owen wrote: > Hi all, > > I was wondering if any one has found a second source for the small ball > bearings used on the half leaf and full leaf MLC leadscrews? Varian will not > sell the bearings, just the entire leadscrew. We have been changing a lot of > half and full leaf leadscrews lately due to faulty bearings, the leadscrew > itself is still in good condition. We would like to have our machinists > rebuild the leadscrews with new bearings. Initially we were changing a lot > of half and full leaf motors, but eventually we found that the leadscrews > were causing problems as well, and possibly even causing problems with the > motors. We have 2 - 120 leaf Millennium MLC's and 4 - 80 leaf Millennium > MLC's. > > Thanks, > Glen > > Glen Owen > Physics Department > B.C. Cancer Agency > Vancouver Island Centre > 2410 Lee Avenue > Victoria, BC, Canada > V9B 6V5 > Ph: 250-519-5630 > Fax: 250-519-2024 --------------EA1CDB5EABF8EBD442C4B67C Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------EA1CDB5EABF8EBD442C4B67C-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 21:10:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177hgm-0001pk-00; Tue, 14 May 2002 21:10:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0D8541112FA; Tue, 14 May 2002 22:09:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA02742 for linac-eng-list; Tue, 14 May 2002 13:47:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from chs-exchsv2.covhealth.com ([199.250.70.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA02738 for ; Tue, 14 May 2002 13:47:35 -0500 (CDT) Message-ID: <293B6F21E62CD411BEC400508BD681B2414BDC@chs-exchsv2.covhealth.com> From: "Lockhart, Ryan" To: "'Linac-Eng@plato.aristotle.net'" Subject: MLC Date: Tue, 14 May 2002 13:48:34 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lockhart, Ryan" To: "'Linac-Eng@plato.aristotle.net'" Subject: MLC Date: Tue, 14 May 2002 13:48:34 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We are about to take delivery of a 2100ex machine with MLC. This will be our first machine with MLC. Can anybody give me general guidelines for maintaining the MLC? I would like to know what I should be doing for MLC pm work and also any common problems that may arise. I will be going to the TMII and MLC class sometime next year, but for now I would just like some point to start from. Thank you very much. Ryan Lockhart Biomedical Engineering Department Covenant Medical Center 3421 W. 9th St. Waterloo, IA 50702 Phone: 319.272.8058 Fax: 319.272.8055 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 21:15:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177hls-0001q7-00; Tue, 14 May 2002 21:15:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9E5961112FA; Tue, 14 May 2002 22:14:50 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA02891 for linac-eng-list; Tue, 14 May 2002 13:56:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r01.mx.aol.com (imo-r01.mx.aol.com [152.163.225.97]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA02887 for ; Tue, 14 May 2002 13:56:56 -0500 (CDT) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-r01.mx.aol.com (mail_out_v32.5.) id y.11e.10a4b312 (17080) for ; Tue, 14 May 2002 14:56:20 -0400 (EDT) Message-ID: <11e.10a4b312.2a12b7d3@aol.com> Date: Tue, 14 May 2002 14:56:19 EDT Subject: 2100EX KFIL (REG) C/B TRIPS To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10503 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Tue, 14 May 2002 14:56:19 EDT Subject: 2100EX KFIL (REG) C/B TRIPS To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Everyone ... We are experiencing intermittent KFIL faults on a 2100 EX. I have seen mention that this may be due to a capacitor that has been installed in the filament circuit and that the manufacturer removes the cap to solve the problem. If that's the case, where is the cap located? Has anyone experienced this problem? What was the cure? Thanks in advance for your assistance. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 21:21:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177hr7-0001qQ-00; Tue, 14 May 2002 21:21:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E1B371112FA; Tue, 14 May 2002 22:20:14 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA03063 for linac-eng-list; Tue, 14 May 2002 14:02:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m04.mx.aol.com (imo-m04.mx.aol.com [64.12.136.7]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA03059 for ; Tue, 14 May 2002 14:02:53 -0500 (CDT) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-m04.mx.aol.com (mail_out_v32.5.) id y.bf.204d834c (17080) for ; Tue, 14 May 2002 15:02:05 -0400 (EDT) Message-ID: Date: Tue, 14 May 2002 15:02:05 EDT Subject: EXACT (R) Couch Insert To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10503 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Tue, 14 May 2002 15:02:05 EDT Subject: EXACT (R) Couch Insert To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Everyone: We are experiencing problems with the EXACT(R) Couch insert breaking. I have heard that there is a insert available from an Australian company. Has anyone tried this replacement insert? Was it satisfactory? How much did it cost? And, how can I contact the company? Thank for the assistance. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 21:48:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177iI7-000288-00; Tue, 14 May 2002 21:48:59 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0DFE31112FA; Tue, 14 May 2002 22:48:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA03940 for linac-eng-list; Tue, 14 May 2002 14:23:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d10.mx.aol.com (imo-d10.mx.aol.com [205.188.157.42]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA03936 for ; Tue, 14 May 2002 14:23:12 -0500 (CDT) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-d10.mx.aol.com (mail_out_v32.5.) id y.66.20fae660 (17080) for ; Tue, 14 May 2002 15:22:26 -0400 (EDT) Message-ID: <66.20fae660.2a12bdf2@aol.com> Date: Tue, 14 May 2002 15:22:26 EDT Subject: POSITIONS AVAILABLE To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10503 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Tue, 14 May 2002 15:22:26 EDT Subject: POSITIONS AVAILABLE To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We are looking for an experienced service manager for the Southern California area. There may also be a service engineer position available in Hawaii. Please fax your resumes to my attention at 661-257-0762. We look forward to hearing from you. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 14 23:23:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177jlO-00036y-00; Tue, 14 May 2002 23:23:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 44BB31112FA; Wed, 15 May 2002 00:22:27 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA06436 for linac-eng-list; Tue, 14 May 2002 15:32:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.lha.org ([170.122.200.53]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA06432 for ; Tue, 14 May 2002 15:32:12 -0500 (CDT) Received: FROM exchange.lha.org BY exchange.lha.org ; Tue May 14 16:31:33 2002 -0400 Received: by exchange.lha.org with Internet Mail Service (5.5.2653.19) id ; Tue, 14 May 2002 16:31:32 -0400 Message-ID: <3D998785DA22D611B68D00A0C9CDB0C00123B2C3@mail.lha.org> From: "Bitler, Richard L" To: "'GARRYANGEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100EX KFIL (REG) C/B TRIPS Date: Tue, 14 May 2002 16:31:29 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bitler, Richard L" To: "'GARRYANGEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100EX KFIL (REG) C/B TRIPS Date: Tue, 14 May 2002 16:31:29 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I had a problem with KFIL errors, but it was caused by the KFIL interlock relay contactor in the power cab. The relay in my version 2100 is K13, which was in the spare parts. You may want to check it. Rick Bitler Lancaster General Hospital > -----Original Message----- > From: GARRYANGEL@aol.com [SMTP:GARRYANGEL@aol.com] > Sent: Tuesday, May 14, 2002 14:56 > To: linac-eng@plato.aristotle.net > Subject: 2100EX KFIL (REG) C/B TRIPS > > Hi Everyone ... > > We are experiencing intermittent KFIL faults on a 2100 EX. I have seen > mention that this may be due to a capacitor that has been installed in the > > filament circuit and that the manufacturer removes the cap to solve the > problem. If that's the case, where is the cap located? > > Has anyone experienced this problem? What was the cure? > > Thanks in advance for your assistance. > > Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 14:12:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177xeE-0006oL-00; Wed, 15 May 2002 14:12:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1A0F51112FA; Wed, 15 May 2002 15:11:54 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA01322 for linac-eng-list; Wed, 15 May 2002 06:52:40 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA01318 for ; Wed, 15 May 2002 06:52:39 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g4FBq8q19983 for ; Wed, 15 May 2002 06:52:08 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g4FBq8s19979 for ; Wed, 15 May 2002 06:52:08 -0500 (CDT) Received: through eSafe SMTP Relay 1021403377; Wed May 15 06:52:08 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 15 May 2002 06:52:08 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5EC5@wmhmail.phci.org> From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: RE: MLC Date: Wed, 15 May 2002 06:52:02 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC06.ED5D42C0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: RE: MLC Date: Wed, 15 May 2002 06:52:02 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC06.ED5D42C0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1FC06.ED5D42C0 Content-Type: text/plain Hi Ryan The thing I would do is be involved with the install, and when service comes in ask questions, do the hands on MLC calibrations, PWM checks. Don't just watch. Your best source for information is the local service rep, do as much as you can before you go to school. I know this is basic service stuff, but I see in-house service afraid to get involved on installs and when the machine is under warranty, hands on is the only way. Good Luck and if I can help give me a call. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Lockhart, Ryan [SMTP:LockhartR@covhealth.com] > Sent: Tuesday, May 14, 2002 1:49 PM > To: 'Linac-Eng@plato.aristotle.net' > Subject: MLC > > We are about to take delivery of a 2100ex machine with MLC. This will be > our first machine with MLC. Can anybody give me general guidelines for > maintaining the MLC? I would like to know what I should be doing for MLC > pm > work and also any common problems that may arise. I will be going to the > TMII and MLC class sometime next year, but for now I would just like some > point to start from. Thank you very much. > > Ryan Lockhart > Biomedical Engineering Department > Covenant Medical Center > 3421 W. 9th St. > Waterloo, IA 50702 > Phone: 319.272.8058 > Fax: 319.272.8055 > ------_=_NextPart_001_01C1FC06.ED5D42C0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: MLC

    Hi Ryan

    The thing I would do i= s be involved with the install, and when service comes in ask questions, = do the hands on MLC calibrations, PWM checks.  Don't just watch. You= r best source for information is the local service rep, do as much as you= can before you go to school.

    I know this is basic s= ervice stuff, but I see in-house service afraid to get involved on instal= ls and when the machine is under warranty, hands on is the only way.

    Good Luck and if I can= help give me a call.



    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Lockhart, Ryan [SMTP:LockhartR@covhealth.com]
      Sent:   Tuesday, May 14, 2002 1:49 PM
      To:     'Linac-Eng@plato.aristotle.net'
      Subject:    &nbs= p;   MLC

      We are about to take delivery of a 2100e= x machine with MLC.  This will be
      our first machine with MLC.  Can a= nybody give me general guidelines for
      maintaining the MLC?  I would like= to know what I should be doing for MLC pm
      work and also any common problems that = may arise.  I will be going to the
      TMII and MLC class sometime next year, = but for now I would just like some
      point to start from.  Thank you ve= ry much.

      Ryan Lockhart
      Biomedical Engineering Department
      Covenant Medical Center
      3421 W. 9th St.
      Waterloo, IA  50702
      Phone:  319.272.8058
      Fax:      319.= 272.8055

    ------_=_NextPart_001_01C1FC06.ED5D42C0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 15:14:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177ybu-00083f-00; Wed, 15 May 2002 15:14:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B793C1112FA; Wed, 15 May 2002 16:13:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA02567 for linac-eng-list; Wed, 15 May 2002 07:53:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02563 for ; Wed, 15 May 2002 07:53:57 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g4FCrHm09987; Wed, 15 May 2002 08:53:17 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BBA.0046A8EC ; Wed, 15 May 2002 08:51:47 -0400 X-Lotus-FromDomain: LRCC To: GARRYANGEL@aol.com Cc: linac-eng@plato.aristotle.net Message-ID: <85256BBA.0046A720.00@mail.lrcc.on.ca> Date: Wed, 15 May 2002 08:51:42 -0400 Subject: Re: 2100EX KFIL (REG) C/B TRIPS Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: GARRYANGEL@aol.com Cc: linac-eng@plato.aristotle.net Date: Wed, 15 May 2002 08:51:42 -0400 Subject: Re: 2100EX KFIL (REG) C/B TRIPS Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have 5 C3 vintage machines here on site and I think 2 or 3 of them had wonky breakers, just replaced the breaker with a new one and no more trips. I don't think that they are that expensive $100 or less. Merlin Gerin Breakers are available from anyone who sells Square D stuff Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 15:32:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177ytG-0008PH-00; Wed, 15 May 2002 15:32:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 706DD1112FA; Wed, 15 May 2002 16:31:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA02971 for linac-eng-list; Wed, 15 May 2002 08:13:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ihis.org (peihealth.ihis.org [142.176.18.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA02967 for ; Wed, 15 May 2002 08:13:26 -0500 (CDT) Received: by peihealth.ihis.org id <115201>; Wed, 15 May 2002 10:07:33 -0300 Message-Id: <02May15.100733adt.115201@peihealth.ihis.org> X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Wed, 15 May 2002 10:09:58 -0300 From: "Rick Smith" To: Subject: T780 cobalt unit Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA02968 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 15 May 2002 10:09:58 -0300 From: "Rick Smith" To: Subject: T780 cobalt unit Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA02968 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Would any of you have an alternate source for an electromagnetic clutch assy used in the table top lateral movement of Theratronics T780 Cobalt unit? The original part # from the manufacturer Inertia Dynamics is 0724-0001 but they consider it proprietary and won't sell it to us. Theratronics part # for the assembly is A105024258. Thanks Appreciated the discussion on space allocation for service engineer, I hope to use it to obtain a more appropriate square footage. Rick Smith Queen Elizabeth Hospital Charlottetown, PE Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 16:28:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177zlj-0001MS-00; Wed, 15 May 2002 16:28:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 500D01112FA; Wed, 15 May 2002 17:27:47 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA04433 for linac-eng-list; Wed, 15 May 2002 09:03:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA04421 for ; Wed, 15 May 2002 09:03:29 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g4FE2vV24472; Wed, 15 May 2002 09:02:57 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g4FE2vs24468; Wed, 15 May 2002 09:02:57 -0500 (CDT) Received: through eSafe SMTP Relay 1021403377; Wed May 15 09:02:57 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 15 May 2002 09:02:57 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5EC6@wmhmail.phci.org> From: "Williams, Rod" To: "'Chris Barnardo'" , Glen Owen , "Linac-Engineers, Listserver" Subject: RE: Varian Millennium MLC leadscrews Date: Wed, 15 May 2002 09:02:56 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC19.36825E60" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Chris Barnardo'" , Glen Owen , "Linac-Engineers, Listserver" Subject: RE: Varian Millennium MLC leadscrews Date: Wed, 15 May 2002 09:02:56 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC19.36825E60" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1FC19.36825E60 Content-Type: text/plain Hi Chris Thanks for the information, would those parts numbers be useable buy a bearing suppler in the U.S.? Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Chris Barnardo [SMTP:cbarnardo@scf.sk.ca] > Sent: Tuesday, May 14, 2002 12:27 PM > To: Glen Owen; Linac-Engineers, Listserver > Subject: Re: Varian Millennium MLC leadscrews > > Hi Everyone > > We beleive we have the bearing part numbers. Our MLC is a Millenium > 120 > Leaf. We have only recently sourced them and haven't had time to fit them > in the > machine. We have, however, measured them and they seem to be identical. > > We have sourced them from Bearing and Transmission LTD here in > Saskatoon: > > The Numbers are: > > Full Leaf Screw Flanged - MF685-ZZ > Un flanged - MR685-ZZ > > Half Leaf Screw Flanged - FR2-5ZZ > Un Flanged - R2-5ZZ > > I hope this helps. As I say we have not tried them in the machine, but > have > just received sample bearings. I can report back when we have tried them. > > Glen Owen wrote: > > > Hi all, > > > > I was wondering if any one has found a second source for the small ball > > bearings used on the half leaf and full leaf MLC leadscrews? Varian will > not > > sell the bearings, just the entire leadscrew. We have been changing a > lot of > > half and full leaf leadscrews lately due to faulty bearings, the > leadscrew > > itself is still in good condition. We would like to have our machinists > > rebuild the leadscrews with new bearings. Initially we were changing a > lot > > of half and full leaf motors, but eventually we found that the > leadscrews > > were causing problems as well, and possibly even causing problems with > the > > motors. We have 2 - 120 leaf Millennium MLC's and 4 - 80 leaf Millennium > > MLC's. > > > > Thanks, > > Glen > > > > Glen Owen > > Physics Department > > B.C. Cancer Agency > > Vancouver Island Centre > > 2410 Lee Avenue > > Victoria, BC, Canada > > V9B 6V5 > > Ph: 250-519-5630 > > Fax: 250-519-2024 > > *** eSafe scanned this email for malicious content *** > *** IMPORTANT: Do not open attachments from unrecognized senders *** << > File: Card for Chris Barnardo >> ------_=_NextPart_001_01C1FC19.36825E60 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Varian Millennium MLC leadscrews

    Hi Chris

    Thanks for the informa= tion, would those parts numbers be useable buy a bearing suppler in the U= .S.?

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Chris Barnardo [SMTP:cbarnardo@scf.sk.ca]
      Sent:   Tuesday, May 14, 2002 12:27 PM
      To:     Glen Owen; Linac-Engineers, Listserver
      Subject:    &nbs= p;   Re: Varian Millen= nium MLC leadscrews

      Hi Everyone

          We beleive we have th= e bearing part numbers. Our MLC is a Millenium 120
      Leaf. We have only recently sourced the= m and haven't had time to fit them in the
      machine. We have, however, measured the= m and they seem to be identical.

          We have sourced them = from Bearing and Transmission LTD here in Saskatoon:

          The Numbers are:

          Full Leaf Screw Flang= ed - MF685-ZZ
            &nb= sp;           &nbs= p;         Un flanged - MR685-ZZ<= /FONT>

          Half Leaf Screw Flang= ed - FR2-5ZZ
            &nb= sp;           &nbs= p;         Un Flanged - R2-5ZZ

          I hope this helps. As= I say we have not tried them in the machine, but have
      just received sample bearings. I can re= port back when we have tried them.

      Glen Owen wrote:

      > Hi all,
      >
      > I was wondering if any one has fou= nd a second source for the small ball
      > bearings used on the half leaf and= full leaf MLC leadscrews? Varian will not
      > sell the bearings, just the entire= leadscrew. We have been changing a lot of
      > half and full leaf leadscrews late= ly due to faulty bearings, the leadscrew
      > itself is still in good condition.= We would like to have our machinists
      > rebuild the leadscrews with new be= arings. Initially we were changing a lot
      > of half and full leaf motors, but = eventually we found that the leadscrews
      > were causing problems as well, and= possibly even causing problems with the
      > motors. We have 2 - 120 leaf Mille= nnium MLC's and 4 - 80 leaf Millennium
      > MLC's.
      >
      > Thanks,
      > Glen
      >
      > Glen Owen
      > Physics Department
      > B.C. Cancer Agency
      > Vancouver Island Centre
      > 2410 Lee Avenue
      > Victoria, BC, Canada
      > V9B 6V5
      > Ph:  250-519-5630
      > Fax: 250-519-2024

      *** eSafe scanned this email for malicio= us content ***
      *** IMPORTANT: Do not open attachments = from unrecognized senders  *** << File: Card for Chris Barnard= o >>

    ------_=_NextPart_001_01C1FC19.36825E60-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 16:34:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 177zrh-0001QF-00; Wed, 15 May 2002 16:34:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4CE771112FA; Wed, 15 May 2002 17:33:57 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA04741 for linac-eng-list; Wed, 15 May 2002 09:16:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA04737 for ; Wed, 15 May 2002 09:16:04 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g4FEFXV24995; Wed, 15 May 2002 09:15:33 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g4FEFXs24991; Wed, 15 May 2002 09:15:33 -0500 (CDT) Received: through eSafe SMTP Relay 1021403377; Wed May 15 09:15:33 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 15 May 2002 09:15:33 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5EC7@wmhmail.phci.org> From: "Williams, Rod" To: "'Glen Owen'" , "'linac-eng@plato.aristotle.net'" Subject: RE: Varian Millennium MLC leadscrews Date: Wed, 15 May 2002 09:15:32 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC1A.F94C9720" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Glen Owen'" , "'linac-eng@plato.aristotle.net'" Subject: RE: Varian Millennium MLC leadscrews Date: Wed, 15 May 2002 09:15:32 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC1A.F94C9720" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1FC1A.F94C9720 Content-Type: text/plain Hi Glen I wonder if you might be changing the leadscrews to often. I know that Varian used to and maybe still do use the the feel the bearings when they are out of the carriage to determine if they were bad by the feel of them. I have tried to loosen up the nut that hold the bearings together, and found that by decreasing the torque they will smooth out, also I look at the PWM for the leafs to decide if that leaf needs attention. I have changed 2 leadsscrews in the last 3 years in three 120 MLC machines. The diagLeafTest PWMOne is the best way I found to reduce motor failures. Good Luck Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Glen Owen [SMTP:GOwen@bccancer.bc.ca] > Sent: Tuesday, May 14, 2002 11:11 AM > To: 'linac-eng@plato.aristotle.net' > Subject: Varian Millennium MLC leadscrews > > Hi all, > > I was wondering if any one has found a second source for the small ball > bearings used on the half leaf and full leaf MLC leadscrews? Varian will > not > sell the bearings, just the entire leadscrew. We have been changing a lot > of > half and full leaf leadscrews lately due to faulty bearings, the leadscrew > itself is still in good condition. We would like to have our machinists > rebuild the leadscrews with new bearings. Initially we were changing a lot > of half and full leaf motors, but eventually we found that the leadscrews > were causing problems as well, and possibly even causing problems with the > motors. We have 2 - 120 leaf Millennium MLC's and 4 - 80 leaf Millennium > MLC's. > > Thanks, > Glen > > > Glen Owen > Physics Department > B.C. Cancer Agency > Vancouver Island Centre > 2410 Lee Avenue > Victoria, BC, Canada > V9B 6V5 > Ph: 250-519-5630 > Fax: 250-519-2024 ------_=_NextPart_001_01C1FC1A.F94C9720 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Varian Millennium MLC leadscrews

    Hi Glen

    I wonder if you might = be changing the leadscrews to often. I know that Varian used to and maybe= still do use the the feel the bearings when they are out of the carriage= to determine if they were bad by the feel of them. I have tried to loose= n up the nut that hold the bearings together, and found that by decreasin= g the torque they will smooth out, also I look at the PWM for the leafs t= o decide if that leaf needs attention.  I have changed 2 leadsscrews= in the last 3 years in three 120 MLC machines. The diagLeafTest PWMOne i= s the best way I found to reduce motor failures.

    Good Luck

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Glen Owen [SMTP:GOwen@bccancer.bc.ca]
      Sent:   Tuesday, May 14, 2002 11:11 AM
      To:     'linac-eng@plato.aristotle.net'
      Subject:    &nbs= p;   Varian Millennium= MLC leadscrews

      Hi all,

      I was wondering if any one has found a s= econd source for the small ball
      bearings used on the half leaf and full= leaf MLC leadscrews? Varian will not
      sell the bearings, just the entire lead= screw. We have been changing a lot of
      half and full leaf leadscrews lately du= e to faulty bearings, the leadscrew
      itself is still in good condition. We w= ould like to have our machinists
      rebuild the leadscrews with new bearing= s. Initially we were changing a lot
      of half and full leaf motors, but event= ually we found that the leadscrews
      were causing problems as well, and poss= ibly even causing problems with the
      motors. We have 2 - 120 leaf Millennium= MLC's and 4 - 80 leaf Millennium
      MLC's.

      Thanks,
      Glen


      Glen Owen
      Physics Department
      B.C. Cancer Agency
      Vancouver Island Centre
      2410 Lee Avenue
      Victoria, BC, Canada
      V9B 6V5
      Ph:  250-519-5630
      Fax: 250-519-2024

    ------_=_NextPart_001_01C1FC1A.F94C9720-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 16:59:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1780FJ-000204-00; Wed, 15 May 2002 16:59:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 72EEC1112F1; Wed, 15 May 2002 17:58:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA05630 for linac-eng-list; Wed, 15 May 2002 09:39:11 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca ([204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA05626 for ; Wed, 15 May 2002 09:39:04 -0500 (CDT) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA03354; Wed, 15 May 2002 08:45:31 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3CE27321.7A80AFB2@scf.sk.ca> Date: Wed, 15 May 2002 08:39:30 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Linac-Engineers, Listserver" Subject: [Fwd: Varian Millennium MLC lead screws] Content-Type: multipart/mixed; boundary="------------FB2B7BFD71DC620BA3504B58" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 15 May 2002 08:39:30 -0600 From: Chris Barnardo X-Accept-Language: en To: "Linac-Engineers, Listserver" Subject: [Fwd: Varian Millennium MLC lead screws] Content-Type: multipart/mixed; boundary="------------FB2B7BFD71DC620BA3504B58" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------FB2B7BFD71DC620BA3504B58 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit "Nelson, Steve" wrote: > Chris, > You are right on track, however, the bearings I ordered are > stainless, and therefore have an "S" in front of the part number. i.e. > SMF685-ZZ > > regards , > > Stephen J. Nelson MSEE > Instructor > Department of Radiation Oncology > Medical University of SC > 171 Ashley Ave. > Charleston, SC 29425 > 843-792-3271 > > -----Original Message----- > From: Chris Barnardo [mailto:cbarnardo@scf.sk.ca] > Sent: Tuesday, May 14, 2002 1:27 PM > To: Glen Owen; Linac-Engineers, Listserver > Subject: Re: Varian Millennium MLC leadscrews > > Hi Everyone > > We beleive we have the bearing part numbers. Our MLC is a Millenium 120 > Leaf. We have only recently sourced them and haven't had time to fit them in > the > machine. We have, however, measured them and they seem to be identical. > > We have sourced them from Bearing and Transmission LTD here in > Saskatoon: > > The Numbers are: > > Full Leaf Screw Flanged - MF685-ZZ > Un flanged - MR685-ZZ > > Half Leaf Screw Flanged - FR2-5ZZ > Un Flanged - R2-5ZZ > > I hope this helps. As I say we have not tried them in the machine, but > have > just received sample bearings. I can report back when we have tried them. > > Glen Owen wrote: > > > Hi all, > > > > I was wondering if any one has found a second source for the small ball > > bearings used on the half leaf and full leaf MLC leadscrews? Varian will > not > > sell the bearings, just the entire leadscrew. We have been changing a lot > of > > half and full leaf leadscrews lately due to faulty bearings, the leadscrew > > itself is still in good condition. We would like to have our machinists > > rebuild the leadscrews with new bearings. Initially we were changing a lot > > of half and full leaf motors, but eventually we found that the leadscrews > > were causing problems as well, and possibly even causing problems with the > > motors. We have 2 - 120 leaf Millennium MLC's and 4 - 80 leaf Millennium > > MLC's. > > > > Thanks, > > Glen > > > > Glen Owen > > Physics Department > > B.C. Cancer Agency > > Vancouver Island Centre > > 2410 Lee Avenue > > Victoria, BC, Canada > > V9B 6V5 > > Ph: 250-519-5630 > > Fax: 250-519-2024 --------------FB2B7BFD71DC620BA3504B58 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------FB2B7BFD71DC620BA3504B58-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 17:04:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1780Km-00024q-00; Wed, 15 May 2002 17:04:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 818631112F1; Wed, 15 May 2002 18:04:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA05782 for linac-eng-list; Wed, 15 May 2002 09:43:52 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca ([204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA05772 for ; Wed, 15 May 2002 09:43:50 -0500 (CDT) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA03523; Wed, 15 May 2002 08:50:18 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-Id: <3CE27441.DAAC8167@scf.sk.ca> Date: Wed, 15 May 2002 08:44:17 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en Mime-Version: 1.0 To: "Nelson, Steve" , "Linac-Engineers, Listserver" Subject: Re: Varian Millennium MLC lead screws References: <0758E63D5DEC3B458FF43D068F1CC736018860@xchange.RadOnc.MUSC.EDU> Content-Type: multipart/mixed; boundary="------------4AEF12AF5654E806465EFC39" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 15 May 2002 08:44:17 -0600 From: Chris Barnardo X-Accept-Language: en To: "Nelson, Steve" , "Linac-Engineers, Listserver" Subject: Re: Varian Millennium MLC lead screws Content-Type: multipart/mixed; boundary="------------4AEF12AF5654E806465EFC39" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------4AEF12AF5654E806465EFC39 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi People: I notice that some people are still using the old address for the linac listserver. Please check your address book and make sure your address is to "plato" NOT "plato1". The plato1 address does not work any more, so the new address is: linac-eng@plato.aristotle.net Hopefully this helps everyone who is experiencing problems sending messages. --------------4AEF12AF5654E806465EFC39 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------4AEF12AF5654E806465EFC39-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 18:12:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1781Ny-0003Vv-00; Wed, 15 May 2002 18:12:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 739CA1112F1; Wed, 15 May 2002 19:11:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA08483 for linac-eng-list; Wed, 15 May 2002 10:46:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from larch.cc.uic.edu (larch.cc.uic.edu [128.248.155.164]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA08479 for ; Wed, 15 May 2002 10:46:17 -0500 (CDT) Received: (qmail 18620 invoked from network); 15 May 2002 15:46:13 -0000 Received: from uimcc53.hospital.uic.edu (128.248.114.93) by larch.cc.uic.edu with SMTP; 15 May 2002 15:46:13 -0000 Received: by uimcc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id <2517H4AV>; Wed, 15 May 2002 10:48:47 -0500 Message-ID: From: "Bisevac, Simeon" To: "'GARRYANGEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100EX KFIL (REG) C/B TRIPS Date: Wed, 15 May 2002 10:48:47 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bisevac, Simeon" To: "'GARRYANGEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: 2100EX KFIL (REG) C/B TRIPS Date: Wed, 15 May 2002 10:48:47 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Everyone; Garry, the filter is located in the pulse tank at the connector numbered J7. To get to the filter you have to remove the four screws securing the connnector to the pulse tank and then you can lift the connector out of the pulse tank and see the filter. It may be tight but you should have enough slack. Simeon -----Original Message----- From: GARRYANGEL@aol.com [mailto:GARRYANGEL@aol.com] Sent: Tuesday, May 14, 2002 1:56 PM To: linac-eng@plato.aristotle.net Subject: 2100EX KFIL (REG) C/B TRIPS Hi Everyone ... We are experiencing intermittent KFIL faults on a 2100 EX. I have seen mention that this may be due to a capacitor that has been installed in the filament circuit and that the manufacturer removes the cap to solve the problem. If that's the case, where is the cap located? Has anyone experienced this problem? What was the cure? Thanks in advance for your assistance. Garry ****************************EMAIL DISCLAIMER****************************This e-mail and any files transmitted with it may be confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient or the individual responsible for delivering the e-mail to the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is strictly prohibited. If you have received this e-mail in error, please delete it and notify the sender or contact Health Information Management 312.996.3941. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 18:18:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1781UG-0003YF-00; Wed, 15 May 2002 18:18:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8556C1112F1; Wed, 15 May 2002 19:17:52 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA08902 for linac-eng-list; Wed, 15 May 2002 10:59:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA08896 for ; Wed, 15 May 2002 10:59:16 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g4FFwgc28837; Wed, 15 May 2002 10:58:42 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g4FFwg828833; Wed, 15 May 2002 10:58:42 -0500 (CDT) Received: through eSafe SMTP Relay 1021403377; Wed May 15 10:58:42 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 15 May 2002 10:58:41 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5EC8@wmhmail.phci.org> From: "Williams, Rod" To: "'GARRYANGEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: EXACT (R) Couch Insert Date: Wed, 15 May 2002 10:58:40 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC29.61913710" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'GARRYANGEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: EXACT (R) Couch Insert Date: Wed, 15 May 2002 10:58:40 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FC29.61913710" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1FC29.61913710 Content-Type: text/plain Hi Gary Med TeK has a full solid table top for retro fit to the Exact. I was quoted $9500.00. If you can get the Dept to OK it, this will be the last time you have to deal with the poor designed Varian insert. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: GARRYANGEL@aol.com [SMTP:GARRYANGEL@aol.com] > Sent: Tuesday, May 14, 2002 2:02 PM > To: linac-eng@plato.aristotle.net > Subject: EXACT (R) Couch Insert > > Hi Everyone: > > We are experiencing problems with the EXACT(R) Couch insert breaking. I > have > heard that there is a insert available from an Australian company. Has > anyone > tried this replacement insert? Was it satisfactory? How much did it cost? > And, how can I contact the company? > > Thank for the assistance. > > Garry ------_=_NextPart_001_01C1FC29.61913710 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: EXACT (R) Couch Insert

    Hi Gary

    Med TeK  has a fu= ll solid table top for retro fit to the Exact.  I was quoted $9500.0= 0.  If you can get the Dept to OK it, this will be the last time you= have to deal with the poor designed Varian insert.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   GARRYANGEL@aol.com [SMTP:GARRYANGEL@aol.com]
      Sent:   Tuesday, May 14, 2002 2:02 PM
      To:     linac-eng@plato.aristotle.net
      Subject:    &nbs= p;   EXACT (R) Couch I= nsert

      Hi Everyone:

      We are experiencing problems with the EX= ACT(R) Couch insert breaking. I have
      heard that there is a insert available = from an Australian company. Has anyone
      tried this replacement insert? Was it s= atisfactory? How much did it cost?
      And, how can I contact the company?

      Thank for the assistance.

      Garry

    ------_=_NextPart_001_01C1FC29.61913710-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 19:42:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1782nH-0004Tx-00; Wed, 15 May 2002 19:42:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D6C951112FC; Wed, 15 May 2002 20:41:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA11853 for linac-eng-list; Wed, 15 May 2002 12:01:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rodney.cancercare.mb.ca ([192.139.125.101]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA11777 for ; Wed, 15 May 2002 12:01:10 -0500 (CDT) Received: (from uucp@localhost) by rodney.cancercare.mb.ca (8.10.2+Sun/8.10.2) id g4FH17q12595 for ; Wed, 15 May 2002 12:01:07 -0500 (CDT) Received: from UNKNOWN(172.18.125.22), claiming to be "isis.cancercare.mb.ca" via SMTP by rodney, id smtpdAAA4FaGwy; Wed May 15 16:58:20 2002 Received: from CCMD01-MTA by isis.cancercare.mb.ca with Novell_GroupWise; Wed, 15 May 2002 11:58:19 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Wed, 15 May 2002 11:57:56 -0500 From: "Ken Allen" To: , Subject: Siemens KD2 Bending Magnet cooling leak Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 15 May 2002 11:57:56 -0500 From: "Ken Allen" To: , Subject: Siemens KD2 Bending Magnet cooling leak Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello list, We have a Siemens KD2 (sn 1881) (approx 14 yr vintage) which has sprung a leak in the area of the bending magnet and waveguide. We have strong suspicions that it is one of the cooling loops for one half of the bending magnet. With practically all of the removable shielding removed from around the bending magent, (gantry at 180, head lifted) we are unable to see any water. As soon as we rotate the gantry, water will pour out. We are in the process of isolating each cooling loop to see if we can at least narrow it down to one half or not. Has anyone had any experience with leaks in this area and if so what was the successful fix? The unfortunate side of this is that the machine would probably be decommissioned by this time next year. Appreciate any advice. Ken Allen Electronic Technologist Cancercare Manitoba Winnipeg, MB, Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 19:42:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1782nH-0004Tz-00; Wed, 15 May 2002 19:42:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1EB441112FD; Wed, 15 May 2002 20:41:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA14659 for linac-eng-list; Wed, 15 May 2002 12:25:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from firefox.scf.sk.ca ([204.83.131.253]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA14641 for ; Wed, 15 May 2002 12:25:36 -0500 (CDT) Received: by firefox.scf.sk.ca; (5.65v4.0/1.3/10May95) id AA09558; Wed, 15 May 2002 11:32:03 -0600 Received: from somewhere by smtpxd Received: from somewhere by smtpxd From: scot thiesson To: canadalist@yahoogroups.com Cc: linac-eng@plato.aristotle.net Date: Wed, 15 May 2002 11:26:04 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: <4YRPYV3XMLPKWQZV5ZA8HCB8WURQQNB6.3ce29a2c@RPC099> Subject: Re: [canadalist] Siemens KD2 Bending Magnet cooling leak Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-Mailer: Opera 6.0 build 999 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: canadalist@yahoogroups.com Cc: linac-eng@plato.aristotle.net Date: Wed, 15 May 2002 11:26:04 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: [canadalist] Siemens KD2 Bending Magnet cooling leak Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Ouch. Had a similar situation happen. My advice is to book holidays fast!! Ours resulted in a bending magnet change which is about the worse scenario possible for a Siemens, or any other machine I guess. If it was a lower energy machine you could run with no bending magnet cooling; we have 6400 running like that, but a K class I really doubt it. Someone mentioned a while back that they tried liquid epoxy injection into the lines and they managed a few more months out of the machine. Might be something to look into especially if replacement is on the immediate horizon. Good luck! Scot Thiesson A.B.C.C. Regina 5/15/02 10:57:56 AM, "Ken Allen" wrote: >Hello list, >We have a Siemens KD2 (sn 1881) (approx 14 yr vintage) which has sprung >a leak in the area of the bending magnet and waveguide. We have strong >suspicions that it is one of the cooling loops for one half of the >bending magnet. With practically all of the removable shielding removed >from around the bending magent, (gantry at 180, head lifted) we are >unable to see any water. As soon as we rotate the gantry, water will >pour out. We are in the process of isolating each cooling loop to see >if we can at least narrow it down to one half or not. Has anyone had >any experience with leaks in this area and if so what was the successful >fix? The unfortunate side of this is that the machine would probably be >decommissioned by this time next year. > >Appreciate any advice. > >Ken Allen >Electronic Technologist >Cancercare Manitoba >Winnipeg, MB, Canada > >Questions or comments about Canadalist, simply send email to: >canadalist-owner@yahoogroups.com > >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 21:36:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1784Zc-0005Wl-00; Wed, 15 May 2002 21:36:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C4F571112F1; Wed, 15 May 2002 22:35:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA27640 for linac-eng-list; Wed, 15 May 2002 13:55:16 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbhc.ns.ca (cbhc.ns.ca [142.176.129.243]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA27624 for ; Wed, 15 May 2002 13:55:13 -0500 (CDT) Received: by mail.cbhc.ns.ca from localhost (router,SLMail V3.2); Wed, 15 May 2002 15:55:18 -0300 Received: from jyorke [128.222.7.122] by mail.cbhc.ns.ca [0] (SLmail 3.2.3113) with SMTP id BF79F6B4634111D69CF20002B38BC105 for ; Wed, 15 May 2002 15:55:18 -0300 From: "Greg MacKinnon" To: "LinacEng" Subject: CTRL Interlock Date: Wed, 15 May 2002 15:52:49 -0300 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-SLUIDL: 00ED7669-682011D6-9CF20002-B38BC105 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Greg MacKinnon" To: "LinacEng" Subject: CTRL Interlock Date: Wed, 15 May 2002 15:52:49 -0300 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-SLUIDL: 00ED7669-682011D6-9CF20002-B38BC105 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Group Over the past two weeks I've been getting CTRL Interlocks on a more regular bases. They occur just after the therapist depressing the Beam On command from the dedicated keyboard. The Event Log shows that the Interlock was a result of a "BEAM OFF INTRT MISSING" or "WATCH DOG TIMER". Has anyone have any information that may help isolate this problem? Thanks in advance. Greg __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8000 x2163 fax: (902)567-8075 email: mackinnongreg@cbhc.ns.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 22:25:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1785Kq-00069c-00; Wed, 15 May 2002 22:25:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6535B1112F1; Wed, 15 May 2002 23:24:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA04996 for linac-eng-list; Wed, 15 May 2002 14:55:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA04958 for ; Wed, 15 May 2002 14:55:21 -0500 (CDT) From: clbartee@hsc.vcu.edu Received: from 0 (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id PAA28988; Wed, 15 May 2002 15:55:16 -0400 Message-Id: <200205151955.PAA28988@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: Cc: =?iso-8859-1?q?=22LinacEng=22?= User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: CTRL Interlock MIME-Version: 1.0 To: =?iso-8859-1?q?=22Greg?= =?iso-8859-1?q?_MacKinnon=22?= Date: Wed, 15 May 2002 15:55:16 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: Cc: =?iso-8859-1?q?=22LinacEng=22?= User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: CTRL Interlock To: =?iso-8859-1?q?=22Greg?= =?iso-8859-1?q?_MacKinnon=22?= Date: Wed, 15 May 2002 15:55:16 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk ------------------- Sound like your keyswitch. Chris > Hi Group > > Over the past two weeks I've been getting CTRL Interlocks on a more regular > bases. They occur just after the therapist depressing the Beam On command > from the dedicated keyboard. The Event Log shows that the Interlock was a > result of a "BEAM OFF INTRT MISSING" or "WATCH DOG TIMER". > > Has anyone have any information that may help isolate this problem? > > Thanks in advance. > Greg > > __________________________________________ > Greg MacKinnon > Linear Accelerator Service Technologist > Cape Breton Cancer Centre > 1482 George St > Sydney, NS B1P 1P3 > tel: (902)567-8000 x2163 > fax: (902)567-8075 > email: mackinnongreg@cbhc.ns.ca > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 15 23:08:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17860S-0006gh-00; Wed, 15 May 2002 23:08:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C18181112FC; Thu, 16 May 2002 00:07:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA13039 for linac-eng-list; Wed, 15 May 2002 15:40:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA13035 for ; Wed, 15 May 2002 15:40:38 -0500 (CDT) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id PAA14860; Wed, 15 May 2002 15:36:39 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BBA.00711710 ; Wed, 15 May 2002 15:35:14 -0500 X-Lotus-FromDomain: MDACC To: clbartee@hsc.vcu.edu Cc: "Greg MacKinnon" , "LinacEng" Message-ID: <86256BBA.0071155E.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 15 May 2002 15:39:13 -0500 Subject: Re: CTRL Interlock Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: clbartee@hsc.vcu.edu Cc: "Greg MacKinnon" , "LinacEng" Date: Wed, 15 May 2002 15:39:13 -0500 Subject: Re: CTRL Interlock Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Here at MDACC had a few and seem to solve the problem by replacing the Comm Processor PCB. ( the bottom board). My college here was the one who came up with the solution, So I will ask him if he would be willing to post his results. clbartee@hsc.vcu.edu on 05/17/2002 11:55:16 AM To: "Greg MacKinnon" cc: "LinacEng" (bcc: Vincente Ortiz/MDACC) Subject: Re: CTRL Interlock ------------------- Sound like your keyswitch. Chris > Hi Group > > Over the past two weeks I've been getting CTRL Interlocks on a more regular > bases. They occur just after the therapist depressing the Beam On command > from the dedicated keyboard. The Event Log shows that the Interlock was a > result of a "BEAM OFF INTRT MISSING" or "WATCH DOG TIMER". > > Has anyone have any information that may help isolate this problem? > > Thanks in advance. > Greg > > __________________________________________ > Greg MacKinnon > Linear Accelerator Service Technologist > Cape Breton Cancer Centre > 1482 George St > Sydney, NS B1P 1P3 > tel: (902)567-8000 x2163 > fax: (902)567-8075 > email: mackinnongreg@cbhc.ns.ca > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 15:07:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178Kyg-0003Sf-00; Thu, 16 May 2002 15:07:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD29F11130A; Thu, 16 May 2002 16:06:27 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA18325 for linac-eng-list; Thu, 16 May 2002 07:39:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (hscemail5.hscs.Virginia.EDU [128.143.176.152]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA18321 for ; Thu, 16 May 2002 07:39:52 -0500 (CDT) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Thu, 16 May 2002 08:39:51 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: RE: CTRL Interlock Disposition-Notification-To: "Orsolini, Joe D" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 16 May 2002 08:39:50 -0400 Message-ID: Thread-Topic: CTRL Interlock Thread-Index: AcH8Ts1ItaruOCqsQAG0WQLL56OUTwAh8U9g From: "Orsolini, Joe D" To: "Linac-Eng (E-mail 2)" X-OriginalArrivalTime: 16 May 2002 12:39:51.0213 (UTC) FILETIME=[C5A3C5D0:01C1FCD6] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA18322 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Subject: RE: CTRL Interlock Disposition-Notification-To: "Orsolini, Joe D" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 16 May 2002 08:39:50 -0400 Thread-Topic: CTRL Interlock Thread-Index: AcH8Ts1ItaruOCqsQAG0WQLL56OUTwAh8U9g From: "Orsolini, Joe D" To: "Linac-Eng (E-mail 2)" X-OriginalArrivalTime: 16 May 2002 12:39:51.0213 (UTC) FILETIME=[C5A3C5D0:01C1FCD6] X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA18322 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have that problem when the therapist turns the key quickly and depresses the beam on button almost simultaneously with the key turn, when we had them slow down, the problem disappeared. -----Original Message----- From: Greg MacKinnon [mailto:mackinnongreg@cbhc.ns.ca] Sent: Wednesday, May 15, 2002 2:53 PM To: LinacEng Subject: CTRL Interlock Hi Group Over the past two weeks I've been getting CTRL Interlocks on a more regular bases. They occur just after the therapist depressing the Beam On command from the dedicated keyboard. The Event Log shows that the Interlock was a result of a "BEAM OFF INTRT MISSING" or "WATCH DOG TIMER". Has anyone have any information that may help isolate this problem? Thanks in advance. Greg __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8000 x2163 fax: (902)567-8075 email: mackinnongreg@cbhc.ns.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 16:50:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178Ma6-00051x-00; Thu, 16 May 2002 16:50:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 95A8D1112F1; Thu, 16 May 2002 17:49:10 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA20644 for linac-eng-list; Thu, 16 May 2002 09:23:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from SVG2KSMTP.svg.hshs.org ([204.44.160.216]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA20637 for ; Thu, 16 May 2002 09:23:30 -0500 (CDT) Received: from SVG2KEXCH2 ([10.31.16.79]) by SVG2KSMTP.svg.hshs.org with Microsoft SMTPSVC(5.0.2195.4453); Thu, 16 May 2002 09:22:58 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Subject: RE: EXACT (R) Couch Insert Date: Thu, 16 May 2002 09:22:57 -0500 Message-ID: <2F2AF505F9EA4F4F860E0BDA3D2FCF2308C11B@SVG2KEXCH2.svg.hshs.org> Thread-Topic: EXACT (R) Couch Insert Thread-Index: AcH7g5z7RqzkoLWqSiqJqW0E1nTVaQBXnaw6 From: "Jerry Glaeser" To: Cc: X-OriginalArrivalTime: 16 May 2002 14:22:58.0474 (UTC) FILETIME=[2D88E0A0:01C1FCE5] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by plato.aristotle.net id JAA20641 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="utf-8" Subject: RE: EXACT (R) Couch Insert Date: Thu, 16 May 2002 09:22:57 -0500 Thread-Topic: EXACT (R) Couch Insert Thread-Index: AcH7g5z7RqzkoLWqSiqJqW0E1nTVaQBXnaw6 From: "Jerry Glaeser" To: Cc: X-OriginalArrivalTime: 16 May 2002 14:22:58.0474 (UTC) FILETIME=[2D88E0A0:01C1FCE5] X-MIME-Autoconverted: from base64 to 8bit by plato.aristotle.net id JAA20641 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Garry, We have had three Uni-panel failures on our two 21EX machines within the first 1.5 years of service. I had spoken to Tony, sorry I don't have his last name, at Varian in their Regulatory office, phone #650-424-6662. Tony had indicated that the proper protocol to log a complaint is to call Varian Customer Relations office at 1-800-890-5197, and they would mail or FAX an official form to complete and return to them. Once the form is returned, Varian would assign it a case number that they would use to monitor and respond to the problem. Hopefully this will help you get started with the process. Let me know if I can be of further assistance. Jerry -----Original Message----- From: GARRYANGEL@aol.com [mailto:GARRYANGEL@aol.com] Sent: Tue 5/14/2002 2:02 PM To: linac-eng@plato.aristotle.net Cc: Subject: EXACT (R) Couch Insert Hi Everyone: We are experiencing problems with the EXACT(R) Couch insert breaking. I have heard that there is a insert available from an Australian company. Has anyone tried this replacement insert? Was it satisfactory? How much did it cost? And, how can I contact the company? Thank for the assistance. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 16:51:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178MbG-00053F-00; Thu, 16 May 2002 16:51:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C2F8D1112F1; Thu, 16 May 2002 17:50:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA20889 for linac-eng-list; Thu, 16 May 2002 09:33:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d05.mx.aol.com (imo-d05.mx.aol.com [205.188.157.37]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA20885 for ; Thu, 16 May 2002 09:33:00 -0500 (CDT) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-d05.mx.aol.com (mail_out_v32.5.) id y.1a4.25739fd (30954); Thu, 16 May 2002 10:32:20 -0400 (EDT) Message-ID: <1a4.25739fd.2a151cf4@aol.com> Date: Thu, 16 May 2002 10:32:20 EDT Subject: Re: POSITIONS AVAILABLE To: GARRYANGEL@aol.com, linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_1a4.25739fd.2a151cf4_boundary" X-Mailer: AOL 6.0 for Windows US sub 10568 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Thu, 16 May 2002 10:32:20 EDT Subject: Re: POSITIONS AVAILABLE To: GARRYANGEL@aol.com, linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_1a4.25739fd.2a151cf4_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_1a4.25739fd.2a151cf4_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Who might "we" be? DRS --part1_1a4.25739fd.2a151cf4_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Who might "we" be?
    DRS     --part1_1a4.25739fd.2a151cf4_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 19:38:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178PDD-0007Fm-00; Thu, 16 May 2002 19:38:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 314631112F1; Thu, 16 May 2002 20:37:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA27433 for linac-eng-list; Thu, 16 May 2002 12:03:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f24.law8.hotmail.com [216.33.241.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA27429 for ; Thu, 16 May 2002 12:03:04 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 16 May 2002 10:01:34 -0700 Received: from 207.67.109.70 by lw8fd.law8.hotmail.msn.com with HTTP; Thu, 16 May 2002 17:01:34 GMT X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: jglaeser@stvgb.org, GARRYANGEL@aol.com Cc: linac-eng@plato.aristotle.net Subject: RE: EXACT (R) Couch Insert Date: Thu, 16 May 2002 12:01:34 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 16 May 2002 17:01:34.0694 (UTC) FILETIME=[55A4D060:01C1FCFB] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: jglaeser@stvgb.org, GARRYANGEL@aol.com Cc: linac-eng@plato.aristotle.net Subject: RE: EXACT (R) Couch Insert Date: Thu, 16 May 2002 12:01:34 -0500 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 16 May 2002 17:01:34.0694 (UTC) FILETIME=[55A4D060:01C1FCFB] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk MUWHAHAHAHAHAHHOOHO. THATS A GOOD ONE JERRY. >From: "Jerry Glaeser" >To: >CC: >Subject: RE: EXACT (R) Couch Insert >Date: Thu, 16 May 2002 09:22:57 -0500 > >Garry, >We have had three Uni-panel failures on our two 21EX machines within the >first 1.5 years of service. I had spoken to Tony, sorry I don't have his >last name, at Varian in their Regulatory office, phone #650-424-6662. Tony >had indicated that the proper protocol to log a complaint is to call Varian >Customer Relations office at 1-800-890-5197, and they would mail or FAX an >official form to complete and return to them. Once the form is returned, >Varian would assign it a case number that they would use to monitor and >respond to the problem. >Hopefully this will help you get started with the process. Let me know if >I can be of further assistance. >Jerry > > -----Original Message----- > From: GARRYANGEL@aol.com [mailto:GARRYANGEL@aol.com] > Sent: Tue 5/14/2002 2:02 PM > To: linac-eng@plato.aristotle.net > Cc: > Subject: EXACT (R) Couch Insert > > > > Hi Everyone: > > We are experiencing problems with the EXACT(R) Couch insert breaking. I >have > heard that there is a insert available from an Australian company. Has >anyone > tried this replacement insert? Was it satisfactory? How much did it cost? > And, how can I contact the company? > > Thank for the assistance. > > Garry > > _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 20:17:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178Pot-0007ZG-00; Thu, 16 May 2002 20:17:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5756B1112F1; Thu, 16 May 2002 21:16:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA10231 for linac-eng-list; Thu, 16 May 2002 12:49:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA10227 for ; Thu, 16 May 2002 12:49:08 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id <2ZWTKRJS>; Thu, 16 May 2002 10:48:37 -0700 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL2100 Gas Leak Spec Date: Thu, 16 May 2002 10:46:50 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL2100 Gas Leak Spec Date: Thu, 16 May 2002 10:46:50 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Does anyone know what the official SF6 leak specification is on the CL2100 Varian machines. I realize that no leak is what we would all like to see but I would like to know what the official numer is. Thanks Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 20:45:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178QFY-0007s0-00; Thu, 16 May 2002 20:45:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 819F81112F1; Thu, 16 May 2002 21:44:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24185 for linac-eng-list; Thu, 16 May 2002 13:24:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24181 for ; Thu, 16 May 2002 13:24:48 -0500 (CDT) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA22541; Thu, 16 May 2002 13:21:04 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BBB.0064AE53 ; Thu, 16 May 2002 13:19:40 -0500 X-Lotus-FromDomain: MDACC To: "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Message-ID: <86256BBB.0064AD34.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 16 May 2002 13:23:43 -0500 Subject: Re: Varian CL2100 Gas Leak Spec Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Wilson, Jim" Cc: "'Linac Bulletin Board Posting'" Date: Thu, 16 May 2002 13:23:43 -0500 Subject: Re: Varian CL2100 Gas Leak Spec Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk The last time I looked it was 2# over a 48 hour period. But I have always started looking for leaks when I saw a leak rate of over 1# over that same period. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 20:57:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178QRl-0007yJ-00; Thu, 16 May 2002 20:57:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 79F5A1112F1; Thu, 16 May 2002 21:56:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24556 for linac-eng-list; Thu, 16 May 2002 13:39:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta7.pltn13.pbi.net (mta7.pltn13.pbi.net [64.164.98.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24550 for ; Thu, 16 May 2002 13:39:26 -0500 (CDT) Received: from REI-DGPC1.pacbell.net ([216.103.85.50]) by mta7.pltn13.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0GW7007OVVTNW9@mta7.pltn13.pbi.net> for linac-eng@plato.aristotle.net; Thu, 16 May 2002 11:39:25 -0700 (PDT) Date: Thu, 16 May 2002 11:39:26 -0700 From: Domenic Greco Subject: Re: Varian CL2100 Gas Leak Spec In-reply-to: X-Sender: dgreco@postoffice.pacbell.net To: "Wilson, Jim" , "'Linac Bulletin Board Posting'" Message-id: <5.1.0.14.0.20020516112552.00e2c924@postoffice.pacbell.net> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 16 May 2002 11:39:26 -0700 From: Domenic Greco Subject: Re: Varian CL2100 Gas Leak Spec In-reply-to: X-Sender: dgreco@postoffice.pacbell.net To: "Wilson, Jim" , "'Linac Bulletin Board Posting'" Content-type: text/plain; charset=us-ascii; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Jim, The spec from my factory days, and I believe is still true today, is <2psi in a 24 hour period. With a little perseverance, it's not hard to do better than that. Regards, Domenic Greco Radiation Electronics, Inc. 888-850-9729 At 10:46 AM 5/16/2002 -0700, Wilson, Jim wrote: >Does anyone know what the official SF6 leak specification is on the CL2100 >Varian machines. I realize that no leak is what we would all like to see but >I would like to know what the official numer is. Thanks > >Jim Wilson >Clinical Engineering >Providence St.Vincent Hospital > > >**************************************************************************** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 21:45:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178RBl-0008Tq-00; Thu, 16 May 2002 21:45:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5E43C1112F1; Thu, 16 May 2002 22:44:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA26526 for linac-eng-list; Thu, 16 May 2002 14:23:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m09.mx.aol.com (imo-m09.mx.aol.com [64.12.136.164]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA26522 for ; Thu, 16 May 2002 14:23:17 -0500 (CDT) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-m09.mx.aol.com (mail_out_v32.5.) id y.c8.26f477f6 (3968) for ; Thu, 16 May 2002 15:22:37 -0400 (EDT) Message-ID: Date: Thu, 16 May 2002 15:22:36 EDT Subject: Vault doors To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_c8.26f477f6.2a1560fc_boundary" X-Mailer: AOL 6.0 for Windows US sub 10568 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Thu, 16 May 2002 15:22:36 EDT Subject: Vault doors To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_c8.26f477f6.2a1560fc_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_c8.26f477f6.2a1560fc_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Just a quick question to any and all: What company do you use for your vault doors? Specifically repair, but installation also. Thanks, Dave --part1_c8.26f477f6.2a1560fc_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Just a quick question to any and all:
    What company do you use for your vault doors?  Specifically repair, but installation also.
    Thanks,
    Dave     --part1_c8.26f477f6.2a1560fc_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 16 22:56:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178SIj-0000jV-00; Thu, 16 May 2002 22:56:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 54BEC1112F1; Thu, 16 May 2002 23:55:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA03672 for linac-eng-list; Thu, 16 May 2002 15:34:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ftwvir01.ftw.medcity.net (mail.ftw.medcity.net [199.91.36.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA03612 for ; Thu, 16 May 2002 15:34:07 -0500 (CDT) Received: from 170.150.192.135 by ftwvir01.ftw.medcity.net (InterScan E-Mail VirusWall NT); Thu, 16 May 2002 15:36:01 -0500 Received: by ftwexcon02.ftw.medcity.net with Internet Mail Service (5.5.2653.19) id ; Thu, 16 May 2002 15:22:23 -0500 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F86645@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'MIROSTEIMEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Vault doors Date: Thu, 16 May 2002 15:33:06 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/mixed; boundary="------------InterScan_NT_MIME_Boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'MIROSTEIMEL@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Vault doors Date: Thu, 16 May 2002 15:33:06 -0500 Content-Type: multipart/mixed; boundary="------------InterScan_NT_MIME_Boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --------------InterScan_NT_MIME_Boundary Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FD18.E2727980" ------_=_NextPart_001_01C1FD18.E2727980 Content-Type: text/plain; charset="iso-8859-1" We had a company called Nelco,1-800-635-2613, install the additional shielding and vault room door when we installed our 21EX in Jan 2000. They have several offices around the country. Boston, Houston,St Louis,LA & San Fran. They did an excellent job. I would recommend them. MT -----Original Message----- From: MIROSTEIMEL@aol.com [mailto:MIROSTEIMEL@aol.com] Sent: Thursday, May 16, 2002 2:23 PM To: linac-eng@plato.aristotle.net Subject: Vault doors Just a quick question to any and all: What company do you use for your vault doors? Specifically repair, but installation also. Thanks, Dave ------_=_NextPart_001_01C1FD18.E2727980 Content-Type: text/html; charset="iso-8859-1"
    We had a company called Nelco,1-800-635-2613, install the additional shielding and vault room door when we installed our 21EX in Jan 2000. They have several offices around the country. Boston, Houston,St Louis,LA & San Fran. They did an excellent job. I would recommend them.
     
    MT
    -----Original Message-----
    From: MIROSTEIMEL@aol.com [mailto:MIROSTEIMEL@aol.com]
    Sent: Thursday, May 16, 2002 2:23 PM
    To: linac-eng@plato.aristotle.net
    Subject: Vault doors

    Just a quick question to any and all:
    What company do you use for your vault doors?  Specifically repair, but installation also.
    Thanks,
    Dave
    ------_=_NextPart_001_01C1FD18.E2727980-- --------------InterScan_NT_MIME_Boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 17 03:55:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178WyJ-0003gW-00; Fri, 17 May 2002 03:55:55 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BEFED1112F1; Fri, 17 May 2002 04:54:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA03971 for linac-eng-list; Thu, 16 May 2002 20:34:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA03967 for ; Thu, 16 May 2002 20:33:58 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id NAA22705 for ; Fri, 17 May 2002 13:17:09 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 17 May 2002 13:37:03 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 17 May 2002 13:33:16 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 17 May 2002 13:33:02 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian CL2100 Gas Leak Spec Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id UAA03968 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 17 May 2002 13:33:02 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian CL2100 Gas Leak Spec Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id UAA03968 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, >From memory (C1). It was something like 2PSI / 48hrs. Perhaps it's less for a KLM. :D >>> "Wilson, Jim" 17/05/02 05:46:50 >>> Does anyone know what the official SF6 leak specification is on the CL2100 Varian machines. I realize that no leak is what we would all like to see but I would like to know what the official numer is. Thanks Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 17 13:29:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178fv6-0003gD-00; Fri, 17 May 2002 13:29:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E059B1112F1; Fri, 17 May 2002 14:28:02 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA14216 for linac-eng-list; Fri, 17 May 2002 06:07:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA14212 for ; Fri, 17 May 2002 06:07:26 -0500 (CDT) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id GAA14299; Fri, 17 May 2002 06:03:42 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BBC.003CA431 ; Fri, 17 May 2002 06:02:21 -0500 X-Lotus-FromDomain: MDACC To: MIROSTEIMEL@aol.com Cc: linac-eng@plato.aristotle.net Message-ID: <86256BBC.003CA345.00@utm-notesob1.mdacc.tmc.edu> Date: Fri, 17 May 2002 06:06:23 -0500 Subject: Re: Vault doors Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: MIROSTEIMEL@aol.com Cc: linac-eng@plato.aristotle.net Date: Fri, 17 May 2002 06:06:23 -0500 Subject: Re: Vault doors Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk In my opinion and only my opinion. " Disclaimer, these opinions do or do not necessarily reflect the opinion of my employer" I would go with NELCO all the way, I have never to date, approximately 15 years, have never had a problem that hasn't been resolve to my satisfaction. Hope this helps. Let me know if you need their number. Vince 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 17 15:32:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178hqM-00060y-00; Fri, 17 May 2002 15:32:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D904D11130B; Fri, 17 May 2002 16:30:49 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA16189 for linac-eng-list; Fri, 17 May 2002 08:10:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dcntmta02.spectrum-health.org ([167.73.110.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA16185 for ; Fri, 17 May 2002 08:10:04 -0500 (CDT) From: neville.wiles@spectrum-health.org Received: by dcntmta02.spectrum-health.org with Internet Mail Service (5.5.2653.19) id ; Fri, 17 May 2002 09:09:34 -0400 Message-ID: <9BA17E080E6CD51195EE0020484023FF9C780D@dcntmsg03.spectrum-health.org> To: Ken.Allen@cancercare.mb.ca, linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: RE: Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 09:10:02 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FDA4.277EF4A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org To: Ken.Allen@cancercare.mb.ca, linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: RE: Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 09:10:02 -0400 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C1FDA4.277EF4A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C1FDA4.277EF4A0 Content-Type: text/plain; charset="iso-8859-1" The old Magnets (like your vintage) would be wrapped with cloth tape. If it is in fact leaking, and you don't want to run with out cooling. (that's up to you) It would have to be replaced, the new ones are epoxied. You'll have to pull the waveguide to get at it. And do raw beam, flat/sym, stability and such. It's a tough decision and would take a week or so depending on who does it. Sorry, Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org -----Original Message----- From: Ken Allen [mailto:Ken.Allen@cancercare.mb.ca] Sent: Wednesday, May 15, 2002 12:58 PM To: linac-eng@plato.aristotle.net; canadalist@yahoogroups.com Subject: Siemens KD2 Bending Magnet cooling leak Hello list, We have a Siemens KD2 (sn 1881) (approx 14 yr vintage) which has sprung a leak in the area of the bending magnet and waveguide. We have strong suspicions that it is one of the cooling loops for one half of the bending magnet. With practically all of the removable shielding removed from around the bending magent, (gantry at 180, head lifted) we are unable to see any water. As soon as we rotate the gantry, water will pour out. We are in the process of isolating each cooling loop to see if we can at least narrow it down to one half or not. Has anyone had any experience with leaks in this area and if so what was the successful fix? The unfortunate side of this is that the machine would probably be decommissioned by this time next year. Appreciate any advice. Ken Allen Electronic Technologist Cancercare Manitoba Winnipeg, MB, Canada ------_=_NextPart_001_01C1FDA4.277EF4A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Siemens KD2 Bending Magnet cooling leak

    The old Magnets (like your vintage) would be wrapped = with cloth tape.  If it is in fact leaking, and you don't want to = run with out cooling. (that's up to you)  It would have to be = replaced, the new ones are epoxied. You'll have to pull the waveguide = to get at it.  And do raw beam, flat/sym, stability and = such.  It's a tough decision and would take a week or so depending = on who does it.

    Sorry,

    Neville Wiles
    Spectrum Health
    Grand Rapids, MI
    616) 391-3639
    Neville.Wiles@Spectrum-Health.org 

    -----Original Message-----
    From: Ken Allen [mailto:Ken.Allen@cancercare.m= b.ca]
    Sent: Wednesday, May 15, 2002 12:58 PM
    To: linac-eng@plato.aristotle.net; = canadalist@yahoogroups.com
    Subject: Siemens KD2 Bending Magnet cooling = leak


    Hello list,
    We have a Siemens KD2 (sn 1881) (approx 14 yr = vintage) which has sprung
    a leak in the area of the bending magnet and = waveguide.  We have strong
    suspicions that it is one of the cooling loops for = one half of the
    bending magnet.  With practically all of the = removable shielding removed
    from around the bending magent, (gantry at 180, head = lifted) we are
    unable to see any water.  As soon as we rotate = the gantry, water will
    pour out.  We are in the process of isolating = each cooling loop to see
    if we can at least narrow it down to one half or = not.  Has anyone had
    any experience with leaks in this area and if so = what was the successful
    fix?  The unfortunate side of this is that the = machine would probably be
    decommissioned by this time next year.

    Appreciate any advice.

    Ken Allen
    Electronic Technologist
    Cancercare Manitoba
    Winnipeg, MB, Canada

    ------_=_NextPart_001_01C1FDA4.277EF4A0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 17 16:04:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178iLT-0006Yy-00; Fri, 17 May 2002 16:04:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3A8B71112F1; Fri, 17 May 2002 17:03:24 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA17293 for linac-eng-list; Fri, 17 May 2002 08:45:36 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from webshield.tmh.tmc.edu (webshield.tmh.tmc.edu [128.249.171.72]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA17289 for ; Fri, 17 May 2002 08:45:35 -0500 (CDT) Received: FROM exch2.tmh.tmc.edu BY webshield.tmh.tmc.edu ; Fri May 17 08:45:54 2002 -0500 Received: by EXCH2 with Internet Mail Service (5.5.2653.19) id ; Fri, 17 May 2002 08:45:32 -0500 Message-ID: <19F7B261417BD211BB660060973789D20DE600ED@EXCH2> From: "Segovia, Luis E." To: Ken Allen , linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: RE: Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 08:45:31 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Segovia, Luis E." To: Ken Allen , linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: RE: Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 08:45:31 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Ken, It sounds that your bending magnet is leaking. One way to be 100% sure is to run freon or SF6 through the water lines and use a leak detector. I am very confident that you will find the leak. I ran a Mevatron 77 without cooling water in the magnet for 2 years. X-hi is 15MV and we did not use the higher electron energies. The maximun BMI that we ran was 28Amps. Please contact me if you have any questions Luis Segovia 713-523-4013 > -----Original Message----- > From: Ken Allen [SMTP:Ken.Allen@cancercare.mb.ca] > Sent: Wednesday, May 15, 2002 11:58 AM > To: linac-eng@plato.aristotle.net; canadalist@yahoogroups.com > Subject: Siemens KD2 Bending Magnet cooling leak > > Hello list, > We have a Siemens KD2 (sn 1881) (approx 14 yr vintage) which has sprung > a leak in the area of the bending magnet and waveguide. We have strong > suspicions that it is one of the cooling loops for one half of the > bending magnet. With practically all of the removable shielding removed > from around the bending magent, (gantry at 180, head lifted) we are > unable to see any water. As soon as we rotate the gantry, water will > pour out. We are in the process of isolating each cooling loop to see > if we can at least narrow it down to one half or not. Has anyone had > any experience with leaks in this area and if so what was the successful > fix? The unfortunate side of this is that the machine would probably be > decommissioned by this time next year. > > Appreciate any advice. > > Ken Allen > Electronic Technologist > Cancercare Manitoba > Winnipeg, MB, Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 17 19:19:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178lNs-0000eO-00; Fri, 17 May 2002 19:19:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CDF5D1112F1; Fri, 17 May 2002 20:18:04 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA04639 for linac-eng-list; Fri, 17 May 2002 11:45:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA04635 for ; Fri, 17 May 2002 11:44:56 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g4HGiNm12776 for ; Fri, 17 May 2002 12:44:23 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BBC.005B8FBC ; Fri, 17 May 2002 12:40:05 -0400 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256BBC.005B8F83.00@mail.lrcc.on.ca> Date: Fri, 17 May 2002 12:40:04 -0400 Subject: Portal Vision R-Arm Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Fri, 17 May 2002 12:40:04 -0400 Subject: Portal Vision R-Arm Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello List: I have been having intermittent problems with one of my Portal Vision R-Arm systems and was wondering if anyone on the list has had similar problems. Problem: Portal Vision sn 816 TRIP light comes on, and H/C shows NL so you cannot clear the interlocks and then clear the TRIP as you would normally do. It has happened twice now and both times it just kind of went away and started working again. Randy 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 17 20:38:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178mcv-0001YG-00; Fri, 17 May 2002 20:38:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5AB0C1112F3; Fri, 17 May 2002 21:37:40 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA14751 for linac-eng-list; Fri, 17 May 2002 12:59:12 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA14709 for ; Fri, 17 May 2002 12:59:06 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Fri, 17 May 2002 13:58:35 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAC4@phsexch6.partners.org> From: "Maddox, Buford J" To: "'scot thiesson'" , canadalist@yahoogroups.com Cc: linac-eng@plato.aristotle.net Subject: RE: [canadalist] Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 13:58:34 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'scot thiesson'" , canadalist@yahoogroups.com Cc: linac-eng@plato.aristotle.net Subject: RE: [canadalist] Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 13:58:34 -0400 Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Time for a war story. Many years ago we had a Mev 12 scheduled for replacement in a few months, which developed a Bmag leak. We made a separate low pressure (1psi) loop for it. Also put in radiator leak sealer. It had an overtemp ilk, I think. This lasted several months. Jerry -----Original Message----- From: scot thiesson [mailto:sthiesson@scf.sk.ca] Sent: Wednesday, May 15, 2002 1:26 PM To: canadalist@yahoogroups.com Cc: linac-eng@plato.aristotle.net Subject: Re: [canadalist] Siemens KD2 Bending Magnet cooling leak Ouch. Had a similar situation happen. My advice is to book holidays fast!! Ours resulted in a bending magnet change which is about the worse scenario possible for a Siemens, or any other machine I guess. If it was a lower energy machine you could run with no bending magnet cooling; we have 6400 running like that, but a K class I really doubt it. Someone mentioned a while back that they tried liquid epoxy injection into the lines and they managed a few more months out of the machine. Might be something to look into especially if replacement is on the immediate horizon. Good luck! Scot Thiesson A.B.C.C. Regina 5/15/02 10:57:56 AM, "Ken Allen" wrote: >Hello list, >We have a Siemens KD2 (sn 1881) (approx 14 yr vintage) which has sprung >a leak in the area of the bending magnet and waveguide. We have strong >suspicions that it is one of the cooling loops for one half of the >bending magnet. With practically all of the removable shielding removed >from around the bending magent, (gantry at 180, head lifted) we are >unable to see any water. As soon as we rotate the gantry, water will >pour out. We are in the process of isolating each cooling loop to see >if we can at least narrow it down to one half or not. Has anyone had >any experience with leaks in this area and if so what was the successful >fix? The unfortunate side of this is that the machine would probably be >decommissioned by this time next year. > >Appreciate any advice. > >Ken Allen >Electronic Technologist >Cancercare Manitoba >Winnipeg, MB, Canada > >Questions or comments about Canadalist, simply send email to: >canadalist-owner@yahoogroups.com > >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 17 20:38:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178mcv-0001YH-00; Fri, 17 May 2002 20:38:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3EA401112F1; Fri, 17 May 2002 21:37:40 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA16342 for linac-eng-list; Fri, 17 May 2002 13:03:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA16316 for ; Fri, 17 May 2002 13:03:44 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id <2ZZZPK8N>; Fri, 17 May 2002 14:03:14 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAC5@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Ken Allen'" , linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: RE: Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 14:03:13 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Ken Allen'" , linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: RE: Siemens KD2 Bending Magnet cooling leak Date: Fri, 17 May 2002 14:03:13 -0400 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We just had to replace a waveguide due to a window leak. It could not be seen. But I placed some lead over the window to protect it, and when the lead was removed, there was the water! Probably a lot less water than yours, so I would suspect a target leak. Have you pulled the target out of the machine? I have seen many target leaks over the years, most are hard to find unless you yank the target. Siemens machines, of course. Good luck. Jerry -----Original Message----- From: Ken Allen [mailto:Ken.Allen@cancercare.mb.ca] Sent: Wednesday, May 15, 2002 12:58 PM To: linac-eng@plato.aristotle.net; canadalist@yahoogroups.com Subject: Siemens KD2 Bending Magnet cooling leak Hello list, We have a Siemens KD2 (sn 1881) (approx 14 yr vintage) which has sprung a leak in the area of the bending magnet and waveguide. We have strong suspicions that it is one of the cooling loops for one half of the bending magnet. With practically all of the removable shielding removed from around the bending magent, (gantry at 180, head lifted) we are unable to see any water. As soon as we rotate the gantry, water will pour out. We are in the process of isolating each cooling loop to see if we can at least narrow it down to one half or not. Has anyone had any experience with leaks in this area and if so what was the successful fix? The unfortunate side of this is that the machine would probably be decommissioned by this time next year. Appreciate any advice. Ken Allen Electronic Technologist Cancercare Manitoba Winnipeg, MB, Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat May 18 10:08:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 178zGB-0001GI-00; Sat, 18 May 2002 10:08:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A9F4B1112F3; Sat, 18 May 2002 11:06:58 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA25688 for linac-eng-list; Sat, 18 May 2002 02:49:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web21509.mail.yahoo.com (web21509.mail.yahoo.com [66.163.169.58]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id CAA25684 for ; Sat, 18 May 2002 02:49:47 -0500 (CDT) Message-ID: <20020518074947.27859.qmail@web21509.mail.yahoo.com> Received: from [195.92.194.19] by web21509.mail.yahoo.com via HTTP; Sat, 18 May 2002 08:49:47 BST Date: Sat, 18 May 2002 08:49:47 +0100 (BST) From: =?iso-8859-1?q?Sid=20Carfoot?= Subject: Survey To: List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-112162189-1021708187=:24598" Content-Transfer-Encoding: 8bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sat, 18 May 2002 08:49:47 +0100 (BST) From: =?iso-8859-1?q?Sid=20Carfoot?= Subject: Survey To: List Content-Type: multipart/alternative; boundary="0-112162189-1021708187=:24598" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --0-112162189-1021708187=:24598 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi List We have had many comments on the list about work load, number of engineers, grades etc.. I am doing a survey of UK tech's to find out the position in the UK and have prepared a questionaire which will provide data on most of these questions. This can be sent either by E-mail or Post. If you are interested in taking part then please E-mail me with your address. Confidentiality and impartially assured. Results will be sent to all who participate with a general overview also sent to the list. Your assistance would be appreciated. Linac Tech --------------------------------- Do You Yahoo!? Get personalised at My Yahoo!. --0-112162189-1021708187=:24598 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit

    Hi List

    We have had many comments on the list about work load, number of engineers, grades etc..

    I am doing a survey of UK tech's  to find out the position in the UK  and have prepared a questionaire which will provide data on most of these questions.

    This can be sent either by E-mail or Post. If you are interested in taking part then please E-mail me with your address. Confidentiality and impartially assured.

    Results will be sent to all who participate with a general overview also sent to the list.

    Your assistance would be appreciated.

    Linac Tech

     


    Do You Yahoo!?
    Get personalised at My Yahoo!. --0-112162189-1021708187=:24598-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon May 20 16:21:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 179o2M-0001DX-00; Mon, 20 May 2002 16:21:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0AA8D1112FB; Mon, 20 May 2002 17:19:47 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA00635 for linac-eng-list; Mon, 20 May 2002 08:58:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web21507.mail.yahoo.com (web21507.mail.yahoo.com [66.163.169.18]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA00629 for ; Mon, 20 May 2002 08:58:32 -0500 (CDT) Message-ID: <20020520135831.66674.qmail@web21507.mail.yahoo.com> Received: from [213.121.212.121] by web21507.mail.yahoo.com via HTTP; Mon, 20 May 2002 14:58:31 BST Date: Mon, 20 May 2002 14:58:31 +0100 (BST) From: =?iso-8859-1?q?Sid=20Carfoot?= To: List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-904689407-1021903111=:62780" Content-Transfer-Encoding: 8bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 20 May 2002 14:58:31 +0100 (BST) From: =?iso-8859-1?q?Sid=20Carfoot?= To: List Content-Type: multipart/alternative; boundary="0-904689407-1021903111=:62780" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --0-904689407-1021903111=:62780 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi list Thankyou for the response to my previous message.(see below) I am still receiving replies so will send out the survey later in the week. Regards Sid Hi List We have had many comments on the list about work load, number of engineers, grades etc.. I am doing a survey of UK tech's to find out the position in the UK and have prepared a questionaire which will provide data on most of these questions. This can be sent either by E-mail or Post. If you are interested in taking part then please E-mail me with your address. Confidentiality and impartially assured. Results will be sent to all who participate with a general overview also sent to the list. Your assistance would be appreciated. Linac Tech --------------------------------- Do You Yahoo!? Get personalised at My Yahoo!. --0-904689407-1021903111=:62780 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit

    Hi list

    Thankyou for the response to my previous message.(see below)

    I am still receiving replies so will send out the survey later in the week.

    Regards

    Sid

    Hi List

    We have had many comments on the list about work load, number of engineers, grades etc..

    I am doing a survey of UK tech's  to find out the position in the UK  and have prepared a questionaire which will provide data on most of these questions.

    This can be sent either by E-mail or Post. If you are interested in taking part then please E-mail me with your address. Confidentiality and impartially assured.

    Results will be sent to all who participate with a general overview also sent to the list.

    Your assistance would be appreciated.

    Linac Tech


    Do You Yahoo!?
    Get personalised at My Yahoo!. --0-904689407-1021903111=:62780-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon May 20 17:43:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 179pJg-00029c-00; Mon, 20 May 2002 17:43:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 944211112FB; Mon, 20 May 2002 18:41:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA02548 for linac-eng-list; Mon, 20 May 2002 10:19:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from CCMAIL.GENERALHEALTH.ORG ([64.56.16.29]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA02544 for ; Mon, 20 May 2002 10:19:28 -0500 (CDT) Received: from ccMail by CCMAIL.GENERALHEALTH.ORG (IMA Internet Exchange 3.13) id 000C3ED7; Mon, 20 May 2002 10:17:00 -0500 Mime-Version: 1.0 Date: Mon, 20 May 2002 10:04:23 -0500 Message-ID: <000C3ED7.C22279@GENERALHEALTH.ORG> From: Joe_Finnegan@generalhealth.org (Joe Finnegan) Subject: In-House Linac Engineers To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 20 May 2002 10:04:23 -0500 From: Joe_Finnegan@generalhealth.org (Joe Finnegan) Subject: In-House Linac Engineers To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Content-Description: cc:Mail note part Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I would like to ask for some help from the list. I have a couple of questions concerning in-house Linac engineers. 1. For those facilities with in-house engineers, are they salaried or hourly employees? 2. For those who are salaried, was there any certain prerequisite that had to be met to become salaried? Please E-mail me directly. My E-mail address is joe_finnegan@generalhealth.org If you want to talk, please feel free to contact me at: Joe Finnegan, Medical Physicist Baton Rouge General Medical Center 225-387-7865 225-381-6578 (fax) 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 21 13:18:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17A7fA-0000DK-00; Tue, 21 May 2002 13:18:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0DCF01112FD; Tue, 21 May 2002 14:17:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA20822 for linac-eng-list; Tue, 21 May 2002 05:54:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA20818 for ; Tue, 21 May 2002 05:54:16 -0500 (CDT) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17A7HS-0004TE-00; Tue, 21 May 2002 11:54:14 +0100 Received: from relay.nhs.uk (194.62.42.142) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3CE3CE800005980A for linac-eng@plato.aristotle.net; Tue, 21 May 2002 11:54:14 +0100 Received: from mailsmtp (194.155.32.226) by relay.nhs.uk (Syntegra-2 6.5.016) id 3CE4D83200064B61 for linac-eng@plato.aristotle.net; Tue, 21 May 2002 11:54:14 +0100 Received: from rchtextr1.rcht.swest.nhs.uk ([172.16.2.65]) by mailsmtp (3.05.3.4) with ESMTP id LAA09778 for ; Tue, 21 May 2002 11:29:48 +0100 Received: by rchtextr1.rcht.swest.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Tue, 21 May 2002 11:45:59 +0100 Message-ID: <1BE9187263FBD411AEC600B0D068503E0118A698@rchtextr6.rcht.swest.nhs.uk> From: "Scott, Brian - RCHT" To: linac-eng@plato.aristotle.net Subject: Primus Bending Magnet Current Date: Tue, 21 May 2002 11:47:39 +0100 X-Mailer: Internet Mail Service (5.5.2653.19) MIME-Version: 1.0 (Generated by NET-TEL Mailguard SMTP version 3.5.3.4) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Scott, Brian - RCHT" To: linac-eng@plato.aristotle.net Subject: Primus Bending Magnet Current Date: Tue, 21 May 2002 11:47:39 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi List I am very new to this field but I we are experiencing changes in the Bending Magnet Current differing from the selected value. Has anyone else experienced these problems and failures of the BMI PSU? Brian Scott 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 23 21:48:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17AyZt-0006m6-00; Thu, 23 May 2002 21:48:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2C9041112F3; Thu, 23 May 2002 22:46:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA27258 for linac-eng-list; Thu, 23 May 2002 14:04:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA27246 for ; Thu, 23 May 2002 14:04:12 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id OAA14375; Thu, 23 May 2002 14:58:07 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xmaa14146; Thu, 23 May 02 14:57:36 -0400 Received: from bhcgif01.bhcpns.org ([10.1.1.4]) by bhcmail1.bhcpns.org (Lotus Domino Release 5.0.9) with ESMTP id 2002052313584408:1465 ; Thu, 23 May 2002 13:58:44 -0500 Received: by bhcgif01.bhcpns.org; id OAA13124; Thu, 23 May 2002 14:53:31 -0400 (EDT) Received: from nodnsquery(206.66.224.2) by bhcgif01.bhcpns.org via smap (V5.5) id xma012998; Thu, 23 May 02 14:53:04 -0400 Received: from localhost (localhost) by plato.aristotle.net (8.9.0/8.9.0) with internal id NAA26011; Thu, 23 May 2002 13:59:07 -0500 (CDT) X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 MIME-Version: 1.0 Subject: Oldelft VR pcb's To: Message-ID: Date: Thu, 23 May 2002 14:02:43 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 05/23/2002 02:02:44 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Oldelft VR pcb's To: Date: Thu, 23 May 2002 14:02:43 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.9 |November 16, 2001) at 05/23/2002 02:02:44 PM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good Day.... I need some information please... Sometime ago I ordered replacement VR boards for one of our simulators but I seem to have lost the information on who I got them from. Please if any one has a source name please forward it to me it will be appreciated greatly... I'm in need p/n 5940.XX type Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 24 00:43:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17B1Ig-000090-00; Fri, 24 May 2002 00:43:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CBF661112F5; Fri, 24 May 2002 01:41:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA13629 for linac-eng-list; Thu, 23 May 2002 17:15:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA13581 for ; Thu, 23 May 2002 17:15:54 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id HAA08213; Fri, 24 May 2002 07:45:19 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id HAA08207; Fri, 24 May 2002 07:45:18 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id HAA05911; Fri, 24 May 2002 07:45:18 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma005606; Fri, 24 May 02 07:44:50 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id HAA12584; Fri, 24 May 2002 07:44:50 +0930 (CST) Message-Id: <200205232214.HAA12584@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 24 May 02 07:44:50 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 24 May 02 07:44:30 +0930 From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: lsullivan@bhcpns.org Date: Fri, 24 May 2002 07:44:28 +0930 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Oldelft VR pcb's Cc: linac-eng@plato.aristotle.net In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: lsullivan@bhcpns.org Date: Fri, 24 May 2002 07:44:28 +0930 Content-type: text/plain; charset=US-ASCII Subject: Re: Oldelft VR pcb's Cc: linac-eng@plato.aristotle.net In-reply-to: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk These boards are manufactured by Electromed Internatinal Ltd 310, Boul. Industriel Sain-Eustach, Quebec, Canada, J7R 5R4 Ph (514) 491 2100 Fax (514) 491 4138 From: lsullivan@bhcpns.org Subject: Oldelft VR pcb's To: Date sent: Thu, 23 May 2002 14:02:43 -0500 > Good Day.... I need some information please... Sometime ago I ordered > replacement VR boards for one of our simulators but I seem to have lost the > information on who I got them from. Please if any one has a source name > please forward it to me it will be appreciated greatly... > I'm in need p/n 5940.XX type > Pensacola Fl > 850-469-2200 > > Andrew Frolov Manager, Radiation Engineering Medical Physics Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 28 11:26:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17CdFM-0003pS-00; Tue, 28 May 2002 11:26:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C862811130B; Tue, 28 May 2002 12:23:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA11115 for linac-eng-list; Tue, 28 May 2002 04:03:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id EAA11108 for ; Tue, 28 May 2002 04:03:29 -0500 (CDT) Received: (qmail 25563 invoked from network); 28 May 2002 09:02:55 -0000 Received: from unknown (HELO webmail02) ([202.45.84.76]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 28 May 2002 09:02:55 -0000 Message-ID: <5303469.1022575631235.JavaMail.root@webmail02> Date: Tue, 28 May 2002 16:47:11 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Ion Chamber Signal Amplitude Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 28 May 2002 16:47:11 +0800 (HKT) From: Jonathan Chan To: linac eng Subject: Ion Chamber Signal Amplitude Content-Type: text/plain; charset=Big5 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Got a question. Has anyone experienced that the MU pot was out of range for adjustment? The MU2 pot in my 2300C/D (#199) for 10X was out. Found out the ion chamber signals (as measured at TP1 and TP2 on B15 and B16, the dose integrator pcbs) were all low in amplitude compared to my records when the ion chamber was replaced in 1998. For example, TP1 and TP2 on B16 were 0.64 volts (peak), but now they are only 0.48 and 0.46 volts for 10x. All energies show a decrease in amplitude. I have to replace R35 on my 10x energy program pcb to make MU1 same as MU1. Any suggestion or recommendation? Jonathan Chan Queen Mary Hospital 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 28 13:35:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17CfGR-0006Bs-00; Tue, 28 May 2002 13:35:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 65E9911130A; Tue, 28 May 2002 14:33:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA13186 for linac-eng-list; Tue, 28 May 2002 06:14:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA13179 for ; Tue, 28 May 2002 06:14:30 -0500 (CDT) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id GAA17361; Tue, 28 May 2002 06:10:45 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BC7.003D46B8 ; Tue, 28 May 2002 06:09:18 -0500 X-Lotus-FromDomain: MDACC To: Jonathan Chan Cc: linac eng Message-ID: <86256BC7.003D45A1.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 28 May 2002 06:13:08 -0500 Subject: Re: Ion Chamber Signal Amplitude Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Jonathan Chan Cc: linac eng Date: Tue, 28 May 2002 06:13:08 -0500 Subject: Re: Ion Chamber Signal Amplitude Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Has the amplitude change in all energies? Have you checked the ion chamber cables? Did this change happen overnight after changeing the chamber or over time? Changing the resister might solve your problem for now, But I would keep a close eye on it. Take care 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 28 15:04:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Cgdv-00081T-00; Tue, 28 May 2002 15:04:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 922B511130A; Tue, 28 May 2002 16:01:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA15464 for linac-eng-list; Tue, 28 May 2002 07:45:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from im1.sec.tds.net (im1.mail.tds.net [216.170.230.91]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA15460 for ; Tue, 28 May 2002 07:45:55 -0500 (CDT) Received: from RANDY (vhil2pool0-a17.il.tds.net [208.137.72.178]) by im1.sec.tds.net (8.12.3/8.12.3) with SMTP id g4SCjomx020804; Tue, 28 May 2002 07:45:52 -0500 (CDT) Reply-To: From: "Carl LaFoone" To: "Jonathan Chan" , "linac eng" Subject: RE: Ion Chamber Signal Amplitude Date: Tue, 28 May 2002 07:43:00 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="Big5" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: <5303469.1022575631235.JavaMail.root@webmail02> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Carl LaFoone" To: "Jonathan Chan" , "linac eng" Subject: RE: Ion Chamber Signal Amplitude Date: Tue, 28 May 2002 07:43:00 -0500 Content-Type: text/plain; charset="Big5" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: <5303469.1022575631235.JavaMail.root@webmail02> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Johnathan, Check for resistive contacts on the relay that interacts with the MU2 pot in question. This would be applicable only in this change has occured on 10X only. Carl "Randy" LaFoone Radparts.Com,Inc. -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Jonathan Chan Sent: Tuesday, May 28, 2002 3:47 AM To: linac eng Subject: Ion Chamber Signal Amplitude Got a question. Has anyone experienced that the MU pot was out of range for adjustment? The MU2 pot in my 2300C/D (#199) for 10X was out. Found out the ion chamber signals (as measured at TP1 and TP2 on B15 and B16, the dose integrator pcbs) were all low in amplitude compared to my records when the ion chamber was replaced in 1998. For example, TP1 and TP2 on B16 were 0.64 volts (peak), but now they are only 0.48 and 0.46 volts for 10x. All energies show a decrease in amplitude. I have to replace R35 on my 10x energy program pcb to make MU1 same as MU1. Any suggestion or recommendation? Jonathan Chan Queen Mary Hospital 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue May 28 20:25:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Cleg-0004Ju-00; Tue, 28 May 2002 20:25:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2E8EA11130F; Tue, 28 May 2002 21:22:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA01388 for linac-eng-list; Tue, 28 May 2002 12:59:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA01384 for ; Tue, 28 May 2002 12:58:59 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Tue, 28 May 2002 13:00:45 -0500 Message-ID: From: "Turner, Guy" To: "'Jonathan Chan'" , linac eng Subject: RE: Ion Chamber Signal Amplitude Date: Tue, 28 May 2002 13:00:44 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Jonathan Chan'" , linac eng Subject: RE: Ion Chamber Signal Amplitude Date: Tue, 28 May 2002 13:00:44 -0500 Content-Type: text/plain; charset="big5" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk The sensitivity of ion chambers tend to decrease over time, although my experience has been that you should not be running out of calibration adjustment due to chamber aging in just 4 years. If you notice the same trend in all energies you may be near the end of life for the chamber. You may be able to get a little more life out of it by changing resistors on the 10X program board. You may notice you are near the end of the MU1 and MU2 pots on some of the other energies as well. -----Original Message----- From: Jonathan Chan [mailto:sky8808@hutchcity.com] Sent: Tuesday, May 28, 2002 3:47 AM To: linac eng Subject: Ion Chamber Signal Amplitude Got a question. Has anyone experienced that the MU pot was out of range for adjustment? The MU2 pot in my 2300C/D (#199) for 10X was out. Found out the ion chamber signals (as measured at TP1 and TP2 on B15 and B16, the dose integrator pcbs) were all low in amplitude compared to my records when the ion chamber was replaced in 1998. For example, TP1 and TP2 on B16 were 0.64 volts (peak), but now they are only 0.48 and 0.46 volts for 10x. All energies show a decrease in amplitude. I have to replace R35 on my 10x energy program pcb to make MU1 same as MU1. Any suggestion or recommendation? Jonathan Chan Queen Mary Hospital 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 29 00:49:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17CpmL-0006yK-00; Wed, 29 May 2002 00:49:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2CF8A11130A; Wed, 29 May 2002 01:46:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA10249 for linac-eng-list; Tue, 28 May 2002 17:28:24 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA10244 for ; Tue, 28 May 2002 17:28:21 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id KAA22800 for ; Wed, 29 May 2002 10:10:23 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 29 May 2002 10:31:18 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 29 May 2002 10:27:32 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 29 May 2002 10:27:15 +1200 From: "Dave Pinchin" To: , Subject: Re: Ion Chamber Signal Amplitude Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA10245 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 29 May 2002 10:27:15 +1200 From: "Dave Pinchin" To: , Subject: Re: Ion Chamber Signal Amplitude Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA10245 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, They usually change as the pressure ( 2PSI above atmospheric) leaks out. The usual end of life scenario is that the chamber reaches atmospheric pressure and then next time you have a nice day for the beach (not joking here) it decides to fail. In reality it is the higher-than-yesterday air pressure that collapses the chamber resulting in physics having a cow. The machine needs a recal on all energies. It may well be time to bite the bullet. This would mean you could sit on the beachnext week without the pager going off. Good luck from the Very Wintery South Dave. >>> Jonathan Chan 28/05/02 20:47:11 >>> Got a question. Has anyone experienced that the MU pot was out of range for adjustment? The MU2 pot in my 2300C/D (#199) for 10X was out. Found out the ion chamber signals (as measured at TP1 and TP2 on B15 and B16, the dose integrator pcbs) were all low in amplitude compared to my records when the ion chamber was replaced in 1998. For example, TP1 and TP2 on B16 were 0.64 volts (peak), but now they are only 0.48 and 0.46 volts for 10x. All energies show a decrease in amplitude. I have to replace R35 on my 10x energy program pcb to make MU1 same as MU1. Any suggestion or recommendation? Jonathan Chan Queen Mary Hospital ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 29 00:54:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17CprW-00074J-00; Wed, 29 May 2002 00:54:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B861D11130A; Wed, 29 May 2002 01:51:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA10410 for linac-eng-list; Tue, 28 May 2002 17:36:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from carme.scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA10406 for ; Tue, 28 May 2002 17:36:28 -0500 (CDT) Received: from neried. (neried.scf.sk.ca [172.24.48.3]) by carme.scf.sk.ca (Rockliffe SMTPRA 4.5.4) with SMTP id for ; Tue, 28 May 2002 16:38:17 -0600 Received: (from RPC035 [172.24.49.236]) by neried. (NAVGW 2.5.1.6) with SMTP id M2002052816360015304 ; Tue, 28 May 2002 16:36:00 -0600 From: scot thiesson To: linac-eng Cc: canadalist@yahoogroups.com Date: Tue, 28 May 2002 16:35:35 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. Message-Id: Subject: Siemens Primus instabilities MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: linac-eng Cc: canadalist@yahoogroups.com Date: Tue, 28 May 2002 16:35:35 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. Subject: Siemens Primus instabilities Content-Type: text/plain; charset="windows-1252" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Subject: Primus 4/10 energy instabilities Manufacturer: Siemens Model: Primus Type: Dual photon 4/10 multiple electron S/N: M3469 Software: V7.2 Problem Description: energy instabilities during commissioning During commissioning of a new Primus 4/10 it was noted that there were energy instabilities in HIX mode and dose amplitude pulse variations in electron mode. These instabilities made it impossible to continue with commissioning work and the manufacturer was called in to investigate. It was discovered that there were actually several problems with two of the subsystems of the machine. The first problem was with the RF driver supplied by Siemens. This unit exhibits an amplitude variation over AFC preset position the makes saturation of the klystron difficult especially considering that the two photon energies are quite different for AFC preset. After several Siemens replacements, Mevex Corp. here in Canada replaced the driver (I think it was after the fourth Siemens unit) with their drop in replacement design. The Mevex driver exhibited a much cleaner pulse shape and had no AFC dependency associated with it. I understand that there are several sites who have been using the Mevex driver and I would like to know of the long term stability and reliability of these units. Unfortunately due to warranty questions we are unable to continue using the Mevex driver and have gone back to number (4?) Siemens RF driver. This brings us to the next observed problem and for us far trickier to find. The beam/energy instabilities were thought to be failures of the Injector board set in the gantry. I think we got up to board set number four before we removed the potting on the gun and found... nothing wrong. So to make a long story short it was discovered that the BIAS and CLIPPER supplies on the injector HV board (schematic 1927206 TP6 and TP8 to TP2) were changing slightly during operation due to noise induction. During the testing phase I believe we observed a swing of around 2 volts for the CLIPPER setting and 4 volts for the BIAS supply. These variations can be quite significant and will be seen as bouncing on the INJI pulse and beam current. They will obviously also change the flatness and energy of the beam especially in HIX mode. In electron mode these variations in the bias supplies will cause swings in amplitude of the dose pulses causing closed loop machine instabilities. My question to the list is has anyone else seen this bouncing of injector / beam current? We do have a partial fix here that will allow us to continue with commissioning but I would like to hear from the Primus owners out there. Scot Thiesson Senior Physics Tech. Allan Blair Cancer Centre Regina Saskatchewan Canada (306) 766-2286 sthiesson@scf.sk.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed May 29 14:36:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17D2h5-0001mc-00; Wed, 29 May 2002 14:36:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BF62311130E; Wed, 29 May 2002 15:33:54 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA24749 for linac-eng-list; Wed, 29 May 2002 06:14:21 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA24745 for ; Wed, 29 May 2002 06:14:19 -0500 (CDT) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Wed, 29 May 2002 07:13:44 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAD4@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Jonathan Chan'" , linac eng Subject: RE: Ion Chamber Signal Amplitude Date: Wed, 29 May 2002 07:13:43 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Jonathan Chan'" , linac eng Subject: RE: Ion Chamber Signal Amplitude Date: Wed, 29 May 2002 07:13:43 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I would not modify the dose PCB. Something is wrong. If both MU1 and MU2 changed, maybe the machine is tuned to make the same dose with more pulses, so each pulse is lower. Maybe one channel hits a limit before the other. Gun I changed? Tuned 15% higher open loop in RR3? Or both ion chambers are open to air. If only one channel, suspect one ion chamber open, or circuit problem. The ion 1 and 2 results should also be helpful in case of a sudden change, if looked at before they are adjusted. The rule here is that no adjustment of 3% or more in calibration is allowed without investigation. Typically, 1% is investigated. good luck > -----Original Message----- > From: Jonathan Chan [SMTP:sky8808@hutchcity.com] > Sent: Tuesday, May 28, 2002 4:47 AM > To: linac eng > Subject: Ion Chamber Signal Amplitude > > Got a question. > > Has anyone experienced that the MU pot was out of range for adjustment? > The MU2 pot in my 2300C/D (#199) for 10X was out. Found out the ion chamber > signals (as measured at TP1 and TP2 on B15 and B16, the dose integrator pcbs) > were all low in amplitude compared to my records when the ion chamber was > replaced in 1998. For example, TP1 and TP2 on B16 were 0.64 volts (peak), but > now they are only 0.48 and 0.46 volts for 10x. All energies show a decrease > in amplitude. > > I have to replace R35 on my 10x energy program pcb to make MU1 same as MU1. > > Any suggestion or recommendation? > > Jonathan Chan > Queen Mary Hospital 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 30 18:13:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DSY6-0000bo-00; Thu, 30 May 2002 18:13:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 936E4111311; Thu, 30 May 2002 19:10:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA29949 for linac-eng-list; Thu, 30 May 2002 10:22:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m05.mx.aol.com (imo-m05.mx.aol.com [64.12.136.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29945 for ; Thu, 30 May 2002 10:22:56 -0500 (CDT) From: BMic644@aol.com Received: from BMic644@aol.com by imo-m05.mx.aol.com (mail_out_v32.5.) id y.165.dfb7aa7 (4217) for ; Thu, 30 May 2002 11:22:19 -0400 (EDT) Message-ID: <165.dfb7aa7.2a279dab@aol.com> Date: Thu, 30 May 2002 11:22:19 EDT Subject: Not Receiving Postings To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10509 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: BMic644@aol.com Date: Thu, 30 May 2002 11:22:19 EDT Subject: Not Receiving Postings To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Does anyone know of any problems with this server? I have not been receiving any postings recently. Barry Michael 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 30 19:29:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DTjY-0001NN-00; Thu, 30 May 2002 19:29:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B155111311; Thu, 30 May 2002 20:26:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA02858 for linac-eng-list; Thu, 30 May 2002 12:08:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.radonc.musc.edu (xchange.RadOnc.MUSC.EDU [128.23.55.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA02854 for ; Thu, 30 May 2002 12:08:23 -0500 (CDT) Received: by xchange.RadOnc.MUSC.EDU with Internet Mail Service (5.5.2653.19) id ; Thu, 30 May 2002 13:07:52 -0400 Message-ID: <0758E63D5DEC3B458FF43D068F1CC73601596A@xchange.RadOnc.MUSC.EDU> From: "Fort, Don" To: "'BMic644@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Not Receiving Postings Date: Thu, 30 May 2002 13:07:52 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Fort, Don" To: "'BMic644@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Not Receiving Postings Date: Thu, 30 May 2002 13:07:52 -0400 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Just the usual servings of SPAM, SPAM, SPAM, SPAM, SPAM, SPAM, SPAM, SPAM and SPAM. Maybe a few on Ion chambers and perhaps the spammers have harvested the addresses and may be e-mailing around the server. -----Original Message----- From: BMic644@aol.com [mailto:BMic644@aol.com] Sent: Thursday, May 30, 2002 11:22 AM To: linac-eng@plato.aristotle.net Subject: Not Receiving Postings Does anyone know of any problems with this server? I have not been receiving any postings recently. Barry Michael 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 30 20:30:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DUgu-00022p-00; Thu, 30 May 2002 20:30:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2D0031112F7; Thu, 30 May 2002 21:27:24 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA04377 for linac-eng-list; Thu, 30 May 2002 13:11:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA04373 for ; Thu, 30 May 2002 13:11:12 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KICB1OMHNS006D07@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Thu, 30 May 2002 14:10:42 -0400 (EDT) Date: Thu, 30 May 2002 14:08:30 -0400 From: "Peter E. Vitali" Subject: Re: Not Receiving Postings To: "Fort, Don" Cc: "'BMic644@aol.com'" , linac-eng@plato.aristotle.net Message-id: <3CF66A3B.7B66B495@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <0758E63D5DEC3B458FF43D068F1CC73601596A@xchange.RadOnc.MUSC.EDU> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 30 May 2002 14:08:30 -0400 From: "Peter E. Vitali" Subject: Re: Not Receiving Postings To: "Fort, Don" Cc: "'BMic644@aol.com'" , linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Don: I haven't seen any spam for quite a while now. Barry's problem may be something else. Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 30 21:25:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DVYJ-0002hZ-00; Thu, 30 May 2002 21:25:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 63A31111312; Thu, 30 May 2002 22:22:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA19950 for linac-eng-list; Thu, 30 May 2002 14:07:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA19920 for ; Thu, 30 May 2002 14:07:44 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Thu, 30 May 2002 14:09:47 -0500 Message-ID: From: "Turner, Guy" To: linac-eng@plato.aristotle.net Subject: RE: Not Receiving Postings Date: Thu, 30 May 2002 14:09:46 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: linac-eng@plato.aristotle.net Subject: RE: Not Receiving Postings Date: Thu, 30 May 2002 14:09:46 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Me either. I was surprised to read that. -----Original Message----- From: Peter E. Vitali [mailto:peter.vitali@yale.edu] Sent: Thursday, May 30, 2002 1:08 PM To: Fort, Don Cc: 'BMic644@aol.com'; linac-eng@plato.aristotle.net Subject: Re: Not Receiving Postings Don: I haven't seen any spam for quite a while now. Barry's problem may be something else. Pete Vitali 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 30 21:59:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DW5K-00032O-00; Thu, 30 May 2002 21:59:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B9E5F1112F7; Thu, 30 May 2002 22:56:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA29623 for linac-eng-list; Thu, 30 May 2002 14:39:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA29617 for ; Thu, 30 May 2002 14:39:40 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: Not Receiving Postings Date: Thu, 30 May 2002 15:39:03 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386AB@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Not Receiving Postings Thread-Index: AcIIDV05Jz/Qdj3kTkiDlm1ElwY6UwAAh9pw From: "Tim Cullen" To: "Peter E. Vitali" , "Fort, Don" Cc: , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA29619 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" Subject: RE: Not Receiving Postings Date: Thu, 30 May 2002 15:39:03 -0400 Thread-Topic: Not Receiving Postings Thread-Index: AcIIDV05Jz/Qdj3kTkiDlm1ElwY6UwAAh9pw From: "Tim Cullen" To: "Peter E. Vitali" , "Fort, Don" Cc: , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA29619 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I couldn't post a reply the other week, but could post a test message? I would like to find out if anyone has had a problem with the EMI accelerator solenoid supply just randomly tripping the CB in the AM. Was it the soft start relay circuit? This is on a 10 yr old C2 machine. Hard to troubleshoot because it can go weeks before it will do it again. Tim I thought y'all might like to read this: Why you should be careful what you say on listservers Q: How many list subscribers to a listserv does it take to change a light bulb? A: 1,331: 1 to change the light bulb and to post to the list that the light bulb has been changed. 14 to share similar experiences of changing light bulbs and how the light bulb could have been changed differently. 7 to caution about the dangers of changing light bulbs. 27 to point out spelling/grammar errors in posts about changing light bulbs. 53 to flame the spell checkers 156 to write to the list administrator complaining about the light bulb discussion and its inappropriateness to this mail list. 41 to correct spelling in the spelling/grammar flames. 109 to post that this list is not about light bulbs and to please take this email exchange to alt.lite.bulb 203 to demand that cross posting to alt.grammar, alt.spelling and alt.punctuation about changing light bulbs be stopped. 111 to defend the posting to this list saying that we all use light bulbs and therefore the posts **are** relevant to this mail list. 306 to debate which method of changing light bulbs is superior, where to buy the best light bulbs, what brand of light bulbs work best for this technique, and what brands are faulty. 27 to post URLs where one can see examples of different light bulbs 14 to post that the URLs were posted incorrectly, and to post corrected URLs. 3 to post about links they found from the URLs that are relevant to this list which makes light bulbs relevant to this list. 33 to summarize all posts to date, then quote them including all headers and footers, and then add "Me Too." 12 to post to the list that they are unsubscribing because they cannot handle the light bulb controversy. 19 to quote the "Me Too's" to say, "Me Three." 4 to suggest that posters request the light bulb FAQ. 1 to propose new alt.change.lite.bulb newsgroup. 47 to say this is just what alt.physic.cold_fusion was meant for, leave it here. 143 votes for alt.lite.bulb. > -----Original Message----- > From: Peter E. Vitali [mailto:peter.vitali@yale.edu] > Sent: Thursday, May 30, 2002 2:09 PM > To: Fort, Don > Cc: 'BMic644@aol.com'; linac-eng@plato.aristotle.net > Subject: Re: Not Receiving Postings > > > Don: > > I haven't seen any spam for quite a while now. > > Barry's problem may be something else. > > > Pete Vitali > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu May 30 22:54:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DWvu-0003gt-00; Thu, 30 May 2002 22:54:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4D5291112F7; Thu, 30 May 2002 23:51:02 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA19095 for linac-eng-list; Thu, 30 May 2002 15:35:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA19057 for ; Thu, 30 May 2002 15:35:47 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA02209 for ; Fri, 31 May 2002 08:17:38 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 31 May 2002 08:38:42 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 31 May 2002 08:34:57 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 31 May 2002 08:34:44 +1200 From: "Dave Pinchin" To: , Subject: RE: Not Receiving Postings Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA19072 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 31 May 2002 08:34:44 +1200 From: "Dave Pinchin" To: , Subject: RE: Not Receiving Postings Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA19072 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day Tim, We had a prob with our EMI (acc sol) tripping it's breaker. Found that if control cable goes OPEN then I goes to MAX and *POP*. We added an extra cable from console th PS to debug and it has never happened since. I guess as it's ~8 yrs later that it's time I tracked down exactly where the break is. (Gantry windup??? What's the betting it's the blue wire??). BTW. I suggest that a cross posting to alt.maths.stuff as they may be interested in the statistics............. :D >>> "Tim Cullen" 31/05/02 07:39:03 >>> I couldn't post a reply the other week, but could post a test message? I would like to find out if anyone has had a problem with the EMI accelerator solenoid supply just randomly tripping the CB in the AM. Was it the soft start relay circuit? This is on a 10 yr old C2 machine. Hard to troubleshoot because it can go weeks before it will do it again. Tim I thought y'all might like to read this: Why you should be careful what you say on listservers Q: How many list subscribers to a listserv does it take to change a light bulb? A: 1,331: 1 to change the light bulb and to post to the list that the light bulb has been changed. 14 to share similar experiences of changing light bulbs and how the light bulb could have been changed differently. 7 to caution about the dangers of changing light bulbs. 27 to point out spelling/grammar errors in posts about changing light bulbs. 53 to flame the spell checkers 156 to write to the list administrator complaining about the light bulb discussion and its inappropriateness to this mail list. 41 to correct spelling in the spelling/grammar flames. 109 to post that this list is not about light bulbs and to please take this email exchange to alt.lite.bulb 203 to demand that cross posting to alt.grammar, alt.spelling and alt.punctuation about changing light bulbs be stopped. 111 to defend the posting to this list saying that we all use light bulbs and therefore the posts **are** relevant to this mail list. 306 to debate which method of changing light bulbs is superior, where to buy the best light bulbs, what brand of light bulbs work best for this technique, and what brands are faulty. 27 to post URLs where one can see examples of different light bulbs 14 to post that the URLs were posted incorrectly, and to post corrected URLs. 3 to post about links they found from the URLs that are relevant to this list which makes light bulbs relevant to this list. 33 to summarize all posts to date, then quote them including all headers and footers, and then add "Me Too." 12 to post to the list that they are unsubscribing because they cannot handle the light bulb controversy. 19 to quote the "Me Too's" to say, "Me Three." 4 to suggest that posters request the light bulb FAQ. 1 to propose new alt.change.lite.bulb newsgroup. 47 to say this is just what alt.physic.cold_fusion was meant for, leave it here. 143 votes for alt.lite.bulb. > -----Original Message----- > From: Peter E. Vitali [mailto:peter.vitali@yale.edu] > Sent: Thursday, May 30, 2002 2:09 PM > To: Fort, Don > Cc: 'BMic644@aol.com'; linac-eng@plato.aristotle.net > Subject: Re: Not Receiving Postings > > > Don: > > I haven't seen any spam for quite a while now. > > Barry's problem may be something else. > > > Pete Vitali > > ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 31 00:53:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DYn3-0004yu-00; Fri, 31 May 2002 00:53:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 180FD1112F7; Fri, 31 May 2002 01:50:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA27152 for linac-eng-list; Thu, 30 May 2002 17:32:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA27148 for ; Thu, 30 May 2002 17:32:06 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: Varian EMI solenoid power supply Date: Thu, 30 May 2002 18:31:35 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386AC@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Varian EMI solenoid power supply Thread-Index: AcIIGJc9xLM3CWcjSLmF8bDHH6Eu2wABJ9PQ From: "Tim Cullen" To: "Loeks, Michael" Cc: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA27149 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" Subject: RE: Varian EMI solenoid power supply Date: Thu, 30 May 2002 18:31:35 -0400 Thread-Topic: Varian EMI solenoid power supply Thread-Index: AcIIGJc9xLM3CWcjSLmF8bDHH6Eu2wABJ9PQ From: "Tim Cullen" To: "Loeks, Michael" Cc: X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA27149 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Mike and Dave, yea, that connector burning up has happened to me before on another machine. I checked that but no luck. I also checked all the connectors going back to the console for the program voltage but no luck. In other words flexing and moving things around doesn't seem to have an effect. Although it seems like the cabling has the highest probability on this age of machine. On this one I think time will tell. I mentioned the soft start because it only happens in the AM (of course I can come in early a month of Sundays and it won't do it) before warm-up. Thanks for the input. I'm going to sign out of here for while and take one of those beach holidays I heard someone mention not too long back. Y'all don't forget about the RSEA meeting coming up in Montreal in July now. Hope to see a lot of you there. Tim > -----Original Message----- > From: Loeks, Michael [mailto:MLoeks@providence.org] > Sent: Thursday, May 30, 2002 4:27 PM > To: Tim Cullen > Cc: linac-eng@plato.aristotle.net > Subject: Varian EMI solenoid power supply > > > Tim, > We had a solenoid power supply that would trip its circuit > breaker when the machine went through no mode. One of the > phases would drop when the load went to maximum. Turned out > to be a burned up connector at the AC power distribution box > in the stand where all of the EMI supplies plug in. I found > it when I unplugged the connector to measure the voltage at > the connector. The connector was warm to the touch and all > the others were at room temperature. > Michael Loeks > Providence Health System > > -----Original Message----- > From: Tim Cullen [mailto:tcullen@wfubmc.edu] > Sent: Thursday, May 30, 2002 12:39 PM > To: Peter E. Vitali; Fort, Don > Cc: BMic644@aol.com; linac-eng@plato.aristotle.net > Subject: RE: Not Receiving Postings > > I couldn't post a reply the other week, but could post a test > message? > I would like to find out if anyone has had a problem with the > EMI accelerator solenoid supply just randomly tripping the CB > in the AM. Was it the soft start relay circuit? This is on a > 10 yr old C2 machine. Hard to troubleshoot because it can go > weeks before it will do it again. Tim > > > > > ************************************************************** > ************** > This message is intended for the sole use of the individual > and entity to whom it is addressed, and may contain > information that is privileged, confidential and exempt from > disclosure under applicable law. If you are not the intended > addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, > copy, disclose or distribute to anyone the message or any > information contained in the message. If you have received > this message in error, please immediately advise the sender > by reply email and delete the message. Thank you very > much. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Jun 01 08:28:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17E2Nh-0004g8-00; Sat, 01 Jun 2002 08:28:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 190F8111314; Sat, 1 Jun 2002 09:25:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA07555 for linac-eng-list; Fri, 31 May 2002 22:03:33 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m04.mx.aol.com (imo-m04.mx.aol.com [64.12.136.7]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA07551 for ; Fri, 31 May 2002 22:03:31 -0500 (CDT) From: JDDIHWRR@aol.com Received: from JDDIHWRR@aol.com by imo-m04.mx.aol.com (mail_out_v32.5.) id y.1a8.313a4de (25915) for ; Fri, 31 May 2002 23:02:58 -0400 (EDT) Message-ID: <1a8.313a4de.2a299362@aol.com> Date: Fri, 31 May 2002 23:02:58 EDT Subject: unwanted site hits To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_1a8.313a4de.2a299362_boundary" X-Mailer: AOL 6.0 for Windows US sub 10540 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: JDDIHWRR@aol.com Date: Fri, 31 May 2002 23:02:58 EDT Subject: unwanted site hits To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_1a8.313a4de.2a299362_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_1a8.313a4de.2a299362_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit To the list, I am writing to the list with a problem. I was terminated today from my position by our Corporate IM people. I was accused of initiating site visits to restricted sites. I was assured that my PC was the originator. I know that we had some discussion about SPAMMING and other problems on this list. Apparently this started on the 16th of April. I have never initiated a site visit from my PC. Anyone who understands that He will lose his job would be insane to do that, especially from his own PC. I need to know if anyone else has come up against this problem. I am questioning all the server lists that I am a member of. Any reports will be appreciated and looked into by my HR Department. Thanking you for your help in advance. Jerry Dukes, Texas. --part1_1a8.313a4de.2a299362_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit To the list,
    I am writing to the list with a problem. I was terminated today from my position by our Corporate IM people.
    I was accused of initiating site visits to restricted sites. I was assured that my PC was the originator.
    I know that we had some discussion about SPAMMING and other problems on this list.
    Apparently this started on the 16th of April.
    I have never initiated a site visit from my PC. Anyone who understands that He will lose his job would be insane to do that, especially from his own PC.
    I need to know if anyone else has come up against this problem.
    I am questioning all the server lists that I am a member of.
    Any reports will be appreciated and looked into by my HR Department.
    Thanking you for your help in advance.
    Jerry Dukes, Texas.     --part1_1a8.313a4de.2a299362_boundary-- 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Jun 01 20:11:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17EDM2-0003PR-00; Sat, 01 Jun 2002 20:11:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5D7921112FC; Sat, 1 Jun 2002 21:08:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA21051 for linac-eng-list; Sat, 1 Jun 2002 12:51:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f259.law8.hotmail.com [216.33.240.134]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA21047 for ; Sat, 1 Jun 2002 12:51:02 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sat, 1 Jun 2002 10:50:56 -0700 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Sat, 01 Jun 2002 17:50:55 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: JDDIHWRR@aol.com, linac-eng@plato.aristotle.net Subject: Re: unwanted site hits Date: Sat, 01 Jun 2002 12:50:55 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 01 Jun 2002 17:50:56.0072 (UTC) FILETIME=[E15F3C80:01C20994] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: JDDIHWRR@aol.com, linac-eng@plato.aristotle.net Subject: Re: unwanted site hits Date: Sat, 01 Jun 2002 12:50:55 -0500 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 01 Jun 2002 17:50:56.0072 (UTC) FILETIME=[E15F3C80:01C20994] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Sounds Crazy to me, what do you mean by initiating site visits? If there are restricted sites for your organization I would think they would be using software to not allow access to those sites. I would get a attorney, subpoena all the records, and hard drives for all the computers in the organization and see if you were singled out. >From: JDDIHWRR@aol.com >To: linac-eng@plato.aristotle.net >Subject: unwanted site hits >Date: Fri, 31 May 2002 23:02:58 EDT > >To the list, >I am writing to the list with a problem. I was terminated today from my >position by our Corporate IM people. >I was accused of initiating site visits to restricted sites. I was assured >that my PC was the originator. >I know that we had some discussion about SPAMMING and other problems on >this >list. >Apparently this started on the 16th of April. >I have never initiated a site visit from my PC. Anyone who understands that >He will lose his job would be insane to do that, especially from his own >PC. >I need to know if anyone else has come up against this problem. >I am questioning all the server lists that I am a member of. >Any reports will be appreciated and looked into by my HR Department. >Thanking you for your help in advance. >Jerry Dukes, Texas. ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Jun 02 00:04:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17EGz2-0005db-00; Sun, 02 Jun 2002 00:04:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 925A4111317; Sun, 2 Jun 2002 01:00:59 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA24630 for linac-eng-list; Sat, 1 Jun 2002 16:41:21 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA24626 for ; Sat, 1 Jun 2002 16:41:18 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Sat, 1 Jun 2002 16:43:26 -0500 Message-ID: From: "Turner, Guy" To: "'JDDIHWRR@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: unwanted site hits Date: Sat, 1 Jun 2002 16:43:18 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C209B5.577E9800" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'JDDIHWRR@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: unwanted site hits Date: Sat, 1 Jun 2002 16:43:18 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C209B5.577E9800" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C209B5.577E9800 Content-Type: text/plain; charset="iso-8859-1" Jerry, E-mail spam is unwanted messages that appear in your e-mail box. As discussed on this list, it can contain graphic language that may trip some monitoring programs if your company filters for that sort of thing. Spam may contain links to adult web sites, that, if purposely clicked on could initiate an avalanche of web pages opening that you can not stop easily (this is referred to as "mouse trapping"). But even this type of 'accidental' Web browsing could easily be discerned in an audit log. It sounds like someone in your corporate I.T. department saw your computers IP address show up in their Web browsing audit logs as a consistant repeat offender. At least I would hope so, if not you have someone dangerously ignorant at level of great responsibility. Anyone worth their salt with that responsibility can easily tell the difference between an accidental Web browsing incident and a deliberate, intentional Web browsing session. Usually HR will want to see a pattern of deliberate unacceptable Web browsing over a period of time before they take action as drastic as termination. They should have also done an investigation as to whether your IP address could have been spoofed, or if anyone else could have gained unauthorized access to your PC, either through password stealing, cracking or you violating policy and giving it to someone. In any case, spam on this list, or any other list, didn't have anything to do with your termination from your description of the reasons you were given by your former HR department. Sorry, I know this doesn't help your situation much. Good luck. -----Original Message----- From: JDDIHWRR@aol.com [mailto:JDDIHWRR@aol.com] Sent: Friday, May 31, 2002 10:03 PM To: linac-eng@plato.aristotle.net Subject: unwanted site hits To the list, I am writing to the list with a problem. I was terminated today from my position by our Corporate IM people. I was accused of initiating site visits to restricted sites. I was assured that my PC was the originator. I know that we had some discussion about SPAMMING and other problems on this list. Apparently this started on the 16th of April. I have never initiated a site visit from my PC. Anyone who understands that He will lose his job would be insane to do that, especially from his own PC. I need to know if anyone else has come up against this problem. I am questioning all the server lists that I am a member of. Any reports will be appreciated and looked into by my HR Department. Thanking you for your help in advance. Jerry Dukes, Texas. ------_=_NextPart_001_01C209B5.577E9800 Content-Type: text/html; charset="iso-8859-1" Message
    Jerry,
     
    E-mail spam is unwanted messages that appear in your e-mail box.  As discussed on this list, it can contain graphic language that may trip some monitoring programs if your company filters for that sort of thing.  Spam may contain links to adult web sites, that, if purposely clicked on could initiate an avalanche of web pages opening that you can not stop easily (this is referred to as "mouse trapping").  But even this type of 'accidental' Web browsing could easily be discerned in an audit log.  It sounds like someone in your corporate I.T. department saw your computers IP address show up in their Web browsing audit logs as a consistant repeat offender.  At least I would hope so, if not you have someone dangerously ignorant at level of great responsibility.  Anyone worth their salt with that responsibility can easily tell the difference between an accidental Web browsing incident and a deliberate, intentional Web browsing session.  Usually HR will want to see a pattern of deliberate unacceptable Web browsing over a period of time before they take action as drastic as termination.  They should have also done an investigation as to whether your IP address could have been spoofed, or if anyone else could have gained unauthorized access to your PC, either through password stealing, cracking or you violating policy and giving it to someone.
     
    In any case, spam on this list, or any other list, didn't have anything to do with your termination from your description of the reasons you were given by your former HR department.  Sorry, I know this doesn't help your situation much.  Good luck.
    -----Original Message-----
    From: JDDIHWRR@aol.com [mailto:JDDIHWRR@aol.com]
    Sent: Friday, May 31, 2002 10:03 PM
    To: linac-eng@plato.aristotle.net
    Subject: unwanted site hits

    To the list,
    I am writing to the list with a problem. I was terminated today from my position by our Corporate IM people.
    I was accused of initiating site visits to restricted sites. I was assured that my PC was the originator.
    I know that we had some discussion about SPAMMING and other problems on this list.
    Apparently this started on the 16th of April.
    I have never initiated a site visit from my PC. Anyone who understands that He will lose his job would be insane to do that, especially from his own PC.
    I need to know if anyone else has come up against this problem.
    I am questioning all the server lists that I am a member of.
    Any reports will be appreciated and looked into by my HR Department.
    Thanking you for your help in advance.
    Jerry Dukes, Texas.
    ------_=_NextPart_001_01C209B5.577E9800-- 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Jun 02 19:08:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17EYqB-0001Uy-00; Sun, 02 Jun 2002 19:08:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 44999111319; Sun, 2 Jun 2002 20:04:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA11234 for linac-eng-list; Sun, 2 Jun 2002 11:44:12 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f159.law8.hotmail.com [216.33.241.159]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA11230 for ; Sun, 2 Jun 2002 11:44:11 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 2 Jun 2002 09:43:40 -0700 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Sun, 02 Jun 2002 16:43:40 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: Linac-Eng@plato.aristotle.net Subject: Varian 2100 EXs Date: Sun, 02 Jun 2002 11:43:40 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 02 Jun 2002 16:43:40.0453 (UTC) FILETIME=[A65E6550:01C20A54] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: Linac-Eng@plato.aristotle.net Subject: Varian 2100 EXs Date: Sun, 02 Jun 2002 11:43:40 -0500 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 02 Jun 2002 16:43:40.0453 (UTC) FILETIME=[A65E6550:01C20A54] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi to all, I am sick of leaks, another one friday took out the Barbra Colman controller. On 21EX #2 which is a two year old machine I have had 4 leaks in the last 8 months, and now one friday in the newest one 21 EX #3. IMO the fittings are not as good as the old ones or may they were overtightend. Who knows??? But enough of my whining. I thought that I would let those of you who have not heard to tyrap the cable that feeds the ion chamber signals, and which now sits on top or wrap with other cables near the pulse tank coiled up, it should be removed from that location and tyrap it to the back of the stand support. Why because any water leaking in the stand seems to find ts way right the that cable set and soak the connector, this is bad for those small ion signals going to the console. the local Varian reps are checking and moving these as they have cause many problems. Have a good week. ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 03 06:00:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Ej1c-0008Ci-00; Mon, 03 Jun 2002 06:00:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0E1ED1105E4; Mon, 3 Jun 2002 06:57:18 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA23069 for linac-eng-list; Sun, 2 Jun 2002 22:38:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA23065 for ; Sun, 2 Jun 2002 22:38:34 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id NAA28498 for ; Mon, 3 Jun 2002 13:07:57 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id NAA28095 for ; Mon, 3 Jun 2002 13:07:26 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id NAA21359 for ; Mon, 3 Jun 2002 13:07:25 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma021211; Mon, 3 Jun 02 13:07:14 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id NAA17800 for ; Mon, 3 Jun 2002 13:07:14 +0930 (CST) Message-Id: <200206030337.NAA17800@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 3 Jun 02 13:07:13 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 3 Jun 02 13:06:55 +0930 From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Mon, 3 Jun 2002 13:06:44 +0930 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Test and question X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Mon, 3 Jun 2002 13:06:44 +0930 Content-type: text/plain; charset=US-ASCII Subject: Test and question Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I posted two messages last week but they did not appear on the list. I also have a feeling that not all postings from the list reach me. Though there is no spam either. Is there anybody else who experience the same problems? Andrew Frolov Manager, Radiation Engineering Medical Physics Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 03 11:29:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Eo9r-0005Si-00; Mon, 03 Jun 2002 11:29:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AA85011130A; Mon, 3 Jun 2002 12:26:08 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA28683 for linac-eng-list; Mon, 3 Jun 2002 04:08:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA28676 for ; Mon, 3 Jun 2002 04:08:02 -0500 (CDT) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Mon, 3 Jun 2002 11:07:58 +0200 Message-ID: To: Afrolov@mail.rah.sa.gov.au, linac-eng@plato.aristotle.net Subject: RE: Test and question Date: Mon, 3 Jun 2002 11:07:54 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: Afrolov@mail.rah.sa.gov.au, linac-eng@plato.aristotle.net Subject: RE: Test and question Date: Mon, 3 Jun 2002 11:07:54 +0200 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Last week I posted a mail that did not come through. Hope this one will do better. Keesjan P.S. If you still get spam, brothers, it is definitely not from this list. I'v got none last weeks > -----Original Message----- > From: Andrew Frolov [SMTP:Afrolov@mail.rah.sa.gov.au] > Sent: Monday, June 03, 2002 5:37 AM > To: linac-eng@plato.aristotle.net > Subject: Test and question > > I posted two messages last week but they did not appear on the list. I > also > have a feeling that not all postings from the list reach me. Though there > is no > spam either. > > Is there anybody else who experience the same problems? > > > > > Andrew Frolov > Manager, Radiation Engineering > Medical Physics > Royal Adelaide Hospital > > Tel: 61 8 8222 5674 > Fax: 61 8 8222 5937 > > email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 31 09:06:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DgUf-0002Kb-00; Fri, 31 May 2002 09:06:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 33FA41112FA; Fri, 31 May 2002 10:03:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA15394 for linac-eng-list; Fri, 31 May 2002 01:46:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r07.mx.aol.com (imo-r07.mx.aol.com [152.163.225.103]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA15390 for ; Fri, 31 May 2002 01:46:51 -0500 (CDT) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-r07.mx.aol.com (mail_out_v32.5.) id y.19e.30b22f9 (3960) for ; Fri, 31 May 2002 02:46:18 -0400 (EDT) Message-ID: <19e.30b22f9.2a287639@aol.com> Date: Fri, 31 May 2002 02:46:17 EDT Subject: 600c base frame To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_19e.30b22f9.2a287639_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Fri, 31 May 2002 02:46:17 EDT Subject: 600c base frame To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_19e.30b22f9.2a287639_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_19e.30b22f9.2a287639_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all, Can anyone tell me if the base frame for a 600c (Varian) is the same as the one used with a 6/100? The couch is an ETR. Thanks in advance Mike Liddicote Accelerator Associates --part1_19e.30b22f9.2a287639_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all,
    Can anyone tell me if the base frame for a 600c (Varian) is the same as the one used with a 6/100?  The couch is an ETR.  Thanks in advance
    Mike Liddicote
    Accelerator Associates     --part1_19e.30b22f9.2a287639_boundary-- 1, filed,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri May 31 09:06:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17DgUf-0002Kb-00; Fri, 31 May 2002 09:06:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 33FA41112FA; Fri, 31 May 2002 10:03:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA15394 for linac-eng-list; Fri, 31 May 2002 01:46:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r07.mx.aol.com (imo-r07.mx.aol.com [152.163.225.103]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA15390 for ; Fri, 31 May 2002 01:46:51 -0500 (CDT) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-r07.mx.aol.com (mail_out_v32.5.) id y.19e.30b22f9 (3960) for ; Fri, 31 May 2002 02:46:18 -0400 (EDT) Message-ID: <19e.30b22f9.2a287639@aol.com> Date: Fri, 31 May 2002 02:46:17 EDT Subject: 600c base frame To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_19e.30b22f9.2a287639_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Fri, 31 May 2002 02:46:17 EDT Subject: 600c base frame To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_19e.30b22f9.2a287639_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_19e.30b22f9.2a287639_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all, Can anyone tell me if the base frame for a 600c (Varian) is the same as the one used with a 6/100? The couch is an ETR. Thanks in advance Mike Liddicote Accelerator Associates --part1_19e.30b22f9.2a287639_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all,
    Can anyone tell me if the base frame for a 600c (Varian) is the same as the one used with a 6/100?  The couch is an ETR.  Thanks in advance
    Mike Liddicote
    Accelerator Associates     --part1_19e.30b22f9.2a287639_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 03 16:41:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Et1T-0000PR-00; Mon, 03 Jun 2002 16:41:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 223451105E5; Mon, 3 Jun 2002 17:37:46 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA03640 for linac-eng-list; Mon, 3 Jun 2002 09:14:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from viola.lio.se (viola.lio.se [158.126.248.15]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA03636 for ; Mon, 3 Jun 2002 09:14:39 -0500 (CDT) Received: from LIO_S_TFS1 (tfs1.lio.se [158.126.88.66]) by viola.lio.se (8.12.2/8.12.2) with SMTP id g53EETOk023337; Mon, 3 Jun 2002 16:14:30 +0200 (METDST) Message-Id: From: Viking Eilert Date: Mon, 3 Jun 2002 16:19:53 +0200 To: afrolov@mail.rah.sa.gov.au Cc: linac-eng@plato.aristotle.net Subject: SV: Test and question MIME-version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Mailer: TFS Secure Messaging /320000000/450000208/450800090/450300029/ X-Mailer: Version 4.7 Build 103 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA03637 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Viking Eilert Date: Mon, 3 Jun 2002 16:19:53 +0200 To: afrolov@mail.rah.sa.gov.au Cc: linac-eng@plato.aristotle.net Subject: SV: Test and question Content-Type: text/plain; charset=ISO-8859-1 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA03637 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have tried twice but did not succed to post anything to the list a couple of weeks ago. Eilert > -----Ursprungligt meddelande----- > Från: owner-linac-eng@plato.aristotle.net > [SMTP:owner-linac-eng@plato.aristotle.net] > Skickat: den 3 juni 2002 06:27 > Till: linac-eng@plato.aristotle.net > Ämne: Test and question > > I posted two messages last week but they did not appear on the list. I > also have a feeling that not all postings from the list reach me. Though > there is no spam either. > > Is there anybody else who experience the same problems? > > > > > Andrew Frolov > Manager, Radiation Engineering > Medical Physics > Royal Adelaide Hospital > > Tel: 61 8 8222 5674 > Fax: 61 8 8222 5937 > > email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 03 23:09:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Ez5B-0001ne-00; Mon, 03 Jun 2002 23:09:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CDA91111316; Tue, 4 Jun 2002 00:05:57 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA17292 for linac-eng-list; Mon, 3 Jun 2002 15:40:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA17287 for ; Mon, 3 Jun 2002 15:40:40 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id <2ZZY4Q72>; Mon, 3 Jun 2002 16:40:05 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFADE@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Viking Eilert'" , afrolov@mail.rah.sa.gov.au Cc: linac-eng@plato.aristotle.net Subject: RE: Test and question Date: Mon, 3 Jun 2002 16:36:57 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA17289 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Viking Eilert'" , afrolov@mail.rah.sa.gov.au Cc: linac-eng@plato.aristotle.net Subject: RE: Test and question Date: Mon, 3 Jun 2002 16:36:57 -0400 Content-Type: text/plain; charset="iso-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA17289 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk no problems sending or receiving posts, but have probably done replies only lately. firewall problems? > -----Original Message----- > From: Viking Eilert [SMTP:Eilert.Viking@lio.se] > Sent: Monday, June 03, 2002 10:20 AM > To: afrolov@mail.rah.sa.gov.au > Cc: linac-eng@plato.aristotle.net > Subject: SV: Test and question > > I have tried twice but did not succed to post anything to the list a couple > of weeks ago. > > Eilert > > > -----Ursprungligt meddelande----- > > Från: owner-linac-eng@plato.aristotle.net > > [SMTP:owner-linac-eng@plato.aristotle.net] > > Skickat: den 3 juni 2002 06:27 > > Till: linac-eng@plato.aristotle.net > > Ämne: Test and question > > > > I posted two messages last week but they did not appear on the list. I > > also have a feeling that not all postings from the list reach me. Though > > there is no spam either. > > > > Is there anybody else who experience the same problems? > > > > > > > > > > Andrew Frolov > > Manager, Radiation Engineering > > Medical Physics > > Royal Adelaide Hospital > > > > Tel: 61 8 8222 5674 > > Fax: 61 8 8222 5937 > > > > email afrolov@mail.rah.sa.gov.au 1, answered,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 04 00:55:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17F0jl-0001uA-00; Tue, 04 Jun 2002 00:55:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 13869111316; Tue, 4 Jun 2002 01:51:56 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA10479 for linac-eng-list; Mon, 3 Jun 2002 17:34:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tisch.mail.mindspring.net (tisch.mail.mindspring.net [207.69.200.157]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA10475 for ; Mon, 3 Jun 2002 17:34:01 -0500 (CDT) Received: from user-1120qrv.dsl.mindspring.com ([66.32.107.127] helo=mindspring.com) by tisch.mail.mindspring.net with smtp (Exim 3.33 #1) id 17F0Oi-0004d2-00 for linac-eng@plato.aristotle.net; Mon, 03 Jun 2002 18:33:56 -0400 Message-ID: <412002613233825421@mindspring.com> X-EM-Version: 5, 0, 0, 0 X-EM-Registration: #3003520714B31D032830 Reply-To: plynch@mindspring.com X-Mailer: EarthLink MailBox 5.0.7.9 (Windows) From: "Patrick Lynch" To: "linac eng" Subject: Positioner for Prostate Seeding Date: Mon, 3 Jun 2002 19:38:25 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-EM-Version: 5, 0, 0, 0 X-EM-Registration: #3003520714B31D032830 Reply-To: plynch@mindspring.com From: "Patrick Lynch" To: "linac eng" Subject: Positioner for Prostate Seeding Date: Mon, 3 Jun 2002 19:38:25 -0400 Content-type: text/plain; charset=US-ASCII Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I am looking for . . . a device which attaches to an OR table and provides accurate and stable positioning during prostate seeding. It seems the one we have is made by Tangen Engineering, and the old guy (from Conyers, GA) has died and no one else makes anything quite like this (or so my docs tell me.) It looks like the base was an IV pole on wheels, but from there it has horizontal and vertical position adjustments, and knobs which lock it in place. On the top, it has a holder to attach to a probe. If I sound like I don't know what I'm talking about, I really don't. I have only seem a cannabalized one, but will be going into surgery tomorrow morning to see this devffice in use. I will have some digital pictures them. If anyone knows what the heck I'm talking about, email me and I'll be glad to send you pix. I am willing to buy working, complete, or partial, or pieces. It'll be easier than having a machine shop create me one. Thanks, Patrick Lynch Director, BioMedical Engineering, Northside Hospital Atlanta, GA 404-851-6170 work patrick.lynch@northside.com email at work. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 04:06:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FQCI-0003nW-00; Wed, 05 Jun 2002 04:06:51 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8389D1112F7; Wed, 5 Jun 2002 05:02:54 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id UAA26136 for linac-eng-list; Tue, 4 Jun 2002 20:41:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA26132 for ; Tue, 4 Jun 2002 20:41:19 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id LAA25934 for ; Wed, 5 Jun 2002 11:10:43 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id LAA25919 for ; Wed, 5 Jun 2002 11:10:42 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id LAA01684 for ; Wed, 5 Jun 2002 11:10:42 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma000280; Wed, 5 Jun 02 11:07:06 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id LAA26431 for ; Wed, 5 Jun 2002 11:07:06 +0930 (CST) Message-Id: <200206050137.LAA26431@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 5 Jun 02 11:07:06 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 5 Jun 02 11:06:53 +0930 From: "David Horsman" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Wed, 5 Jun 2002 11:06:49 +1030 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Varian cooling system upgrade X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "David Horsman" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net Date: Wed, 5 Jun 2002 11:06:49 +1030 Content-type: text/plain; charset=US-ASCII Subject: Varian cooling system upgrade Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello all, I am after feedback on the water additives that Varian supplies with the upgrade to the cooling system. Specifically, can anyone describe any improvements or degradation in their cooling system that they have noticed after adding the chemicals. Does the water appear to stay cleaner longer after adding the chemicals. Do hoses degrade quicker? etc Has anyone installed the new high flow rate filter without adding the chemicals? Have they noticed any ill effects of not using the chemicals? Thanks in advance, David Horsman Senior Technical Officer Medical Physics Royal Adelaide Hospital North Terrace, Adelaide, South Australia Australia Ph +61 8 8222 4188 Fx +61 8 8222 5937 dhorsman@mail.rah.sa.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 12:14:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FXoH-00068w-00; Wed, 05 Jun 2002 12:14:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 18EC51112F9; Wed, 5 Jun 2002 13:10:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA05275 for linac-eng-list; Wed, 5 Jun 2002 04:51:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f52.law8.hotmail.com [216.33.241.52]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA05271 for ; Wed, 5 Jun 2002 04:51:51 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 5 Jun 2002 02:51:20 -0700 Received: from 207.67.109.70 by lw8fd.law8.hotmail.msn.com with HTTP; Wed, 05 Jun 2002 09:51:19 GMT X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: Dhorsman@mail.rah.sa.gov.au, linac-eng@plato.aristotle.net Subject: Re: Varian cooling system upgrade Date: Wed, 05 Jun 2002 04:51:19 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 05 Jun 2002 09:51:20.0644 (UTC) FILETIME=[8B886040:01C20C76] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: Dhorsman@mail.rah.sa.gov.au, linac-eng@plato.aristotle.net Subject: Re: Varian cooling system upgrade Date: Wed, 05 Jun 2002 04:51:19 -0500 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 05 Jun 2002 09:51:20.0644 (UTC) FILETIME=[8B886040:01C20C76] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi David I have been just adding the Nalco 2838 which is just the biocide. This keeps the brown whatever it is from forming in the system. I change the water every 6 months and add new biocide. I have cut open my target hose after 2 years and it still looks looks like new. Good Luck. >From: "David Horsman" >To: linac-eng@plato.aristotle.net >Subject: Varian cooling system upgrade >Date: Wed, 5 Jun 2002 11:06:49 +1030 > >Hello all, > >I am after feedback on the water additives that Varian supplies with >the upgrade to the cooling system. Specifically, can anyone >describe any improvements or degradation in their cooling system >that they have noticed after adding the chemicals. Does the water >appear to stay cleaner longer after adding the chemicals. Do hoses >degrade quicker? etc > >Has anyone installed the new high flow rate filter without adding the >chemicals? Have they noticed any ill effects of not using the >chemicals? > >Thanks in advance, > > >David Horsman >Senior Technical Officer >Medical Physics >Royal Adelaide Hospital >North Terrace, Adelaide, >South Australia >Australia >Ph +61 8 8222 4188 >Fx +61 8 8222 5937 > >dhorsman@mail.rah.sa.gov.au _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 14:29:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FZuW-0007qQ-00; Wed, 05 Jun 2002 14:29:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A90611112F9; Wed, 5 Jun 2002 15:25:07 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA07622 for linac-eng-list; Wed, 5 Jun 2002 07:11:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA07618 for ; Wed, 5 Jun 2002 07:11:26 -0500 (CDT) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Wed, 5 Jun 2002 08:13:00 -0400 Message-ID: <1082075133C0D511AAC8000255F0072924C4E2@beatrice.trcc.org> From: "Hughes, William H." To: "'Linac-eng@plato.aristotle.net'" Subject: Seimans Equipment and service Date: Wed, 5 Jun 2002 08:12:59 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'Linac-eng@plato.aristotle.net'" Subject: Seimans Equipment and service Date: Wed, 5 Jun 2002 08:12:59 -0400 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Gentelmen, My facility is currently looking into the possibility of purchasing a new Seimans linac. Could any of you please give me your thoughts on their equipment and service. Thank you in advance. Bill Hughes Regional Cancer Center Erie, Pa. Ph: 814-838-0408 E-mail: Whughes@trcc.org 1, filed,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 14:29:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FZuW-0007qQ-00; Wed, 05 Jun 2002 14:29:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A90611112F9; Wed, 5 Jun 2002 15:25:07 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA07622 for linac-eng-list; Wed, 5 Jun 2002 07:11:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA07618 for ; Wed, 5 Jun 2002 07:11:26 -0500 (CDT) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Wed, 5 Jun 2002 08:13:00 -0400 Message-ID: <1082075133C0D511AAC8000255F0072924C4E2@beatrice.trcc.org> From: "Hughes, William H." To: "'Linac-eng@plato.aristotle.net'" Subject: Seimans Equipment and service Date: Wed, 5 Jun 2002 08:12:59 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'Linac-eng@plato.aristotle.net'" Subject: Seimans Equipment and service Date: Wed, 5 Jun 2002 08:12:59 -0400 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Gentelmen, My facility is currently looking into the possibility of purchasing a new Seimans linac. Could any of you please give me your thoughts on their equipment and service. Thank you in advance. Bill Hughes Regional Cancer Center Erie, Pa. Ph: 814-838-0408 E-mail: Whughes@trcc.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 16:00:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FbKj-0000hx-00; Wed, 05 Jun 2002 16:00:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A8709111312; Wed, 5 Jun 2002 16:56:16 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA09641 for linac-eng-list; Wed, 5 Jun 2002 08:40:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dns1.e.benefis.org ([12.46.94.198]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA09634 for ; Wed, 5 Jun 2002 08:40:03 -0500 (CDT) Received: from migauthsvr.dmz.benefis.org (migauthsvr.dmz.benefis.org [192.168.100.40]) by dns1.e.benefis.org (8.10.1/8.10.1) with SMTP id g55De2q10711 for ; Wed, 5 Jun 2002 07:40:02 -0600 Received: FROM WBIOPC01 BY migauthsvr.dmz.benefis.org ; Wed Jun 05 07:31:18 2002 -0600 Message-ID: <001d01c20c93$f4eb91c0$90030180@E.BENEFIS.ORG> From: "Wayne Blaine" To: "Linac List" Subject: Varian water treatment chemicals Date: Wed, 5 Jun 2002 07:21:52 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wayne Blaine" To: "Linac List" Subject: Varian water treatment chemicals Date: Wed, 5 Jun 2002 07:21:52 -0600 Content-Type: text/plain; charset="Windows-1252" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk If you decide to order chemicals from Varian for water treatment, you will find that they have a new pn which combines the Nalco 2838 (50ml bottle) and Nalco CW-4751 (250ml bottle). Still in separate bottles. The Varian cost? $500.00. PN is 100012222-01. After a little effort to contact the local Montana sales rep my facility now has an account with Nalco. This is the pricing I got: Nalco 2838.11 $8.92/pound delivered. Smallest quantity 5 gallons 44pounds. Total $392.48. Nalco CW-4751.11 $6.92/pound delivered. Smallest quantity 5 gallons 40 pounds. Total $276.80. The quick math I did on the cost per bottle gave me $1.00/50ml bottle for 2838 and $3.50/bottle CW-4751. I will have enough chemical to support two linacs for 20 years. Is anyone going to purchase these chemicals from Varian at the rate of $500/application every six months? I called Varian service on the cost and it was confirmed that the quantity is still 50ml and 250ml bottles and the cost is $500.00. Has anyone else gotten the same results from Varian? Found smaller quantities or different pricing from Nalco? You can also buy the filter separately from Varian. At $7.50 per filter the price seems like a bargain compared to the chemicals. Wayne Blaine Certified Radiology Equipment Specialist Benefis Healthcare Great Falls, Mt. blaiwayw@benefis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 16:07:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FbRu-0000py-00; Wed, 05 Jun 2002 16:07:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7160E111316; Wed, 5 Jun 2002 17:03:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA09799 for linac-eng-list; Wed, 5 Jun 2002 08:48:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from radonc.unc.edu (quake.radonc.unc.edu [152.19.34.35]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA09795 for ; Wed, 5 Jun 2002 08:48:25 -0500 (CDT) Received: from [152.19.34.206] (mac-deschesn.radonc.unc.edu [152.19.34.206]) by radonc.unc.edu (8.9.3/8.9.1) with ESMTP id JAA11763 for ; Wed, 5 Jun 2002 09:48:21 -0400 (EDT) X-Sender: deschesn@popserv.radonc.unc.edu Message-Id: In-Reply-To: <1082075133C0D511AAC8000255F0072924C4E2@beatrice.trcc.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Wed, 5 Jun 2002 09:39:53 -0400 To: Linac-eng@plato.aristotle.net From: Kathy Deschesne Subject: Re: Seimans Equipment and service Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: deschesn@popserv.radonc.unc.edu In-Reply-To: <1082075133C0D511AAC8000255F0072924C4E2@beatrice.trcc.org> Content-Type: text/plain; charset="us-ascii" Date: Wed, 5 Jun 2002 09:39:53 -0400 To: Linac-eng@plato.aristotle.net From: Kathy Deschesne Subject: Re: Seimans Equipment and service Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk >Gentelmen, My facility is currently looking into the possibility of >purchasing a new Seimans linac. Could any of you please give me your >thoughts on their equipment and service. > >Thank you in advance. > >Bill Hughes >Regional Cancer Center >Erie, Pa. >Ph: 814-838-0408 >E-mail: Whughes@trcc.org I'm not a gentleman, but here's my experience, for what it's worth. ;^) We've had Siemens therapy equipment for many, many years, and currently have a MeV77 (installed ~1981; modified in '92 and used as a dedicated stereotactic radiosurgery machine), an MD-2 backfit w/MLC and an MXE-2 (both installed 5/90) and a Primus w/MLC (installed 3/00). We are anticipating another Primus next fiscal year. We've had excellent uptime over the course of my 11 years of employment here, thanks in large part to our dedicated in-house engineer of 5 years and the conscientious service people in the Siemens organization. Oh yeah, and their products are put together pretty well, too. I am not familiar with FSE's in your area, but we have been quite fortunate and I wouldn't hesitate a minute to recommend them or the Siemens product. Standard disclaimers apply...my opinions are MINE only and do not represent those of UNC Hospitals Radiation Oncology, blah blah blah. Best of luck in your decision-making! Kathy _________________ Katharin M. Deschesne, M.S. Senior Clinical Medical Physicist University of North Carolina Hospitals Department of Radiation Oncology 101 Manning Drive CB #7512 Chapel Hill, NC 27514-7512 phone (919) 966-1101; fax (919) 966-7681 >Gentelmen, My facility is currently looking into the possibility of >purchasing a new Seimans linac. Could any of you please give me your >thoughts on their equipment and service. > >Thank you in advance. > >Bill Hughes >Regional Cancer Center >Erie, Pa. >Ph: 814-838-0408 >E-mail: Whughes@trcc.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 16:38:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FbvL-0001Id-00; Wed, 05 Jun 2002 16:38:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1A9C9111312; Wed, 5 Jun 2002 17:34:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA10773 for linac-eng-list; Wed, 5 Jun 2002 09:18:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from carme.scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA10769 for ; Wed, 5 Jun 2002 09:18:17 -0500 (CDT) Received: from neried. (neried.scf.sk.ca [172.24.48.3]) by carme.scf.sk.ca (Rockliffe SMTPRA 4.5.4) with SMTP id for ; Wed, 5 Jun 2002 08:20:50 -0600 Received: (from spc160 [172.24.56.160]) by neried. (NAVGW 2.5.1.6) with SMTP id M2002060508183912166 ; Wed, 05 Jun 2002 08:18:39 -0600 From: "Brian Martin" To: "'Wayne Blaine'" , "Linac Engineer group (E-mail)" Subject: RE: Varian water treatment chemicals Date: Wed, 5 Jun 2002 08:18:42 -0600 Message-ID: <000c01c20c9b$e5b454a0$a03818ac@scadomain.local> MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 In-Reply-To: <001d01c20c93$f4eb91c0$90030180@E.BENEFIS.ORG> Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Brian Martin" To: "'Wayne Blaine'" , "Linac Engineer group (E-mail)" Subject: RE: Varian water treatment chemicals Date: Wed, 5 Jun 2002 08:18:42 -0600 Content-Type: text/plain; charset="Windows-1252" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 In-Reply-To: <001d01c20c93$f4eb91c0$90030180@E.BENEFIS.ORG> Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Yes Wayne, we have done the same. We calculated similar costs and decided to second source these chemicals. Varian is charging unbelievable prices for a small amount of chemical. -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Wayne Blaine Sent: Wednesday, June 05, 2002 7:22 AM To: Linac List Subject: Varian water treatment chemicals If you decide to order chemicals from Varian for water treatment, you will find that they have a new pn which combines the Nalco 2838 (50ml bottle) and Nalco CW-4751 (250ml bottle). Still in separate bottles. The Varian cost? $500.00. PN is 100012222-01. After a little effort to contact the local Montana sales rep my facility now has an account with Nalco. This is the pricing I got: Nalco 2838.11 $8.92/pound delivered. Smallest quantity 5 gallons 44pounds. Total $392.48. Nalco CW-4751.11 $6.92/pound delivered. Smallest quantity 5 gallons 40 pounds. Total $276.80. The quick math I did on the cost per bottle gave me $1.00/50ml bottle for 2838 and $3.50/bottle CW-4751. I will have enough chemical to support two linacs for 20 years. Is anyone going to purchase these chemicals from Varian at the rate of $500/application every six months? I called Varian service on the cost and it was confirmed that the quantity is still 50ml and 250ml bottles and the cost is $500.00. Has anyone else gotten the same results from Varian? Found smaller quantities or different pricing from Nalco? You can also buy the filter separately from Varian. At $7.50 per filter the price seems like a bargain compared to the chemicals. Wayne Blaine Certified Radiology Equipment Specialist Benefis Healthcare Great Falls, Mt. blaiwayw@benefis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 17:46:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Fczw-0002XK-00; Wed, 05 Jun 2002 17:46:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DB47E111313; Wed, 5 Jun 2002 18:42:54 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA12979 for linac-eng-list; Wed, 5 Jun 2002 10:27:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ftwvir01.ftw.medcity.net (mail.ftw.medcity.net [199.91.36.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA12974 for ; Wed, 5 Jun 2002 10:27:56 -0500 (CDT) Received: from 170.150.192.135 by ftwvir01.ftw.medcity.net (InterScan E-Mail VirusWall NT); Wed, 05 Jun 2002 10:29:23 -0500 Received: by ftwexcon02.ftw.medcity.net with Internet Mail Service (5.5.2653.19) id ; Wed, 5 Jun 2002 10:14:59 -0500 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F86649@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'Wayne Blaine'" , "Linac list (E-mail)" Subject: RE: Varian water treatment chemicals Date: Wed, 5 Jun 2002 10:26:21 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="windows-1252" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'Wayne Blaine'" , "Linac list (E-mail)" Subject: RE: Varian water treatment chemicals Date: Wed, 5 Jun 2002 10:26:21 -0500 Content-Type: text/plain; charset="windows-1252" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk It looks like Varian has got us over a bottle, I mean barrel on this one. $500 bucks a pop for these chemicals is outrageous! I'm experimenting with a once a year water change/chemical treatment. It's been about a year now on our 21Ex and at this point the water in the reservoir looks fine. I'm not able to store large quantities of the chemicals. Would like to see some of the second source supplies get hold of this stuff and maybe sell it in half gallon jugs for a fair price of course. Mike T. -----Original Message----- From: Wayne Blaine [mailto:blaiwayw@benefis.org] Sent: Wednesday, June 05, 2002 8:22 AM To: Linac List Subject: Varian water treatment chemicals If you decide to order chemicals from Varian for water treatment, you will find that they have a new pn which combines the Nalco 2838 (50ml bottle) and Nalco CW-4751 (250ml bottle). Still in separate bottles. The Varian cost? $500.00. PN is 100012222-01. After a little effort to contact the local Montana sales rep my facility now has an account with Nalco. This is the pricing I got: Nalco 2838.11 $8.92/pound delivered. Smallest quantity 5 gallons 44pounds. Total $392.48. Nalco CW-4751.11 $6.92/pound delivered. Smallest quantity 5 gallons 40 pounds. Total $276.80. The quick math I did on the cost per bottle gave me $1.00/50ml bottle for 2838 and $3.50/bottle CW-4751. I will have enough chemical to support two linacs for 20 years. Is anyone going to purchase these chemicals from Varian at the rate of $500/application every six months? I called Varian service on the cost and it was confirmed that the quantity is still 50ml and 250ml bottles and the cost is $500.00. Has anyone else gotten the same results from Varian? Found smaller quantities or different pricing from Nalco? You can also buy the filter separately from Varian. At $7.50 per filter the price seems like a bargain compared to the chemicals. Wayne Blaine Certified Radiology Equipment Specialist Benefis Healthcare Great Falls, Mt. blaiwayw@benefis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 17:46:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Fczz-0002XN-00; Wed, 05 Jun 2002 17:46:59 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D18FA111313; Wed, 5 Jun 2002 18:42:57 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA12829 for linac-eng-list; Wed, 5 Jun 2002 10:23:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pollux.it.luc.edu (pollux.it.luc.edu [147.126.59.91]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA12825 for ; Wed, 5 Jun 2002 10:23:08 -0500 (CDT) Received: from wpo.it.luc.edu (wpo.it.luc.edu [147.126.59.93]) by pollux.it.luc.edu (Postfix) with ESMTP id 086142A31E for ; Wed, 5 Jun 2002 10:23:07 -0500 (CDT) Received: from GWIA3-MTA by wpo.it.luc.edu with Novell_GroupWise; Wed, 05 Jun 2002 10:23:07 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Beta Date: Wed, 05 Jun 2002 10:22:55 -0500 From: "Richard Gerler" To: , Subject: Re: Varian water treatment chemicals Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_4D1082CB.B5D55AFF" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 05 Jun 2002 10:22:55 -0500 From: "Richard Gerler" To: , Subject: Re: Varian water treatment chemicals Content-Type: multipart/alternative; boundary="=_4D1082CB.B5D55AFF" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_4D1082CB.B5D55AFF Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit I have decided not to use any chemicals. I feel that if I change the system water out at six month intervals that there is no reason to add chemicals to it. Any chemicals have got to degrade the integrity of the water system somewhat. Richard Gerler Loyola University Medical Center Imaging Engineering 2160 S. First Ave Maywood, IL 60153 PH:(708) 216-9148 PG:(708) 216-8777 #17094 --=_4D1082CB.B5D55AFF Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Content-Description: HTML
    I have decided not to use any chemicals. I feel that if I change the system water out at six month intervals that there is no reason to add chemicals to it. Any chemicals have got to degrade the integrity of the water system somewhat.
     
    Richard Gerler
    Loyola University Medical Center
    Imaging Engineering
    2160 S. First Ave
    Maywood, IL  60153
    PH:(708) 216-9148
    PG:(708) 216-8777 #17094
    --=_4D1082CB.B5D55AFF-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 18:55:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Fe4c-0002tW-00; Wed, 05 Jun 2002 18:55:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B311C1105E5; Wed, 5 Jun 2002 19:51:47 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA14918 for linac-eng-list; Wed, 5 Jun 2002 11:30:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq06.netvigator.com (imsmq06.netvigator.com [208.167.231.42]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA14914 for ; Wed, 5 Jun 2002 11:30:41 -0500 (CDT) Received: (qmail 27174 invoked from network); 5 Jun 2002 16:30:26 -0000 Received: from pcd420102.netvigator.com (HELO yeung) (203.218.210.102) by imsmq06.netvigator.com with SMTP; 5 Jun 2002 16:30:26 -0000 Message-ID: <001201c20cad$cfeebb80$fa63fea9@yeung> From: "k yeung" To: Subject: Re: XimaVision error message Date: Thu, 6 Jun 2002 00:26:57 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01C20CF0.DDBE0F20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: XimaVision error message Date: Thu, 6 Jun 2002 00:26:57 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01C20CF0.DDBE0F20" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_000F_01C20CF0.DDBE0F20 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian XimaVision V6.1 Has everyone come across the following error message shown on XimaVision = display:- "Frame 41 Timeout (IM_ERR_TIMEOUT) No Camera signal An application error has occurred and an application error log is = being generated" When the error message appeared, only the high resolution B/W monitor = display image but not the XimaVision. The camera should be working = properly. The "fault" was cleared with power-off of XimaVision. Any idea about the causes of the error? Best regards, Kim Yeung ------=_NextPart_000_000F_01C20CF0.DDBE0F20 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
              Varian=20 XimaVision V6.1
     
    Has everyone come across the following error message = shown on=20 XimaVision display:-
         "Frame 41
         Timeout = (IM_ERR_TIMEOUT)
          No Camera = signal
          An application error = has=20 occurred and an application error log is being generated"
     
    When the error message = appeared, only  the high=20 resolution B/W monitor display image but not the XimaVision. =  The=20 camera should be working properly. The "fault" was cleared  with = power-off=20 of XimaVision.
     
    Any idea about the causes of the error?
     
    Best regards,
     
    Kim Yeung
    ------=_NextPart_000_000F_01C20CF0.DDBE0F20-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 05 20:22:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FfQ1-00035p-00; Wed, 05 Jun 2002 20:22:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 50D11111313; Wed, 5 Jun 2002 21:17:58 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA22753 for linac-eng-list; Wed, 5 Jun 2002 12:54:36 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA22733 for ; Wed, 5 Jun 2002 12:54:34 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Wed, 5 Jun 2002 14:53:58 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Wed, 05 Jun 2002 14:52:16 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Wed, 05 Jun 2002 14:52:07 -0300 From: "Marvin Rathburn" To: Subject: clutch drive on varian 2100 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA22734 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 05 Jun 2002 14:52:07 -0300 From: "Marvin Rathburn" To: Subject: clutch drive on varian 2100 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA22734 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good day to all I have a question regarding the clutch on the gantry drive for the 2100c/d our serial # 1161. When the auto enter is pressed on the hand pendant the gantry will rotates to the appropriate setting but when it gets close to the setting it does not slow down and there for the gantry bounces back and forth when it stops. When it does this it stops too far off the setting and the therapist has to push the auto enter button again for it to proceed to the right setting. ( it is generally off 0.3 more or less ) I installed a rebuild clutch one that I have put new clutch pads in. My question being is there a procedure for setting theses clutches up when they are installed? I cannot find any data on how much torque to use when setting the pressure on the clutch springs and/ or anything on a procedure to test them when they are on the machine. Best Regards Marvin Rathburn Saint John Regional Hospital Saint John N.B. Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 00:24:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FjCs-0003OK-00; Thu, 06 Jun 2002 00:24:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DC023111313; Thu, 6 Jun 2002 01:20:37 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA24579 for linac-eng-list; Wed, 5 Jun 2002 16:53:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA24539 for ; Wed, 5 Jun 2002 16:53:42 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA21188 for ; Thu, 6 Jun 2002 09:34:53 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Thu, 6 Jun 2002 09:56:31 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Thu, 06 Jun 2002 09:52:45 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 06 Jun 2002 09:52:32 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian water treatment chemicals Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA24576 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 06 Jun 2002 09:52:32 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian water treatment chemicals Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA24576 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day Wayne, Find some friends in your county and give them some of your spare chemistry. It has a 2 year shelf life and it may be expensive to dump 19Gal. If there is sufficient interest in Australia and NZ I will arrange a similar system. (There is however a hazardous goods import clearance cost). Dave. >>> "Wayne Blaine" 6/06/02 01:21:52 >>> If you decide to order chemicals from Varian for water treatment, you will find that they have a new pn which combines the Nalco 2838 (50ml bottle) and Nalco CW-4751 (250ml bottle). Still in separate bottles. The Varian cost? $500.00. PN is 100012222-01. After a little effort to contact the local Montana sales rep my facility now has an account with Nalco. This is the pricing I got: Nalco 2838.11 $8.92/pound delivered. Smallest quantity 5 gallons 44pounds. Total $392.48. Nalco CW-4751.11 $6.92/pound delivered. Smallest quantity 5 gallons 40 pounds. Total $276.80. The quick math I did on the cost per bottle gave me $1.00/50ml bottle for 2838 and $3.50/bottle CW-4751. I will have enough chemical to support two linacs for 20 years. Is anyone going to purchase these chemicals from Varian at the rate of $500/application every six months? I called Varian service on the cost and it was confirmed that the quantity is still 50ml and 250ml bottles and the cost is $500.00. Has anyone else gotten the same results from Varian? Found smaller quantities or different pricing from Nalco? You can also buy the filter separately from Varian. At $7.50 per filter the price seems like a bargain compared to the chemicals. Wayne Blaine Certified Radiology Equipment Specialist Benefis Healthcare Great Falls, Mt. blaiwayw@benefis.org ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). 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Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 00:24:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17FjD6-0003ON-00; Thu, 06 Jun 2002 00:24:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F141111313; Thu, 6 Jun 2002 01:20:51 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA25801 for linac-eng-list; Wed, 5 Jun 2002 16:59:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA25701 for ; Wed, 5 Jun 2002 16:59:43 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA21597 for ; Thu, 6 Jun 2002 09:40:59 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Thu, 6 Jun 2002 10:02:37 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Thu, 06 Jun 2002 09:58:52 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 06 Jun 2002 09:58:44 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian water treatment chemicals Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA25725 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 06 Jun 2002 09:58:44 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian water treatment chemicals Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA25725 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day Richard, Take care on that one. The dreaded Culligan was only half the problem. It kept the water pure and therefore it would strip the metal out of the metal pipes. By changing the water twice yearly you may well be doing just what the Culligan was doing. Dave. >>> "Richard Gerler" 6/06/02 03:22:55 >>> I have decided not to use any chemicals. I feel that if I change the system water out at six month intervals that there is no reason to add chemicals to it. Any chemicals have got to degrade the integrity of the water system somewhat. Richard Gerler Loyola University Medical Center Imaging Engineering 2160 S. First Ave Maywood, IL 60153 PH:(708) 216-9148 PG:(708) 216-8777 #17094 ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 14:11:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Fw6c-0007ko-00; Thu, 06 Jun 2002 14:11:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B83D1112F5; Thu, 6 Jun 2002 15:06:55 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA22805 for linac-eng-list; Thu, 6 Jun 2002 06:46:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA22801 for ; Thu, 6 Jun 2002 06:46:39 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g56Bk7E00486; Thu, 6 Jun 2002 06:46:07 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g56Bk7800482; Thu, 6 Jun 2002 06:46:07 -0500 (CDT) Received: through eSafe SMTP Relay 1021898053; Thu Jun 06 06:46:07 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 6 Jun 2002 06:46:07 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5EE7@wmhmail.phci.org> From: "Williams, Rod" To: "'Marvin Rathburn'" , Linac-eng@plato.aristotle.net Subject: RE: clutch drive on varian 2100 Date: Thu, 6 Jun 2002 06:46:01 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C20D4F.BB69B640" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Marvin Rathburn'" , Linac-eng@plato.aristotle.net Subject: RE: clutch drive on varian 2100 Date: Thu, 6 Jun 2002 06:46:01 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C20D4F.BB69B640" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C20D4F.BB69B640 Content-Type: text/plain Hi Marvin I could be that your gantry driver needs to be adjusted, this is on the Catchall panel A1. Maybe the gantry is moving to fast. as far as adjusting the clutch I use my body against the gantry as it is moving at me to see if it slips before it drives me to the ground. Highly technical way to do it. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Marvin Rathburn [SMTP:ratma@reg2.health.nb.ca] > Sent: Wednesday, June 05, 2002 12:52 PM > To: Linac-eng@plato.aristotle.net > Subject: clutch drive on varian 2100 > > Good day to all > I have a question regarding the clutch on the gantry drive > for the 2100c/d our serial # 1161. When the auto enter is pressed on the > hand pendant the gantry will rotates to the appropriate setting but when > it gets close to the setting it does not slow down and there for the > gantry bounces back and forth when it stops. When it does this it stops > too far off the setting and the therapist has to push the auto enter > button again for it to proceed to the right setting. ( it is generally off > 0.3 more or less ) > I installed a rebuild clutch one that I have put new clutch > pads in. My question being is there a procedure for setting theses > clutches up when they are installed? I cannot find any data on how much > torque to use when setting the pressure on the clutch springs and/ or > anything on a procedure to test them when they are on the machine. > Best Regards > Marvin Rathburn > Saint John Regional Hospital > Saint John N.B. Canada ------_=_NextPart_001_01C20D4F.BB69B640 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: clutch drive on varian 2100

    Hi Marvin

    I could be that your g= antry driver needs to be adjusted, this is on the Catchall panel A1. Mayb= e the gantry is moving to fast.

    as far as adjusting th= e clutch I use my body against the gantry as it is moving at me to see if= it slips before it drives me to the ground. Highly technical way to do i= t.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Marvin Rathburn [SMTP:ratma@reg2.health.nb.ca]
      Sent:   Wednesday, June 05, 2002 12:52 PM
      To:     Linac-eng@plato.aristotle.net
      Subject:    &nbs= p;   clutch drive on v= arian 2100

       Good day to all
            &nb= sp;        I have a question regarding= the clutch on the gantry drive for the 2100c/d our serial # 1161. When t= he auto enter is pressed on the hand pendant the gantry will rotates to t= he appropriate setting but when it gets close to the setting it does not = slow down and there for the gantry bounces back and forth when it stops. = When it does this it stops too far off the setting and the therapist has = to push the auto enter button again for it to proceed to the right settin= g. ( it is generally off 0.3 more or less )

            &nbs= p;      I installed a rebuild clutch one that I = have put new clutch pads in. My question being is there a procedure for s= etting theses clutches up when they are installed? I cannot find any data= on how much torque to use when setting the pressure on the clutch spring= s and/ or anything on a procedure to test them when they are on the machi= ne.

            &nbs= p;     Best Regards
            &nb= sp;     Marvin Rathburn
            &nb= sp;     Saint John Regional Hospital
            &nb= sp;      Saint John N.B. Canada

    ------_=_NextPart_001_01C20D4F.BB69B640-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 15:18:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Fx9t-0000J6-00; Thu, 06 Jun 2002 15:18:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8A533111314; Thu, 6 Jun 2002 16:14:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA24392 for linac-eng-list; Thu, 6 Jun 2002 07:59:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA24388 for ; Thu, 6 Jun 2002 07:59:06 -0500 (CDT) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Thu, 6 Jun 2002 14:58:56 +0200 Message-ID: To: linac-eng@plato.aristotle.net Subject: Varian couch sidepanel Date: Thu, 6 Jun 2002 14:58:56 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato.aristotle.net Subject: Varian couch sidepanel Date: Thu, 6 Jun 2002 14:58:56 +0200 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi colleagues, We do have a problem with one of our side-panels (new style, type 3) at a Clinac 2100 couch. After every beam the LED 'panel off' is blinking and they have to reset the panel before they can use it again. Any ideas? TIA Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 18:42:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17G0LE-0002CA-00; Thu, 06 Jun 2002 18:42:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 92F181112F3; Thu, 6 Jun 2002 19:38:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA28939 for linac-eng-list; Thu, 6 Jun 2002 11:10:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from larch.cc.uic.edu (larch.cc.uic.edu [128.248.155.164]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA28935 for ; Thu, 6 Jun 2002 11:10:35 -0500 (CDT) Received: (qmail 16726 invoked from network); 6 Jun 2002 16:10:31 -0000 Received: from uimcc53.hospital.uic.edu (128.248.114.93) by larch.cc.uic.edu with SMTP; 6 Jun 2002 16:10:31 -0000 Received: by uimcc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id <2517K5DN>; Thu, 6 Jun 2002 11:13:27 -0500 Message-ID: From: "Bisevac, Simeon" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato.aristotle.net Subject: RE: Varian couch sidepanel Date: Thu, 6 Jun 2002 11:13:23 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bisevac, Simeon" To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" , linac-eng@plato.aristotle.net Subject: RE: Varian couch sidepanel Date: Thu, 6 Jun 2002 11:13:23 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All; Sounds like one of the thumbwheel switches is not returning to the center position. When the pendant diagnostics are performed each time after "beam on", it checks to see that all thumbwheel switches are in the center position. If not, a 'panel off' error occurrs. You can isolate the bad guy by moving each thumbwheel away from center and then slowly allowing it to return to center and then perform a panel test. You need to do each thumbwheel switch in both directions and of course one at a time. The bad swith will give you a 'panel off'. Sometimes just exercising the switch will solve it. If not, you may have a weak spring or some other problem with the assembly which may require replacement. Simeon -----Original Message----- From: CJ.de.Bruijne@walcheren.ziekenhuis.nl [mailto:CJ.de.Bruijne@walcheren.ziekenhuis.nl] Sent: Thursday, June 06, 2002 7:59 AM To: linac-eng@plato.aristotle.net Subject: Varian couch sidepanel Hi colleagues, We do have a problem with one of our side-panels (new style, type 3) at a Clinac 2100 couch. After every beam the LED 'panel off' is blinking and they have to reset the panel before they can use it again. Any ideas? TIA Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl ****************************EMAIL DISCLAIMER****************************This e-mail and any files transmitted with it may be confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient or the individual responsible for delivering the e-mail to the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is strictly prohibited. If you have received this e-mail in error, please delete it and notify the sender or contact Health Information Management 312.996.3941. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 19:10:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17G0mo-0002F5-00; Thu, 06 Jun 2002 19:10:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E37BA1112F3; Thu, 6 Jun 2002 20:06:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA29768 for linac-eng-list; Thu, 6 Jun 2002 11:47:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from carme.scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA29764 for ; Thu, 6 Jun 2002 11:47:37 -0500 (CDT) Received: from neried. (neried.scf.sk.ca [172.24.48.3]) by carme.scf.sk.ca (Rockliffe SMTPRA 4.5.4) with SMTP id for ; Thu, 6 Jun 2002 10:50:09 -0600 Received: (from rpc086 [172.24.49.86]) by neried. (NAVGW 2.5.1.6) with SMTP id M2002060610475803687 for ; Thu, 06 Jun 2002 10:47:58 -0600 From: scot thiesson To: Linac-eng@plato.aristotle.net Date: Thu, 06 Jun 2002 10:47:27 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. Message-Id: Subject: Primus injector instabilities MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Opera 6.0 build 999 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: Linac-eng@plato.aristotle.net Date: Thu, 06 Jun 2002 10:47:27 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. Subject: Primus injector instabilities Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Machine: Primus dual energy 4/10 with multiple electron. Accelerator type: 7450 Problem: Primus injector BIAS and CLIPPER voltage instability causing beam current variations in HIX (10MV) And dose pulse amplitude swings in highE (15MEV). After six months of struggling with the commissioning of a Siemens Primus linac due to injector instabilities I have inserted several filter capacitors in the Injector High Voltage pulser board. Circuit changes are as follows, insertion of .1 ufd capacitors to TP2 (gnd) for the following points: U5pin1 to TP2, U5 pin8 to TP2, U6pin1 to TP2, U6pin8 to TP2, Q1base to Q1emitter, Q2base to Q2emitter. The addition of these filter caps greatly improved the regulation of the CLIPPER and BIAS supplies. If you have dose pulse variations in electron mode especially at the higher PFN settings or if you see energy ?noise? on your photon water scans I would encourage you to measure your BIAS and CLIPPER supply regulation during a beam. Set a FLUKE 87 on MIN MAX and pop off a run of 500 MU or so. You should NOT see variations greater than 200 milli volts, or thereabouts. Without these filter capacitors we were seeing variations of three to four volts. Note that for measured INJI this corresponds to 12ma/volt for the BIAS supply and 10ma/volt for the CLIPPER supply. With a measured beam current in 10MV mode we were seeing a corresponding fluctuation of about 6ma of beam current. Because of the load line of the accelerator this will change the energy, in our case by a measured 0.5 MV. These fluctuations during the coarse of scanning also changed our flatness and symmetry specifications sometimes by a few percent. I feel it is incumbent on all clinics who posses Primus linacs with HV PULSER boards referred to by schematic 1927206 to review the operation / regulation of these power supplies during beam time especially at the higher PFN settings. Scot Thiesson Senior Physics Technician Allan Blair Cancer Centre Regina Saskatchewan Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 21:33:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17G30b-0002OS-00; Thu, 06 Jun 2002 21:33:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D5A9D111315; Thu, 6 Jun 2002 22:29:07 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA25229 for linac-eng-list; Thu, 6 Jun 2002 14:12:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA25225 for ; Thu, 6 Jun 2002 14:12:47 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Thu, 6 Jun 2002 14:15:03 -0500 Message-ID: From: "Turner, Guy" To: Linac-eng@plato.aristotle.net Subject: RE: clutch drive on varian 2100 Date: Thu, 6 Jun 2002 14:15:02 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C20D8E.755F6B60" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: Linac-eng@plato.aristotle.net Subject: RE: clutch drive on varian 2100 Date: Thu, 6 Jun 2002 14:15:02 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C20D8E.755F6B60" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C20D8E.755F6B60 Content-Type: text/plain; charset="iso-8859-1" That is exactly the method I use. Works just fine! Guy Turner -----Original Message----- From: Williams, Rod [mailto:rod.williams@phci.org] Sent: Thursday, June 06, 2002 6:46 AM To: 'Marvin Rathburn'; Linac-eng@plato.aristotle.net Subject: RE: clutch drive on varian 2100 Hi Marvin I could be that your gantry driver needs to be adjusted, this is on the Catchall panel A1. Maybe the gantry is moving to fast. as far as adjusting the clutch I use my body against the gantry as it is moving at me to see if it slips before it drives me to the ground. Highly technical way to do it. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 -----Original Message----- From: Marvin Rathburn [SMTP:ratma@reg2.health.nb.ca] Sent: Wednesday, June 05, 2002 12:52 PM To: Linac-eng@plato.aristotle.net Subject: clutch drive on varian 2100 Good day to all I have a question regarding the clutch on the gantry drive for the 2100c/d our serial # 1161. When the auto enter is pressed on the hand pendant the gantry will rotates to the appropriate setting but when it gets close to the setting it does not slow down and there for the gantry bounces back and forth when it stops. When it does this it stops too far off the setting and the therapist has to push the auto enter button again for it to proceed to the right setting. ( it is generally off 0.3 more or less ) I installed a rebuild clutch one that I have put new clutch pads in. My question being is there a procedure for setting theses clutches up when they are installed? I cannot find any data on how much torque to use when setting the pressure on the clutch springs and/ or anything on a procedure to test them when they are on the machine. Best Regards Marvin Rathburn Saint John Regional Hospital Saint John N.B. Canada ------_=_NextPart_001_01C20D8E.755F6B60 Content-Type: text/html; charset="iso-8859-1" Message
    That is exactly the method I use.  Works just fine!
     
    Guy Turner
    -----Original Message-----
    From: Williams, Rod [mailto:rod.williams@phci.org]
    Sent: Thursday, June 06, 2002 6:46 AM
    To: 'Marvin Rathburn'; Linac-eng@plato.aristotle.net
    Subject: RE: clutch drive on varian 2100

    Hi Marvin

    I could be that your gantry driver needs to be adjusted, this is on the Catchall panel A1. Maybe the gantry is moving to fast.

    as far as adjusting the clutch I use my body against the gantry as it is moving at me to see if it slips before it drives me to the ground. Highly technical way to do it.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Marvin Rathburn [SMTP:ratma@reg2.health.nb.ca]
      Sent:   Wednesday, June 05, 2002 12:52 PM
      To:     Linac-eng@plato.aristotle.net
      Subject:        clutch drive on varian 2100

       Good day to all
                     I have a question regarding the clutch on the gantry drive for the 2100c/d our serial # 1161. When the auto enter is pressed on the hand pendant the gantry will rotates to the appropriate setting but when it gets close to the setting it does not slow down and there for the gantry bounces back and forth when it stops. When it does this it stops too far off the setting and the therapist has to push the auto enter button again for it to proceed to the right setting. ( it is generally off 0.3 more or less )

                   I installed a rebuild clutch one that I have put new clutch pads in. My question being is there a procedure for setting theses clutches up when they are installed? I cannot find any data on how much torque to use when setting the pressure on the clutch springs and/ or anything on a procedure to test them when they are on the machine.

                  Best Regards
                  Marvin Rathburn
                  Saint John Regional Hospital
                   Saint John N.B. Canada

    ------_=_NextPart_001_01C20D8E.755F6B60-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 22:24:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17G3oU-0002S4-00; Thu, 06 Jun 2002 22:24:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B955E111313; Thu, 6 Jun 2002 23:20:39 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA02706 for linac-eng-list; Thu, 6 Jun 2002 15:03:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA02701 for ; Thu, 6 Jun 2002 15:03:37 -0500 (CDT) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g56K3bL25941; Thu, 6 Jun 2002 14:03:38 -0600 (MDT) Received: from cancerboard.ab.ca ([164.102.249.255]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g56K3Ql05325; Thu, 6 Jun 2002 14:03:26 -0600 (MDT) Message-ID: <3CFFC0FE.7EC3D35E@cancerboard.ab.ca> Date: Thu, 06 Jun 2002 14:07:26 -0600 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: Marvin Rathburn Cc: Linac-eng@plato.aristotle.net Subject: Re: clutch drive on varian 2100 References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 06 Jun 2002 14:07:26 -0600 From: Len Johnson X-Accept-Language: en To: Marvin Rathburn Cc: Linac-eng@plato.aristotle.net Subject: Re: clutch drive on varian 2100 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Marvin; Are you are using the original slip clutch type that came with the machine? When Varian fits a Portal-vision system with retractable mounting arm system they also upgrade the slip clutch on the gantry drive. The two types are interchangeable. The upgraded clutch contains coil springs instead of the dished (Belleville) washers and is much more reliable. Regards, Len Johnson. Marvin Rathburn wrote: > Good day to all > I have a question regarding the clutch on the gantry drive for the 2100c/d our serial # 1161. When the auto enter is pressed on the hand pendant the gantry will rotates to the appropriate setting but when it gets close to the setting it does not slow down and there for the gantry bounces back and forth when it stops. When it does this it stops too far off the setting and the therapist has to push the auto enter button again for it to proceed to the right setting. ( it is generally off 0.3 more or less ) > I installed a rebuild clutch one that I have put new clutch pads in. My question being is there a procedure for setting theses clutches up when they are installed? I cannot find any data on how much torque to use when setting the pressure on the clutch springs and/ or anything on a procedure to test them when they are on the machine. > Best Regards > Marvin Rathburn > Saint John Regional Hospital > Saint John N.B. Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 06 23:47:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17G55w-0002XV-00; Thu, 06 Jun 2002 23:47:00 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B4A93111313; Fri, 7 Jun 2002 00:42:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA03557 for linac-eng-list; Thu, 6 Jun 2002 15:26:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA03553 for ; Thu, 6 Jun 2002 15:26:47 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA24411 for ; Fri, 7 Jun 2002 08:07:57 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 7 Jun 2002 08:29:40 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 07 Jun 2002 08:25:55 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 07 Jun 2002 08:25:45 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian couch sidepanel Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA03554 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 07 Jun 2002 08:25:45 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian couch sidepanel Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA03554 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, When they go into the room get them to *LOOK* before they touch. There should also be a LED indicating which self test failed. TW=thumbwheel KEY=button MEM=I forget. MEB=Dead person failure I have also found a button 'hanging' on several occasions. If button is problem. strip panel. remove all buttons. buff running surfaces in direction of button travel with fine emery cloth. reassemble. Good luck Dave. >>> 7/06/02 00:58:56 >>> Hi colleagues, We do have a problem with one of our side-panels (new style, type 3) at a Clinac 2100 couch. After every beam the LED 'panel off' is blinking and they have to reset the panel before they can use it again. Any ideas? TIA Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-medical-physics-engineering@JISCMAIL.AC.UK Fri Jun 07 11:02:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17GFdQ-0003eq-00; Fri, 07 Jun 2002 11:02:16 +0200 Received: from jiscmail.ac.uk (jiscmail.ac.uk [130.246.192.48]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7F9511112FC for ; Fri, 7 Jun 2002 11:57:58 +0200 (METDST) Received: from jiscmaila (jiscmail.ac.uk) by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <4.000FE648@jiscmail.ac.uk>; Fri, 7 Jun 2002 9:57:29 +0100 Received: from JISCMAIL.AC.UK by JISCMAIL.AC.UK (LISTSERV-TCP/IP release 1.8d) with spool id 12110271 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 7 Jun 2002 09:57:29 +0100 Received: from ori.rl.ac.uk by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <3.000FE6DD@jiscmail.ac.uk>; Fri, 7 Jun 2002 9:57:28 +0100 Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by ori.rl.ac.uk (8.11.1/8.11.1) with ESMTP id g578vSg17650 for ; Fri, 7 Jun 2002 09:57:28 +0100 Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 17GFYg-00057h-00; Fri, 07 Jun 2002 09:57:22 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3CF3A62D000C3FB7 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 7 Jun 2002 09:57:22 +0100 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-4 6.5.016) id 3CF605A8000C2EBB for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 7 Jun 2002 09:57:22 +0100 X-Internal-ID: 3CFF0CFA00008EE4 Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108) for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; 7 Jun 2002 09:57:16 +0100 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Fri, 7 Jun 2002 09:58:08 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Message-ID: <4BD1673C955CD41182DA00508BACF2DF01BD4EC0@YGC-MAIL> Date: Fri, 7 Jun 2002 09:58:02 +0100 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: "Jordan, Tom" Subject: FW: Primus injector instabilities To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK *** EOOH *** X-Internal-ID: 3CFF0CFA00008EE4 Content-Type: text/plain Date: Fri, 7 Jun 2002 09:58:02 +0100 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: "Jordan, Tom" Subject: FW: Primus injector instabilities To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK This is one of a thread on linac-eng mailbase that might be of interest to UK Siemens linac users. > -----Original Message----- > From: scot thiesson [SMTP:sthiesson@scf.sk.ca] > Sent: 06 June 2002 17:47 > To: Linac-eng@plato.aristotle.net > Subject: Primus injector instabilities > > Machine: > Primus dual energy 4/10 with multiple electron. Accelerator type: 7450 > > Problem: > Primus injector BIAS and CLIPPER voltage instability causing beam current > variations in HIX (10MV) > And dose pulse amplitude swings in highE (15MEV). > > After six months of struggling with the commissioning of a Siemens Primus > linac due to injector instabilities I have inserted > several filter capacitors in the Injector High Voltage pulser board. > Circuit changes are as follows, insertion of .1 ufd capacitors to TP2 > (gnd) for the following points: > U5pin1 to TP2, U5 pin8 to TP2, U6pin1 to TP2, U6pin8 to TP2, Q1base to > Q1emitter, Q2base to Q2emitter. > The addition of these filter caps greatly improved the regulation of the > CLIPPER and BIAS supplies. > If you have dose pulse variations in electron mode especially at the > higher PFN settings or if you see energy ?noise? on your > photon water scans I would encourage you to measure your BIAS and CLIPPER > supply regulation during a beam. Set a > FLUKE 87 on MIN MAX and pop off a run of 500 MU or so. You should NOT see > variations greater than 200 milli volts, or > thereabouts. Without these filter capacitors we were seeing variations of > three to four volts. Note that for measured INJI this > corresponds to 12ma/volt for the BIAS supply and 10ma/volt for the CLIPPER > supply. With a measured beam current in > 10MV mode we were seeing a corresponding fluctuation of about 6ma of beam > current. Because of the load line of the > accelerator this will change the energy, in our case by a measured 0.5 MV. > These fluctuations during the coarse of scanning > also changed our flatness and symmetry specifications sometimes by a few > percent. I feel it is incumbent on all clinics who > posses Primus linacs with HV PULSER boards referred to by schematic > 1927206 to review the operation / regulation of > these power supplies during beam time especially at the higher PFN > settings. > > > Scot Thiesson > Senior Physics Technician > Allan Blair Cancer Centre > Regina Saskatchewan > Canada > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 07 14:43:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17GJ5T-0004L5-00; Fri, 07 Jun 2002 14:43:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A31CE1112FB; Fri, 7 Jun 2002 15:39:05 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA03071 for linac-eng-list; Fri, 7 Jun 2002 07:18:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.lha.org ([170.122.200.53]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA03064 for ; Fri, 7 Jun 2002 07:18:43 -0500 (CDT) Received: FROM exchange.lha.org BY exchange.lha.org ; Fri Jun 07 08:18:00 2002 -0400 Received: by exchange.lha.org with Internet Mail Service (5.5.2653.19) id ; Fri, 7 Jun 2002 08:18:00 -0400 Message-ID: <3D998785DA22D611B68D00A0C9CDB0C00123B2D5@mail.lha.org> From: "Bitler, Richard L" To: "'linac-eng@plato.aristotle.net'" Subject: Varain 120 MLC Date: Fri, 7 Jun 2002 08:17:51 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bitler, Richard L" To: "'linac-eng@plato.aristotle.net'" Subject: Varain 120 MLC Date: Fri, 7 Jun 2002 08:17:51 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All, My hospital will be purchasing 120 MLC for both of our 2100C/D linacs. Can anyone give me an estimate of the time you spend maintaining/repairing these. I have seen many comments about them on the list, and I need to get a feel for how much service time these will require, in case we need additional manpower. Thanks, Rick Bitler Lancaster General Hospital 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 07 19:13:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17GNIn-00054I-00; Fri, 07 Jun 2002 19:13:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1EB971112FB; Fri, 7 Jun 2002 20:09:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA09801 for linac-eng-list; Fri, 7 Jun 2002 11:50:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rodney.cancercare.mb.ca ([192.139.125.101]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09794 for ; Fri, 7 Jun 2002 11:50:42 -0500 (CDT) Received: (from uucp@localhost) by rodney.cancercare.mb.ca (8.10.2+Sun/8.10.2) id g57GodC25829 for ; Fri, 7 Jun 2002 11:50:39 -0500 (CDT) Received: from UNKNOWN(172.18.125.26), claiming to be "mercury.cancercare.mb.ca" via SMTP by rodney, id smtpdAAALwaGvY; Fri Jun 7 16:48:08 2002 Received: from CCMD01-MTA by mercury.cancercare.mb.ca with Novell_GroupWise; Fri, 07 Jun 2002 11:48:06 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Fri, 07 Jun 2002 11:47:36 -0500 From: "Ken Allen" To: Subject: Siemens Newer Style Hand Control PCB Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 07 Jun 2002 11:47:36 -0500 From: "Ken Allen" To: Subject: Siemens Newer Style Hand Control PCB Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello List, We are in search of the main PCB for the newer style (Sorry don't have a part no for the entire assy.) Siemens Mevatron hand control. This would be the version with the LED display. Assy number is 5839431 Rev A and the Schematic number is 9418559 Rev G. We are also in search for the display itself. It's a PD2437 Siemens 9735 4-digit display. Any info on a source for these two items would be appreciated. Ken Allen Electronics Technologist CancerCare Manitoba Winnipeg, Manitoba,Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 11 09:51:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17HgRG-0000Sq-00; Tue, 11 Jun 2002 09:51:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3FFBC11130D; Tue, 11 Jun 2002 10:46:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA17198 for linac-eng-list; Tue, 11 Jun 2002 02:28:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r06.mx.aol.com (imo-r06.mx.aol.com [152.163.225.102]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA17194 for ; Tue, 11 Jun 2002 02:28:16 -0500 (CDT) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-r06.mx.aol.com (mail_out_v32.5.) id y.6.2a33fdfe (4564) for ; Tue, 11 Jun 2002 03:27:43 -0400 (EDT) Message-ID: <6.2a33fdfe.2a37006f@aol.com> Date: Tue, 11 Jun 2002 03:27:43 EDT Subject: dequing To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_6.2a33fdfe.2a37006f_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Tue, 11 Jun 2002 03:27:43 EDT Subject: dequing To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_6.2a33fdfe.2a37006f_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_6.2a33fdfe.2a37006f_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all on list, I am wondering if anyone out there is haveing problems with new Marconi 8503b tubes working properly. We have a CL 18 that has a loose base on the dequing tube, but still deques ok. When the tube is replaced with a new one, there is no dequing on the waveform. This is also true with other used dequers. Any thoughts on this would be appreciated. Thanks Mike Liddicote Accelerator Associates --part1_6.2a33fdfe.2a37006f_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all on list,
    I am wondering if anyone out there is haveing problems with new Marconi 8503b tubes working properly.  We have a CL 18 that has a loose base on the dequing tube, but still deques ok.  When the tube is replaced with a new one, there is no dequing on the waveform.  This is also true with other used dequers.  Any thoughts on this would be appreciated.  Thanks
    Mike Liddicote
    Accelerator Associates     --part1_6.2a33fdfe.2a37006f_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 11 15:33:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Hlm9-0004W7-00; Tue, 11 Jun 2002 15:33:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 21E1D11130D; Tue, 11 Jun 2002 16:28:29 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA20930 for linac-eng-list; Tue, 11 Jun 2002 08:10:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA20926 for ; Tue, 11 Jun 2002 08:10:05 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Tue, 11 Jun 2002 08:12:26 -0500 Message-ID: From: "Turner, Guy" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: dequing Date: Tue, 11 Jun 2002 08:12:24 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C21149.A0E93CC0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: dequing Date: Tue, 11 Jun 2002 08:12:24 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C21149.A0E93CC0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C21149.A0E93CC0 Content-Type: text/plain; charset="iso-8859-1" Something isn't adding up. Are you sure the tube with the loose base is dequing okay, or is the tube self-ionizing? When you tune PFN do you notice a change in deque %? -----Original Message----- From: Mlaa@aol.com [mailto:Mlaa@aol.com] Sent: Tuesday, June 11, 2002 2:28 AM To: linac-eng@plato.aristotle.net Subject: dequing Hi to all on list, I am wondering if anyone out there is haveing problems with new Marconi 8503b tubes working properly. We have a CL 18 that has a loose base on the dequing tube, but still deques ok. When the tube is replaced with a new one, there is no dequing on the waveform. This is also true with other used dequers. Any thoughts on this would be appreciated. Thanks Mike Liddicote Accelerator Associates ------_=_NextPart_001_01C21149.A0E93CC0 Content-Type: text/html; charset="iso-8859-1" Message
    Something isn't adding up.  Are you sure the tube with the loose base is dequing okay, or is the tube self-ionizing?  When you tune PFN do you notice a change in deque %?
    -----Original Message-----
    From: Mlaa@aol.com [mailto:Mlaa@aol.com]
    Sent: Tuesday, June 11, 2002 2:28 AM
    To: linac-eng@plato.aristotle.net
    Subject: dequing

    Hi to all on list,
    I am wondering if anyone out there is haveing problems with new Marconi 8503b tubes working properly.  We have a CL 18 that has a loose base on the dequing tube, but still deques ok.  When the tube is replaced with a new one, there is no dequing on the waveform.  This is also true with other used dequers.  Any thoughts on this would be appreciated.  Thanks
    Mike Liddicote
    Accelerator Associates
    ------_=_NextPart_001_01C21149.A0E93CC0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 11 17:28:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17HnZh-0005ZC-00; Tue, 11 Jun 2002 17:28:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 65E1E1112F5; Tue, 11 Jun 2002 18:23:44 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA23625 for linac-eng-list; Tue, 11 Jun 2002 10:02:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA23621 for ; Tue, 11 Jun 2002 10:02:24 -0500 (CDT) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 11 Jun 2002 11:01:52 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAE8@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: dequing Date: Tue, 11 Jun 2002 11:01:51 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Mlaa@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: dequing Date: Tue, 11 Jun 2002 11:01:51 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk For a couple of years or more, we have experienced the loose base problem on these tubes. We try very hard not to grab the glass part, but to pry the tube out, to avoid the base getting loose. Never was a problem in the good ol days. We have had a few sockets go bad over the years, showing overheating of the fingers which grab the tube. One might have been from the tube pin getting hot due to a bad contact/solder joint inside the pin. > -----Original Message----- > From: Mlaa@aol.com [SMTP:Mlaa@aol.com] > Sent: Tuesday, June 11, 2002 3:28 AM > To: linac-eng@plato.aristotle.net > Subject: dequing > > Hi to all on list, > I am wondering if anyone out there is haveing problems with new Marconi 8503b > tubes working properly. We have a CL 18 that has a loose base on the dequing > tube, but still deques ok. When the tube is replaced with a new one, there is > no dequing on the waveform. This is also true with other used dequers. Any > thoughts on this would be appreciated. Thanks > Mike Liddicote > Accelerator Associates 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 11 22:22:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Hs9r-0006MJ-00; Tue, 11 Jun 2002 22:22:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CB9A711130D; Tue, 11 Jun 2002 23:17:19 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA26403 for linac-eng-list; Tue, 11 Jun 2002 14:56:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA26399 for ; Tue, 11 Jun 2002 14:56:12 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id HAA19877 for ; Wed, 12 Jun 2002 07:36:52 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 12 Jun 2002 07:59:01 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 12 Jun 2002 07:55:16 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 12 Jun 2002 07:55:06 +1200 From: "Dave Pinchin" To: Subject: RE: dequing Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA26400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 12 Jun 2002 07:55:06 +1200 From: "Dave Pinchin" To: Subject: RE: dequing Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA26400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Gday, My experience tells me that the loose glass issue is a red herring. I've rarely found a bottle that hasn't gone loose on it's base (except for the septal, noval and rimlock series). Way back to the EBL1 (who remembers that series). In my training museum I have an 8503B removed 1996 from 2100#40 which has a loose base. As long as care is taken handling these bottles there is little danger of fracturing the electrical connection of tube elements to pins. Lever them out of socket rather than pull on glass etc etc. The real issue is - are the new Marconi tubes performing the deQ function? On this I cannot comment except that the bottles are probably still being put together in the same factory as EEV and to the same QA and runup proceedures. As long as the changes in name havn't rolled on down to the shop floor........... Dave. >>> "Maddox, Buford J" 12/06/02 03:01:51 >>> For a couple of years or more, we have experienced the loose base problem on these tubes. We try very hard not to grab the glass part, but to pry the tube out, to avoid the base getting loose. Never was a problem in the good ol days. We have had a few sockets go bad over the years, showing overheating of the fingers which grab the tube. One might have been from the tube pin getting hot due to a bad contact/solder joint inside the pin. > -----Original Message----- > From: Mlaa@aol.com [SMTP:Mlaa@aol.com] > Sent: Tuesday, June 11, 2002 3:28 AM > To: linac-eng@plato.aristotle.net > Subject: dequing > > Hi to all on list, > I am wondering if anyone out there is haveing problems with new Marconi 8503b > tubes working properly. We have a CL 18 that has a loose base on the dequing > tube, but still deques ok. When the tube is replaced with a new one, there is > no dequing on the waveform. This is also true with other used dequers. Any > thoughts on this would be appreciated. Thanks > Mike Liddicote > Accelerator Associates ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 12 03:35:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Hx2i-0006au-00; Wed, 12 Jun 2002 03:35:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD42D11130D; Wed, 12 Jun 2002 04:30:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA03141 for linac-eng-list; Tue, 11 Jun 2002 20:13:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta5.snfc21.pbi.net (mta5.snfc21.pbi.net [206.13.28.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA03137 for ; Tue, 11 Jun 2002 20:13:37 -0500 (CDT) Received: from REI-DGPC1.pacbell.net ([216.103.85.50]) by mta5.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0GXK00KG3JEIB4@mta5.snfc21.pbi.net> for Linac-eng@plato.aristotle.net; Tue, 11 Jun 2002 18:13:36 -0700 (PDT) Date: Tue, 11 Jun 2002 18:13:27 -0700 From: Domenic Greco Subject: RE: Varian water treatment chemicals In-reply-to: <000c01c20c9b$e5b454a0$a03818ac@scadomain.local> X-Sender: dgreco@postoffice.pacbell.net To: Brian Martin , "'Wayne Blaine'" , "Linac Engineer group (E-mail)" Message-id: <5.1.0.14.0.20020611180257.01041710@postoffice.pacbell.net> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT References: <001d01c20c93$f4eb91c0$90030180@E.BENEFIS.ORG> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 11 Jun 2002 18:13:27 -0700 From: Domenic Greco Subject: RE: Varian water treatment chemicals In-reply-to: <000c01c20c9b$e5b454a0$a03818ac@scadomain.local> X-Sender: dgreco@postoffice.pacbell.net To: Brian Martin , "'Wayne Blaine'" , "Linac Engineer group (E-mail)" Content-type: text/plain; charset=us-ascii; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk To all interested parties, Radiation Electronics stocks the Nalco chemicals in measured quantities, filters, and complete conversion kits. Call or email us for pricing (yes, were much cheaper than the OEM) and availability. Regards, Domenic Greco Radiation Electronics, Inc Sales: 888-937-4080 Service Dispatch: 888-850-9729 At 08:18 AM 6/5/2002 -0600, Brian Martin wrote: >Yes Wayne, we have done the same. We calculated similar costs and decided >to second source these chemicals. Varian is charging unbelievable prices >for a small amount of chemical. > >-----Original Message----- >From: owner-linac-eng@plato.aristotle.net >[mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Wayne Blaine >Sent: Wednesday, June 05, 2002 7:22 AM >To: Linac List >Subject: Varian water treatment chemicals > > >If you decide to order chemicals from Varian for water treatment, you will >find that they have a new pn which combines the Nalco 2838 (50ml bottle) >and Nalco CW-4751 (250ml bottle). Still in separate bottles. The Varian >cost? $500.00. PN is 100012222-01. > >After a little effort to contact the local Montana sales rep my facility now >has an account with Nalco. This is the pricing I got: > >Nalco 2838.11 $8.92/pound delivered. Smallest quantity 5 gallons >44pounds. Total $392.48. > >Nalco CW-4751.11 $6.92/pound delivered. Smallest quantity 5 gallons 40 >pounds. Total $276.80. > >The quick math I did on the cost per bottle gave me $1.00/50ml bottle for >2838 and $3.50/bottle CW-4751. >I will have enough chemical to support two linacs for 20 years. Is anyone >going to purchase these chemicals from Varian at the rate of >$500/application every six months? I called Varian service on the cost and >it was confirmed that the quantity is still 50ml and 250ml bottles and the >cost is $500.00. Has anyone else gotten the same results from Varian? >Found smaller quantities or different pricing from Nalco? > >You can also buy the filter separately from Varian. At $7.50 per filter the >price seems like a bargain compared to the chemicals. > >Wayne Blaine >Certified Radiology Equipment Specialist >Benefis Healthcare Great Falls, Mt. >blaiwayw@benefis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 12 14:09:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17I6vy-00026s-00; Wed, 12 Jun 2002 14:09:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 27F49111314; Wed, 12 Jun 2002 15:03:51 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA10019 for linac-eng-list; Wed, 12 Jun 2002 06:32:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA10015 for ; Wed, 12 Jun 2002 06:32:35 -0500 (CDT) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17I6Mb-0006iV-00; Wed, 12 Jun 2002 12:32:33 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3CE3CE800026CDDB for linac-eng@plato.aristotle.net; Wed, 12 Jun 2002 12:32:33 +0100 Received: from sabari.essexrivers.nhs.uk (195.104.128.100) by relay.nhs.uk (Syntegra-3 6.5.016) id 3CF603100016DBAF for linac-eng@plato.aristotle.net; Wed, 12 Jun 2002 12:32:33 +0100 Received: from thames.essexrivers.nhs.uk (unverified) by sabari.essexrivers.nhs.uk (Content Technologies SMTPRS 4.2.1) with ESMTP id for ; Wed, 12 Jun 2002 12:26:55 +0100 Received: by THAMES with Internet Mail Service (5.5.2650.21) id ; Wed, 12 Jun 2002 12:27:34 +0100 Message-ID: <1D2BB24BCAA2D311875200902798A0DE02F26817@THAMES> From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 12:27:33 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 12:27:33 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All Does anyone know where to get replacement Millennium MLC full leaf motors, other than Varian? We have had about five motors fail in 1.5 years - is this typical? Most of the failures have been seized motors. I was thinking about turning the power off in the head overnight, to reduce the heat. Any ideas gratefully received. Apologies if this has been said before. Chris Coley (Technician) Essex County Hospital ********************************************************************************** Essex Rivers Healthcare NHS Trust does not enter into contractual negotiations, contracts or any other form of legally binding agreement via e-mail. Therefore this message does not constitute any form of contractual offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or accept any legal responsibility for the contents of this message save where it is sent by one of it's employees in the course of his or her employment. This message is intended only for the individual or entity to which it is addressed and may contain information that is private and confidential. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication and it's attachment is strictly prohibited. If you have received this communication and it's attachments in error, please return the original message and attachments to us using the reply facility on e-mail. Essex Rivers Healthcare NHS Trust periodically and automatically monitors e-mails to ensure appropriate and lawful use is made of them. The contents of this message may therefore be subject to monitoring. This footnote also confirms that this email message has been swept by Sophos for the presence of computer viruses. ********************************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 12 16:10:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17I8pG-0003Nx-00; Wed, 12 Jun 2002 16:10:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4EA8C111313; Wed, 12 Jun 2002 17:04:59 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA11691 for linac-eng-list; Wed, 12 Jun 2002 08:44:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA11687 for ; Wed, 12 Jun 2002 08:44:45 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g5CDiCO22230; Wed, 12 Jun 2002 08:44:12 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g5CDiCs22226; Wed, 12 Jun 2002 08:44:12 -0500 (CDT) Received: through eSafe SMTP Relay 1021898053; Wed Jun 12 08:44:12 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 12 Jun 2002 08:44:12 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5EED@wmhmail.phci.org> From: "Williams, Rod" To: "'Coley Chris (RDE) Essex Rivers'" , linac-eng@plato.aristotle.net Subject: RE: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 08:44:04 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C21217.378B0280" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Coley Chris (RDE) Essex Rivers'" , linac-eng@plato.aristotle.net Subject: RE: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 08:44:04 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C21217.378B0280" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C21217.378B0280 Content-Type: text/plain Hi Chris As long as your MLC controller is off at nights turning off the power supply won't help the motor failure problem, but it will help everything else. Five motors in a year and a half is typical. Rod.Williams@phci.org WAUKESHA MEMORIAL HOSPITAL 262-928-4734 > -----Original Message----- > From: Coley Chris (RDE) Essex Rivers [SMTP:Chris.Coley@essexrivers.nhs.uk] > Sent: Wednesday, June 12, 2002 6:28 AM > To: linac-eng@plato.aristotle.net > Subject: Millennium MLC full leaf motors > > Hi All > > Does anyone know where to get replacement Millennium MLC full leaf motors, > other than Varian? > We have had about five motors fail in 1.5 years - is this typical? Most > of > the failures have been seized motors. I was thinking about turning the > power off in the head overnight, to reduce the heat. > > Any ideas gratefully received. Apologies if this has been said before. > > Chris Coley (Technician) > > Essex County Hospital > > > > ************************************************************************** > ******** > Essex Rivers Healthcare NHS Trust does not enter into contractual > negotiations, contracts or any other form of legally binding agreement via > e-mail. Therefore this message does not constitute any form of contractual > offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or > accept any legal responsibility for the contents of this message save > where it is sent by one of it's employees in the course of his or her > employment. > This message is intended only for the individual or entity to which it is > addressed and may contain information that is private and confidential. > If you are not the intended recipient, you are hereby notified that any > dissemination, distribution or copying of this communication and it's > attachment is strictly prohibited. > If you have received this communication and it's attachments in error, > please return the original message and attachments to us using the reply > facility on e-mail. > Essex Rivers Healthcare NHS Trust periodically and automatically monitors > e-mails to ensure appropriate and lawful use is made of them. The contents > of this message may therefore be subject to monitoring. > > This footnote also confirms that this email message has been swept by > Sophos for the presence of computer viruses. > ************************************************************************** > ******** ------_=_NextPart_001_01C21217.378B0280 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Millennium MLC full leaf motors

    Hi Chris

    As long as your MLC co= ntroller is off at nights turning off the power supply won't help the mot= or failure problem, but it will help everything else.  Five motors i= n a year and a half is typical.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL HOSPITAL
    262-928-4734


      -----Original Message-----
      From:   Coley Chris (RDE) Essex Rivers [SMTP:Chris.Coley@e= ssexrivers.nhs.uk]
      Sent:   Wednesday, June 12, 2002 6:28 AM
      To:     linac-eng@plato.aristotle.net
      Subject:    &nbs= p;   Millennium MLC fu= ll leaf motors

      Hi All

      Does anyone know where to get replacemen= t Millennium MLC full leaf motors,
      other than Varian?
      We have had about five motors fail in 1= .5 years - is this typical?  Most of
      the failures have been seized motors.&n= bsp; I was thinking about turning the
      power off in the head overnight, to red= uce the heat.

      Any ideas gratefully received.  Apo= logies if this has been said before.

      Chris Coley (Technician)

      Essex County Hospital



      ****************************************= ******************************************
      Essex Rivers Healthcare NHS Trust does = not enter into contractual negotiations, contracts or any other form of l= egally binding agreement via e-mail. Therefore this message does not cons= titute any form of contractual offer or acceptance. Essex Rivers Healthca= re NHS Trust does not assume or accept any legal responsibility for the c= ontents of this message save where it is sent by one of it's employees in= the course of his or her employment.

      This message is intended only for the in= dividual or entity to which it is addressed and may contain information t= hat is private and confidential.

      If you are not the intended recipient, y= ou are hereby notified that any dissemination, distribution or copying of= this communication and it's attachment is strictly prohibited.

      If you have received this communication = and it's attachments in error, please return the original message and att= achments to us using the reply facility on e-mail.

      Essex Rivers Healthcare NHS Trust period= ically and automatically monitors e-mails to ensure appropriate and lawfu= l use is made of them. The contents of this message may therefore be subj= ect to monitoring.

      This footnote also confirms that this em= ail message has been swept by Sophos for the presence of computer viruses= .
      ***************************************= *******************************************

    ------_=_NextPart_001_01C21217.378B0280-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 12 16:45:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17I9NH-0003hk-00; Wed, 12 Jun 2002 16:45:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 90702111311; Wed, 12 Jun 2002 17:40:11 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA12333 for linac-eng-list; Wed, 12 Jun 2002 09:16:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from carme.scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA12329 for ; Wed, 12 Jun 2002 09:16:07 -0500 (CDT) Received: from neried. (neried.scf.sk.ca [172.24.48.3]) by carme.scf.sk.ca (Rockliffe SMTPRA 4.5.4) with SMTP id for ; Wed, 12 Jun 2002 08:18:36 -0600 Received: (from spc160 [172.24.56.160]) by neried. (NAVGW 2.5.1.6) with SMTP id M2002061208163024166 ; Wed, 12 Jun 2002 08:16:30 -0600 From: "Brian Martin" To: "'Coley Chris (RDE) Essex Rivers'" , "Linac Engineer group (E-mail)" Subject: RE: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 08:16:35 -0600 Message-ID: <000001c2121b$c2b7fd50$a03818ac@scadomain.local> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) In-reply-to: <1D2BB24BCAA2D311875200902798A0DE02F26817@THAMES> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Brian Martin" To: "'Coley Chris (RDE) Essex Rivers'" , "Linac Engineer group (E-mail)" Subject: RE: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 08:16:35 -0600 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal In-reply-to: <1D2BB24BCAA2D311875200902798A0DE02F26817@THAMES> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Chris, The motors you are referring to are made by Maxon Precision Motor. Their number is (650) 697-9614 in Burlingame, California. They must be ordered in three separate parts, however, they are shipped assembled. The prices are similar to Varian's prices unless you order larger quantities of 20 or more. The prices I received ranged from $100.00 to $160.00 US depending on quantity. If you are going through a lot of motors you may want to check your lead screws and ensure the bearings are not making noise. If you need a second source on bearings let me know and I will have my co-worker send you the specs. We have tried these bearings and they work very well. We are finding replacing the screws before they get too bad has saved us replacing motors. With the bearing replacements being affordable, we are considering cycling through the screws during regular PM's over a period of time.( i.e.: 10 screws per PM scheduled every 3 months) Well, back to the motors. The full leaf motors are as follows: Full Leaf: Planetary gear head GP 13 A: p/n 110314 RE 13: p/n 118501 Digital Magnetic Encoder 16 counts per turn, 2 channels: p/n 110778 Half Leaf: Planetary gear head GP 10 A: p/n 218416 RE 10: p/n 118400 Digital Magnetic Encoder 12 counts per turn, 2 Channels: p/n: 138061 These part numbers are for the Varian 120 leaf MLC full and half leaf motors. Hope this helps you. Brian Martin, SCC -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Coley Chris (RDE) Essex Rivers Sent: Wednesday, June 12, 2002 5:28 AM To: linac-eng@plato.aristotle.net Subject: Millennium MLC full leaf motors Hi All Does anyone know where to get replacement Millennium MLC full leaf motors, other than Varian? We have had about five motors fail in 1.5 years - is this typical? Most of the failures have been seized motors. I was thinking about turning the power off in the head overnight, to reduce the heat. Any ideas gratefully received. Apologies if this has been said before. Chris Coley (Technician) Essex County Hospital **************************************************************************** ****** Essex Rivers Healthcare NHS Trust does not enter into contractual negotiations, contracts or any other form of legally binding agreement via e-mail. Therefore this message does not constitute any form of contractual offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or accept any legal responsibility for the contents of this message save where it is sent by one of it's employees in the course of his or her employment. This message is intended only for the individual or entity to which it is addressed and may contain information that is private and confidential. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication and it's attachment is strictly prohibited. If you have received this communication and it's attachments in error, please return the original message and attachments to us using the reply facility on e-mail. Essex Rivers Healthcare NHS Trust periodically and automatically monitors e-mails to ensure appropriate and lawful use is made of them. The contents of this message may therefore be subject to monitoring. This footnote also confirms that this email message has been swept by Sophos for the presence of computer viruses. **************************************************************************** ****** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 12 18:11:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17IAiX-0004Rz-00; Wed, 12 Jun 2002 18:11:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 58133111313; Wed, 12 Jun 2002 19:06:12 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA14350 for linac-eng-list; Wed, 12 Jun 2002 10:37:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA14344 for ; Wed, 12 Jun 2002 10:37:52 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 12 Jun 2002 15:29:34 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Wed, 12 Jun 2002 08:38:48 -0700 Message-ID: <116B1F67502ED3119B2D00902740B816025C4A05@exchange3.inhs.org> From: "Bush, Thomas M." To: "'Brian Martin'" Cc: "'Linac-eng@plato.aristotle.net'" Subject: RE: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 08:37:28 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Brian Martin'" Cc: "'Linac-eng@plato.aristotle.net'" Subject: RE: Millennium MLC full leaf motors Date: Wed, 12 Jun 2002 08:37:28 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk To all motorheads.... The MLC motors (all types) are available from Radiation Electronics in California for a considerable discount. They just posted today (Domenic Greco) I have purchased them with considerable satisfaction. Tom Bush -----Original Message----- From: Brian Martin [mailto:bmartin@scf.sk.ca] Sent: Wednesday, June 12, 2002 7:17 AM To: 'Coley Chris (RDE) Essex Rivers'; Linac Engineer group (E-mail) Subject: RE: Millennium MLC full leaf motors Chris, The motors you are referring to are made by Maxon Precision Motor. Their number is (650) 697-9614 in Burlingame, California. They must be ordered in three separate parts, however, they are shipped assembled. The prices are similar to Varian's prices unless you order larger quantities of 20 or more. The prices I received ranged from $100.00 to $160.00 US depending on quantity. If you are going through a lot of motors you may want to check your lead screws and ensure the bearings are not making noise. If you need a second source on bearings let me know and I will have my co-worker send you the specs. We have tried these bearings and they work very well. We are finding replacing the screws before they get too bad has saved us replacing motors. With the bearing replacements being affordable, we are considering cycling through the screws during regular PM's over a period of time.( i.e.: 10 screws per PM scheduled every 3 months) Well, back to the motors. The full leaf motors are as follows: Full Leaf: Planetary gear head GP 13 A: p/n 110314 RE 13: p/n 118501 Digital Magnetic Encoder 16 counts per turn, 2 channels: p/n 110778 Half Leaf: Planetary gear head GP 10 A: p/n 218416 RE 10: p/n 118400 Digital Magnetic Encoder 12 counts per turn, 2 Channels: p/n: 138061 These part numbers are for the Varian 120 leaf MLC full and half leaf motors. Hope this helps you. Brian Martin, SCC -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Coley Chris (RDE) Essex Rivers Sent: Wednesday, June 12, 2002 5:28 AM To: linac-eng@plato.aristotle.net Subject: Millennium MLC full leaf motors Hi All Does anyone know where to get replacement Millennium MLC full leaf motors, other than Varian? We have had about five motors fail in 1.5 years - is this typical? Most of the failures have been seized motors. I was thinking about turning the power off in the head overnight, to reduce the heat. Any ideas gratefully received. Apologies if this has been said before. Chris Coley (Technician) Essex County Hospital **************************************************************************** ****** Essex Rivers Healthcare NHS Trust does not enter into contractual negotiations, contracts or any other form of legally binding agreement via e-mail. Therefore this message does not constitute any form of contractual offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or accept any legal responsibility for the contents of this message save where it is sent by one of it's employees in the course of his or her employment. This message is intended only for the individual or entity to which it is addressed and may contain information that is private and confidential. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication and it's attachment is strictly prohibited. If you have received this communication and it's attachments in error, please return the original message and attachments to us using the reply facility on e-mail. Essex Rivers Healthcare NHS Trust periodically and automatically monitors e-mails to ensure appropriate and lawful use is made of them. The contents of this message may therefore be subject to monitoring. This footnote also confirms that this email message has been swept by Sophos for the presence of computer viruses. **************************************************************************** ****** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 13 11:05:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17IQXx-0007aU-00; Thu, 13 Jun 2002 11:05:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5A9F2111312; Thu, 13 Jun 2002 12:00:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA00576 for linac-eng-list; Thu, 13 Jun 2002 03:33:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA00572 for ; Thu, 13 Jun 2002 03:33:42 -0500 (CDT) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17IQ31-0001iK-00; Thu, 13 Jun 2002 09:33:39 +0100 Received: from relay.nhs.uk (194.62.42.142) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3CE3CE8000280A58 for linac-eng@plato.aristotle.net; Thu, 13 Jun 2002 09:33:39 +0100 Received: from sabari.essexrivers.nhs.uk (195.104.128.100) by relay.nhs.uk (Syntegra-2 6.5.016) id 3CF60176001E18FC for linac-eng@plato.aristotle.net; Thu, 13 Jun 2002 09:33:39 +0100 Received: from thames.essexrivers.nhs.uk (unverified) by sabari.essexrivers.nhs.uk (Content Technologies SMTPRS 4.2.1) with ESMTP id for ; Thu, 13 Jun 2002 09:28:08 +0100 Received: by THAMES with Internet Mail Service (5.5.2650.21) id ; Thu, 13 Jun 2002 09:28:50 +0100 Message-ID: <1D2BB24BCAA2D311875200902798A0DE02F2689B@THAMES> From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: MLC motors Date: Thu, 13 Jun 2002 09:28:47 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: MLC motors Date: Thu, 13 Jun 2002 09:28:47 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All Many thanks for the replies about the MLC motors. It is consolation that I am not alone and I thank god we are not doing IMRT. Chris Coley (Technician) Essex County Hospital ********************************************************************************** Essex Rivers Healthcare NHS Trust does not enter into contractual negotiations, contracts or any other form of legally binding agreement via e-mail. Therefore this message does not constitute any form of contractual offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or accept any legal responsibility for the contents of this message save where it is sent by one of it's employees in the course of his or her employment. This message is intended only for the individual or entity to which it is addressed and may contain information that is private and confidential. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication and it's attachment is strictly prohibited. If you have received this communication and it's attachments in error, please return the original message and attachments to us using the reply facility on e-mail. Essex Rivers Healthcare NHS Trust periodically and automatically monitors e-mails to ensure appropriate and lawful use is made of them. The contents of this message may therefore be subject to monitoring. This footnote also confirms that this email message has been swept by Sophos for the presence of computer viruses. ********************************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 13 14:59:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17IUBu-0001ss-00; Thu, 13 Jun 2002 14:59:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D90CE1112FB; Thu, 13 Jun 2002 15:53:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA02556 for linac-eng-list; Thu, 13 Jun 2002 07:34:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02552 for ; Thu, 13 Jun 2002 07:34:36 -0500 (CDT) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Thu, 13 Jun 2002 08:34:34 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C212D6.AC5BBCF4" Subject: Motors X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 13 Jun 2002 08:34:34 -0400 Message-ID: X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Thread-Topic: Motors Thread-Index: AcIS1qvVpkAKzRK8Rs27gLDtXLdwIQ== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 13 Jun 2002 12:34:34.0535 (UTC) FILETIME=[AC738B70:01C212D6] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C212D6.AC5BBCF4" Subject: Motors X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 13 Jun 2002 08:34:34 -0400 X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Thread-Topic: Motors Thread-Index: AcIS1qvVpkAKzRK8Rs27gLDtXLdwIQ== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 13 Jun 2002 12:34:34.0535 (UTC) FILETIME=[AC738B70:01C212D6] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C212D6.AC5BBCF4 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Does anyone know the specs for the motors for the non-millenium series, = i.e. the 52 leaf mark I? Giuseppe 'Joe' Orsolini RT(T) =20 Service Engineer=20 2002-2004 Cancer Center Employee Council Rep =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) =20 ------_=_NextPart_001_01C212D6.AC5BBCF4 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 eJ8+IiMMAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEgAEABwAAAE1vdG9ycwCEAgEFgAMADgAA ANIHBgANAAgAIgAiAAQAPAEBIIADAA4AAADSBwYADQAIACIAIgAEADwBAQmAAQAhAAAANzE3NDgz RkY3QkIzRDI0MjkwMjc0NEU0MkRGNzc0RjUAIAcBA5AGANQIAAAyAAAACwACAAEAAAADACYAAAAA AAIBMQABAAAAFAEAAFBDREZFQjA5AAEAAgB8AAAAAAAAADihuxAF5RAaobsIACsqVsIAAEVNU01E Qi5ETEwAAAAAAAAAABtV+iCqZhHNm8gAqgAvxFoMAAAASFNDRU1BSUwzAC9vPW1jYy52aXJnaW5p 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owner-linac-eng@plato.aristotle.net Thu Jun 13 16:09:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17IVI3-0002kX-00; Thu, 13 Jun 2002 16:09:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 81D511112FB; Thu, 13 Jun 2002 17:04:04 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA03592 for linac-eng-list; Thu, 13 Jun 2002 08:40:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA03588 for ; Thu, 13 Jun 2002 08:40:26 -0500 (CDT) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Thu, 13 Jun 2002 09:40:25 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C212DF.DF7DC520" Subject: Motors X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 13 Jun 2002 09:40:25 -0400 Message-ID: X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Thread-Topic: Motors Thread-Index: AcIS1qvVpkAKzRK8Rs27gLDtXLdwIQ== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 13 Jun 2002 13:40:25.0846 (UTC) FILETIME=[DF9DC160:01C212DF] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C212DF.DF7DC520" Subject: Motors X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 13 Jun 2002 09:40:25 -0400 X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Thread-Topic: Motors Thread-Index: AcIS1qvVpkAKzRK8Rs27gLDtXLdwIQ== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 13 Jun 2002 13:40:25.0846 (UTC) FILETIME=[DF9DC160:01C212DF] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C212DF.DF7DC520 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ************CORRECTION*************** supposed to be mark II Does anyone know the specs for the motors for the non-millenium series, = i.e. the 52 leaf mark II? Giuseppe 'Joe' Orsolini RT(T) =20 Service Engineer=20 2002-2004 Cancer Center Employee Council Rep =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) =20 ------_=_NextPart_001_01C212DF.DF7DC520 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 ------_=_NextPart_001_01C212DF.DF7DC520-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-medical-physics-engineering@JISCMAIL.AC.UK Fri Jun 14 17:12:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17IskE-0001xT-00; Fri, 14 Jun 2002 17:12:10 +0200 Received: from jiscmail.ac.uk (jiscmail.ac.uk [130.246.192.48]) by caviar.isi.uu.nl (Postfix) with ESMTP id BCD351112FC for ; Fri, 14 Jun 2002 18:06:32 +0200 (METDST) Received: from jiscmaila (jiscmail.ac.uk) by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <1.00101FD0@jiscmail.ac.uk>; Fri, 14 Jun 2002 16:07:14 +0100 Received: from JISCMAIL.AC.UK by JISCMAIL.AC.UK (LISTSERV-TCP/IP release 1.8d) with spool id 12295561 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 14 Jun 2002 16:07:14 +0100 Received: from ori.rl.ac.uk by jiscmail.ac.uk (LSMTP for Windows NT v1.1b) with SMTP id <8.0010209B@jiscmail.ac.uk>; Fri, 14 Jun 2002 16:07:13 +0100 Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by ori.rl.ac.uk (8.11.1/8.11.1) with ESMTP id g5EF7AT02149 for ; Fri, 14 Jun 2002 16:07:10 +0100 Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17IsfN-00031I-00; Fri, 14 Jun 2002 16:07:09 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3CF3A62D001E5488 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 14 Jun 2002 16:07:09 +0100 Received: from mail.kingsch.nhs.uk (195.105.127.158) by relay.nhs.uk (Syntegra-1 6.5.016) id 3CF5FB9200218799 for MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK; Fri, 14 Jun 2002 16:07:09 +0100 Received: by mail.kingshc.nhs.uk with Internet Mail Service (5.5.2650.21) id ; Fri, 14 Jun 2002 16:07:44 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Message-ID: <3F67E3F6D4D0D3119448000000005ED001E96129@mail.kingshc.nhs.uk> Date: Fri, 14 Jun 2002 16:07:36 +0100 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: "Thurston, Jim" Subject: Reduntant equipment To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK *** EOOH *** Content-Type: text/plain Date: Fri, 14 Jun 2002 16:07:36 +0100 Reply-To: A list to encourage discussion amongst academic Medical Physics in the UK Sender: A list to encourage discussion amongst academic Medical Physics in the UK From: "Thurston, Jim" Subject: Reduntant equipment To: MEDICAL-PHYSICS-ENGINEERING@JISCMAIL.AC.UK Hi there, We've been having a bit of a late spring clear out, and we've got a few pieces of kit available to anyone who has a use for them: Firstly a Laser Instrumentation Laser Power Meter 7102 series with a surface and volume radiometers, all housed in a couple of nice wooden boxes. Secondly, an optical fibre polishing kit made by SLT - not too sure about details on this one. Finally, a Nuclear Data ND66P Multi-channel analyser - aperently good piece of kit in it's day - uses 5.25" floppies!! Any takers?? Jim Thurston, King's Radiation Protection Service Tel 020 7346 1644 This email and any files transmitted with it are confidential and solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify Postmaster@kingshc.nhs.uk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 17 03:12:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Jl4Y-0005te-00; Mon, 17 Jun 2002 03:12:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F268F1112F5; Mon, 17 Jun 2002 04:06:39 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA15401 for linac-eng-list; Sun, 16 Jun 2002 19:48:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA15397 for ; Sun, 16 Jun 2002 19:48:53 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id KAA04697; Mon, 17 Jun 2002 10:18:07 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id JAA16053; Mon, 17 Jun 2002 09:59:47 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id JAA11159; Mon, 17 Jun 2002 09:59:38 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma010883; Mon, 17 Jun 02 09:58:41 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id JAA10799; Mon, 17 Jun 2002 09:58:41 +0930 (CST) Message-Id: <200206170028.JAA10799@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 17 Jun 02 09:58:41 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 17 Jun 02 09:58:22 +0930 From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net, CJ.de.Bruijne@walcheren.ziekenhuis.nl Date: Mon, 17 Jun 2002 09:58:17 +0930 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Varian couch sidepanel In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net, CJ.de.Bruijne@walcheren.ziekenhuis.nl Date: Mon, 17 Jun 2002 09:58:17 +0930 Content-type: text/plain; charset=US-ASCII Subject: Re: Varian couch sidepanel In-reply-to: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Sorry for late reply. I was on leave. Looks like we had exactly the same problem in the past. After beaming-on the self test on the panels executed and it sends the panel into test or service mode that require resetting. This has nothing to do with thumb wheels not being centred or sticky keys as those faults make the panel to log off during normal operation without executing the self test. The reason for our fault was the gatearray (or PROM) chip that probably lost some bits which did not stop the panel from normal operation apart from logging off after the test. Try to swap those chips between the sides and if the fault follows then replace the faulty chip. If it does not, then good luck in troubleshooting:-) Cheers, From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato.aristotle.net Subject: Varian couch sidepanel Date sent: Thu, 6 Jun 2002 14:58:56 +0200 > Hi colleagues, > > We do have a problem with one of our side-panels (new style, type 3) > at a Clinac 2100 couch. > After every beam the LED 'panel off' is blinking and they have to > reset the panel before they can use it again. > > Any ideas? > > TIA > Keesjan de Bruijne > Ziekenhuis Walcheren > Vlissingen, the Netherlands > afd. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl > Andrew Frolov Manager, Radiation Engineering Medical Physics Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 17 05:39:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17JnMU-00061Q-00; Mon, 17 Jun 2002 05:39:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EB2C01112F5; Mon, 17 Jun 2002 06:33:18 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA18313 for linac-eng-list; Sun, 16 Jun 2002 22:19:42 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA18309 for ; Sun, 16 Jun 2002 22:19:39 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id OAA18108 for ; Mon, 17 Jun 2002 14:59:49 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Mon, 17 Jun 2002 15:22:26 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 17 Jun 2002 15:18:41 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 17 Jun 2002 15:18:31 +1200 From: "Dave Pinchin" To: Subject: Varian 600C Mag fil power supply. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id WAA18310 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 17 Jun 2002 15:18:31 +1200 From: "Dave Pinchin" To: Subject: Varian 600C Mag fil power supply. Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id WAA18310 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, Today we lost the bridge rectifier in the 600C Mag fil PS. The first one lasted 6 yrs. The second 6 weeks. I notice there are 6 or so in the spares kit. Does this mean these are prone to failure?? Any comments anyone? Dave ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 17 10:58:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17JsLY-0007e4-00; Mon, 17 Jun 2002 10:58:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3E0551112F3; Mon, 17 Jun 2002 11:52:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA23957 for linac-eng-list; Mon, 17 Jun 2002 03:35:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA23953 for ; Mon, 17 Jun 2002 03:35:49 -0500 (CDT) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17JrzG-00073D-00; Mon, 17 Jun 2002 09:35:46 +0100 Received: from relay.nhs.uk (194.62.42.142) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3CF3A62D00218725 for linac-eng@plato.aristotle.net; Mon, 17 Jun 2002 09:35:45 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-2 6.5.016) id 3CF60176002686D8 for linac-eng@plato.aristotle.net; Mon, 17 Jun 2002 09:35:46 +0100 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Mon, 17 Jun 2002 09:36:46 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Mon, 17 Jun 2002 09:36:29 +0100 From: "Chris Forrest" To: , Subject: Re: Varian 600C Mag fil power supply. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA23954 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 17 Jun 2002 09:36:29 +0100 From: "Chris Forrest" To: , Subject: Re: Varian 600C Mag fil power supply. Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA23954 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave, I can remember these blowing on a regular basis on our circa 1990 600Cs. I recall that there were two types, one with a stud and one with a hole. I tended to find the one with the hole was more reliable? When I started to look into the problem the only possible explanation I could find for the failure was that some kind of transient was causing the rect to weaken and then blow. This is what I found: 1) Some evidence arcing on the mag fil cable. The cable was supported by a nylon insulator immediately before it goes through the Mag Fil monitor toriod. I thought it strange at the time that a long standoff pillar was used but the screws securing the pillar were metal and extended quite a way into the pillar (almost up to the cable!). I replaced the screw with a nylon one. 2) Checked the routing of this cable generally for blackening indicating arcing and ensured it didn't pass close to earth points. 3) Checked/ replaced the spark gap & cap on the Mag Fil terminals. Since implementing the above, the number of failures did reduce considerably but we do still get them but only once in 5 years or so. Another point to consider perhaps is Mod faults. Does the kick from a sparking Maggie weaken the rectifier? It shouldn't do I know but may be worth considering. Regards, Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 >>> "Dave Pinchin" 06/17/02 04:18AM >>> G'day, Today we lost the bridge rectifier in the 600C Mag fil PS. The first one lasted 6 yrs. The second 6 weeks. I notice there are 6 or so in the spares kit. Does this mean these are prone to failure?? Any comments anyone? Dave ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 17 15:25:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17JwVP-0002ug-00; Mon, 17 Jun 2002 15:25:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 507431112F3; Mon, 17 Jun 2002 16:19:02 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA28184 for linac-eng-list; Mon, 17 Jun 2002 07:59:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA28180 for ; Mon, 17 Jun 2002 07:59:57 -0500 (CDT) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id 22A1C1112F7; Mon, 17 Jun 2002 15:58:51 +0200 (METDST) Received: from (kriek.radcl.ruu.nl) [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17JwBl-0002ag-01; Mon, 17 Jun 2002 15:04:57 +0200 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 17 Jun 02 14:56:34 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 17 Jun 02 14:56:06 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: linac-eng@plato.aristotle.net, JDDIHWRR@aol.com Date: Mon, 17 Jun 2002 14:55:56 +0200 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: unwanted site hits In-reply-to: <1a8.313a4de.2a299362@aol.com> X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: linac-eng@plato.aristotle.net, JDDIHWRR@aol.com Date: Mon, 17 Jun 2002 14:55:56 +0200 Content-type: text/plain; charset=US-ASCII Subject: Re: unwanted site hits In-reply-to: <1a8.313a4de.2a299362@aol.com> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I was just doing a cleanout of my email, and have realised something that may be pertinent to this particular case. I believe that some of the SPAM that the list received was in html format. As your email client is/was html compatible, then even selecting the email in order to delete it could initiate a site visit in the following manner(assuming a preview pane). This type of message can easily (and often do) contain links to graphics on a website - all you see in the message is the graphic. This could easily be the source of the "visit initiation". As I've already deleted all the spam, I don't know if this was the case, perhaps somebody else could (carefully) check this out. In any case you should make your IM people prove which restricted sites were visited and, in particular, which files from those sites were downloaded to your pc. If they are all small gif's and jpg's then this may well be the cause. Hope this helps Stuart From: JDDIHWRR@aol.com Date sent: Fri, 31 May 2002 23:02:58 EDT Subject: unwanted site hits To: linac-eng@plato.aristotle.net > > --part1_1a8.313a4de.2a299362_boundary > Content-Type: text/plain; charset="US-ASCII" > Content-Transfer-Encoding: 7bit > > To the list, > I am writing to the list with a problem. I was terminated today from my > position by our Corporate IM people. > I was accused of initiating site visits to restricted sites. I was assured > that my PC was the originator. > I know that we had some discussion about SPAMMING and other problems on this > list. > Apparently this started on the 16th of April. > I have never initiated a site visit from my PC. Anyone who understands that > He will lose his job would be insane to do that, especially from his own PC. > I need to know if anyone else has come up against this problem. > I am questioning all the server lists that I am a member of. > Any reports will be appreciated and looked into by my HR Department. > Thanking you for your help in advance. > Jerry Dukes, Texas. > > --part1_1a8.313a4de.2a299362_boundary > Content-Type: text/html; charset="US-ASCII" > Content-Transfer-Encoding: 7bit > > To the list, >
    I am writing to the list with a problem. I was terminated today from my position by our Corporate IM people. >
    I was accused of initiating site visits to restricted sites. I was assured that my PC was the originator. >
    I know that we had some discussion about SPAMMING and other problems on this list. >
    Apparently this started on the 16th of April. >
    I have never initiated a site visit from my PC. Anyone who understands that He will lose his job would be insane to do that, especially from his own PC. >
    I need to know if anyone else has come up against this problem. >
    I am questioning all the server lists that I am a member of. >
    Any reports will be appreciated and looked into by my HR Department. >
    Thanking you for your help in advance. >
    Jerry Dukes, Texas.     > > --part1_1a8.313a4de.2a299362_boundary-- -------------- Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 17 16:16:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17JxJ3-0003VA-00; Mon, 17 Jun 2002 16:16:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 72FFA1112F3; Mon, 17 Jun 2002 17:10:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA29221 for linac-eng-list; Mon, 17 Jun 2002 08:45:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA29217 for ; Mon, 17 Jun 2002 08:45:06 -0500 (CDT) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 17 Jun 2002 13:45:06 UT Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Mon, 17 Jun 2002 08:45:05 -0500 Message-ID: From: Tyson Long To: "List Server (E-mail 2)" Subject: CCX Date: Mon, 17 Jun 2002 08:45:02 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "List Server (E-mail 2)" Subject: CCX Date: Mon, 17 Jun 2002 08:45:02 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We have uninstalled an 1800 that had a CCX. We have found a home for everything but the CCX. If interested please email me. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 17 16:59:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17JxyY-00043d-00; Mon, 17 Jun 2002 16:59:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3B7DD1112F3; Mon, 17 Jun 2002 17:53:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA29073 for linac-eng-list; Mon, 17 Jun 2002 08:38:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA29069 for ; Mon, 17 Jun 2002 08:38:23 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Subject: RE: Varian 600C Mag fil power supply. X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Mon, 17 Jun 2002 09:26:36 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386B7@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Varian 600C Mag fil power supply. Thread-Index: AcIVtZzC6rjHNKo+RUy3ckKcbxMVcQATGAZw From: "Tim Cullen" To: "Dave Pinchin" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA29070 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="US-ASCII" Subject: RE: Varian 600C Mag fil power supply. X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Mon, 17 Jun 2002 09:26:36 -0400 Thread-Topic: Varian 600C Mag fil power supply. Thread-Index: AcIVtZzC6rjHNKo+RUy3ckKcbxMVcQATGAZw From: "Tim Cullen" To: "Dave Pinchin" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA29070 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Dave, In my opinion, key word "my," there were a bad batch of these out there. My fix was to replace with one purchased from a local electronics supply house and wallah, never happened again. And like you said, the fact there were/are so many in spare would arouse suspicion. You would think they would put more lamps in spares versus bridge rectifiers. Tim Cullen > -----Original Message----- > From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] > Sent: Sunday, June 16, 2002 11:19 PM > To: linac-eng@plato.aristotle.net > Subject: Varian 600C Mag fil power supply. > > > G'day, > Today we lost the bridge rectifier in the 600C Mag fil PS. > The first one lasted 6 yrs. The second 6 weeks. I notice > there are 6 or so in the spares kit. Does this mean these are > prone to failure?? Any comments anyone? > > Dave > > > > ********************************************************************** > ** This email and attachments have been scanned for content > and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email > in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board > ********************************************************************** > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 12 17:17:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17I9s2-0004KO-00; Wed, 12 Jun 2002 17:17:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 484801112FA; Mon, 17 Jun 2002 18:17:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA01483 for linac-eng-list; Mon, 17 Jun 2002 09:54:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwmail.harthosp.org (gwmail.harthosp.org [199.231.29.249]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA01479 for ; Mon, 17 Jun 2002 09:54:39 -0500 (CDT) Received: from HHCC-MTA by gwmail.harthosp.org with Novell_GroupWise; Mon, 17 Jun 2002 10:51:19 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Mon, 17 Jun 2002 10:51:01 -0400 From: "Robert Lindeyer" To: Subject: Clinac 4 for sale Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_D884E577.2E4F462C" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 17 Jun 2002 10:51:01 -0400 From: "Robert Lindeyer" To: Subject: Clinac 4 for sale Content-Type: multipart/mixed; boundary="=_D884E577.2E4F462C" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_D884E577.2E4F462C Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Hartford Hospital, Hartford Connecticut, USA has a Varian Clinac 4/80 for sale. S/N 189 installed in 1975 and run continuously. It is in very good condition. The unit comes with: Table extender Spine Board with Mylar sheet CTM ( a precursor to RMS ) Block Tray Extended Block Tray Wedges Limited parts Service Manual This machine has been on a Varian service contract since its purchase. Has been well maintained. Has had all mandatary a modifications installed . Is in good working order. (the department workhorse). This unit will be de-installed once a new linac is installed and accepted, approximately October/November 2002. Please send your inquiries and offers directly to me at rlindey@harthosp.org Robert Lindeyer Clinical Engineer Radiation Oncology Hartford Hospital 80 Seymour St POBox 5037 Hartford, CT 06102-5037 860-545-4346 rlindey@harthosp.org --=_D884E577.2E4F462C Content-Type: text/plain Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Robert Lindeyer.vcf" BEGIN:VCARD VERSION:2.1 X-GWTYPE:USER FN:Lindeyer, Robert TEL;WORK:545-4346 ORG:;Medical Physics TEL;PREF;FAX:545-1500 EMAIL;WORK;PREF;NGW:Rlindey.GWPO301.HHCC_2 N:Lindeyer;Robert TITLE:Engineer END:VCARD --=_D884E577.2E4F462C-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jun 13 09:25:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17IOye-0006uu-00; Thu, 13 Jun 2002 09:25:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6A8F61112F9; Tue, 18 Jun 2002 10:25:26 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA25932 for linac-eng-list; Tue, 18 Jun 2002 02:06:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.adelaideradiotherapycentre.com.au ([203.47.239.113]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id CAA25928 for ; Tue, 18 Jun 2002 02:06:15 -0500 (CDT) Received: from akovendy (AZK [192.2.1.71]) by mail.adelaideradiotherapycentre.com.au with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2655.55) id M7KP1B4S; Tue, 18 Jun 2002 16:36:33 +0930 Message-ID: <009b01c21696$d4fab1e0$470102c0@adelaideradiotherapycentre.com.au> From: "a kovendy" To: "linac engineering list" Subject: linac engineer, South Australia Date: Tue, 18 Jun 2002 16:37:34 +0930 Organization: ARC MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "a kovendy" To: "linac engineering list" Subject: linac engineer, South Australia Date: Tue, 18 Jun 2002 16:37:34 +0930 Organization: ARC Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Engineering Position - Adelaide Radiotherapy Centre The ARC, a private radiation oncology practice based in Adelaide, South Australia requires a linac service engineer to join the physics, engineering & IT support group. The practice is equipped with 5 Siemens linear accelerators, 2 Varian Ximatron simulators and a Philips RT-100 superficial x-ray unit located over two clinical sites - one in the CBD and the other in a southern area. Duties will involve maintenance, diagnostics and repair of linacs, simulators and other computer equipment, and participation in other development projects. Flexibility in work hours and the ability to work with minimal supervision and are essential. Candidates should have at least 3 years experience servicing radiotherapy equipment - experience with Siemens linacs would be an advantage. Good communication skills are essential. A knowledge of Unix and/or Windows NT administration would also be desirable but not essential. An above-award salary package and assistance with relocation will be offered to the suitable candidate, together with in-house/factory training where necessary. Applicants should forward a curriculum vitae with the names and contact details of two referees to: Mr. Craig Stevens Practice Manager Adelaide Radiotherapy Centre 352 South Terrace, Adelaide South Australia 5000 email: cstevens@adelaideradiotherapycentre.com.au For additional details, please contact Andrew Kovendy, Chief Physicist at: akovendy@adelaideradiotherapycentre.com.au Applications close Friday July 19th 2002. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 18 16:25:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17KJvE-0004sb-00; Tue, 18 Jun 2002 16:25:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 095A01112FB; Tue, 18 Jun 2002 17:25:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA03201 for linac-eng-list; Tue, 18 Jun 2002 08:57:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA03197 for ; Tue, 18 Jun 2002 08:57:47 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id <2ZZZZKTD>; Tue, 18 Jun 2002 09:57:11 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E103DFFAF2@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: Varian 600C Mag fil power supply. Date: Tue, 18 Jun 2002 09:57:02 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Dave Pinchin'" , linac-eng@plato.aristotle.net Subject: RE: Varian 600C Mag fil power supply. Date: Tue, 18 Jun 2002 09:57:02 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk The early version of the rectifier was replaced with a heavier duty one by Varian. Before that, there were quite few failures on our 91 600c. I believe there was a CTB on it, which you should be able to find at their site. Jerry > -----Original Message----- > From: Dave Pinchin [SMTP:Dave.Pinchin@cdhb.govt.nz] > Sent: Sunday, June 16, 2002 11:19 PM > To: linac-eng@plato.aristotle.net > Subject: Varian 600C Mag fil power supply. > > G'day, > Today we lost the bridge rectifier in the 600C Mag fil PS. The first one > lasted 6 yrs. The second 6 weeks. > I notice there are 6 or so in the spares kit. Does this mean these are > prone to failure?? > Any comments anyone? > > Dave > > > > ********************************************************************** > ** This email and attachments have been scanned for content and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board > ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 21 02:05:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17LBvV-0004aT-00; Fri, 21 Jun 2002 02:05:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C89721112FC; Fri, 21 Jun 2002 03:04:46 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id SAA00610 for linac-eng-list; Thu, 20 Jun 2002 18:44:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gondor.dpa.act.gov.au (gondor.dpa.act.gov.au [136.153.2.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA00604 for ; Thu, 20 Jun 2002 18:44:19 -0500 (CDT) Received: (from smap@localhost) by gondor.dpa.act.gov.au (8.11.1/8.11.1) id g5KNiAC28468 for ; Fri, 21 Jun 2002 09:44:10 +1000 (EST) Received: from unknown(10.226.2.7) by gondor via smap (V5.5) id xmaa28427; Fri, 21 Jun 02 09:44:04 +1000 Received: by cal007.dpa.act.gov.au with Internet Mail Service (5.5.2653.19) id ; Fri, 21 Jun 2002 09:44:03 +1000 Message-ID: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D20@cal036.act.gov.au> From: "Caunt, Peter" To: "'Linac Eng'" Subject: Varian water temperature controllers Date: Fri, 21 Jun 2002 09:44:02 +1000 X-MS-TNEF-Correlator: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D20@cal036.act.gov.au> MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/mixed; boundary="----_=_NextPart_000_01C218B4.5B3DC570" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Caunt, Peter" To: "'Linac Eng'" Subject: Varian water temperature controllers Date: Fri, 21 Jun 2002 09:44:02 +1000 X-MS-TNEF-Correlator: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D20@cal036.act.gov.au> Content-Type: multipart/mixed; boundary="----_=_NextPart_000_01C218B4.5B3DC570" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_000_01C218B4.5B3DC570 Content-Type: text/plain; charset="iso-8859-1" Dear Members, Chased this one down recently and thought the effort is worth sharing. Recently attended to the failure (leakage) of the hydraulic actuator valve body and subsequent jamming of actuator causing machine overtemp on a 2100CD. In observing the condition of the valve body which had become pitted over time I contacted the OEM, Invensys Building Systems, and found off the shelf availability for replacement valve bodies, specifically constructed for the corrosive nature of some coolants. This OEM is internationally represented and can supply ; the 120v actuator MPS5210-0-0-3 and VB9313-000-4-6 plus AV600 linkage kit at a considerable saving to standard spare parts pricing. If you find yourself wandering down this path, I think the cost of a call is well worth it. Regards, Peter Caunt Radiation Oncology Canberra Australia. ------_=_NextPart_000_01C218B4.5B3DC570 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 ------_=_NextPart_000_01C218B4.5B3DC570-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 21 04:24:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17LE63-0004im-00; Fri, 21 Jun 2002 04:24:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0F7FE1112FC; Fri, 21 Jun 2002 05:23:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA03348 for linac-eng-list; Thu, 20 Jun 2002 21:02:52 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA03342 for ; Thu, 20 Jun 2002 21:02:44 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id NAA12769 for ; Fri, 21 Jun 2002 13:42:28 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 21 Jun 2002 14:05:26 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 21 Jun 2002 14:01:41 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 21 Jun 2002 14:01:28 +1200 From: "Dave Pinchin" To: Subject: need tubeless RT100 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id VAA03343 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 21 Jun 2002 14:01:28 +1200 From: "Dave Pinchin" To: Subject: need tubeless RT100 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id VAA03343 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day list, Had a really funny request the other day. It appears a vet in town here has a dead RT100. One of our Xray fixers went on site and found the unit has a dead HT tank. We dropped the tube onto our box here at the hosp and it worked real well. So, I'm after a RT100 HT box. The closer to NZ the better. Thanks. Dave. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 21 17:15:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17LQ8V-0003Wa-00; Fri, 21 Jun 2002 17:15:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D2C2E1112FB; Fri, 21 Jun 2002 18:15:00 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA17843 for linac-eng-list; Fri, 21 Jun 2002 09:25:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA17836 for ; Fri, 21 Jun 2002 09:25:33 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g5LEOuq21683; Fri, 21 Jun 2002 10:24:56 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256BDF.004EEEAF ; Fri, 21 Jun 2002 10:22:09 -0400 X-Lotus-FromDomain: LRCC To: "Caunt, Peter" Cc: "'Linac Eng'" Message-ID: <85256BDF.004EECA5.00@mail.lrcc.on.ca> Date: Fri, 21 Jun 2002 10:22:02 -0400 Subject: Re: Varian water temperature controllers Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Caunt, Peter" Cc: "'Linac Eng'" Date: Fri, 21 Jun 2002 10:22:02 -0400 Subject: Re: Varian water temperature controllers Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello Peter: The pressure of the water going through the valve has a lot to do with how fast the valve becomes pitted. I believe that the 2 linacs that we have that use city water in the cooling loop are down around 8psi, the other linacs we have are on chilled water loops from the hospital and I am 90% sure that we have not had to change on of those in 6 years. Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 21 20:33:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17LTDu-0003jf-00; Fri, 21 Jun 2002 20:33:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4FD0E1112FB; Fri, 21 Jun 2002 21:32:46 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA22604 for linac-eng-list; Fri, 21 Jun 2002 13:04:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from webshield.tmh.tmc.edu (webshield.tmh.tmc.edu [128.249.171.72]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA22594 for ; Fri, 21 Jun 2002 13:04:55 -0500 (CDT) Received: FROM exch2.tmh.tmc.edu BY webshield.tmh.tmc.edu ; Fri Jun 21 13:04:57 2002 -0500 Received: by exch2.tmh.tmc.edu with Internet Mail Service (5.5.2653.19) id ; Fri, 21 Jun 2002 13:04:44 -0500 Message-ID: From: "Segovia, Luis E." To: Robert Lindeyer , linac-eng@plato.aristotle.net Subject: How to subscribe Date: Fri, 21 Jun 2002 13:04:43 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Segovia, Luis E." To: Robert Lindeyer , linac-eng@plato.aristotle.net Subject: How to subscribe Date: Fri, 21 Jun 2002 13:04:43 -0500 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello list, I friend of mine asked me for instructioncs to join the list; however I can not find them in my files. Would anyone be kind enough to post the instructions? Thanks Luis Segovia 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Jun 22 23:49:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Lskp-00059l-00; Sat, 22 Jun 2002 23:49:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F41EE1112FB; Sun, 23 Jun 2002 00:48:12 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA26695 for linac-eng-list; Sat, 22 Jun 2002 16:27:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sccrmhc02.attbi.com (sccrmhc02.attbi.com [204.127.202.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA26691 for ; Sat, 22 Jun 2002 16:27:56 -0500 (CDT) Received: from c1784162a ([12.249.244.86]) by sccrmhc02.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020622212726.RKFS1547.sccrmhc02.attbi.com@c1784162a>; Sat, 22 Jun 2002 21:27:26 +0000 Message-ID: <002101c21a34$3d25bc60$0100a8c0@mshome.net> From: "Rich Kimball" To: "Linac Engineer List" Cc: "Kevin Real" Subject: 2100 EX readout display Date: Sat, 22 Jun 2002 16:31:58 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01C21A0A.540C90E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Linac Engineer List" Cc: "Kevin Real" Subject: 2100 EX readout display Date: Sat, 22 Jun 2002 16:31:58 -0500 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01C21A0A.540C90E0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_001E_01C21A0A.540C90E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We have a 2100EX readout display that changes state at random and goes = away by itself with what likes an outline graphic of the tray adapter = and at the top of the display, a round ball with a label "ODI". Anyone explain what this is or why it is occurring? I have jpg photos = to explain if anyone would care to see them. Thanks, Rich Kimball ------=_NextPart_000_001E_01C21A0A.540C90E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    We have a 2100EX readout display that = changes state=20 at random and goes away by itself with what likes an outline graphic of = the tray=20 adapter and at the top of the display, a round ball with a label=20 "ODI".
    Anyone explain what this is or why it = is=20 occurring?  I have jpg photos to explain if anyone would care to = see=20 them.
     
    Thanks,
    Rich Kimball
    ------=_NextPart_000_001E_01C21A0A.540C90E0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 01:41:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MGyx-0007FM-00; Mon, 24 Jun 2002 01:41:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BD4671112F7; Mon, 24 Jun 2002 02:40:11 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id SAA22092 for linac-eng-list; Sun, 23 Jun 2002 18:15:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from marshal.wahs.health.nsw.gov.au (mail.wahs.nsw.gov.au [203.202.169.229]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA22088 for ; Sun, 23 Jun 2002 18:15:39 -0500 (CDT) Received: from EMPIRE (not verified[10.60.95.245]) by marshal.wahs.health.nsw.gov.au with MailMarshal (4,2,0,0) id ; Mon, 24 Jun 2002 09:17:48 +1000 Received: from INET-DOM-Message_Server by EMPIRE with Novell_GroupWise; Mon, 24 Jun 2002 09:14:48 +1000 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Mon, 24 Jun 2002 09:14:39 +1000 From: "Nicholas Collett" To: Subject: Re: 2100 EX readout display Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA22089 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 24 Jun 2002 09:14:39 +1000 From: "Nicholas Collett" To: Subject: Re: 2100 EX readout display Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA22089 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Rich, The display on the gantry can be swopped between the normal screen and the one you describe by pressing 'Ctr II' (the middle button in the top row) on the hand pendant. I am not sure what it's use is but that is how you get back to the other display. Nick Collett ###################################################################### Attention: This message is intended for the addresses named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of Wentworth Area Health Service. This e-mail has been scanned for viruses ###################################################################### 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 03:10:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MINe-0007Ip-00; Mon, 24 Jun 2002 03:10:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0D45C1112F7; Mon, 24 Jun 2002 04:09:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA24043 for linac-eng-list; Sun, 23 Jun 2002 19:55:20 -0500 (CDT) Received: from smtpzilla2.xs4all.nl (smtpzilla2.xs4all.nl [194.109.127.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA24039 for ; Sun, 23 Jun 2002 19:55:17 -0500 (CDT) Received: from zirkonia.xs4all.nl (zirkonia.xs4all.nl [213.84.169.193]) by smtpzilla2.xs4all.nl (8.12.0/8.12.0) with ESMTP id g5O0tFH6099975 for ; Mon, 24 Jun 2002 02:55:16 +0200 (CEST) Received: from pop3.xs4all.nl [194.109.6.55] by zirkonia.xs4all.nl [] with DomainPOP (MDaemon.PRO.v5.0.7.R) for ; Mon, 24 Jun 2002 02:49:11 +0200 X-XS4ALL-To: Received: from mxzilla1.xs4all.nl (mxzilla1.xs4all.nl [194.109.6.54]) by maildrop5.xs4all.nl (8.11.6/8.11.1) with ESMTP id g5O0idO62336 for ; Mon, 24 Jun 2002 02:44:39 +0200 (CEST) (envelope-from owner-linac-eng@plato.aristotle.net) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by mxzilla1.xs4all.nl (8.12.3/8.12.3) with ESMTP id g5O0icGl013692 for ; Mon, 24 Jun 2002 02:44:39 +0200 (CEST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id SAA22092 for linac-eng-list; Sun, 23 Jun 2002 18:15:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from marshal.wahs.health.nsw.gov.au (mail.wahs.nsw.gov.au [203.202.169.229]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA22088 for ; Sun, 23 Jun 2002 18:15:39 -0500 (CDT) Received: from EMPIRE (not verified[10.60.95.245]) by marshal.wahs.health.nsw.gov.au with MailMarshal (4,2,0,0) id ; Mon, 24 Jun 2002 09:17:48 +1000 Received: from INET-DOM-Message_Server by EMPIRE with Novell_GroupWise; Mon, 24 Jun 2002 09:14:48 +1000 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Mon, 24 Jun 2002 09:14:39 +1000 From: "Nicholas Collett" To: Subject: Re: 2100 EX readout display Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA22089 X-MDRemoteIP: 194.109.6.55 X-MDRcpt-To: linac-eng@plato.aristotle.net X-MDaemon-Deliver-To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-XS4ALL-To: X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 24 Jun 2002 09:14:39 +1000 From: "Nicholas Collett" To: Subject: Re: 2100 EX readout display Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA22089 X-MDRemoteIP: 194.109.6.55 X-MDRcpt-To: linac-eng@plato.aristotle.net X-MDaemon-Deliver-To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Rich, The display on the gantry can be swopped between the normal screen and the one you describe by pressing 'Ctr II' (the middle button in the top row) on the hand pendant. I am not sure what it's use is but that is how you get back to the other display. Nick Collett ###################################################################### Attention: This message is intended for the addresses named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of Wentworth Area Health Service. This e-mail has been scanned for viruses ###################################################################### 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 03:22:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MIYs-0007Iv-00; Mon, 24 Jun 2002 03:22:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 49DB61112F7; Mon, 24 Jun 2002 04:21:21 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id UAA24291 for linac-eng-list; Sun, 23 Jun 2002 20:02:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sccrmhc03.attbi.com (sccrmhc03.attbi.com [204.127.202.63]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA24287 for ; Sun, 23 Jun 2002 20:02:56 -0500 (CDT) Received: from c1784162a ([12.249.244.86]) by sccrmhc03.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020624010225.TTVR20219.sccrmhc03.attbi.com@c1784162a>; Mon, 24 Jun 2002 01:02:25 +0000 Message-ID: <004001c21b1b$5b75a9e0$0100a8c0@mshome.net> From: "Rich Kimball" To: "Nicholas Collett" , References: Subject: Re: 2100 EX readout display Date: Sun, 23 Jun 2002 20:06:22 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Nicholas Collett" , Subject: Re: 2100 EX readout display Date: Sun, 23 Jun 2002 20:06:22 -0500 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Nick, Thanks! Another engineer mentioned this CTR II button too in some mail! I too am curious what it's use is. Rich > Rich, > > The display on the gantry can be swopped between the normal screen and the one you describe by pressing 'Ctr II' (the middle button in the top row) on the hand pendant. I am not sure what it's use is but that is how you get back to the other display. > > Nick Collett > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 08:38:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MNU9-0008FO-00; Mon, 24 Jun 2002 08:38:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 611321112F7; Mon, 24 Jun 2002 09:36:45 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id BAA00386 for linac-eng-list; Mon, 24 Jun 2002 01:20:10 -0500 (CDT) Received: from smtpzilla3.xs4all.nl (smtpzilla3.xs4all.nl [194.109.127.139]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA00382 for ; Mon, 24 Jun 2002 01:20:07 -0500 (CDT) Received: from zirkonia.xs4all.nl (zirkonia.xs4all.nl [213.84.169.193]) by smtpzilla3.xs4all.nl (8.12.0/8.12.0) with ESMTP id g5O6K2hu053610 for ; Mon, 24 Jun 2002 08:20:03 +0200 (CEST) Received: from pop3.xs4all.nl [194.109.6.55] by zirkonia.xs4all.nl [] with DomainPOP (MDaemon.PRO.v5.0.7.R) for ; Mon, 24 Jun 2002 08:18:30 +0200 X-XS4ALL-To: Received: from mxzilla3.xs4all.nl (mxzilla3.xs4all.nl [194.109.6.49]) by maildrop5.xs4all.nl (8.11.6/8.11.1) with ESMTP id g5O27uO87353 for ; Mon, 24 Jun 2002 04:07:56 +0200 (CEST) (envelope-from owner-linac-eng@plato.aristotle.net) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by mxzilla3.xs4all.nl (8.12.3/8.12.3) with ESMTP id g5O27tR8028879 for ; Mon, 24 Jun 2002 04:07:56 +0200 (CEST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id UAA24291 for linac-eng-list; Sun, 23 Jun 2002 20:02:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sccrmhc03.attbi.com (sccrmhc03.attbi.com [204.127.202.63]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA24287 for ; Sun, 23 Jun 2002 20:02:56 -0500 (CDT) Received: from c1784162a ([12.249.244.86]) by sccrmhc03.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020624010225.TTVR20219.sccrmhc03.attbi.com@c1784162a>; Mon, 24 Jun 2002 01:02:25 +0000 Message-ID: <004001c21b1b$5b75a9e0$0100a8c0@mshome.net> From: "Rich Kimball" To: "Nicholas Collett" , References: Subject: Re: 2100 EX readout display Date: Sun, 23 Jun 2002 20:06:22 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-MDRemoteIP: 194.109.6.55 X-MDRcpt-To: linac-eng@plato.aristotle.net X-MDaemon-Deliver-To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-XS4ALL-To: X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Nicholas Collett" , Subject: Re: 2100 EX readout display Date: Sun, 23 Jun 2002 20:06:22 -0500 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-MDRemoteIP: 194.109.6.55 X-MDRcpt-To: linac-eng@plato.aristotle.net X-MDaemon-Deliver-To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Nick, Thanks! Another engineer mentioned this CTR II button too in some mail! I too am curious what it's use is. Rich > Rich, > > The display on the gantry can be swopped between the normal screen and the one you describe by pressing 'Ctr II' (the middle button in the top row) on the hand pendant. I am not sure what it's use is but that is how you get back to the other display. > > Nick Collett > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 10:18:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MP2y-0000mt-00; Mon, 24 Jun 2002 10:18:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F38E1112F7; Mon, 24 Jun 2002 11:16:48 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id CAA02003 for linac-eng-list; Mon, 24 Jun 2002 02:59:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from SWSAHSINT.swsahs.nsw.gov.au ([203.5.80.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA01999 for ; Mon, 24 Jun 2002 02:59:53 -0500 (CDT) Received: by SWSAHSINT.swsahs.nsw.gov.au; (8.8.8/1.3/10May95) id RAA04985; Mon, 24 Jun 2002 17:59:22 +1000 (EST) Received: from somewhere by smtpxd Received: from somewhere by smtpxd Message-ID: From: Geoffrey Ticehurst To: linac-eng@plato.aristotle.net Cc: Glen Burt Subject: Digital Subtraction Angiography Unit for sale Date: Mon, 24 Jun 2002 17:59:15 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/mixed; boundary="------------InterScan_NT_MIME_Boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Geoffrey Ticehurst To: linac-eng@plato.aristotle.net Cc: Glen Burt Subject: Digital Subtraction Angiography Unit for sale Date: Mon, 24 Jun 2002 17:59:15 +1000 Content-Type: multipart/mixed; boundary="------------InterScan_NT_MIME_Boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------InterScan_NT_MIME_Boundary Content-Type: text/plain; charset="iso-8859-1" Liverpool Hospital, Liverpool, New South Wales, Australia has a Philips Intregris C2000 for sale. Installed in 1992 and had medium use. It is in very good condition. The unit comes with: Table Ceiling mounting for 'C' arm and dual monitors 36cm Image Intensifier with 3 fields, 36,24,16. Water cooled, Philips 501-10, 0.3mm:1.0mm.X-Ray tube. (Installed March.98) 100KW X-Ray generator, Philips Super 100 CP Full set of peripheral filters Complete operators console with dual monitors for x-ray and digital image control Service Manuals This machine: * Has been on a Philips service contract since its purchase. * Has been well maintained. * Has had all mandatary and safety modifications installed. * Is in good working order. * EPA x-ray compliance report Sept.2001 This unit is available now and can be de-installed July 2002. Please send your inquiries and offers directly to me at Geoffrey.Ticehurst@swsahs.nsw.gov.au Geoff Ticehurst Biomedical Engineer Liverpool Health Service Liverpool, New South Wales. Australia --------------InterScan_NT_MIME_Boundary Content-Type: text/plain; name="InterScan_Disclaimer.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="InterScan_Disclaimer.txt" ***** IMPORTANT NOTICE ***** The opinions and views expressed in this e-mail are those of the sender and may not necessarily represent the management of the South Western Sydney Area Health Service. The information contained within this e-mail is intended for the named recipients only and it may contain confidential and/or privileged information. If you have received this message in error, you must not copy, duplicate, forward, print or otherwise distribute any information contained herein, but must ensure that this e-mail is permanently deleted and advise the sender immediately. --------------InterScan_NT_MIME_Boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 14:26:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MSvm-0003Su-00; Mon, 24 Jun 2002 14:26:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5008B1112F5; Mon, 24 Jun 2002 15:25:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA06176 for linac-eng-list; Mon, 24 Jun 2002 07:06:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq04.netvigator.com (imsmq04.netvigator.com [208.167.231.40]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA06172 for ; Mon, 24 Jun 2002 07:06:35 -0500 (CDT) Received: (qmail 11877 invoked from network); 24 Jun 2002 12:06:19 -0000 Received: from pcd439067.netvigator.com (HELO yeung) (203.218.229.67) by imsmq04.netvigator.com with SMTP; 24 Jun 2002 12:06:19 -0000 Message-ID: <003c01c21b76$fd68f440$5fccfea9@yeung> From: "k yeung" To: Subject: Re: Varian digital gun controller Date: Mon, 24 Jun 2002 20:02:18 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0039_01C21BBA.0B3FE900" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Varian digital gun controller Date: Mon, 24 Jun 2002 20:02:18 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0039_01C21BBA.0B3FE900" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0039_01C21BBA.0B3FE900 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Could anyone advise under what conditions we need to manual process grid = voltage/HV/Fil V and initialize gun deck's memory? It seems "set grid voltage/HV/FIL V" can do their jobs quite well. Thanks in advance. Kim Yeung ------=_NextPart_000_0039_01C21BBA.0B3FE900 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
    Could anyone advise under what conditions we need to = manual=20 process grid voltage/HV/Fil V and initialize gun deck's = memory?
     
    It seems "set grid voltage/HV/FIL V" can do their = jobs quite=20 well.
     
    Thanks in advance.
     
     
    Kim Yeung
    ------=_NextPart_000_0039_01C21BBA.0B3FE900-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 14:47:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MTFZ-0003fm-00; Mon, 24 Jun 2002 14:47:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3424E1112FC; Mon, 24 Jun 2002 15:46:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA06480 for linac-eng-list; Mon, 24 Jun 2002 07:23:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA06476 for ; Mon, 24 Jun 2002 07:23:28 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KJAW7669IO008G2I@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Mon, 24 Jun 2002 08:22:58 -0400 (EDT) Date: Mon, 24 Jun 2002 08:19:17 -0400 From: "Peter E. Vitali" Subject: Re: 2100 EX readout display To: Rich Kimball Cc: Linac Engineer List , Kevin Real Message-id: <3D170E3E.4D25AE4B@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <002101c21a34$3d25bc60$0100a8c0@mshome.net> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 24 Jun 2002 08:19:17 -0400 From: "Peter E. Vitali" Subject: Re: 2100 EX readout display To: Rich Kimball Cc: Linac Engineer List , Kevin Real Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Rich: If you have the Varian C-Series Clinac Clinical User Guide PN 1102903-03 7/99 Starting on Page 1-1, Introduction, page 1-4 to 1-9, Support for EDW Screen on Enhanced Gantry Display, you will find the answer to your question. There should have been two copies of all the manuals delivered with the machine. Pete Vitali 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 17:25:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MVip-0005cp-00; Mon, 24 Jun 2002 17:25:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1CC261112F5; Mon, 24 Jun 2002 18:24:22 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA10403 for linac-eng-list; Mon, 24 Jun 2002 09:58:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from larch.cc.uic.edu (larch.cc.uic.edu [128.248.155.164]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA10395 for ; Mon, 24 Jun 2002 09:57:58 -0500 (CDT) Received: (qmail 16215 invoked from network); 24 Jun 2002 14:57:45 -0000 Received: from uimcc53.hospital.uic.edu (128.248.114.93) by larch.cc.uic.edu with SMTP; 24 Jun 2002 14:57:45 -0000 Received: by uimcc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 24 Jun 2002 10:00:37 -0500 Message-ID: From: "Bisevac, Simeon" To: "'Rich Kimball'" , Linac Engineer List Cc: Kevin Real Subject: RE: 2100 EX readout display Date: Mon, 24 Jun 2002 10:00:36 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bisevac, Simeon" To: "'Rich Kimball'" , Linac Engineer List Cc: Kevin Real Subject: RE: 2100 EX readout display Date: Mon, 24 Jun 2002 10:00:36 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hey Rich; Sounds like someone is accidently hitting the Ctr II switch on the hand control pendant. Its located on the top row and in the center of the hand pendant. Simeon -----Original Message----- From: Rich Kimball [mailto:richardkimball3@attbi.com] Sent: Saturday, June 22, 2002 4:32 PM To: Linac Engineer List Cc: Kevin Real Subject: 2100 EX readout display We have a 2100EX readout display that changes state at random and goes away by itself with what likes an outline graphic of the tray adapter and at the top of the display, a round ball with a label "ODI". Anyone explain what this is or why it is occurring? I have jpg photos to explain if anyone would care to see them. Thanks, Rich Kimball ****************************EMAIL DISCLAIMER****************************This e-mail and any files transmitted with it may be confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient or the individual responsible for delivering the e-mail to the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is strictly prohibited. If you have received this e-mail in error, please delete it and notify the sender or contact Health Information Management 312.996.3941. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 21:19:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MZMv-00064w-00; Mon, 24 Jun 2002 21:19:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D9F9A1112F7; Mon, 24 Jun 2002 22:17:58 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA16985 for linac-eng-list; Mon, 24 Jun 2002 13:28:33 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA16974 for ; Mon, 24 Jun 2002 13:28:25 -0500 (CDT) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA00962; Mon, 24 Jun 2002 13:24:32 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BE2.00623277 ; Mon, 24 Jun 2002 12:52:34 -0500 X-Lotus-FromDomain: MDACC To: "Rich Kimball" Cc: "Nicholas Collett" , linac-eng@plato.aristotle.net Message-ID: <86256BE2.00623022.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 24 Jun 2002 12:54:34 -0500 Subject: Re: 2100 EX readout display Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Rich Kimball" Cc: "Nicholas Collett" , linac-eng@plato.aristotle.net Date: Mon, 24 Jun 2002 12:54:34 -0500 Subject: Re: 2100 EX readout display Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk The CTR II refers to the Ximatron simulator, with a little jumper playing( or I think it is switches now) one can use a clinac pendant on the Ximatron and vice versa. CTR II is to auto center the Image Intensifier. Take care, eh. Ed Rymes Accel Tech III MDACC "Rich Kimball" on 06/23/2002 08:06:22 PM To: "Nicholas Collett" , linac-eng@plato.aristotle.net cc: (bcc: Edward Rymes/MDACC) Subject: Re: 2100 EX readout display Nick, Thanks! Another engineer mentioned this CTR II button too in some mail! I too am curious what it's use is. Rich > Rich, > > The display on the gantry can be swopped between the normal screen and the one you describe by pressing 'Ctr II' (the middle button in the top row) on the hand pendant. I am not sure what it's use is but that is how you get back to the other display. > > Nick Collett > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jun 24 21:20:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17MZNk-00065H-00; Mon, 24 Jun 2002 21:20:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 849181112F7; Mon, 24 Jun 2002 22:18:50 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA18042 for linac-eng-list; Mon, 24 Jun 2002 14:00:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA18038 for ; Mon, 24 Jun 2002 14:00:33 -0500 (CDT) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Mon, 24 Jun 2002 15:02:19 -0400 Message-ID: <1082075133C0D511AAC8000255F0072924C4ED@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Mon, 24 Jun 2002 15:02:09 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Mon, 24 Jun 2002 15:02:09 -0400 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello All, At some time in the far distant past I recall an FDA report which would list the reported problems and malfunctions of medical devices including linear acceloraters and simulators. Would anyone be able to inform me of how I can get this report sent to my facility as I feel there may be some good info available. Thank you, Bill Hughes 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 25 00:13:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Mc52-0006OG-00; Tue, 25 Jun 2002 00:13:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2756B1112F5; Tue, 25 Jun 2002 01:11:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA26039 for linac-eng-list; Mon, 24 Jun 2002 16:48:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.accuray.com (exchange.accuray.com [65.219.160.162]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA26035 for ; Mon, 24 Jun 2002 16:48:36 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Date: Mon, 24 Jun 2002 14:48:24 -0700 Message-ID: <634284F16B42C249B642E5AB43FD720B61531E@exchange.accuray.com> Thread-Index: AcIbuo88/bcNyRc1RTWV4qJKnGJ3sAADZ6cw From: "John Somers" To: "Hughes, William H." , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA26036 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Date: Mon, 24 Jun 2002 14:48:24 -0700 Thread-Index: AcIbuo88/bcNyRc1RTWV4qJKnGJ3sAADZ6cw From: "John Somers" To: "Hughes, William H." , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA26036 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Bill, this website may have what you're looking for. For everyone's info, via FDA's MedWatch, you can give or receive information related to the safety of medical devices. http://www.fda.gov/medwatch/index.html John Somers -----Original Message----- From: Hughes, William H. [mailto:WHughes@trcc.org] Sent: Monday, June 24, 2002 12:02 PM To: 'linac-eng@plato.aristotle.net' Subject: Hello All, At some time in the far distant past I recall an FDA report which would list the reported problems and malfunctions of medical devices including linear acceloraters and simulators. Would anyone be able to inform me of how I can get this report sent to my facility as I feel there may be some good info available. Thank you, Bill Hughes 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jun 25 21:36:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Mw7W-0005GK-00; Tue, 25 Jun 2002 21:36:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C7F021112F5; Tue, 25 Jun 2002 22:35:22 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA21946 for linac-eng-list; Tue, 25 Jun 2002 14:07:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA21942 for ; Tue, 25 Jun 2002 14:07:50 -0500 (CDT) Received: by xchange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Tue, 25 Jun 2002 12:07:57 -0700 Message-ID: From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: MD-2 Rotary Joint Date: Tue, 25 Jun 2002 12:07:56 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: MD-2 Rotary Joint Date: Tue, 25 Jun 2002 12:07:56 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All, I have a digital Mevatron that is leaking SF-6 at the rotary joint. I am wondering if anyone has rebuilt one of these rotary joints or knows anybody that can either rebuild this unit or supply a new one. Siemens price for a new one is not excessive by any means but if I can get one cheaper all the better. As always I appreciate the help this list provides. Good day to all. Dan Watters University Medical Center Tucson, Arizona 520-694-7404 > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 26 16:14:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17NDYi-0006SP-00; Wed, 26 Jun 2002 16:14:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 128F81112F3; Wed, 26 Jun 2002 17:12:26 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA12986 for linac-eng-list; Wed, 26 Jun 2002 08:36:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA12982 for ; Wed, 26 Jun 2002 08:36:56 -0500 (CDT) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id IAA21383 for ; Wed, 26 Jun 2002 08:33:14 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BE4.004A3E02 ; Wed, 26 Jun 2002 08:30:55 -0500 X-Lotus-FromDomain: MDACC To: linac-eng@plato.aristotle.net Message-ID: <86256BE4.004A3D07.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 26 Jun 2002 08:33:51 -0500 Subject: pulse tank/maggy loads Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: linac-eng@plato.aristotle.net Date: Wed, 26 Jun 2002 08:33:51 -0500 Subject: pulse tank/maggy loads Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Gentlemen, I need help putting together a set of maggy and pulse tank loads for our Varian 600C/D and 6EX Clinacs, and Siemens PRIMART, ME and MXE/6740 Mevatrons. I've used the loads before, but it's been awhile, and they were already assembled. The Varian machines have the new MG5349 maggies, and the Mevatrons use the 5349 and 5193. I've had some problems recently where the loads would have been very helpful. Thanks, Chad Fikes MD Anderson Cancer Center 713-792-3235 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 26 17:03:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17NEKL-0007u4-00; Wed, 26 Jun 2002 17:03:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 34E5C1112F3; Wed, 26 Jun 2002 18:01:39 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA15031 for linac-eng-list; Wed, 26 Jun 2002 09:42:11 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from carme.scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA15027 for ; Wed, 26 Jun 2002 09:42:09 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by carme.scf.sk.ca (Rockliffe SMTPRA 4.5.4) with SMTP id for ; Wed, 26 Jun 2002 08:44:48 -0600 Received: (from RPC035 [172.24.49.35]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002062608423111042 ; Wed, 26 Jun 2002 08:42:31 -0600 From: scot thiesson To: linac-eng@plato.aristotle.net, clfikes@mail.mdanderson.org Date: Wed, 26 Jun 2002 08:42:06 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <86256BE4.004A3D07.00@utm-notesob1.mdacc.tmc.edu> Message-Id: <05XVYSNIA8TRA8A9IYVQPTOTR94B8SN.3d19d2be@RPC035> Subject: Re: pulse tank/maggy loads MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: linac-eng@plato.aristotle.net, clfikes@mail.mdanderson.org Date: Wed, 26 Jun 2002 08:42:06 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: <86256BE4.004A3D07.00@utm-notesob1.mdacc.tmc.edu> Subject: Re: pulse tank/maggy loads Content-Type: text/plain; charset="us-ascii" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Chad, Check out http://www.ohmweve.com/index.htm It's where we got our dummy loads for out Mevatrons. They would probably know what you need. Scot Thiesson Senior Physics Technician Allan Blair Cancer Centre Regina Sask. Canada 6/26/2002 7:33:51 AM, clfikes@mail.mdanderson.org wrote: > > >Gentlemen, > >I need help putting together a set of maggy and pulse tank loads for our Varian >600C/D and 6EX Clinacs, and Siemens PRIMART, ME and MXE/6740 Mevatrons. I've >used the loads before, but it's been awhile, and they were already assembled. >The Varian machines have the new MG5349 maggies, and the Mevatrons use the 5349 >and 5193. I've had some problems recently where the loads would have been very >helpful. > >Thanks, >Chad Fikes >MD Anderson Cancer Center >713-792-3235 > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jun 26 20:32:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17NHaN-0000lA-00; Wed, 26 Jun 2002 20:32:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CA1201112F3; Wed, 26 Jun 2002 21:30:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA21381 for linac-eng-list; Wed, 26 Jun 2002 13:08:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fl-mta06.durocom.com (fl-mta06.durocom.com [216.53.195.248]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA21377 for ; Wed, 26 Jun 2002 13:08:29 -0500 (CDT) Received: from ieee.org ([216.97.193.233]) by fl-mta06.durocom.com with ESMTP id <20020626180828.YTTM24790.fl-mta06@ieee.org> for ; Wed, 26 Jun 2002 14:08:28 -0400 Message-ID: <3D1A031A.CA0A4B23@ieee.org> Date: Wed, 26 Jun 2002 14:08:26 -0400 From: DP X-Mailer: Mozilla 4.73 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Linac Engineers Subject: MLC's Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 26 Jun 2002 14:08:26 -0400 From: DP X-Accept-Language: en To: Linac Engineers Subject: MLC's Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk A question for MLC users :- How exactly are leaf positions set and monitored in the various systems, TV cameras, micro switches, optical switches, linear/rotary encoders? Any information will be gratefully appreciated. -- Darrell O. Poole Senior Physicist M.D. Anderson Cancer Center Orlando 407.628.0991 407.721.2658 CELL 407.628.8463 FAX dopoole@ieee.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 09:41:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17NqOC-0002yq-00; Fri, 28 Jun 2002 09:41:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 56CBF1112F3; Fri, 28 Jun 2002 09:45:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA02936 for linac-eng-list; Thu, 27 Jun 2002 15:43:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA02932 for ; Thu, 27 Jun 2002 15:42:43 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA31575 for ; Fri, 28 Jun 2002 08:21:44 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 28 Jun 2002 08:45:19 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 28 Jun 2002 08:41:34 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 28 Jun 2002 08:41:17 +1200 From: "Dave Pinchin" To: Subject: Irony of ironies. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA02933 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 28 Jun 2002 08:41:17 +1200 From: "Dave Pinchin" To: Subject: Irony of ironies. Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA02933 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day list, We have a very sad RT100 tube and a local vet has a very sad RT100 controller. We were toying with the idea of combining our bits to make a good unit. My (tame) physicist suggested we offer to do his cats and dogs. But there is a legal problem there. We cannot bring animals on site for treatment. Our option....... Send our patients to the vet. PS if anyone has a RT100 box with no tube our local vet would love to hear from you. :) Dave. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 10:23:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Nr2e-0003QP-00; Fri, 28 Jun 2002 10:23:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4A1231112F3; Fri, 28 Jun 2002 10:27:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA19629 for linac-eng-list; Thu, 27 Jun 2002 10:47:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq04.netvigator.com (imsmq04.netvigator.com [208.167.231.40]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA19625 for ; Thu, 27 Jun 2002 10:47:56 -0500 (CDT) Received: (qmail 22100 invoked from network); 27 Jun 2002 15:47:38 -0000 Received: from pcd628140.netvigator.com (HELO yeung) (218.102.160.140) by imsmq04.netvigator.com with SMTP; 27 Jun 2002 15:47:38 -0000 Message-ID: <001c01c21df1$649b0500$6aa7fea9@yeung> From: "k yeung" To: Subject: Re: Varian digital gun controller Date: Thu, 27 Jun 2002 23:43:32 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01C21E34.7251EEA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "k yeung" To: Subject: Re: Varian digital gun controller Date: Thu, 27 Jun 2002 23:43:32 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01C21E34.7251EEA0" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0019_01C21E34.7251EEA0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 2300CD, Version 6.1, Digital Gun Controller Could anyone advise under what conditions we need to "manual process = digital gun grid voltage/HV/Fil V" and "initialize gun deck's memory"? It seems "set grid voltage/HV/FIL V" can do their jobs quite well. Thanks in advance. Kim Yeung ------=_NextPart_000_0019_01C21E34.7251EEA0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
        Varian 2300CD, Version 6.1, Digital Gun = Controller
     
    Could anyone advise under what conditions we need to = "manual=20 process digital gun grid voltage/HV/Fil V" and "initialize gun deck's=20 memory"?
     
    It seems "set grid voltage/HV/FIL V" can do their = jobs quite=20 well.
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0019_01C21E34.7251EEA0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 11:02:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Nred-0003wP-00; Fri, 28 Jun 2002 11:02:59 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0FE6A1112F7; Fri, 28 Jun 2002 11:06:20 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA16769 for linac-eng-list; Thu, 27 Jun 2002 09:01:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA16765 for ; Thu, 27 Jun 2002 09:01:11 -0500 (CDT) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Thu, 27 Jun 2002 10:01:09 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C21DE3.167E9C89" Subject: FW: Treatment Room Cameras. X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 27 Jun 2002 10:01:09 -0400 Message-ID: X-MS-TNEF-Correlator: Thread-Topic: Treatment Room Cameras. Thread-Index: AcId2xrsJuMxRGM6QXqO5GAo2xcvPgAABXZQAAHgADA= From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 27 Jun 2002 14:01:09.0438 (UTC) FILETIME=[16A355E0:01C21DE3] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C21DE3.167E9C89" Subject: FW: Treatment Room Cameras. X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Thu, 27 Jun 2002 10:01:09 -0400 X-MS-TNEF-Correlator: Thread-Topic: Treatment Room Cameras. Thread-Index: AcId2xrsJuMxRGM6QXqO5GAo2xcvPgAABXZQAAHgADA= From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 27 Jun 2002 14:01:09.0438 (UTC) FILETIME=[16A355E0:01C21DE3] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C21DE3.167E9C89 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ward, We have two cameras in our 2300 room, one is fixed to view the treatment = area, and the other is a full pan and tilt auto focus (we do TBI's in = the room occasionally.) They are located on both of the side walls of = the vault across from each other. As a former therapist I'd like a = camera that looks from the foot of the table to the gantry, then you = could watch during the rotation of the gantry (especially for IMRT = setups) -----Original Message----- From: Ward Dixon [mailto:Dixwa@reg2.health.nb.ca] Sent: Thursday, June 27, 2002 7:56 AM To: Linac-eng@plato.aristotle.net Subject: Treatment Room Cameras. Good day all, The Head Therapist in our department wants to get the cameras set up, = in our 2100c/d room, for IMRT. He and I are unsure of the best places to = install new cameras. We are wondering if anyone out there would give us = some input as to how your rooms are set up with multiple cameras? How = many cameras do you use? Have you found optimum locations for the = cameras? Do you have them fed to multiple monitors at the consol or are = they on one monitor with a split screen. Any input would be appreciated. Thanks,=20 Ward Dixon Therapeutic Physics Saint John Regional Hospital Saint John, New Brunswick. ------_=_NextPart_001_01C21DE3.167E9C89 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 eJ8+IgoOAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEgAEAHAAAAEZXOiBUcmVhdG1lbnQgUm9v bSBDYW1lcmFzLgByCQEFgAMADgAAANIHBgAbAAoAAQAJAAQAEgEBCAAFAAQAAAAAAAAAAAABCQAE AAIAAAAAAAAAASCAAwAOAAAA0gcGABsACgABAAkABAASAQEJgAEAIQAAAEY3NzhDNEE0NzUwRjk1 NDBBODcxREM3NTRENjRBNTFEAC0HAQOQBgCwCQAAMwAAAAsAAgABAAAAAwAmAAAAAAADAC4AAAAA AAMANgAAAAAAQAA5AImcfhbjHcIBHgA9AAEAAAAFAAAARlc6IAAAAAACAUcAAQAAADcAAABjPVVT O2E9IDtwPW1jYy52aXJnaW5pYTtsPUhTQ0VNQUlMMy0wMjA2MjcxNDAxMDlaLTE2NzMAAB4AcAAB AAAAGAAAAFRyZWF0bWVudCBSb29tIENhbWVyYXMuAAIBcQABAAAAIAAAAAHCHdsa7CbjMURjOkF6 juRgKNsXLz4AAAV2UAAB4AAwCwAXDAAAAAAeABoMAQAAABAAAABPcnNvbGluaSwgSm9lIEQAHgAd DgEAAAAYAAAAVHJlYXRtZW50IFJvb20gQ2FtZXJhcy4AAgEJEAEAAABHBAAAQwQAAD0GAABMWkZ1 s0eUGQMACgByY3BnMTI14jIDQ3RleAVBAQMB9/8KgAKkA+QHEwKAD/MAUARWPwhVB7IRJQ5RAwEC AGNo4QrAc2V0MgYABsMRJfYzBEYTtzASLBEzCO8J97Y7GB8OMDURIgxgYwBQ8wsJAWQzNhZQC6YK 4wqElR08VwsRLB4VZSAT4AJ2HzB0d28gY2FZB4ByYQQgC4AgCGEguDIzMBZQA2ADcCwggIZuHzAE ACBmaXgJgJsfkB/AdgiQB+B0aB+B2RggYXQHgAIwIArAIzDvIWAAcCIxIuFvItEFwCHB8mEh4HVs AyAKsAOgJBObAxAjkXUiUQIQY3UEIBQodx8wZB/AVEJJ3icgQyLSISIggGMf4ACQgwIgB0BseS4p ICdw9SLgeSOiIBewH+AOsCIw3QIgIAbgItAggGYiwwCQuQEAIHcpIQQgKzV2JmDbJjIFAG8EEQNS ICMwE9D1JIQuKYBBJQMFsCABIsI9ICBwBAAFQCegIjBsaX5rHzAlIB/kIsEjQCohb35rLXUi0gIQ JJArJgGRbLcfgR/AItJnAHAjEHkhYLsi0QOgeQhgH9AIYGwiMJUr8HQuAWQIcW5nKAV/AZAmECqx KzU0BCcAB5BwHwWQBzEpQC7yMABNUlRDK5AUIHVwcykdWi31OnJPBRBnC4AHQAXQB5Cwc2FnZTpz HVRGA2FkOiAeciBEIgAqsVuzAMAmIW86PSEr8EAYIDhnMi4i4AdAItAubvRiLh/gXR1UBmACMDyw IymgCHBzZGE0UUp1WSGRMjchYAHQMBRAN6g6NTYQwE0dVFQ94CQgTDsBYy0J8GdA+wtRIlAuCsAv 0SSQM2A/EOMUID+FdWJqBZBAEiMnKwgAKHFDH/QuHV8KR38hMCIwQJEjoCVgHrUpkiD+SCMwIjAp oS+lIGUBAAqx/yNUK/ACMAQgIlE7oAVAItK7H+YUESA5cCFgIGYxIPD8Yy8iMCEkOLYugEmgJAN2 SSnjQPBzCHAkcStEYvcHkAVAC1FjB5EiUQuAL+D9KSEgIZAH4B/lLoAfISny/x+wJCAGcTYRBpAk ATTQIZF/CGBMY1PjNTI68B9xJuFzcwNwIaFucFVhIDEiUWj+bwfgNNEFwCEiJQEqAU1E9SvgaSsB bSzhBSAzYR/l/j9JkFfxA4Ep0B/mJ1E00v0m4GVa0R9iNNICEEDwKpH7BTAHcHUogCozKPEh0QWx e0yJWtBEXBQfVCLgKIBm/yIkWdcEYAMAIlAUACOgTGX/XpEG8CCABcAp8iLRKdA24v8hkWH1WXQl IDgQMFAFQATx/wnhRvUQwFtRVyRV9FFgI6D8cHAYIDhBKnFmRimgAHC/MbAhYB4YPRRCNS+DZSZw oQ3gIFBoeQ3Rcz+FowtxBUBKb2gDoFI+cP8o81rhOBBZkAdAbD4hYAfCTEJyUIED8GNrRvV9AXDA AB4ANRABAAAARwAAADxDMjc5QjUyNEJCNTIxNjRFQTgwMzRFMzNEQjdDRjcxRjAyN0IwRkI4QEhT Q0VNQUlMMy5oc2NzLnZpcmdpbmlhLmVkdT4AAAMAgBD/////HwDzEAEAAABEAAAARgBXACUAMwBB ACAAVAByAGUAYQB0AG0AZQBuAHQAIABSAG8AbwBtACAAQwBhAG0AZQByAGEAcwAuAC4ARQBNAEwA AAALAPYQAAAAAEAABzBn1TcF4x3CAUAACDABJogW4x3CAQMA3j+vbwAAAwDxPwkEAAAeAPg/AQAA ABAAAABPcnNvbGluaSwgSm9lIEQAAgH5PwEAAABSAAAAAAAAANynQMjAQhAatLkIACsv4YIBAAAA AAAAAC9PPU1DQy5WSVJHSU5JQS5FRFUvT1U9SFNDTUFJTC9DTj1SRUNJUElFTlRTL0NOPUdETzdR AAAAHgD6PwEAAAAVAAAAU3lzdGVtIEFkbWluaXN0cmF0b3IAAAAAAgH7PwEAAAAeAAAAAAAAANyn QMjAQhAatLkIACsv4YIBAAAAAAAAAC4AAAADAP0/5AQAAAMAGUAAAAAAAwAaQAAAAAAeADBAAQAA AAYAAABHRE83UQAAAB4AMUABAAAABgAAAEdETzdRAAAAHgA4QAEAAAAGAAAAR0RPN1EAAAAeADlA AQAAAAIAAAAuAAAAAwBdQAAAAAADAAlZAQAAAAsAZoEIIAYAAAAAAMAAAAAAAABGAAAAAA6FAAAA AAAAAwB+gQggBgAAAAAAwAAAAAAAAEYAAAAAUoUAAH1uAQAeAH+BCCAGAAAAAADAAAAAAAAARgAA AABUhQAAAQAAAAQAAAA5LjAAAwDCgQggBgAAAAAAwAAAAAAAAEYAAAAAAYUAAAAAAAALAMeBCCAG AAAAAADAAAAAAAAARgAAAAADhQAAAAAAAAMAzIEIIAYAAAAAAMAAAAAAAABGAAAAABGFAAAAAAAA AwDRgQggBgAAAAAAwAAAAAAAAEYAAAAAEIUAAAAAAAADANiBCCAGAAAAAADAAAAAAAAARgAAAAAY hQAAAAAAAAsA6YEIIAYAAAAAAMAAAAAAAABGAAAAAAaFAAAAAAAACwApAAAAAAALACMAAAAAAAMA BhBj1nlEAwAHENoDAAADABAQAAAAAAMAERABAAAAHgAIEAEAAABlAAAAV0FSRCxXRUhBVkVUV09D QU1FUkFTSU5PVVIyMzAwUk9PTSxPTkVJU0ZJWEVEVE9WSUVXVEhFVFJFQVRNRU5UQVJFQSxBTkRU SEVPVEhFUklTQUZVTExQQU5BTkRUSUxUQVVUTwAAAAACAX8AAQAAAEcAAAA8QzI3OUI1MjRCQjUy MTY0RUE4MDM0RTMzREI3Q0Y3MUYwMjdCMEZCOEBIU0NFTUFJTDMuaHNjcy52aXJnaW5pYS5lZHU+ AAARVQ== ------_=_NextPart_001_01C21DE3.167E9C89-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 11:03:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Nref-0003wU-00; Fri, 28 Jun 2002 11:03:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 234D51112F3; Fri, 28 Jun 2002 11:06:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA14698 for linac-eng-list; Thu, 27 Jun 2002 07:45:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA14694 for ; Thu, 27 Jun 2002 07:45:40 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KJF3TMRRMC008K2W@biomed.med.yale.edu> for Linac-eng@plato.aristotle.net; Thu, 27 Jun 2002 08:45:04 -0400 (EDT) Date: Thu, 27 Jun 2002 08:41:27 -0400 From: "Peter E. Vitali" Subject: Re: Treatment Room Cameras. To: Ward Dixon Cc: Linac-eng@plato.aristotle.net Message-id: <3D1B07ED.C8EF0936@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 27 Jun 2002 08:41:27 -0400 From: "Peter E. Vitali" Subject: Re: Treatment Room Cameras. To: Ward Dixon Cc: Linac-eng@plato.aristotle.net Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Ward: We have two color ccd cameras in each room. They are set up to flank both sides of the couch. Position in room is dependent on the room layout. They are not in the primary beam line but tend to be towards the end of the couch. We have two Panasonic Close Circuit Cameras which were originally powered by the monitor. Eliminates the need in the room for 110VAC power at the camera site. Only need the 75 ohm coax cable. Carries RF and 12VDC power. We now have separate power supplies at the Monitors since we have had to replace the earlier purchased monitors with new monitors that do not have the power supplies. The cameras are mounted on Pelco pan and tilt mounts. They also have Pelco Zoom lenses. A couple may have Panasonic Zoom Lenses. The Pelco lenses need adapters. The reason for two cameras and two monitors is that when we do children which have to be sedated, Anesthesia wants one camera on the child and one on their cardiac/respiratory monitor. They did not like the original close circuit monitors we had that could handle up to 3 cameras and we could switch between the cameras because they could only see the child or the cardiac monitor but not both at the same time. The zoom lens allow us to see the cardiac monitor screen up close and the faces of the small children and babies for sign of distress. The only problem that we have seen has been in our 2100C/D room. Neutrons take out the pixels of the CCD. Both cameras were installed in 1993 and our still in operation but you see some speckles in the picture only when the room lights are way down which is normally when they are setting up the patient.. In my other rooms that do not have High Energy 18X (Neutron production) we have cameras that are around 15 years old and still working. No speckling. Tend to loose monitors before we loose cameras. Lens tend to yellow over time but this has not affected the picture quality very much. The total cost per camera/monitor/pan and tilt/zoom lens is around $2500.00 to $3000.00 US Dollars. Probably cheaper if you use black and white. Most of the cost is in the zoom lenses and the pan and tilt systems. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 11:03:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Nreh-0003wY-00; Fri, 28 Jun 2002 11:03:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7D86C1112F3; Fri, 28 Jun 2002 11:06:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA13737 for linac-eng-list; Thu, 27 Jun 2002 06:58:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA13730 for ; Thu, 27 Jun 2002 06:58:13 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Thu, 27 Jun 2002 08:57:41 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Thu, 27 Jun 2002 08:56:02 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Thu, 27 Jun 2002 08:55:46 -0300 From: "Ward Dixon" To: Subject: Treatment Room Cameras. Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_F0ACDA42.E485F8AB" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 27 Jun 2002 08:55:46 -0300 From: "Ward Dixon" To: Subject: Treatment Room Cameras. Content-Type: multipart/mixed; boundary="=_F0ACDA42.E485F8AB" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_F0ACDA42.E485F8AB Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Good day all, The Head Therapist in our department wants to get the cameras set up, in = our 2100c/d room, for IMRT. He and I are unsure of the best places to = install new cameras. We are wondering if anyone out there would give us = some input as to how your rooms are set up with multiple cameras? How many = cameras do you use? Have you found optimum locations for the cameras? Do = you have them fed to multiple monitors at the consol or are they on one = monitor with a split screen. Any input would be appreciated. Thanks,=20 Ward Dixon Therapeutic Physics Saint John Regional Hospital Saint John, New Brunswick. --=_F0ACDA42.E485F8AB Content-Type: text/plain Content-Disposition: attachment; filename="TEXT.htm"
    Good day all,
     The Head Therapist in our department wants to get the cameras set up, in our 2100c/d room, for IMRT. He and I are unsure of the best places to install new cameras. We are wondering if anyone out there would give us some input as to how your rooms are set up with multiple cameras? How many cameras do you use? Have you found optimum locations for the cameras? Do you have them fed to multiple monitors at the consol or are they on one monitor with a split screen.
     Any input would be appreciated.
     Thanks,
    Ward Dixon
    Therapeutic Physics
    Saint John Regional Hospital
    Saint John, New Brunswick.
    --=_F0ACDA42.E485F8AB-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 15:28:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Nvnn-0007eQ-00; Fri, 28 Jun 2002 15:28:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7580C1112F9; Fri, 28 Jun 2002 15:32:02 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA20937 for linac-eng-list; Fri, 28 Jun 2002 07:55:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d10.mx.aol.com (imo-d10.mx.aol.com [205.188.157.42]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA20932 for ; Fri, 28 Jun 2002 07:55:50 -0500 (CDT) From: Beamguru@aol.com Received: from Beamguru@aol.com by imo-d10.mx.aol.com (mail_out_v32.21.) id y.39.2935ec76 (4188) for ; Fri, 28 Jun 2002 08:55:09 -0400 (EDT) Message-ID: <39.2935ec76.2a4db6ad@aol.com> Date: Fri, 28 Jun 2002 08:55:09 EDT Subject: PV IAS2 timeout issues To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_39.2935ec76.2a4db6ad_boundary" X-Mailer: AOL 6.0 for Windows US sub 10568 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Beamguru@aol.com Date: Fri, 28 Jun 2002 08:55:09 EDT Subject: PV IAS2 timeout issues To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_39.2935ec76.2a4db6ad_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_39.2935ec76.2a4db6ad_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit To All: Its a pleasure to join the group. I was interested to see how many are having problems with Asi500 Portal Vision IAS2 timeouts. Also indicate what RV system you are running. If Varis gen6 installation. This seems to be a problem these days and I am interested to see if this issue is isolated or wide spread. Also: Simulux HP with DTI. Annotate measure function has strange problem. When measuring X = 10cm i.e Y = 5cm or appears to be only half. Any suggestions !!! ThanX JD --part1_39.2935ec76.2a4db6ad_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit To All:
    Its a pleasure to join the group. I was interested to see how many are having problems with Asi500 Portal Vision IAS2 timeouts. Also indicate what RV system you are running. If Varis gen6 installation. This seems to be a problem these days and I am interested to see if this issue is isolated or wide spread.

    Also:
    Simulux HP with DTI. Annotate measure function has strange problem. When measuring X = 10cm i.e Y = 5cm or appears to be only half. Any suggestions !!!

    ThanX
    JD     --part1_39.2935ec76.2a4db6ad_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 16:16:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17NwXd-00089C-00; Fri, 28 Jun 2002 16:16:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9826D1112F3; Fri, 28 Jun 2002 16:19:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA22106 for linac-eng-list; Fri, 28 Jun 2002 08:52:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA22102 for ; Fri, 28 Jun 2002 08:51:59 -0500 (CDT) Received: from reg2.health.nb.ca ([10.21.210.1]) by mailhub.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-57574U3000L300S0V35) with SMTP id ca for ; Fri, 28 Jun 2002 10:51:26 -0300 Received: from Regional-Message_Server by reg2.health.nb.ca with Novell_GroupWise; Fri, 28 Jun 2002 10:49:42 -0300 Message-Id: X-Mailer: Novell GroupWise 5.5.4 Date: Fri, 28 Jun 2002 10:49:27 -0300 From: "Ward Dixon" To: Subject: Cameras. Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_461A6A66.9AFB86A3" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 28 Jun 2002 10:49:27 -0300 From: "Ward Dixon" To: Subject: Cameras. Content-Type: multipart/mixed; boundary="=_461A6A66.9AFB86A3" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_461A6A66.9AFB86A3 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Thanks to all who responded to my treatment room camera question. Ward Dixon --=_461A6A66.9AFB86A3 Content-Type: text/plain Content-Disposition: attachment; filename="TEXT.htm"
    Thanks to all who responded to my treatment room camera question.
     Ward Dixon
    --=_461A6A66.9AFB86A3-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 17:38:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Nxov-0000Gd-00; Fri, 28 Jun 2002 17:38:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1A0681112F3; Fri, 28 Jun 2002 17:41:19 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA24623 for linac-eng-list; Fri, 28 Jun 2002 10:16:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA24619 for ; Fri, 28 Jun 2002 10:16:20 -0500 (CDT) Received: by xchange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Fri, 28 Jun 2002 08:16:31 -0700 Message-ID: From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: MD-2 Rotary Joint Date: Fri, 28 Jun 2002 08:16:23 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: MD-2 Rotary Joint Date: Fri, 28 Jun 2002 08:16:23 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to all who responded to my message concerning our leaking rotary joint. I was asked to hold off on replacing this item until the new fiscal year start on 1 July. As I will be on vacation for the next 3 weeks (yahooooo) it will be a bit before we do the replacement. I had many generous offers for this replacement and I do appreciate all of them. I will get back to those who made offers when I return. As I mentioned before this machine is not used on a daily basis now so we can wait a bit. As a side note our therapists are happy to report that their effort to bake cookies inside their vehicles yesterday was successful. It is darn hot here in Tucson these days and I am going somewhere cool. Thanks Again, Dan Watters UMC Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 18:24:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17NyXk-0000M1-00; Fri, 28 Jun 2002 18:24:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B2AED1112F9; Fri, 28 Jun 2002 18:27:37 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA03849 for linac-eng-list; Fri, 28 Jun 2002 11:01:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta5.rcsntx.swbell.net (mta5.rcsntx.swbell.net [151.164.30.29]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA03821 for ; Fri, 28 Jun 2002 11:01:45 -0500 (CDT) Received: from 3vhgn01 ([66.137.104.98]) by mta5.rcsntx.swbell.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with SMTP id <0GYF00MAKB6WUB@mta5.rcsntx.swbell.net> for linac-eng@plato.aristotle.net; Fri, 28 Jun 2002 11:01:44 -0500 (CDT) Date: Fri, 28 Jun 2002 11:17:58 -0500 From: linacs Subject: Interesting Problem To: Linac List Message-id: <001201c21ebf$5e1de700$62688942@3vhgn01> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook Express 6.00.2600.0000 Content-type: multipart/alternative; boundary="Boundary_(ID_9QtqK/Rhkp2fsnN6pHhgEQ)" X-Priority: 3 X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 28 Jun 2002 11:17:58 -0500 From: linacs Subject: Interesting Problem To: Linac List X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Content-type: multipart/alternative; boundary="Boundary_(ID_9QtqK/Rhkp2fsnN6pHhgEQ)" X-Priority: 3 X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --Boundary_(ID_9QtqK/Rhkp2fsnN6pHhgEQ) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Hello List, I would like to share a problem with had with our Siemens Primus. After replacing an X-ray dose chamber and doing the physics our offset 2 went from 5mv to 350mv. The problem was intermittent and it could be there for hours or minutes. The following were the main symptoms: 1.. Sample and Hold PCB G42-4 TP20 was 0 mv with or without the problem. 2.. TP17 was 280 mv to 500 mv when the offset occurred (this was the problem) 3.. All of the dose1 boards worked and had no problem. 4.. When swapping the sample and hold and transceiver boards (Dose2 & Dose1) the problem remained in offset 2. 5.. By rotating the gantry the condition would change; but not always. Sometimes the problem was gone for 8 hours at a time with no way to reproduce it. Solution: A defective wire going from the dosimetry power supplies into the G42 mother board. G42 TB2-3 (-15V) What was interesting is that our volt meter would still measure -15.1V at G42 and that other than the offset 2 everything worked. We found the problem with the scope. this wire introduced a 4 Volts spike on all 4 supplies 8.3 ms apart. When we had the condition, and found the problem, I ohmed the wire and the meter read 0.004 ohms. It was only by replacing the wire that the spikes went away. Keep this in the back of your head. It took several days to find this elusive problem (versus 5 minutes to write this message). Take care everyone! Luis Segovia --Boundary_(ID_9QtqK/Rhkp2fsnN6pHhgEQ) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 7BIT
    Hello List,
     
    I would like to share a problem with had with our Siemens Primus.
     
    After replacing an X-ray dose chamber and doing the physics our offset 2 went from 5mv to 350mv.  The problem was intermittent and it could be there for hours or minutes.  The following were the main symptoms:
    1. Sample and Hold PCB G42-4 TP20 was 0 mv with or without the problem.
    2.                                             TP17 was 280 mv to 500 mv when the offset occurred (this was the problem)
    3. All of the dose1 boards worked and had no problem.
    4. When swapping the sample and hold and transceiver boards (Dose2 & Dose1) the problem remained in offset 2.
    5. By rotating the gantry the condition would change; but not always.  Sometimes the problem was gone for 8 hours at a time with no way to reproduce it.
    Solution:  A defective wire going from the dosimetry power supplies into the G42 mother board.  G42 TB2-3 (-15V)
     
    What was interesting is that our volt meter would still measure -15.1V at G42 and that other than the offset 2 everything worked.
    We found the problem with the scope.  this wire introduced a 4 Volts spike on all 4 supplies 8.3 ms apart.  When we had the condition, and found the problem, I ohmed the wire and the meter read 0.004 ohms.  It was only by replacing the wire that the spikes went away.
     
    Keep this in the back of your head.  It took several days to find this elusive problem (versus 5 minutes to write this message).
     
    Take care everyone!
     
    Luis Segovia
    --Boundary_(ID_9QtqK/Rhkp2fsnN6pHhgEQ)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jun 28 18:28:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Nybe-0000MV-00; Fri, 28 Jun 2002 18:28:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B4A551112F3; Fri, 28 Jun 2002 18:31:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA05568 for linac-eng-list; Fri, 28 Jun 2002 11:06:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA05545 for ; Fri, 28 Jun 2002 11:06:12 -0500 (CDT) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 28 Jun 2002 16:06:12 UT Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Fri, 28 Jun 2002 11:06:08 -0500 Message-ID: From: Tyson Long To: "'Beamguru@aol.com'" , "List Server (E-mail 2)" Subject: RE: PV IAS2 timeout issues Date: Fri, 28 Jun 2002 11:06:05 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C21EBD.B511F3A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "'Beamguru@aol.com'" , "List Server (E-mail 2)" Subject: RE: PV IAS2 timeout issues Date: Fri, 28 Jun 2002 11:06:05 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C21EBD.B511F3A0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C21EBD.B511F3A0 Content-Type: text/plain; charset="iso-8859-1" We had this same problem on our ISA2. It turned out to be the data cable between the ISA2 and the Vision computer. The shield on that cable was connected at both ends of the cable resulting in about a 100mA of current flowing between the two computers. We cut the shield on one end and the problems disappeared. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org -----Original Message----- From: Beamguru@aol.com [mailto:Beamguru@aol.com] Sent: Friday, June 28, 2002 7:55 AM To: linac-eng@plato.aristotle.net Subject: PV IAS2 timeout issues To All: Its a pleasure to join the group. I was interested to see how many are having problems with Asi500 Portal Vision IAS2 timeouts. Also indicate what RV system you are running. If Varis gen6 installation. This seems to be a problem these days and I am interested to see if this issue is isolated or wide spread. Also: Simulux HP with DTI. Annotate measure function has strange problem. When measuring X = 10cm i.e Y = 5cm or appears to be only half. Any suggestions !!! ThanX JD ------_=_NextPart_001_01C21EBD.B511F3A0 Content-Type: text/html; charset="iso-8859-1"
    We had this same problem on our ISA2.  It turned out to be the data cable between the ISA2 and the Vision computer.  The shield on that cable was connected at both ends of the cable resulting in about a 100mA of current flowing between the two computers.  We cut the shield on one end and the problems disappeared.
     

    Tyson Long
    Bio-Med Equipment Specialist
    Mercy Medical Center
    Cedar Rapids, Iowa
    E-Mail  tlong@mercycare.org

    -----Original Message-----
    From: Beamguru@aol.com [mailto:Beamguru@aol.com]
    Sent: Friday, June 28, 2002 7:55 AM
    To: linac-eng@plato.aristotle.net
    Subject: PV IAS2 timeout issues

    To All:
    Its a pleasure to join the group. I was interested to see how many are having problems with Asi500 Portal Vision IAS2 timeouts. Also indicate what RV system you are running. If Varis gen6 installation. This seems to be a problem these days and I am interested to see if this issue is isolated or wide spread.

    Also:
    Simulux HP with DTI. Annotate measure function has strange problem. When measuring X = 10cm i.e Y = 5cm or appears to be only half. Any suggestions !!!

    ThanX
    JD
    ------_=_NextPart_001_01C21EBD.B511F3A0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 01 21:34:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17P6vz-0002zA-00; Mon, 01 Jul 2002 21:34:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B99D11112FA; Mon, 1 Jul 2002 21:36:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA03923 for linac-eng-list; Mon, 1 Jul 2002 13:54:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web11603.mail.yahoo.com (web11603.mail.yahoo.com [216.136.172.55]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA03919 for ; Mon, 1 Jul 2002 13:54:39 -0500 (CDT) Message-ID: <20020701185439.46703.qmail@web11603.mail.yahoo.com> Received: from [66.57.105.20] by web11603.mail.yahoo.com via HTTP; Mon, 01 Jul 2002 11:54:39 PDT Date: Mon, 1 Jul 2002 11:54:39 -0700 (PDT) From: Ronnie Relyea Subject: biocide/inhibitor To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 1 Jul 2002 11:54:39 -0700 (PDT) From: Ronnie Relyea Subject: biocide/inhibitor To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello all, Can someone tell me the amount of NALCO biocide and inhibitor that comes in those bottles from Varian? I accidentally discarded my empties. Thanks, Ron Relyea __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 00:22:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17P9ZG-00039D-00; Tue, 02 Jul 2002 00:22:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9A9D41112FB; Tue, 2 Jul 2002 00:25:19 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA22923 for linac-eng-list; Mon, 1 Jul 2002 17:02:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA22915 for ; Mon, 1 Jul 2002 17:01:55 -0500 (CDT) Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Mon, 01 Jul 2002 15:01:08 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0 Date: Mon, 01 Jul 2002 14:59:21 -0700 From: "Nelson Lacsina" To: , Subject: Varian Etr Problem Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA22920 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 01 Jul 2002 14:59:21 -0700 From: "Nelson Lacsina" To: , Subject: Varian Etr Problem Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA22920 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello List, I am having a problem with an etr couch that I know somone can help me out with....Here are the details: Couch longitudinal and lateral drive does not go into slow down mode prior to hitting limit switches... I have calibrated both motions and this did not help....This couch is on a 600C machine...I seem to remember some traffic on this issue but can't remember the details...Any suggestions would be helpful Thanks in advance, Nelson 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 01:26:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PAYn-0003B9-00; Tue, 02 Jul 2002 01:26:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AD70D1112FA; Tue, 2 Jul 2002 01:28:54 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA24842 for linac-eng-list; Mon, 1 Jul 2002 18:03:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA24838 for ; Mon, 1 Jul 2002 18:03:15 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id KAA29796 for ; Tue, 2 Jul 2002 10:41:57 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Tue, 2 Jul 2002 11:05:53 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 02 Jul 2002 11:02:09 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 02 Jul 2002 11:01:54 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian Etr Problem Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA24839 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Jul 2002 11:01:54 +1200 From: "Dave Pinchin" To: , Subject: Re: Varian Etr Problem Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA24839 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day Nelson, Check to see that the bearings are not hitting the ends. They do tend to migrate. The symptoms are reduced travel, hitting mechanical stop (bearing end plate) before uswitch or software limit. Quick test is to slide couch to end very gently and listen for the uswitch. If you slide too fast the brakes will come on. If this is your problem I have found 'brute force and ignorance' the best solution. If there are better fixes I would love to hear of them. Dave. >>> "Nelson Lacsina" 2/07/02 09:59:21 >>> Hello List, I am having a problem with an etr couch that I know somone can help me out with....Here are the details: Couch longitudinal and lateral drive does not go into slow down mode prior to hitting limit switches... I have calibrated both motions and this did not help....This couch is on a 600C machine...I seem to remember some traffic on this issue but can't remember the details...Any suggestions would be helpful Thanks in advance, Nelson ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 01:44:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PAqj-0003Bo-00; Tue, 02 Jul 2002 01:44:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CACF21112FA; Tue, 2 Jul 2002 01:47:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA25244 for linac-eng-list; Mon, 1 Jul 2002 18:25:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from im2.sec.tds.net (im2.mail.tds.net [216.170.230.92]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA25239 for ; Mon, 1 Jul 2002 18:25:41 -0500 (CDT) Received: from dee (vhil2pool0-a17.il.tds.net [208.137.72.178]) by im2.sec.tds.net (8.12.3/8.12.3) with SMTP id g61NPe9x028328; Mon, 1 Jul 2002 18:25:40 -0500 (CDT) Reply-To: From: "Dee Romanyszyn" To: , "Ronnie Relyea" Cc: "RadParts" Subject: RE: biocide/inhibitor Date: Mon, 1 Jul 2002 18:27:18 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V5.00.3018.1300 Importance: Normal In-Reply-To: <20020701185439.46703.qmail@web11603.mail.yahoo.com> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Dee Romanyszyn" To: , "Ronnie Relyea" Cc: "RadParts" Subject: RE: biocide/inhibitor Date: Mon, 1 Jul 2002 18:27:18 -0500 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.3018.1300 Importance: Normal In-Reply-To: <20020701185439.46703.qmail@web11603.mail.yahoo.com> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello Ron!! The inhibitor is 250.00ml and the biocide is 50.00ml I know that Varian no longer sells them separately but as a kit. We have stock on both these items, and they're definitely priced way below the $276.12 that varian is charging. Give me a call at 1-877-704-3838 and we'll talk. It's been a while. Dimitro "Dee" Romanyszyn Radparts.com Registered to ISO 9001:2000 Quality Standards -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Ronnie Relyea Sent: Monday, July 01, 2002 1:55 PM To: linac-eng@plato.aristotle.net Subject: biocide/inhibitor Hello all, Can someone tell me the amount of NALCO biocide and inhibitor that comes in those bottles from Varian? I accidentally discarded my empties. Thanks, Ron Relyea __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 01:45:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PArd-0003Bu-00; Tue, 02 Jul 2002 01:45:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 46C8B1112FA; Tue, 2 Jul 2002 01:48:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA22297 for linac-eng-list; Mon, 1 Jul 2002 16:32:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA22293 for ; Mon, 1 Jul 2002 16:32:45 -0500 (CDT) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 1 Jul 2002 21:24:14 UT Received: by exchange4.inhs.org with Internet Mail Service (5.5.2650.21) id ; Mon, 1 Jul 2002 14:33:36 -0700 Message-ID: <116B1F67502ED3119B2D00902740B816025C4A0F@exchange3.inhs.org> From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Laser mounting post Date: Mon, 1 Jul 2002 14:32:10 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.aristotle.net'" Subject: Laser mounting post Date: Mon, 1 Jul 2002 14:32:10 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Does anyone know of a company that markets a laser mounting post other than LAP and Gammex? Regards, Tom Bush 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 02:28:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PBXB-0003DG-00; Tue, 02 Jul 2002 02:28:45 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A689B1112FA; Tue, 2 Jul 2002 02:31:17 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA26573 for linac-eng-list; Mon, 1 Jul 2002 19:11:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA26569 for ; Mon, 1 Jul 2002 19:11:23 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id LAA03001 for ; Tue, 2 Jul 2002 11:50:06 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Tue, 2 Jul 2002 12:14:02 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 02 Jul 2002 12:10:18 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 02 Jul 2002 12:10:05 +1200 From: "Dave Pinchin" To: , Subject: RE: biocide/inhibitor Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA26570 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Jul 2002 12:10:05 +1200 From: "Dave Pinchin" To: , Subject: RE: biocide/inhibitor Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA26570 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk What sort of 'way below the $276.12 that varian is charging.' A local water chemical supplier suggests that '$40 would be too much' (US$20). >>> droman@tds.net 2/07/02 11:27:18 >>> Hello Ron!! The inhibitor is 250.00ml and the biocide is 50.00ml I know that Varian no longer sells them separately but as a kit. We have stock on both these items, and they're definitely priced way below the $276.12 that varian is charging. Give me a call at 1-877-704-3838 and we'll talk. It's been a while. Dimitro "Dee" Romanyszyn Radparts.com Registered to ISO 9001:2000 Quality Standards -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Ronnie Relyea Sent: Monday, July 01, 2002 1:55 PM To: linac-eng@plato.aristotle.net Subject: biocide/inhibitor Hello all, Can someone tell me the amount of NALCO biocide and inhibitor that comes in those bottles from Varian? I accidentally discarded my empties. Thanks, Ron Relyea __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 03:18:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PCJP-0003FB-00; Tue, 02 Jul 2002 03:18:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 427E51112FA; Tue, 2 Jul 2002 03:21:07 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA27873 for linac-eng-list; Mon, 1 Jul 2002 20:01:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA27869 for ; Mon, 1 Jul 2002 20:01:51 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id MAA06521 for ; Tue, 2 Jul 2002 12:40:33 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Tue, 2 Jul 2002 13:04:30 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 02 Jul 2002 13:00:46 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 02 Jul 2002 13:00:30 +1200 From: "Dave Pinchin" To: Subject: RE: biocide/inhibitor Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id UAA27870 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 02 Jul 2002 13:00:30 +1200 From: "Dave Pinchin" To: Subject: RE: biocide/inhibitor Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id UAA27870 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day Here's a real great idea for cutting down the costs of the goop. 1/ Package two bottles of each and a filter. This would cut down on freight. 2/ Package for a site. ie. We have 2x 2100 therefore we would receive 4 bottles of each and two filters. 3/ Send by snail mail rather than 'medical emergency'. The most recent price from V (6 months ago) was NZ$1367.48 for the two bottles. I also run a 'hobby company' and have looked into supplying Australasia. If the market existed I could supply US very competitively. But it seems wrong to ship this goop to NZ just to bottle it and send it back again. Can we have some reality in some of these prices please. :( Dave ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 13:08:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PLVx-0008M8-00; Tue, 02 Jul 2002 13:08:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 807681112FA; Tue, 2 Jul 2002 13:10:35 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id FAA07690 for linac-eng-list; Tue, 2 Jul 2002 05:47:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mx1.mail.twtelecom.net (mx1.mail.twtelecom.net [207.67.10.250]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA07686 for ; Tue, 2 Jul 2002 05:47:27 -0500 (CDT) Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by mx1.mail.twtelecom.net (Postfix) with ESMTP id B3DDE69A9A; Tue, 2 Jul 2002 05:47:23 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g62AlNfM016383; Tue, 2 Jul 2002 05:47:23 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g62AlNVV016380; Tue, 2 Jul 2002 05:47:23 -0500 (CDT) Received: through eSafe SMTP Relay 1025189229; Tue Jul 02 05:47:23 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Jul 2002 05:47:23 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5F04@wmhmail.phci.org> From: "Williams, Rod" To: "'Nelson Lacsina'" , linac-eng@plato.aristotle.net, linacs@swbell.net Subject: RE: Varian Etr Problem Date: Tue, 2 Jul 2002 05:47:07 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C221B5.CFA41770" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Nelson Lacsina'" , linac-eng@plato.aristotle.net, linacs@swbell.net Subject: RE: Varian Etr Problem Date: Tue, 2 Jul 2002 05:47:07 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C221B5.CFA41770" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C221B5.CFA41770 Content-Type: text/plain I don't remember the old ETR slowing down before it hit the stops. Just the clutch slipping when the bearings tightened up before it hit the ends. If you rebuild the drive assemblies and use the aftermarket clutches you could blow the fuse on the motor drive PCB, as the aftermarket clutch doesn't seem to slip as much as the Varian. Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: Nelson Lacsina [SMTP:lacsinan@radiological.com] > Sent: Monday, July 01, 2002 4:59 PM > To: linac-eng@plato.aristotle.net; linacs@swbell.net > Subject: Varian Etr Problem > > > Hello List, > > I am having a problem with an etr couch that I know somone can > help me out with....Here are the details: > > Couch longitudinal and lateral drive does not go into slow down mode prior > to hitting limit switches... > > I have calibrated both motions and this did not help....This couch is on a > 600C machine...I seem to remember some traffic on this issue but can't > remember the details...Any suggestions would be helpful > > Thanks in advance, > Nelson > ------_=_NextPart_001_01C221B5.CFA41770 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Varian Etr Problem

    I don't remember the o= ld ETR slowing down before it hit the stops. Just the clutch slipping whe= n the bearings tightened up before it hit the ends. If you rebuild the dr= ive assemblies and use the aftermarket clutches you could blow the fuse o= n the motor drive PCB, as the aftermarket clutch doesn't seem to slip as = much as the Varian.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



      -----Original Message-----
      From:   Nelson  Lacsina [SMTP:lacsinan@radiological.c= om]
      Sent:   Monday, July 01, 2002 4:59 PM
      To:     linac-eng@plato.aristotle.net; linacs@sw= bell.net
      Subject:    &nbs= p;   Varian Etr Proble= m


      Hello List,

            &nbs= p;   I am having a problem with an etr couch that I know somone= can help me out with....Here are the details:

      Couch longitudinal and lateral drive doe= s not go into slow down mode prior to hitting limit switches...
       
      I have calibrated both motions and this= did not help....This couch is on a 600C machine...I seem to remember som= e traffic on this issue but can't remember the details...Any suggestions = would be helpful

      Thanks in advance,
            &nb= sp;          Nelson

    ------_=_NextPart_001_01C221B5.CFA41770-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 16:58:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PP6j-0003fD-00; Tue, 02 Jul 2002 16:58:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 72B3B1112FA; Tue, 2 Jul 2002 17:00:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA12295 for linac-eng-list; Tue, 2 Jul 2002 09:27:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA12289; Tue, 2 Jul 2002 09:27:53 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id KAA26149; Tue, 2 Jul 2002 10:21:24 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma025982; Tue, 2 Jul 02 10:20:49 -0400 Subject: Re: Laser mounting post To: "Bush, Thomas M." Cc: "'Linac-eng@plato.aristotle.net'" , owner-linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Tue, 2 Jul 2002 09:27:27 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 07/02/2002 09:27:27 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Re: Laser mounting post To: "Bush, Thomas M." Cc: "'Linac-eng@plato.aristotle.net'" , owner-linac-eng@plato.aristotle.net Date: Tue, 2 Jul 2002 09:27:27 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 07/02/2002 09:27:27 AM Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Tom.... We designed our own then had a local fabrication shop construct at a cost less than $500.00 each. If you need I'll see if the drawings are still around and could fax copy but they are easily drawn as your requirements dictate . Regards Larry Sullivan Baptist Hospital Pensacola FL. USA 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 02 17:36:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PPho-00048J-00; Tue, 02 Jul 2002 17:36:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A8B9C1112FD; Tue, 2 Jul 2002 17:39:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13087 for linac-eng-list; Tue, 2 Jul 2002 09:52:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dcntmta02.spectrum-health.org ([167.73.110.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA13083 for ; Tue, 2 Jul 2002 09:52:05 -0500 (CDT) From: neville.wiles@spectrum-health.org Received: by dcntmta02.spectrum-health.org with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Jul 2002 10:51:28 -0400 Message-ID: <9BA17E080E6CD51195EE0020484023FF9C784D@dcntmsg03.spectrum-health.org> To: BushT@shmc.org, Linac-eng@plato.aristotle.net Subject: RE: Laser mounting post Date: Tue, 2 Jul 2002 10:52:11 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C221D8.0BA5E830" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org To: BushT@shmc.org, Linac-eng@plato.aristotle.net Subject: RE: Laser mounting post Date: Tue, 2 Jul 2002 10:52:11 -0400 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C221D8.0BA5E830" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C221D8.0BA5E830 Content-Type: text/plain; charset="iso-8859-1" Hi, I have been mounting lasers in CT rooms here and die to the unsteady walls I have been ordering "Steel King" guard rail posts out of the Grainger Catalog. The double high corner posts work very well. Catalog #5W810 They are very heavy duty, andif someone runs into one of them with a bed it won't move. Of course you would have to make mounting plates and bolt them to them. Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org -----Original Message----- From: Bush, Thomas M. [mailto:BushT@shmc.org] Sent: Monday, July 01, 2002 5:32 PM To: 'Linac-eng@plato.aristotle.net' Subject: Laser mounting post Does anyone know of a company that markets a laser mounting post other than LAP and Gammex? Regards, Tom Bush ------_=_NextPart_001_01C221D8.0BA5E830 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Laser mounting post

    Hi,

    I have been mounting lasers in CT rooms here and die = to the unsteady walls I have been ordering "Steel King" guard = rail posts out of the Grainger Catalog.  The double high corner = posts work very well.  Catalog #5W810  They are very heavy = duty, andif someone runs into one of them with a bed it won't = move.  Of course you would have to make mounting plates and bolt = them to them.

    Neville Wiles
    Spectrum Health
    Grand Rapids, MI
    616) 391-3639
    Neville.Wiles@Spectrum-Health.org

    -----Original Message-----
    From: Bush, Thomas M. [mailto:BushT@shmc.org]
    Sent: Monday, July 01, 2002 5:32 PM
    To: 'Linac-eng@plato.aristotle.net'
    Subject: Laser mounting post


    Does anyone know of a company that markets a laser = mounting post other than
    LAP and Gammex?
    Regards,
    Tom Bush

    ------_=_NextPart_001_01C221D8.0BA5E830-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 03 09:13:55 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17PeKp-0005Og-00; Wed, 03 Jul 2002 09:13:55 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A09E0112D4F; Tue, 2 Jul 2002 21:45:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA20286 for linac-eng-list; Tue, 2 Jul 2002 14:12:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA20278 for ; Tue, 2 Jul 2002 14:12:08 -0500 (CDT) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 2 Jul 2002 19:12:07 UT Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Tue, 2 Jul 2002 14:12:06 -0500 Message-ID: From: Tyson Long To: "List Server (E-mail 2)" Date: Tue, 2 Jul 2002 14:11:57 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "List Server (E-mail 2)" Date: Tue, 2 Jul 2002 14:11:57 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I need to get rid of some parts. We have switched to green lasers. So I have 3 never been used red Gammex lasers. One that has been used for about a year, and three that were in storage with a manufacture date of March of 1993. These four work like brand new. Model number 1A475. I also have 3 crosshairs for an 1800 and a harmonic drive for a clinac 4 and one for a 6/100. I would also like to find a home for a roughing pump Varian model SD-90. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 03 22:51:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Pr5e-0004Nn-00; Wed, 03 Jul 2002 22:51:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB0291112F7; Wed, 3 Jul 2002 22:53:13 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA25444 for linac-eng-list; Wed, 3 Jul 2002 14:57:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA25436 for ; Wed, 3 Jul 2002 14:57:37 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C222CB.CE9B78C3" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: PV IAS2 timeout issues Date: Wed, 3 Jul 2002 15:57:05 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386BE@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: PV IAS2 timeout issues Thread-Index: AcIesQK7x/3BgmOaQmS9IHwDmRSE3wEFC43Q From: "Tim Cullen" To: , Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C222CB.CE9B78C3" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: PV IAS2 timeout issues Date: Wed, 3 Jul 2002 15:57:05 -0400 Thread-Topic: PV IAS2 timeout issues Thread-Index: AcIesQK7x/3BgmOaQmS9IHwDmRSE3wEFC43Q From: "Tim Cullen" To: , Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C222CB.CE9B78C3 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable JD, sorry for the lag in replying, but we are having similar problems with the IAS2 unit. Just yesterday had a very weird tone alarm coming from the IAS2 computer in the room. I called this in to Varian because this unit is still under warranty. After calling I tried to pull up a patient file and attempt image acquisition and that is when it gave me the timeout message. Up till then, at the bottom of the screen the connection was indicated as being established. I talked with Varian about a ground loop possibility, and they are not so sure it is the problem. In other words they are investigating all possibilities. If you disconnect the ground on one end of the patch cable, I'm under the impression to do the most good, you should capacitively couple the receiving end. Using a shielded cable with only one end grounded can give you problems too in a RF environment. Of course that would depend on the length of the cable and the frequency. We use IMPAC as our RV. Through the grapevine has it that if you are using Varis and attempt a double after exposure, the IAS2 will give the TO every time. Any truth to that statement? I see that Varian went back to the old lamp and projector for the field and ODI lights? We've had this unit in here for half-a-year and when we did the MLC PMI is the first time I gave it any notice. It looks like it will take a significant amount of time to replace the field lamp and do the QA if it goes during normal operations. Anyone had the joy of doing this yet? Tim Cullen =20 =20 -----Original Message----- From: Beamguru@aol.com [mailto:Beamguru@aol.com]=20 Sent: Friday, June 28, 2002 8:55 AM To: linac-eng@plato.aristotle.net Subject: PV IAS2 timeout issues =09 =09 To All:=20 Its a pleasure to join the group. I was interested to see how many are having problems with Asi500 Portal Vision IAS2 timeouts. Also indicate what RV system you are running. If Varis gen6 installation. This seems to be a problem these days and I am interested to see if this issue is isolated or wide spread.=20 =09 Also:=20 Simulux HP with DTI. Annotate measure function has strange problem. When measuring X =3D 10cm i.e Y =3D 5cm or appears to be only = half. Any suggestions !!!=20 =09 ThanX=20 JD=20 ------_=_NextPart_001_01C222CB.CE9B78C3 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    JD,=20 sorry for the lag in replying, but we are having similar problems with = the IAS2=20 unit. Just yesterday had a very weird tone alarm coming from the IAS2 = computer=20 in the room. I called this in to Varian because this unit is still under = warranty. After calling I tried to pull up a patient file and attempt = image=20 acquisition and that is when it gave me the timeout message. Up till = then, at=20 the bottom of the screen the connection was indicated as being=20 established.
    I=20 talked with Varian about a ground loop possibility, and they are not so = sure it=20 is the problem. In other words they are investigating all=20 possibilities.
    If you=20 disconnect the ground on one end of the patch cable, I'm under the = impression to=20 do the most good, you should capacitively couple the receiving end. = Using a=20 shielded cable with only one end grounded can give you problems too = in a RF=20 environment. Of course that would depend on the length of the cable and = the=20 frequency.
    We use=20 IMPAC as our RV. Through the grapevine has it that if you are using = Varis and=20 attempt a double after exposure, the IAS2 will give the TO every time. = Any truth=20 to that statement?
    I see=20 that Varian went back to the old lamp and projector for the field = and ODI=20 lights? We've had this unit in here for half-a-year and when we did = the MLC=20 PMI is the first time I gave it any notice. It looks like it=20 will take a significant amount of time to replace the field = lamp and=20 do the QA if it goes during normal operations. Anyone had the joy of = doing this=20 yet?
    Tim=20 Cullen
     
     
    To=20 All:
    Its a pleasure to join the group. I was interested to see how = many=20 are having problems with Asi500 Portal Vision IAS2 timeouts. Also = indicate=20 what RV system you are running. If Varis gen6 installation. This seems = to be a=20 problem these days and I am interested to see if this issue is = isolated or=20 wide spread.

    Also:
    Simulux HP with DTI. Annotate measure = function=20 has strange problem. When measuring X =3D 10cm i.e Y =3D 5cm or = appears to be only=20 half. Any suggestions !!!

    ThanX
    JD    =20     =00 ------_=_NextPart_001_01C222CB.CE9B78C3-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 05 11:33:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17QPSp-0000HE-00; Fri, 05 Jul 2002 11:33:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 929061112F1; Fri, 5 Jul 2002 11:35:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA14427 for linac-eng-list; Fri, 5 Jul 2002 04:05:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA14423 for ; Fri, 5 Jul 2002 04:05:52 -0500 (CDT) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 17QP1k-0002lZ-00; Fri, 05 Jul 2002 10:05:20 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3CF3A62D0048CEA4 for linac-eng@plato.aristotle.net; Fri, 5 Jul 2002 10:05:18 +0100 Received: from artemis.pht.org (195.105.105.5) by relay.nhs.uk (Syntegra-4 6.5.016) id 3D22A3C800066AAA for linac-eng@plato.aristotle.net; Fri, 5 Jul 2002 10:05:40 +0100 Received: by ARTEMIS with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Jul 2002 10:03:23 +0100 Message-ID: <37106221CAA3D511AC1800508BD3160355E47A@OBERON> From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: Theraview Training Date: Fri, 5 Jul 2002 10:06:02 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Whitlock, Brian" To: "Linac-Eng (E-mail)" Subject: Theraview Training Date: Fri, 5 Jul 2002 10:06:02 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Has any one had any technical training on the Theraview Portal Imaging system? If so what and where and how good (thorough) etc. I have noticed Elekta do a proper course for I View. But QADOS are offering a couple of hours on site and really no formal training. Any comments welcome. Brian Brian Whitlock Radiotherapy Physics Poole Hospital Longfleet Road Poole, Dorset. BH15 2JB Tel 01202 448175 email bwhitlock@poole-tr.swest.nhs.uk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 05 16:27:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17QU3I-0003zH-00; Fri, 05 Jul 2002 16:27:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A12B41112F4; Fri, 5 Jul 2002 16:28:58 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA18897 for linac-eng-list; Fri, 5 Jul 2002 08:58:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dm1-cit-msw01.health.qld.gov.au (smtp.health.qld.gov.au [203.202.23.104]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA18893 for ; Fri, 5 Jul 2002 08:58:49 -0500 (CDT) Received: from HEALTH-ES2.HEALTH.QLD.GOV.AU (unverified) by dm1-cit-msw01.health.qld.gov.au (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 5 Jul 2002 23:58:39 +1000 Received: from CORPORATE-SYSTEMS-Message_Server by HEALTH-ES2.HEALTH.QLD.GOV.AU with Novell_GroupWise; Fri, 05 Jul 2002 23:59:05 +1000 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Thu, 04 Jul 2002 20:39:02 +1000 From: "Xray Engineering RBH" To: , , Subject: RE: Elekta SL18 Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_EFB3FA39.54356292" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 04 Jul 2002 20:39:02 +1000 From: "Xray Engineering RBH" To: , , Subject: RE: Elekta SL18 Content-Type: multipart/alternative; boundary="=_EFB3FA39.54356292" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_EFB3FA39.54356292 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable We are trying to locate a Quadruple Head video card (PCI) for the colour co= mputer that drives all monitor displays ( both inside the room and on the c= onsole) on the SL18 Linear Acc. Existing card is S3 trio 64 V2 Dx PCI card= . Elekta part number is 4513.340.3087 We will be glad to hear from anyone who has any information. According to t= he local agent this card is now obsolete. Thanks X-Ray Engineers Royal Brisbane Hospital Brisbane, Australia. ********************************************************************** This e-mail, including any attachments sent with it, is confidential=20 and for the sole use of the intended recipient(s). This confidentiality=20 is not waived or lost if you receive it and you are not the intended=20 recipient(s), or if it is transmitted/ received in error. =20 Any unauthorised use, alteration, disclosure, distribution or review=20 of this e-mail is prohibited. It may be subject to a statutory duty of=20 confidentiality if it relates to health service matters. If you are not the intended recipient(s), or if you have received this=20 e-mail in error, you are asked to immediately notify the sender by=20 telephone or by return e-mail. You should also delete this e-mail=20 message and destroy any hard copies produced. ********************************************************************** --=_EFB3FA39.54356292 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Description: HTML

    We are trying to locate a Quadruple Head video card (PCI) for the= colour computer that drives all monitor displays ( both inside the room an= d on=20 the console) on the SL18 Linear Acc.  Existing card is S3 trio 64 V2 D= x PCI=20 card. Elekta part number is 4513.340.3087
    We will be glad to hear from anyone who has any information. According= to=20 the local agent this card is now obsolete.
     
    Thanks
    X-Ray Engineers
    Royal Brisbane Hospital
    Brisbane, Australia.


    **********************************************************************
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     --=_EFB3FA39.54356292-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 05 22:18:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17QZXV-0004sJ-00; Fri, 05 Jul 2002 22:18:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 938C51112F1; Fri, 5 Jul 2002 22:20:28 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA16671 for linac-eng-list; Fri, 5 Jul 2002 14:53:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA16667 for ; Fri, 5 Jul 2002 14:53:41 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Jul 2002 12:53:10 -0700 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL-4 Pendant Date: Fri, 5 Jul 2002 12:52:25 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL-4 Pendant Date: Fri, 5 Jul 2002 12:52:25 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have a left over pendant for a CL-4. I will be throwing it away if no one wants it. It is in good condition but it may need a gantry potentiometer. I will send it to the first person who gets me their complete shipping address. Thank you. Jim Wilson Clinical Engineering Providence St.Vincent Hospital Portland Or. 97225 USA **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Jul 06 02:03:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Qd2T-00050m-00; Sat, 06 Jul 2002 02:03:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 019601112F1; Sat, 6 Jul 2002 02:04:37 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA21061 for linac-eng-list; Fri, 5 Jul 2002 18:38:34 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA21057 for ; Fri, 5 Jul 2002 18:38:32 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Fri, 5 Jul 2002 14:52:46 -0700 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL-4 Pendant Date: Fri, 5 Jul 2002 14:52:02 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL-4 Pendant Date: Fri, 5 Jul 2002 14:52:02 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thank you for responding on the pendant. I found an interested party and it as been shipped. **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 08 14:27:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17RXcS-0003wc-00; Mon, 08 Jul 2002 14:27:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AF2351112F1; Mon, 8 Jul 2002 14:28:56 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA19126 for linac-eng-list; Mon, 8 Jul 2002 06:46:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r01.mx.aol.com (imo-r01.mx.aol.com [152.163.225.97]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA19120 for ; Mon, 8 Jul 2002 06:45:59 -0500 (CDT) From: OER123@aol.com Received: from OER123@aol.com by imo-r01.mx.aol.com (mail_out_v32.21.) id y.96.28f7bc8e (25715) for ; Mon, 8 Jul 2002 07:45:23 -0400 (EDT) Message-ID: <96.28f7bc8e.2a5ad553@aol.com> Date: Mon, 8 Jul 2002 07:45:23 EDT Subject: Screen Manager Error To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_96.28f7bc8e.2a5ad553_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: OER123@aol.com Date: Mon, 8 Jul 2002 07:45:23 EDT Subject: Screen Manager Error To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_96.28f7bc8e.2a5ad553_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_96.28f7bc8e.2a5ad553_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit On a Clinac 2100 with 6.1 software, when using the console to rotate collimator or gantry we get screen manager errors, see the below: run-time error M611-math -floating point error stack under flow run time error R6001 -null pointer assignment C\VARIAN Things I've tried include: Dedicated keyboard Com and control processors Interface PCBs Timer controller Appreciate any input if anyone has ever seen this error. Thanks Fred Williams Oncology Equipment Repair Springfield, Illinois --part1_96.28f7bc8e.2a5ad553_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit On a Clinac 2100 with 6.1 software, when using the console to rotate collimator or gantry we get screen manager errors, see the below:

    run-time error M611-math
    -floating point error stack under flow
    run time error R6001
    -null pointer assignment
    C\VARIAN

    Things I've tried include:
    Dedicated keyboard
    Com and control processors
    Interface PCBs
    Timer controller

    Appreciate any input if anyone has ever seen this error.  Thanks

    Fred Williams
    Oncology Equipment Repair
    Springfield, Illinois     --part1_96.28f7bc8e.2a5ad553_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 08 17:43:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17RafI-0006Qy-00; Mon, 08 Jul 2002 17:43:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F2EEA1112F3; Mon, 8 Jul 2002 17:44:02 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA24975 for linac-eng-list; Mon, 8 Jul 2002 10:04:33 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA24968 for ; Mon, 8 Jul 2002 10:04:32 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Mon, 8 Jul 2002 09:06:50 -0600 Received: from scf.sk.ca ([172.24.56.15]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002070809042010620 for ; Mon, 08 Jul 2002 09:04:20 -0600 Message-ID: <3D29A9FC.72334F78@scf.sk.ca> Date: Mon, 08 Jul 2002 09:04:28 -0600 From: Chris Barnardo X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: "Linac-Engineers, Listserver" Subject: SL-25 Flight Tube Content-Type: multipart/mixed; boundary="------------08F437D9EE25C6C96DFA71C2" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 08 Jul 2002 09:04:28 -0600 From: Chris Barnardo X-Accept-Language: en To: "Linac-Engineers, Listserver" Subject: SL-25 Flight Tube Content-Type: multipart/mixed; boundary="------------08F437D9EE25C6C96DFA71C2" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. --------------08F437D9EE25C6C96DFA71C2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi: We are looking for a Slitted Flight Tube for our Philips SL-25. The Elekta part # is 4513340014003A. Does anyone have a used one that we could purchase? Thanks. --------------08F437D9EE25C6C96DFA71C2 Content-Type: text/x-vcard; charset=us-ascii; name="cbarnardo.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Chris Barnardo Content-Disposition: attachment; filename="cbarnardo.vcf" begin:vcard n:Barnardo;Chris tel;fax:(306) 655-2701 tel;work:(306) 655-2699 x-mozilla-html:FALSE org:Saskatoon Cancer Centre;Medical Physics adr:;;20 Campus Drive;Saskatoon;Sask;S7N 4H4;Canada version:2.1 email;internet:cbarnardo@scf.sk.ca title:Electronics Technologist fn:Barnardo Chris end:vcard --------------08F437D9EE25C6C96DFA71C2-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 09 01:26:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Rhtd-0006zi-00; Tue, 09 Jul 2002 01:26:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6986A1112F1; Tue, 9 Jul 2002 01:27:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA08850 for linac-eng-list; Mon, 8 Jul 2002 17:53:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA08846 for ; Mon, 8 Jul 2002 17:53:05 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id KAA32205 for ; Tue, 9 Jul 2002 10:31:05 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Tue, 9 Jul 2002 10:55:38 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 09 Jul 2002 10:51:54 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 09 Jul 2002 10:51:37 +1200 From: "Dave Pinchin" To: , Subject: Re: Screen Manager Error Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA08847 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Jul 2002 10:51:37 +1200 From: "Dave Pinchin" To: , Subject: Re: Screen Manager Error Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA08847 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, I have never seen a V6 machine but looking at the scenario I would suggest a software bug which must be refered to Varian ASAP giving as much detail as possible including reproducability. I would suggest the bug is not over serious and can be worked around so don't go into panic mode. But Varian are the only ones who can definitivly comment on the seriousness (or otherwise) of the issue. Dave >>> 8/07/02 23:45:23 >>> On a Clinac 2100 with 6.1 software, when using the console to rotate collimator or gantry we get screen manager errors, see the below: run-time error M611-math -floating point error stack under flow run time error R6001 -null pointer assignment C\VARIAN Things I've tried include: Dedicated keyboard Com and control processors Interface PCBs Timer controller Appreciate any input if anyone has ever seen this error. Thanks Fred Williams Oncology Equipment Repair Springfield, Illinois ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 09 13:29:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17RtBY-0002Qt-00; Tue, 09 Jul 2002 13:29:36 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F19791112F1; Tue, 9 Jul 2002 13:30:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA21387 for linac-eng-list; Tue, 9 Jul 2002 05:56:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id FAA21383 for ; Tue, 9 Jul 2002 05:56:15 -0500 (CDT) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Tue, 09 Jul 2002 07:52:59 -0300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 09 Jul 2002 07:52:54 -0300 From: "Carl Murphy" To: Subject: Stereotactic and service Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA21384 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 09 Jul 2002 07:52:54 -0300 From: "Carl Murphy" To: Subject: Stereotactic and service Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA21384 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Guys and gals: We are about to install the requried equipment and software for Stereotactic Radiosurgery and IRMT on two of our Varian linacs, including the Micro MLC from BrainLab. I would like to know how much service time and maintenance these require. Also, has anyone rec'd service training? How about technical docs and schematics? Thanks in advance. See you at RSEA! Carl Murphy _________________________________ Carl Murphy, C.E.T. Linear Accelerator Service Technologist Medical Physics Department Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax, Nova Scotia, Canada Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 04:06:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17S6s1-00063V-00; Wed, 10 Jul 2002 04:06:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6DE121112F1; Wed, 10 Jul 2002 04:06:58 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id UAA12809 for linac-eng-list; Tue, 9 Jul 2002 20:31:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA12801 for ; Tue, 9 Jul 2002 20:31:39 -0500 (CDT) From: clbartee@hsc.vcu.edu Received: from 0 (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id VAA06638; Tue, 9 Jul 2002 21:31:36 -0400 Message-Id: <200207100131.VAA06638@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1 User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: Stereotactic and service In-Reply-To: MIME-Version: 1.0 Cc: linac-eng@plato.aristotle.net To: =?iso-8859-1?q?=22Carl?= =?iso-8859-1?q?_Murphy=22?= Date: Tue, 09 Jul 2002 21:31:36 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu Content-Type: text/plain; charset=iso-8859-1 User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: Stereotactic and service In-Reply-To: Cc: linac-eng@plato.aristotle.net To: =?iso-8859-1?q?=22Carl?= =?iso-8859-1?q?_Murphy=22?= Date: Tue, 09 Jul 2002 21:31:36 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk ------------------- We have had a uMlC here at MCV for a few years now and have had minimal problems. We only do a couple of cases a day with the brainlab. Of course a full load would make a big difference in downtime. > Hi Guys and gals: > > We are about to install the requried equipment and software for Stereotactic Radiosurgery and IRMT on two of our Varian linacs, including the Micro MLC from BrainLab. > > I would like to know how much service time and maintenance these require. Also, has anyone rec'd service training? How about technical docs and schematics? > > Thanks in advance. > > See you at RSEA! > > Carl Murphy > > _________________________________ > Carl Murphy, C.E.T. > Linear Accelerator Service Technologist > Medical Physics Department > Nova Scotia Cancer Centre > QEII Health Sciences Centre > Halifax, Nova Scotia, Canada > Email: carl.murphy@cdha.nshealth.ca > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 15:24:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SHSW-00037u-00; Wed, 10 Jul 2002 15:24:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 25DD61112F4; Wed, 10 Jul 2002 15:25:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA24156 for linac-eng-list; Wed, 10 Jul 2002 07:54:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from whses01.wellmont.org (whses01.wellmont.org [151.102.96.168]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA24149 for ; Wed, 10 Jul 2002 07:54:15 -0500 (CDT) Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id <3TB9W366>; Wed, 10 Jul 2002 08:53:40 -0400 Message-ID: <7AF61AA0D5DBD511B2990090274E7316796951@whses02.wellmont.org> From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: Re-stringing ETR couch top panels Date: Wed, 10 Jul 2002 08:53:38 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: Re-stringing ETR couch top panels Date: Wed, 10 Jul 2002 08:53:38 -0400 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello to all, I am looking for a source to re-string the posterior and center spine panels (tennis rackets) used on the Varian ETR couch tops. I am also interested in a direct replacement for these panels if any exist. Carbon fiber panels perhaps? Any information would be most appreciated. Thank You, Marc 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 15:56:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SHwn-0003PD-00; Wed, 10 Jul 2002 15:56:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3FDC11112F4; Wed, 10 Jul 2002 15:56:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA24985 for linac-eng-list; Wed, 10 Jul 2002 08:28:05 -0500 (CDT) Received: from adsrv110.nki.nl (adsrv110.nki.nl [194.171.7.91]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA24981 for ; Wed, 10 Jul 2002 08:28:03 -0500 (CDT) From: clfikes@mail.mdanderson.org Received: from adsrv100.nki.nl ([194.171.7.35]) by adsrv110.nki.nl with Microsoft SMTPSVC(5.0.2195.2966); Wed, 10 Jul 2002 15:25:22 +0200 Received: from mail pickup service by adsrv100.nki.nl with Microsoft SMTPSVC; Wed, 10 Jul 2002 15:25:40 +0200 Received: from adsrv110.nki.nl ([194.171.7.91]) by adsrv100.nki.nl with Microsoft SMTPSVC(5.0.2195.4905); Wed, 26 Jun 2002 16:34:35 +0200 Received: from Aphrodite.nki.nl ([192.87.97.4]) by adsrv110.nki.nl with Microsoft SMTPSVC(5.0.2195.2966); Wed, 26 Jun 2002 16:03:41 +0200 Received: from Hades (Hades.nki.nl [192.87.97.6]) by Aphrodite.nki.nl (8.9.3+Sun/8.9.3) with SMTP id QAA11483 for ; Wed, 26 Jun 2002 16:03:36 +0200 (MET DST) Received: FROM plato.aristotle.net BY Hades ; Wed Jun 26 16:05:20 2002 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA12986 for linac-eng-list; Wed, 26 Jun 2002 08:36:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA12982 for ; Wed, 26 Jun 2002 08:36:56 -0500 (CDT) Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id IAA21383 for ; Wed, 26 Jun 2002 08:33:14 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BE4.004A3E02 ; Wed, 26 Jun 2002 08:30:55 -0500 X-Lotus-FromDomain: MDACC To: linac-eng@plato.aristotle.net Message-ID: <86256BE4.004A3D07.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 26 Jun 2002 08:33:51 -0500 Subject: pulse tank/maggy loads Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline X-OriginalArrivalTime: 26 Jun 2002 14:03:41.0937 (UTC) FILETIME=[471F1610:01C21D1A] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** From: clfikes@mail.mdanderson.org X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Lotus-FromDomain: MDACC To: linac-eng@plato.aristotle.net Date: Wed, 26 Jun 2002 08:33:51 -0500 Subject: pulse tank/maggy loads Content-type: text/plain; charset=us-ascii Content-Disposition: inline X-OriginalArrivalTime: 26 Jun 2002 14:03:41.0937 (UTC) FILETIME=[471F1610:01C21D1A] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Gentlemen, I need help putting together a set of maggy and pulse tank loads for our Varian 600C/D and 6EX Clinacs, and Siemens PRIMART, ME and MXE/6740 Mevatrons. I've used the loads before, but it's been awhile, and they were already assembled. The Varian machines have the new MG5349 maggies, and the Mevatrons use the 5349 and 5193. I've had some problems recently where the loads would have been very helpful. Thanks, Chad Fikes MD Anderson Cancer Center 713-792-3235 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 15:56:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SHx2-0003PH-00; Wed, 10 Jul 2002 15:56:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 72BDD1112F4; Wed, 10 Jul 2002 15:56:46 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA25400 for linac-eng-list; Wed, 10 Jul 2002 08:37:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA25396 for ; Wed, 10 Jul 2002 08:37:45 -0500 (CDT) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id C40981112F4; Wed, 10 Jul 2002 15:38:36 +0200 (METDST) Received: from (kriek.radcl.ruu.nl) [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SHfQ-0003Cs-00; Wed, 10 Jul 2002 15:38:04 +0200 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 10 Jul 02 15:33:41 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 10 Jul 02 15:33:25 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "'Linac Engineers List'" , "Falcinelli, Marc A" Date: Wed, 10 Jul 2002 15:33:24 +0200 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Re-stringing ETR couch top panels In-reply-to: <7AF61AA0D5DBD511B2990090274E7316796951@whses02.wellmont.org> X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: "'Linac Engineers List'" , "Falcinelli, Marc A" Date: Wed, 10 Jul 2002 15:33:24 +0200 Content-type: text/plain; charset=US-ASCII Subject: Re: Re-stringing ETR couch top panels In-reply-to: <7AF61AA0D5DBD511B2990090274E7316796951@whses02.wellmont.org> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk One manufacturer I know of that supplies Carbon Fibre Couch top inserts is SinMed. Website at http://www.sinmed.nl You'll find them under "Accessories" Regards Stuart From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: Re-stringing ETR couch top panels Date sent: Wed, 10 Jul 2002 08:53:38 -0400 > Hello to all, > I am looking for a source to re-string the posterior and center spine > panels (tennis rackets) used on the Varian ETR couch tops. I am also > interested in a direct replacement for these panels if any exist. Carbon > fiber panels perhaps? Any information would be most appreciated. > > Thank You, > Marc -------------- Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 16:26:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SIQX-0003il-00; Wed, 10 Jul 2002 16:26:45 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2AD261112F4; Wed, 10 Jul 2002 16:27:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA26336 for linac-eng-list; Wed, 10 Jul 2002 09:00:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtpgate.exempla.org (mail2.exempla.org [170.188.7.25]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA26332 for ; Wed, 10 Jul 2002 09:00:08 -0500 (CDT) Received: from LMC-Message_Server by smtpgate.exempla.org with Novell_GroupWise; Wed, 10 Jul 2002 07:59:20 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Wed, 10 Jul 2002 07:59:12 -0600 From: "James Lollar" To: , Subject: Re: Re-stringing ETR couch top panels Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA26333 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 10 Jul 2002 07:59:12 -0600 From: "James Lollar" To: , Subject: Re: Re-stringing ETR couch top panels Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA26333 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I too... am looking for a source to re-string or replace my Tennis Rackets on my Siemens ZXT Tables . Any info would be appreciated. Thanks in advance. James Lollar Linac Engineer Radiation Oncology St. Joseph Hospital Denver, Colo Phone:303-837-7795 E-Mail:lollarj@exempla.org >>> "Falcinelli, Marc A" 07/10 6:53 AM >>> Hello to all, I am looking for a source to re-string the posterior and center spine panels (tennis rackets) used on the Varian ETR couch tops. I am also interested in a direct replacement for these panels if any exist. Carbon fiber panels perhaps? Any information would be most appreciated. Thank You, Marc 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 17:50:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SJjB-0004LX-00; Wed, 10 Jul 2002 17:50:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 930A01112F4; Wed, 10 Jul 2002 17:50:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA28809 for linac-eng-list; Wed, 10 Jul 2002 10:12:11 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hcmemavgw01.ummhc.org (hcmemavgw01.ummhc.org [63.121.252.150]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA28805 for ; Wed, 10 Jul 2002 10:12:10 -0500 (CDT) Received: from 10.72.8.9 by hcmemavgw01.ummhc.org (InterScan E-Mail VirusWall NT); Wed, 10 Jul 2002 11:13:58 -0400 Received: by hcmemexch01.ummhc.org with Internet Mail Service (5.5.2653.19) id ; Wed, 10 Jul 2002 11:13:57 -0400 Message-ID: From: "Tomer, Alan" To: "'linac-eng@plato.aristotle.net'" Subject: Service Engineer Position Date: Wed, 10 Jul 2002 11:13:56 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Tomer, Alan" To: "'linac-eng@plato.aristotle.net'" Subject: Service Engineer Position Date: Wed, 10 Jul 2002 11:13:56 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk The University of Massachusetts Memorial Health Care has an employment opening for a service engineer in the Department of Radiation Oncology. The position responsibilities include the maintenance and repair of medical linear accelerators, simulators and other ancillary equipment associated with the clinical area. The department is equipped with five Varian medical linear accelerators, including Clinac 2300CD; 2100CD; 2100EX units, along with an Oldelft simulator and a Varian Ximatron simulator. This equipment is distributed among three campuses operated by the UMMHC radition oncology department. Candidates should have at least three years experience servicing radiotherapy equipment. Experience with Varian Clinacs, MLC, PV, Varis patient management software, Windows NT operating software and general computer operation will be a plus. Please forward inquires and resumes to: UMMHC Department of Radiation Therapy 55 Lake Avenue North Worcester, MA 01655 Attention: Alan Tomer HB200 FAX: 1-856-5006 E-mail: TomerA@ummhc.org 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 17:51:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SJkZ-0004Lp-00; Wed, 10 Jul 2002 17:51:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EC4D41112F4; Wed, 10 Jul 2002 17:52:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA29017 for linac-eng-list; Wed, 10 Jul 2002 10:20:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29013 for ; Wed, 10 Jul 2002 10:20:57 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Wed, 10 Jul 2002 08:20:26 -0700 Message-ID: From: "Wilson, Jim" To: "'linac-eng@plato.aristotle.net'" Subject: Linac Bulletin Board Posting Date: Wed, 10 Jul 2002 08:19:36 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'linac-eng@plato.aristotle.net'" Subject: Linac Bulletin Board Posting Date: Wed, 10 Jul 2002 08:19:36 -0700 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I recently posted a note about a pendant that I was making available. Thanks for all your responses to that. In the course of that, I received an email from Joe Schebler. This gentleman is having trouble with his subscription (he gets messages but can't post them). He asked me to post a help message for him. He has resubscribed without success and he is posting to, linac-eng@plato.aristotle.net. His email address is, joe-schebler@uiowa.edu. He would appreciate any assistance. Thank you. **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 18:31:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SKNK-0004Oy-00; Wed, 10 Jul 2002 18:31:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 27E5F1112F4; Wed, 10 Jul 2002 18:32:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA00562 for linac-eng-list; Wed, 10 Jul 2002 11:02:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA00558 for ; Wed, 10 Jul 2002 11:02:41 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: Re-stringing ETR couch top panels Date: Wed, 10 Jul 2002 12:02:11 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386C2@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Re-stringing ETR couch top panels Thread-Index: AcIoJRTrLS/Hu9THQg2Ek4JGox2/VgABby+g From: "Tim Cullen" To: "James Lollar" , , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA00559 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: Re-stringing ETR couch top panels Date: Wed, 10 Jul 2002 12:02:11 -0400 Thread-Topic: Re-stringing ETR couch top panels Thread-Index: AcIoJRTrLS/Hu9THQg2Ek4JGox2/VgABby+g From: "Tim Cullen" To: "James Lollar" , , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA00559 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I've used a company by the name of Linear Accelerator Support Services in Charlotte, NC. 704-553-7708. Tim > -----Original Message----- > From: James Lollar [mailto:lollarj@exempla.org] > Sent: Wednesday, July 10, 2002 9:59 AM > To: linac-eng@plato.aristotle.net; Marc_A_Falcinelli@Wellmont.org > Subject: Re: Re-stringing ETR couch top panels > > > I too... am looking for a source to re-string or replace my > Tennis Rackets on my Siemens ZXT Tables . Any info would be > appreciated. Thanks in advance. > > James Lollar > Linac Engineer > Radiation Oncology > St. Joseph Hospital > Denver, Colo > Phone:303-837-7795 > E-Mail:lollarj@exempla.org > > >>> "Falcinelli, Marc A" > 07/10 6:53 AM > >>> >>> > Hello to all, > I am looking for a source to re-string the posterior and > center spine panels (tennis rackets) used on the Varian ETR > couch tops. I am also interested in a direct replacement for > these panels if any exist. Carbon fiber panels perhaps? Any > information would be most appreciated. > > Thank You, > Marc > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 19:53:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SLeR-0004TX-00; Wed, 10 Jul 2002 19:53:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D58F71112F4; Wed, 10 Jul 2002 19:53:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA00577 for linac-eng-list; Wed, 10 Jul 2002 12:10:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA00564 for ; Wed, 10 Jul 2002 12:09:57 -0500 (CDT) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Wed, 10 Jul 2002 11:09:25 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Wed, 10 Jul 2002 11:08:54 -0600 From: "Robert Wood" To: Subject: A friends passing. Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_461A5A55.25440ED4" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 10 Jul 2002 11:08:54 -0600 From: "Robert Wood" To: Subject: A friends passing. Content-Type: multipart/alternative; boundary="=_461A5A55.25440ED4" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_461A5A55.25440ED4 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable A long time member of this list and a frequent contributer has passed = away. Chris Coyle passed away on June 21, 2002. He had been diagnosed with pancreatic cancer over a year earlier.=20 Cards and condolences may be sent to Lael Coyle, PO Box 1441, Issaquah, = Wa., 98027 Cindy Kearny from Swetish Cancer Institue provided me with this informatio= n. I had just talked with Chris a few times but I know that he was a = respected member of the Linac communitee and I would hope that some of you = who knew him well would provide a better memorial than I can with this = short note. --=_461A5A55.25440ED4 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
    A long time member of this list and a frequent contributer has = passed=20 away.
    Chris Coyle passed away on June 21, 2002.
    He had been diagnosed with pancreatic cancer over a year earlier. =
    Cards and condolences may be sent to Lael Coyle, PO Box 1441, = Issaquah,=20 Wa., 98027
    Cindy Kearny  from Swetish Cancer Institue provided me with=20 this information.
     
    I had just talked with Chris a few times but I know that he was a = respected=20 member of the Linac communitee and I would hope that some of you who = knew=20 him well would provide a better memorial than I can with this = short=20 note.
    --=_461A5A55.25440ED4-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 10 19:54:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SLfA-0004Tg-00; Wed, 10 Jul 2002 19:54:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CBADA1112F4; Wed, 10 Jul 2002 19:54:32 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA00821 for linac-eng-list; Wed, 10 Jul 2002 12:23:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d06.mx.aol.com (imo-d06.mx.aol.com [205.188.157.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA00814 for ; Wed, 10 Jul 2002 12:23:47 -0500 (CDT) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-d06.mx.aol.com (mail_out_v32.21.) id y.1ab.4e30e33 (3842) for ; Wed, 10 Jul 2002 13:22:47 -0400 (EDT) Message-ID: <1ab.4e30e33.2a5dc766@aol.com> Date: Wed, 10 Jul 2002 13:22:46 EDT Subject: 2100c computer change To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_1ab.4e30e33.2a5dc766_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Wed, 10 Jul 2002 13:22:46 EDT Subject: 2100c computer change To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_1ab.4e30e33.2a5dc766_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_1ab.4e30e33.2a5dc766_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all on list, I am looking to replace the computer on a Varian 2100c, serial #300 (or so). The software version is 2.37. The computer that needs to be replaced is an IBM PS-2. Can anyone recommend a suitable replacement? Thanks Mike Liddicote Accelerator Associates --part1_1ab.4e30e33.2a5dc766_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi to all on list,
           I am looking to replace the computer on a Varian 2100c, serial #300 (or so).  The software version is 2.37.  The computer that needs to be replaced is an IBM
    PS-2.  Can anyone recommend a suitable replacement?  Thanks
    Mike Liddicote
    Accelerator Associates     --part1_1ab.4e30e33.2a5dc766_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 08:50:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SXm8-0005K1-00; Thu, 11 Jul 2002 08:50:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B865B113648; Thu, 11 Jul 2002 02:55:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA18058 for linac-eng-list; Wed, 10 Jul 2002 19:34:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from UIHC-MXII.UIHC.UIOWA.EDU (uihc-mxii.uihc.uiowa.edu [129.255.210.177]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA18054 for ; Wed, 10 Jul 2002 19:34:05 -0500 (CDT) Received: from uihc-bh.uihc.uiowa.edu (uihc-web.uihc.uiowa.edu [129.255.210.35]) by UIHC-MXII.UIHC.UIOWA.EDU (8.11.6/8.11.2) with ESMTP id g6B0MN208092 for ; Wed, 10 Jul 2002 19:22:23 -0500 Received: by uihc-bh.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id <34VWK3LF>; Wed, 10 Jul 2002 19:33:51 -0500 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24015F77F5@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Unservoed doserate drop off Date: Wed, 10 Jul 2002 19:33:46 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Unservoed doserate drop off Date: Wed, 10 Jul 2002 19:33:46 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi gang, I need some ideas, here is the scoop! Varian CL-21EX, 18X, unservoed dose rate starts off at 340 in rep rate 3, then after about 1100 rads the dose rate has steadily decreased to 308 in 6X it starts off ok but slowly increases 5-8% I cant see anything changing on scope or screen meters dig. or analog meters, I expected to see the DeQing waveform changing, but it was rock steady. I tuned the machine so that it wouldnt trip underdose intlk, but for it to lose 15% of dose rate seems wrong to me any ideas would be considered if not tried Thanks PS machine is 2 1/2-3 years old, with orig tubes I believe Joe Schebler 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 08:50:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SXmJ-0005PR-00; Thu, 11 Jul 2002 08:50:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F38471112F4; Wed, 10 Jul 2002 21:03:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA02298 for linac-eng-list; Wed, 10 Jul 2002 13:28:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web11305.mail.yahoo.com (web11305.mail.yahoo.com [216.136.131.208]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA02294 for ; Wed, 10 Jul 2002 13:28:44 -0500 (CDT) Message-ID: <20020710182844.96445.qmail@web11305.mail.yahoo.com> Received: from [12.247.255.118] by web11305.mail.yahoo.com via HTTP; Wed, 10 Jul 2002 11:28:44 PDT Date: Wed, 10 Jul 2002 11:28:44 -0700 (PDT) From: Joe Czarnecki Subject: Looking for part number To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 10 Jul 2002 11:28:44 -0700 (PDT) From: Joe Czarnecki Subject: Looking for part number To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello list, I am looking for the part number for an item on a Ximatron CX with CT option. I am looking for the part number for the threaded stud that fastens the tray that goes in the film cassette holder when the sim does CT (like an aperature of sorts). The part number does not spell this part out. Any help will be appreciated. Thanks, Joe Czarnecki Chicago, IL __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 08:50:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SXmK-0005Q3-00; Thu, 11 Jul 2002 08:50:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B9E58112D5C; Thu, 11 Jul 2002 00:39:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA15133 for linac-eng-list; Wed, 10 Jul 2002 17:17:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA15129 for ; Wed, 10 Jul 2002 17:17:23 -0500 (CDT) Received: from icelus.cancerboard.ab.ca (icelus.cancerboard.ab.ca [164.102.20.50]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g6AMHnE20092; Wed, 10 Jul 2002 16:17:50 -0600 (MDT) Received: from cancerboard.ab.ca ([164.102.22.114]) by icelus.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g6AMHlw06510; Wed, 10 Jul 2002 16:17:47 -0600 (MDT) Message-ID: <3D2CB21E.2C198C87@cancerboard.ab.ca> Date: Wed, 10 Jul 2002 16:15:58 -0600 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Mailer: Mozilla 4.75 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: Tim Cullen , Linac List Subject: New Field and ODI Assy's References: <9AEEF1FB6254224AA355ED285F8491650386BE@EXCHVS2.medctr.ad.wfubmc.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 10 Jul 2002 16:15:58 -0600 From: Kurt Knibutat Organization: Tom Baker Cancer Centre X-Accept-Language: en To: Tim Cullen , Linac List Subject: New Field and ODI Assy's Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Tim We've had the pleasure of working with both new style assemblies on our CL21EX's. It took about 2.5 hrs to do the field light. The problem was a loose clamp screw. This was definitely aggravated by lack of experience for both us and the physicists. Rad/light field had to be checked. The ODI is a great finger burner as the assembly is red hot and does not have any screw adjustments but only clamp releases. You need to devise/adapt tools and pry points to effect the necessary moves. The nice big red knob is only for adjusting lateral position so that the image falls down the cross hair. My big concern with the field light is that the associated cooling fan turns off when the light does. This leaves the latent heat to damage the fan bearing. Routed immediately above the fan is the collimator windup, fiber optic bundle, for the MLC. Fan fails - fiber overheats - fiber fails. -- Kurt Knibutat Sr Technical Equipment Officer Tom Baker Cancer Centre (403) 670-1089 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 09:06:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SY2H-0005Xu-00; Thu, 11 Jul 2002 09:06:45 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9335C11418A; Thu, 11 Jul 2002 07:09:52 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id XAA23870 for linac-eng-list; Wed, 10 Jul 2002 23:52:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from UIHC-MXII.UIHC.UIOWA.EDU (uihc-mxii.uihc.uiowa.edu [129.255.210.177]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA23858 for ; Wed, 10 Jul 2002 23:52:07 -0500 (CDT) Received: from uihc-mail.uihc.uiowa.edu (uihc-mail.uihc.uiowa.edu [129.255.242.85]) by UIHC-MXII.UIHC.UIOWA.EDU (8.11.6/8.11.2) with ESMTP id g6B4eO209342 for ; Wed, 10 Jul 2002 23:40:24 -0500 Received: by uihc-mail.uihc.uiowa.edu with Internet Mail Service (5.5.2653.19) id <34VVQZCF>; Wed, 10 Jul 2002 23:51:52 -0500 Message-ID: <5D03ED7B9391D4119D9B0008C76B7B24015F77FC@uihc-mail2.uihc.uiowa.edu> From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Arcing pic Date: Wed, 10 Jul 2002 23:51:43 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/mixed; boundary="----_=_NextPart_000_01C22896.A73B4500" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Schebler, Joe" To: "'linac-eng@plato.aristotle.net'" Subject: Arcing pic Date: Wed, 10 Jul 2002 23:51:43 -0500 Content-Type: multipart/mixed; boundary="----_=_NextPart_000_01C22896.A73B4500" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_000_01C22896.A73B4500 Content-Type: text/plain; charset="iso-8859-1" <> This is a pic of our CL-18R Guide RF window, how where arcing was occuring, Varian polished it clean with a "special" pumice, worked out well, just thought you guys might find this pic interesting. Joe Schebler ------_=_NextPart_000_01C22896.A73B4500 Content-Type: image/jpeg; name="MVC-017F.JPG" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="MVC-017F.JPG" ------_=_NextPart_000_01C22896.A73B4500-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 09:23:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SYIf-0005fb-00; Thu, 11 Jul 2002 09:23:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 127F7113666; Thu, 11 Jul 2002 04:26:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA20033 for linac-eng-list; Wed, 10 Jul 2002 21:07:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web20807.mail.yahoo.com (web20807.mail.yahoo.com [216.136.226.196]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA20029 for ; Wed, 10 Jul 2002 21:07:03 -0500 (CDT) Message-ID: <20020711020702.99322.qmail@web20807.mail.yahoo.com> Received: from [210.176.130.246] by web20807.mail.yahoo.com via HTTP; Wed, 10 Jul 2002 19:07:02 PDT Date: Wed, 10 Jul 2002 19:07:02 -0700 (PDT) From: M chu Subject: GE lunar bone densitometer problem To: linac-eng@plato.aristotle.net In-Reply-To: <5D03ED7B9391D4119D9B0008C76B7B24015F77F5@uihc-mail2.uihc.uiowa.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 10 Jul 2002 19:07:02 -0700 (PDT) From: M chu Subject: GE lunar bone densitometer problem To: linac-eng@plato.aristotle.net In-Reply-To: <5D03ED7B9391D4119D9B0008C76B7B24015F77F5@uihc-mail2.uihc.uiowa.edu> Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk dear friends, we done a software upgrade of the Lunar DXP from v3.5 to v3.7. The doctor did not like the new version. We try to go back to v3.5, but the eprom did not recognise the program, and it did not work any more. Did anyone had simular experience? I wonder if we need a new eprom for the v3.5 before we can reload the v3.5 software? did someone know the contact person of GE whom may had a better idea of the software? our agent is our of town two week and we lost contact with him. thanks moises medical physics department pamela hospital hong kong __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 15:25:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Sdx3-0001TK-00; Thu, 11 Jul 2002 15:25:45 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 79C081112FA; Thu, 11 Jul 2002 15:26:01 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA02194 for linac-eng-list; Thu, 11 Jul 2002 07:49:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02190 for ; Thu, 11 Jul 2002 07:49:52 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: New Field and ODI Assy's Date: Thu, 11 Jul 2002 08:49:19 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386C4@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: New Field and ODI Assy's Thread-Index: AcIoaCbMbnrZmfpTR5a8vlU8mnJ1sAAbW89w From: "Tim Cullen" To: "Kurt Knibutat" , "Linac List" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA02191 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: New Field and ODI Assy's Date: Thu, 11 Jul 2002 08:49:19 -0400 Thread-Topic: New Field and ODI Assy's Thread-Index: AcIoaCbMbnrZmfpTR5a8vlU8mnJ1sAAbW89w From: "Tim Cullen" To: "Kurt Knibutat" , "Linac List" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA02191 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Kurt, Yeah, one wrong move on one of these assemblies usually means spending some time to get it back. I figured it would take at least an hour, give or take a few minutes. The field lamp looks like it's in one of those spots where if you're in a hurry you would try to change it without pulling the lead then after some lengthy time wasted you would curse a little then go ahead and pull the lead. Thanks for the input, I'm headed up to Montreal for the RSEA (RC) meeting this weekend and hope to see you guys there. Here's a message from the chairman of the RSEA formation committee, Tim Waldron. Sorry for the late posting but I think like everyone else there has been a little trouble getting some messages through. Subject: RSEA Meeting The First Annual meeting of the Radiotherapy Service Engineers Association (RSEA) will be held in conjunction with the American Association of Physicists in Medicine (AAPM), the Canadian Organization of Medical Physicists (COMP) and the Canadian College of Physicists in Medicine (CCPM). This meeting will be held July 13 - 14, 2002 at Le Palais des Congrès de Montréal, 201 Viger Avenue West, Montréal, Québec, Canada. Rooms 516 D and 516 E. Objective of this meeting shall be to officially commence operations: Register membership, conduct a business meeting, organize standing committees, present By-Laws and Rules for ratification, distribute material for election of officers, and conduct a continuing education program. Meeting registration information is available from our web page at www.linaceng.org. Housing information and links to Tourisme Montreal can be reached via links from the RSEA web page to the AAPM web page (www.aapm.org). Walk-in registration will be available at Le Palais des Congrès de Montréal, Viger Hall, second level. It is not necessary to attend this meeting to be a member of RSEA. If you are interested in being a part of this organization, please provide us with your contact information through our web page, and we will forward a membership packet to you shortly after the Montreal meeting. Here is the schedule for our meeting: Saturday, July 13, 2002 10:00 AM to 12:00 noon Annual Business Meeting 1:00 PM to 5:00 PM Organization of Committees, Committee meetings 6:00 PM to 8:00 PM Reception/Social Sunday, July 14, 2002 CONTINUING EDUCATION SESSIONS 8:00 AM to 9:00 AM Fundamentals of Modern Computer-controlled Medical Linear Accelerators, Presenter: Tim Waldron, MD Anderson Cancer Center An overview of the control systems employed by the three major manufacturers of medical linacs, with emphasis on safety and IMRT. 9:15 AM to 10:15 AM Lasers: "A splendid light has dawned on me...", - Albert Einstein, Presenter: Neil Johnston, LAP America An overview of laser history, operation, installation and future uses for lasers in the radiotherapy world. 10:30 AM to 11:45 AM IMRT Made Simple, Presenter: Jim Galvin, Thomas Jefferson University Hospital An examination of the ins and outs of successful implementation of IMRT 12:00 noon to 1:00 PM IMRT QA, Presenter: Don Roback, US Oncology Will review traditional quality assurance tests performed on a linear accelerator and present early tests developed for new technologies such as IMRT. Access to Exhibit Hall from 1:00 PM to 5:00 PM If you have not yet registered, and are planning to attend, there will be walk-in registration available (first paragraph). If you are unable to make the meeting, please do register for membership on the web page. Thank you all very much. Tim Waldron Chairman, RSEA Formation Committee > -----Original Message----- > From: Kurt Knibutat [mailto:kurtkn@CancerBoard.ab.ca] > Sent: Wednesday, July 10, 2002 6:16 PM > To: Tim Cullen; Linac List > Subject: New Field and ODI Assy's > > > Hi Tim > > We've had the pleasure of working with both new style > assemblies on our CL21EX's. It took about 2.5 hrs to do the > field light. > The problem was a loose clamp screw. This was definitely > aggravated by lack of experience for both us and the > physicists. Rad/light field had to be checked. > > The ODI is a great finger burner as the assembly is red hot > and does not have any screw adjustments but only clamp releases. > You need to devise/adapt tools and pry points to effect the > necessary moves. The nice big red knob is only for adjusting > lateral position so that the image falls down the cross hair. > > My big concern with the field light is that the associated > cooling fan turns off when the light does. This leaves the > latent heat to damage the fan bearing. Routed immediately > above the fan is the collimator windup, fiber optic bundle, > for the MLC. Fan fails - fiber overheats - fiber fails. > -- > Kurt Knibutat > Sr Technical Equipment Officer > Tom Baker Cancer Centre > (403) 670-1089 > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 17:18:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Sfhw-0002Ui-00; Thu, 11 Jul 2002 17:18:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3ED471112FC; Thu, 11 Jul 2002 17:18:29 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA05316 for linac-eng-list; Thu, 11 Jul 2002 09:52:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.healthlink.on.ca (ns.mtsinai.on.ca [205.211.160.10] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA05307 for ; Thu, 11 Jul 2002 09:52:33 -0500 (CDT) Received: from zombie.clinphys.pmh.toronto.on.ca ([192.168.1.24]) by smtp.healthlink.on.ca (Post.Office MTA v3.5.3 release 223 ID# 0-0U10L2S100V35) with ESMTP id ca for ; Thu, 11 Jul 2002 10:54:21 -0400 Received: by zombie.clinphys.pmh.toronto.on.ca with Internet Mail Service (5.5.2650.21) id <34XL6111>; Thu, 11 Jul 2002 10:51:51 -0400 Message-ID: From: "Abbassian, Farhoud" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Elekta SL18 Date: Thu, 11 Jul 2002 10:51:50 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C228EA.7D08EB30" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Abbassian, Farhoud" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Elekta SL18 Date: Thu, 11 Jul 2002 10:51:50 -0400 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C228EA.7D08EB30" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C228EA.7D08EB30 Content-Type: text/plain; charset="iso-8859-1" Hi, On my SL25s, the Quad Video for the colour computer is made by Colorgraphics Communication and is called Pro Lightning Series for PCI bus (p/n 612169C). They were also obsolete when I was trying to find a replacement about 2 or 3 years ago. I replaced them with Evolution Series (p/n 612182 for dual, p/n 612184 for quad). You should also update the video driver if you happen to get the Evolution Series. Here is the address of Colorgraphics; Colorgraphics Communication Co. 5980 Peachtree Road Atlanta, Ga 30341-1602 770-455-3921 www.colorgfx.com Hope this helps, Farhoud Abbassian Princess Margaret Hospital Toronto, Canada -----Original Message----- From: Xray Engineering RBH [mailto:BTS-Xray@health.qld.gov.au] Sent: Thursday, July 04, 2002 6:39 AM To: Beamguru@aol.com; linac-eng@plato.aristotle.net; tcullen@wfubmc.edu Subject: RE: Elekta SL18 We are trying to locate a Quadruple Head video card (PCI) for the colour computer that drives all monitor displays ( both inside the room and on the console) on the SL18 Linear Acc. Existing card is S3 trio 64 V2 Dx PCI card. Elekta part number is 4513.340.3087 We will be glad to hear from anyone who has any information. According to the local agent this card is now obsolete. Thanks X-Ray Engineers Royal Brisbane Hospital Brisbane, Australia. ********************************************************************** This e-mail, including any attachments sent with it, is confidential and for the sole use of the intended recipient(s). This confidentiality is not waived or lost if you receive it and you are not the intended recipient(s), or if it is transmitted/ received in error. Any unauthorised use, alteration, disclosure, distribution or review of this e-mail is prohibited. It may be subject to a statutory duty of confidentiality if it relates to health service matters. If you are not the intended recipient(s), or if you have received this e-mail in error, you are asked to immediately notify the sender by telephone or by return e-mail. You should also delete this e-mail message and destroy any hard copies produced. ********************************************************************** ------_=_NextPart_001_01C228EA.7D08EB30 Content-Type: text/html; charset="iso-8859-1"
    Hi,
     
    On my SL25s, the Quad Video for the colour computer is made by Colorgraphics Communication and is called Pro Lightning Series for PCI bus (p/n 612169C). They were also obsolete when I was trying to find a replacement about 2 or 3 years ago. I replaced them with Evolution Series (p/n 612182 for dual, p/n 612184 for quad). You should also update the video driver if you happen to get the Evolution Series. Here is the address of Colorgraphics;
     
    Colorgraphics Communication Co.
    5980 Peachtree Road Atlanta, Ga 30341-1602
    770-455-3921
     
    Hope this helps,
     
    Farhoud Abbassian 
    Princess Margaret Hospital
    Toronto, Canada     
    -----Original Message-----
    From: Xray Engineering RBH [mailto:BTS-Xray@health.qld.gov.au]
    Sent: Thursday, July 04, 2002 6:39 AM
    To: Beamguru@aol.com; linac-eng@plato.aristotle.net; tcullen@wfubmc.edu
    Subject: RE: Elekta SL18


    We are trying to locate a Quadruple Head video card (PCI) for the colour computer that drives all monitor displays ( both inside the room and on the console) on the SL18 Linear Acc.  Existing card is S3 trio 64 V2 Dx PCI card. Elekta part number is 4513.340.3087
    We will be glad to hear from anyone who has any information. According to the local agent this card is now obsolete.
     
    Thanks
    X-Ray Engineers
    Royal Brisbane Hospital
    Brisbane, Australia.


    **********************************************************************
    This e-mail, including any attachments sent with it, is confidential
    and for the sole use of the intended recipient(s). This confidentiality
    is not waived or lost if you receive it and you are not the intended
    recipient(s), or if it is transmitted/ received in error.

    Any unauthorised use, alteration, disclosure, distribution or review
    of this e-mail is prohibited. It may be subject to a statutory duty of
    confidentiality if it relates to health service matters.

    If you are not the intended recipient(s), or if you have received this
    e-mail in error, you are asked to immediately notify the sender by
    telephone or by return e-mail. You should also delete this e-mail
    message and destroy any hard copies produced.
    **********************************************************************
    ------_=_NextPart_001_01C228EA.7D08EB30-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 17:18:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Sfhw-0002Uj-00; Thu, 11 Jul 2002 17:18:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F3E481112F9; Thu, 11 Jul 2002 17:18:29 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA04912 for linac-eng-list; Thu, 11 Jul 2002 09:39:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA04906 for ; Thu, 11 Jul 2002 09:39:20 -0500 (CDT) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id JAA28461; Thu, 11 Jul 2002 09:35:20 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BF3.004FF46A ; Thu, 11 Jul 2002 09:33:19 -0500 X-Lotus-FromDomain: MDACC To: "Schebler, Joe" Cc: "'linac-eng@plato.aristotle.net'" Message-ID: <86256BF3.004FF385.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 11 Jul 2002 09:36:00 -0500 Subject: Re: Unservoed doserate drop off Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Schebler, Joe" Cc: "'linac-eng@plato.aristotle.net'" Date: Thu, 11 Jul 2002 09:36:00 -0500 Subject: Re: Unservoed doserate drop off Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Joe, Your klystron is a likely suspect, since very small changes in Forward Power can cause this. Also, I've seen the De-Qing tube fail so that there is just a slight change in the de-qing level. You can rule this out by making sure that you can control the de-qing level with PFN V after the drifting occurs. I would also verify that PFN V is peaked with the PFN servo off. And if you have to change it, make sure that you measure Kly I at the pulse tank and verify that it's not above nameplate. This is all assuming that a lot of other things are good, like Klystron filaments and gun current. You might also want to monitor your RF Driver waveform. Good luck. Keep us posted. Chad Fikes MD Anderson Cancer Center "Schebler, Joe" on 07/10/2002 07:33:46 PM To: "'linac-eng@plato.aristotle.net'" cc: (bcc: Chad L. Fikes/MDACC) Subject: Unservoed doserate drop off Hi gang, I need some ideas, here is the scoop! Varian CL-21EX, 18X, unservoed dose rate starts off at 340 in rep rate 3, then after about 1100 rads the dose rate has steadily decreased to 308 in 6X it starts off ok but slowly increases 5-8% I cant see anything changing on scope or screen meters dig. or analog meters, I expected to see the DeQing waveform changing, but it was rock steady. I tuned the machine so that it wouldnt trip underdose intlk, but for it to lose 15% of dose rate seems wrong to me any ideas would be considered if not tried Thanks PS machine is 2 1/2-3 years old, with orig tubes I believe Joe Schebler 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 17:18:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Sfhw-0002Uk-00; Thu, 11 Jul 2002 17:18:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1E4381112FB; Thu, 11 Jul 2002 17:18:29 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA05244 for linac-eng-list; Thu, 11 Jul 2002 09:49:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA05240 for ; Thu, 11 Jul 2002 09:49:24 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: New Field and ODI Assy's Date: Thu, 11 Jul 2002 10:48:54 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386C5@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: New Field and ODI Assy's Thread-Index: AcIo4stgggbih0XfRXOEn8HFBEGe8gAAY+sQ From: "Tim Cullen" To: "shane woodall" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA05241 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Subject: RE: New Field and ODI Assy's Date: Thu, 11 Jul 2002 10:48:54 -0400 Thread-Topic: New Field and ODI Assy's Thread-Index: AcIo4stgggbih0XfRXOEn8HFBEGe8gAAY+sQ From: "Tim Cullen" To: "shane woodall" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA05241 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Shane, I think I speak for everyone when I say "I'd pay to see that." I'll apologize for the formation committee's sparse distribution of info. This whole process has been slow to come about and believe me, there is no way to rush it. A lot of work has been done by the AAPM, for which I think we all can be very grateful, and the formation committee members. All who have busy schedules. We tried to get the word out through mailings with the AAPM news letter and through the web page (www.linaceng.org) regarding the meeting in Montreal. The organization part of the "org" is part of the objective of this meeting. We hope to regain some of the momentum established in Chicago with the various committees. I think we all enjoyed the meeting in Chicago and the opportunity to talk with old friends and peers. The only difference in Montreal will be that we are an established association (RSEA) prepared to take on membership, offer educational presentations, and conduct business. If you are unable to make this meeting the info for becoming a member will be available to individuals who enter their contact information via the website. Again I apologize and can assure you the flow will improve. Feel free to contact me for info or check back at the website for updates from time to time. Please keep in mind, not only the webpage is under construction, the whole association is. Tim Cullen > -----Original Message----- > From: shane woodall [mailto:swoodall@msn.com] > Sent: Thursday, July 11, 2002 9:57 AM > To: Tim Cullen; kurtkn@CancerBoard.ab.ca; > linac-eng@plato.aristotle.net > Subject: RE: New Field and ODI Assy's > > > Many times i had inquired about RSEA with no reply have aslo > talked to > others who have had the same. What does it take to find out > more about this > association?(I Can Juggle and stand on one leg) > > Shane Woodall 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 18:13:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SgZW-0002sJ-00; Thu, 11 Jul 2002 18:13:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B91EB1112FB; Thu, 11 Jul 2002 18:13:52 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA07008 for linac-eng-list; Thu, 11 Jul 2002 10:36:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r03.mx.aol.com (imo-r03.mx.aol.com [152.163.225.99]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA07004 for ; Thu, 11 Jul 2002 10:36:44 -0500 (CDT) From: OER123@aol.com Received: from OER123@aol.com by imo-r03.mx.aol.com (mail_out_v32.21.) id y.b6.e4769d3 (16637) for ; Thu, 11 Jul 2002 11:35:59 -0400 (EDT) Message-ID: Date: Thu, 11 Jul 2002 11:35:59 EDT Subject: 1140 CXL Thyratron Failures To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_b6.e4769d3.2a5effdf_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: OER123@aol.com Date: Thu, 11 Jul 2002 11:35:59 EDT Subject: 1140 CXL Thyratron Failures To: linac-eng@plato.aristotle.net Content-Type: multipart/alternative; boundary="part1_b6.e4769d3.2a5effdf_boundary" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk --part1_b6.e4769d3.2a5effdf_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I replaced main thyratron in a 2100C that was blooming after 800 mu's causing HVOCs. Put in CXL from T.O. and my keep alive voltage was 300 vdc. Tube worked for about a week, the keep alive came down to about 120 vdc, it was causing instaneous HVOC. Reinstalled the original 1140 tube and the keep alive was 25 vdc and it ran clinically with no problems. I have repeated these same steps with 3 other CXL tubes with similar results. Each time I reinstall the original tube there are no problems clinically. Fred Williams Oncology Equipment Repair Springfield, Illinois --part1_b6.e4769d3.2a5effdf_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit I replaced main thyratron in a 2100C that was blooming after 800 mu's causing HVOCs.  Put in CXL from T.O. and my keep alive voltage was 300 vdc.  Tube worked for about a week, the keep alive came down to about 120 vdc, it was causing instaneous HVOC.  Reinstalled the original 1140 tube and the keep alive was 25 vdc and it ran clinically with no problems.

    I have repeated these same steps with 3 other CXL tubes with similar results.  Each time I reinstall the original tube there are no problems clinically.

    Fred Williams
    Oncology Equipment Repair
    Springfield, Illinois     --part1_b6.e4769d3.2a5effdf_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 18:54:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ShDL-0002ui-00; Thu, 11 Jul 2002 18:54:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 896971112FC; Thu, 11 Jul 2002 18:55:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA09028 for linac-eng-list; Thu, 11 Jul 2002 11:33:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09024 for ; Thu, 11 Jul 2002 11:33:03 -0500 (CDT) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id LAA08716; Thu, 11 Jul 2002 11:29:12 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BF3.005A649C ; Thu, 11 Jul 2002 11:27:19 -0500 X-Lotus-FromDomain: MDACC To: clbartee@hsc.vcu.edu Cc: joe-schebler@uiowa.edu, linac-eng@plato.aristotle.net Message-ID: <86256BF3.005A633E.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 11 Jul 2002 11:29:59 -0500 Subject: Re: Unservoed doserate drop off Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: clbartee@hsc.vcu.edu Cc: joe-schebler@uiowa.edu, linac-eng@plato.aristotle.net Date: Thu, 11 Jul 2002 11:29:59 -0500 Subject: Re: Unservoed doserate drop off Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk On a KLM machine, you don't normally need to peak PFN V to tune the machine. But the '3 amps below nameplate' is just a guideline. I put in a new klystron and had to set KLY I for more than 3 amps below. If it's not peaked, then the PFN servo will try to peak it for you - which will cause dose rate drifting. If you're not doing IMRT then you can probably get away with that, but if you need instantaneous full dose rate multiple times per treatment field, then will want to make sure that PFN V is peaked. If it's not, then it may point to another problem or it may just need a little tweaking. Just be sure you don't exceed the klystron nameplate values. Chad Fikes MD Anderson Cancer Center clbartee@hsc.vcu.edu on 07/13/2002 08:14:39 AM To: clfikes@mail.mdanderson.org cc: "=?iso-8859-1?q?=22Schebler"@arrakis.vcu.edu, ?= Joe" , ""'linac-eng@plato.aristotle.net'"" (bcc: Chad L. Fikes/MDACC) Subject: Re: Unservoed doserate drop off ------------------- > If this is klystron linear mode, I don't think you peak the pfn. You set it to 2 amps below nameplate and peak rf driver. I would check load power 2 to make sure guide acceptance is ok and you don't have an afc problem. after 1100 rads you are probably drifting to one side of the rf driver freq window. Just a thought, > > Joe, > > Your klystron is a likely suspect, since very small changes in Forward Power can > cause this. Also, I've seen the De-Qing tube fail so that there is just a > slight change in the de-qing level. You can rule this out by making sure that > you can control the de-qing level with PFN V after the drifting occurs. I would > also verify that PFN V is peaked with the PFN servo off. And if you have to > change it, make sure that you measure Kly I at the pulse tank and verify that > it's not above nameplate. This is all assuming that a lot of other things are > good, like Klystron filaments and gun current. You might also want to monitor > your RF Driver waveform. > > Good luck. Keep us posted. > > Chad Fikes > MD Anderson Cancer Center > > > > > > "Schebler, Joe" on 07/10/2002 07:33:46 PM > > To: "'linac-eng@plato.aristotle.net'" > cc: (bcc: Chad L. Fikes/MDACC) > > Subject: Unservoed doserate drop off > > > > > Hi gang, > I need some ideas, here is the scoop! > Varian CL-21EX, 18X, unservoed dose rate starts off at 340 in rep rate 3, > then after about 1100 rads the dose rate has steadily decreased to 308 > in 6X it starts off ok but slowly increases 5-8% > I cant see anything changing on scope or screen meters dig. or analog > meters, I expected to see the DeQing waveform changing, but it was rock > steady. > I tuned the machine so that it wouldnt trip underdose intlk, but for it to > lose 15% of dose rate seems wrong to me > any ideas would be considered if not tried > Thanks > > PS machine is 2 1/2-3 years old, with orig tubes I believe > > Joe Schebler > > > > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 18:54:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ShDL-0002uj-00; Thu, 11 Jul 2002 18:54:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 459D31112FB; Thu, 11 Jul 2002 18:55:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA08343 for linac-eng-list; Thu, 11 Jul 2002 11:14:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA08335 for ; Thu, 11 Jul 2002 11:14:48 -0500 (CDT) From: clbartee@hsc.vcu.edu Received: from 0 (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id MAA26826; Thu, 11 Jul 2002 12:14:39 -0400 Message-Id: <200207111614.MAA26826@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: <86256BF3.004FF385.00@utm-notesob1.mdacc.tmc.edu> Cc: =?iso-8859-1?q?=22Schebler@arrakis.vcu.edu, ?= =?iso-8859-1?q?_Joe=22?= , "=?iso-8859-1?q?=22'linac-eng@plato.aristotle.net'=22?=" User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: Unservoed doserate drop off MIME-Version: 1.0 To: clfikes@mail.mdanderson.org Date: Thu, 11 Jul 2002 12:14:39 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: <86256BF3.004FF385.00@utm-notesob1.mdacc.tmc.edu> Cc: =?iso-8859-1?q?=22Schebler@arrakis.vcu.edu, ?= =?iso-8859-1?q?_Joe=22?= , "=?iso-8859-1?q?=22'linac-eng@plato.aristotle.net'=22?=" User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: Unservoed doserate drop off To: clfikes@mail.mdanderson.org Date: Thu, 11 Jul 2002 12:14:39 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk ------------------- > If this is klystron linear mode, I don't think you peak the pfn. You set it to 2 amps below nameplate and peak rf driver. I would check load power 2 to make sure guide acceptance is ok and you don't have an afc problem. after 1100 rads you are probably drifting to one side of the rf driver freq window. Just a thought, > > Joe, > > Your klystron is a likely suspect, since very small changes in Forward Power can > cause this. Also, I've seen the De-Qing tube fail so that there is just a > slight change in the de-qing level. You can rule this out by making sure that > you can control the de-qing level with PFN V after the drifting occurs. I would > also verify that PFN V is peaked with the PFN servo off. And if you have to > change it, make sure that you measure Kly I at the pulse tank and verify that > it's not above nameplate. This is all assuming that a lot of other things are > good, like Klystron filaments and gun current. You might also want to monitor > your RF Driver waveform. > > Good luck. Keep us posted. > > Chad Fikes > MD Anderson Cancer Center > > > > > > "Schebler, Joe" on 07/10/2002 07:33:46 PM > > To: "'linac-eng@plato.aristotle.net'" > cc: (bcc: Chad L. Fikes/MDACC) > > Subject: Unservoed doserate drop off > > > > > Hi gang, > I need some ideas, here is the scoop! > Varian CL-21EX, 18X, unservoed dose rate starts off at 340 in rep rate 3, > then after about 1100 rads the dose rate has steadily decreased to 308 > in 6X it starts off ok but slowly increases 5-8% > I cant see anything changing on scope or screen meters dig. or analog > meters, I expected to see the DeQing waveform changing, but it was rock > steady. > I tuned the machine so that it wouldnt trip underdose intlk, but for it to > lose 15% of dose rate seems wrong to me > any ideas would be considered if not tried > Thanks > > PS machine is 2 1/2-3 years old, with orig tubes I believe > > Joe Schebler > > > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 11 22:00:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Sk7Q-00038S-00; Thu, 11 Jul 2002 22:00:52 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F3ECE1112F9; Thu, 11 Jul 2002 22:01:03 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA13131 for linac-eng-list; Thu, 11 Jul 2002 14:07:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA13127 for ; Thu, 11 Jul 2002 14:07:36 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/related; type="multipart/alternative"; boundary="----_=_NextPart_001_01C2290E.2494E034" Subject: Flattening Filter for 6X Date: Thu, 11 Jul 2002 15:07:03 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650389A7@EXCHVS2.medctr.ad.wfubmc.edu> X-MS-Has-Attach: yes Thread-Topic: Flattening Filter for 6X Thread-Index: AcIpDmIiUz+C9WXeSSOn/9H0MGrqCQ== From: "Tim Cullen" To: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: multipart/related; type="multipart/alternative"; boundary="----_=_NextPart_001_01C2290E.2494E034" Subject: Flattening Filter for 6X Date: Thu, 11 Jul 2002 15:07:03 -0400 X-MS-Has-Attach: yes Thread-Topic: Flattening Filter for 6X Thread-Index: AcIpDmIiUz+C9WXeSSOn/9H0MGrqCQ== From: "Tim Cullen" To: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------_=_NextPart_001_01C2290E.2494E034 Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01C2290E.2494E034" ------_=_NextPart_002_01C2290E.2494E034 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I was just asked a question I'm not 100% positive about the answer. What is the flattening filter on the Varian 600C 6MV unit made of. Is it lead, copper, or alloy? =20 =20 Tim Cullen Wake Forest University Baptist Medical Center Radiation Oncology Department ------_=_NextPart_002_01C2290E.2494E034 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    I was just asked a question I'm = not 100%=20 positive about the answer. What is the flattening filter on the Varian = 600C 6MV=20 unit made of. Is it lead, copper, or alloy?
     
     
    Tim Cullen
    Wake Forest University Baptist Medical Center
    Radiation Oncology Department
    =00 ------_=_NextPart_002_01C2290E.2494E034-- ------_=_NextPart_001_01C2290E.2494E034 Content-Type: image/gif; name="tech.gif" Content-Transfer-Encoding: base64 Content-ID: <720145618@11072002-2D1A> Content-Description: tech.gif Content-Location: tech.gif R0lGODlhFAAUAPcAAP//////zP//mf//Zv//M///AP/M///MzP/Mmf/MZv/MM//MAP+Z//+ZzP+Z mf+ZZv+ZM/+ZAP9m//9mzP9mmf9mZv9mM/9mAP8z//8zzP8zmf8zZv8zM/8zAP8A//8AzP8Amf8A Zv8AM/8AAMz//8z/zMz/mcz/Zsz/M8z/AMzM/8zMzMzMmczMZszMM8zMAMyZ/8yZzMyZmcyZZsyZ M8yZAMxm/8xmzMxmmcxmZsxmM8xmAMwz/8wzzMwzmcwzZswzM8wzAMwA/8wAzMwAmcwAZswAM8wA AJn//5n/zJn/mZn/Zpn/M5n/AJnM/5nMzJnMmZnMZpnMM5nMAJmZ/5mZzJmZmZmZZpmZM5mZAJlm /5lmzJlmmZlmZplmM5lmAJkz/5kzzJkzmZkzZpkzM5kzAJkA/5kAzJkAmZkAZpkAM5kAAGb//2b/ zGb/mWb/Zmb/M2b/AGbM/2bMzGbMmWbMZmbMM2bMAGaZ/2aZzGaZmWaZZmaZM2aZAGZm/2ZmzGZm mWZmZmZmM2ZmAGYz/2YzzGYzmWYzZmYzM2YzAGYA/2YAzGYAmWYAZmYAM2YAADP//zP/zDP/mTP/ ZjP/MzP/ADPM/zPMzDPMmTPMZjPMMzPMADOZ/zOZzDOZmTOZZjOZMzOZADNm/zNmzDNmmTNmZjNm MzNmADMz/zMzzDMzmTMzZjMzMzMzADMA/zMAzDMAmTMAZjMAMzMAAAD//wD/zAD/mQD/ZgD/MwD/ AADM/wDMzADMmQDMZgDMMwDMAACZ/wCZzACZmQCZZgCZMwCZAABm/wBmzABmmQBmZgBmMwBmAAAz /wAzzAAzmQAzZgAzMwAzAAAA/wAAzAAAmQAAZgAAMwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAAFAAUAEAIQwBJCBxI sKBBAAgTKlyYUCDDhwsdQpwoceLDihYjksh4cSNHjR9BhmzocSQAjCFRflTJkWVGlxZhUiw5UiZE gzhzBgQAOw== ------_=_NextPart_001_01C2290E.2494E034-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 12 01:37:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SnVQ-0003L3-00; Fri, 12 Jul 2002 01:37:52 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2247F1112F9; Fri, 12 Jul 2002 01:38:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA21935 for linac-eng-list; Thu, 11 Jul 2002 18:02:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from burnia.dmz.health.nsw.gov.au (burnia.dmz.health.nsw.gov.au [203.5.110.252]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id SAA21931 for ; Thu, 11 Jul 2002 18:02:01 -0500 (CDT) Received: by burnia.dmz.health.nsw.gov.au; (5.65v4.0/1.3/10May95) id AA26242; Fri, 12 Jul 2002 09:01:27 +1000 Received: from mxscan ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.0-24 #44005) with SMTP id <01KK02S1LDKY003SE3@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Fri, 12 Jul 2002 09:01:22 -0500 (EST) Received: from DOH_HUB-Message_Server by doh.health.nsw.gov.au with Novell_GroupWise; Fri, 12 Jul 2002 08:59:34 +1000 Date: Fri, 12 Jul 2002 08:58:14 +1000 From: Vince Reynolds Subject: Picture speaks a thousand words To: linac-eng@plato.aristotle.net Message-Id: Mime-Version: 1.0 X-Mailer: Novell GroupWise 5.5.2 Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-ce10d391-f941-435f-bb5c-c820ee94038b" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 12 Jul 2002 08:58:14 +1000 From: Vince Reynolds Subject: Picture speaks a thousand words To: linac-eng@plato.aristotle.net Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-ce10d391-f941-435f-bb5c-c820ee94038b" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPartTM-000-ce10d391-f941-435f-bb5c-c820ee94038b Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Thanks to Joe Schebler for the window picture showing the arcing. I personally would welcome more photos in the list communications Vince Reynolds Royal North Shore Hospital Sydney ------=_NextPartTM-000-ce10d391-f941-435f-bb5c-c820ee94038b Content-Type: text/plain; name="InterScan_Disclaimer.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="InterScan_Disclaimer.txt" This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health. ------=_NextPartTM-000-ce10d391-f941-435f-bb5c-c820ee94038b-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 12 05:58:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17SrZo-0003WB-00; Fri, 12 Jul 2002 05:58:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 60A6E1112F9; Fri, 12 Jul 2002 05:58:44 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id WAA27859 for linac-eng-list; Thu, 11 Jul 2002 22:33:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA27855 for ; Thu, 11 Jul 2002 22:33:17 -0500 (CDT) From: clbartee@hsc.vcu.edu Received: from 0 (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id XAA20632; Thu, 11 Jul 2002 23:33:16 -0400 Message-Id: <200207120333.XAA20632@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: Cc: linac-eng@plato.aristotle.net User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: 1140 CXL Thyratron Failures MIME-Version: 1.0 To: OER123@aol.com Date: Thu, 11 Jul 2002 23:33:16 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: Cc: linac-eng@plato.aristotle.net User-Agent: IMHO/0.98 (Webmail for Roxen) Subject: Re: 1140 CXL Thyratron Failures To: OER123@aol.com Date: Thu, 11 Jul 2002 23:33:16 -500 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk What serial number machine do you have? ------------------- > I replaced main thyratron in a 2100C that was blooming after 800 mu's causing > HVOCs. Put in CXL from T.O. and my keep alive voltage was 300 vdc. Tube > worked for about a week, the keep alive came down to about 120 vdc, it was > causing instaneous HVOC. Reinstalled the original 1140 tube and the keep > alive was 25 vdc and it ran clinically with no problems. > > I have repeated these same steps with 3 other CXL tubes with similar results. > Each time I reinstall the original tube there are no problems clinically. > > Fred Williams > Oncology Equipment Repair > Springfield, Illinois > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 15 11:39:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17U2Ju-00084C-00; Mon, 15 Jul 2002 11:39:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B64131112F7; Mon, 15 Jul 2002 11:38:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA28310 for linac-eng-list; Mon, 15 Jul 2002 03:53:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from doros.ulleval.no ([158.36.186.9]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA28306 for ; Mon, 15 Jul 2002 03:53:01 -0500 (CDT) Received: from bacchus.ullevaal.no (unverified) by doros.ulleval.no (Content Technologies SMTPRS 4.2.10) with ESMTP id for ; Mon, 15 Jul 2002 10:56:44 +0200 Received: from atlas.ullevaal.uus.no (unverified) by bacchus.ullevaal.no (Content Technologies SMTPRS 4.2.10) with ESMTP id for ; Mon, 15 Jul 2002 10:54:24 +0200 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Disposition-Notification-To: "Haugsnes Anne Berit" Subject: Sec feedback Mill MLC Date: Mon, 15 Jul 2002 10:52:27 +0200 Message-ID: <4F756D76DDBDE147A1CE1643F3764F74015A78@atlas.ullevaal.uus.no> Thread-Topic: Sec feedback Mill MLC Thread-Index: AcIr3Oolifet65eyEda1cwAQWmklIA== From: "Haugsnes Anne Berit" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA28307 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Disposition-Notification-To: "Haugsnes Anne Berit" Subject: Sec feedback Mill MLC Date: Mon, 15 Jul 2002 10:52:27 +0200 Thread-Topic: Sec feedback Mill MLC Thread-Index: AcIr3Oolifet65eyEda1cwAQWmklIA== From: "Haugsnes Anne Berit" To: X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA28307 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi! I'm haveing a problem with my Mill MLC. I get secondary feedback error only for some patients and only for some fields. If I change the the planned MLC field (that is drag some of the leafs and creat a small gap where the jaws are) it's okay. What could be wrong. Do you think it would help if I just clean the slides where the sec feedback wipers slide or is it software? Best regards, Anne Berit Haugsnes Engineer Dept. of Oncology Ulleval University Hospital Oslo, Norway +47 23016538 IKKE SENSITIVT INNHOLD (necessary subheading due to security, please disregard) ********************************************************************** This footnote confirms that this email message has been swept for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 15 18:34:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17U8no-00042d-00; Mon, 15 Jul 2002 18:34:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 528801112F3; Mon, 15 Jul 2002 18:33:37 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA05921 for linac-eng-list; Mon, 15 Jul 2002 10:43:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from BIOMED.MED.YALE.EDU (biomed.med.yale.edu [130.132.232.48]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA05916 for ; Mon, 15 Jul 2002 10:43:55 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.0-24 #37386) with ESMTP id <01KK4FAOHAEO009WRW@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Mon, 15 Jul 2002 11:43:10 -0400 (EDT) Date: Mon, 15 Jul 2002 11:40:25 -0400 From: "Peter E. Vitali" Subject: MLC Secondary Feed Back Errors. To: "Linac-Engineers, Listserver" Message-id: <3D32ECAE.BF90B599@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 15 Jul 2002 11:40:25 -0400 From: "Peter E. Vitali" Subject: MLC Secondary Feed Back Errors. To: "Linac-Engineers, Listserver" Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good Morning All: Thought I would give you a fix to a Secondary Feed Back Problem that we had on our 1&1/2 year old 120 Millennium MLC. MLC 1295, Installed 9-2000. Software: Version 6.2. Problem: Recently we started getting many A-ide Secondary Feed Back Errors which caused Hardware Failures on the MLC if they happened when the Watch Dog Time Out occurred . These are not one leaf type of error but whole side errors which repeat and repeat until either a Watch Dog Time Out occurs or the machine is Beamed On. The other symptom was that it would happen when the gantry was at angles other than 180 or O (Varian Scale). We noticed the gantry angle involvement so this led us to believe the problem was in the head and not in the controller. Initially we suspected we had a gantry fiber optics cable problem.. After removing the MLC cover and checking for fiber optics problems by swapping fiber optic cables we notice no change in the frequency of the problem with the cover off but that the frequency went up when we replaced the cover. This lead us now to believe that the problem had more to do with the cover disturbing something. We removed the cover and did a visual check of the Boards on the A-side. While checking the boards on the A-side we touched the cable between the Power Distribution Board and the A-side Head Transceiver Board. This caused the Green Led on the A-side Head Transceiver board to go off and the Red Led to come on. We also found the that anywhere on the Power Distribution Board that we touched we could get the same problem to occur. We replaced the Power Distribution Board and that cleared up some of the problem in that we now only had the problem when we touched the cable connecting the two boards. We ordered a new A side cable and replaced it the next day. The problem cleared up some what but we could still get it to happen intermittently when we touched the new cable or replaced the cover. We observed that the cable between the two boards formed a "C" type curve which extended the middle of the curve over the side of the "Long Jaw Accessory Cover" of the Gantry that the MLC cover has to fit into. This meant that when we put the collimator cover on we had to push against this cable to get the cover to go on correctly. In retrospect, we always had this problem when replacing the cover. This pushing on the cable then flexed the Power Distribution Board and the A side Head Transceiver Board. Over time, replacing motors and doing PMIs the constant pushing and releasing by removing and replacing the cover may have caused problems on the Power Distribution Board Connectors to the Cable. Since the old cable and new cable were constructed exactly the same we believe the problem to be with the construction of the cable. While replacing the cable we noticed that they seemed to be longer than the space between the two boards. When we plugged the cable into both board sockets, both boards had to be flexed inward to make up for this extra length. Our Solution: The cable between the two boards is constructed out of five or six smaller cables Ty-Rap (Plastic Cable Ties) together. By cutting some of the Ty-Raps we were able to push the cables back even with the boards, at least a 1/2 inch, (13mm) away from the inside edge of the MLC cover. Doing this also released the pressure on the boards since the cables were free to move and adjust to the distance between the boards individually. Now if we press on either the Power Distribution , A-side Head Transceiver Board or the cable we get no A-side Secondary Feed Back Errors. Note: You may also have to replace the Power Distribution board since it may have damage on it that you cannot repair. Note: On our new 21EX-S #16 we had the same problem replacing the MLC collimator cover. We did the same thing with the A-side Cable before we start to have this problems. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 15 18:36:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17U8ph-00042o-00; Mon, 15 Jul 2002 18:36:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5EDE01112F5; Mon, 15 Jul 2002 18:35:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA05740 for linac-eng-list; Mon, 15 Jul 2002 10:35:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server108.phsa.ca (mail.bccancer.bc.ca [209.139.228.218]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA05736 for ; Mon, 15 Jul 2002 10:35:06 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254] RDNS failed) by server108.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Mon, 15 Jul 2002 08:36:21 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id <3VBTHN18>; Mon, 15 Jul 2002 08:28:43 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA001FE2CFE@SERVER20> From: Don Melsness To: "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Mon, 15 Jul 2002 08:35:11 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 15 Jul 2002 15:36:21.0286 (UTC) FILETIME=[5E99AC60:01C22C15] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Don Melsness To: "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Mon, 15 Jul 2002 08:35:11 -0700 Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 15 Jul 2002 15:36:21.0286 (UTC) FILETIME=[5E99AC60:01C22C15] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Anne, It sounds like you have a primary-secondary deviation on one or more of your leaves. Suggest you run "diagMaxDeltaPriSecShow" command under hyperterminal. If any numbers are greater than -1.25, then these leaves can cause SFB errors. A worn leaf nut may be the culprit. Don Melsness BC Cancer Agency Vancouver, Canada -----Original Message----- From: Haugsnes Anne Berit [mailto:AnneBerit.Haugsnes@ulleval.no] Sent: Monday, July 15, 2002 1:52 AM To: linac-eng@plato.aristotle.net Subject: Sec feedback Mill MLC Hi! I'm haveing a problem with my Mill MLC. I get secondary feedback error only for some patients and only for some fields. If I change the the planned MLC field (that is drag some of the leafs and creat a small gap where the jaws are) it's okay. What could be wrong. Do you think it would help if I just clean the slides where the sec feedback wipers slide or is it software? Best regards, Anne Berit Haugsnes Engineer Dept. of Oncology Ulleval University Hospital Oslo, Norway +47 23016538 IKKE SENSITIVT INNHOLD (necessary subheading due to security, please disregard) ********************************************************************** This footnote confirms that this email message has been swept for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 15 22:57:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UCuH-0004KR-00; Mon, 15 Jul 2002 22:57:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 011CA1112F3; Mon, 15 Jul 2002 22:56:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA13885 for linac-eng-list; Mon, 15 Jul 2002 15:02:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA13879 for ; Mon, 15 Jul 2002 15:02:46 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Mon, 15 Jul 2002 14:05:00 -0600 Received: from scf.sk.ca ([172.24.49.84]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002071514023204252 for ; Mon, 15 Jul 2002 14:02:32 -0600 Message-ID: <3D332B15.D6C02315@scf.sk.ca> Date: Mon, 15 Jul 2002 14:05:41 -0600 From: John Cocarell X-Mailer: Mozilla 4.7 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Subject: Carrousel locking pin Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 15 Jul 2002 14:05:41 -0600 From: John Cocarell X-Accept-Language: en To: linac-eng@plato.aristotle.net Subject: Carrousel locking pin Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello list, I'm having trouble with a 2100C3 s/n 1015. Been getting Carr/Foil Int all day, and now won't go away. Tried calibrating the Carr, but won't get past 90(pin won't retract) or 9B(carr needs to run startup). Is it most likely the microswitches on the carrousel gone bad? Quickest way to get at them(least amount of lead)? Thanks in advance, -- _________________________ John Cocarell Physics Technician Allan Blair Cancer Centre Regina, Sask. Canada 306 766 2286 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 16 02:12:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UFwr-0004TD-00; Tue, 16 Jul 2002 02:12:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 614B51112F3; Tue, 16 Jul 2002 02:11:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA20791 for linac-eng-list; Mon, 15 Jul 2002 18:24:42 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA20787 for ; Mon, 15 Jul 2002 18:24:41 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Mon, 15 Jul 2002 17:27:27 -0600 Received: from scf.sk.ca ([172.24.49.84]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002071517245831019 for ; Mon, 15 Jul 2002 17:24:58 -0600 Message-ID: <3D335A8D.F5691189@scf.sk.ca> Date: Mon, 15 Jul 2002 17:28:13 -0600 From: John Cocarell X-Mailer: Mozilla 4.7 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Subject: Carrousel pin question #2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 15 Jul 2002 17:28:13 -0600 From: John Cocarell X-Accept-Language: en To: linac-eng@plato.aristotle.net Subject: Carrousel pin question #2 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Found switch S9, the "ultra-precision" switch that detects when the carrousel pin is down to be bad. Has anyone replaced this switch and was it quite difficult to swap out? Thanks in advance, -- _________________________ John Cocarell Physics Technician Allan Blair Cancer Centre Regina, Sask. Canada 306 766 2286 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 16 03:18:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UGyj-0004Vt-00; Tue, 16 Jul 2002 03:18:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8E1F41112F3; Tue, 16 Jul 2002 03:17:20 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id TAA22474 for linac-eng-list; Mon, 15 Jul 2002 19:46:18 -0500 (CDT) Received: from borg.xsinet.co.za (borg.xsinet.co.za [196.36.190.84]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id TAA22469 for ; Mon, 15 Jul 2002 19:46:15 -0500 (CDT) Received: (qmail 3986 invoked by uid 0); 15 Jul 2002 23:27:05 -0000 X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 15 Jul 2002 11:40:25 -0400 From: "Peter E. Vitali" Subject: MLC Secondary Feed Back Errors. To: "Linac-Engineers, Listserver" Message-id: <3D32ECAE.BF90B599@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 15 Jul 2002 11:40:25 -0400 From: "Peter E. Vitali" Subject: MLC Secondary Feed Back Errors. To: "Linac-Engineers, Listserver" Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good Morning All: Thought I would give you a fix to a Secondary Feed Back Problem that we had on our 1&1/2 year old 120 Millennium MLC. MLC 1295, Installed 9-2000. Software: Version 6.2. Problem: Recently we started getting many A-ide Secondary Feed Back Errors which caused Hardware Failures on the MLC if they happened when the Watch Dog Time Out occurred . These are not one leaf type of error but whole side errors which repeat and repeat until either a Watch Dog Time Out occurs or the machine is Beamed On. The other symptom was that it would happen when the gantry was at angles other than 180 or O (Varian Scale). We noticed the gantry angle involvement so this led us to believe the problem was in the head and not in the controller. Initially we suspected we had a gantry fiber optics cable problem.. After removing the MLC cover and checking for fiber optics problems by swapping fiber optic cables we notice no change in the frequency of the problem with the cover off but that the frequency went up when we replaced the cover. This lead us now to believe that the problem had more to do with the cover disturbing something. We removed the cover and did a visual check of the Boards on the A-side. While checking the boards on the A-side we touched the cable between the Power Distribution Board and the A-side Head Transceiver Board. This caused the Green Led on the A-side Head Transceiver board to go off and the Red Led to come on. We also found the that anywhere on the Power Distribution Board that we touched we could get the same problem to occur. We replaced the Power Distribution Board and that cleared up some of the problem in that we now only had the problem when we touched the cable connecting the two boards. We ordered a new A side cable and replaced it the next day. The problem cleared up some what but we could still get it to happen intermittently when we touched the new cable or replaced the cover. We observed that the cable between the two boards formed a "C" type curve which extended the middle of the curve over the side of the "Long Jaw Accessory Cover" of the Gantry that the MLC cover has to fit into. This meant that when we put the collimator cover on we had to push against this cable to get the cover to go on correctly. In retrospect, we always had this problem when replacing the cover. This pushing on the cable then flexed the Power Distribution Board and the A side Head Transceiver Board. Over time, replacing motors and doing PMIs the constant pushing and releasing by removing and replacing the cover may have caused problems on the Power Distribution Board Connectors to the Cable. Since the old cable and new cable were constructed exactly the same we believe the problem to be with the construction of the cable. While replacing the cable we noticed that they seemed to be longer than the space between the two boards. When we plugged the cable into both board sockets, both boards had to be flexed inward to make up for this extra length. Our Solution: The cable between the two boards is constructed out of five or six smaller cables Ty-Rap (Plastic Cable Ties) together. By cutting some of the Ty-Raps we were able to push the cables back even with the boards, at least a 1/2 inch, (13mm) away from the inside edge of the MLC cover. Doing this also released the pressure on the boards since the cables were free to move and adjust to the distance between the boards individually. Now if we press on either the Power Distribution , A-side Head Transceiver Board or the cable we get no A-side Secondary Feed Back Errors. Note: You may also have to replace the Power Distribution board since it may have damage on it that you cannot repair. Note: On our new 21EX-S #16 we had the same problem replacing the MLC collimator cover. We did the same thing with the A-side Cable before we start to have this problems. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 16 05:51:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UJNA-0004cC-00; Tue, 16 Jul 2002 05:51:36 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BAB191112F3; Tue, 16 Jul 2002 05:50:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA25897 for linac-eng-list; Mon, 15 Jul 2002 22:21:27 -0500 (CDT) Received: from borg.xsinet.co.za (borg.xsinet.co.za [196.36.190.84]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id WAA25893 for ; Mon, 15 Jul 2002 22:21:21 -0500 (CDT) Received: (qmail 4712 invoked by uid 0); 16 Jul 2002 00:13:41 -0000 X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Message-ID: <6BAF4D075F07D411B30900508B94CBA001FE2CFE@SERVER20> From: Don Melsness To: "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Mon, 15 Jul 2002 08:35:11 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 15 Jul 2002 15:36:21.0286 (UTC) FILETIME=[5E99AC60:01C22C15] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Don Melsness To: "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Mon, 15 Jul 2002 08:35:11 -0700 Content-Type: text/plain; charset="iso-8859-1" X-OriginalArrivalTime: 15 Jul 2002 15:36:21.0286 (UTC) FILETIME=[5E99AC60:01C22C15] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Anne, It sounds like you have a primary-secondary deviation on one or more of your leaves. Suggest you run "diagMaxDeltaPriSecShow" command under hyperterminal. If any numbers are greater than -1.25, then these leaves can cause SFB errors. A worn leaf nut may be the culprit. Don Melsness BC Cancer Agency Vancouver, Canada -----Original Message----- From: Haugsnes Anne Berit [mailto:AnneBerit.Haugsnes@ulleval.no] Sent: Monday, July 15, 2002 1:52 AM To: linac-eng@plato.aristotle.net Subject: Sec feedback Mill MLC Hi! I'm haveing a problem with my Mill MLC. I get secondary feedback error only for some patients and only for some fields. If I change the the planned MLC field (that is drag some of the leafs and creat a small gap where the jaws are) it's okay. What could be wrong. Do you think it would help if I just clean the slides where the sec feedback wipers slide or is it software? Best regards, Anne Berit Haugsnes Engineer Dept. of Oncology Ulleval University Hospital Oslo, Norway +47 23016538 IKKE SENSITIVT INNHOLD (necessary subheading due to security, please disregard) ********************************************************************** This footnote confirms that this email message has been swept for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 16 13:10:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UQED-000755-00; Tue, 16 Jul 2002 13:10:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F28451112F3; Tue, 16 Jul 2002 13:09:49 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id FAA04439 for linac-eng-list; Tue, 16 Jul 2002 05:30:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mx1.mail.twtelecom.net (mx1.mail.twtelecom.net [207.67.10.250]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA04435 for ; Tue, 16 Jul 2002 05:30:43 -0500 (CDT) Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by mx1.mail.twtelecom.net (Postfix) with ESMTP id 777CA6970C; Tue, 16 Jul 2002 05:30:40 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g6GAUeNL009890; Tue, 16 Jul 2002 05:30:40 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g6GAUeVV009887; Tue, 16 Jul 2002 05:30:40 -0500 (CDT) Received: through eSafe SMTP Relay 1026425636; Tue Jul 16 05:30:40 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Tue, 16 Jul 2002 05:30:40 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5F17@wmhmail.phci.org> From: "Williams, Rod" To: "'Peter E. Vitali'" , "Linac-Engineers, Listserver" Subject: RE: MLC Secondary Feed Back Errors. Date: Tue, 16 Jul 2002 05:30:35 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C22CB3.D224F240" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Peter E. Vitali'" , "Linac-Engineers, Listserver" Subject: RE: MLC Secondary Feed Back Errors. Date: Tue, 16 Jul 2002 05:30:35 -0500 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C22CB3.D224F240" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C22CB3.D224F240 Content-Type: text/plain; charset="iso-8859-1" Thanks Peter Good information we all can use. Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: Peter E. Vitali [SMTP:peter.vitali@yale.edu] > Sent: Monday, July 15, 2002 10:40 AM > To: Linac-Engineers, Listserver > Subject: MLC Secondary Feed Back Errors. > > Good Morning All: > > Thought I would give you a fix to a Secondary Feed Back Problem that we > had on > our 1&1/2 year old 120 Millennium MLC. > > MLC 1295, Installed 9-2000. > > Software: Version 6.2. > > Problem: > Recently we started getting many A-ide Secondary Feed Back Errors which > caused > Hardware Failures on the MLC if they happened when the Watch Dog Time Out > occurred . These are not one leaf type of error but whole side errors > which > repeat and repeat until either a Watch Dog Time Out occurs or the machine > is > Beamed On. The other symptom was that it would happen when the gantry > was at > angles other than 180 or O (Varian Scale). > > > We noticed the gantry angle involvement so this led us to believe the > problem > was in the head and not in the controller. Initially we suspected we had > a > gantry fiber optics cable problem.. After removing the MLC cover and > checking > for fiber optics problems by swapping fiber optic cables we notice no > change in > the frequency of the problem with the cover off but that the frequency > went up > when we replaced the cover. This lead us now to believe that the problem > had > more to do with the cover disturbing something. We removed the cover and > did a > visual check of the Boards on the A-side. While checking the boards on > the > A-side we touched the cable between the Power Distribution Board and the > A-side > Head Transceiver Board. This caused the Green Led on the A-side Head > Transceiver > board to go off and the Red Led to come on. We also found the that > anywhere on > the Power Distribution Board that we touched we could get the same problem > to > occur. We replaced the Power Distribution Board and that cleared up some > of the > problem in that we now only had the problem when we touched the cable > connecting > the two boards. We ordered a new A side cable and replaced it the next > day. > The problem cleared up some what but we could still get it to happen > intermittently when we touched the new cable or replaced the cover. > > We observed that the cable between the two boards formed a "C" type curve > which > extended the middle of the curve over the side of the "Long Jaw Accessory > Cover" > of the Gantry that the MLC cover has to fit into. This meant that when we > put > the collimator cover on we had to push against this cable to get the cover > to go > on correctly. In retrospect, we always had this problem when replacing > the > cover. This pushing on the cable then flexed the Power Distribution Board > and > the A side Head Transceiver Board. Over time, replacing motors and doing > PMIs > the constant pushing and releasing by removing and replacing the cover may > have > caused problems on the Power Distribution Board Connectors to the Cable. > Since > the old cable and new cable were constructed exactly the same we believe > the > problem to be with the construction of the cable. While replacing the > cable we > noticed that they seemed to be longer than the space between the two > boards. > When we plugged the cable into both board sockets, both boards had to be > flexed > inward to make up for this extra length. > > Our Solution: > The cable between the two boards is constructed out of five or six smaller > cables Ty-Rap (Plastic Cable Ties) together. By cutting some of the > Ty-Raps we > were able to push the cables back even with the boards, at least a 1/2 > inch, > (13mm) away from the inside edge of the MLC cover. Doing this also > released the > pressure on the boards since the cables were free to move and adjust to > the > distance between the boards individually. Now if we press on either the > Power > Distribution , A-side Head Transceiver Board or the cable we get no A-side > Secondary Feed Back Errors. > > Note: You may also have to replace the Power Distribution board since it > may > have damage on it that you cannot repair. > > Note: On our new 21EX-S #16 we had the same problem replacing the MLC > collimator cover. We did the same thing with the A-side Cable before we > start > to have this problems. > > Peter E. Vitali, CBET > Therapeutic Radiological Engineer > Yale New Haven Hospital > 20 York Street, HRT 22 > New Haven, CT. 06504 > Phone: (203) 688-2948 > FAX: (203) 688-3663 > E-mail: peter.vitali@yale.edu > > > As usual, everything I say may be plausibly denied at my employer's > convenience... > > ------_=_NextPart_001_01C22CB3.D224F240 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: MLC Secondary Feed Back Errors.

    Thanks Peter

    Good information we al= l can use.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



      -----Original Message-----
      From:   Peter E. Vitali [SMTP:peter.vitali@yale.edu]
      Sent:   Monday, July 15, 2002 10:40 AM
      To:     Linac-Engineers, Listserver
      Subject:    &nbs= p;   MLC Secondary Fee= d Back Errors.

      Good Morning All:

      Thought I would give you a fix to a Seco= ndary Feed Back Problem that we had on
      our 1&1/2 year old 120 Millennium M= LC.

      MLC 1295, Installed 9-2000.

      Software:   Version 6.2.

      Problem:
      Recently we started getting many A-ide = Secondary Feed Back Errors which caused
      Hardware Failures on the MLC if they ha= ppened when the Watch Dog Time Out
      occurred .  These are not one leaf= type of error but whole side errors which
      repeat and repeat until either a Watch = Dog Time Out occurs or the machine is
      Beamed On.   The other sympto= m was that it would happen when the gantry was at
      angles other than 180 or O (Varian Scal= e).


      We noticed the gantry angle involvement = so this led us to believe the problem
      was in the head and not in the controll= er.  Initially we suspected we had a
      gantry fiber optics cable problem..&nbs= p; After removing the MLC cover and checking
      for fiber optics problems by swapping f= iber optic cables we notice no change in
      the frequency of the problem with the c= over off but that the frequency went up
      when we replaced the cover. This lead u= s now to believe that the problem had
      more to do with the cover disturbing so= mething.  We removed the cover and did a
      visual check of the Boards on the A-sid= e.  While checking the boards on the
      A-side we touched the cable between the= Power Distribution Board and the A-side
      Head Transceiver Board. This caused the= Green Led on the A-side Head Transceiver
      board to go off and the Red Led to come= on. We also found the that anywhere on
      the Power Distribution Board that we to= uched we could get the same problem to
      occur.  We replaced the Power Dist= ribution Board and that cleared up some of the
      problem in that we now only had the pro= blem when we touched the cable connecting
      the two boards.  We ordered a new = A side cable and replaced it the next day.
      The problem cleared up some what but we= could still get it to happen
      intermittently when we touched the new = cable or replaced the cover.

      We observed that the cable between the t= wo boards formed a "C" type curve which
      extended the middle of the curve over t= he side of the "Long Jaw Accessory Cover"
      of the Gantry that the MLC cover has to= fit into.  This meant that when we put
      the collimator cover on we had to push = against this cable to get the cover to go
      on correctly.  In retrospect, we a= lways had this problem when replacing the
      cover.  This pushing on the cable = then flexed the Power Distribution Board and
      the A side Head Transceiver Board. = ; Over time, replacing motors and doing PMIs
      the constant pushing and releasing by r= emoving and replacing the cover may have
      caused problems on the Power Distributi= on Board Connectors to the Cable.  Since
      the old cable and new cable were constr= ucted exactly the same we believe the
      problem to be with the construction of = the cable.  While replacing the cable we
      noticed that they seemed to be longer t= han the space between the two boards.
      When we plugged the cable into both boa= rd sockets,  both boards had to be flexed
      inward to make up for this extra length= .

      Our Solution:
      The cable between the two boards is con= structed out of five or six smaller
      cables Ty-Rap (Plastic Cable Ties) toge= ther.  By cutting some of the Ty-Raps we
      were able to push the cables back even = with the boards, at least a 1/2 inch,
      (13mm) away from the inside edge of the= MLC cover.  Doing this also released the
      pressure on the boards since the cables= were free to move and adjust to the
      distance between the boards individuall= y.  Now if we press on either the Power
      Distribution , A-side Head Transceiver = Board or the cable we get no A-side
      Secondary Feed Back Errors.

      Note:  You may also have to replace= the Power Distribution board since it may
      have damage on it that you cannot repai= r.

      Note:  On our new 21EX-S #16 we had= the same problem replacing the MLC
      collimator cover.  We did the same= thing with the A-side Cable before we start
      to have this problems.

      Peter E. Vitali, CBET
      Therapeutic Radiological Engineer
      Yale New Haven Hospital
      20 York Street,    HRT 2= 2
      New Haven, CT.  06504
      Phone:   (203) 688-2948
      FAX:     (203) 688-= 3663
      E-mail:    peter.vitali@= yale.edu


      As usual, everything I say may be plausi= bly denied at my employer's
      convenience...


    ------_=_NextPart_001_01C22CB3.D224F240-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 16 18:12:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UUvq-000124-00; Tue, 16 Jul 2002 18:12:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 01D891112F3; Tue, 16 Jul 2002 18:11:07 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA10763 for linac-eng-list; Tue, 16 Jul 2002 10:25:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA10759 for ; Tue, 16 Jul 2002 10:25:52 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 16 Jul 2002 09:28:33 -0600 Received: from scf.sk.ca ([172.24.49.84]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002071609260524611 for ; Tue, 16 Jul 2002 09:26:05 -0600 Message-ID: <3D343BC9.2F4538E5@scf.sk.ca> Date: Tue, 16 Jul 2002 09:29:13 -0600 From: John Cocarell X-Mailer: Mozilla 4.7 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: linac-eng@plato.aristotle.net Subject: Follow up on Carr pin Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 16 Jul 2002 09:29:13 -0600 From: John Cocarell X-Accept-Language: en To: linac-eng@plato.aristotle.net Subject: Follow up on Carr pin Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to all who responded. Managed to clean switch well enough to get machine up until switch arrives tomorrow(guess we'll stock these from now on). -- _________________________ John Cocarell Physics Technician Allan Blair Cancer Centre Regina, Sask. Canada 306 766 2286 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 16 21:43:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UYDs-0001HH-00; Tue, 16 Jul 2002 21:43:00 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 037451112F3; Tue, 16 Jul 2002 21:41:56 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA17262 for linac-eng-list; Tue, 16 Jul 2002 13:59:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA17254 for ; Tue, 16 Jul 2002 13:59:32 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 16 Jul 2002 14:59:00 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFC6@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Tue, 16 Jul 2002 14:58:59 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Tue, 16 Jul 2002 14:58:59 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I see a similar problem, leaves touching, SFB errors or sometimes dancing leafs as one hits the other and they both move back and try again. The usual skew, offset, gap etc adjustments are fine with the gantry at 0. But it turns out that one carriage has developed some play after years of hard work or whatever, so that it moves with gantry angle. Investigate the field postion vs gantry angle, and look for mechancial looseness in carriages and leaves. Note that Varian specs double for this MLC after 10 years. We put a small gap between leaves that are behind jaws, and are keeping a close eye on this, as our machine runs 6am to 7 pm, 65 patients/day, so it has the wear of an older machine. We have also seen some play in one of the regular jaws, similar magnitude, and have started doing more checking vs gantry angle for most parameters. Jerry > -----Original Message----- > From: Haugsnes Anne Berit [SMTP:AnneBerit.Haugsnes@ulleval.no] > Sent: Monday, July 15, 2002 4:52 AM > To: linac-eng@plato.aristotle.net > Subject: Sec feedback Mill MLC > > Hi! > > I'm haveing a problem with my Mill MLC. I get secondary feedback error only > for some patients and only for some fields. If I change the the planned MLC > field (that is drag some of the leafs and creat a small gap where the jaws > are) it's okay. What could be wrong. > Do you think it would help if I just clean the slides where the sec feedback > wipers slide or is it software? > > > > > Best regards, > Anne Berit Haugsnes > Engineer > > Dept. of Oncology > Ulleval University Hospital > Oslo, Norway > +47 23016538 > > > IKKE SENSITIVT INNHOLD > (necessary subheading due to security, please disregard) > > > > > ********************************************************************** > This footnote confirms that this email message has been swept > for the presence of computer viruses. > ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 17 01:41:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Ubwr-0001WI-00; Wed, 17 Jul 2002 01:41:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6D5F11112F3; Wed, 17 Jul 2002 01:40:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA25085 for linac-eng-list; Tue, 16 Jul 2002 18:00:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA25080 for ; Tue, 16 Jul 2002 18:00:28 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id <2ZZ5CPPG>; Tue, 16 Jul 2002 18:59:53 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFC9@phsexch6.partners.org> From: "Maddox, Buford J" To: "Maddox, Buford J" , "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Tue, 16 Jul 2002 18:59:47 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "Maddox, Buford J" , "'Haugsnes Anne Berit'" , linac-eng@plato.aristotle.net Subject: RE: Sec feedback Mill MLC Date: Tue, 16 Jul 2002 18:59:47 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk OOPs! Didn't notice the post was for Millenium. My reply for antiques only. > -----Original Message----- > From: Maddox, Buford J > Sent: Tuesday, July 16, 2002 2:59 PM > To: 'Haugsnes Anne Berit'; linac-eng@plato.aristotle.net > Subject: RE: Sec feedback Mill MLC > > I see a similar problem, leaves touching, SFB errors or sometimes dancing > leafs > as one hits the other and they both move back and try again. The usual > skew, > offset, gap etc adjustments are fine with the gantry at 0. But it turns > out > that one carriage has developed some play after years of hard work or > whatever, > so that it moves with gantry angle. Investigate the field postion vs > gantry > angle, and look for mechancial looseness in carriages and leaves. Note > that > Varian specs double for this MLC after 10 years. We put a small gap > between > leaves that are behind jaws, and are keeping a close eye on this, as our > machine > runs 6am to 7 pm, 65 patients/day, so it has the wear of an older machine. > > > We have also seen some play in one of the regular jaws, similar magnitude, > and > have started doing more checking vs gantry angle for most parameters. > > Jerry > > > -----Original Message----- > > From: Haugsnes Anne Berit [SMTP:AnneBerit.Haugsnes@ulleval.no] > > Sent: Monday, July 15, 2002 4:52 AM > > To: linac-eng@plato.aristotle.net > > Subject: Sec feedback Mill MLC > > > > Hi! > > > > I'm haveing a problem with my Mill MLC. I get secondary feedback error > only > > for some patients and only for some fields. If I change the the planned > MLC > > field (that is drag some of the leafs and creat a small gap where the > jaws > > are) it's okay. What could be wrong. > > Do you think it would help if I just clean the slides where the sec > feedback > > wipers slide or is it software? > > > > > > > > > > Best regards, > > Anne Berit Haugsnes > > Engineer > > > > Dept. of Oncology > > Ulleval University Hospital > > Oslo, Norway > > +47 23016538 > > > > > > IKKE SENSITIVT INNHOLD > > (necessary subheading due to security, please disregard) > > > > > > > > > > ********************************************************************** > > This footnote confirms that this email message has been swept > > for the presence of computer viruses. > > ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 17 10:29:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UkBh-0003JM-00; Wed, 17 Jul 2002 10:29:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3C2681112F5; Wed, 17 Jul 2002 10:28:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA04376 for linac-eng-list; Wed, 17 Jul 2002 02:52:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA04371 for ; Wed, 17 Jul 2002 02:52:33 -0500 (CDT) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 17UjbO-0004IF-00; Wed, 17 Jul 2002 08:52:02 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D34EF3100002475 for linac-eng@plato.aristotle.net; Wed, 17 Jul 2002 08:52:05 +0100 Received: from ulh.nhs.uk (194.189.124.2) by relay.nhs.uk (Syntegra-1 6.5.016) id 3D2C1D650010A8C1 for linac-eng@plato.aristotle.net; Wed, 17 Jul 2002 08:53:04 +0100 Received: from email-l1.ulh.nhs.uk ([194.227.140.97]) by wangate.ulh.nhs.uk with ESMTP id <119042>; Wed, 17 Jul 2002 08:52:37 +0100 Received: by email-l1.ulh.nhs.uk with Internet Mail Service (5.5.2650.21) id ; Wed, 17 Jul 2002 08:44:43 +0100 Message-ID: From: "Webb Richard (ULHT)" To: linac-eng@plato.aristotle.net Subject: 2100CD klystrons and water Date: Wed, 17 Jul 2002 08:44:42 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Webb Richard (ULHT)" To: linac-eng@plato.aristotle.net Subject: 2100CD klystrons and water Date: Wed, 17 Jul 2002 08:44:42 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good morning list, Yesterday our 2100CD sprang a water leak at the klystron solenoid inlet, soaking the top of the klystron solenoid. After drying thoroughly, water is still seeping from the join at the bottom of the klystron solenoid. We now have to re-peak the RF drive every ten minutes on each energy to get any output. We have replaced the main thyratron on Varians advice, but the problem remains. KLY I and KLY V look good on the scope, and AFC seems OK. Has anyone had any similar experiences with water leaks onto the klystron, or is it coincidence and we're barking up the wrong tree entirely? Richard Webb Radiotherapy Technician ULH NHS trust. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 17 17:52:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Ur5w-0008S6-00; Wed, 17 Jul 2002 17:52:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 074791112F2; Wed, 17 Jul 2002 17:50:46 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA12875 for linac-eng-list; Wed, 17 Jul 2002 09:47:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA12869 for ; Wed, 17 Jul 2002 09:47:23 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 17Uq50-00003r-00; Wed, 17 Jul 2002 15:47:02 +0100 Received: from relay.nhs.uk (194.62.42.142) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D3536E100011391 for linac-eng@plato.aristotle.net; Wed, 17 Jul 2002 15:46:57 +0100 Received: from mailsweeper.suht.swest.nhs.uk (194.189.32.135) by relay.nhs.uk (Syntegra-2 6.5.016) id 3D2C1DFD00130B9F for linac-eng@plato.aristotle.net; Wed, 17 Jul 2002 15:48:16 +0100 Received: from mail.suht.swest.nhs.uk (unverified) by mailsweeper.suht.swest.nhs.uk (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Wed, 17 Jul 2002 15:43:21 +0100 Received: from SGH-Message_Server by mail.suht.swest.nhs.uk with Novell_GroupWise; Wed, 17 Jul 2002 15:47:02 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Wed, 17 Jul 2002 15:38:33 +0100 From: "John McKechnie" To: Subject: Radiotherapy Engineer Vacancy Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA12872 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 17 Jul 2002 15:38:33 +0100 From: "John McKechnie" To: Subject: Radiotherapy Engineer Vacancy Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA12872 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello to the list, The following advert will be appearing in the IPEM "green sheets", publication date 7th Aug. Regards, John John McKechnie Head of Radiotherapy Electronics Wessex Radiotherapy Centre Royal Southants Hospital Brintons Terrace (Off St. Mary's Road) Southampton SO14 OYG Tel. 023 8082 5708 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please Delete the E-mail and contact the Southampton University Hospitals NHS Trust Helpdesk on:- 023 80796000. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 17 18:24:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Urbk-00006S-00; Wed, 17 Jul 2002 18:24:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 51A1C1112F2; Wed, 17 Jul 2002 18:23:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA14379 for linac-eng-list; Wed, 17 Jul 2002 10:43:33 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from CCMAIL.GENERALHEALTH.ORG ([64.56.16.29]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA14375 for ; Wed, 17 Jul 2002 10:43:31 -0500 (CDT) Received: from ccMail by CCMAIL.GENERALHEALTH.ORG (IMA Internet Exchange 3.13) id 0010DA7A; Wed, 17 Jul 2002 10:41:04 -0500 Mime-Version: 1.0 Date: Wed, 17 Jul 2002 10:36:01 -0500 Message-ID: <0010DA7A.C22279@GENERALHEALTH.ORG> From: Kevin_Martin@generalhealth.org (Kevin Martin) Subject: Siemen's beamview To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 17 Jul 2002 10:36:01 -0500 From: Kevin_Martin@generalhealth.org (Kevin Martin) Subject: Siemen's beamview To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Content-Description: cc:Mail note part Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Anyone interested in imaging parts for Siemens Beamview. These parts are no longer available for their UNIX based system. If interested please e-mail me privately.Thanks Kevin Martin 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 17 18:35:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Urm0-00007g-00; Wed, 17 Jul 2002 18:35:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2089F1112F2; Wed, 17 Jul 2002 18:34:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA15162 for linac-eng-list; Wed, 17 Jul 2002 11:04:12 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA15158 for ; Wed, 17 Jul 2002 11:04:10 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id <2ZZ5CXG5>; Wed, 17 Jul 2002 12:03:39 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFCB@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Webb Richard (ULHT)'" , linac-eng@plato.aristotle.net Subject: RE: 2100CD klystrons and water Date: Wed, 17 Jul 2002 12:03:28 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Webb Richard (ULHT)'" , linac-eng@plato.aristotle.net Subject: RE: 2100CD klystrons and water Date: Wed, 17 Jul 2002 12:03:28 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk There were some posts on this a couple of years ago. I remember people saying they drilled holes in the bottom of the solenoid cover, let the water out, and saved the solenoid. Anyone else? > -----Original Message----- > From: Webb Richard (ULHT) [SMTP:Richard.Webb@ulh.nhs.uk] > Sent: Wednesday, July 17, 2002 3:45 AM > To: linac-eng@plato.aristotle.net > Subject: 2100CD klystrons and water > > Good morning list, > > Yesterday our 2100CD sprang a water leak at the klystron solenoid inlet, > soaking the top of the klystron solenoid. After drying thoroughly, water > is > still seeping from the join at the bottom of the klystron solenoid. We now > have to re-peak the RF drive every ten minutes on each energy to get any > output. We have replaced the main thyratron on Varians advice, but the > problem remains. KLY I and KLY V look good on the scope, and AFC seems OK. > > Has anyone had any similar experiences with water leaks onto the klystron, > or is it coincidence and we're barking up the wrong tree entirely? > > Richard Webb > Radiotherapy Technician > ULH NHS trust. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 17 20:54:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UtwD-0000Kt-00; Wed, 17 Jul 2002 20:54:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4FD601112F2; Wed, 17 Jul 2002 20:52:53 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA18782 for linac-eng-list; Wed, 17 Jul 2002 12:53:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA18778 for ; Wed, 17 Jul 2002 12:53:53 -0500 (CDT) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA25605; Wed, 17 Jul 2002 12:49:59 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256BF9.0061C7DB ; Wed, 17 Jul 2002 12:48:01 -0500 X-Lotus-FromDomain: MDACC To: "Webb Richard (ULHT)" Cc: linac-eng@plato.aristotle.net Message-ID: <86256BF9.0061C7D0.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 17 Jul 2002 12:50:22 -0500 Subject: Re: 2100CD klystrons and water Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Webb Richard (ULHT)" Cc: linac-eng@plato.aristotle.net Date: Wed, 17 Jul 2002 12:50:22 -0500 Subject: Re: 2100CD klystrons and water Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Richard, I think it is time to bite the bullet and get a new solenoid. Apart from the possibility of water contaminating your klystron tank, you will continue to have stability problems not to mention water issues. Drilling the hole 3/4" from the bottom lip is a good way to confirm that there is a water leak in your tank but the water leaking out answers that. If you still have stability problems after the solenoid change and have a new klystron then you might look at your RF driver. Have you done a perviance check on the klystron? Good luck. Ed Rymes Accel Tech III M.D. Anderson Cancer Center "Webb Richard (ULHT)" on 07/17/2002 02:44:42 AM To: linac-eng@plato.aristotle.net cc: (bcc: Edward Rymes/MDACC) Subject: 2100CD klystrons and water Good morning list, Yesterday our 2100CD sprang a water leak at the klystron solenoid inlet, soaking the top of the klystron solenoid. After drying thoroughly, water is still seeping from the join at the bottom of the klystron solenoid. We now have to re-peak the RF drive every ten minutes on each energy to get any output. We have replaced the main thyratron on Varians advice, but the problem remains. KLY I and KLY V look good on the scope, and AFC seems OK. Has anyone had any similar experiences with water leaks onto the klystron, or is it coincidence and we're barking up the wrong tree entirely? Richard Webb Radiotherapy Technician ULH NHS trust. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 17 22:57:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UvrA-0000T7-00; Wed, 17 Jul 2002 22:57:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 570E91112F2; Wed, 17 Jul 2002 22:55:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA21101 for linac-eng-list; Wed, 17 Jul 2002 14:17:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id OAA21093 for ; Wed, 17 Jul 2002 14:17:17 -0500 (CDT) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Wed, 17 Jul 2002 16:12:30 -0300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 17 Jul 2002 16:12:17 -0300 From: "David Burgess" To: , Subject: Re: 2100CD klystrons and water Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA21094 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 17 Jul 2002 16:12:17 -0300 From: "David Burgess" To: , Subject: Re: 2100CD klystrons and water Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA21094 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We replaced the Klystron solenoids (after about 4 years service) in both our Varian HE's (s/n 708 & 1025). They both leaked internally. They both first leaked water around the bottom solenoid seam. We drilled a hole near the bottom of the solenoid to let the water dribble out, rather than have it flood internally until it flows out around the top seams. This hole is not a fix, it just lets you direct the water away from the klystron and pulse tank, and gives you a few days to get a new solenoid to your site and replace it. If you are still seaping water from around the bottom solenoid seam I think you should drill the hole to find out if inside the soleniod is flooded. Normally the water only flows through the copper tubing and inside the solenoid jacket is dry. You should be carefull that water doesn't get into the Klystron portion of the pulse tank. If it does it can cause major arcing and damage. If there is water in the oil, dry out the unit and replace the oil. >>> "Webb Richard (ULHT)" 7/17/2002 4:44:42 AM >>> Good morning list, Yesterday our 2100CD sprang a water leak at the klystron solenoid inlet, soaking the top of the klystron solenoid. After drying thoroughly, water is still seeping from the join at the bottom of the klystron solenoid. We now have to re-peak the RF drive every ten minutes on each energy to get any output. We have replaced the main thyratron on Varians advice, but the problem remains. KLY I and KLY V look good on the scope, and AFC seems OK. Has anyone had any similar experiences with water leaks onto the klystron, or is it coincidence and we're barking up the wrong tree entirely? Richard Webb Radiotherapy Technician ULH NHS trust. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 18 00:26:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17UxFr-0000Z4-00; Thu, 18 Jul 2002 00:26:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AEEBA1112F2; Thu, 18 Jul 2002 00:25:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA23546 for linac-eng-list; Wed, 17 Jul 2002 15:36:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA23542 for ; Wed, 17 Jul 2002 15:36:46 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA08584 for ; Thu, 18 Jul 2002 08:13:39 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Thu, 18 Jul 2002 08:39:00 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Thu, 18 Jul 2002 08:35:16 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 18 Jul 2002 08:34:59 +1200 From: "Dave Pinchin" To: , Subject: Re: 2100CD klystrons and water Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA23543 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 18 Jul 2002 08:34:59 +1200 From: "Dave Pinchin" To: , Subject: Re: 2100CD klystrons and water Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA23543 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, Seen this one on #40, Aug last year. Water got into the kly system. Machine would not run well. We found water had penetrated the metal sheath around the klystron waveguide and was shorting the RFdrive input to the Kly. Easy to fix but rather frightening to do. 1/ Pull klystron 2/ CAREFULLY drill rivets out of lower cover. 3/ remove cover. 4/ dismantle electrics and dry. 5/ reassemble. Dave. >>> "Webb Richard (ULHT)" 17/07/02 19:44:42 >>> Good morning list, Yesterday our 2100CD sprang a water leak at the klystron solenoid inlet, soaking the top of the klystron solenoid. After drying thoroughly, water is still seeping from the join at the bottom of the klystron solenoid. We now have to re-peak the RF drive every ten minutes on each energy to get any output. We have replaced the main thyratron on Varians advice, but the problem remains. KLY I and KLY V look good on the scope, and AFC seems OK. Has anyone had any similar experiences with water leaks onto the klystron, or is it coincidence and we're barking up the wrong tree entirely? Richard Webb Radiotherapy Technician ULH NHS trust. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 19 12:17:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17VUp1-0000EZ-00; Fri, 19 Jul 2002 12:17:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7C5F11112F2; Fri, 19 Jul 2002 12:15:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA14256 for linac-eng-list; Fri, 19 Jul 2002 04:24:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pat.uio.no (IDENT:7411@pat.uio.no [129.240.130.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA14252 for ; Fri, 19 Jul 2002 04:24:23 -0500 (CDT) Received: from sokrates.uio.no ([129.240.130.10]) by pat.uio.no with esmtp (Exim 2.12 #7) id 17VTzn-0005iA-00 for linac-eng@plato.aristotle.net; Fri, 19 Jul 2002 11:24:19 +0200 Received: from pcdnrb270.uio.no ([129.240.141.87] helo=pcdnr515.klinmed.uio.no) by sokrates.uio.no with esmtp (Exim 2.12 #7) id 17VTzm-0002g6-00 for linac-eng@plato.aristotle.net; Fri, 19 Jul 2002 11:24:18 +0200 Message-Id: <5.1.0.14.2.20020719105857.00a30ec0@uio-pop.uio.no> X-Sender: ahjelmas@uio-pop.uio.no X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Fri, 19 Jul 2002 11:24:08 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Siemens Primus Relay Board I/L Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: ahjelmas@uio-pop.uio.no Date: Fri, 19 Jul 2002 11:24:08 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Siemens Primus Relay Board I/L Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello list, we get a Relay Board I/L intermittently on our Siemens Primus V6.3 S/N 3002. Sometime we get it every day, and sometimes it can take a few weeks between the errors. The check#2 indicates Function contr 6 = 2 Hex, which indicates that the critical dosimetry interlock test has failed. However, the Watchdog pcb diodes indicates Function controller #2, which starts the Critical dosimetry interlock test. We have tried swapping boards, checking cables and connectors, without luck. The diodes still indicate FC#2. Oct.99 there was a discussion here on a similar problem on a Mevatron KD-2, where the solution turned out to be replacing noise sensitive PIO chips on the Function controllers with chips from another manufacturer. Does the Mevatron and the Primus have identical FC boards, and does anyone know whether the Primus FC boards may be noise sensitive? I suppose it's the Intel 8255A chip on the FC which is the PIO. Any other suggestions? Regards Arne Hjelmas The Norwegian Radium Hospital Oslo Norway 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 19 21:20:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17VdIp-0002e8-00; Fri, 19 Jul 2002 21:20:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EFFA41112F2; Fri, 19 Jul 2002 21:18:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA12524 for linac-eng-list; Fri, 19 Jul 2002 13:42:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA12515 for ; Fri, 19 Jul 2002 13:42:35 -0500 (CDT) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Fri, 19 Jul 2002 14:41:50 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFCC@phsexch6.partners.org> From: "Maddox, Buford J" To: =?ISO-8859-1?Q?=27Arne_Hjelm=E5s=27?= , linac-eng@plato.aristotle.net Subject: RE: Siemens Primus Relay Board I/L Date: Fri, 19 Jul 2002 14:41:50 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA12516 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: =?ISO-8859-1?Q?=27Arne_Hjelm=E5s=27?= , linac-eng@plato.aristotle.net Subject: RE: Siemens Primus Relay Board I/L Date: Fri, 19 Jul 2002 14:41:50 -0400 Content-Type: text/plain; charset="ISO-8859-1" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA12516 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk We had a rash of the FC6 error 2 failures which turned out to be the Dose servo PCB ailing the ILK est.own key to cause repeated check 2 cycles while you watch LEDs. I don't think Siemens uses the Intel chips now, some other brand. The dose PCBs seem to be more or less the same between KD and Primus. Might be some small details changed due to different generations of the boards. I have learned to use the SIP analyzer, useful for calibration of accessories, not as helpful for this problem. It seems to catch the fact that FC 2 is involved, but not enough detail. Jerry > -----Original Message----- > From: Arne Hjelmås [SMTP:arne.hjelmas@klinmed.uio.no] > Sent: Friday, July 19, 2002 5:24 AM > To: linac-eng@plato.aristotle.net > Subject: Siemens Primus Relay Board I/L > > Hello list, > we get a Relay Board I/L intermittently on our Siemens Primus V6.3 S/N > 3002. Sometime we get it every day, and sometimes it can take a few weeks > between the errors. The check#2 indicates Function contr 6 = 2 Hex, which > indicates that the critical dosimetry interlock test has failed. However, the > Watchdog pcb diodes indicates Function controller #2, which starts the > Critical dosimetry interlock test. > > We have tried swapping boards, checking cables and connectors, without > luck. The diodes still indicate FC#2. > > Oct.99 there was a discussion here on a similar problem on a Mevatron KD-2, > where the solution turned out to be replacing noise sensitive PIO chips on > the Function controllers with chips from another manufacturer. > > Does the Mevatron and the Primus have identical FC boards, and does anyone > know whether the Primus FC boards may be noise sensitive? I suppose it's > the Intel 8255A chip on the FC which is the PIO. > Any other suggestions? > > Regards > Arne Hjelmas > The Norwegian Radium Hospital > Oslo > Norway 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 22 10:07:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17WYEX-0006zu-00; Mon, 22 Jul 2002 10:07:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4DD7E1112FA; Mon, 22 Jul 2002 10:05:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA11935 for linac-eng-list; Mon, 22 Jul 2002 02:33:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lnksmtp.cgmh.org.tw (lnksmtp.cgmh.org.tw [210.61.73.27]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA11914 for ; Mon, 22 Jul 2002 02:30:58 -0500 (CDT) Received: from lnkpc ([10.30.13.12]) by lnksmtp.cgmh.org.tw (8.9.3/8.9.3) with SMTP id PAA27559 for ; Mon, 22 Jul 2002 15:29:42 +0800 Message-ID: <002a01c23151$65492680$0c0d1e0a@cgmh.org.tw> From: "Andre Lu" To: Subject: MLC Motors Date: Mon, 22 Jul 2002 15:28:37 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0027_01C23194.735B9DA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andre Lu" To: Subject: MLC Motors Date: Mon, 22 Jul 2002 15:28:37 +0800 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0027_01C23194.735B9DA0" X-Priority: 3 X-MSMail-Priority: Normal X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0027_01C23194.735B9DA0 Content-Type: text/plain; charset="big5" Content-Transfer-Encoding: quoted-printable Has anyone found an alternate source for non-Millennium MLC motors?=20 Thanks in advance. Chief Engineer CGMH. TW ------=_NextPart_000_0027_01C23194.735B9DA0 Content-Type: text/html; charset="big5" Content-Transfer-Encoding: quoted-printable
    Has anyone found an alternate source for non-Millennium MLC motors? =
     Thanks in advance.


    Chief Engineer
    CGMH.=20 TW
    ------=_NextPart_000_0027_01C23194.735B9DA0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 22 11:08:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17WZB0-0007Qs-00; Mon, 22 Jul 2002 11:08:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5C4F81112F2; Mon, 22 Jul 2002 11:05:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA13293 for linac-eng-list; Mon, 22 Jul 2002 03:37:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl (kbl-vlis8120.zeelandnet.nl [212.92.95.246]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA13289 for ; Mon, 22 Jul 2002 03:37:13 -0500 (CDT) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Mon, 22 Jul 2002 10:37:01 +0200 Message-ID: To: andre@adm.cgmh.org.tw, linac-eng@plato.aristotle.net Subject: RE: MLC Motors Date: Mon, 22 Jul 2002 10:36:59 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: andre@adm.cgmh.org.tw, linac-eng@plato.aristotle.net Subject: RE: MLC Motors Date: Mon, 22 Jul 2002 10:36:59 +0200 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello Andre, I suppose you are talking about VARIAN mlc's? There are serveral suppliers in America, witch are connected to 'third party maintenance' work. We - in the Netherlands - buy them at RadParts: http://www.radparts.com/default.htm Regards, Keesjan de Bruijne Ziekenhuis Walcheren Vlissingen, the Netherlands afd. DIA cj.de.bruijne@walcheren.ziekenhuis.nl > -----Original Message----- > From: Andre Lu [SMTP:andre@adm.cgmh.org.tw] > Sent: Monday, July 22, 2002 9:29 AM > To: linac-eng@plato.aristotle.net > Subject: MLC Motors > > Has anyone found an alternate source for non-Millennium MLC motors? > Thanks in advance. > > > Chief Engineer > CGMH. TW 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 22 23:29:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Wkk2-0003ZI-00; Mon, 22 Jul 2002 23:29:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7A7C01112F2; Mon, 22 Jul 2002 23:26:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA23198 for linac-eng-list; Mon, 22 Jul 2002 15:46:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA23194 for ; Mon, 22 Jul 2002 15:46:20 -0500 (CDT) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Mon, 22 Jul 2002 17:42:53 -0300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 22 Jul 2002 17:42:46 -0300 From: "Scott Purcell" To: , Subject: Re: MLC Motors Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA23195 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 22 Jul 2002 17:42:46 -0300 From: "Scott Purcell" To: , Subject: Re: MLC Motors Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA23195 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Andre We have been ordering the non-Millennium MLC motors from Danbury Engineering the contact there is Doug Steers phone number is 1-877-797-9181. Any questions let me know. Regards Scott Purcell Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada Email scott.purcell@cdha.nshealth.ca Phone: 902-473-2563 Fax: 902-473-6120 >>> "Andre Lu" 07/22/02 04:28AM >>> Has anyone found an alternate source for non-Millennium MLC motors? Thanks in advance. Chief Engineer CGMH. TW 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 23 02:38:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Wngr-0003ky-00; Tue, 23 Jul 2002 02:38:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B2321112F2; Tue, 23 Jul 2002 02:35:28 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id TAA28479 for linac-eng-list; Mon, 22 Jul 2002 19:11:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA28475 for ; Mon, 22 Jul 2002 19:11:48 -0500 (CDT) Received: by xchange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 22 Jul 2002 17:11:55 -0700 Message-ID: From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Siemens Rotary Joint Date: Mon, 22 Jul 2002 17:11:50 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Siemens Rotary Joint Date: Mon, 22 Jul 2002 17:11:50 -0700 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks to all who responded to my request concerning the rotary joint on our MD-2. It was decided, while I was on vacation, to go ahead and have Siemens replace this unit. Broke my heart. I so much wanted to do that job myself 8^). Thanks Again, Dan Watters UMC Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 25 11:39:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Xf5j-0003Sb-00; Thu, 25 Jul 2002 11:39:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F2AD31112F1; Thu, 25 Jul 2002 11:36:02 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA16045 for linac-eng-list; Thu, 25 Jul 2002 04:08:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pat.uio.no (IDENT:7411@pat.uio.no [129.240.130.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA16041 for ; Thu, 25 Jul 2002 04:08:52 -0500 (CDT) Received: from fhume.uio.no ([129.240.130.23]) by pat.uio.no with esmtp (Exim 2.12 #7) id 17Xec3-0007cj-00 for linac-eng@plato.aristotle.net; Thu, 25 Jul 2002 11:08:47 +0200 Received: from pcdnrb270.uio.no ([129.240.141.87] helo=pcdnr515.klinmed.uio.no) by fhume.uio.no with esmtp (Exim 2.12 #2) id 17Xec2-0004w1-00 for linac-eng@plato.aristotle.net; Thu, 25 Jul 2002 11:08:46 +0200 Message-Id: <5.1.0.14.2.20020725105454.009e94e0@uio-pop.uio.no> X-Sender: ahjelmas@uio-pop.uio.no X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Thu, 25 Jul 2002 11:08:45 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Re: Siemens Primus Relay Board I/L In-Reply-To: <5.1.0.14.2.20020719105857.00a30ec0@uio-pop.uio.no> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: ahjelmas@uio-pop.uio.no Date: Thu, 25 Jul 2002 11:08:45 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Re: Siemens Primus Relay Board I/L In-Reply-To: <5.1.0.14.2.20020719105857.00a30ec0@uio-pop.uio.no> Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Thanks a lot to all who responded to my relay board question. Several people confirmed that there have been some questions about the quality of the Intel 8255 chips. I have now replaced the two Intel 8255 on Function Controller #2 with two NEC UPD71055 (which is a 8255 equivalent, thanks Marty), I will get back to the list in about two weeks to tell you whether we have had any more Relay Board I/L. Regards Arne Hjelmas The Norwegian Radium Hospital Oslo Norway 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 25 12:35:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Xfxt-0003vu-00; Thu, 25 Jul 2002 12:35:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 61D811112F1; Thu, 25 Jul 2002 12:32:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA16692 for linac-eng-list; Thu, 25 Jul 2002 05:15:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA16680 for ; Thu, 25 Jul 2002 05:14:58 -0500 (CDT) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17Xfdn-000120-00; Thu, 25 Jul 2002 11:14:39 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D353529001167F7 for linac-eng@plato.aristotle.net; Thu, 25 Jul 2002 11:14:44 +0100 Received: from ulh.nhs.uk (194.189.124.2) by relay.nhs.uk (Syntegra-3 6.5.016) id 3D2C1E820022E925 for linac-eng@plato.aristotle.net; Thu, 25 Jul 2002 11:16:04 +0100 Received: from email-l1.ulh.nhs.uk ([194.227.140.97]) by wangate.ulh.nhs.uk with ESMTP id <119042>; Thu, 25 Jul 2002 11:15:03 +0100 Received: by email-l1.ulh.nhs.uk with Internet Mail Service (5.5.2650.21) id ; Thu, 25 Jul 2002 11:07:14 +0100 Message-ID: From: "Webb Richard (ULHT)" To: "'linac-eng@plato.aristotle.net'" Subject: 2100CD klystrons and water - The solution Date: Thu, 25 Jul 2002 11:07:13 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Webb Richard (ULHT)" To: "'linac-eng@plato.aristotle.net'" Subject: 2100CD klystrons and water - The solution Date: Thu, 25 Jul 2002 11:07:13 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk A quick post to say thankyou to all those who suggested fixes to the problem below. After the original post was sent, FWD power dropped almost to zero and water continued to seep from the joint between solenoid and oil tank. We drilled the solenoid to release trapped water (about 5 litres came out). Once the water stopped coming out we pulled the klystron and drilled out the rivets on the lower cover. The klystron showed staining from the water, and the hidden RF connector was soaking wet. We dried it, left it overnight and reassembled everything. Problem solved. We are now wondering how best to protect the klystron from future leaks. Richard Webb Radiotherapy Technician ULH NHS trust. -----Original Message----- From: Webb Richard (ULHT) [mailto:Richard.Webb@ulh.nhs.uk] Sent: 17 July 2002 08:45 To: linac-eng@plato.aristotle.net Subject: 2100CD klystrons and water Good morning list, Yesterday our 2100CD sprang a water leak at the klystron solenoid inlet, soaking the top of the klystron solenoid. After drying thoroughly, water is still seeping from the join at the bottom of the klystron solenoid. We now have to re-peak the RF drive every ten minutes on each energy to get any output. We have replaced the main thyratron on Varians advice, but the problem remains. KLY I and KLY V look good on the scope, and AFC seems OK. Has anyone had any similar experiences with water leaks onto the klystron, or is it coincidence and we're barking up the wrong tree entirely? Richard Webb Radiotherapy Technician ULH NHS trust. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 25 15:37:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Xio7-0005bY-00; Thu, 25 Jul 2002 15:37:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0A9F61112F1; Thu, 25 Jul 2002 15:34:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA18622 for linac-eng-list; Thu, 25 Jul 2002 08:07:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA18618 for ; Thu, 25 Jul 2002 08:07:03 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g6PD6JW23039 for ; Thu, 25 Jul 2002 09:06:20 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C01.0047BFC5 ; Thu, 25 Jul 2002 09:03:41 -0400 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256C01.0047BEFC.00@mail.lrcc.on.ca> Date: Thu, 25 Jul 2002 09:03:39 -0400 Subject: Varian MLC Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Thu, 25 Jul 2002 09:03:39 -0400 Subject: Varian MLC Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello List: Lets get a good summer debate going. We are going to be purchasing a Millenium MLC in a couple of months. We have two 52 leaf MLC (Mark2?) and one 80 leaf (also Mark2?). What is the Millenium MLC like, more or less work than the older version? What kind of problems have you experienced? Is there anything that you wished you should have asked about when you went on the course? How was the course? Randy McVittie London Regional Cancer Centre London, Ontario 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 25 21:09:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Xnyu-0007BX-00; Thu, 25 Jul 2002 21:09:00 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D231C1112F1; Thu, 25 Jul 2002 21:05:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA24419 for linac-eng-list; Thu, 25 Jul 2002 12:41:36 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA24415 for ; Thu, 25 Jul 2002 12:41:34 -0500 (CDT) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA16143; Thu, 25 Jul 2002 12:37:36 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C01.0060A419 ; Thu, 25 Jul 2002 12:35:34 -0500 X-Lotus-FromDomain: MDACC To: Randy.McVittie@lrcc.on.ca Cc: linac-eng@plato.aristotle.net Message-ID: <86256C01.0060A35F.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 25 Jul 2002 12:37:59 -0500 Subject: Re: Varian MLC Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Randy.McVittie@lrcc.on.ca Cc: linac-eng@plato.aristotle.net Date: Thu, 25 Jul 2002 12:37:59 -0500 Subject: Re: Varian MLC Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Randy, Having worked on both Canadian and American versions {grin} along with the older Mark II, I can safely say It's the same but different. Seriously though, it is a pretty good machine. Be prepared for smaller motors that are easier to replace thanks to a Plexiglas template that gives locations. At first the motors had problems stalling, especially when the controller was left on overnight. The idle current to the brushes would leave a bad spot on the commutator of the motors. Ensuring the controller is off at night really helps. Troubleshooting is both easier and harder. The easy part is the troubleshooting board at the head. You can control any leaf/carriage without the cables or the magic black suitcase. With cables you can also do a lot of checks on the motor itself and elliminate motor controller boards. Very handy. The hard part is at the workstation. You use hyperterminal to communicate with the controller (not a PC). When things muck up the hyperterminal can give you a whole lot of information. The trouble is trying to decipher it. I hope that they cover that on course . I haven't been on course yet so I'm no expert but from what I've seen and experienced it is a good reliable device... just allow more time for PMs. One more thing: The cooling fans they have on the boards in the head are crap. They don't last at all. Maybe by now they have new ones but if not there are some ones out there you can substitute when they go that will last longer. Ed Rymes Accel Tech III M.D. Anderson Cancer Center As usual, anything I say is not the opinion of this institution and should not be interperated as an endorsement. That is as legaleeze as I get. Randy.McVittie@lrcc.on.ca on 07/25/2002 08:03:39 AM To: linac-eng@plato.aristotle.net cc: (bcc: Edward Rymes/MDACC) Subject: Varian MLC Hello List: Lets get a good summer debate going. We are going to be purchasing a Millenium MLC in a couple of months. We have two 52 leaf MLC (Mark2?) and one 80 leaf (also Mark2?). What is the Millenium MLC like, more or less work than the older version? What kind of problems have you experienced? Is there anything that you wished you should have asked about when you went on the course? How was the course? Randy McVittie London Regional Cancer Centre London, Ontario 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Jul 25 23:14:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Xpwc-0007Jj-00; Thu, 25 Jul 2002 23:14:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A9DE71112F1; Thu, 25 Jul 2002 23:11:13 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA27553 for linac-eng-list; Thu, 25 Jul 2002 15:01:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA27533 for ; Thu, 25 Jul 2002 15:01:20 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id HAA19272 for ; Fri, 26 Jul 2002 07:58:56 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 26 Jul 2002 08:03:44 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 26 Jul 2002 08:00:00 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 26 Jul 2002 07:59:59 +1200 From: "Dave Pinchin" To: , Subject: Re: 2100CD klystrons and water - The solution Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA27534 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 26 Jul 2002 07:59:59 +1200 From: "Dave Pinchin" To: , Subject: Re: 2100CD klystrons and water - The solution Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA27534 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, The absolute best way to stop the water getting into the klystron elctronics is replace the solenoid with one that doesn't leak...... IF water gets near the rf connectors on the klystron you need to pull the thing and replace the oil in the tank. Therefore I wouldn't worry about waterproofing the connector. I would much rather have it dismantleable for inspection / cleaning. -NOTE. the new model sol runs MUCH hotter than the older. Dave. >>> "Webb Richard (ULHT)" 25/07/02 22:07:13 >>> A quick post to say thankyou to all those who suggested fixes to the problem below. After the original post was sent, FWD power dropped almost to zero and water continued to seep from the joint between solenoid and oil tank. We drilled the solenoid to release trapped water (about 5 litres came out). Once the water stopped coming out we pulled the klystron and drilled out the rivets on the lower cover. The klystron showed staining from the water, and the hidden RF connector was soaking wet. We dried it, left it overnight and reassembled everything. Problem solved. We are now wondering how best to protect the klystron from future leaks. Richard Webb Radiotherapy Technician ULH NHS trust. -----Original Message----- From: Webb Richard (ULHT) [mailto:Richard.Webb@ulh.nhs.uk] Sent: 17 July 2002 08:45 To: linac-eng@plato.aristotle.net Subject: 2100CD klystrons and water Good morning list, Yesterday our 2100CD sprang a water leak at the klystron solenoid inlet, soaking the top of the klystron solenoid. After drying thoroughly, water is still seeping from the join at the bottom of the klystron solenoid. We now have to re-peak the RF drive every ten minutes on each energy to get any output. We have replaced the main thyratron on Varians advice, but the problem remains. KLY I and KLY V look good on the scope, and AFC seems OK. Has anyone had any similar experiences with water leaks onto the klystron, or is it coincidence and we're barking up the wrong tree entirely? Richard Webb Radiotherapy Technician ULH NHS trust. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 26 00:48:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17XrPG-0007OL-00; Fri, 26 Jul 2002 00:48:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4D0C51112F1; Fri, 26 Jul 2002 00:44:52 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA01738 for linac-eng-list; Thu, 25 Jul 2002 17:01:34 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from msgia.hs.uab.edu (gw5.uabmc.edu [164.111.37.252]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA01734 for ; Thu, 25 Jul 2002 17:01:30 -0500 (CDT) Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Thu, 25 Jul 2002 17:00:59 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Thu, 25 Jul 2002 17:00:49 -0500 From: "Stephen Jordan" To: Subject: Portal Vision interlock 2100EX sn1629, Varis 6.2.19, PVision 6.1 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 25 Jul 2002 17:00:49 -0500 From: "Stephen Jordan" To: Subject: Portal Vision interlock 2100EX sn1629, Varis 6.2.19, PVision 6.1 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I am currently having a strange I/L with my PV. Whenever the therapist moves to a predefined position (P1,P2, etc.), a interlock on the pendant occurs. The R-arm moves to the correct position, but will not move VERT or LONG. The captured interlock is defined as XYZ_CONV. If you select retract, the arm will move normally. Does this mean the arm needs to be recalibrated, or I'm losing a encoder signal intermittently? I'm not terribly experienced with the mechanical portion of PV. Has someone seen this I/L? Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 26 10:10:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Y0Ar-0000oB-00; Fri, 26 Jul 2002 10:10:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 24F2C1112F2; Fri, 26 Jul 2002 10:06:29 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA08003 for linac-eng-list; Fri, 26 Jul 2002 02:46:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA07999 for ; Fri, 26 Jul 2002 02:46:49 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 17Xzne-0001k5-00; Fri, 26 Jul 2002 08:46:10 +0100 Received: from relay.nhs.uk (194.62.42.142) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D3535290014A5A9 for linac-eng@plato.aristotle.net; Fri, 26 Jul 2002 08:46:15 +0100 Received: from WS0039.BSUH.nhs.uk (195.106.11.5) by relay.nhs.uk (Syntegra-2 6.5.016) id 3D2C1DFD002D721C for linac-eng@plato.aristotle.net; Fri, 26 Jul 2002 08:48:02 +0100 Received: from ntas024.brighton-healthcare.nhs.uk (unverified) by WS0039.BSUH.nhs.uk (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Fri, 26 Jul 2002 08:46:10 +0100 Received: by ntas024.brighton-healthcare.nhs.uk with Internet Mail Service (5.5.2653.19) id <235XD2AM>; Fri, 26 Jul 2002 08:46:10 +0100 Message-ID: <0E1923616624CE4D8AFD52EA2AB718731EF336@w2ksvr007> From: "Marlow, Robert" To: "'linac-eng@plato.aristotle.net'" Subject: Radiotherapy Engineer Vacancy @ Brighton Date: Fri, 26 Jul 2002 08:46:09 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Marlow, Robert" To: "'linac-eng@plato.aristotle.net'" Subject: Radiotherapy Engineer Vacancy @ Brighton Date: Fri, 26 Jul 2002 08:46:09 +0100 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Good morning list We're looking for an experienced electronics engineer and an advert will appear shortly in the IPEM green sheets. Best regards Bob Robert Marlow - Senior Electronics Engineer Medical Physics Department, Royal Sussex County Hospital, Eastern Road, BRIGHTON, East Sussex, BN2 5BE, England. Phone ++44 (0) 1273 664537 Fax ++44 (0) 1273 664698 Email robert.marlow@bsuh.nhs.uk PLEASE NOTE THAT OUR DOMAIN NAME HAS CHANGED TO @bsuh.nhs.uk - please amend your records. (Excluding South Coast Audit Addresses) This message and any attachments to it is intended only for the individual or company to which it is addressed and may contain information which is privileged, confidential or prohibited from disclosure or unauthorised use. 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If you have received it in error, please notify us immediately using the address postmaster@bsuh.nhs.uk and destroy the message and all copies in your possession. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 26 11:32:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Y1Sb-0001w1-00; Fri, 26 Jul 2002 11:32:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E900C1112F2; Fri, 26 Jul 2002 11:28:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA10034 for linac-eng-list; Fri, 26 Jul 2002 04:07:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nt-tvd-mail.nja.dk (212088077073.sonofon.dk [212.88.77.73]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id EAA10030 for ; Fri, 26 Jul 2002 04:07:49 -0500 (CDT) Received: FROM njapost.nja.dk BY nt-tvd-mail.nja.dk ; Fri Jul 26 11:10:37 2002 +0200 Received: from NJA-Message_Server by njapost.nja.dk with Novell_GroupWise; Fri, 26 Jul 2002 11:07:14 +0200 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Fri, 26 Jul 2002 11:06:39 +0200 From: "Torben Gade" To: Subject: CARR & FOIL Interlock Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA10031 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 26 Jul 2002 11:06:39 +0200 From: "Torben Gade" To: Subject: CARR & FOIL Interlock Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA10031 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello Varian Clinac 2100C2, #418 I have a problem with several CARR & FOIL interlocks. The carrousel are stopped at a wrong position but with the position pot at the same wrong position every time it stopped wrong. What stopped the carrousel motor ?, the position of the position pot or the switches indicating the position of the carrousel ?. Need both to be in the correct possition ?. Thanks for your help. Torben Gade Aalborg Sygehus Denmark 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Jul 26 15:29:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Y5AA-0003ls-00; Fri, 26 Jul 2002 15:29:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 770E61112F2; Fri, 26 Jul 2002 15:26:02 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA12337 for linac-eng-list; Fri, 26 Jul 2002 07:55:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA12333 for ; Fri, 26 Jul 2002 07:55:24 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g6QCsoW24909; Fri, 26 Jul 2002 08:54:50 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C02.004695D7 ; Fri, 26 Jul 2002 08:50:58 -0400 X-Lotus-FromDomain: LRCC To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net Message-ID: <85256C02.0046952B.00@mail.lrcc.on.ca> Date: Fri, 26 Jul 2002 08:50:56 -0400 Subject: Re: Portal Vision interlock 2100EX sn1629, Varis 6.2.19, PVision 6.1 Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net Date: Fri, 26 Jul 2002 08:50:56 -0400 Subject: Re: Portal Vision interlock 2100EX sn1629, Varis 6.2.19, PVision 6.1 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I haven't seen that interlock, yet. The manual says to check the INDICATIONS menu for more information. Press P2 to bring up the Clinical MENU then Press P2 again to get the INDICATIONS information Then check the Appendix of R-Arm Operators manual for more information as to what the hex values mean, it will narrow down which encoder to check for setup (Shoulder, Elbow or Lateral) I'd check all of the mechanincal linkages and make sure they are sound and re-seat all the cards in the R-Arm Control box. before you do anything else, doesn't take too long and I have had some little problems just go away after the R-Arm control box was openned and closed You may want to re-calibrate the arm. The other thing you may want to do is check that the encoders are in the right spot. Check your R-Arm manual Removal, Replacement and Adjustment Procedures there is notes on setting up the zero pulse for the Shoulder, Elbow and Lateral Encoder. Maybe one of those is not set up right. Randy McVittie London Regional Cancer Centre London, Ontario Canada 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 29 15:59:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZB3U-0005TD-00; Mon, 29 Jul 2002 15:59:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6B15F1112FC; Mon, 29 Jul 2002 15:54:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA13567 for linac-eng-list; Mon, 29 Jul 2002 07:58:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA13563 for ; Mon, 29 Jul 2002 07:58:39 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: CARR & FOIL Interlock Date: Mon, 29 Jul 2002 08:58:07 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386D0@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: CARR & FOIL Interlock Thread-Index: AcI0j2WjYLsM6KOVQkmk775GAbjbdACaSdNQ From: "Tim Cullen" To: "Torben Gade" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA13564 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="us-ascii" Subject: RE: CARR & FOIL Interlock Date: Mon, 29 Jul 2002 08:58:07 -0400 Thread-Topic: CARR & FOIL Interlock Thread-Index: AcI0j2WjYLsM6KOVQkmk775GAbjbdACaSdNQ From: "Tim Cullen" To: "Torben Gade" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA13564 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Torben, have you tried to recalibrate from the Mode Control board? The hex code given will point you in the right direction if it fails during this. The data book has the error codes and description of calibration. The answer to the question is yes you need both to be in the right position. The carrousel position code has to match the pot wiper voltage (I believe this is stored when calibrated). If not this is what gives the FOIL I/L. If the carrousel position code does not match what is called for from the mode bcd lines then this gives the CARR I/L. Tim Cullen > -----Original Message----- > From: Torben Gade [mailto:u00058@aas.nja.dk] > Sent: Friday, July 26, 2002 5:07 AM > To: linac-eng@plato.aristotle.net > Subject: CARR & FOIL Interlock > > > Hello > > Varian Clinac 2100C2, #418 > > I have a problem with several CARR & FOIL interlocks. The > carrousel are stopped at a wrong position but with the > position pot at the same wrong position every time it stopped wrong. > > What stopped the carrousel motor ?, the position of the > position pot or the switches indicating the position of the > carrousel ?. Need both to be in the correct possition ?. > > Thanks for your help. > > Torben Gade > Aalborg Sygehus > Denmark > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 29 16:43:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZBjx-0006ck-00; Mon, 29 Jul 2002 16:43:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3B87A1112FC; Mon, 29 Jul 2002 16:38:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA14850 for linac-eng-list; Mon, 29 Jul 2002 09:16:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA14846 for ; Mon, 29 Jul 2002 09:16:27 -0500 (CDT) Received: from jyorke ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Mon, 29 Jul 2002 11:18:44 -0300 From: "Greg MacKinnon" To: "LinacEng" Subject: MLC Controller Computer Date: Mon, 29 Jul 2002 11:12:58 -0300 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Greg MacKinnon" To: "LinacEng" Subject: MLC Controller Computer Date: Mon, 29 Jul 2002 11:12:58 -0300 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have a Mark 2 52 leaf MLC on a 600C machine. At my Varis workstation I have the message of "CONTROLLER IL - CLINAC COM". On the Combo Communication PCB board when in the MLC controller computer the DS1 LED is lit. So replaced the Combo Comunnication PCB and the DS1 LED is still on. The notes in the databook indicate that when ON an active or asserted interlock status. Does anyone have ideas of what may be causing this problem? __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8000 x2163 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 29 17:19:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZCJO-0007LC-00; Mon, 29 Jul 2002 17:19:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A63781112FC; Mon, 29 Jul 2002 17:15:17 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA15521 for linac-eng-list; Mon, 29 Jul 2002 09:44:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pm03sm.rst.cw.net (PM03SM.RST.CW.NET [204.71.247.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA15515 for ; Mon, 29 Jul 2002 09:44:05 -0500 (CDT) Received: from exch1.sjha.org ([208.138.164.130]) by PM03SM.RST.CW.NET (PMDF V6.0-24 #47873) with ESMTP id <0H000B78UM9BW2@PM03SM.RST.CW.NET> for linac-eng@plato.aristotle.net; Mon, 29 Jul 2002 14:43:59 +0000 (GMT) Received: by exch1.sjha.org with Internet Mail Service (5.5.2653.19) id ; Mon, 29 Jul 2002 10:43:09 -0400 Content-return: allowed Date: Mon, 29 Jul 2002 10:44:00 -0400 From: "Moore, Lee" Subject: 2300 c/d target interlock To: "'linac-eng@plato.aristotle.net'" Message-id: <51F29D213A51D511828200805FE6C38745F5FA@exch3.sjha.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset=iso-8859-1 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-return: allowed Date: Mon, 29 Jul 2002 10:44:00 -0400 From: "Moore, Lee" Subject: 2300 c/d target interlock To: "'linac-eng@plato.aristotle.net'" Content-type: text/plain; charset=iso-8859-1 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk I have a 2300 c/d with intermittent target faults . found target not moving in/out freely thus not closing switches at times. Is there a specific lubrication for the shaft and or procedure for cleaning. Any suggestions would be appreciated. thanks 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 29 21:09:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZFt6-0007xl-00; Mon, 29 Jul 2002 21:09:00 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 173981112FC; Mon, 29 Jul 2002 21:04:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24399 for linac-eng-list; Mon, 29 Jul 2002 13:28:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [192.234.106.2] ([192.234.106.2]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA24392 for ; Mon, 29 Jul 2002 13:28:01 -0500 (CDT) From: John.McGee@lvh.com Received: from lvhlsgcs2.lvh.com by [192.234.106.2] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 29 Jul 2002 18:28:01 UT X-Internal-ID: 3D45762E00000248 Received: from lvh.com (192.234.106.35) by lvhlsgcs2.lvh.com (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 29 Jul 2002 13:39:13 -0400 Message-ID: Date: Mon, 29 Jul 2002 13:43:00 -0400 To: linac-eng@plato.aristotle.net Subject: SL-25 Hand Controllers Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.McGee@lvh.com X-Internal-ID: 3D45762E00000248 Date: Mon, 29 Jul 2002 13:43:00 -0400 To: linac-eng@plato.aristotle.net Subject: SL-25 Hand Controllers Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Does anyone know of a source for the springs that go around the thumb wheels on the Hand Held Controllers for an Elekta SL 25 or Precise. I have found the potentiometers( had to buy 500 of them, but still cost less than a new HHC.) but now I need the springs. Thanks for any help in advance and if you need a potentiometer give me a call. John McGee John and Dorothy Morgan Cancer Center Lehigh Valley Hospital Allentown,PA. 18105 610-402-0729 Please note that if you received this message in error,you are hereby notified that any dissemination of this communication is strictly prohibited. Please notify me immediately by reply e-mail and delete all copies of the original message. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Jul 29 22:30:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZH9m-00086J-00; Mon, 29 Jul 2002 22:30:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 49BF91112FC; Mon, 29 Jul 2002 22:25:37 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA26309 for linac-eng-list; Mon, 29 Jul 2002 15:02:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA26305 for ; Mon, 29 Jul 2002 15:02:25 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Mon, 29 Jul 2002 15:26:28 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFD8@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Moore, Lee'" , "'linac-eng@plato.aristotle.net'" Subject: RE: 2300 c/d target interlock Date: Mon, 29 Jul 2002 15:26:17 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Moore, Lee'" , "'linac-eng@plato.aristotle.net'" Subject: RE: 2300 c/d target interlock Date: Mon, 29 Jul 2002 15:26:17 -0400 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Be sure the black air control solenoids ( Humphreys?) are working properly, no leaks, pressure is ok at 45, etc. before blaming the target drive assembly. Most of my target motion problems have been in that area. > -----Original Message----- > From: Moore, Lee [SMTP:lmoore@sjha.org] > Sent: Monday, July 29, 2002 10:44 AM > To: 'linac-eng@plato.aristotle.net' > Subject: 2300 c/d target interlock > > I have a 2300 c/d with intermittent target faults . found target not > moving > in/out freely thus not closing switches at times. Is there a specific > lubrication for the shaft and or procedure for cleaning. Any suggestions > would be appreciated. thanks 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 30 00:08:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZIh1-0008Hj-00; Tue, 30 Jul 2002 00:08:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C66F31112F4; Tue, 30 Jul 2002 00:04:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA29821 for linac-eng-list; Mon, 29 Jul 2002 16:39:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz ([203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA29816 for ; Mon, 29 Jul 2002 16:39:22 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA13541 for ; Tue, 30 Jul 2002 09:36:30 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Tue, 30 Jul 2002 09:41:40 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 30 Jul 2002 09:37:57 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 30 Jul 2002 09:37:40 +1200 From: "Dave Pinchin" To: , Subject: Re: 2300 c/d target interlock Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA29817 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 30 Jul 2002 09:37:40 +1200 From: "Dave Pinchin" To: , Subject: Re: 2300 c/d target interlock Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA29817 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk G'day, While you are in there it's worth while opening the air ram and checking the bore for rubbing. And also listen at the solenoid valve outlet for leakage. This could indicate air ram problems or solenoid valve problems. Good luck. Dave >>> "Moore, Lee" 30/07/02 02:44:00 >>> I have a 2300 c/d with intermittent target faults . found target not moving in/out freely thus not closing switches at times. Is there a specific lubrication for the shaft and or procedure for cleaning. Any suggestions would be appreciated. thanks ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 30 04:05:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZMOb-0000GN-00; Tue, 30 Jul 2002 04:05:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2CD661112F4; Tue, 30 Jul 2002 04:01:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA03164 for linac-eng-list; Mon, 29 Jul 2002 20:42:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web20808.mail.yahoo.com (web20808.mail.yahoo.com [216.136.226.197]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id UAA03157 for ; Mon, 29 Jul 2002 20:42:02 -0500 (CDT) Message-ID: <20020730014201.57179.qmail@web20808.mail.yahoo.com> Received: from [152.104.13.246] by web20808.mail.yahoo.com via HTTP; Mon, 29 Jul 2002 18:42:01 PDT Date: Mon, 29 Jul 2002 18:42:01 -0700 (PDT) From: M chu Subject: linac performance To: linac-eng@plato.aristotle.net In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 29 Jul 2002 18:42:01 -0700 (PDT) From: M chu Subject: linac performance To: linac-eng@plato.aristotle.net In-Reply-To: Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk good day, my center is using the siemens KD2 with MLC for the IMRT application. We are think of purchasing the second machine for the IMRT treatment. you opinion and experience of the performance for Varian+MLC, siemens primus+MLC, and elekta precise+MLC will be very valuable for us. please give us you comment, i believe it will reveal more truth than the marketing people. thanks in advance. moises chu physics department pamela youde hosital hong kong __________________________________________________ Do You Yahoo!? Yahoo! Health - Feel better, live better http://health.yahoo.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 30 04:31:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZMnO-0000Ho-00; Tue, 30 Jul 2002 04:31:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 85BBA1112F4; Tue, 30 Jul 2002 04:26:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA03570 for linac-eng-list; Mon, 29 Jul 2002 21:10:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from msgia.hs.uab.edu (gw5.uabmc.edu [164.111.37.252]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA03566 for ; Mon, 29 Jul 2002 21:10:30 -0500 (CDT) Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Mon, 29 Jul 2002 21:09:56 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Mon, 29 Jul 2002 21:09:41 -0500 From: "Stephen Jordan" To: Subject: Portal Vision R-arm mechanical overload Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 29 Jul 2002 21:09:41 -0500 From: "Stephen Jordan" To: Subject: Portal Vision R-arm mechanical overload Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Can anyone tell me how the mechanical overload on the PV elbow works? Is the overload microswitch supposed to be closed in normal circumstances? How is the mechanism reset? I'm dyin' here.......LOL ;) Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 30 04:33:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZMoq-0000Hw-00; Tue, 30 Jul 2002 04:33:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C77ED1112F4; Tue, 30 Jul 2002 04:28:18 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA03698 for linac-eng-list; Mon, 29 Jul 2002 21:15:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sccrmhc01.attbi.com (sccrmhc01.attbi.com [204.127.202.61]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA03691 for ; Mon, 29 Jul 2002 21:15:21 -0500 (CDT) Received: from office ([12.245.114.94]) by sccrmhc01.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020730021450.GPUH23732.sccrmhc01.attbi.com@office>; Tue, 30 Jul 2002 02:14:50 +0000 Message-ID: <001f01c23770$6407e8e0$5e72f50c@mshome.net> From: "j.yorke" To: "Moore, Lee" , References: <51F29D213A51D511828200805FE6C38745F5FA@exch3.sjha.org> Subject: Re: 2300 c/d target interlock Date: Mon, 29 Jul 2002 22:25:36 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "j.yorke" To: "Moore, Lee" , Subject: Re: 2300 c/d target interlock Date: Mon, 29 Jul 2002 22:25:36 -0400 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Lee, I have been having similiar problems with some of the newer high energies. (mostly between SN1100 and 1560) What I had found is that there should be a flow restrictor added to the electron air line(exhaust) at the humphrey valve. (new style) This prevents the target assembly from slamming into position when coming out of low X. The actual part# is in the data book. For some reason, the diagram for the new style air system is in the stand section of the databook. If you look in the gantry section you will only find the older style humphreys. You will need to order the flow restrictor and the fitting to couple to the valve. Haven't had any reoccurences since the restrictors were installed. Hope this helps Jeremy ----- Original Message ----- From: "Moore, Lee" To: Sent: Monday, July 29, 2002 10:44 AM Subject: 2300 c/d target interlock > I have a 2300 c/d with intermittent target faults . found target not moving > in/out freely thus not closing switches at times. Is there a specific > lubrication for the shaft and or procedure for cleaning. Any suggestions > would be appreciated. thanks > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 30 17:06:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZYaG-0007NG-00; Tue, 30 Jul 2002 17:06:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3ACF11112F5; Tue, 30 Jul 2002 17:01:53 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA11321 for linac-eng-list; Tue, 30 Jul 2002 09:05:33 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from swentimc002.swchsc.on.ca ([142.76.1.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA11317 for ; Tue, 30 Jul 2002 09:05:32 -0500 (CDT) Received: by swentimc002.swchsc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 30 Jul 2002 09:50:54 -0500 Message-ID: From: "Rozenblat, Alex" To: "'linac'" Subject: Siemens mevatron arcing. Date: Tue, 30 Jul 2002 09:04:59 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'linac'" Subject: Siemens mevatron arcing. Date: Tue, 30 Jul 2002 09:04:59 -0500 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hello, respectable society We have a very puzzling situation on one of our Mevatrons. During beam once in a while there happens an arc. I would describe its sound like a very sharp whip crack inside glass jar. The funny part is that it does not interrupt beam and it does not invoke any electronics interlocks which are usually very susceptible to the noise generated during arc. Beam just sails through. It seems to me that this is an internal arc and something (internal voice?, occasional hick-ups?) tells me it's related to RF circulator or high power load. I could be severely wrong but if anyone experienced this situation before - let me know, please. A couple more comments. Observing Forward power we did not see anything unusual, "RF reflected" - different story - a pulse form heavily breaths like asthmatic while beam is running and it's been reflected on Dose pulse which oscillations are clearly synchronised with "RF reflected" "breathing". By "breathing I mean low frequency movement up and down of the flat part of the pulse form. Due to this "breathing" we have occasional Dose rate interlocks (when linac has no strength to compensate big deviation of Dose pulse) but the main concern is that when the arc occurs a patient is scared so much that it sometimes wants to run off the bed. It's very scary - believe me. One more question: did anyone take off HP load? If we do it for internal observation will we have troubles later putting (don't confuse with Russian Putin) it back properly? Eagerly waiting for advices, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 30 18:58:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZaKn-0007bg-00; Tue, 30 Jul 2002 18:58:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB2921112FB; Tue, 30 Jul 2002 18:54:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA14079 for linac-eng-list; Tue, 30 Jul 2002 11:27:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.accuray.com (exchange.accuray.com [65.219.160.162]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA14075 for ; Tue, 30 Jul 2002 11:27:00 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Siemens mevatron arcing. Date: Tue, 30 Jul 2002 09:29:33 -0700 Message-ID: <634284F16B42C249B642E5AB43FD720B13C12E@exchange.accuray.com> Thread-Topic: Siemens mevatron arcing. Thread-Index: AcI341LbBPnnvpeORhikOGPJjx19NgAAcwtw From: "John Somers" To: "Rozenblat, Alex" , "linac" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA14076 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Siemens mevatron arcing. Date: Tue, 30 Jul 2002 09:29:33 -0700 Thread-Topic: Siemens mevatron arcing. Thread-Index: AcI341LbBPnnvpeORhikOGPJjx19NgAAcwtw From: "John Somers" To: "Rozenblat, Alex" , "linac" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA14076 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi Alex, You've probably thought of this--the injector electronics? If the arcing is there and as loud as you describe, then it's likely to leave carbon evidence. So you might be able to start tracking it down with a visual inspection of that area. Surprising that it doesn't show up more on the beam pulse though. Best wishes, John Somers -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Tuesday, July 30, 2002 7:05 AM To: 'linac' Subject: Siemens mevatron arcing. Hello, respectable society We have a very puzzling situation on one of our Mevatrons. During beam once in a while there happens an arc. I would describe its sound like a very sharp whip crack inside glass jar. The funny part is that it does not interrupt beam and it does not invoke any electronics interlocks which are usually very susceptible to the noise generated during arc. Beam just sails through. It seems to me that this is an internal arc and something (internal voice?, occasional hick-ups?) tells me it's related to RF circulator or high power load. I could be severely wrong but if anyone experienced this situation before - let me know, please. A couple more comments. Observing Forward power we did not see anything unusual, "RF reflected" - different story - a pulse form heavily breaths like asthmatic while beam is running and it's been reflected on Dose pulse which oscillations are clearly synchronised with "RF reflected" "breathing". By "breathing I mean low frequency movement up and down of the flat part of the pulse form. Due to this "breathing" we have occasional Dose rate interlocks (when linac has no strength to compensate big deviation of Dose pulse) but the main concern is that when the arc occurs a patient is scared so much that it sometimes wants to run off the bed. It's very scary - believe me. One more question: did anyone take off HP load? If we do it for internal observation will we have troubles later putting (don't confuse with Russian Putin) it back properly? Eagerly waiting for advices, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Jul 30 18:59:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZaLI-0007bl-00; Tue, 30 Jul 2002 18:59:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2CA1C1112FC; Tue, 30 Jul 2002 18:54:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA14135 for linac-eng-list; Tue, 30 Jul 2002 11:29:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA14131 for ; Tue, 30 Jul 2002 11:29:44 -0500 (CDT) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Tue, 30 Jul 2002 10:28:43 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Tue, 30 Jul 2002 10:28:34 -0600 From: "Robert Wood" To: Subject: Wanted 2100C Vendors Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_065A70AB.046520D5" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 30 Jul 2002 10:28:34 -0600 From: "Robert Wood" To: Subject: Wanted 2100C Vendors Content-Type: multipart/alternative; boundary="=_065A70AB.046520D5" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_065A70AB.046520D5 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable We are looking for a used 2100C. I have a very limited list of vendors. = Does anyone have a list or a particular vendor they have dealt with that = they could send me information on. =20 Thanks Woody Robert Wood=20 MSTI Boise, Idaho woodr@slrmc.org --=_065A70AB.046520D5 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
    We are looking for a used 2100C.  I have a very = limited=20 list of vendors. Does anyone have a list or a particular vendor they have = dealt=20 with that they could send me information on. 
    Thanks
    Woody
     
    Robert Wood
    MSTI
    Boise, Idaho
     
    woodr@slrmc.org
    --=_065A70AB.046520D5-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 31 00:39:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Zfem-000825-00; Wed, 31 Jul 2002 00:39:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4244B1112FA; Wed, 31 Jul 2002 00:34:56 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA15005 for linac-eng-list; Tue, 30 Jul 2002 11:59:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA15000 for ; Tue, 30 Jul 2002 11:59:49 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 30 Jul 2002 12:58:57 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFDB@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Siemens mevatron arcing. Date: Tue, 30 Jul 2002 12:58:52 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Rozenblat, Alex'" , "'linac'" Subject: RE: Siemens mevatron arcing. Date: Tue, 30 Jul 2002 12:58:52 -0400 Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk A metallic ping sound may be arcing inside the waveguide. I would check the waveguide arc sensor by tapping on it, perhaps increase sensitivity after writing down where it is set now. Your other symptom sounds like the AFC is oscillating or there is a line related problem. If it is the afc, maybe it sometimes gets far enough off resonance to cause an arc in the transmission guide. Look at the error signal, and see if the breathing goes away in afc manual mode. You can sync the scope on "line" to look for power supply problems, with the dose servo in open loop. but I would bet on the afc. If it is an older conventional machine, they had fairly crude mod fault protection, don't trip easily. I would check if the mod fault protection is ok. good luck -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Tuesday, July 30, 2002 10:05 AM To: 'linac' Subject: Siemens mevatron arcing. Hello, respectable society We have a very puzzling situation on one of our Mevatrons. During beam once in a while there happens an arc. I would describe its sound like a very sharp whip crack inside glass jar. The funny part is that it does not interrupt beam and it does not invoke any electronics interlocks which are usually very susceptible to the noise generated during arc. Beam just sails through. It seems to me that this is an internal arc and something (internal voice?, occasional hick-ups?) tells me it's related to RF circulator or high power load. I could be severely wrong but if anyone experienced this situation before - let me know, please. A couple more comments. Observing Forward power we did not see anything unusual, "RF reflected" - different story - a pulse form heavily breaths like asthmatic while beam is running and it's been reflected on Dose pulse which oscillations are clearly synchronised with "RF reflected" "breathing". By "breathing I mean low frequency movement up and down of the flat part of the pulse form. Due to this "breathing" we have occasional Dose rate interlocks (when linac has no strength to compensate big deviation of Dose pulse) but the main concern is that when the arc occurs a patient is scared so much that it sometimes wants to run off the bed. It's very scary - believe me. One more question: did anyone take off HP load? If we do it for internal observation will we have troubles later putting (don't confuse with Russian Putin) it back properly? Eagerly waiting for advices, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 31 17:41:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ZvbZ-0007oh-00; Wed, 31 Jul 2002 17:41:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 33ACA1112FB; Wed, 31 Jul 2002 17:36:29 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA16705 for linac-eng-list; Wed, 31 Jul 2002 09:23:34 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dcntmta02.spectrum-health.org (dcntmta02.spectrum-health.org [167.73.110.31]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA16692 for ; Wed, 31 Jul 2002 09:23:08 -0500 (CDT) From: neville.wiles@spectrum-health.org Received: by dcntmta02.spectrum-health.org with Internet Mail Service (5.5.2653.19) id ; Wed, 31 Jul 2002 10:22:24 -0400 Message-ID: <9BA17E080E6CD51195EE0020484023FF9C7865@dcntmsg03.spectrum-health.org> To: jsomers@accuray.com, Alex.Rozenblat@tsrcc.on.ca, linac-eng@plato.aristotle.net Subject: RE: Siemens Mevatron arcing. Date: Wed, 31 Jul 2002 10:23:10 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2389D.CC3C9AE0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org To: jsomers@accuray.com, Alex.Rozenblat@tsrcc.on.ca, linac-eng@plato.aristotle.net Subject: RE: Siemens Mevatron arcing. Date: Wed, 31 Jul 2002 10:23:10 -0400 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2389D.CC3C9AE0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2389D.CC3C9AE0 Content-Type: text/plain; charset="iso-8859-1" Hello, I have found that if you hear a sharp almost like a sharp bell ring it is usually in the transmission waveguide sections in the gantry area. You can find it by turning up the PFN in the service mode, this usually will cause it to arc (it may have to be at the questionable gantry angle). If it does, turn off the injector, driver if a klystron, detune afc in manual mode, and go in and listen while someone runs it for you. This should help, then it is just a painful take the sections apart and look for arcing at the junctions of the waveguide sections. Hope this helps. Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org -----Original Message----- From: John Somers [mailto:jsomers@accuray.com] Sent: Tuesday, July 30, 2002 12:30 PM To: Rozenblat, Alex; linac Subject: RE: Siemens mevatron arcing. Hi Alex, You've probably thought of this--the injector electronics? If the arcing is there and as loud as you describe, then it's likely to leave carbon evidence. So you might be able to start tracking it down with a visual inspection of that area. Surprising that it doesn't show up more on the beam pulse though. Best wishes, John Somers -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Tuesday, July 30, 2002 7:05 AM To: 'linac' Subject: Siemens mevatron arcing. Hello, respectable society We have a very puzzling situation on one of our Mevatrons. During beam once in a while there happens an arc. I would describe its sound like a very sharp whip crack inside glass jar. The funny part is that it does not interrupt beam and it does not invoke any electronics interlocks which are usually very susceptible to the noise generated during arc. Beam just sails through. It seems to me that this is an internal arc and something (internal voice?, occasional hick-ups?) tells me it's related to RF circulator or high power load. I could be severely wrong but if anyone experienced this situation before - let me know, please. A couple more comments. Observing Forward power we did not see anything unusual, "RF reflected" - different story - a pulse form heavily breaths like asthmatic while beam is running and it's been reflected on Dose pulse which oscillations are clearly synchronised with "RF reflected" "breathing". By "breathing I mean low frequency movement up and down of the flat part of the pulse form. Due to this "breathing" we have occasional Dose rate interlocks (when linac has no strength to compensate big deviation of Dose pulse) but the main concern is that when the arc occurs a patient is scared so much that it sometimes wants to run off the bed. It's very scary - believe me. One more question: did anyone take off HP load? If we do it for internal observation will we have troubles later putting (don't confuse with Russian Putin) it back properly? Eagerly waiting for advices, Alex Rozenblat TSRCC, Toronto ------_=_NextPart_001_01C2389D.CC3C9AE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Siemens Mevatron arcing.

    Hello,
    I have found that if you hear a sharp almost like a = sharp bell ring it is usually in the transmission waveguide sections in = the gantry area. You can find it by turning up the PFN in the service = mode, this usually will cause it to arc (it may have to be at the = questionable gantry angle).  If it does, turn off the injector, = driver if a klystron, detune afc in manual mode, and go in and listen = while someone runs it for you. This should help, then it is just a = painful take the sections apart and look for arcing at the junctions of = the waveguide sections.  Hope this helps.

    Neville Wiles
    Spectrum Health
    Grand Rapids, MI
    616) 391-3639
    Neville.Wiles@Spectrum-Health.org

    -----Original Message-----
    From: John Somers [mailto:jsomers@accuray.com]
    Sent: Tuesday, July 30, 2002 12:30 PM
    To: Rozenblat, Alex; linac
    Subject: RE: Siemens mevatron arcing.


    Hi Alex,
            You've = probably thought of this--the injector electronics?  If the arcing = is there and as loud as you describe, then it's likely to leave carbon = evidence.  So you might be able to start tracking it down with a = visual inspection of that area.  Surprising that it doesn't show = up more on the beam pulse though.

            Best = wishes,
            John = Somers


    -----Original Message-----
    From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.o= n.ca]
    Sent: Tuesday, July 30, 2002 7:05 AM
    To: 'linac'
    Subject: Siemens mevatron arcing.



    Hello, respectable society

    We have a very puzzling situation on one of our = Mevatrons.
    During beam once in a while there happens an arc. I = would describe its sound
    like a very sharp whip crack inside glass jar. The = funny part is that it
    does not interrupt beam and it does not invoke any = electronics interlocks
    which are usually very susceptible to the noise = generated during arc. Beam
    just sails through. It seems to me that this is an = internal arc and
    something (internal voice?, occasional hick-ups?) = tells me it's related to
    RF circulator or high power load. I could be = severely wrong but if anyone
    experienced this situation before - let me know, = please. A couple more
    comments. Observing Forward power we did not see = anything unusual, "RF
    reflected" - different story - a pulse form = heavily breaths like asthmatic
    while beam is running and it's been reflected on = Dose pulse which
    oscillations are clearly synchronised with "RF = reflected" "breathing". By
    "breathing I mean low frequency movement up and = down of the flat part of the
    pulse form. Due to this "breathing" we = have occasional Dose rate interlocks
    (when linac has no strength to compensate big = deviation of Dose pulse) but
    the main concern is that when the arc occurs a = patient is scared so much
    that it sometimes wants to run off the bed. It's = very scary - believe me.

    One more question: did anyone take off HP load? If we = do it for internal
    observation will we have troubles later putting = (don't confuse with Russian
    Putin) it back properly?

    Eagerly waiting for advices,
    Alex Rozenblat
    TSRCC, Toronto

    ------_=_NextPart_001_01C2389D.CC3C9AE0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 31 19:02:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Zwri-0007xA-00; Wed, 31 Jul 2002 19:02:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 639C91112FB; Wed, 31 Jul 2002 18:57:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA19323 for linac-eng-list; Wed, 31 Jul 2002 11:23:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA19319 for ; Wed, 31 Jul 2002 11:23:35 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Wed, 31 Jul 2002 12:23:00 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFDF@phsexch6.partners.org> From: "Maddox, Buford J" To: "'John Somers'" , "Rozenblat, Alex" , linac Subject: RE: Siemens mevatron arcing. Date: Wed, 31 Jul 2002 12:22:57 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'John Somers'" , "Rozenblat, Alex" , linac Subject: RE: Siemens mevatron arcing. Date: Wed, 31 Jul 2002 12:22:57 -0400 Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Cables flopping around with gantry rotation, arcing to injector, I have seen on several brands. Those little 1/4 w resistors make good fuses, good design idea. Where else have you seen arcing in the injector? -----Original Message----- From: John Somers [mailto:jsomers@accuray.com] Sent: Tuesday, July 30, 2002 12:30 PM To: Rozenblat, Alex; linac Subject: RE: Siemens mevatron arcing. Hi Alex, You've probably thought of this--the injector electronics? If the arcing is there and as loud as you describe, then it's likely to leave carbon evidence. So you might be able to start tracking it down with a visual inspection of that area. Surprising that it doesn't show up more on the beam pulse though. Best wishes, John Somers -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Tuesday, July 30, 2002 7:05 AM To: 'linac' Subject: Siemens mevatron arcing. Hello, respectable society We have a very puzzling situation on one of our Mevatrons. During beam once in a while there happens an arc. I would describe its sound like a very sharp whip crack inside glass jar. The funny part is that it does not interrupt beam and it does not invoke any electronics interlocks which are usually very susceptible to the noise generated during arc. Beam just sails through. It seems to me that this is an internal arc and something (internal voice?, occasional hick-ups?) tells me it's related to RF circulator or high power load. I could be severely wrong but if anyone experienced this situation before - let me know, please. A couple more comments. Observing Forward power we did not see anything unusual, "RF reflected" - different story - a pulse form heavily breaths like asthmatic while beam is running and it's been reflected on Dose pulse which oscillations are clearly synchronised with "RF reflected" "breathing". By "breathing I mean low frequency movement up and down of the flat part of the pulse form. Due to this "breathing" we have occasional Dose rate interlocks (when linac has no strength to compensate big deviation of Dose pulse) but the main concern is that when the arc occurs a patient is scared so much that it sometimes wants to run off the bed. It's very scary - believe me. One more question: did anyone take off HP load? If we do it for internal observation will we have troubles later putting (don't confuse with Russian Putin) it back properly? Eagerly waiting for advices, Alex Rozenblat TSRCC, Toronto 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Jul 31 21:07:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17Zyor-00084h-00; Wed, 31 Jul 2002 21:07:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3937011130B; Wed, 31 Jul 2002 21:02:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA21533 for linac-eng-list; Wed, 31 Jul 2002 13:18:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep02.biz.rr.com (fep02.biz.rr.com [24.30.199.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA21529 for ; Wed, 31 Jul 2002 13:18:55 -0500 (CDT) Received: from pent4 ([24.174.72.124]) by fep02.biz.rr.com with ESMTP id <20020731181836.FYRN1492.fep02.biz.rr.com@pent4>; Wed, 31 Jul 2002 14:18:36 -0400 From: "Thomas McCausland" To: "Rozenblat, Alex" , "'linac-eng@plato.aristotle.net'" Date: Wed, 31 Jul 2002 13:18:21 -0500 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Siemens mevatron arcing. Reply-To: acceltek@acceltekservice.com Message-ID: <3D47E39D.10388.F676DD@localhost> In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: "Rozenblat, Alex" , "'linac-eng@plato.aristotle.net'" Date: Wed, 31 Jul 2002 13:18:21 -0500 Content-type: text/plain; charset=US-ASCII Subject: Re: Siemens mevatron arcing. Reply-To: acceltek@acceltekservice.com In-reply-to: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk > > Hello, respectable society > > We have a very puzzling situation on one of our Mevatrons. > During beam once in a while there happens an arc. Snip------------------------------------- Alex, I have read many of the replys to your post, and agree with most of them in regards to finding the source of your problem. It does sound like you have some internal waveguide arcing from what you describe. Could be in the transmission waveguide going to the accelerating waveguide (most probable), or even in the accelerating guide (pretty rare). I WOULD remove the HP load and inspect it for waterleaks. While not real common, those suckers do spring leaks and can cause a real mess, and lots of dollars spent if not replaced fairly quickly. Shouldn't be any problem removing / inspecting / replacing the load. You dont say if you have a maggie machine or a klystron machine. I would dissagree with the poster who said to turn off the R.F. driver when looking for the arcing. Correct me if im wrong, but I think with no R.F. source going to the klystron (assuming its a klystron machine), you will get little or no R.F. out of the Klystron, and be defeating your purpose. If you want to use the 'sound' method of locating the source of the arcing, I think all R.F. components must be on. Of course have the injector off, tune off frequency (this might even worsen the arcing and make it better to troubleshoot, close the jaws, get a survey meter and survey your work area. If you have a guide that is making a lot of darkcurrent, this 'sound method is probably going ot be impossible due to the dose rate in the room. One more thing, dont run the machine too long off frequency if you use this method, search in quick spurts (two people needed). The only other method is physical inspection of the internals of the transmission waveguide, circulator (look for cracked ferrites), waveguide ceramic window, HP load etc... These can be tough to track sometimes.Good luck. Thomas W. McCausland AccelTek Inc. http://www.acceltekservice.com 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 01 13:32:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17aEBg-0003fJ-00; Thu, 01 Aug 2002 13:32:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8944411130F; Thu, 1 Aug 2002 13:26:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA07111 for linac-eng-list; Thu, 1 Aug 2002 05:51:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA07107 for ; Thu, 1 Aug 2002 05:51:50 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 17aDY6-0002iZ-00; Thu, 01 Aug 2002 11:51:18 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D3536E1002153FD for linac-eng@plato.aristotle.net; Thu, 1 Aug 2002 11:51:08 +0100 Received: from sabari.essexrivers.nhs.uk (195.104.128.100) by relay.nhs.uk (Syntegra-4 6.5.016) id 3D41668C000BC1D0 for linac-eng@plato.aristotle.net; Thu, 1 Aug 2002 11:53:28 +0100 Received: from thames.essexrivers.nhs.uk (unverified) by sabari.essexrivers.nhs.uk (Content Technologies SMTPRS 4.2.1) with ESMTP id for ; Thu, 1 Aug 2002 11:46:17 +0100 Received: by THAMES with Internet Mail Service (5.5.2650.21) id ; Thu, 1 Aug 2002 11:45:23 +0100 Message-ID: <1D2BB24BCAA2D311875200902798A0DE033E91A6@THAMES> From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: Varian Sim Couch Rotation Date: Thu, 1 Aug 2002 11:45:22 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: Varian Sim Couch Rotation Date: Thu, 1 Aug 2002 11:45:22 +0100 Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hi All I am having some trouble with an Exact couch on a Varian CDX simulator. We get Bad Axis(v) on the floor rotation, which I can stop by increasing the min ADC parameter but then the floor oscillates when doing an autoset. Could somebody tell me what values they have in the axis setup for floor rotation. (Accel, Decel, Stop distance and Min ADC) Many thanks Chris Coley (Technician) Essex County Hospital ********************************************************************************** Essex Rivers Healthcare NHS Trust does not enter into contractual negotiations, contracts or any other form of legally binding agreement via e-mail. Therefore this message does not constitute any form of contractual offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or accept any legal responsibility for the contents of this message save where it is sent by one of it's employees in the course of his or her employment. 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This footnote also confirms that this email message has been swept by Sophos for the presence of computer viruses. ********************************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 02 14:03:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ab9Q-0001Pe-00; Fri, 02 Aug 2002 14:03:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3A510111313; Fri, 2 Aug 2002 13:57:39 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA28637 for linac-eng-list; Fri, 2 Aug 2002 06:31:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pat.uio.no (pat.uio.no [129.240.130.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA28633 for ; Fri, 2 Aug 2002 06:31:55 -0500 (CDT) Received: from fhume.uio.no ([129.240.130.23]) by pat.uio.no with esmtp (Exim 2.12 #7) id 17aaev-0002ve-00 for linac-eng@plato.aristotle.net; Fri, 2 Aug 2002 13:31:53 +0200 Received: from pcdnrb270.uio.no ([129.240.141.87] helo=pcdnr515.klinmed.uio.no) by fhume.uio.no with esmtp (Exim 2.12 #2) id 17aaev-00001r-00 for linac-eng@plato.aristotle.net; Fri, 2 Aug 2002 13:31:53 +0200 Message-Id: <5.1.0.14.2.20020802132137.009e5660@uio-pop.uio.no> X-Sender: ahjelmas@uio-pop.uio.no X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Fri, 02 Aug 2002 13:31:43 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Siemens Primus Relay Board I/L Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: ahjelmas@uio-pop.uio.no Date: Fri, 02 Aug 2002 13:31:43 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Siemens Primus Relay Board I/L Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Two weeks after we replaced the two Intel 8255 with NEC UPD71055 on Function Controller #2, we have not got any more Relay Board I/L's. So it seems like the Intel's were to noise sensitive. Thanks again. Arne Hjelmas The norwegian radium hospital Oslo Norway 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 02 15:39:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17aceS-0002Ax-00; Fri, 02 Aug 2002 15:39:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0394F111310; Fri, 2 Aug 2002 15:33:46 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA29786 for linac-eng-list; Fri, 2 Aug 2002 08:06:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dcntmta02.spectrum-health.org (dcntmta02.spectrum-health.org [167.73.110.31]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA29781 for ; Fri, 2 Aug 2002 08:06:31 -0500 (CDT) From: neville.wiles@spectrum-health.org Received: by dcntmta02.spectrum-health.org with Internet Mail Service (5.5.2653.19) id ; Fri, 2 Aug 2002 09:05:54 -0400 Message-ID: <9BA17E080E6CD51195EE0020484023FF9C7867@dcntmsg03.spectrum-health.org> To: lwessel@iupui.edu, neville.wiles@spectrum-health.org, jsomers@accuray.com, Alex.Rozenblat@tsrcc.on.ca, linac-eng@plato.aristotle.net Subject: RE: Siemens Mevatron arcing. Date: Fri, 2 Aug 2002 09:06:40 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C23A25.714651B0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org To: lwessel@iupui.edu, neville.wiles@spectrum-health.org, jsomers@accuray.com, Alex.Rozenblat@tsrcc.on.ca, linac-eng@plato.aristotle.net Subject: RE: Siemens Mevatron arcing. Date: Fri, 2 Aug 2002 09:06:40 -0400 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C23A25.714651B0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C23A25.714651B0 Content-Type: text/plain; charset="iso-8859-1" Hello, Sorry about the RF Driver thing Tim was right about shutting it off.(is my nose bleeding?) You never said what kind of a Mevatron it is. If it has a gantry mounted maggie why don't you give me a call. Neville Wiles Spectrum Health Grand Rapids, MI (616) 391-3639 Neville.Wiles@Spectrum-Health.org -----Original Message----- From: Wessel, Lester D [mailto:lwessel@iupui.edu] Sent: Thursday, August 01, 2002 1:15 PM To: neville.wiles@spectrum-health.org; jsomers@accuray.com; Alex.Rozenblat@tsrcc.on.ca; linac-eng@plato.aristotle.net Subject: RE: Siemens Mevatron arcing. Hello, Keep in mind that if it is arcing inside the transmission waveguide, then your SF6 gas should be breaking down from the electrical arc. This breakdown will generate a very pungent smell of sulfur (smells like rotten eggs). Assuming you have not already purged the system of SF6, crack open the vent valves to detect this odor. Do not take big breaths since the SF6 can suffocate you and phosgene gas (I believe) is produced and is the source of the nasty odor. Phosgene is also a severe respiratory irritant. Little whiffs of the gas coming out will tell the story and check at both outlets. If you don't detect this odor, I would be surprised if you had arcing inside the transmission waveguide. It should get progressive worse as more arcing occurrs. Good luck, Lester Wessel -----Original Message----- From: neville.wiles@spectrum-health.org [mailto:neville.wiles@spectrum-health.org] Sent: Wednesday, July 31, 2002 9:23 AM To: jsomers@accuray.com; Alex.Rozenblat@tsrcc.on.ca; linac-eng@plato.aristotle.net Subject: RE: Siemens Mevatron arcing. Hello, I have found that if you hear a sharp almost like a sharp bell ring it is usually in the transmission waveguide sections in the gantry area. You can find it by turning up the PFN in the service mode, this usually will cause it to arc (it may have to be at the questionable gantry angle). If it does, turn off the injector, driver if a klystron, detune afc in manual mode, and go in and listen while someone runs it for you. This should help, then it is just a painful take the sections apart and look for arcing at the junctions of the waveguide sections. Hope this helps.Neville Wiles Spectrum Health Grand Rapids, MI 616) 391-3639 Neville.Wiles@Spectrum-Health.org -----Original Message----- From: John Somers [ mailto:jsomers@accuray.com ] Sent: Tuesday, July 30, 2002 12:30 PM To: Rozenblat, Alex; linac Subject: RE: Siemens mevatron arcing. Hi Alex, You've probably thought of this--the injector electronics? If the arcing is there and as loud as you describe, then it's likely to leave carbon evidence. So you might be able to start tracking it down with a visual inspection of that area. Surprising that it doesn't show up more on the beam pulse though. Best wishes, John Somers -----Original Message----- From: Rozenblat, Alex [ mailto:Alex.Rozenblat@tsrcc.on.ca ] Sent: Tuesday, July 30, 2002 7:05 AM To: 'linac' Subject: Siemens mevatron arcing. Hello, respectable society We have a very puzzling situation on one of our Mevatrons. During beam once in a while there happens an arc. I would describe its sound like a very sharp whip crack inside glass jar. The funny part is that it does not interrupt beam and it does not invoke any electronics interlocks which are usually very susceptible to the noise generated during arc. Beam just sails through. It seems to me that this is an internal arc and something (internal voice?, occasional hick-ups?) tells me it's related to RF circulator or high power load. I could be severely wrong but if anyone experienced this situation before - let me know, please. A couple more comments. Observing Forward power we did not see anything unusual, "RF reflected" - different story - a pulse form heavily breaths like asthmatic while beam is running and it's been reflected on Dose pulse which oscillations are clearly synchronised with "RF reflected" "breathing". By "breathing I mean low frequency movement up and down of the flat part of the pulse form. Due to this "breathing" we have occasional Dose rate interlocks (when linac has no strength to compensate big deviation of Dose pulse) but the main concern is that when the arc occurs a patient is scared so much that it sometimes wants to run off the bed. It's very scary - believe me. One more question: did anyone take off HP load? If we do it for internal observation will we have troubles later putting (don't confuse with Russian Putin) it back properly? Eagerly waiting for advices, Alex Rozenblat TSRCC, Toronto ------_=_NextPart_001_01C23A25.714651B0 Content-Type: text/html; charset="iso-8859-1" RE: Siemens Mevatron arcing.
    Hello,
     
    Sorry about the RF Driver thing Tim was right about shutting it off.(is my nose bleeding?)   You never said what kind of a Mevatron it is. If it  has a gantry mounted maggie why don't you give me a call.
     
    Neville Wiles
    Spectrum Health
    Grand Rapids, MI
    (616) 391-3639
    Neville.Wiles@Spectrum-Health.org
    -----Original Message-----
    From: Wessel, Lester D [mailto:lwessel@iupui.edu]
    Sent: Thursday, August 01, 2002 1:15 PM
    To: neville.wiles@spectrum-health.org; jsomers@accuray.com; Alex.Rozenblat@tsrcc.on.ca; linac-eng@plato.aristotle.net
    Subject: RE: Siemens Mevatron arcing.

    Hello,
    Keep in mind that if it is arcing inside the transmission waveguide, then your SF6 gas should be breaking down from the electrical arc. This breakdown will generate a very pungent smell of sulfur (smells like rotten eggs). Assuming you have not already purged the system of SF6, crack open the vent valves to detect this odor. Do not take big breaths since the SF6 can suffocate you and phosgene gas (I believe) is produced and is the source of the nasty odor. Phosgene is also a severe respiratory irritant. Little whiffs of the gas coming out will tell the story and check at both outlets. If you don't detect this odor, I would be surprised if you had arcing inside the transmission waveguide. It should get progressive worse as more arcing occurrs.
     
    Good luck,
    Lester Wessel
    -----Original Message-----
    From: neville.wiles@spectrum-health.org [mailto:neville.wiles@spectrum-health.org]
    Sent: Wednesday, July 31, 2002 9:23 AM
    To: jsomers@accuray.com; Alex.Rozenblat@tsrcc.on.ca; linac-eng@plato.aristotle.net
    Subject: RE: Siemens Mevatron arcing.

    Hello,
    I have found that if you hear a sharp almost like a sharp bell ring it is usually in the transmission waveguide sections in the gantry area. You can find it by turning up the PFN in the service mode, this usually will cause it to arc (it may have to be at the questionable gantry angle).  If it does, turn off the injector, driver if a klystron, detune afc in manual mode, and go in and listen while someone runs it for you. This should help, then it is just a painful take the sections apart and look for arcing at the junctions of the waveguide sections.  Hope this helps.Neville Wiles
    Spectrum Health
    Grand Rapids, MI
    616) 391-3639
    Neville.Wiles@Spectrum-Health.org

    -----Original Message-----
    From: John Somers [mailto:jsomers@accuray.com]
    Sent: Tuesday, July 30, 2002 12:30 PM
    To: Rozenblat, Alex; linac
    Subject: RE: Siemens mevatron arcing.


    Hi Alex,
            You've probably thought of this--the injector electronics?  If the arcing is there and as loud as you describe, then it's likely to leave carbon evidence.  So you might be able to start tracking it down with a visual inspection of that area.  Surprising that it doesn't show up more on the beam pulse though.

            Best wishes,
            John Somers


    -----Original Message-----
    From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca]
    Sent: Tuesday, July 30, 2002 7:05 AM
    To: 'linac'
    Subject: Siemens mevatron arcing.



    Hello, respectable society

    We have a very puzzling situation on one of our Mevatrons.
    During beam once in a while there happens an arc. I would describe its sound
    like a very sharp whip crack inside glass jar. The funny part is that it
    does not interrupt beam and it does not invoke any electronics interlocks
    which are usually very susceptible to the noise generated during arc. Beam
    just sails through. It seems to me that this is an internal arc and
    something (internal voice?, occasional hick-ups?) tells me it's related to
    RF circulator or high power load. I could be severely wrong but if anyone
    experienced this situation before - let me know, please. A couple more
    comments. Observing Forward power we did not see anything unusual, "RF
    reflected" - different story - a pulse form heavily breaths like asthmatic
    while beam is running and it's been reflected on Dose pulse which
    oscillations are clearly synchronised with "RF reflected" "breathing". By
    "breathing I mean low frequency movement up and down of the flat part of the
    pulse form. Due to this "breathing" we have occasional Dose rate interlocks
    (when linac has no strength to compensate big deviation of Dose pulse) but
    the main concern is that when the arc occurs a patient is scared so much
    that it sometimes wants to run off the bed. It's very scary - believe me.

    One more question: did anyone take off HP load? If we do it for internal
    observation will we have troubles later putting (don't confuse with Russian
    Putin) it back properly?

    Eagerly waiting for advices,
    Alex Rozenblat
    TSRCC, Toronto

    ------_=_NextPart_001_01C23A25.714651B0-- 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 06 15:34:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17c4TQ-0001Td-00; Tue, 06 Aug 2002 15:34:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 76F301112F1; Tue, 6 Aug 2002 15:27:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA18771 for linac-eng-list; Tue, 6 Aug 2002 07:35:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhost.ks.se (gate2.ks.se [193.10.63.101]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA18767 for ; Tue, 6 Aug 2002 07:35:06 -0500 (CDT) Received: from ks.se ([136.155.36.170]) by mailhost.ks.se (Sun Internet Mail Server sims.4.0.2001.07.26.11.50.p9) with ESMTP id <0H0F009KO9JIV5@mailhost.ks.se> for linac-eng@plato.aristotle.net; Tue, 6 Aug 2002 14:33:18 +0200 (MET DST) Date: Tue, 06 Aug 2002 14:34:55 +0200 From: Walter Wyrsch Subject: No communication SL75/5 To: linac-eng@plato.aristotle.net Message-id: <3D4FC26F.9010007@ks.se> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed X-Accept-Language: en-us, sv User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id HAA18768 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 06 Aug 2002 14:34:55 +0200 From: Walter Wyrsch Subject: No communication SL75/5 To: linac-eng@plato.aristotle.net Content-type: text/plain; charset=ISO-8859-1; format=flowed X-Accept-Language: en-us, sv User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1 X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id HAA18768 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk Hej listmembers, we have a serious problem with our SL75/5 serial# 3088. There is no communication ! We run it as standalone (No Vericord) and use Helaxvisir as Verification System. We have further a Xlinac System attached witch listens to the communication via a current loop. We got this fault during troubleshooting a dosimetriefault ,when we were routing in the TCC. Symptoms: -only strange signs like 2222DDDD%%%%&&&$$$.... on VDU- and Inroom monitor. -no readout available at the verification system. -no communication to Xlinac. Troubleshooting we have done we have done: -visual check of wirewrap connectors at the back -pull all CPU cards and visual check of connectors -removed all CPU cards and checked on an other site -replaced EPROM´s on the Memory card with an older version -replaced processor card -connected a mellbug terminal from Elekta ,still strange characters -checked all power voltages, checked treshold on 5Vdc in TCC We are greatful for any help. thanks Walter and Magne 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 06 18:11:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17c6w6-0002SG-00; Tue, 06 Aug 2002 18:11:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D28111112F1; Tue, 6 Aug 2002 18:04:53 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA21650 for linac-eng-list; Tue, 6 Aug 2002 10:40:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA21646 for ; Tue, 6 Aug 2002 10:40:14 -0500 (CDT) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Tue, 06 Aug 2002 09:19:32 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Tue, 06 Aug 2002 09:19:12 -0600 From: "Robert Wood" To: Subject: Vendors for used equipment Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA21647 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 06 Aug 2002 09:19:12 -0600 From: "Robert Wood" To: Subject: Vendors for used equipment Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA21647 Sender: owner-linac-eng@plato.aristotle.net I sent a message out about a week ago asking if anyone had some vendors for used equipment that I could talk with. The message showed uup in my mailbox but after having gotten no responses from the list I am wondering how many of you got the message. I have not seen much traffic and that makes me wonder. Are we getting out? 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 06 19:17:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17c7xd-0002Vs-00; Tue, 06 Aug 2002 19:17:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3F04B1112F1; Tue, 6 Aug 2002 19:10:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA23132 for linac-eng-list; Tue, 6 Aug 2002 11:44:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA23128 for ; Tue, 6 Aug 2002 11:44:18 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 6 Aug 2002 10:46:02 -0600 Received: from scf.sk.ca ([172.24.56.13]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002080610434902800 for ; Tue, 06 Aug 2002 10:43:49 -0600 Message-ID: <3D4FFCCF.B00E1D12@scf.sk.ca> Date: Tue, 06 Aug 2002 10:43:59 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: Linac list Subject: RE: SL25 hand held controllers Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 06 Aug 2002 10:43:59 -0600 From: Bob Penley Organization: Saskatoon Cancer Centre X-Accept-Language: en To: Linac list Subject: RE: SL25 hand held controllers Sender: owner-linac-eng@plato.aristotle.net Hi John I made replacement coil springs using a wire bender with .039" piano wire both items were purchase from a local hobby store. These coil springs have held up quite well in the thumb wheels and are about 7 years old now. Hope this helps you out. -- Robert Penley Senior Physics Technician Saskatoon Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 07 00:07:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17cCTo-0002pk-00; Wed, 07 Aug 2002 00:07:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7E1521112F2; Tue, 6 Aug 2002 23:59:58 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA27911 for linac-eng-list; Tue, 6 Aug 2002 16:12:40 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA27853 for ; Tue, 6 Aug 2002 16:12:27 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA04136 for ; Wed, 7 Aug 2002 09:08:17 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 7 Aug 2002 09:14:09 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 07 Aug 2002 09:11:13 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 07 Aug 2002 09:11:04 +1200 From: "Dave Pinchin" To: , Subject: Re: No communication SL75/5 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA27867 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 07 Aug 2002 09:11:04 +1200 From: "Dave Pinchin" To: , Subject: Re: No communication SL75/5 Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA27867 Sender: owner-linac-eng@plato.aristotle.net G'day, Symptoms: -only strange signs like 2222DDDD%%%%&&&$$$.... on VDU- This looks to me like a serial data problem. Wrong baud rate or inverted signal etc. I have seen a chip outputting at 9 baud !!!!! It's worth a check. Hang a scope on the line and check it out. baud = bits per second. Current loop-current flows in 'space' state. Good luck Dave. >>> Walter Wyrsch 7/08/02 00:34:55 >>> Hej listmembers, we have a serious problem with our SL75/5 serial# 3088. There is no communication ! We run it as standalone (No Vericord) and use Helaxvisir as Verification System. We have further a Xlinac System attached witch listens to the communication via a current loop. We got this fault during troubleshooting a dosimetriefault ,when we were routing in the TCC. Symptoms: -only strange signs like 2222DDDD%%%%&&&$$$.... on VDU- and Inroom monitor. -no readout available at the verification system. -no communication to Xlinac. Troubleshooting we have done we have done: -visual check of wirewrap connectors at the back -pull all CPU cards and visual check of connectors -removed all CPU cards and checked on an other site -replaced EPROM s on the Memory card with an older version -replaced processor card -connected a mellbug terminal from Elekta ,still strange characters -checked all power voltages, checked treshold on 5Vdc in TCC We are greatful for any help. thanks Walter and Magne ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 07 10:02:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17cLm1-0004bz-00; Wed, 07 Aug 2002 10:02:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ACA241112F4; Wed, 7 Aug 2002 09:55:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA07308 for linac-eng-list; Wed, 7 Aug 2002 02:29:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mons.uio.no (IDENT:7411@mons.uio.no [129.240.130.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA07304 for ; Wed, 7 Aug 2002 02:29:01 -0500 (CDT) Received: from arkimedes.uio.no ([129.240.130.15]) by mons.uio.no with esmtp (Exim 2.12 #7) id 17cLFZ-0000jk-00 for linac-eng@plato.aristotle.net; Wed, 7 Aug 2002 09:28:57 +0200 Received: from pcdnrb270.uio.no ([129.240.141.87] helo=pcdnr515.klinmed.uio.no) by arkimedes.uio.no with esmtp (Exim 2.12 #7) id 17cLFZ-00042A-00 for linac-eng@plato.aristotle.net; Wed, 7 Aug 2002 09:28:57 +0200 Message-Id: <5.1.0.14.2.20020805121347.009f0a60@uio-pop.uio.no> X-Sender: ahjelmas@uio-pop.uio.no X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Wed, 07 Aug 2002 09:28:49 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Siemens Simview 3000 pot readout Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: ahjelmas@uio-pop.uio.no Date: Wed, 07 Aug 2002 09:28:49 +0200 To: linac-eng@plato.aristotle.net From: Arne =?iso-8859-1?Q?Hjelm=E5s?= Subject: Siemens Simview 3000 pot readout Sender: owner-linac-eng@plato.aristotle.net Hello list. we have a Siemens Simview (Mecaserto) 3000 simulator, S/N:4049 , SW V4.00. The Table Transverse readout to the monitor toggles and does not always show the correct value. I have replaced the potmeter without luck. The potmeter readout goes throught the B63AUT Interface PCB (which I think is a filter PCB) in the D160-rack. From there it goes to the B86AUT Analogic Board (which have a multiplexer and a A/D-converter). I think the error is in one of these two boards, which are made by the french company Mecaserto. Unfortunately, Siemens could not provide the schematic for the Analogic Board, and the schematic for the Interface PCB is so bad it's almost useless. Does anyone have the schematics for these two boards, or had this problem before? Regards Arne Hjelmas The norwegian radium hospital Oslo Norway 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 07 15:23:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17cQn2-0007j1-00; Wed, 07 Aug 2002 15:23:52 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 946D41112F1; Wed, 7 Aug 2002 15:16:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA10729 for linac-eng-list; Wed, 7 Aug 2002 07:27:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA10725 for ; Wed, 7 Aug 2002 07:27:06 -0500 (CDT) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 17cPnw-0004Gk-00; Wed, 07 Aug 2002 13:20:44 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D4FF51D00021149 for linac-eng@plato.aristotle.net; Wed, 7 Aug 2002 13:20:51 +0100 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-4 6.5.016) id 3D4FF36E0003550F for linac-eng@plato.aristotle.net; Wed, 7 Aug 2002 13:23:19 +0100 X-Internal-ID: 3D3BDCE0000CBC81 Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 7 Aug 2002 13:22:25 +0100 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Wed, 7 Aug 2002 13:21:44 +0100 Message-ID: <4BD1673C955CD41182DA00508BACF2DF01391CFB@YGC-MAIL> From: "Carfoot, Sidney" To: "'Linac Eng'" Subject: Flow Faults- 2100C /1415 / 5.4 Date: Wed, 7 Aug 2002 13:21:44 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3D3BDCE0000CBC81 From: "Carfoot, Sidney" To: "'Linac Eng'" Subject: Flow Faults- 2100C /1415 / 5.4 Date: Wed, 7 Aug 2002 13:21:44 +0100 Sender: owner-linac-eng@plato.aristotle.net Hi all, I have had many intermittent flow problems. Sometimes 3 a day, others none. Tried using a Max, min at various points in the chain. It did record a high of -7V on one occasion which caused a Flow fault. It clears immediately though which makes life difficult. Varian don't recommend shorting switches out just in case it 'pops' something really expensive; guess who pays? Anyway we had a particularly bad day, changed 2 flow switches, a 5 and a 1 gpm in the gantry. No cure. Also no others in stock. Did notice that the int/lck -12V chain was up and down. The -12V supply was stable. From the 100R feed the -12V was varying but only to approx. -10V, this didn't trip anything, and the Max/min DVM recorded the same at all switches. The reason the line was only going to -10V is due to a 500u Capacitor which masks the fault due to the charge or rather the discharge, which allows the fault to clear and re-establish the -12V. Disconnect the cap.. Flow int/lck. It would reset for a moment but then trip. Measured -12V along the chain and found the 5gpm flow switch in the stand u/s (for those in the States, faulty). the max/min DVM was good for this. Replace, refit cap --- cured. Moral of the story is disconnect the Capacitor and then fault find. It also helps if you have a Service manual with the full circuit information/description. Regards Sid Carfoot Senior Linac Engineer Glan Clwyd Hospital Wales UK This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Conwy and Denbighshire NHS Trust. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 07 18:04:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17cTIV-0001ik-00; Wed, 07 Aug 2002 18:04:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A7A0E1112F1; Wed, 7 Aug 2002 17:57:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA13262 for linac-eng-list; Wed, 7 Aug 2002 10:20:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA13253 for ; Wed, 7 Aug 2002 10:19:57 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.9) with SMTP id M2002080711153416206 for ; Wed, 07 Aug 2002 11:15:34 -0400 Received: from THEHUB-Message_Server by mail.mcg.edu with Novell_GroupWise; Wed, 07 Aug 2002 11:19:54 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Wed, 07 Aug 2002 11:19:37 -0400 From: "Michael Nordin" To: Subject: salary survey Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA13259 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 07 Aug 2002 11:19:37 -0400 From: "Michael Nordin" To: Subject: salary survey Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA13259 Sender: owner-linac-eng@plato.aristotle.net I need a salary survey for the southeast United States. Your help would be greatly appreciated. Thanks Mike Nordin Medical College of Georgia 706-721-2971 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 08 21:47:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ctFh-0008L4-00; Thu, 08 Aug 2002 21:47:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8D1AE1112F1; Thu, 8 Aug 2002 21:39:39 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA07258 for linac-eng-list; Thu, 8 Aug 2002 13:59:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep01.biz.rr.com (fep01.biz.rr.com [24.30.200.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA07254 for ; Thu, 8 Aug 2002 13:58:54 -0500 (CDT) Received: from pent4 ([24.174.72.124]) by fep01.biz.rr.com with ESMTP id <20020808185852.KWZJ1495.fep01.biz.rr.com@pent4> for ; Thu, 8 Aug 2002 14:58:52 -0400 From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 8 Aug 2002 13:58:50 -0500 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Looking for Jerry Laxton Reply-To: acceltek@acceltekservice.com Message-ID: <3D52791A.9672.1EAA95@localhost> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 8 Aug 2002 13:58:50 -0500 Subject: Looking for Jerry Laxton Reply-To: acceltek@acceltekservice.com Sender: owner-linac-eng@plato.aristotle.net I'm trying to find a current telephone number for Jerry Laxton. Jerry, if your out there, give me a ring, or if anyone knows his telephone number, I would appreciate it. Thanks, Tom McCausland AccelTek Inc. 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 09 01:09:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17cwP2-0008Us-00; Fri, 09 Aug 2002 01:09:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AF3821112F1; Fri, 9 Aug 2002 01:01:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA12279 for linac-eng-list; Thu, 8 Aug 2002 17:36:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from msgia.hs.uab.edu (gw5.uabmc.edu [164.111.37.252]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA12275 for ; Thu, 8 Aug 2002 17:36:33 -0500 (CDT) Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Thu, 08 Aug 2002 17:35:55 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Thu, 08 Aug 2002 17:35:49 -0500 From: "Stephen Jordan" To: Subject: ENSW interlocks, 2100C sn 078 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 08 Aug 2002 17:35:49 -0500 From: "Stephen Jordan" To: Subject: ENSW interlocks, 2100C sn 078 Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net We have had a intermittant problem with energy switch for a while now, and we're at odds with Varian as to how to repair it: The round disk on the energy switch that actuates the 6X or 15X microswitches is loose; it disallows microswitch activation at certain gantry angles. I have "adjusted" (READ: BENT, SHIMMED, TWEAKED) the bracket for about a year, because the Varian service rep stated we need a new energy switch. After much scrutiny of the energy switch mechanical design, I believe at some time in the past when replacing the air solenoid, the assy was not reassembled properly, allowing a small (~ .125") gap between the disk and the shaft that is ultimately the energy switch. It appears that one could snug the assy up....has anyone done this? If you were to snug the disk up, would that change the depth of the energy switch? Sorry to be so wordy, but I really do not want to take the guide to air on a 14 year old machine because of a microswitch not being activated. (!) Thanks in advance ya'll! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 09 15:16:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17d9cp-0003CY-00; Fri, 09 Aug 2002 15:16:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0959B1112F1; Fri, 9 Aug 2002 15:08:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA21443 for linac-eng-list; Fri, 9 Aug 2002 07:32:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ws3-5.us4.outblaze.com (205-158-62-95.outblaze.com [205.158.62.95]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA21438 for ; Fri, 9 Aug 2002 07:32:03 -0500 (CDT) Received: (qmail 5284 invoked by uid 1001); 9 Aug 2002 12:31:31 -0000 Message-ID: <20020809123131.5283.qmail@email.com> Content-Type: text/html; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Received: from [203.198.24.5] by ws3-5.us4.outblaze.com with http for kimyeung@email.com; Fri, 09 Aug 2002 07:31:31 -0500 From: "kim yeung" To: linac-eng@plato.aristotle.net Date: Fri, 09 Aug 2002 07:31:31 -0500 Subject: Re: Varian Portal imager problem X-Originating-Ip: 203.198.24.5 X-Originating-Server: ws3-5.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-Disposition: inline From: "kim yeung" To: linac-eng@plato.aristotle.net Date: Fri, 09 Aug 2002 07:31:31 -0500 Subject: Re: Varian Portal imager problem X-Originating-Ip: 203.198.24.5 X-Originating-Server: ws3-5.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net

    Hi Colleagues, Varina Portal Vision V6.1 (ion chamber type) We find some white horizontal lines on the portal images. Could anyone advise the causes of the white line? Is it possible to get ride of the white lines without changing the high voltage pcb?

    Thanks in advance.

     

    Kim Yeung

    --

    _______________________________________________
    Sign-up for your own FREE Personalized E-mail at Mail.com

    1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 09 15:59:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17dAIU-0003Yw-00; Fri, 09 Aug 2002 15:59:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AEED21112F7; Fri, 9 Aug 2002 15:51:27 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA22335 for linac-eng-list; Fri, 9 Aug 2002 08:34:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA22330; Fri, 9 Aug 2002 08:34:12 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id JAA16130; Fri, 9 Aug 2002 09:27:17 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma015973; Fri, 9 Aug 02 09:26:45 -0400 Subject: Re: ENSW interlocks, 2100C sn 078 To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Fri, 9 Aug 2002 08:33:07 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 08/09/2002 08:33:08 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Re: ENSW interlocks, 2100C sn 078 To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net Date: Fri, 9 Aug 2002 08:33:07 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 08/09/2002 08:33:08 AM Sender: owner-linac-eng@plato.aristotle.net Stephen,,, I've been fighting the same problem on unit Sn 363 for about two years now and have the same response from Varian... I've gotten real good at adjustment of micro switch.. I would like you to let me know if you get any fix info from someone out there as people don't to copy the list all the time with their reply's... Hope you get lots of answers.... Have a good weekend .. Larry Sullivan Baptist Hospital Pensacola Fl. 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Aug 10 00:18:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17dI5k-00053z-00; Sat, 10 Aug 2002 00:18:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D91CF1112F1; Sat, 10 Aug 2002 00:10:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA27317 for linac-eng-list; Fri, 9 Aug 2002 14:35:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtprelay6.dc2.adelphia.net (smtprelay6.dc2.adelphia.net [64.8.50.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA27307 for ; Fri, 9 Aug 2002 14:34:59 -0500 (CDT) Received: from jvc99812 ([24.55.243.233]) by smtprelay6.dc2.adelphia.net (Netscape Messaging Server 4.15 smtprelay6 Dec 7 2001 09:58:59) with SMTP id H0LD1E02.Z9V for ; Fri, 9 Aug 2002 15:34:26 -0400 Message-ID: <002001c23fdb$d29d3120$e9f33718@clvhoh.adelphia.net> From: "brmxm" To: Subject: remove Date: Fri, 9 Aug 2002 15:34:48 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01C23FBA.4B69FF60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "brmxm" To: Subject: remove Date: Fri, 9 Aug 2002 15:34:48 -0400 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C23FBA.4B69FF60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ------=_NextPart_000_001D_01C23FBA.4B69FF60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
     
    ------=_NextPart_000_001D_01C23FBA.4B69FF60-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Aug 10 17:38:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17dYJk-00062t-00; Sat, 10 Aug 2002 17:38:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E3FD51112F7; Sat, 10 Aug 2002 17:30:00 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA24820 for linac-eng-list; Sat, 10 Aug 2002 10:10:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r07.mx.aol.com (imo-r07.mx.aol.com [152.163.225.103]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA24815 for ; Sat, 10 Aug 2002 10:10:58 -0500 (CDT) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-r07.mx.aol.com (mail_out_v33.5.) id y.126.15012938 (4214) for ; Sat, 10 Aug 2002 11:10:21 -0400 (EDT) Message-ID: <126.15012938.2a8686dd@aol.com> Date: Sat, 10 Aug 2002 11:10:21 EDT Subject: Linac Donation To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_126.15012938.2a8686dd_boundary" X-Mailer: AOL 7.0 for Windows US sub 10517 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Sat, 10 Aug 2002 11:10:21 EDT Subject: Linac Donation To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_126.15012938.2a8686dd_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi List, I have a physicist here that has aked me if I can find out about any old Linacs out there that might be available for "donation to third world countries". I believe he would be receptive to some limited amount of payment for the machine also. I will forward any responses to him. Thanks, Dave Steimel MIRO Farmington Hills, MI., USA 248-553-0606 --part1_126.15012938.2a8686dd_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi List,
    I have a physicist here that has aked me if I can find out about any old Linacs out there that might be available for "donation to third world countries".  I believe he would be receptive to some limited amount of payment for the machine also. I will forward any responses to him.
    Thanks,
    Dave Steimel
    MIRO
    Farmington Hills, MI., USA
    248-553-0606     --part1_126.15012938.2a8686dd_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Aug 11 19:19:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17dwN6-0008FZ-00; Sun, 11 Aug 2002 19:19:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 17AAB1112F7; Sun, 11 Aug 2002 19:10:44 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA09911 for linac-eng-list; Sun, 11 Aug 2002 11:57:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta6.snfc21.pbi.net (mta6.snfc21.pbi.net [206.13.28.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09907 for ; Sun, 11 Aug 2002 11:57:50 -0500 (CDT) Received: from REI-DGPC1.pacbell.net ([216.103.85.50]) by mta6.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0H0O004Y9V4DJY@mta6.snfc21.pbi.net> for linac-eng@plato.aristotle.net; Sun, 11 Aug 2002 09:57:49 -0700 (PDT) Date: Sun, 11 Aug 2002 09:57:51 -0700 From: Domenic Greco Subject: Re: ENSW interlocks, 2100C sn 078 X-Sender: dgreco@postoffice.pacbell.net To: Stephen Jordan , linac-eng@plato.aristotle.net Message-id: <5.1.0.14.0.20020811095745.04040574@postoffice.pacbell.net> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 11 Aug 2002 09:57:51 -0700 From: Domenic Greco Subject: Re: ENSW interlocks, 2100C sn 078 X-Sender: dgreco@postoffice.pacbell.net To: Stephen Jordan , linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Steve, The play on the round disk is normal but there should be no movement of the round disk when programmed into position, especially 6x. If you do have movement (and we're talking mm's), and you're sure the air system is set-up correctly, then the energy switch is faulty. A confirmation of this would be that 6x is sometimes very slow to come up to dose rate (may be gantry angle dependent). Another question is what type of fault microswitches you have. The original roller type microswitches, which actuated off the top of the round disk, caused many false ENSW interlocks. But many years ago, varian put out a mod to replace roller type microswitches with lever actuated microswitches which activate from the side of the disk instead of the top. Regards, Domenic Greco Radiation Electronics, Inc. At 05:35 PM 8/8/2002 -0500, Stephen Jordan wrote: >We have had a intermittant problem with energy switch for a while now, >and we're at odds with Varian as to how to repair it: >The round disk on the energy switch that actuates the 6X or 15X >microswitches is loose; it disallows microswitch activation at certain >gantry angles. I have "adjusted" (READ: BENT, SHIMMED, TWEAKED) the >bracket for about a year, because the Varian service rep stated we need >a new energy switch. After much scrutiny of the energy switch >mechanical design, I believe at some time in the past when replacing the >air solenoid, the assy was not reassembled properly, allowing a small (~ >.125") gap between the disk and the shaft that is ultimately the energy >switch. It appears that one could snug the assy up....has anyone done >this? If you were to snug the disk up, would that change the depth of >the energy switch? Sorry to be so wordy, but I really do not want to >take the guide to air on a 14 year old machine because of a microswitch >not being activated. (!) Thanks in advance ya'll! > >Steve Jordan >UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Aug 11 19:19:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17dwN6-0008Fa-00; Sun, 11 Aug 2002 19:19:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 40AF11112F9; Sun, 11 Aug 2002 19:10:44 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA09904 for linac-eng-list; Sun, 11 Aug 2002 11:57:16 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta6.snfc21.pbi.net (mta6.snfc21.pbi.net [206.13.28.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09900 for ; Sun, 11 Aug 2002 11:57:14 -0500 (CDT) Received: from REI-DGPC1.pacbell.net ([216.103.85.50]) by mta6.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0H0O00442V3DKD@mta6.snfc21.pbi.net> for linac-eng@plato.aristotle.net; Sun, 11 Aug 2002 09:57:13 -0700 (PDT) Date: Sun, 11 Aug 2002 09:57:15 -0700 From: Domenic Greco Subject: Re: ENSW interlocks, 2100C sn 078 In-reply-to: X-Sender: dgreco@postoffice.pacbell.net To: Stephen Jordan , linac-eng@plato.aristotle.net Message-id: <5.1.0.14.0.20020811092745.01095ab8@postoffice.pacbell.net> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 11 Aug 2002 09:57:15 -0700 From: Domenic Greco Subject: Re: ENSW interlocks, 2100C sn 078 In-reply-to: X-Sender: dgreco@postoffice.pacbell.net To: Stephen Jordan , linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Steve, The play on the round disk is normal but there should be no movement of the round disk when programmed into position, especially 6x. If you do have movement (and we're talking mm's), and you're sure the air system is set-up correctly, then the energy switch is faulty. A confirmation of this would be that 6x is sometimes very slow to come up to dose rate (may be gantry angle dependent). Another question is what type of fault microswitches you have. The original roller type microswitches, which actuated off the top of the round disk, caused many false ENSW interlocks. But many years ago, varian put out a mod to replace roller type microswitches with lever actuated microswitches which activate from the side of the disk instead of the top. Regards, Domenic Greco Radiation Electronics, Inc. At 05:35 PM 8/8/2002 -0500, Stephen Jordan wrote: >We have had a intermittant problem with energy switch for a while now, >and we're at odds with Varian as to how to repair it: >The round disk on the energy switch that actuates the 6X or 15X >microswitches is loose; it disallows microswitch activation at certain >gantry angles. I have "adjusted" (READ: BENT, SHIMMED, TWEAKED) the >bracket for about a year, because the Varian service rep stated we need >a new energy switch. After much scrutiny of the energy switch >mechanical design, I believe at some time in the past when replacing the >air solenoid, the assy was not reassembled properly, allowing a small (~ >.125") gap between the disk and the shaft that is ultimately the energy >switch. It appears that one could snug the assy up....has anyone done >this? If you were to snug the disk up, would that change the depth of >the energy switch? Sorry to be so wordy, but I really do not want to >take the guide to air on a 14 year old machine because of a microswitch >not being activated. (!) Thanks in advance ya'll! > >Steve Jordan >UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 00:23:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17eNaX-0007RS-00; Tue, 13 Aug 2002 00:23:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F13A71112F4; Tue, 13 Aug 2002 00:14:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA03377 for linac-eng-list; Mon, 12 Aug 2002 16:42:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA03373 for ; Mon, 12 Aug 2002 16:42:01 -0500 (CDT) Received: by xchange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 12 Aug 2002 14:42:01 -0700 Message-ID: From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: IC's for Mevatron Date: Mon, 12 Aug 2002 14:42:00 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: IC's for Mevatron Date: Mon, 12 Aug 2002 14:42:00 -0700 Sender: owner-linac-eng@plato.aristotle.net Hi All, Does anybody out there in linac land have a source for the NEC uPD71055 IC's that are used to replace the Intel chips on the function controllers? Thanks in advance, Dan Watters University Medical Center Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 10:31:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17eX56-0000ix-00; Tue, 13 Aug 2002 10:31:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB97D1112F2; Tue, 13 Aug 2002 10:22:04 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id DAA09971 for linac-eng-list; Tue, 13 Aug 2002 03:01:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhost.ks.se (gate2.ks.se [193.10.63.101]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA09967 for ; Tue, 13 Aug 2002 03:01:26 -0500 (CDT) Received: from ks.se ([136.155.36.170]) by mailhost.ks.se (Sun Internet Mail Server sims.4.0.2001.07.26.11.50.p9) with ESMTP id <0H0R0085AVJ7AW@mailhost.ks.se> for linac-eng@plato.aristotle.net; Tue, 13 Aug 2002 09:59:32 +0200 (MET DST) Date: Tue, 13 Aug 2002 10:01:16 +0200 From: Walter Wyrsch Subject: Problem solved with SL75/5 Communication To: linac-eng@plato.aristotle.net Message-id: <3D58BCCC.5070302@ks.se> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed X-Accept-Language: en-us, sv User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id DAA09968 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 13 Aug 2002 10:01:16 +0200 From: Walter Wyrsch Subject: Problem solved with SL75/5 Communication To: linac-eng@plato.aristotle.net X-Accept-Language: en-us, sv X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id DAA09968 Sender: owner-linac-eng@plato.aristotle.net Hej thanks for all suggestions from all of you all over the world. We solved the problem but are not 100 % sure if it was only one problem, or a combination ,because we found a lot of small wire wrap crap on the back of the cardrack. Some of them made definitly shorts once a while!!!! The main problem was for sure the memoryboard. We changed it swapped the EPROM´s and the communication worked again. Just for a test we changed to the old board again and the communication was lost again but we never got back the strange characters I described !! Thats why we think there were som other bugs involved. regards Walter 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 10:52:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17eXPr-0000zD-00; Tue, 13 Aug 2002 10:52:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6CCBD1112F2; Tue, 13 Aug 2002 10:43:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA10993 for linac-eng-list; Tue, 13 Aug 2002 03:29:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhost.ks.se (gate2.ks.se [193.10.63.101]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA10989 for ; Tue, 13 Aug 2002 03:29:34 -0500 (CDT) Received: from ks.se ([136.155.36.170]) by mailhost.ks.se (Sun Internet Mail Server sims.4.0.2001.07.26.11.50.p9) with ESMTP id <0H0R00A7EWUBYZ@mailhost.ks.se> for linac-eng@plato.aristotle.net; Tue, 13 Aug 2002 10:27:47 +0200 (MET DST) Date: Tue, 13 Aug 2002 10:29:32 +0200 From: Walter Wyrsch Subject: SL75/5 dosimetry problem To: linac-eng@plato.aristotle.net Message-id: <3D58C36C.40503@ks.se> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed X-Accept-Language: en-us, sv User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id DAA10990 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 13 Aug 2002 10:29:32 +0200 From: Walter Wyrsch Subject: SL75/5 dosimetry problem To: linac-eng@plato.aristotle.net X-Accept-Language: en-us, sv X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id DAA10990 Sender: owner-linac-eng@plato.aristotle.net Hej , a week ago I discribed a communication problem on our SL75/5 serial# 3088. She is working again but we still have our main problem left. A dosimetry problem: Dosimetry shows only about 20 MU/MIN no change from PRF1 , PRF2 or PRF3 mode. Both channels show the same low values. -we checked the output with an external electrometer and the beamsymmetry and flatness with the Schuster BMS and everything looks fine. -we checked the 300V -we swapped the dosimetry and doslogic PCB´s (no change) -we changed to another Ionchamber (the one who was in before the beamsteering update we will get an new one today) -we started with some measurements on the dosimetry PCB .The PRF is changing if we look at the input signals fron the ionchamber ( TP1: sawtoothsignal amplitude about 1,2V) We go on with more measurements but it is difficult to know what the signal should look like. Are also in contact with the Elekta Helpdesk in Crawley but hope again for help from the linac engineer community. thanks Walter and Magne 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 15:22:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ebcn-0003X3-00; Tue, 13 Aug 2002 15:22:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 86B3F1112F2; Tue, 13 Aug 2002 15:13:02 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA13512 for linac-eng-list; Tue, 13 Aug 2002 07:49:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq06.netvigator.com (imsmq06.netvigator.com [208.167.231.42]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA13508 for ; Tue, 13 Aug 2002 07:49:30 -0500 (CDT) Received: (qmail 2221 invoked from network); 13 Aug 2002 12:49:12 -0000 Received: from pcd628234.netvigator.com (HELO kyeung) (218.102.160.234) by imsmq06.netvigator.com with SMTP; 13 Aug 2002 12:49:12 -0000 Message-ID: <000401c242c7$09dd0500$7679fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varina portavision artifact Date: Tue, 13 Aug 2002 20:40:26 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01C24309.A79C4C00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varina portavision artifact Date: Tue, 13 Aug 2002 20:40:26 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0019_01C24309.A79C4C00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian Portal Vison V6.1 (ion-chamber) We find one white horizontal line across the portal images. The white = line appears at y=3D152 and can be seen clearly in the dark field. Could anyone advise the causes of the white line?=20 Any methods to cure the problem other than changing the HV board? Thanks in advance. Kim Yeung ------=_NextPart_000_0019_01C24309.A79C4C00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
              &nbs= p;   =20 Varian Portal Vison V6.1 (ion-chamber)
     
    We find one white horizontal line = across the=20 portal images. The white line appears at y=3D152 and can be seen clearly = in the=20 dark field.
     
    Could anyone advise the causes of the = white line?=20
     
    Any methods to cure the problem other = than changing=20 the HV board?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0019_01C24309.A79C4C00-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 16:31:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17echf-00044y-00; Tue, 13 Aug 2002 16:31:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ADC951112F2; Tue, 13 Aug 2002 16:22:10 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA14844 for linac-eng-list; Tue, 13 Aug 2002 09:04:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA14840 for ; Tue, 13 Aug 2002 09:03:59 -0500 (CDT) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Tue, 13 Aug 2002 11:00:17 -0300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 13 Aug 2002 11:00:14 -0300 From: "Scott Purcell" To: Subject: Danbury Engineering Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA14841 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 13 Aug 2002 11:00:14 -0300 From: "Scott Purcell" To: Subject: Danbury Engineering Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA14841 Sender: owner-linac-eng@plato.aristotle.net Hi to all, FYI Danbury Engineering has been bought by Gulmay Medical Inc. They are still providing MLC motors for the Mark II style of MLC. The contact is Peter Hepburn (peterhepburngmi@aol.com) and the phone number is 877-797-9181. Regards Scott Purcell Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada Email scott.purcell@cdha.nshealth.ca Phone: 902-473-2563 Fax: 902-473-6120 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 17:21:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17edTr-0004OU-00; Tue, 13 Aug 2002 17:21:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7B7C91112F3; Tue, 13 Aug 2002 17:11:58 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA15646 for linac-eng-list; Tue, 13 Aug 2002 09:48:17 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA15641 for ; Tue, 13 Aug 2002 09:48:16 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 13 Aug 2002 08:50:46 -0600 Received: (from RPC035 [172.24.49.35]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002081308483911737 ; Tue, 13 Aug 2002 08:48:39 -0600 From: scot thiesson To: "'linac-eng@plato.aristotle.net'" , "Watters, Dan" Date: Tue, 13 Aug 2002 08:48:12 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: Subject: Re: IC's for Mevatron MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "'linac-eng@plato.aristotle.net'" , "Watters, Dan" Date: Tue, 13 Aug 2002 08:48:12 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: IC's for Mevatron Sender: owner-linac-eng@plato.aristotle.net Hi Dan, Try: A.M.S. ALLTRONICS INC 905-825-3222 1150 DORVAL DR. SUITE 408 OAKVILLE ONT L6M3E8 I've had some luck with them in the past. Scot. 8/12/2002 3:42:00 PM, "Watters, Dan" wrote: >Hi All, > >Does anybody out there in linac land have a source for the NEC uPD71055 IC's >that are used to replace the Intel chips on the function controllers? > >Thanks in advance, > >Dan Watters >University Medical Center >Tucson, AZ. > >> CONFIDENTIALITY NOTICE >> This message and any included attachments are from University Medical >> Center Corp and are intended only for the addressee. The information >> contained in this message is confidential and may constitute inside or >> non-public information under international, federal, or state laws and is >> intended only for the use of the addressee. Unauthorized forwarding, >> copying, printing, distributing, or using such information is strictly >> prohibited and may be unlawful. If you are not the addressee, please >> promptly delete this message and notify the sender of the delivery error >> by e-mail or you may call University Medical Center in Tucson, Arizona, >> USA at (+1) (520) 694-6417. >> >> > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 17:44:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17edq8-0004Uk-00; Tue, 13 Aug 2002 17:44:12 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 12D621112F7; Tue, 13 Aug 2002 17:34:58 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA16171 for linac-eng-list; Tue, 13 Aug 2002 10:10:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq10.netvigator.com (imsmq10.netvigator.com [208.167.231.123]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA16163 for ; Tue, 13 Aug 2002 10:10:02 -0500 (CDT) Received: (qmail 10801 invoked from network); 13 Aug 2002 15:09:27 -0000 Received: from pcd420152.netvigator.com (HELO kyeung) (203.218.210.152) by imsmq10.netvigator.com with SMTP; 13 Aug 2002 15:09:27 -0000 Message-ID: <002d01c242da$a148c600$53b9fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varian Portal Vision Date: Tue, 13 Aug 2002 23:03:44 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002A_01C2431D.AC4F83C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varian Portal Vision Date: Tue, 13 Aug 2002 23:03:44 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_002A_01C2431D.AC4F83C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian PortalVision V6.1 (ion-chamber) Could anyone advise where I can change the dark field and flood field = settings? Best regards, Kim Yeung ------=_NextPart_000_002A_01C2431D.AC4F83C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
    Varian PortalVision V6.1 = (ion-chamber)
     
    Could anyone advise where I can change = the dark=20 field and flood field settings?
     
    Best regards,
     
    Kim Yeung
    ------=_NextPart_000_002A_01C2431D.AC4F83C0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 13 18:52:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17eeuS-0004cC-00; Tue, 13 Aug 2002 18:52:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B357D1112F2; Tue, 13 Aug 2002 18:43:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA17935 for linac-eng-list; Tue, 13 Aug 2002 11:24:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA17931 for ; Tue, 13 Aug 2002 11:24:07 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g7DGNvrF367016; Tue, 13 Aug 2002 12:23:57 -0400 Message-ID: <3D59318E.5060103@hsc.vcu.edu> Date: Tue, 13 Aug 2002 12:19:26 -0400 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.0) Gecko/20020530 X-Accept-Language: en-us, en MIME-Version: 1.0 To: kim yeung Cc: linac-eng Subject: Re: Varian Portal Vision References: <002d01c242da$a148c600$53b9fea9@kyeung> Content-Type: multipart/alternative; boundary="------------010108090901060709080904" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 13 Aug 2002 12:19:26 -0400 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: kim yeung Cc: linac-eng Subject: Re: Varian Portal Vision Sender: owner-linac-eng@plato.aristotle.net --------------010108090901060709080904 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit kim yeung wrote: > Hi Colleagues, > > Varian PortalVision V6.1 (ion-chamber) > > Could anyone advise where I can change the dark field and flood field > settings? > > Best regards, > > Kim Yeung did you try to go into IaS2 monitor and run auto setup for those fields. In that screen you can also manually lower your High Voltage. Chris Bartee --------------010108090901060709080904 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit kim yeung wrote:
    Hi Colleagues,
     
    Varian PortalVision V6.1 (ion-chamber)
     
    Could anyone advise where I can change the dark field and flood field settings?
     
    Best regards,
     
    Kim Yeung
    did you try to go into IaS2 monitor and run auto setup for those fields. In that screen you can also manually lower your High Voltage.

    Chris Bartee

    --------------010108090901060709080904-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 14 12:53:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17evm7-0000Sj-00; Wed, 14 Aug 2002 12:53:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F3B321112F2; Wed, 14 Aug 2002 12:43:46 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id FAA05654 for linac-eng-list; Wed, 14 Aug 2002 05:18:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id FAA05650 for ; Wed, 14 Aug 2002 05:18:28 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g7EAHw0i026335 for ; Wed, 14 Aug 2002 05:17:58 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g7EAHwXu026332 for ; Wed, 14 Aug 2002 05:17:58 -0500 (CDT) Received: through eSafe SMTP Relay 1028637221; Wed Aug 14 05:17:58 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 14 Aug 2002 05:17:57 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5F53@wmhmail.phci.org> From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: FYI VARIAN 120 MLC Date: Wed, 14 Aug 2002 05:17:55 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2437B.DB221EC0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: linac-eng@plato.aristotle.net Subject: FYI VARIAN 120 MLC Date: Wed, 14 Aug 2002 05:17:55 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2437B.DB221EC0 Content-Type: text/plain Hi to all, I thought I would let you all know about a possible problem you might run into with the Varian 120 MLCs. Some of you might not know this but Varian ships two type of power supplies when you order one from them. You might receive the ESA type which is the original style or you could receive the Mission supply which is a slightly larger supply with a bigger fan in it. The Mission type could cause you to have intermittent problems. I have notice a problem with the -15 and +15 part of the supply that could create cases that would cause you to replace boards and the real problem is with the supply. The dropping out of the -15 and +15 volts is so quick that you might think that by changing a comm board or motor board in the head that the problem is fixed. This may not be so the only true way to tell is to substitute the supply. Also I have had some success with repairing the head comm boards, so I am looking for boards to possibly add to my inventory, if anyone has any please give me a call and we can talk. Thanks for your time. Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 ------_=_NextPart_001_01C2437B.DB221EC0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable FYI VARIAN 120 MLC

    Hi to all, 


    I thought I would let you all know about= a possible problem you might run into with the Varian 120 MLCs. Some of = you might not know this but Varian ships two type of power supplies when = you order one from them. You might receive the ESA type which is the orig= inal style or you could receive the Mission supply which is a slightly la= rger supply with a bigger fan in it. The Mission type could cause you to = have intermittent problems. I have notice a problem with the -15 and +15 = part of the supply that could create cases that would cause you to replac= e boards and the real problem is with the supply. The dropping out of the= -15 and +15 volts is so quick that you might think that by changing a co= mm board or motor board in the head that t he problem is fixed. This may not be so the only true way to tell is to s= ubstitute the supply. Also I have had some success with repairing the hea= d comm boards, so I am looking for boards to possibly add to my inventory= , if anyone has any please give me a call and we can talk.

    Thanks for your time.


    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



    ------_=_NextPart_001_01C2437B.DB221EC0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 15 14:27:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17fJil-0007kH-00; Thu, 15 Aug 2002 14:27:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 113BF1112F1; Thu, 15 Aug 2002 14:17:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA25982 for linac-eng-list; Thu, 15 Aug 2002 06:45:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA25978 for ; Thu, 15 Aug 2002 06:45:27 -0500 (CDT) Received: from jyorke ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Thu, 15 Aug 2002 08:48:05 -0300 From: "Greg MacKinnon" To: "LinacEng" Subject: Ximatron CX "AEC Device Err" Date: Thu, 15 Aug 2002 08:42:27 -0300 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Greg MacKinnon" To: "LinacEng" Subject: Ximatron CX "AEC Device Err" Date: Thu, 15 Aug 2002 08:42:27 -0300 X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Hi Group On my unit when treating in AEC mode the message is dispalyed after every exposer "AEC Device Err". Any ideas of were fault could be. I have not worked on this unit before so any help would be great. Unit sn 790. Thanks to all ahead of time. Greg __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8000 x2163 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 15 15:06:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17fKKj-00082c-00; Thu, 15 Aug 2002 15:06:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2845A1112F1; Thu, 15 Aug 2002 14:56:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA26889 for linac-eng-list; Thu, 15 Aug 2002 07:41:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq11.netvigator.com (imsmq11.netvigator.com [208.167.231.124]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA26885 for ; Thu, 15 Aug 2002 07:41:25 -0500 (CDT) Received: (qmail 7282 invoked from network); 15 Aug 2002 12:41:08 -0000 Received: from pcd439082.netvigator.com (HELO kyeung) (203.218.229.82) by imsmq11.netvigator.com with SMTP; 15 Aug 2002 12:41:08 -0000 Message-ID: <002001c24458$3c9984e0$cd37fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varian MLC secondary position interlock Date: Thu, 15 Aug 2002 20:35:28 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01C2449B.4A920B60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varian MLC secondary position interlock Date: Thu, 15 Aug 2002 20:35:28 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C2449B.4A920B60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian Mark-series MLC Version 6.1 We have frequent secondary position interlocks and the secondary shows = one leaf is zero.=20 Could anyone advise under what conditions the secondary will show zero? Best regards, Kim Yeung ------=_NextPart_000_001D_01C2449B.4A920B60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
           =20     Varian Mark-series MLC Version 6.1
     
    We have frequent secondary position = interlocks and=20 the secondary shows one leaf is zero.
     
    Could anyone advise under what = conditions the=20 secondary will show zero?
     
    Best regards,
     
    Kim Yeung
    ------=_NextPart_000_001D_01C2449B.4A920B60-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 20 18:26:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hBpk-00086Z-00; Tue, 20 Aug 2002 18:26:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5C5081112F2; Tue, 20 Aug 2002 18:14:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA12089 for linac-eng-list; Tue, 20 Aug 2002 10:03:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA12082 for ; Tue, 20 Aug 2002 10:03:24 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Tue, 20 Aug 2002 11:02:48 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFF5@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Walter Wyrsch'" , linac-eng@plato.aristotle.net Subject: RE: SL75/5 dosimetry problem Date: Tue, 20 Aug 2002 11:02:44 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA12083 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Walter Wyrsch'" , linac-eng@plato.aristotle.net Subject: RE: SL75/5 dosimetry problem Date: Tue, 20 Aug 2002 11:02:44 -0400 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA12083 Sender: owner-linac-eng@plato.aristotle.net Reminds me of saturation problems with many types of radiation detectors, probably not the case with your ion chamber if the 300v is getting to the plates. But maybe an op amp or analog switch is saturating? I assume the dose rates measured on the table are normal, with correct ratio between 300 and 150. good luck -----Original Message----- From: Walter Wyrsch [mailto:walter.wyrsch@ks.se] Sent: Tuesday, August 13, 2002 4:30 AM To: linac-eng@plato.aristotle.net Subject: SL75/5 dosimetry problem Hej , a week ago I discribed a communication problem on our SL75/5 serial# 3088. She is working again but we still have our main problem left. A dosimetry problem: Dosimetry shows only about 20 MU/MIN no change from PRF1 , PRF2 or PRF3 mode. Both channels show the same low values. -we checked the output with an external electrometer and the beamsymmetry and flatness with the Schuster BMS and everything looks fine. -we checked the 300V -we swapped the dosimetry and doslogic PCB´s (no change) -we changed to another Ionchamber (the one who was in before the beamsteering update we will get an new one today) -we started with some measurements on the dosimetry PCB .The PRF is changing if we look at the input signals fron the ionchamber ( TP1: sawtoothsignal amplitude about 1,2V) We go on with more measurements but it is difficult to know what the signal should look like. Are also in contact with the Elekta Helpdesk in Crawley but hope again for help from the linac engineer community. thanks Walter and Magne 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 20 18:32:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hBvN-00086k-00; Tue, 20 Aug 2002 18:32:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C1CBF1112F5; Tue, 20 Aug 2002 18:20:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA12361 for linac-eng-list; Tue, 20 Aug 2002 10:18:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from whses01.wellmont.org (whses01.wellmont.org [151.102.96.168]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA12357 for ; Tue, 20 Aug 2002 10:18:19 -0500 (CDT) Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Tue, 20 Aug 2002 11:17:28 -0400 Message-ID: <7AF61AA0D5DBD511B2990090274E7316796967@whses02.wellmont.org> From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: MX-75 PCB Date: Tue, 20 Aug 2002 11:17:27 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: MX-75 PCB Date: Tue, 20 Aug 2002 11:17:27 -0400 Sender: owner-linac-eng@plato.aristotle.net Fellow Engineers, During some recent house cleaning at one of our sites I came across a I/O PCB (VMS P/N 00-868310-01) for an MX-75 X-ray generator manufactured by Fisher Imaging. We replaced our MX-75 on our Ximatron CX simulator with a CPI Generator about 9 months ago. This PCB was ordered new from Varian for a problem prior to the generator replacement but the PCB was not required for repair. The PCB was hotchecked and worked fine. Presently, Varian cost for a new PCB is $9616.15. If anybody out there is interested in this I/O PCB reply to my e-mail address individually with your contact information and I will provide details. Marc 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 21 02:58:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hJox-0000L3-00; Wed, 21 Aug 2002 02:58:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B6C361112F2; Wed, 21 Aug 2002 02:46:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA23878 for linac-eng-list; Tue, 20 Aug 2002 19:26:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from franklin.nt.tas.gov.au (franklin-ext.nt.tas.gov.au [202.7.15.61]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA23874 for ; Tue, 20 Aug 2002 19:25:54 -0500 (CDT) Received: from franklin.nt.tas.gov.au (localhost [127.0.0.1]) by franklin.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g7L0Ph516440 for ; Wed, 21 Aug 2002 10:25:43 +1000 (EST) Received: from dchs6305.dchs.tas.gov.au ([147.109.23.26]) by franklin.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g7L0NHr15823 for ; Wed, 21 Aug 2002 10:23:17 +1000 (EST) Received: by DCHS6305 with Internet Mail Service (5.5.2653.19) id ; Wed, 21 Aug 2002 10:23:17 +1000 Message-ID: From: Causby Damian To: "'linac-eng@plato.aristotle.net'" Subject: 120 leaf MLC Date: Wed, 21 Aug 2002 10:23:16 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Causby Damian To: "'linac-eng@plato.aristotle.net'" Subject: 120 leaf MLC Date: Wed, 21 Aug 2002 10:23:16 +1000 Sender: owner-linac-eng@plato.aristotle.net Hi all Has anyone had trouble getting there MLC calibration tight enough for IMRT use if so have they adjusted MLCXCAL.TXT. our Mlc is giving field sizes more then 2mm larger then our fixed jaws. any coments apreciated. Damian Causby Engineering Operations Manager Department of Radiation Oncology Launceston General Hospital Tel 03 6348 7151 Fax 03 6331 6371 damian.causby@dhhs.tas.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 21 15:10:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hVFm-0004qj-00; Wed, 21 Aug 2002 15:10:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EE67E1112F5; Wed, 21 Aug 2002 14:58:39 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA01529 for linac-eng-list; Wed, 21 Aug 2002 07:15:23 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA01525 for ; Wed, 21 Aug 2002 07:15:21 -0500 (CDT) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id HAA17524; Wed, 21 Aug 2002 07:11:26 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C1C.0042B9F9 ; Wed, 21 Aug 2002 07:08:49 -0500 X-Lotus-FromDomain: MDACC To: Causby Damian Cc: "'linac-eng@plato.aristotle.net'" Message-ID: <86256C1C.0042B91D.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 20 Aug 2002 20:27:00 -0500 Subject: Re: 120 leaf MLC Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Causby Damian Cc: "'linac-eng@plato.aristotle.net'" Date: Tue, 20 Aug 2002 20:27:00 -0500 Subject: Re: 120 leaf MLC Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Damian, MLCXCAL.TXT is a file you can use to get your MLC calibrated properly. You and your favorite physicist can get together along with Chapter 4 of theMLC Systems and Maintenance Guide and calibrate the jaws of your MLC to spec. Although MLCs are made pretty tight to tolerances, the MLCXCAL.TXT can allow for minor variances. This is also covered on the MLC course, well worth the trip. The file you don't touch is the MLCTABLE.TXT. I repeat Do not touch the MLCTABLE.TXT file. Hope this helps. Ed Rymes Accelerator Tech III M.D. Anderson Cancer Center Houston, Texas Causby Damian on 08/20/2002 07:23:16 PM To: "'linac-eng@plato.aristotle.net'" cc: (bcc: Edward Rymes/MDACC) Subject: 120 leaf MLC Hi all Has anyone had trouble getting there MLC calibration tight enough for IMRT use if so have they adjusted MLCXCAL.TXT. our Mlc is giving field sizes more then 2mm larger then our fixed jaws. any coments apreciated. Damian Causby Engineering Operations Manager Department of Radiation Oncology Launceston General Hospital Tel 03 6348 7151 Fax 03 6331 6371 damian.causby@dhhs.tas.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 21 16:16:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hWHg-0005FC-00; Wed, 21 Aug 2002 16:16:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 229A31112F2; Wed, 21 Aug 2002 16:04:41 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA02870 for linac-eng-list; Wed, 21 Aug 2002 08:34:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailserver.xrt.upenn.edu (email.xrt.upenn.edu [165.123.248.180]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA02866 for ; Wed, 21 Aug 2002 08:34:13 -0500 (CDT) Received: by email.xrt.upenn.edu with Internet Mail Service (5.5.2650.21) id ; Wed, 21 Aug 2002 09:45:13 -0400 Message-ID: From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100c for sale Date: Wed, 21 Aug 2002 09:45:12 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C24918.F8EFE7F0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kreider, Rick" To: "'Linac-eng'" Subject: 2100c for sale Date: Wed, 21 Aug 2002 09:45:12 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C24918.F8EFE7F0 Content-Type: text/plain; charset="iso-8859-1" The Hospital of the University of Pennsylvania department of Radiation Oncology will be taking bids on a Varian 2100c. Interested parties need to keep in mind that the awarded party will be responsible for removal and shipment of equipment agreed on by the University of Pennsylvania and the awarded party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian. This accelerator is used for daily clinical treatment and has been upgraded with many features. Installed in 1988 and fully operational since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories along with an ETR couch and independent jaws with enhanced dynamic wedge capability. Estimated removal time will be around December This accelerator has been setup with the following energies 6x 15x 6e 9e 12e 16e 20e Interested parties with questions or would like to setup a time to see the equipment can contact: Rick Kreider Chief of Engineering Hospital of the University of Pennsylvania Department of Radiation Oncology Kreider@xrt.upenn.edu Tel: 215-662-6815 Fax: 215-662-6762 ------_=_NextPart_001_01C24918.F8EFE7F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The University of Pennsylvania Hospital department of Radiation = Oncology will be taking bids on a Varian 2100c

    The Hospital of the University of Pennsylvania department of = Radiation Oncology will be taking bids on a Varian 2100c. Interested parties need = to keep in mind that the awarded party will be responsible for removal and = shipment of equipment agreed on by the University of Pennsylvania and the awarded = party. Scheduled removal dates will be at the discretion of the University of Pennsylvanian.

     

    This accelerator is used for daily clinical treatment and has = been upgraded with many features. Installed in 1988 and fully operational = since. Equipped with a Mark 0 MLC (52 Leaf) and using type III accessories = along with an ETR couch and independent jaws with enhanced dynamic wedge = capability.

     

    Estimated removal time will be around = December

     

    This accelerator has been setup with the following = energies

    6x  15x  6e  9e  = 12e  16e  20e

     

    Interested parties with questions or would like to setup a time = to see the equipment

    can contact:

     

    Rick Kreider

    Chief of Engineering

    Hospital of the University of Pennsylvania

    Department of Radiation Oncology

    Kreider@xrt.upenn.edu

    Tel: 215-662-6815

    Fax: 215-662-6762

      =

    ------_=_NextPart_001_01C24918.F8EFE7F0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 22 00:56:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17heOy-0006Pg-00; Thu, 22 Aug 2002 00:56:36 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0B37D1112F2; Thu, 22 Aug 2002 00:44:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA14985 for linac-eng-list; Wed, 21 Aug 2002 17:18:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from burnia.dmz.health.nsw.gov.au (burnia.dmz.health.nsw.gov.au [203.5.110.252]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id RAA14973 for ; Wed, 21 Aug 2002 17:18:44 -0500 (CDT) Received: by burnia.dmz.health.nsw.gov.au; (5.65v4.0/1.3/10May95) id AB31832; Thu, 22 Aug 2002 08:18:02 +1000 Received: from mxscan ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.0-24 #44005) with SMTP id <01KLLB7DBQ64002SHT@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Thu, 22 Aug 2002 08:17:57 -0500 (EST) Received: from DOH_HUB-Message_Server by doh.health.nsw.gov.au with Novell_GroupWise; Thu, 22 Aug 2002 08:15:12 +1000 Date: Thu, 22 Aug 2002 08:18:17 +1000 From: Electronics Mater Subject: Re: 120 leaf MLC To: damian.causby@dhhs.tas.gov.au, linac-eng@plato.aristotle.net Message-Id: Mime-Version: 1.0 X-Mailer: Novell GroupWise 5.5.2 Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-8ec16256-068e-4797-8fa2-38e6c31dee8a" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 22 Aug 2002 08:18:17 +1000 From: Electronics Mater Subject: Re: 120 leaf MLC To: damian.causby@dhhs.tas.gov.au, linac-eng@plato.aristotle.net Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPartTM-000-8ec16256-068e-4797-8fa2-38e6c31dee8a Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Damian, There is a published varian CTB No:CTB-ML-216A available from their web = site on the issue of light field vs xray calibration for MMLC. Hope this helps. Dennis Pomare' Newcastle Mater Hospital NSW Australia. >>> Causby Damian 21/08/02 10:23:16 am >>> Hi all Has anyone had trouble getting there MLC calibration tight enough for IMRT use if so have they adjusted MLCXCAL.TXT. our Mlc is giving field sizes more then 2mm larger then our fixed jaws. any coments apreciated. Damian Causby Engineering Operations Manager Department of Radiation Oncology Launceston General Hospital Tel 03 6348 7151 Fax 03 6331 6371 damian.causby@dhhs.tas.gov.au=20 ------=_NextPartTM-000-8ec16256-068e-4797-8fa2-38e6c31dee8a Content-Type: text/plain; name="InterScan_Disclaimer.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="InterScan_Disclaimer.txt" This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health. ------=_NextPartTM-000-8ec16256-068e-4797-8fa2-38e6c31dee8a-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 22 02:41:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hg26-0006Tg-00; Thu, 22 Aug 2002 02:41:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A91471112F2; Thu, 22 Aug 2002 02:29:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA17129 for linac-eng-list; Wed, 21 Aug 2002 19:08:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from franklin.nt.tas.gov.au (franklin-ext.nt.tas.gov.au [202.7.15.61]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA17125 for ; Wed, 21 Aug 2002 19:08:26 -0500 (CDT) Received: from franklin.nt.tas.gov.au (localhost [127.0.0.1]) by franklin.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g7M08Kn23730 for ; Thu, 22 Aug 2002 10:08:20 +1000 (EST) Received: from dchs6305.dchs.tas.gov.au ([147.109.23.26]) by franklin.nt.tas.gov.au (8.11.5/8.11.5) with ESMTP id g7M08Db23675 for ; Thu, 22 Aug 2002 10:08:13 +1000 (EST) Received: by DCHS6305 with Internet Mail Service (5.5.2653.19) id ; Thu, 22 Aug 2002 10:08:12 +1000 Message-ID: From: Causby Damian To: "'linac-eng@plato.aristotle.net'" Subject: 120 Leaf MLC Date: Thu, 22 Aug 2002 10:08:11 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Causby Damian To: "'linac-eng@plato.aristotle.net'" Subject: 120 Leaf MLC Date: Thu, 22 Aug 2002 10:08:11 +1000 Sender: owner-linac-eng@plato.aristotle.net Hi all Thanks for the MLC comments, I have read all the mlc manuals service books/bulletins etc and Calibrated our MLC, I have our fixed jaws and light field adjusted precisely, but I need Our MLC to be with in Tolerance of 2mm when we scan our radiation fields and compare our MLC with our fixed jaws, regardless of light field. We have up to 2.5mm difference between our MLC and fixed jaws. This unit is 3 month old still under warranty, Varian are claiming that this is not unusual, but we don't see the problem with our old 120 Leaf MLC. My main question is does anyone else have over 2mm difference between there MLC and fixed jaws? All comments appreciated Damian Causby Engineering Operations Manager Department of Radiation Oncology Launceston General Hospital Tel 03 6348 7151 Fax 03 6331 6371 damian.causby@dhhs.tas.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 22 12:16:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hp0b-0001Nz-00; Thu, 22 Aug 2002 12:16:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 269491112F2; Thu, 22 Aug 2002 12:04:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA23118 for linac-eng-list; Thu, 22 Aug 2002 04:40:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA23114 for ; Thu, 22 Aug 2002 04:40:39 -0500 (CDT) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 17hoRi-0004F8-00; Thu, 22 Aug 2002 10:40:06 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D638C78000159EE for linac-eng@plato.aristotle.net; Thu, 22 Aug 2002 10:40:06 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-4 6.5.016) id 3D63887B0002CA31 for linac-eng@plato.aristotle.net; Thu, 22 Aug 2002 10:40:06 +0100 Received: from LTH-Message_Server by smtp.leedsth.nhs.uk with Novell_GroupWise; Thu, 22 Aug 2002 10:42:18 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Thu, 22 Aug 2002 10:41:56 +0100 From: "Chris Forrest" To: Subject: Varian HE Installation Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA23115 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 22 Aug 2002 10:41:56 +0100 From: "Chris Forrest" To: Subject: Varian HE Installation Content-Disposition: inline X-Guinevere: 1.1.14 ; Leeds Teaching Hospi X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA23115 Sender: owner-linac-eng@plato.aristotle.net Dear All, I looking to visit a site in the UK who are currently undergoing a Varian HE linac installation. Having already some experience with Elekta room build requirements I'd like someone's direct experience of the Varian room build and installation issues. So, if you're in the process of having your "baseframe grouted" and wouldn't mind a visit etc please drop me a line. I must apologise to the guys that replied last time I sent a similar posting but at the time , other commitments forced me to re-prioritise a visit to the bottom of the pile! - Babies have that kind of effect... ;-) Best Regards, Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 22 17:36:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hu0E-0004zk-00; Thu, 22 Aug 2002 17:36:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A248C1112F2; Thu, 22 Aug 2002 17:23:27 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA26703 for linac-eng-list; Thu, 22 Aug 2002 09:58:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA26699 for ; Thu, 22 Aug 2002 09:58:08 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.9) with SMTP id M2002082210533915107 for ; Thu, 22 Aug 2002 10:53:39 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Thu, 22 Aug 2002 10:58:07 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Thu, 22 Aug 2002 10:57:36 -0400 From: "Michael Nordin" To: Subject: Outb Vltn Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 22 Aug 2002 10:57:36 -0400 From: "Michael Nordin" To: Subject: Outb Vltn Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Hey, Varian MLC Mark 2 80 leaf circa 1998 Current Status Diasplay Taxi line indicates Outb Vltn=n. Please explain this parameter. I can find nothing in the books and my notes from class are lacking. I'm thinking Outbound violation is an errror in the controller command detected before being transmitted to the head indicating a problem with the MotComm pcb? Thanks, Mike Nordin 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 22 20:14:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hwTB-0005F1-00; Thu, 22 Aug 2002 20:14:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 30A441112F2; Thu, 22 Aug 2002 20:01:24 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA28975 for linac-eng-list; Thu, 22 Aug 2002 12:15:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA28971 for ; Thu, 22 Aug 2002 12:15:33 -0500 (CDT) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.9.3) with ESMTP id g7MHFlt03053; Thu, 22 Aug 2002 11:15:48 -0600 (MDT) Received: from cancerboard.ab.ca ([164.102.249.255]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g7MHF7N13884; Thu, 22 Aug 2002 11:15:07 -0600 (MDT) Message-ID: <3D651D31.CACEEC46@cancerboard.ab.ca> Date: Thu, 22 Aug 2002 11:19:46 -0600 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: Michael Nordin Cc: linac-eng@plato.aristotle.net Subject: Re: Outb Vltn References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 22 Aug 2002 11:19:46 -0600 From: Len Johnson X-Accept-Language: en To: Michael Nordin Cc: linac-eng@plato.aristotle.net Subject: Re: Outb Vltn Sender: owner-linac-eng@plato.aristotle.net Mike; There is a section in the MDIAG section of the Systems and Maintenance guide about CRC errors. Also in the Appendix C under Space (Display Current Status) there is a description of what 'n' represents. In the write up of the Head Transceiver there is a description of the VLTN data violation signal. I understand that the default is 255 before an interlock is generated. Happy reading. Len Michael Nordin wrote: > Hey, > Varian MLC Mark 2 80 leaf circa 1998 Current Status Diasplay Taxi > line indicates Outb Vltn=n. > > Please explain this parameter. I can find nothing in the books and my > notes from class are lacking. I'm thinking Outbound violation is an > errror in the controller command detected before being transmitted to > the head indicating a problem with the MotComm pcb? > > Thanks, > > Mike Nordin 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 22 23:12:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17hzGA-0005Qg-00; Thu, 22 Aug 2002 23:12:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E317E1112F2; Thu, 22 Aug 2002 23:00:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA02866 for linac-eng-list; Thu, 22 Aug 2002 15:04:42 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA02862 for ; Thu, 22 Aug 2002 15:04:40 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.9) with SMTP id M2002082215595712815 for ; Thu, 22 Aug 2002 15:59:57 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Thu, 22 Aug 2002 16:04:24 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Thu, 22 Aug 2002 16:03:59 -0400 From: "Michael Nordin" To: Subject: Outb Vltn Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 22 Aug 2002 16:03:59 -0400 From: "Michael Nordin" To: Subject: Outb Vltn Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Found the page. States errors are reported from head transciver with max errors of 255 then the interlock is asserted. I've seen mine as high as 1005 with no interlock asserted. Thanks Mike Nordin 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 23 02:35:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17i2QW-0005Zv-00; Fri, 23 Aug 2002 02:35:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2A25C1112F2; Fri, 23 Aug 2002 02:23:01 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA09893 for linac-eng-list; Thu, 22 Aug 2002 18:41:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r10.mx.aol.com (imo-r10.mx.aol.com [152.163.225.106]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA09889 for ; Thu, 22 Aug 2002 18:41:25 -0500 (CDT) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-r10.mx.aol.com (mail_out_v34.9.) id y.3a.2b719295 (4529) for ; Thu, 22 Aug 2002 19:40:41 -0400 (EDT) Message-ID: <3a.2b719295.2a96d079@aol.com> Date: Thu, 22 Aug 2002 19:40:41 EDT Subject: 2100C NEEDED To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10512 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Thu, 22 Aug 2002 19:40:41 EDT Subject: 2100C NEEDED To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Hello Everyone: I am in need of a 2100C, 6 & 10MV. Dual Independent Jaws, Type III Accessories, and MLC a big plus. Willing to pay top dollar for quality. Any suggestions would be appreciated. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 23 04:49:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17i4VU-0005fX-00; Fri, 23 Aug 2002 04:49:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BA8581112F2; Fri, 23 Aug 2002 04:36:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA11838 for linac-eng-list; Thu, 22 Aug 2002 21:14:36 -0500 (CDT) Received: from mta1-3.us4.outblaze.com (205-158-62-44.outblaze.com [205.158.62.44]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA11834 for ; Thu, 22 Aug 2002 21:14:33 -0500 (CDT) Received: from mta1-5.us4.outblaze.com (205-158-62-64.outblaze.com [205.158.62.64]) by mta1-3.us4.outblaze.com (8.12.3/8.12.3/us4-srs) with SMTP id g7N2Dx3G030455 for ; Fri, 23 Aug 2002 02:13:59 GMT Received: (qmail 30542 invoked by uid 0); 23 Aug 2002 01:01:21 -0000 MBOX-Line: From owner-linac-eng@plato.aristotle.net Thu Aug 22 15:41:25 2002 Received: (qmail 31477 invoked from network); 22 Aug 2002 15:41:15 -0000 Received: from unknown (HELO spf12.us4.outblaze.com) (205.158.62.36) by 205-158-62-64.outblaze.com with SMTP; 22 Aug 2002 15:41:15 -0000 Received: from spf6.us4.outblaze.com (205-158-62-33.outblaze.com [205.158.62.33]) by spf12.us4.outblaze.com (8.12.5/8.12.5/us4-yg) with ESMTP id g7MFfFET014191 for <"djf:iname.com"@iname.com.int>; Thu, 22 Aug 2002 15:41:15 GMT Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by spf6.us4.outblaze.com (8.11.6/8.11.6) with ESMTP id g7MFfDV77718; Thu, 22 Aug 2002 15:41:14 GMT Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA26703 for linac-eng-list; Thu, 22 Aug 2002 09:58:10 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA26699 for ; Thu, 22 Aug 2002 09:58:08 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.9) with SMTP id M2002082210533915107 for ; Thu, 22 Aug 2002 10:53:39 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Thu, 22 Aug 2002 10:58:07 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Thu, 22 Aug 2002 10:57:36 -0400 From: "Michael Nordin" To: Subject: Outb Vltn Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** MBOX-Line: From owner-linac-eng@plato.aristotle.net Thu Aug 22 15:41:25 2002 X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 22 Aug 2002 10:57:36 -0400 From: "Michael Nordin" To: Subject: Outb Vltn Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Hey, Varian MLC Mark 2 80 leaf circa 1998 Current Status Diasplay Taxi line indicates Outb Vltn=n. Please explain this parameter. I can find nothing in the books and my notes from class are lacking. I'm thinking Outbound violation is an errror in the controller command detected before being transmitted to the head indicating a problem with the MotComm pcb? Thanks, Mike Nordin 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 23 08:03:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17i7XR-0005z5-00; Fri, 23 Aug 2002 08:03:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 13D971112F2; Fri, 23 Aug 2002 07:50:26 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id AAA14218 for linac-eng-list; Fri, 23 Aug 2002 00:30:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp02.hutchcity.com ([202.45.84.105]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id AAA14214 for ; Fri, 23 Aug 2002 00:30:43 -0500 (CDT) Received: (qmail 77468 invoked from network); 23 Aug 2002 05:30:09 -0000 Received: from unknown (HELO webmail01.hutchcity.com) ([202.45.84.70]) (envelope-sender ) by localhost (qmail-ldap-1.03) with SMTP for ; 23 Aug 2002 05:30:09 -0000 Message-ID: <9827962.1030080510697.JavaMail.root@webmail01.hutchcity.com> Date: Fri, 23 Aug 2002 13:28:30 +0800 (HKT) From: Jonathan Chan To: "erymes@mail.mdanderson.org" , Causby Damian Subject: Re: 120 leaf MLC Cc: "'linac-eng@plato.aristotle.net'" Mime-Version: 1.0 Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 23 Aug 2002 13:28:30 +0800 (HKT) From: Jonathan Chan To: "erymes@mail.mdanderson.org" , Causby Damian Subject: Re: 120 leaf MLC Cc: "'linac-eng@plato.aristotle.net'" Sender: owner-linac-eng@plato.aristotle.net Not agreed. You have to adjust the MLCTABLE.TXT when then MLC shaped field size does not accurately reflect your planned field size (esp. when off-centred cases). Edit it with any ASCII editor (a backup of the original file is of course recommended, in case you screw up....), and re-launch the mlcw.exe program to check the effect after adjustment. Jonathan Chan QUEEN MARY HOSPITAL HONG KONG ----- Original Message ----- From: "erymes@mail.mdanderson.org" To: Causby Damian Cc: "'linac-eng@plato.aristotle.net'" Sent: Wednesday, August 21, 2002 09:27:00 +0800 Subject: Re: 120 leaf MLC Damian, MLCXCAL.TXT is a file you can use to get your MLC calibrated properly. You and your favorite physicist can get together along with Chapter 4 of theMLC Systems and Maintenance Guide and calibrate the jaws of your MLC to spec. Although MLCs are made pretty tight to tolerances, the MLCXCAL.TXT can allow for minor variances. This is also covered on the MLC course, well worth the trip. The file you don't touch is the MLCTABLE.TXT. I repeat Do not touch the MLCTABLE.TXT file. Hope this helps. Ed Rymes Accelerator Tech III M.D. Anderson Cancer Center Houston, Texas Causby Damian on 08/20/2002 07:23:16 PM To: "'linac-eng@plato.aristotle.net'" cc: (bcc: Edward Rymes/MDACC) Subject: 120 leaf MLC Hi all Has anyone had trouble getting there MLC calibration tight enough for IMRT use if so have they adjusted MLCXCAL.TXT. our Mlc is giving field sizes more then 2mm larger then our fixed jaws. any coments apreciated. Damian Causby Engineering Operations Manager Department of Radiation Oncology Launceston General Hospital Tel 03 6348 7151 Fax 03 6331 6371 damian.causby@dhhs.tas.gov.au Jonathan Chan Queen Mary Hospital 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 23 11:57:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17iBC7-000878-00; Fri, 23 Aug 2002 11:57:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 50BEA1112F2; Fri, 23 Aug 2002 11:45:02 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA16733 for linac-eng-list; Fri, 23 Aug 2002 04:21:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA16729 for ; Fri, 23 Aug 2002 04:21:45 -0500 (CDT) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 17iAcz-000509-00; Fri, 23 Aug 2002 10:21:13 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D638C7800032970 for linac-eng@plato.aristotle.net; Fri, 23 Aug 2002 10:21:13 +0100 Received: from sabari.essexrivers.nhs.uk (195.104.128.100) by relay.nhs.uk (Syntegra-4 6.5.016) id 3D63887B000668AF for linac-eng@plato.aristotle.net; Fri, 23 Aug 2002 10:21:13 +0100 Received: from thames.essexrivers.nhs.uk (unverified) by sabari.essexrivers.nhs.uk (Content Technologies SMTPRS 4.2.1) with ESMTP id for ; Fri, 23 Aug 2002 10:16:37 +0100 Received: by THAMES with Internet Mail Service (5.5.2650.21) id ; Fri, 23 Aug 2002 10:16:09 +0100 Message-ID: <1D2BB24BCAA2D311875200902798A0DE03778A43@THAMES> From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: M5125 Magnetrons Date: Fri, 23 Aug 2002 10:16:08 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Coley Chris (RDE) Essex Rivers" To: linac-eng@plato.aristotle.net Subject: M5125 Magnetrons Date: Fri, 23 Aug 2002 10:16:08 +0100 Sender: owner-linac-eng@plato.aristotle.net Hello All UK Hospitals Does anybody want 2 used M5125 magnetrons. One has 423 HT hours and the other has 604 HT hours. Both did work okay when removed form the machine. These are free to a good home but must collect or pay postage. If you are interested please email me at chris.coley@essexrivers.nhs.uk or phone on 01206 744637 Regards Chris Coley (Technician) Essex County Hospital (UK) ********************************************************************************** Essex Rivers Healthcare NHS Trust does not enter into contractual negotiations, contracts or any other form of legally binding agreement via e-mail. Therefore this message does not constitute any form of contractual offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or accept any legal responsibility for the contents of this message save where it is sent by one of it's employees in the course of his or her employment. This message is intended only for the individual or entity to which it is addressed and may contain information that is private and confidential. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication and it's attachment is strictly prohibited. If you have received this communication and it's attachments in error, please return the original message and attachments to us using the reply facility on e-mail. Essex Rivers Healthcare NHS Trust periodically and automatically monitors e-mails to ensure appropriate and lawful use is made of them. The contents of this message may therefore be subject to monitoring. This footnote also confirms that this email message has been swept by Sophos for the presence of computer viruses. ********************************************************************************** 1,, X-Coding-System: big5-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 23 14:22:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17iDSc-00015N-00; Fri, 23 Aug 2002 14:22:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 319581112F2; Fri, 23 Aug 2002 14:10:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA17995 for linac-eng-list; Fri, 23 Aug 2002 06:44:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA17991 for ; Fri, 23 Aug 2002 06:44:31 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g7NBiHrF376142; Fri, 23 Aug 2002 07:44:18 -0400 Message-ID: <3D661F0D.3060600@hsc.vcu.edu> Date: Fri, 23 Aug 2002 07:39:57 -0400 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.0) Gecko/20020530 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jonathan Chan Cc: "erymes@mail.mdanderson.org" , Causby Damian , "'linac-eng@plato.aristotle.net'" Subject: Re: 120 leaf MLC References: <9827962.1030080510697.JavaMail.root@webmail01.hutchcity.com> Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 23 Aug 2002 07:39:57 -0400 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: Jonathan Chan Cc: "erymes@mail.mdanderson.org" , Causby Damian , "'linac-eng@plato.aristotle.net'" Subject: Re: 120 leaf MLC Sender: owner-linac-eng@plato.aristotle.net You should be able to use the calibration wizard for these alignmetnts. Optical alignment of the emitters should be done first? One question, Are you doing Step and Shoot or sliding window imrts? If you are using sliding window , What tolerances do you have for leaf separation? Here at MCV we have been doing both kinds for years now. You should not have to get into the MLCtable.txt if this is a Mill MLC. The only time I've ever gone into the mlctable.txt is when I installed mark II. Once that is done everything else can be accomplished with mlcxcal.txt. Some of the confusion is over what kind of mlc do you have. Jonathan's comments are not for a Mill 120lf. Chris Bartee Any questions give me a call, Jonathan Chan wrote: >Not agreed. >You have to adjust the MLCTABLE.TXT when then MLC shaped field size does not accurately reflect your planned field size (esp. when off-centred cases). >Edit it with any ASCII editor (a backup of the original file is of course recommended, in case you screw up....), and re-launch the mlcw.exe program to check the effect after adjustment. >Jonathan Chan >QUEEN MARY HOSPITAL >HONG KONG > >----- Original Message ----- >From: "erymes@mail.mdanderson.org" >To: Causby Damian >Cc: "'linac-eng@plato.aristotle.net'" >Sent: Wednesday, August 21, 2002 09:27:00 +0800 >Subject: Re: 120 leaf MLC > > > >Damian, > MLCXCAL.TXT is a file you can use to get your MLC calibrated properly. You >and your favorite physicist can get together along with Chapter 4 of theMLC >Systems and Maintenance Guide and calibrate the jaws of your MLC to spec. >Although MLCs are made pretty tight to tolerances, the MLCXCAL.TXT can allow for >minor variances. This is also covered on the MLC course, well worth the trip. >The file you don't touch is the MLCTABLE.TXT. I repeat Do not touch the >MLCTABLE.TXT file. Hope this helps. > >Ed Rymes >Accelerator Tech III >M.D. Anderson Cancer Center >Houston, Texas > > > > > >Causby Damian on 08/20/2002 07:23:16 PM > >To: "'linac-eng@plato.aristotle.net'" >cc: (bcc: Edward Rymes/MDACC) > >Subject: 120 leaf MLC > > > >Hi all > Has anyone had trouble getting there MLC calibration tight enough >for IMRT use if so have they adjusted MLCXCAL.TXT. >our Mlc is giving field sizes more then 2mm larger then our fixed jaws. >any coments apreciated. > >Damian Causby >Engineering Operations Manager >Department of Radiation Oncology >Launceston General Hospital >Tel 03 6348 7151 >Fax 03 6331 6371 >damian.causby@dhhs.tas.gov.au > > > > > > > > > >Jonathan Chan >Queen Mary Hospital > > > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 23 18:02:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17iGtF-000368-00; Fri, 23 Aug 2002 18:02:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DB63E1112F2; Fri, 23 Aug 2002 17:49:50 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA21679 for linac-eng-list; Fri, 23 Aug 2002 10:02:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from msgia.hs.uab.edu (gw5.uabmc.edu [164.111.37.252]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA21675 for ; Fri, 23 Aug 2002 10:02:23 -0500 (CDT) Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Fri, 23 Aug 2002 10:01:43 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.1 Date: Fri, 23 Aug 2002 10:01:28 -0500 From: "Stephen Jordan" To: Subject: 21EX sn 1629 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA21676 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 23 Aug 2002 10:01:28 -0500 From: "Stephen Jordan" To: Subject: 21EX sn 1629 Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA21676 Sender: owner-linac-eng@plato.aristotle.net I'm researching a problem related to intermittant "TARG" and the occasional "EXQ2" interlocks, and realized there is no drawing of cable W29 (page 794 of the databook).....Does anyone have a pic of this cable in their databook? I'd really hate to tear the machine apart to determine the junctions of this cable are fine. Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 23 19:50:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17iIaB-0003DY-00; Fri, 23 Aug 2002 19:50:51 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 714111112F2; Fri, 23 Aug 2002 19:38:11 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA24199 for linac-eng-list; Fri, 23 Aug 2002 12:00:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA24195 for ; Fri, 23 Aug 2002 12:00:03 -0500 (CDT) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Fri, 23 Aug 2002 13:00:43 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C24AC6.9DCE11D4" Subject: MLC question Date: Fri, 23 Aug 2002 13:00:43 -0400 Message-ID: X-MS-TNEF-Correlator: Thread-Topic: MLC question Thread-Index: AcJKxlIf6xXbl077TOiBrctvkuvcqw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 23 Aug 2002 17:00:43.0342 (UTC) FILETIME=[9DEE5EE0:01C24AC6] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Subject: MLC question Date: Fri, 23 Aug 2002 13:00:43 -0400 X-MS-TNEF-Correlator: Thread-Topic: MLC question Thread-Index: AcJKxlIf6xXbl077TOiBrctvkuvcqw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 23 Aug 2002 17:00:43.0342 (UTC) FILETIME=[9DEE5EE0:01C24AC6] Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C24AC6.9DCE11D4 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Greetings all! *CARRIAGE SERVICE We have a 52 leaf Mark II and this fault shows up during IMRT's but not = during treatment, it shows during the gantry rotation to the next step = and shoot position. Any ideas? Giuseppe 'Joe' Orsolini RT(T) =20 Service Engineer=20 2002-2004 Cancer Center Employee Council Rep =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) ------_=_NextPart_001_01C24AC6.9DCE11D4 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 ------_=_NextPart_001_01C24AC6.9DCE11D4-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 17:18:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jLd3-0006IM-00; Mon, 26 Aug 2002 17:18:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D0F041112F1; Mon, 26 Aug 2002 17:04:32 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA24689 for linac-eng-list; Mon, 26 Aug 2002 08:54:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc_nt ([207.35.220.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA24684 for ; Mon, 26 Aug 2002 08:53:56 -0500 (CDT) Received: by KRCCMAIL with Internet Mail Service (5.5.2656.59) id ; Mon, 26 Aug 2002 09:35:26 -0400 Message-ID: From: "Kloster, Stephen" To: "Linac-Eng (E-mail)" Cc: "'sgensens@cspmedical.com'" Subject: Gammex Fibre optic backpointer RETRACTION Date: Mon, 26 Aug 2002 09:35:25 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C24D05.6F528750" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kloster, Stephen" To: "Linac-Eng (E-mail)" Cc: "'sgensens@cspmedical.com'" Subject: Gammex Fibre optic backpointer RETRACTION Date: Mon, 26 Aug 2002 09:35:25 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C24D05.6F528750 Content-Type: text/plain; charset="iso-8859-1" I take this opportunity to retract all comments I have made regarding CSP Medical. The message I recently posted to the list was in no way intended to imply a lack of service on the part of CSP Medical or to damage their company image with false statements. Nor was the intention to connect the name CSP with a lack of service. The statements I made in the message in question were made solely on my own behalf and not on behalf of my employer or the owner of any equipment used to transmit this message. Mr. Gensens, please advise me if this retraction is sufficient to avoid legal followup by your lawyer to my employer for a statement made in good faith with no malicious intent. Sincerely, Stephen Kloster [Kloster, Stephen] -----Original Message----- From: Steve Gensens [mailto:sgensens@cspmedical.com] Sent: Friday, August 23, 2002 7:45 AM To: Stephen.Kloster@krcc.on.ca Subject: Retraction Mr. Kloster, I was sent a copy of your email from a member of the Linac-Eng group that I know well. One of my jobs as President of CSP Medical is to protect our image against false statements. Your email uses our name CSP in connection with a lack of service by saying "yet to respond". The fact is our CSR did respond to your request in a timely fashion. To avoid legal followup by my lawyer to your cancer centre please email a retraction to this user group and cc me on your email today. Sincerely, Steve Gensens President CSP Medical Your Complete Source for Medical Accessories www.cspmedical.com 800-265-3460 x 21 Fax: 519-473-2585 E-mail: sg@cspmedical.com http://www.cspmedical.com From: Kloster, Stephen [mailto:Stephen.Kloster@krcc.on.ca] Sent: August 21, 2002 6:14 PM To: Linac-Eng (E-mail) Subject: Gammex fibre optic backpointer Hello all, Does anyone have a second source for the Gammex fibre optic cable assembly used on the backpointer system of a 2100C/D? Varian no longer sells these, and the Canadian distributor for Gammex (CSP) has yet to respond. Thanks in advance. Steve Kloster Kingston RCC Kingston, Ontario ------_=_NextPart_001_01C24D05.6F528750 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

    I take this opportunity to retract all = comments I have=20 made regarding CSP Medical. The message I recently posted to the = list was=20 in no way intended to imply a lack of service on the part of CSP = Medical or to=20 damage their company image with false statements. Nor was the intention = to=20 connect the name CSP with a lack of service. = The statements I made in the message in = question were=20 made solely on my own behalf and not on behalf of my employer or the = owner of=20 any equipment used to transmit this message. =

    Mr. Gensens, please advise me if this = retraction is=20 sufficient to avoid legal followup by your lawyer to my employer for a = statement=20 made in good faith with no malicious = intent.

     

    Sincerely,

    Stephen=20 Kloster


    [Kloster, = Stephen] 
     -----Original = Message-----
    From:=20 Steve Gensens [mailto:sgensens@cspmedical.com]
    Sent: Friday, = August=20 23, 2002 7:45 AM
    To: = Stephen.Kloster@krcc.on.ca
    Subject:=20 Retraction

    Mr.=20 Kloster,

    I was=20 sent a copy of your email from a member of the Linac-Eng group that I know well.=20

    One of=20 my jobs as President of CSP Medical is to protect our image against = false=20 statements.  Your email = uses our=20 name CSP in connection with a lack of service by saying "yet to = respond". The=20 fact is our CSR did respond to your request in a timely fashion.=20

    To=20 avoid legal followup by my lawyer to your = cancer=20 centre please email a retraction to this user group and cc me on your = email=20 today.

    Sincerely,

     

    Steve=20 Gensens

    President

     

    CSP Medical
    Your = Complete Source=20 for  Medical=20 Accessories

    www.cspmedical.com
    800-265-3460 x=20 21

    Fax: = 519-473-2585
    E-mail:=20 sg@cspmedical.com

    http://www.cspmedical.com

     

     

     

     

    From: Kloster,=20 Stephen [mailto:Stephen.Kloster@krcc.on.ca]
    Sent:         August 21,=20 2002 6:14=20 PM
    To: Linac-Eng = (E-mail)
    Subject: Gammex fibre optic backpointer

    Hello=20 all, =
    Does     anyone have a second source for the Gammex fibre optic = cable assembly=20 used on the backpointer system of a = 2100C/D? Varian no=20 longer sells these, and the Canadian distributor for Gammex     (CSP) has yet to respond. Thanks in=20 advance.

    Steve Kloster
    Kingston RCC =
    Kingston    , =     Ontario     =

     

     

    ------_=_NextPart_001_01C24D05.6F528750-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 17:44:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jM2H-0006Su-00; Mon, 26 Aug 2002 17:44:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1479B1112F1; Mon, 26 Aug 2002 17:30:37 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA26172 for linac-eng-list; Mon, 26 Aug 2002 10:12:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO.MGH.HARVARD.EDU (phsexchico.mgh.harvard.edu [132.183.126.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA26168 for ; Mon, 26 Aug 2002 10:12:17 -0500 (CDT) Received: by phsexchico.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Mon, 26 Aug 2002 11:11:41 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFFD@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Orsolini, Joe D'" , "Linac-Eng (E-mail)" Subject: RE: MLC question Date: Mon, 26 Aug 2002 11:11:38 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Orsolini, Joe D'" , "Linac-Eng (E-mail)" Subject: RE: MLC question Date: Mon, 26 Aug 2002 11:11:38 -0400 Sender: owner-linac-eng@plato.aristotle.net We had one that could be reset, depended on angle. Turned out to be a momentary error based on the position of a piece of tie wrap. We looked at cables, mechanical looseness, etc. I would wiggle everything, see if you can find it. Risky, due to the infamous flat cables. Can you reset it? No more details in the message? Always same angle? Depends on sequence of gantry rotations, not just angle (cables)? Loose carriage or sw? Phase of the moon? Good luck, like to hear your solution, as we are just starting IMRT on a 52. This week's phrase: Out of my mind. Back in 5 minutes. Jerry > -----Original Message----- > From: Orsolini, Joe D [mailto:GDO7Q@hscmail.mcc.virginia.edu] > Sent: Friday, August 23, 2002 1:01 PM > To: Linac-Eng (E-mail) > Subject: MLC question > > Greetings all! > > > *CARRIAGE SERVICE > > We have a 52 leaf Mark II and this fault shows up during IMRT's but not during > treatment, it shows during the gantry rotation to the next step and shoot > position. Any ideas? > > > > Giuseppe 'Joe' Orsolini RT(T) > Service Engineer > 2002-2004 Cancer Center Employee Council Rep > University of Virginia Health System > Department of Radiation Oncology > Division of Radiological Physics > Box 800375 > Charlottesville, VA 22908-0375 > *: orsolini@virginia.edu > 434-924-9422 (w) > 434-982-3520 (fax) > 434-970-8165 (pager) > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 18:20:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jMbR-0006c9-00; Mon, 26 Aug 2002 18:20:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7ED5E1112F1; Mon, 26 Aug 2002 18:06:52 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA27154 for linac-eng-list; Mon, 26 Aug 2002 10:50:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA27149 for ; Mon, 26 Aug 2002 10:50:48 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g7QFolrF297256 for ; Mon, 26 Aug 2002 11:50:47 -0400 Message-ID: <3D6A4D54.3060209@hsc.vcu.edu> Date: Mon, 26 Aug 2002 11:46:28 -0400 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.0) Gecko/20020530 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: freedom of What? Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 26 Aug 2002 11:46:28 -0400 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: "linac-eng@plato.aristotle.net" Subject: freedom of What? Sender: owner-linac-eng@plato.aristotle.net Seems bully tactics work. Chris, 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 18:46:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jN0D-0006in-00; Mon, 26 Aug 2002 18:46:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 259F11112F1; Mon, 26 Aug 2002 18:32:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA27813 for linac-eng-list; Mon, 26 Aug 2002 11:19:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from advocatehealth.com (moat.advocatehealth.com [64.241.230.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA27806 for ; Mon, 26 Aug 2002 11:19:50 -0500 (CDT) Received: from nsmailha ([10.18.117.13]) by ns.advocatehealth.com with ESMTP id <119176>; Mon, 26 Aug 2002 11:19:41 -0500 Received: from advocatehealth.com (localhost [127.0.0.1]) by webmail.advocatehealth.com (iPlanet Messaging Server 5.1 HotFix 0.9 (built May 30 2002)) with ESMTP id <0H1G000DTLCSXB@webmail.advocatehealth.com>; Mon, 26 Aug 2002 11:19:40 -0500 (CDT) Received: from [10.18.65.201] by webmail.advocatehealth.com (mshttpd); Mon, 26 Aug 2002 11:19:40 -0500 Date: Mon, 26 Aug 2002 11:19:40 -0500 From: Kerry Price Subject: Re: Gammex Fibre optic backpointer RETRACTION To: "Kloster, Stephen" Cc: "Linac-Eng (E-mail)" Message-id: <10393e6103c9fa.103c9fa10393e6@advocatehealth.com> MIME-version: 1.0 X-Mailer: iPlanet Messenger Express 5.1 HotFix 0.9 (built May 30 2002) Content-type: text/plain; charset=us-ascii Content-language: en Content-transfer-encoding: 7BIT Content-disposition: inline X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 26 Aug 2002 11:19:40 -0500 From: Kerry Price Subject: Re: Gammex Fibre optic backpointer RETRACTION To: "Kloster, Stephen" Cc: "Linac-Eng (E-mail)" Content-language: en Content-disposition: inline X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Stephen, Did you ever find the fiber optic cable you were looking for? I see where your employer was threatened with legal action but did that company ever provide the information you were looking for? Wow! I think I'd be in the market for a different vendor/supplier! Kerry Price Lutheran General Hospital Park Ridge, IL USA ----- Original Message ----- From: "Kloster, Stephen" Date: Monday, August 26, 2002 8:35 am Subject: Gammex Fibre optic backpointer RETRACTION > I take this opportunity to retract all comments I have made > regarding CSP > Medical. The message I recently posted to the list was in no way > intended to > imply a lack of service on the part of CSP Medical or to damage their > company image with false statements. Nor was the intention to > connect the > name CSP with a lack of service. The statements I made in the > message in > question were made solely on my own behalf and not on behalf of my > employeror the owner of any equipment used to transmit this > message. > Mr. Gensens, please advise me if this retraction is sufficient to > avoidlegal followup by your lawyer to my employer for a statement > made in good > faith with no malicious intent. > > Sincerely, > Stephen Kloster > > [Kloster, Stephen] > -----Original Message----- > From: Steve Gensens [mailto:sgensens@cspmedical.com] > Sent: Friday, August 23, 2002 7:45 AM > To: Stephen.Kloster@krcc.on.ca > Subject: Retraction > > > Mr. Kloster, > I was sent a copy of your email from a member of the Linac-Eng > group that I > know well. > One of my jobs as President of CSP Medical is to protect our image > againstfalse statements. Your email uses our name CSP in > connection with a lack of > service by saying "yet to respond". The fact is our CSR did > respond to your > request in a timely fashion. > To avoid legal followup by my lawyer to your cancer centre please > email a > retraction to this user group and cc me on your email today. > Sincerely, > > Steve Gensens > President > > CSP Medical > Your Complete Source for Medical Accessories > > www.cspmedical.com > 800-265-3460 x 21 > Fax: 519-473-2585 > E-mail: sg@cspmedical.com > http://www.cspmedical.com > > > > > From: Kloster, Stephen [mailto:Stephen.Kloster@krcc.on.ca] > Sent: August 21, 2002 6:14 PM > To: Linac-Eng (E-mail) > Subject: Gammex fibre optic backpointer > Hello all, > Does anyone have a second source for the Gammex fibre optic cable > assemblyused on the backpointer system of a 2100C/D? Varian no > longer sells these, > and the Canadian distributor for Gammex (CSP) has yet to respond. > Thanks in > advance. > Steve Kloster > Kingston RCC > Kingston, Ontario > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 18:59:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jNCh-0006jY-00; Mon, 26 Aug 2002 18:59:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 51EF01112F1; Mon, 26 Aug 2002 18:45:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA28257 for linac-eng-list; Mon, 26 Aug 2002 11:35:52 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from advocatehealth.com (moat.advocatehealth.com [64.241.230.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA28253 for ; Mon, 26 Aug 2002 11:35:51 -0500 (CDT) Received: from nsmailha ([10.18.117.13]) by ns.advocatehealth.com with ESMTP id <119099>; Mon, 26 Aug 2002 11:35:42 -0500 Received: from advocatehealth.com (localhost [127.0.0.1]) by webmail.advocatehealth.com (iPlanet Messaging Server 5.1 HotFix 0.9 (built May 30 2002)) with ESMTP id <0H1G009FKM3HBH@webmail.advocatehealth.com>; Mon, 26 Aug 2002 11:35:41 -0500 (CDT) Received: from [10.18.65.201] by webmail.advocatehealth.com (mshttpd); Mon, 26 Aug 2002 11:35:41 -0500 Date: Mon, 26 Aug 2002 11:35:41 -0500 From: Kerry Price Subject: Re: freedom of What? To: "Christopher L. Bartee" Cc: "linac-eng@plato.aristotle.net" Message-id: <1055ed810577c9.10577c91055ed8@advocatehealth.com> MIME-version: 1.0 X-Mailer: iPlanet Messenger Express 5.1 HotFix 0.9 (built May 30 2002) Content-type: text/plain; charset=us-ascii Content-language: en Content-transfer-encoding: 7BIT Content-disposition: inline X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 26 Aug 2002 11:35:41 -0500 From: Kerry Price Subject: Re: freedom of What? To: "Christopher L. Bartee" Cc: "linac-eng@plato.aristotle.net" Content-language: en Content-disposition: inline X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Do they? I know where I will never buy products. Kerry ----- Original Message ----- From: "Christopher L. Bartee" Date: Monday, August 26, 2002 10:46 am Subject: freedom of What? > Seems bully tactics work. > > Chris, > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 19:12:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jNPe-0006ky-00; Mon, 26 Aug 2002 19:12:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 18A561112F1; Mon, 26 Aug 2002 18:58:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA28770 for linac-eng-list; Mon, 26 Aug 2002 11:50:52 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA28765 for ; Mon, 26 Aug 2002 11:50:50 -0500 (CDT) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id LAA26645; Mon, 26 Aug 2002 11:47:04 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C21.005BF6FC ; Mon, 26 Aug 2002 11:44:30 -0500 X-Lotus-FromDomain: MDACC To: "Christopher L. Bartee" Cc: "linac-eng@plato.aristotle.net" Message-ID: <86256C21.005BF538.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 26 Aug 2002 11:46:30 -0500 Subject: Re: freedom of What? Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Christopher L. Bartee" Cc: "linac-eng@plato.aristotle.net" Date: Mon, 26 Aug 2002 11:46:30 -0500 Subject: Re: freedom of What? Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net This is my opinion and does not reflect the opinion of my employeer. Seems like somone has forgotten whom his or hers customers are.... "Christopher L. Bartee" on 08/26/2002 10:46:28 AM To: "linac-eng@plato.aristotle.net" cc: (bcc: Vincente Ortiz/MDACC) Subject: freedom of What? Seems bully tactics work. Chris, 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 20:34:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jOhS-0006qC-00; Mon, 26 Aug 2002 20:34:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DB6411112F1; Mon, 26 Aug 2002 20:21:14 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA00958 for linac-eng-list; Mon, 26 Aug 2002 13:08:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m08.mx.aol.com (imo-m08.mx.aol.com [64.12.136.163]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA00954 for ; Mon, 26 Aug 2002 13:08:52 -0500 (CDT) From: OER123@aol.com Received: from OER123@aol.com by imo-m08.mx.aol.com (mail_out_v33.5.) id y.16a.12c13a2f (16930) for ; Mon, 26 Aug 2002 14:08:18 -0400 (EDT) Message-ID: <16a.12c13a2f.2a9bc892@aol.com> Date: Mon, 26 Aug 2002 14:08:18 EDT Subject: Intermittent VAC 1 To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_16a.12c13a2f.2a9bc892_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: OER123@aol.com Date: Mon, 26 Aug 2002 14:08:18 EDT Subject: Intermittent VAC 1 To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_16a.12c13a2f.2a9bc892_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have a type II 2100C, has the two boards in Vacion P/S chasis. Site gets a very intermittent VAC 1 that does not register on chasis and does not cause light for VAC 1 to turn on on the input interface #2 PCB. Control processor and com processor R & R along with Vacion and Ion chamber interlock PCB, and -500 V P/S PCB. I believe the software version is 6.0, it usually happens when no one is around and not at beam on or gantry movement. Any ideas? I am thinking about replacing DIO #0. Thanks. Fred Williams Oncology Equipment Repair, Inc. Springfield, Illinois --part1_16a.12c13a2f.2a9bc892_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have a type II 2100C, has the two boards in Vacion P/S chasis.  Site gets a very intermittent VAC  1 that does not register on chasis and does not cause light for VAC 1 to turn on on the input interface #2 PCB.  Control processor and com processor R & R along with Vacion and Ion chamber interlock PCB, and -500 V P/S PCB.  I believe the software version is 6.0, it usually happens when no one is around and not at beam on or gantry movement.  Any ideas?  I am thinking about replacing DIO #0.

    Thanks.
    Fred Williams
    Oncology Equipment Repair, Inc.
    Springfield, Illinois     --part1_16a.12c13a2f.2a9bc892_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 20:34:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jOhS-0006qD-00; Mon, 26 Aug 2002 20:34:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E279F1112F4; Mon, 26 Aug 2002 20:21:14 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA00497 for linac-eng-list; Mon, 26 Aug 2002 12:48:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d05.mx.aol.com (imo-d05.mx.aol.com [205.188.157.37]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA00493 for ; Mon, 26 Aug 2002 12:48:08 -0500 (CDT) From: OER123@aol.com Received: from OER123@aol.com by imo-d05.mx.aol.com (mail_out_v33.5.) id y.d3.10b2cf23 (16930) for ; Mon, 26 Aug 2002 13:47:36 -0400 (EDT) Message-ID: Date: Mon, 26 Aug 2002 13:47:36 EDT Subject: Vlier Spring Plunger To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_d3.10b2cf23.2a9bc3b8_boundary" X-Mailer: AOL 7.0 for Windows US sub 10513 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: OER123@aol.com Date: Mon, 26 Aug 2002 13:47:36 EDT Subject: Vlier Spring Plunger To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_d3.10b2cf23.2a9bc3b8_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Does anyone know of a metal type tool to remove the Vlier Spring Plunger? I have used the plastic type in the past and they seem to break easily. I tried to contact Bay Cities Tool & Supply (listed on the Tech Tip) and the phone number is no longer valid. I cannot get vice-scrips on the plunger front because it is on a XIM accessory mount. Additionally, the allen head is rounded out on the backside of the spring plunger. Thanks. Fred Williams Oncology Equipment Repair, Inc. Springfield, Illinois --part1_d3.10b2cf23.2a9bc3b8_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Does anyone know of a metal type tool to remove the Vlier Spring Plunger?  I have used the plastic type in the past and they seem to break easily.  I tried to contact Bay Cities Tool & Supply (listed on the Tech Tip) and the phone number is no longer valid.

    I cannot get vice-scrips on the plunger front because it is on a XIM accessory mount.  Additionally, the allen head is rounded out on the backside of the spring plunger.

    Thanks.
    Fred Williams
    Oncology Equipment Repair, Inc.
    Springfield, Illinois     --part1_d3.10b2cf23.2a9bc3b8_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 21:04:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jPAY-0006sB-00; Mon, 26 Aug 2002 21:04:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F380D1112F1; Mon, 26 Aug 2002 20:51:18 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA01921 for linac-eng-list; Mon, 26 Aug 2002 13:39:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mbpcc_exchange.ololrmc.com ([64.56.25.163]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA01917 for ; Mon, 26 Aug 2002 13:39:45 -0500 (CDT) Received: by library1.itp.ucsb.edu with Internet Mail Service (5.5.2656.59) id ; Mon, 26 Aug 2002 13:37:09 -0500 Message-ID: From: "Hidalgo, Dr Oscar" To: "'Kloster, Stephen'" Cc: linac-eng@plato.aristotle.net Subject: RE: Gammex Fibre optic backpointer RETRACTION Date: Mon, 26 Aug 2002 13:37:07 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hidalgo, Dr Oscar" To: "'Kloster, Stephen'" Cc: linac-eng@plato.aristotle.net Subject: RE: Gammex Fibre optic backpointer RETRACTION Date: Mon, 26 Aug 2002 13:37:07 -0500 Sender: owner-linac-eng@plato.aristotle.net Stephen, feel sorry for that person who wrote the threatening e-mail because he is doing a disservice to his company. That's no the way to make customers. -----Original Message----- From: Kloster, Stephen [SMTP:Stephen.Kloster@krcc.on.ca] Sent: Monday, August 26, 2002 8:35 AM To: Linac-Eng (E-mail) Cc: 'sgensens@cspmedical.com' Subject: Gammex Fibre optic backpointer RETRACTION I take this opportunity to retract all comments I have made regarding CSP Medical. The message I recently posted to the list was in no way intended to imply a lack of service on the part of CSP Medical or to damage their company image with false statements. Nor was the intention to connect the name CSP with a lack of service. The statements I made in the message in question were made solely on my own behalf and not on behalf of my employer or the owner of any equipment used to transmit this message. Mr. Gensens, please advise me if this retraction is sufficient to avoid legal followup by your lawyer to my employer for a statement made in good faith with no malicious intent. Sincerely, Stephen Kloster [Kloster, Stephen] -----Original Message----- From: Steve Gensens [mailto:sgensens@cspmedical.com] Sent: Friday, August 23, 2002 7:45 AM To: Stephen.Kloster@krcc.on.ca Subject: Retraction Mr. Kloster, I was sent a copy of your email from a member of the Linac-Eng group that I know well. One of my jobs as President of CSP Medical is to protect our image against false statements. Your email uses our name CSP in connection with a lack of service by saying "yet to respond". The fact is our CSR did respond to your request in a timely fashion. To avoid legal followup by my lawyer to your cancer centre please email a retraction to this user group and cc me on your email today. Sincerely, Steve Gensens President CSP Medical Your Complete Source for Medical Accessories www.cspmedical.com 800-265-3460 x 21 Fax: 519-473-2585 E-mail: sg@cspmedical.com http://www.cspmedical.com From: Kloster, Stephen [mailto:Stephen.Kloster@krcc.on.ca] Sent: August 21, 2002 6:14 PM To: Linac-Eng (E-mail) Subject: Gammex fibre optic backpointer Hello all, Does anyone have a second source for the Gammex fibre optic cable assembly used on the backpointer system of a 2100C/D? Varian no longer sells these, and the Canadian distributor for Gammex (CSP) has yet to respond. Thanks in advance. Steve Kloster Kingston RCC Kingston, Ontario 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 21:53:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jPvQ-0006uA-00; Mon, 26 Aug 2002 21:53:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CC19B1112F1; Mon, 26 Aug 2002 21:39:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA04039 for linac-eng-list; Mon, 26 Aug 2002 14:22:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA04031 for ; Mon, 26 Aug 2002 14:22:43 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Mon, 26 Aug 2002 15:22:11 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30EFFE@phsexch6.partners.org> From: "Maddox, Buford J" To: "'OER123@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Vlier Spring Plunger Date: Mon, 26 Aug 2002 15:21:39 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C24D35.CD591CD0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'OER123@aol.com'" , linac-eng@plato.aristotle.net Subject: RE: Vlier Spring Plunger Date: Mon, 26 Aug 2002 15:21:39 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C24D35.CD591CD0 Content-Type: text/plain; charset="iso-8859-1" Winfred Berg co maybe? -----Original Message----- From: OER123@aol.com [mailto:OER123@aol.com] Sent: Monday, August 26, 2002 1:48 PM To: linac-eng@plato.aristotle.net Subject: Vlier Spring Plunger Does anyone know of a metal type tool to remove the Vlier Spring Plunger? I have used the plastic type in the past and they seem to break easily. I tried to contact Bay Cities Tool & Supply (listed on the Tech Tip) and the phone number is no longer valid. I cannot get vice-scrips on the plunger front because it is on a XIM accessory mount. Additionally, the allen head is rounded out on the backside of the spring plunger. Thanks. Fred Williams Oncology Equipment Repair, Inc. Springfield, Illinois ------_=_NextPart_001_01C24D35.CD591CD0 Content-Type: text/html; charset="iso-8859-1"
    Winfred Berg co maybe?
    -----Original Message-----
    From: OER123@aol.com [mailto:OER123@aol.com]
    Sent: Monday, August 26, 2002 1:48 PM
    To: linac-eng@plato.aristotle.net
    Subject: Vlier Spring Plunger

    Does anyone know of a metal type tool to remove the Vlier Spring Plunger?  I have used the plastic type in the past and they seem to break easily.  I tried to contact Bay Cities Tool & Supply (listed on the Tech Tip) and the phone number is no longer valid.

    I cannot get vice-scrips on the plunger front because it is on a XIM accessory mount.  Additionally, the allen head is rounded out on the backside of the spring plunger.

    Thanks.
    Fred Williams
    Oncology Equipment Repair, Inc.
    Springfield, Illinois
    ------_=_NextPart_001_01C24D35.CD591CD0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 22:32:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jQXF-0006wT-00; Mon, 26 Aug 2002 22:32:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 64EA51112F1; Mon, 26 Aug 2002 22:18:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA05138 for linac-eng-list; Mon, 26 Aug 2002 15:01:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hera.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA05130 for ; Mon, 26 Aug 2002 15:01:13 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H1G0GP3MVLV5A@email.med.yale.edu> for linac-eng@plato.aristotle.net; Mon, 26 Aug 2002 16:01:07 -0400 (EDT) Date: Mon, 26 Aug 2002 15:59:00 -0400 From: "Peter E. Vitali" Subject: Re: Intermittent VAC 1 To: OER123@aol.com Cc: linac-eng@plato.aristotle.net Message-id: <3D6A87FD.74AA0FDB@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <16a.12c13a2f.2a9bc892@aol.com> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 26 Aug 2002 15:59:00 -0400 From: "Peter E. Vitali" Subject: Re: Intermittent VAC 1 To: OER123@aol.com Cc: linac-eng@plato.aristotle.net X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Fred: Check the vacuum plumbing stage that goes to the roughing pump. There is a vacuum gauge meter on the left center side of the gantry. It connects directly to the vacuum gauge tube in this section of the vacuum system. If the tube type pins on the gauge or the sockets in the connectors get corroded you will get intermittent VAC 1 faults. This gauge bypasses the Vacion Power Supply and goes directly to the VAC 1 fault. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Aug 26 23:41:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jRc0-00070v-00; Mon, 26 Aug 2002 23:41:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 12D0B1112F1; Mon, 26 Aug 2002 23:27:46 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA06920 for linac-eng-list; Mon, 26 Aug 2002 16:09:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe4.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA06916 for ; Mon, 26 Aug 2002 16:09:33 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C24D44.CCB09460" Subject: RE: Intermittent VAC 1 Date: Mon, 26 Aug 2002 17:09:00 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386E1@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Intermittent VAC 1 Thread-Index: AcJNPJKUDYbFNkwvSpWbJt3zJQ0HZwAA2npQ From: "Tim Cullen" To: , Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: RE: Intermittent VAC 1 Date: Mon, 26 Aug 2002 17:09:00 -0400 Thread-Topic: Intermittent VAC 1 Thread-Index: AcJNPJKUDYbFNkwvSpWbJt3zJQ0HZwAA2npQ From: "Tim Cullen" To: , Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C24D44.CCB09460 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Fred, if you look at pg 3 of the vacion and ion chamber I/l pcb, there is a jumper (w2). If this is on then you may want to remove it to rule out the ion gauge/thermocouple. The spring plungers I've had trouble with usually had loctite on them and required heating to make them easy to remove. Tim =20 -----Original Message----- From: OER123@aol.com [mailto:OER123@aol.com]=20 Sent: Monday, August 26, 2002 2:08 PM To: linac-eng@plato.aristotle.net Subject: Intermittent VAC 1 =09 =09 I have a type II 2100C, has the two boards in Vacion P/S chasis. Site gets a very intermittent VAC 1 that does not register on chasis and does not cause light for VAC 1 to turn on on the input interface #2 PCB. Control processor and com processor R & R along with Vacion and Ion chamber interlock PCB, and -500 V P/S PCB. I believe the software version is 6.0, it usually happens when no one is around and not at beam on or gantry movement. Any ideas? I am thinking about replacing DIO #0. =09 Thanks. Fred Williams Oncology Equipment Repair, Inc. Springfield, Illinois=20 ------_=_NextPart_001_01C24D44.CCB09460 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    Fred, if you look at pg 3 of the vacion and = ion chamber=20 I/l pcb, there is a jumper (w2). If this is on then you may want to = remove it to=20 rule out the ion gauge/thermocouple.
    The=20 spring plungers I've had trouble with usually had loctite on them and = required=20 heating to make them easy to remove.
    Tim
     
    -----Original Message-----
    From: = OER123@aol.com=20 [mailto:OER123@aol.com]
    Sent: Monday, August 26, 2002 2:08=20 PM
    To: linac-eng@plato.aristotle.net
    Subject: = Intermittent=20 VAC 1

    I have a = type II 2100C,=20 has the two boards in Vacion P/S chasis.  Site gets a very = intermittent=20 VAC  1 that does not register on chasis and does not cause light = for VAC=20 1 to turn on on the input interface #2 PCB.  Control processor = and com=20 processor R & R along with Vacion and Ion chamber interlock PCB, = and -500=20 V P/S PCB.  I believe the software version is 6.0, it usually = happens=20 when no one is around and not at beam on or gantry movement.  Any = ideas?  I am thinking about replacing DIO = #0.

    Thanks.
    Fred=20 Williams
    Oncology Equipment Repair, Inc.
    Springfield, Illinois=20     =00 ------_=_NextPart_001_01C24D44.CCB09460-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 03:18:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jUzo-0007Ak-00; Tue, 27 Aug 2002 03:18:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 701951112F1; Tue, 27 Aug 2002 03:04:29 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA10325 for linac-eng-list; Mon, 26 Aug 2002 19:34:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nahealth.com ([207.224.163.153]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id TAA10320 for ; Mon, 26 Aug 2002 19:34:16 -0500 (CDT) Received: from GATEWAY-Message_Server by nahealth.com with Novell_GroupWise; Mon, 26 Aug 2002 17:32:33 -0700 Message-Id: X-Mailer: Novell GroupWise 5.5.5 Date: Mon, 26 Aug 2002 17:32:19 -0700 From: "Timothy Brown" To: , Cc: Subject: Re: Gammex Fibre optic backpointer RETRACTION Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA10322 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 26 Aug 2002 17:32:19 -0700 From: "Timothy Brown" To: , Cc: Subject: Re: Gammex Fibre optic backpointer RETRACTION Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA10322 Sender: owner-linac-eng@plato.aristotle.net Who is this CSP Medical, anyway? By the way, won't Gammex RMI sell to you direct? Tim Brown Flagstaff >>> "Kloster, Stephen" 08/26/02 06:35AM >>> I take this opportunity to retract all comments I have made regarding CSP Medical. The message I recently posted to the list was in no way intended to imply a lack of service on the part of CSP Medical or to damage their company image with false statements. Nor was the intention to connect the name CSP with a lack of service. The statements I made in the message in question were made solely on my own behalf and not on behalf of my employer or the owner of any equipment used to transmit this message. Mr. Gensens, please advise me if this retraction is sufficient to avoid legal followup by your lawyer to my employer for a statement made in good faith with no malicious intent. Sincerely, Stephen Kloster [Kloster, Stephen] -----Original Message----- From: Steve Gensens [mailto:sgensens@cspmedical.com] Sent: Friday, August 23, 2002 7:45 AM To: Stephen.Kloster@krcc.on.ca Subject: Retraction Mr. Kloster, I was sent a copy of your email from a member of the Linac-Eng group that I know well. One of my jobs as President of CSP Medical is to protect our image against false statements. Your email uses our name CSP in connection with a lack of service by saying "yet to respond". The fact is our CSR did respond to your request in a timely fashion. To avoid legal followup by my lawyer to your cancer centre please email a retraction to this user group and cc me on your email today. Sincerely, Steve Gensens President CSP Medical Your Complete Source for Medical Accessories www.cspmedical.com 800-265-3460 x 21 Fax: 519-473-2585 E-mail: sg@cspmedical.com http://www.cspmedical.com From: Kloster, Stephen [mailto:Stephen.Kloster@krcc.on.ca] Sent: August 21, 2002 6:14 PM To: Linac-Eng (E-mail) Subject: Gammex fibre optic backpointer Hello all, Does anyone have a second source for the Gammex fibre optic cable assembly used on the backpointer system of a 2100C/D? Varian no longer sells these, and the Canadian distributor for Gammex (CSP) has yet to respond. Thanks in advance. Steve Kloster Kingston RCC Kingston, Ontario 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 15:20:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jgGm-0004F9-00; Tue, 27 Aug 2002 15:20:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 26B3A1112F1; Tue, 27 Aug 2002 15:06:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA18069 for linac-eng-list; Tue, 27 Aug 2002 07:38:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq11.netvigator.com (imsmq11.netvigator.com [218.102.48.124]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA18065 for ; Tue, 27 Aug 2002 07:38:45 -0500 (CDT) Received: (qmail 5385 invoked from network); 27 Aug 2002 12:38:28 -0000 Received: from pcd628171.netvigator.com (HELO kyeung) (218.102.160.171) by imsmq11.netvigator.com with SMTP; 27 Aug 2002 12:38:28 -0000 Message-ID: <005c01c24dc5$cd85f6c0$703efea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: dose rate control :Kly I or Gun console mode ? Date: Tue, 27 Aug 2002 20:32:26 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0059_01C24E08.DB87A500" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: dose rate control :Kly I or Gun console mode ? Date: Tue, 27 Aug 2002 20:32:26 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0059_01C24E08.DB87A500 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 2300CD (T-drive) version 6.1 We had an incident of acc. solenoid power supply fault, the linac did = not produce any output and it seemed the linac was under gun console = mode (in clinical mode!). As we reduced the console gun delay the linac = could produce some output. =20 Could anyone advise how does the clinac switch into "gun console mode"? Best regards, Kim Yeung ------=_NextPart_000_0059_01C24E08.DB87A500 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
            = Varian=20 2300CD (T-drive) version 6.1
     
    We had an incident of acc. solenoid = power supply=20 fault,  the linac did not produce any output and it = seemed the=20 linac was under gun console mode (in clinical mode!). As we reduced the = console=20 gun delay the linac could produce some output.
     
    Could anyone advise how does the clinac = switch=20 into "gun console mode"?
     
    Best regards,
     
    Kim Yeung
    ------=_NextPart_000_0059_01C24E08.DB87A500-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 16:37:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jhSx-0005Dk-00; Tue, 27 Aug 2002 16:37:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2A5E91112F1; Tue, 27 Aug 2002 16:23:14 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA21684 for linac-eng-list; Tue, 27 Aug 2002 09:08:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r05.mx.aol.com (imo-r05.mx.aol.com [152.163.225.101]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA21680 for ; Tue, 27 Aug 2002 09:08:47 -0500 (CDT) From: Rtsolution@aol.com Received: from Rtsolution@aol.com by imo-r05.mx.aol.com (mail_out_v33.5.) id y.115.1669eabc (3842) for ; Tue, 27 Aug 2002 10:08:14 -0400 (EDT) Message-ID: <115.1669eabc.2a9ce1ce@aol.com> Date: Tue, 27 Aug 2002 10:08:14 EDT Subject: lack of emails lately To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 5.0 for Windows sub 107 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Rtsolution@aol.com Date: Tue, 27 Aug 2002 10:08:14 EDT Subject: lack of emails lately To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net I recently received very few emails. Could anyone tell me if I need to register again or do something in order to get emails Thanks in advance 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 16:37:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jhT2-0005Dn-00; Tue, 27 Aug 2002 16:37:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 397551112F1; Tue, 27 Aug 2002 16:23:19 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA21382 for linac-eng-list; Tue, 27 Aug 2002 09:00:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sccrmhc01.attbi.com (sccrmhc01.attbi.com [204.127.202.61]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA21370 for ; Tue, 27 Aug 2002 09:00:00 -0500 (CDT) Received: from c1784162a ([12.247.204.68]) by sccrmhc01.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020827135928.NQTF11061.sccrmhc01.attbi.com@c1784162a>; Tue, 27 Aug 2002 13:59:28 +0000 Message-ID: <002701c24dd2$1b5632a0$0100a8c0@mshome.net> From: "Rich Kimball" To: , References: Subject: Re: Vlier Spring Plunger Date: Tue, 27 Aug 2002 09:00:30 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0024_01C24DA8.321B7560" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: , Subject: Re: Vlier Spring Plunger Date: Tue, 27 Aug 2002 09:00:30 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0024_01C24DA8.321B7560 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Fred, Last I ordered was from Brandon Products Group. http://www.bpg-inc.com = of North Wales, PA Les Riggall was my CSR. Phone is 800-422-3274 I have the tools in VW48, VW50, VW52, VW54 and VW56 This was about 2 years ago. Web site still active as of this date. Happy trails, Rich Kimball Acceletronics Midwest, Inc. ----- Original Message -----=20 From: OER123@aol.com=20 To: linac-eng@plato.aristotle.net=20 Sent: Monday, August 26, 2002 12:47 PM Subject: Vlier Spring Plunger Does anyone know of a metal type tool to remove the Vlier Spring = Plunger? I have used the plastic type in the past and they seem to = break easily. I tried to contact Bay Cities Tool & Supply (listed on = the Tech Tip) and the phone number is no longer valid. I cannot get vice-scrips on the plunger front because it is on a XIM = accessory mount. Additionally, the allen head is rounded out on the = backside of the spring plunger. Thanks. Fred Williams Oncology Equipment Repair, Inc. Springfield, Illinois=20 ------=_NextPart_000_0024_01C24DA8.321B7560 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Fred,
    Last I ordered was from Brandon = Products=20 Group.  http://www.bpg-inc.com of=20 North Wales, PA
    Les Riggall was my CSR.  Phone is=20 800-422-3274
    I have the tools in VW48, VW50, VW52, = VW54 and=20 VW56
     
    This was about 2 years ago. Web site = still active=20 as of this date.
     
    Happy trails,
    Rich Kimball
    Acceletronics Midwest, = Inc.
    ----- Original Message -----
    From:=20 OER123@aol.com
    -----Original Message-----
    From: = Beamguru@aol.com=20 [mailto:Beamguru@aol.com]
    Sent: Friday, June 28, 2002 8:55=20 AM
    To: linac-eng@plato.aristotle.net
    Subject: PV = IAS2=20 timeout issues

    To: linac-eng@plato.aristotle.n= et=20
    Sent: Monday, August 26, 2002 = 12:47=20 PM
    Subject: Vlier Spring = Plunger

    Does anyone know of a metal = type tool to=20 remove the Vlier Spring Plunger?  I have used the plastic type in = the=20 past and they seem to break easily.  I tried to contact Bay = Cities Tool=20 & Supply (listed on the Tech Tip) and the phone number is no = longer=20 valid.

    I cannot get vice-scrips on the plunger front because it = is on a=20 XIM accessory mount.  Additionally, the allen head is rounded out = on the=20 backside of the spring plunger.

    Thanks.
    Fred Williams
    Oncology = Equipment Repair,=20 Inc.
    Springfield, Illinois     =     ------=_NextPart_000_0024_01C24DA8.321B7560-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 16:37:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jhT2-0005Dq-00; Tue, 27 Aug 2002 16:37:16 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6D88A1112F9; Tue, 27 Aug 2002 16:23:19 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA21242 for linac-eng-list; Tue, 27 Aug 2002 08:52:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from whses01.wellmont.org (whses01.wellmont.org [151.102.96.168]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA21232 for ; Tue, 27 Aug 2002 08:52:42 -0500 (CDT) Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Tue, 27 Aug 2002 09:52:06 -0400 Message-ID: <7AF61AA0D5DBD511B2990090274E731679696D@whses02.wellmont.org> From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: Humor Date: Tue, 27 Aug 2002 09:52:00 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: Humor Date: Tue, 27 Aug 2002 09:52:00 -0400 Sender: owner-linac-eng@plato.aristotle.net Time spent by corporate executive generating threatening e-mail: 2 minutes Feeling of corporate executive when apology was received: Satisfaction Watching a corporate executive shoot one self in the foot: Priceless Time it took me to delete vendor information form my database: 1 second Of course this only expresses the opinion of myself and not that of my employer. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 16:37:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jhT9-0005Dt-00; Tue, 27 Aug 2002 16:37:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F0CD1112F1; Tue, 27 Aug 2002 16:23:26 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA21698 for linac-eng-list; Tue, 27 Aug 2002 09:09:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sccrmhc02.attbi.com (sccrmhc02.attbi.com [204.127.202.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA21693 for ; Tue, 27 Aug 2002 09:09:25 -0500 (CDT) Received: from c1784162a ([12.247.204.68]) by sccrmhc02.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020827140853.BQHO13899.sccrmhc02.attbi.com@c1784162a>; Tue, 27 Aug 2002 14:08:53 +0000 Message-ID: <002f01c24dd3$6bc05440$0100a8c0@mshome.net> From: "Rich Kimball" To: , References: Subject: Re: Vlier Spring Plunger Date: Tue, 27 Aug 2002 09:09:55 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002C_01C24DA9.82B05080" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: , Subject: Re: Vlier Spring Plunger Date: Tue, 27 Aug 2002 09:09:55 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_002C_01C24DA9.82B05080 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Fred, Just found a catalog which has the sizes listed. VW48 is 6-32 VW50 is 8-32/8-36 VW52 is 10-32, M4 & M6 VW54 is 1/4-20 & 1/4-28 VW56 is 5/16-18 & M8 VW58 is 3/8-16 & M10 VW60 is 1/2-13 & M12 and I don't think we need to go larger than that. Rich Kimball Acceletronics Midwest, Inc. ----- Original Message -----=20 From: OER123@aol.com=20 To: linac-eng@plato.aristotle.net=20 Sent: Monday, August 26, 2002 12:47 PM Subject: Vlier Spring Plunger Does anyone know of a metal type tool to remove the Vlier Spring = Plunger? I have used the plastic type in the past and they seem to = break easily. I tried to contact Bay Cities Tool & Supply (listed on = the Tech Tip) and the phone number is no longer valid. I cannot get vice-scrips on the plunger front because it is on a XIM = accessory mount. Additionally, the allen head is rounded out on the = backside of the spring plunger. Thanks. Fred Williams Oncology Equipment Repair, Inc. Springfield, Illinois=20 ------=_NextPart_000_002C_01C24DA9.82B05080 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Fred,
    Just found a catalog which has the = sizes=20 listed.
    VW48 is 6-32
    VW50 is 8-32/8-36
    VW52 is 10-32, M4 & M6
    VW54 is 1/4-20 & = 1/4-28
    VW56 is 5/16-18 & M8
    VW58 is 3/8-16 & M10
    VW60 is 1/2-13 & M12
     
    and I don't think we need to go larger = than=20 that.
     
    Rich Kimball
    Acceletronics Midwest, = Inc.
     
    ----- Original Message -----
    From:=20 OER123@aol.com
    To: linac-eng@plato.aristotle.n= et=20
    Sent: Monday, August 26, 2002 = 12:47=20 PM
    Subject: Vlier Spring = Plunger

    Does anyone know of a metal = type tool to=20 remove the Vlier Spring Plunger?  I have used the plastic type in = the=20 past and they seem to break easily.  I tried to contact Bay = Cities Tool=20 & Supply (listed on the Tech Tip) and the phone number is no = longer=20 valid.

    I cannot get vice-scrips on the plunger front because it = is on a=20 XIM accessory mount.  Additionally, the allen head is rounded out = on the=20 backside of the spring plunger.

    Thanks.
    Fred Williams
    Oncology = Equipment Repair,=20 Inc.
    Springfield, Illinois     =     ------=_NextPart_000_002C_01C24DA9.82B05080-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 17:43:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jiVR-0005lx-00; Tue, 27 Aug 2002 17:43:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8650E1112F9; Tue, 27 Aug 2002 17:29:48 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA23681 for linac-eng-list; Tue, 27 Aug 2002 10:05:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA23675 for ; Tue, 27 Aug 2002 10:05:05 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Tue, 27 Aug 2002 11:04:33 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F002@phsexch6.partners.org> From: "Maddox, Buford J" To: "'kim yeung'" , linac-eng Subject: RE: dose rate control :Kly I or Gun console mode ? Date: Tue, 27 Aug 2002 11:04:25 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C24DDB.08371780" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'kim yeung'" , linac-eng Subject: RE: dose rate control :Kly I or Gun console mode ? Date: Tue, 27 Aug 2002 11:04:25 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C24DDB.08371780 Content-Type: text/plain; charset="iso-8859-1" Just a few comments on Radiation Safety, prompted by the "unexpected beam" incident here. The ACC solenoid focuses the beam to overcome electrons normal repulsion of each other. It may also slightly steer the beam if the beam is not centered. Also, it is always possible to have some electrons in the vacuum and accelerate a few, even with the gun off. And an accelerator works the same in the reverse direction, so if some beam hits the Bmag wall, some electrons will be accelerated back to the gun. Closing the Jaws doesn't help this! If you go in the room with RF on, taking the normal precautions, you still should measure the radiation. I hope this will stir up a general discussion of the Radiation hazards inside the room, as there are many more, such as high energy targets, Klystrons, thyratrons, etc. It would be interesting to hear what levels people have found in various areas. Don't have the answer to KIM's question, just got my old Radiation Safety Officer hat on, from 12 years of wearing it at a research machine. And I believe in passing on information, especially to those newer to this field. This site is great for that! Jerry -----Original Message----- From: kim yeung [mailto:kimyeung@netvigator.com] Sent: Tuesday, August 27, 2002 8:32 AM To: linac-eng Subject: dose rate control :Kly I or Gun console mode ? Hi Colleagues, Varian 2300CD (T-drive) version 6.1 We had an incident of acc. solenoid power supply fault, the linac did not produce any output and it seemed the linac was under gun console mode (in clinical mode!). As we reduced the console gun delay the linac could produce some output. Could anyone advise how does the clinac switch into "gun console mode"? Best regards, Kim Yeung ------_=_NextPart_001_01C24DDB.08371780 Content-Type: text/html; charset="iso-8859-1"
    Just a few comments on Radiation Safety, prompted by the "unexpected beam" incident here. 
     
     The ACC solenoid focuses the beam to overcome electrons normal repulsion of each other.  It may also slightly steer the beam if the beam is not centered.  Also, it is always possible to have some electrons in the vacuum and accelerate a few, even with the gun off.  And an accelerator works the same in the reverse direction, so if some beam hits the Bmag wall, some electrons will be accelerated back to the gun.  Closing the Jaws doesn't help this!
     
    If you go in the room with RF on, taking the normal precautions, you still should measure the radiation.  I hope this will stir up a general discussion of the Radiation hazards inside the room, as there are many more, such as high energy targets, Klystrons, thyratrons, etc.  It would be interesting to hear what levels people have found in various areas.  
     
    Don't have the answer to KIM's question, just got my old Radiation Safety Officer hat on, from 12 years of wearing it at a research machine.  And I believe in passing on information, especially to those newer to this field.  This site is great for that!
     
    Jerry   
    -----Original Message-----
    From: kim yeung [mailto:kimyeung@netvigator.com]
    Sent: Tuesday, August 27, 2002 8:32 AM
    To: linac-eng
    Subject: dose rate control :Kly I or Gun console mode ?

    Hi Colleagues,
     
            Varian 2300CD (T-drive) version 6.1
     
    We had an incident of acc. solenoid power supply fault,  the linac did not produce any output and it seemed the linac was under gun console mode (in clinical mode!). As we reduced the console gun delay the linac could produce some output.
     
    Could anyone advise how does the clinac switch into "gun console mode"?
     
    Best regards,
     
    Kim Yeung
    ------_=_NextPart_001_01C24DDB.08371780-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 18:31:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jjFl-0005sz-00; Tue, 27 Aug 2002 18:31:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 832321112F1; Tue, 27 Aug 2002 18:17:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA25160 for linac-eng-list; Tue, 27 Aug 2002 10:54:21 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA25156 for ; Tue, 27 Aug 2002 10:54:20 -0500 (CDT) Received: from 159.139.152.113 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Tue, 27 Aug 2002 10:44:31 -0500 Received: by corpexcon02.corp.medcity.net with Internet Mail Service (5.5.2653.19) id ; Tue, 27 Aug 2002 10:37:25 -0500 Message-ID: <39A90AC123CB9D428821E2BC273E73CD0189A664@ftwex03.ftw.medcity.net> From: Barrett Marc To: linac-eng@plato.aristotle.net Subject: Humor, Take II Date: Tue, 27 Aug 2002 10:39:32 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Barrett Marc To: linac-eng@plato.aristotle.net Subject: Humor, Take II Date: Tue, 27 Aug 2002 10:39:32 -0500 Sender: owner-linac-eng@plato.aristotle.net If you never do business with a company, you won't have to worry about "hurtin' their rep'" and having them "sue you if you criticize them and make them feel bad" P.S. I'd better be on the lookout for the Varian Corporate lawyers, yesterday I told their service department that "I was not happy with their lack of response to my repeated calls." Was I out of my mind?,..."Varian, if you're listening, I Love Big Brother!... don't sue me!" P.P.S This is only the ranting of a deranged physicist who acts alone and without the written consent or knowledge of his employer, employees, mother, brother und anderen Schweinhunden. Marc R. Barrett Radiation Physicist, RSO, Director Rapides Cancer Center The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer or storage device. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 18:31:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jjFl-0005t2-00; Tue, 27 Aug 2002 18:31:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F07501112F9; Tue, 27 Aug 2002 18:17:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA25178 for linac-eng-list; Tue, 27 Aug 2002 10:55:45 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA25174 for ; Tue, 27 Aug 2002 10:55:44 -0500 (CDT) Received: from 159.139.152.113 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Tue, 27 Aug 2002 10:57:35 -0500 Received: by corpexcon02.corp.medcity.net with Internet Mail Service (5.5.2653.19) id ; Tue, 27 Aug 2002 10:50:28 -0500 Message-ID: <39A90AC123CB9D428821E2BC273E73CD0189A665@ftwex03.ftw.medcity.net> From: Barrett Marc To: linac-eng@plato.aristotle.net Subject: Humor, Take II..A Retraction Date: Tue, 27 Aug 2002 10:52:38 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Barrett Marc To: linac-eng@plato.aristotle.net Subject: Humor, Take II..A Retraction Date: Tue, 27 Aug 2002 10:52:38 -0500 Sender: owner-linac-eng@plato.aristotle.net "Statement, I retract thee" No hard feelings, eh? Marc R. Barrett Radiation Physicist, RSO, Director Rapides Cancer Center The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer or storage device. 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 18:53:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jjar-0005xI-00; Tue, 27 Aug 2002 18:53:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8A3D71112F1; Tue, 27 Aug 2002 18:39:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA25667 for linac-eng-list; Tue, 27 Aug 2002 11:19:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f101.law4.hotmail.com [216.33.149.101]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA25663 for ; Tue, 27 Aug 2002 11:19:13 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 27 Aug 2002 09:18:32 -0700 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Tue, 27 Aug 2002 16:18:31 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: Re: lack of emails lately Date: Tue, 27 Aug 2002 16:18:31 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 27 Aug 2002 16:18:32.0273 (UTC) FILETIME=[62F2E410:01C24DE5] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: Re: lack of emails lately Date: Tue, 27 Aug 2002 16:18:31 +0000 X-OriginalArrivalTime: 27 Aug 2002 16:18:32.0273 (UTC) FILETIME=[62F2E410:01C24DE5] Sender: owner-linac-eng@plato.aristotle.net To all the may be left, all 1/2 dozen of so Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content that concerns Linac issues, I have to wade through 50 to 60 that contain such grap as penis enlargement, suzy's wet pussy and other such crap. There has been a mass exodus from this list serve because of it. Really, somebody could loose their job by accidently opening such crapola Maybe me sure reconsider this issue again, or start another list serve where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! Unfortunatly, there probaly is nobody left to read this email who really gives a shit any more PS, We should rename the list serve Linac smutt board.........Lets take a vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie >From: Rtsolution@aol.com >To: linac-eng@plato.aristotle.net >Subject: lack of emails lately >Date: Tue, 27 Aug 2002 10:08:14 EDT > >I recently received very few emails. Could anyone tell me if I need to >register again or do something in order to get emails > > >Thanks in advance David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 19:36:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jkGI-0005ze-00; Tue, 27 Aug 2002 19:36:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A027E1112F1; Tue, 27 Aug 2002 19:22:18 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA27884 for linac-eng-list; Tue, 27 Aug 2002 12:08:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA27880 for ; Tue, 27 Aug 2002 12:08:48 -0500 (CDT) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA20362; Tue, 27 Aug 2002 12:04:53 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C22.005D9A22 ; Tue, 27 Aug 2002 12:02:23 -0500 X-Lotus-FromDomain: MDACC To: "David Price" Cc: linac-eng@plato.aristotle.net Message-ID: <86256C22.005D98B1.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 27 Aug 2002 12:04:23 -0500 Subject: Re: lack of emails lately Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "David Price" Cc: linac-eng@plato.aristotle.net Date: Tue, 27 Aug 2002 12:04:23 -0500 Subject: Re: lack of emails lately Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net David, Your email is by far the worst thing I've received from the list server in many months. If you're receiving so much SPAM, it's not from the list server! Please keep in mind for future posts that not everyone on this list appreciates the vulgar language you choose to send out. You could also get a lot of unsuspecting people in trouble with their employers for the language you used in your email. I'm sure that my employer flagged your email, and I wish that they had simply filtered it out. I don't suscribe to this list to have to read your kind of trash, so keep it to yourself. Chad "David Price" on 08/27/2002 11:18:31 AM To: Rtsolution@aol.com, linac-eng@plato.aristotle.net cc: (bcc: Chad L. Fikes/MDACC) Subject: Re: lack of emails lately To all the may be left, all 1/2 dozen of so Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content that concerns Linac issues, I have to wade through 50 to 60 that contain such grap as penis enlargement, suzy's wet pussy and other such crap. There has been a mass exodus from this list serve because of it. Really, somebody could loose their job by accidently opening such crapola Maybe me sure reconsider this issue again, or start another list serve where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! Unfortunatly, there probaly is nobody left to read this email who really gives a shit any more PS, We should rename the list serve Linac smutt board.........Lets take a vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie >From: Rtsolution@aol.com >To: linac-eng@plato.aristotle.net >Subject: lack of emails lately >Date: Tue, 27 Aug 2002 10:08:14 EDT > >I recently received very few emails. Could anyone tell me if I need to >register again or do something in order to get emails > > >Thanks in advance David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world?s largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 19:42:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jkMU-000604-00; Tue, 27 Aug 2002 19:42:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F21051112F1; Tue, 27 Aug 2002 19:28:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA27974 for linac-eng-list; Tue, 27 Aug 2002 12:14:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA27970 for ; Tue, 27 Aug 2002 12:14:36 -0500 (CDT) Received: from neried.scf.sk.ca (neried.scf.sk.ca [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 27 Aug 2002 11:15:59 -0600 Received: (from RPC035 [172.24.49.35]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002082711140213729 ; Tue, 27 Aug 2002 11:14:02 -0600 From: scot thiesson To: Rtsolution@aol.com, linac-eng@plato.aristotle.net, "David Price" Date: Tue, 27 Aug 2002 11:13:35 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: Subject: Re: lack of emails lately MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: Rtsolution@aol.com, linac-eng@plato.aristotle.net, "David Price" Date: Tue, 27 Aug 2002 11:13:35 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: lack of emails lately Sender: owner-linac-eng@plato.aristotle.net I think spam is a fact of life these days. Personally I deal with it by activating filters in my email application that dump these things directly to my trash bin. Unread and unopened, I delete them. No fuss no muss no worries mate! If your email application doesn't have filters you can download a number of free packages that have the capability built in. My favorite is the Opera browser and mail app available at http://www.opera.com/index.html Did I mention it was free free free??? J Later linac dudes! Scot 8/27/2002 10:18:31 AM, "David Price" wrote: > >To all the may be left, all 1/2 dozen of so > >Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content >that concerns Linac issues, I have to wade through 50 to 60 that contain >such grap as penis enlargement, suzy's wet pussy and other such crap. There >has been a mass exodus from this list serve because of it. Really, somebody >could loose their job by accidently opening such crapola > >Maybe me sure reconsider this issue again, or start another list serve >where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! > >Unfortunatly, there probaly is nobody left to read this email who really >gives a shit any more > >PS, We should rename the list serve Linac smutt board.........Lets take a >vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > > >David Price >SHands Cancer Center >2000 SW archer Rd >Gainesville Fla, 32610 >W 352-395-0316 > >Opinions expressed here are entirely my own and do not constitute any >affirmation from my employer, the University of Florida, or my pet gerbil, >Herbie > > > > >>From: Rtsolution@aol.com >>To: linac-eng@plato.aristotle.net >>Subject: lack of emails lately >>Date: Tue, 27 Aug 2002 10:08:14 EDT >> >>I recently received very few emails. Could anyone tell me if I need to >>register again or do something in order to get emails >> >> >>Thanks in advance > > > > >David Price >SHands Cancer Center >2000 SW archer Rd >Gainesville Fla, 32610 >W 352-395-0316 > >Opinions expressed here are entirely my own and do not constitute any >affirmation from my employer, the University of Florida, or my pet gerbil, >Herbie > >"Linac Engineers List Server (E-mail)" >Linac-eng@plato.aristotle.net >Linac-eng@plato.aristotle.net > > > >_________________________________________________________________ >Join the world's largest e-mail service with MSN Hotmail. >http://www.hotmail.com > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 19:43:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jkNJ-00060G-00; Tue, 27 Aug 2002 19:43:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 29F171112F1; Tue, 27 Aug 2002 19:29:34 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA28041 for linac-eng-list; Tue, 27 Aug 2002 12:16:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from exchange.accuray.com (exchange.accuray.com [65.219.160.162]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA28036 for ; Tue, 27 Aug 2002 12:16:37 -0500 (CDT) content-class: urn:content-classes:message Subject: RE: dose rate control :Kly I or Gun console mode ? MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C24DED.7F4FF690" Date: Tue, 27 Aug 2002 10:16:35 -0700 Message-ID: <634284F16B42C249B642E5AB43FD720B13C141@exchange.accuray.com> X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Thread-Topic: dose rate control :Kly I or Gun console mode ? Thread-Index: AcJN6okm51mWFRvtQcyMS8JW2C3cpgAALLTg From: "John Somers" To: "Maddox, Buford J" , "linac-eng" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Subject: RE: dose rate control :Kly I or Gun console mode ? Date: Tue, 27 Aug 2002 10:16:35 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Thread-Topic: dose rate control :Kly I or Gun console mode ? Thread-Index: AcJN6okm51mWFRvtQcyMS8JW2C3cpgAALLTg From: "John Somers" To: "Maddox, Buford J" , "linac-eng" Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C24DED.7F4FF690 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks to Jerry for thinking of the radiation safety issues and = providing some very helpful information. =20 Here's just one addition for the sake of understanding -- It is true = as Jerry said that the standing wave accelerator guides (Varian, = Siemens) work essentially the same forward as well as reverse in terms = of accelerating available electrons. This is not the case in travelling = wave accelerators, i.e., Philips/Elekta machines.=20 =20 Note that this fact does not change the precautions you should use. = With any of these linacs, if you go in the room with high voltage = switching and RF on, you should first disable the gun, close the jaws = and measure the radiation. Measure where you will be working, and don't = put any part of yourself in any hot spots. =20 =20 John Somers =20 -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, August 27, 2002 8:04 AM To: 'kim yeung'; linac-eng Subject: RE: dose rate control :Kly I or Gun console mode ? Just a few comments on Radiation Safety, prompted by the "unexpected = beam" incident here.=20 =20 ............. And an accelerator works the same in the reverse = direction, so if some beam hits the Bmag wall, some electrons will be = accelerated back to the gun. Closing the Jaws doesn't help this! =20 Jerry =20 =20 ------_=_NextPart_001_01C24DED.7F4FF690 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Thanks=20 to Jerry for thinking of the radiation safety issues and providing some = very=20 helpful information.
     
     =20 Here's just one addition for the sake of understanding -- It is true as = Jerry=20 said that the standing wave accelerator guides (Varian, Siemens) work=20 essentially the same forward as well as reverse in terms of accelerating = available electrons.  This is not the case in travelling wave = accelerators,=20 i.e., Philips/Elekta machines.
     
        Note that this fact does = not change=20 the precautions you should use.  With any of these linacs, if you = go in the=20 room with high voltage switching and RF on, you should first = disable the=20 gun, close the jaws and measure the radiation.  Measure where = you will=20 be working, and don't put any part of yourself in any hot spots. =20
     
        John = Somers
     
    -----Original Message-----
    From: Maddox, Buford J=20 [mailto:JMADDOX@LROC.HARVARD.EDU]
    Sent: Tuesday, August 27, = 2002=20 8:04 AM
    To: 'kim yeung'; linac-eng
    Subject: RE: = dose rate=20 control :Kly I or Gun console mode ?

    Just=20 a few comments on Radiation Safety, prompted by the "unexpected beam" = incident=20 here. 
     
     ............. And an=20 accelerator works the same in the reverse direction, so if some beam = hits the=20 Bmag wall, some electrons will be accelerated back to the gun.  = Closing=20 the Jaws doesn't help this!
     
    Jerry   
     
    ------_=_NextPart_001_01C24DED.7F4FF690-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 19:57:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jkaw-000619-00; Tue, 27 Aug 2002 19:57:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7F6D91112F1; Tue, 27 Aug 2002 19:43:38 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA28608 for linac-eng-list; Tue, 27 Aug 2002 12:34:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f132.law4.hotmail.com [216.33.149.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA28604 for ; Tue, 27 Aug 2002 12:34:05 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 27 Aug 2002 10:33:33 -0700 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Tue, 27 Aug 2002 17:33:33 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: clfikes@mail.mdanderson.org Cc: linac-eng@plato.aristotle.net Subject: Re: lack of emails lately Date: Tue, 27 Aug 2002 17:33:33 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 27 Aug 2002 17:33:33.0781 (UTC) FILETIME=[DE0E8050:01C24DEF] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: clfikes@mail.mdanderson.org Cc: linac-eng@plato.aristotle.net Subject: Re: lack of emails lately Date: Tue, 27 Aug 2002 17:33:33 +0000 X-OriginalArrivalTime: 27 Aug 2002 17:33:33.0781 (UTC) FILETIME=[DE0E8050:01C24DEF] Sender: owner-linac-eng@plato.aristotle.net Dear chad unfortunalty that is only a mere sample of what I put up with on this account. I had to clear 50 message today before I got to that query, and that is a almost daily core to read what I might consider content worth reading. This Email account is used only for this one list serve, One on many I have to seperate my interest. This one account gets hit all the time with so much more spam its unbeleivable. I spend 3/4's of my time just deleting smutt spam, just to find the 3 to 4 messages a day that accuatly appear here any more. you might try counting the unsubsrcibes in the last 6-9 months before you answer >From: clfikes@mail.mdanderson.org >To: "David Price" >CC: linac-eng@plato.aristotle.net >Subject: Re: lack of emails lately >Date: Tue, 27 Aug 2002 12:04:23 -0500 > > > >David, > >Your email is by far the worst thing I've received from the list server in >many >months. >If you're receiving so much SPAM, it's not from the list server! >Please keep in mind for future posts that not everyone on this list >appreciates >the vulgar language >you choose to send out. You could also get a lot of unsuspecting people in >trouble with their >employers for the language you used in your email. I'm sure that my >employer >flagged your email, >and I wish that they had simply filtered it out. I don't suscribe to this >list >to have to read your >kind of trash, so keep it to yourself. > >Chad > > > > > >"David Price" on 08/27/2002 11:18:31 AM > >To: Rtsolution@aol.com, linac-eng@plato.aristotle.net >cc: (bcc: Chad L. Fikes/MDACC) > >Subject: Re: lack of emails lately > > > > >To all the may be left, all 1/2 dozen of so > >Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content >that concerns Linac issues, I have to wade through 50 to 60 that contain >such grap as penis enlargement, suzy's wet pussy and other such crap. There >has been a mass exodus from this list serve because of it. Really, somebody >could loose their job by accidently opening such crapola > >Maybe me sure reconsider this issue again, or start another list serve >where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! > >Unfortunatly, there probaly is nobody left to read this email who really >gives a shit any more > >PS, We should rename the list serve Linac smutt board.........Lets take a >vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > > >David Price >SHands Cancer Center >2000 SW archer Rd >Gainesville Fla, 32610 >W 352-395-0316 > >Opinions expressed here are entirely my own and do not constitute any >affirmation from my employer, the University of Florida, or my pet gerbil, >Herbie > > > > > >From: Rtsolution@aol.com > >To: linac-eng@plato.aristotle.net > >Subject: lack of emails lately > >Date: Tue, 27 Aug 2002 10:08:14 EDT > > > >I recently received very few emails. Could anyone tell me if I need to > >register again or do something in order to get emails > > > > > >Thanks in advance > > > > >David Price >SHands Cancer Center >2000 SW archer Rd >Gainesville Fla, 32610 >W 352-395-0316 > >Opinions expressed here are entirely my own and do not constitute any >affirmation from my employer, the University of Florida, or my pet gerbil, >Herbie > >"Linac Engineers List Server (E-mail)" >Linac-eng@plato.aristotle.net >Linac-eng@plato.aristotle.net > > > >_________________________________________________________________ >Join the world?s largest e-mail service with MSN Hotmail. >http://www.hotmail.com David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 19:57:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jkb2-00061E-00; Tue, 27 Aug 2002 19:57:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C5D041112F1; Tue, 27 Aug 2002 19:43:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA28559 for linac-eng-list; Tue, 27 Aug 2002 12:33:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA28553 for ; Tue, 27 Aug 2002 12:33:02 -0500 (CDT) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA26431; Tue, 27 Aug 2002 12:29:19 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C22.005FD568 ; Tue, 27 Aug 2002 12:26:45 -0500 X-Lotus-FromDomain: MDACC To: "David Price" Cc: linac-eng@plato.aristotle.net Message-ID: <86256C22.005FD467.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 27 Aug 2002 12:29:34 -0500 Subject: Re: lack of emails lately and SPAM Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "David Price" Cc: linac-eng@plato.aristotle.net Date: Tue, 27 Aug 2002 12:29:34 -0500 Subject: Re: lack of emails lately and SPAM Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net David, At the risk of offending any corperate CEOs, I think I know what your email problem is... your Hotmail address. I too have a Hotmail address for other reasons and my junk mail folder fills with tons of the crap you mentioned along with offers to help my motrgage,buying a university degree, copying CDs and enough "free" vacations to Florida to last a lifetime. MSN (or someone) must make a fortune selling the addresses. My address from work is on the linac list and besides the few episodes with Lisa or whoever a few months back, I haven't seen any SPAM. Have a good day, eh. Ed Rymes Acc Tech III M.D. Anderson Cancer Center Houston, Texas These are strictly my opinions of course. "David Price" on 08/27/2002 11:18:31 AM To: Rtsolution@aol.com, linac-eng@plato.aristotle.net cc: (bcc: Edward Rymes/MDACC) Subject: Re: lack of emails lately To all the may be left, all 1/2 dozen of so Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content that concerns Linac issues, I have to wade through 50 to 60 that contain such grap as penis enlargement, suzy's wet pussy and other such crap. There has been a mass exodus from this list serve because of it. Really, somebody could loose their job by accidently opening such crapola Maybe me sure reconsider this issue again, or start another list serve where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! Unfortunatly, there probaly is nobody left to read this email who really gives a shit any more PS, We should rename the list serve Linac smutt board.........Lets take a vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie >From: Rtsolution@aol.com >To: linac-eng@plato.aristotle.net >Subject: lack of emails lately >Date: Tue, 27 Aug 2002 10:08:14 EDT > >I recently received very few emails. Could anyone tell me if I need to >register again or do something in order to get emails > > >Thanks in advance David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world?s largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 20:00:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jkdJ-00061k-00; Tue, 27 Aug 2002 20:00:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C8B3C1112F1; Tue, 27 Aug 2002 19:46:05 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA28269 for linac-eng-list; Tue, 27 Aug 2002 12:25:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA28265 for ; Tue, 27 Aug 2002 12:25:44 -0500 (CDT) Received: from neried.scf.sk.ca (neried.scf.sk.ca [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 27 Aug 2002 11:28:05 -0600 Received: (from spc164 [172.24.56.164]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002082711260818581 ; Tue, 27 Aug 2002 11:26:08 -0600 From: "Chris Barnardo" To: "'David Price'" , "Linac-Engineers, Listserver (E-mail)" Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 11:26:19 -0600 Message-ID: <000001c24dee$dbc9dcf0$a43818ac@scadomain.local> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0001_01C24DBC.9131B6E0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Barnardo" To: "'David Price'" , "Linac-Engineers, Listserver (E-mail)" Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 11:26:19 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C24DBC.9131B6E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Hi Group: I don't seem to be getting an SPAM these days, so maybee you are getting the Spam from somewere else other than the Linac List server. Good luck finding the source. Chris Barnardo Physics Tech Saskatoon Cancer Centre 20 Campus Drive Saskatoon, Sk Canada S7N 4H4 Ph: (306) 655-2699 Fax: (306) 655-2701 e-mail: cbarnardo@scf.sk.ca -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of David Price Sent: Tuesday, August 27, 2002 10:19 AM To: Rtsolution@aol.com; linac-eng@plato.aristotle.net Subject: Re: lack of emails lately To all the may be left, all 1/2 dozen of so Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content that concerns Linac issues, I have to wade through 50 to 60 that contain such grap as penis enlargement, suzy's wet pussy and other such crap. There has been a mass exodus from this list serve because of it. Really, somebody could loose their job by accidently opening such crapola Maybe me sure reconsider this issue again, or start another list serve where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! Unfortunatly, there probaly is nobody left to read this email who really gives a shit any more PS, We should rename the list serve Linac smutt board.........Lets take a vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie >From: Rtsolution@aol.com >To: linac-eng@plato.aristotle.net >Subject: lack of emails lately >Date: Tue, 27 Aug 2002 10:08:14 EDT > >I recently received very few emails. Could anyone tell me if I need to >register again or do something in order to get emails > > >Thanks in advance David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com ------=_NextPart_000_0001_01C24DBC.9131B6E0 Content-Type: text/x-vcard; name="Barnardo Chris (E-mail).vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Barnardo Chris (E-mail).vcf" BEGIN:VCARD VERSION:2.1 N:Chris;Barnardo FN:Barnardo Chris (E-mail) EMAIL;PREF;INTERNET:cbarnardo@scf.sk.ca REV:20020812T185719Z END:VCARD ------=_NextPart_000_0001_01C24DBC.9131B6E0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 20:22:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jkys-00062y-00; Tue, 27 Aug 2002 20:22:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9606C1112F1; Tue, 27 Aug 2002 20:08:18 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA29482 for linac-eng-list; Tue, 27 Aug 2002 12:50:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f135.law4.hotmail.com [216.33.149.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA29478 for ; Tue, 27 Aug 2002 12:50:36 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 27 Aug 2002 10:50:04 -0700 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Tue, 27 Aug 2002 17:50:04 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: erymes@mail.mdanderson.org Cc: linac-eng@plato.aristotle.net Subject: Re: lack of emails lately and SPAM Date: Tue, 27 Aug 2002 17:50:04 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 27 Aug 2002 17:50:04.0914 (UTC) FILETIME=[2CD16520:01C24DF2] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: erymes@mail.mdanderson.org Cc: linac-eng@plato.aristotle.net Subject: Re: lack of emails lately and SPAM Date: Tue, 27 Aug 2002 17:50:04 +0000 X-OriginalArrivalTime: 27 Aug 2002 17:50:04.0914 (UTC) FILETIME=[2CD16520:01C24DF2] Sender: owner-linac-eng@plato.aristotle.net Thanks If only I could just get my junk folder to fill, I would be satified with that,,,,unfortunaly I dont think the filters work so hot, but maybe I will try subscribing from a private address just to check that thought out. run a test. It has seemed to have gotton worse, and it's not like this email address is used anywhere else but on this list serve. What generaly happens is you subscribe to a public news group and the are picked up that way, by email sifters, or just a brute force spam attackes, using every combination. But in this case I only use this email for the place,, so somehow its being picked up David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net >From: erymes@mail.mdanderson.org >To: "David Price" >CC: linac-eng@plato.aristotle.net >Subject: Re: lack of emails lately and SPAM >Date: Tue, 27 Aug 2002 12:29:34 -0500 > > > >David, > At the risk of offending any corperate CEOs, I think I know what your >email >problem is... your Hotmail address. I too have a Hotmail address for other >reasons and my junk mail folder fills with tons of the crap you mentioned >along >with offers to help my motrgage,buying a university degree, copying CDs and >enough "free" vacations to Florida to last a lifetime. MSN (or someone) >must >make a fortune selling the addresses. My address from work is on the linac >list >and besides the few episodes with Lisa or whoever a few months back, I >haven't >seen any SPAM. Have a good day, eh. > >Ed Rymes >Acc Tech III >M.D. Anderson Cancer Center >Houston, Texas > > >These are strictly my opinions of course. > > > > > > >"David Price" on 08/27/2002 11:18:31 AM > >To: Rtsolution@aol.com, linac-eng@plato.aristotle.net >cc: (bcc: Edward Rymes/MDACC) > >Subject: Re: lack of emails lately > > > > >To all the may be left, all 1/2 dozen of so > >Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content >that concerns Linac issues, I have to wade through 50 to 60 that contain >such grap as penis enlargement, suzy's wet pussy and other such crap. There >has been a mass exodus from this list serve because of it. Really, somebody >could loose their job by accidently opening such crapola > >Maybe me sure reconsider this issue again, or start another list serve >where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! > >Unfortunatly, there probaly is nobody left to read this email who really >gives a shit any more > >PS, We should rename the list serve Linac smutt board.........Lets take a >vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 20:40:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jlGi-00064K-00; Tue, 27 Aug 2002 20:40:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 58EA31112F1; Tue, 27 Aug 2002 20:26:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA00813 for linac-eng-list; Tue, 27 Aug 2002 13:10:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hera.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA00809 for ; Tue, 27 Aug 2002 13:10:53 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H1I0BR8XL5TTD@email.med.yale.edu> for linac-eng@plato.aristotle.net; Tue, 27 Aug 2002 14:10:42 -0400 (EDT) Date: Tue, 27 Aug 2002 14:15:57 -0400 From: "Peter E. Vitali" Subject: Re: lack of emails lately To: David Price Cc: Rtsolution@aol.com, linac-eng@plato.aristotle.net Message-id: <3D6BBF9B.36A3B594@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 27 Aug 2002 14:15:57 -0400 From: "Peter E. Vitali" Subject: Re: lack of emails lately To: David Price Cc: Rtsolution@aol.com, linac-eng@plato.aristotle.net X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Dave: I am on a University E-Mail system and once the Linac List Server went to sending only messages from subscribers I have not had any spam. I do not have any filter activated on my computer. Prior to the Linac List server changing to subscriber messages only I did receive a lot of spam. Maybe yours is coming from aol.com? There is software out there to clean up spam. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 20:45:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jlLW-00064i-00; Tue, 27 Aug 2002 20:45:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD21B1112F1; Tue, 27 Aug 2002 20:31:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA01420 for linac-eng-list; Tue, 27 Aug 2002 13:21:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta7.pltn13.pbi.net (mta7.pltn13.pbi.net [64.164.98.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA01401 for ; Tue, 27 Aug 2002 13:21:23 -0500 (CDT) Received: from hostdsl ([63.206.141.243]) by mta7.pltn13.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with SMTP id <0H1I005FCLBDZV@mta7.pltn13.pbi.net> for linac-eng@plato.aristotle.net; Tue, 27 Aug 2002 11:14:28 -0700 (PDT) Date: Tue, 27 Aug 2002 11:14:25 -0700 From: Norman Kessler Subject: Inappropriate attack In-reply-to: <86256C22.005D98B1.00@utm-notesob1.mdacc.tmc.edu> To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 27 Aug 2002 11:14:25 -0700 From: Norman Kessler Subject: Inappropriate attack In-reply-to: <86256C22.005D98B1.00@utm-notesob1.mdacc.tmc.edu> To: linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Dear David Price, I can confirm what Chad had to say. I have NOT received any spam or undesirable e-mail, except from you. I suspect your problem is with Rtsolution@aol.com. I personally wouldn't go near any aol connected site. They are the "crackers" (not hackers) favorite target. It is unfortunate that you have stooped to the level of the people you are complaining about. I hope you will refrain from further attacks of this nature. If you have any intestinal fortitude you should apologize to the members of this list server. Sincerely, Norm Kessler 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 20:45:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jlLW-00064j-00; Tue, 27 Aug 2002 20:45:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0EA7F1112F9; Tue, 27 Aug 2002 20:31:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA00950 for linac-eng-list; Tue, 27 Aug 2002 13:13:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA00944 for ; Tue, 27 Aug 2002 13:13:44 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2655.55) id ; Tue, 27 Aug 2002 13:18:12 -0500 Message-ID: From: "Turner, Guy" To: "'David Price'" , Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 13:18:10 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'David Price'" , Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 13:18:10 -0500 Sender: owner-linac-eng@plato.aristotle.net Dude, The most obscene e-mail I have ever received from this list was yours. I don't know what you are doing with your PC but I have been with this list from the beginning and I don't see any of what you are talking about. For that matter I seem to remember that we were informed by the list administrator that steps had been taken to limit spam to the extent possible. Do us all a favor and unsubscribe yourself. As far as I can tell you don't even belong on the list anyway. -----Original Message----- From: David Price [mailto:roast_em@hotmail.com] Sent: Tuesday, August 27, 2002 11:19 AM To: Rtsolution@aol.com; linac-eng@plato.aristotle.net Subject: Re: lack of emails lately To all the may be left, all 1/2 dozen of so Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content that concerns Linac issues, I have to wade through 50 to 60 that contain such grap as penis enlargement, suzy's wet pussy and other such crap. There has been a mass exodus from this list serve because of it. Really, somebody could loose their job by accidently opening such crapola Maybe me sure reconsider this issue again, or start another list serve where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! Unfortunatly, there probaly is nobody left to read this email who really gives a shit any more PS, We should rename the list serve Linac smutt board.........Lets take a vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie >From: Rtsolution@aol.com >To: linac-eng@plato.aristotle.net >Subject: lack of emails lately >Date: Tue, 27 Aug 2002 10:08:14 EDT > >I recently received very few emails. Could anyone tell me if I need to >register again or do something in order to get emails > > >Thanks in advance David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 21:02:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jlbF-00065f-00; Tue, 27 Aug 2002 21:02:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 846B01112F1; Tue, 27 Aug 2002 20:48:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA02334 for linac-eng-list; Tue, 27 Aug 2002 13:36:34 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA02330 for ; Tue, 27 Aug 2002 13:36:32 -0500 (CDT) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2650.21) id ; Tue, 27 Aug 2002 14:35:56 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F004@phsexch6.partners.org> From: "Maddox, Buford J" To: "'David Price'" , Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 14:35:55 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'David Price'" , Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 14:35:55 -0400 Sender: owner-linac-eng@plato.aristotle.net I am not recieving any spam. Congratulations to our IS dept? > -----Original Message----- > From: David Price [SMTP:roast_em@hotmail.com] > Sent: Tuesday, August 27, 2002 12:19 PM > To: Rtsolution@aol.com; linac-eng@plato.aristotle.net > Subject: Re: lack of emails lately > > > To all the may be left, all 1/2 dozen of so > > Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content > that concerns Linac issues, I have to wade through 50 to 60 that contain > such grap as penis enlargement, suzy's wet pussy and other such crap. There > has been a mass exodus from this list serve because of it. Really, somebody > could loose their job by accidently opening such crapola > > Maybe me sure reconsider this issue again, or start another list serve > where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! > > Unfortunatly, there probaly is nobody left to read this email who really > gives a shit any more > > PS, We should rename the list serve Linac smutt board.........Lets take a > vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > > > David Price > SHands Cancer Center > 2000 SW archer Rd > Gainesville Fla, 32610 > W 352-395-0316 > > Opinions expressed here are entirely my own and do not constitute any > affirmation from my employer, the University of Florida, or my pet gerbil, > Herbie > > > > > >From: Rtsolution@aol.com > >To: linac-eng@plato.aristotle.net > >Subject: lack of emails lately > >Date: Tue, 27 Aug 2002 10:08:14 EDT > > > >I recently received very few emails. Could anyone tell me if I need to > >register again or do something in order to get emails > > > > > >Thanks in advance > > > > > David Price > SHands Cancer Center > 2000 SW archer Rd > Gainesville Fla, 32610 > W 352-395-0316 > > Opinions expressed here are entirely my own and do not constitute any > affirmation from my employer, the University of Florida, or my pet gerbil, > Herbie > > "Linac Engineers List Server (E-mail)" > Linac-eng@plato.aristotle.net > Linac-eng@plato.aristotle.net > > > > _________________________________________________________________ > Join the world's largest e-mail service with MSN Hotmail. > http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 21:04:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jldP-00065n-00; Tue, 27 Aug 2002 21:04:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 09D221112F1; Tue, 27 Aug 2002 20:50:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA02585 for linac-eng-list; Tue, 27 Aug 2002 13:41:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA02581 for ; Tue, 27 Aug 2002 13:41:44 -0500 (CDT) Received: from Unknown [192.191.191.250] by mail1.radiological.com - SuperScout Email Filter (4.0); Tuesday, 27 August 2002, 11:44:21 Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Tue, 27 Aug 2002 11:40:18 -0700 Message-ID: From: "Nelson Lacsina" To: , , Cc: Date: Tue, 27 Aug 2002 11:39:52 -0700 Subject: Re: Gammex Fibre optic backpointer RETRACTION, HUMOR MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Mailer: Novell GroupWise Internet Agent 6.0 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA02582 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson Lacsina" To: , , Cc: Date: Tue, 27 Aug 2002 11:39:52 -0700 Subject: Re: Gammex Fibre optic backpointer RETRACTION, HUMOR Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA02582 Sender: owner-linac-eng@plato.aristotle.net CSP who......LAP also sells lasers.....Are they the same company as Gammex RMI? If they are let me know so I can phase out my gammex units...:) Of course the view of this one employee does not in anyway reflect the views of the company for which I work.And any view expressed or implied is my own...Furthermore no malice implied or not implied concerning any company which I may allude to wether known or not known by me is not intended..... Please don't sue me, I'm just a poor Engineer.... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 21:17:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jlqc-00066f-00; Tue, 27 Aug 2002 21:17:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6C7A31112F1; Tue, 27 Aug 2002 21:03:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA03261 for linac-eng-list; Tue, 27 Aug 2002 13:51:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA03257 for ; Tue, 27 Aug 2002 13:51:02 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g7RIp1rF474230 for ; Tue, 27 Aug 2002 14:51:01 -0400 Message-ID: <3D6BC913.4020406@hsc.vcu.edu> Date: Tue, 27 Aug 2002 14:46:43 -0400 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.0) Gecko/20020530 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: Spam Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 27 Aug 2002 14:46:43 -0400 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: "linac-eng@plato.aristotle.net" Subject: Spam Sender: owner-linac-eng@plato.aristotle.net I have not been getting any spam from this list server in awhile now. Chris, 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 22:01:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jmWp-00069M-00; Tue, 27 Aug 2002 22:01:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C1F041112F1; Tue, 27 Aug 2002 21:47:29 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA05201 for linac-eng-list; Tue, 27 Aug 2002 14:24:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA05185 for ; Tue, 27 Aug 2002 14:23:50 -0500 (CDT) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.4905); Tue, 27 Aug 2002 15:24:36 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C24DFF.61004CBD" Subject: MLC question II Date: Tue, 27 Aug 2002 15:24:35 -0400 Message-ID: X-MS-TNEF-Correlator: Thread-Topic: MLC question II Thread-Index: AcJN/z44hAqzGbxmT++NvLSNN8xrlA== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 27 Aug 2002 19:24:36.0177 (UTC) FILETIME=[61277410:01C24DFF] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Subject: MLC question II Date: Tue, 27 Aug 2002 15:24:35 -0400 X-MS-TNEF-Correlator: Thread-Topic: MLC question II Thread-Index: AcJN/z44hAqzGbxmT++NvLSNN8xrlA== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 27 Aug 2002 19:24:36.0177 (UTC) FILETIME=[61277410:01C24DFF] Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C24DFF.61004CBD Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Well we have another problem, now during IMRT's *MLC Hardware COM shows = up and interrupts treatment, at times its with the *Secondary I/L = position, it appears also very quickly as the 'A' side goes into = position. I have cleaned the suspect side, verified all cable = connections, and replaced the combo com card on the controller. I am = nearly at my wits end, does anyone have any clues what could be wrong?? Giuseppe 'Joe' Orsolini RT(T) =20 Service Engineer=20 2002-2004 Cancer Center Employee Council Rep =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) ------_=_NextPart_001_01C24DFF.61004CBD Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 ------_=_NextPart_001_01C24DFF.61004CBD-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 23:00:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jnS2-0006DF-00; Tue, 27 Aug 2002 23:00:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F4EC1112F1; Tue, 27 Aug 2002 22:46:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA07501 for linac-eng-list; Tue, 27 Aug 2002 15:28:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA07497 for ; Tue, 27 Aug 2002 15:28:22 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA18723 for ; Wed, 28 Aug 2002 08:25:50 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 28 Aug 2002 08:30:28 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 28 Aug 2002 08:27:32 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 28 Aug 2002 08:27:19 +1200 From: "Dave Pinchin" To: , Subject: Re: lack of emails lately Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA07498 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 28 Aug 2002 08:27:19 +1200 From: "Dave Pinchin" To: , Subject: Re: lack of emails lately Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA07498 Sender: owner-linac-eng@plato.aristotle.net G'day, Since the antispam laws in US I have not had a single spam. Good work, Batman. :D >>> "David Price" 28/08/02 04:18:31 >>> To all the may be left, all 1/2 dozen of so Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content that concerns Linac issues, I have to wade through 50 to 60 that contain such grap as penis enlargement, suzy's wet pussy and other such crap. There has been a mass exodus from this list serve because of it. Really, somebody could loose their job by accidently opening such crapola Maybe me sure reconsider this issue again, or start another list serve where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! Unfortunatly, there probaly is nobody left to read this email who really gives a shit any more PS, We should rename the list serve Linac smutt board.........Lets take a vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie >From: Rtsolution@aol.com >To: linac-eng@plato.aristotle.net >Subject: lack of emails lately >Date: Tue, 27 Aug 2002 10:08:14 EDT > >I recently received very few emails. Could anyone tell me if I need to >register again or do something in order to get emails > > >Thanks in advance David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 23:00:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jnS2-0006DH-00; Tue, 27 Aug 2002 23:00:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7C3FE1112F9; Tue, 27 Aug 2002 22:46:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA07447 for linac-eng-list; Tue, 27 Aug 2002 15:27:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA07439 for ; Tue, 27 Aug 2002 15:27:04 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id QAA28440; Tue, 27 Aug 2002 16:19:58 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma028239; Tue, 27 Aug 02 16:19:08 -0400 Subject: Linac removal To: linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Tue, 27 Aug 2002 15:26:02 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 08/27/2002 03:26:03 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Linac removal To: linac-eng@plato.aristotle.net Date: Tue, 27 Aug 2002 15:26:02 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 08/27/2002 03:26:03 PM Sender: owner-linac-eng@plato.aristotle.net Good afternoon: I am in need of names for companies that I can contact about rigging out a 600c located on the Gulf Coast I have a couple of names but would appreciate other names.... Please email directly to my address as not to offend and corporate type who may be ommitted...We need a couple of different names and if you would rather contact by phone please feel free to.. Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 23:01:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jnSw-0006DO-00; Tue, 27 Aug 2002 23:01:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 93BC01112F1; Tue, 27 Aug 2002 22:47:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA09217 for linac-eng-list; Tue, 27 Aug 2002 15:37:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA09213 for ; Tue, 27 Aug 2002 15:37:01 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA19355 for ; Wed, 28 Aug 2002 08:34:31 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 28 Aug 2002 08:39:09 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 28 Aug 2002 08:36:13 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 28 Aug 2002 08:36:08 +1200 From: "Dave Pinchin" To: , Subject: Radiation Safety Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA09214 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 28 Aug 2002 08:36:08 +1200 From: "Dave Pinchin" To: , Subject: Radiation Safety Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA09214 Sender: owner-linac-eng@plato.aristotle.net G'day, Attended a very interesting 0.5day seminar on RF radiation safety. Something to also be mindful of on a Linac site. Things like the PFN deck with it's covers off for debug etc. International levels are something like 1mW/m2. I cannot imagine a PFN deck being below this. Of course there are all sorts of factors like frequency which are also taken into account in the formula. Any comments on this line??????? :D >>> "John Somers" 28/08/02 05:16:35 >>> Thanks to Jerry for thinking of the radiation safety issues and providing some very helpful information. Here's just one addition for the sake of understanding -- It is true as Jerry said that the standing wave accelerator guides (Varian, Siemens) work essentially the same forward as well as reverse in terms of accelerating available electrons. This is not the case in travelling wave accelerators, i.e., Philips/Elekta machines. Note that this fact does not change the precautions you should use. With any of these linacs, if you go in the room with high voltage switching and RF on, you should first disable the gun, close the jaws and measure the radiation. Measure where you will be working, and don't put any part of yourself in any hot spots. John Somers -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, August 27, 2002 8:04 AM To: 'kim yeung'; linac-eng Subject: RE: dose rate control :Kly I or Gun console mode ? Just a few comments on Radiation Safety, prompted by the "unexpected beam" incident here. ............. And an accelerator works the same in the reverse direction, so if some beam hits the Bmag wall, some electrons will be accelerated back to the gun. Closing the Jaws doesn't help this! Jerry ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Aug 27 23:35:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jo01-0006FY-00; Tue, 27 Aug 2002 23:35:45 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E628A1112F1; Tue, 27 Aug 2002 23:21:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA11962 for linac-eng-list; Tue, 27 Aug 2002 16:00:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA11957 for ; Tue, 27 Aug 2002 16:00:44 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA21423 for ; Wed, 28 Aug 2002 08:58:13 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 28 Aug 2002 09:02:51 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 28 Aug 2002 08:59:56 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 28 Aug 2002 08:59:47 +1200 From: "Dave Pinchin" To: , Subject: Re: MLC question II Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA11958 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 28 Aug 2002 08:59:47 +1200 From: "Dave Pinchin" To: , Subject: Re: MLC question II Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id QAA11958 Sender: owner-linac-eng@plato.aristotle.net G'day, A suggestion only. When cleaning the secondary position. Be meticulous. I did a clean once and after cleaning examined the componentry before re-assembly using a magnifier. There was a ludicrous amount of fibres from the 'lint free' cleaning cloths. The sharp edges of the contacts tear the fibres out et voila. The problem is worse. Dave "It all makes work for the working man to do" - Flanders and Swan >>> "Orsolini, Joe D" 28/08/02 07:24:35 >>> Well we have another problem, now during IMRT's *MLC Hardware COM shows up and interrupts treatment, at times its with the *Secondary I/L position, it appears also very quickly as the 'A' side goes into position. I have cleaned the suspect side, verified all cable connections, and replaced the combo com card on the controller. I am nearly at my wits end, does anyone have any clues what could be wrong?? Giuseppe 'Joe' Orsolini RT(T) Service Engineer 2002-2004 Cancer Center Employee Council Rep University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 00:11:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17joZ5-0006Hd-00; Wed, 28 Aug 2002 00:11:59 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A495A1112F1; Tue, 27 Aug 2002 23:57:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA13737 for linac-eng-list; Tue, 27 Aug 2002 16:37:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA13729 for ; Tue, 27 Aug 2002 16:37:11 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Tue, 27 Aug 2002 17:36:40 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F005@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Peter E. Vitali'" , David Price Cc: Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 17:36:36 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Peter E. Vitali'" , David Price Cc: Rtsolution@aol.com, linac-eng@plato.aristotle.net Subject: RE: lack of emails lately Date: Tue, 27 Aug 2002 17:36:36 -0400 Sender: owner-linac-eng@plato.aristotle.net My aol account at home gets about 2 spam per day, but I don't do any commercial stuff with it, such as purchasing. And very little browsing. It helps to make a fake address as mentioned, let it recieve junk from your browsing. -----Original Message----- From: Peter E. Vitali [mailto:peter.vitali@yale.edu] Sent: Tuesday, August 27, 2002 2:16 PM To: David Price Cc: Rtsolution@aol.com; linac-eng@plato.aristotle.net Subject: Re: lack of emails lately Dave: I am on a University E-Mail system and once the Linac List Server went to sending only messages from subscribers I have not had any spam. I do not have any filter activated on my computer. Prior to the Linac List server changing to subscriber messages only I did receive a lot of spam. Maybe yours is coming from aol.com? There is software out there to clean up spam. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 00:36:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jowy-0006IW-00; Wed, 28 Aug 2002 00:36:40 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 369FD1112F1; Wed, 28 Aug 2002 00:22:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA14536 for linac-eng-list; Tue, 27 Aug 2002 17:04:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA14531 for ; Tue, 27 Aug 2002 17:03:58 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id KAA26688 for ; Wed, 28 Aug 2002 10:01:25 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 28 Aug 2002 10:06:03 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 28 Aug 2002 10:03:08 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 28 Aug 2002 10:03:04 +1200 From: "Dave Pinchin" To: Subject: Retraction. radiation safety (RF) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA14532 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 28 Aug 2002 10:03:04 +1200 From: "Dave Pinchin" To: Subject: Retraction. radiation safety (RF) Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA14532 Sender: owner-linac-eng@plato.aristotle.net Sorry guys (and gals) 1mW/cm2 not 1mW/m2 as mentioned in RF safety posting. :D ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 01:51:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17jq7H-0006Li-00; Wed, 28 Aug 2002 01:51:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 55D411112F1; Wed, 28 Aug 2002 01:37:13 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id SAA16296 for linac-eng-list; Tue, 27 Aug 2002 18:19:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f83.law4.hotmail.com [216.33.149.83]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA16292 for ; Tue, 27 Aug 2002 18:19:23 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 27 Aug 2002 16:18:51 -0700 Received: from 68.101.81.239 by lw4fd.law4.hotmail.msn.com with HTTP; Tue, 27 Aug 2002 23:18:50 GMT X-Originating-IP: [68.101.81.239] From: "David Price" To: Dave.Pinchin@cdhb.govt.nz, linac-eng@plato.aristotle.net Subject: Re: lack of emails lately Date: Tue, 27 Aug 2002 23:18:50 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 27 Aug 2002 23:18:51.0161 (UTC) FILETIME=[1A93D090:01C24E20] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [68.101.81.239] From: "David Price" To: Dave.Pinchin@cdhb.govt.nz, linac-eng@plato.aristotle.net Subject: Re: lack of emails lately Date: Tue, 27 Aug 2002 23:18:50 +0000 X-OriginalArrivalTime: 27 Aug 2002 23:18:51.0161 (UTC) FILETIME=[1A93D090:01C24E20] Sender: owner-linac-eng@plato.aristotle.net DAve Well,, now THAT I know nobody else seems to be getting this stuff, I might get a new email address and see what happens. The really odd thing is, I only use this address to send and receive mail here to this address and nobody else would has it. Im just glad I dont use my university email account. And all that insist its an AOL problem,,,,,Ya right,, I never had an AOL account I have to agree with what sombody said, spam is a fact of life, just delete it, but the volume I was getting was absurd to this on account. My appoligies to those I may have offfended, as I thought this was a general problem and I value this list serve a tool. >From: "Dave Pinchin" >To: , >Subject: Re: lack of emails lately >Date: Wed, 28 Aug 2002 08:40:52 +1200 > >G'day again, >Might I suggest that your email address has been detected and the spam-bots >are posting directly to your address. >I personally would unsubscribe BUT resubscribe on a different email >address. >This would prove where the *&^&* stuff is coming from. > >Dave > > >>> "David Price" 28/08/02 05:33:33 >>> >Dear chad > >unfortunalty that is only a mere sample of what I put up with on this >account. I had to clear 50 message today before I got to that query, and >that is a almost daily core to read what I might consider content worth >reading. This Email account is used only for this one list serve, One on >many I have to seperate my interest. This one account gets hit all the time >with so much more spam its unbeleivable. I spend 3/4's of my time just >deleting smutt spam, just to find the 3 to 4 messages a day that accuatly >appear here any more. > >you might try counting the unsubsrcibes in the last 6-9 months before you >answer > > > > >From: clfikes@mail.mdanderson.org > >To: "David Price" > >CC: linac-eng@plato.aristotle.net > >Subject: Re: lack of emails lately > >Date: Tue, 27 Aug 2002 12:04:23 -0500 > > > > > > > >David, > > > >Your email is by far the worst thing I've received from the list server >in >many > >months. > >If you're receiving so much SPAM, it's not from the list server! > >Please keep in mind for future posts that not everyone on this list > >appreciates > >the vulgar language > >you choose to send out. You could also get a lot of unsuspecting people >in > >trouble with their > >employers for the language you used in your email. I'm sure that my > >employer > >flagged your email, > >and I wish that they had simply filtered it out. I don't suscribe to >this >list > >to have to read your > >kind of trash, so keep it to yourself. > > > >Chad > > > > > > > > > > > >"David Price" on 08/27/2002 11:18:31 AM > > > >To: Rtsolution@aol.com, linac-eng@plato.aristotle.net > >cc: (bcc: Chad L. Fikes/MDACC) > > > >Subject: Re: lack of emails lately > > > > > > > > > >To all the may be left, all 1/2 dozen of so > > > >Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content > >that concerns Linac issues, I have to wade through 50 to 60 that contain > >such grap as penis enlargement, suzy's wet pussy and other such crap. >There > >has been a mass exodus from this list serve because of it. Really, >somebody > >could loose their job by accidently opening such crapola > > > >Maybe me sure reconsider this issue again, or start another list serve > >where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! > > > >Unfortunatly, there probaly is nobody left to read this email who really > >gives a shit any more > > > >PS, We should rename the list serve Linac smutt board.........Lets take >a > >vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > > > > > >David Price > >SHands Cancer Center > >2000 SW archer Rd > >Gainesville Fla, 32610 > >W 352-395-0316 > > > >Opinions expressed here are entirely my own and do not constitute any > >affirmation from my employer, the University of Florida, or my pet >gerbil, > >Herbie > > > > > > > > > > >From: Rtsolution@aol.com > > >To: linac-eng@plato.aristotle.net > > >Subject: lack of emails lately > > >Date: Tue, 27 Aug 2002 10:08:14 EDT > > > > > >I recently received very few emails. Could anyone tell me if I need to > > >register again or do something in order to get emails > > > > > > > > >Thanks in advance > > > > > > > > > >David Price > >SHands Cancer Center > >2000 SW archer Rd > >Gainesville Fla, 32610 > >W 352-395-0316 > > > >Opinions expressed here are entirely my own and do not constitute any > >affirmation from my employer, the University of Florida, or my pet >gerbil, > >Herbie > > > >"Linac Engineers List Server (E-mail)" > >Linac-eng@plato.aristotle.net > >Linac-eng@plato.aristotle.net > > > > > > > >_________________________________________________________________ > >Join the world?s largest e-mail service with MSN Hotmail. > >http://www.hotmail.com > > > > >David Price >SHands Cancer Center >2000 SW archer Rd >Gainesville Fla, 32610 >W 352-395-0316 > >Opinions expressed here are entirely my own and do not constitute any >affirmation from my employer, the University of Florida, or my pet gerbil, >Herbie > >"Linac Engineers List Server (E-mail)" >Linac-eng@plato.aristotle.net >Linac-eng@plato.aristotle.net > > > >_________________________________________________________________ >Send and receive Hotmail on your mobile device: http://mobile.msn.com > > > >********************************************************************** >** This email and attachments have been scanned for content and viruses >and is believed to be clean ** > >This email or attachments may contain confidential or legally >privileged information intended for the sole use of the addressee(s). >Any use, redistribution, disclosure, or reproduction of this message, >except as intended, is prohibited. If you received this email in error, >please notify the sender and remove all copies of the message, >including any attachments. Any views or opinions expressed in this >email (unless otherwise stated) may not represent those of Canterbury >District Health Board >********************************************************************** > David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 14:48:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17k2FF-0003SM-00; Wed, 28 Aug 2002 14:48:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 734761112FB; Wed, 28 Aug 2002 14:34:08 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA25921 for linac-eng-list; Wed, 28 Aug 2002 07:09:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA25917 for ; Wed, 28 Aug 2002 07:09:18 -0500 (CDT) Received: from Unknown [192.191.191.250] by mail1.radiological.com - SuperScout Email Filter (4.0); Wednesday, 28 August 2002, 05:13:12 Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Wed, 28 Aug 2002 05:09:10 -0700 Message-ID: From: "Steve Reliford" To: Date: Wed, 28 Aug 2002 05:08:56 -0700 Subject: Search MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Mailer: Novell GroupWise Internet Agent 6.0 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA25918 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Steve Reliford" To: Date: Wed, 28 Aug 2002 05:08:56 -0700 Subject: Search Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA25918 Sender: owner-linac-eng@plato.aristotle.net I am trying to get in contact with Robert E. Hull. If anyone knows how to reach him, please contact me at the following e-mail address. Thanks, Steve Reliford rareliford@radiological.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 17:14:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17k4X0-0005mt-00; Wed, 28 Aug 2002 17:14:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 16B1D1112FC; Wed, 28 Aug 2002 17:00:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA28304 for linac-eng-list; Wed, 28 Aug 2002 09:42:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA28300 for ; Wed, 28 Aug 2002 09:42:51 -0500 (CDT) Received: from jyorke ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Wed, 28 Aug 2002 11:45:54 -0300 From: "Greg MacKinnon" To: "LinacEng" Subject: MLC INTERLOCK Date: Wed, 28 Aug 2002 11:40:59 -0300 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Greg MacKinnon" To: "LinacEng" Subject: MLC INTERLOCK Date: Wed, 28 Aug 2002 11:40:59 -0300 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Hi Group The last couple of days I have been having MLC INTERLOCKs. The interlock occurs during a treatment which is taking a PV. There are no message errors reported at the MLC controller computer, no error in the status window of the MLC on the treatment workstation and the LED on the interface II board in the console is OFF. The way to clear is to perform a F2 but this requires going to STANDBY, thus 12 min delay. Not good. I have generated a physic patient to simulate all patient treatment and MLC coordinates. The simulation is succeesful which suggest possible intermittant problem. Other relevant information, I have a 2100C/D with 80 leaf MLC & mark II liquid crystal PV. Varis has been recently updated to GEN 6.2, Console still at rel 5.4. The treatment workstation update to a Dell PC at 1.8Ghz. Any suggestions would be appreciated. Thanks Greg __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8000 x2163 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 17:15:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17k4XC-0005nI-00; Wed, 28 Aug 2002 17:15:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F38C21112FC; Wed, 28 Aug 2002 17:00:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA28325 for linac-eng-list; Wed, 28 Aug 2002 09:44:16 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA28321 for ; Wed, 28 Aug 2002 09:44:14 -0500 (CDT) Received: from Unknown [192.191.191.250] by mail1.radiological.com - SuperScout Email Filter (4.0); Wednesday, 28 August 2002, 07:48:00 Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Wed, 28 Aug 2002 07:43:56 -0700 Message-ID: From: "Steve Reliford" To: Date: Wed, 28 Aug 2002 07:43:31 -0700 Subject: Search MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Mailer: Novell GroupWise Internet Agent 6.0 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA28322 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Steve Reliford" To: Date: Wed, 28 Aug 2002 07:43:31 -0700 Subject: Search Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA28322 Sender: owner-linac-eng@plato.aristotle.net OOPs, I am trying to find Robert E. Huff, not Hull. Thanks in advance to anyone that can assist. Steve Reliford rareliford@radiological.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 18:49:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17k60S-0006Q6-00; Wed, 28 Aug 2002 18:49:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A414F1112FC; Wed, 28 Aug 2002 18:35:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA29137 for linac-eng-list; Wed, 28 Aug 2002 10:21:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from maila.fabermaunsell.com ([195.44.195.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29132 for ; Wed, 28 Aug 2002 10:21:15 -0500 (CDT) Received: from mailgate.fabermaunsell.com (mailgate.fabermaunsell.com [172.17.160.161]) by maila.fabermaunsell.com (8.9.3/8.9.3) with ESMTP id QAA15564 for ; Wed, 28 Aug 2002 16:17:47 +0100 (BST) X-SMF-Message-ID: 5C5EFF3001B03900 X-SMF-Hop-Count: 3 Date: Wed, 28 Aug 2002 16:14:21 +0100 From: David Dean To: linac-eng X-EXP32-SerialNo: 50000088 Subject: Bunker Communication Systems Message-ID: <3D668725@mailgate.fabermaunsell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Mailer: InterChange (Hydra) SMTP v3.61.08 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-SMF-Message-ID: 5C5EFF3001B03900 X-SMF-Hop-Count: 3 Date: Wed, 28 Aug 2002 16:14:21 +0100 From: David Dean To: linac-eng X-EXP32-SerialNo: 50000088 Subject: Bunker Communication Systems Sender: owner-linac-eng@plato.aristotle.net Dear All I am looking for a 2-way patient/operator communication system for each Linac bunker. Either audio or possibly audio-visual Can anyone recommend a suitable proven system/manufacturer? Dave Dean Manchester, England end 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 19:47:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17k6uu-0006To-00; Wed, 28 Aug 2002 19:47:45 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E67C81112FC; Wed, 28 Aug 2002 19:33:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA02408 for linac-eng-list; Wed, 28 Aug 2002 12:16:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA02404 for ; Wed, 28 Aug 2002 12:16:16 -0500 (CDT) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Wed, 28 Aug 2002 09:10:38 -0300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 28 Aug 2002 09:10:28 -0300 From: "Carl Murphy" To: Subject: Lack of emails, spam, etc Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA02405 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 28 Aug 2002 09:10:28 -0300 From: "Carl Murphy" To: Subject: Lack of emails, spam, etc Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA02405 Sender: owner-linac-eng@plato.aristotle.net To clarify some of the inquiries that have been posted on this list, I have some facts you should know: 1. The linac-eng list is now a "closed" list. This means that if you are not a subscriber, you cannot post messages on the listserver. 2. "Spam" emails sent to the listserver will not be posted because the spam email address is not subscribed to the list (note point 1 above). 3. Some people have commented that they have not been receiving very many postings and/or their own submissions to the list are not being posted. This is most likely because they have not re-subscribed since their last email address change (...at least, that was the case here at our institution when they changed our email addresses). 4. Hotmail and other "free" web-based email accounts are notorius for spam. The best way to avoid spam is to not list your email address on any webpage or other location in cyberspace that you do not trust. Also, if you reply to a spammed email, you have just verified to the spammer that your email address is valid. This will result in an avalanche of spam you will not be able to control. The best thing to do with spam is delete it. If you are repeatedly spammed, you may have to get a new email address to avoid getting spam in the future. These points posted above are facts, not my opinion. However, my thoughts are that sometimes we forget the purpose of this list. We are on this list to help each other. It has done so much good in the past, with few negative repercussions. I'd like to see the list clean up a little... maybe put the soapbox in the closet for a while, and stick to the facts. These comments are those of me and not my institution, yadda, yadda.... Best regards, Carl Murphy _________________________________ Carl Murphy, C.E.T. Linear Accelerator Service Technologist Medical Physics Department Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax, Nova Scotia, Canada Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Aug 28 20:21:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17k7S2-0006Wr-00; Wed, 28 Aug 2002 20:21:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A46051112FD; Wed, 28 Aug 2002 20:07:36 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA03249 for linac-eng-list; Wed, 28 Aug 2002 12:51:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.radonc.musc.edu (xchange.RadOnc.MUSC.EDU [128.23.55.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA03245 for ; Wed, 28 Aug 2002 12:51:29 -0500 (CDT) Received: by xchange.RadOnc.MUSC.EDU with Internet Mail Service (5.5.2653.19) id ; Wed, 28 Aug 2002 13:50:57 -0400 Message-ID: <0758E63D5DEC3B458FF43D068F1CC7360188FB@xchange.RadOnc.MUSC.EDU> From: "Nelson, Steve" To: "Linac-Eng (E-mail)" Subject: RE: lack of emails lately Date: Wed, 28 Aug 2002 13:50:51 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson, Steve" To: "Linac-Eng (E-mail)" Subject: RE: lack of emails lately Date: Wed, 28 Aug 2002 13:50:51 -0400 Sender: owner-linac-eng@plato.aristotle.net David,David, David I'm on the list and also am not receiving any more spam. I haven't seen any porno spam in months. You need to just change your name and move to a different Pentium, or dimension. -----Original Message----- From: David Price [mailto:roast_em@hotmail.com] Sent: Tuesday, August 27, 2002 12:19 PM To: Rtsolution@aol.com; linac-eng@plato.aristotle.net Subject: Re: lack of emails lately To all the may be left, all 1/2 dozen of so Lack Email...........Hummmmmmmmmmm!!... for every 1 I get the has content that concerns Linac issues, I have to wade through 50 to 60 that contain such grap as penis enlargement, suzy's wet pussy and other such crap. There has been a mass exodus from this list serve because of it. Really, somebody could loose their job by accidently opening such crapola Maybe me sure reconsider this issue again, or start another list serve where linac content in the primary content, and NOT SPAM!!!!!!!!!!!! Unfortunatly, there probaly is nobody left to read this email who really gives a shit any more PS, We should rename the list serve Linac smutt board.........Lets take a vote on that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie >From: Rtsolution@aol.com >To: linac-eng@plato.aristotle.net >Subject: lack of emails lately >Date: Tue, 27 Aug 2002 10:08:14 EDT > >I recently received very few emails. Could anyone tell me if I need to >register again or do something in order to get emails > > >Thanks in advance David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 29 14:23:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kOKD-0003aM-00; Thu, 29 Aug 2002 14:23:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 054191112F1; Thu, 29 Aug 2002 14:08:24 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA09785 for linac-eng-list; Thu, 29 Aug 2002 06:47:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm033.netvigator.com (imsm033.netvigator.com [218.102.23.103]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA09780 for ; Thu, 29 Aug 2002 06:47:37 -0500 (CDT) Received: (qmail 22590 invoked from network); 29 Aug 2002 11:47:22 -0000 Received: from pcd586214.netvigator.com (HELO kyeung) (218.102.118.214) by imsm033.netvigator.com with SMTP; 29 Aug 2002 11:47:22 -0000 Message-ID: <003501c24f50$fca45000$db64fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varian PortalVision interlock Date: Thu, 29 Aug 2002 19:41:17 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0032_01C24F94.0AAF2600" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varian PortalVision interlock Date: Thu, 29 Aug 2002 19:41:17 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0032_01C24F94.0AAF2600 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, =20 Varian PortalVision, version 6.1 I was asked the meaning of interlock, E 10, shown on the portalvision = pendant. The interlock does not exist in all PV manuals. Could any give some suggestions / hints? Best regards, Kim Yeung=20 ------=_NextPart_000_0032_01C24F94.0AAF2600 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
       
            = Varian=20 PortalVision, version 6.1
     
    I was asked the meaning of interlock, E = 10, shown on the portalvision pendant.
     
    The interlock does not exist in all PV=20 manuals.
     
    Could any give some suggestions /=20 hints?
     
    Best regards,
     
    Kim = Yeung 
    ------=_NextPart_000_0032_01C24F94.0AAF2600-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 29 14:23:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kOKR-0003af-00; Thu, 29 Aug 2002 14:23:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 38F221112F1; Thu, 29 Aug 2002 14:08:37 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA09708 for linac-eng-list; Thu, 29 Aug 2002 06:43:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm033.netvigator.com (imsm033.netvigator.com [218.102.23.103]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA09703 for ; Thu, 29 Aug 2002 06:43:22 -0500 (CDT) Received: (qmail 15193 invoked from network); 29 Aug 2002 11:43:01 -0000 Received: from pcd586214.netvigator.com (HELO kyeung) (218.102.118.214) by imsm033.netvigator.com with SMTP; 29 Aug 2002 11:43:01 -0000 Message-ID: <002c01c24f50$60f14dc0$db64fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Dose rate control: coincident gun or delay gun mode Date: Thu, 29 Aug 2002 19:36:55 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0029_01C24F93.6ED16A40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Dose rate control: coincident gun or delay gun mode Date: Thu, 29 Aug 2002 19:36:55 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0029_01C24F93.6ED16A40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 2300CD (T-drive) version 6.1 I really do not understand how does the Clinac select the coincident gun = or delay gun mode for dose rate control. It is well known the Clinac selects coincident gun mode during "normal" = conditions, but it has been noted the Clinac changes to delay gun mode = in no output conditions (faults conditions or even in the "off" of = pulse dropping mode). Any comments on the above issue are appreciated. Best regards, Kim Yeung ------=_NextPart_000_0029_01C24F93.6ED16A40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
            = Varian=20 2300CD (T-drive) version 6.1
     
    I really do not understand how does the = Clinac select the coincident gun or delay gun mode for dose = rate=20 control.
     
    It is well known the Clinac selects coincident gun mode during = "normal" conditions, but it has been noted the Clinac changes=20 to delay gun mode in no output conditions (faults = conditions or=20 even in the "off"  of pulse dropping mode).
     
    Any comments on the above issue are=20 appreciated.
     
    Best regards,
     
    Kim = Yeung
    ------=_NextPart_000_0029_01C24F93.6ED16A40-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 29 16:36:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kQPD-0004vO-00; Thu, 29 Aug 2002 16:36:19 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BD0AF1112F1; Thu, 29 Aug 2002 16:21:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA11979 for linac-eng-list; Thu, 29 Aug 2002 08:56:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA11974 for ; Thu, 29 Aug 2002 08:56:41 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C24F63.D415E614" Subject: RE: Dose rate control: coincident gun or delay gun mode Date: Thu, 29 Aug 2002 09:56:09 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386E6@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Dose rate control: coincident gun or delay gun mode Thread-Index: AcJPXa1nPtN+BHx+Rfaz/pKyJmbASAABCroA From: "Tim Cullen" To: "kim yeung" , "linac-eng" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: RE: Dose rate control: coincident gun or delay gun mode Date: Thu, 29 Aug 2002 09:56:09 -0400 Thread-Topic: Dose rate control: coincident gun or delay gun mode Thread-Index: AcJPXa1nPtN+BHx+Rfaz/pKyJmbASAABCroA From: "Tim Cullen" To: "kim yeung" , "linac-eng" Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C24F63.D415E614 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Kim, =20 the systems manual, section 3 system overview, goes into depth explaining the dose rate control system. Starting on page 3-25 it covers the triggers and back on 3-39 it goes into dose rate control for fixed beam and DBD. I say this because it would take me half a day to type all that is covered in the manual. I think the diagrams of the timing sequences in there help too. I'm referring to the old mauve binder manual from Varian dated July, 1991. =20 =20 -----Original Message----- From: kim yeung [mailto:kimyeung@netvigator.com]=20 Sent: Thursday, August 29, 2002 7:37 AM To: linac-eng Subject: Dose rate control: coincident gun or delay gun mode =09 =09 =09 Hi Colleagues, =20 Varian 2300CD (T-drive) version 6.1 =20 I really do not understand how does the Clinac select the coincident gun or delay gun mode for dose rate control. =20 It is well known the Clinac selects coincident gun mode during "normal" conditions, but it has been noted the Clinac changes to delay gun mode in no output conditions (faults conditions or even in the "off" of pulse dropping mode). =20 Any comments on the above issue are appreciated. =20 Best regards, =20 Kim Yeung ------_=_NextPart_001_01C24F63.D415E614 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    Kim,
     
    the=20 systems manual, section 3 system overview, goes into depth explaining = the dose=20 rate control system. Starting on page 3-25 it covers the triggers = and back=20 on 3-39 it goes into dose rate control for fixed beam and DBD. I say = this=20 because it would take me half a day to type all that is covered in = the=20 manual. I think the diagrams of the timing sequences in = there help=20 too.
    I'm=20 referring to the old mauve binder manual from Varian dated July,=20 1991.
     
     
    Hi Colleagues,
     
            = Varian=20 2300CD (T-drive) version 6.1
     
    I really do not understand how does = the=20 Clinac select the coincident gun or delay gun mode for dose = rate=20 control.
     
    It is well known the Clinac selects coincident gun mode = during=20 "normal" conditions, but it has been noted the Clinac changes=20 to delay gun mode in no output conditions (faults = conditions or=20 even in the "off"  of pulse dropping mode).
     
    Any comments on the above issue are=20 appreciated.
     
    Best regards,
     
    Kim=20 Yeung
    =00 ------_=_NextPart_001_01C24F63.D415E614-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 29 20:26:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kU0H-00063z-00; Thu, 29 Aug 2002 20:26:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3D9561112F1; Thu, 29 Aug 2002 20:12:02 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA13745 for linac-eng-list; Thu, 29 Aug 2002 10:31:08 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA13741 for ; Thu, 29 Aug 2002 10:31:06 -0500 (CDT) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Thu, 29 Aug 2002 08:30:36 -0700 Message-ID: From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL2100EX Date: Thu, 29 Aug 2002 08:30:16 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wilson, Jim" To: "'Linac Bulletin Board Posting'" Subject: Varian CL2100EX Date: Thu, 29 Aug 2002 08:30:16 -0700 Sender: owner-linac-eng@plato.aristotle.net I have 2 new Varian CL2100EX accelerators in a new department. The console area is limited on space and the technicians would like to get rid of the printers used for printing out the daily warm up information. Does anyone know if this information is stored in such a manner as it may be easily retrieved and either printed out or put into a computer for analysis by our engineering department? How far back do these logs go before they are written over? Thank you for your prompt, professional response! Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 29 20:53:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kUPz-00065y-00; Thu, 29 Aug 2002 20:53:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 656211112F1; Thu, 29 Aug 2002 20:38:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA16877 for linac-eng-list; Thu, 29 Aug 2002 13:01:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA16872 for ; Thu, 29 Aug 2002 13:01:21 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Thu, 29 Aug 2002 13:28:56 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F010@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Dave Pinchin'" , jsomers@accuray.com, linac-eng@plato.aristotle.net Subject: RE: Radiation Safety Date: Thu, 29 Aug 2002 13:28:55 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Dave Pinchin'" , jsomers@accuray.com, linac-eng@plato.aristotle.net Subject: RE: Radiation Safety Date: Thu, 29 Aug 2002 13:28:55 -0400 Sender: owner-linac-eng@plato.aristotle.net I don't think you get RF at the PFN, just extremely high power noise pulses, especially during firing and recovery of the thyratrons. In fact, I have seen some cases where this noise got into the analog circuits and caused motion faults, which could be moved from one axis to another by changing deQ percent/timing. In one case at least, it was the DeQ thyratron recovery that coincided with the noise in the analog circuit. The reason for so many screws on the screens there is to keep the noise inside, important for pacemaker and pump patients, not good to leave them out. All the circuit layout is critical, so moving things around can cause big changes in noise levels, especially grounds or pulse cables. (Sorry, I used to design modulators, got me going.) You could get some RF at tubes like the KLY or Mag, or at a bad joint, if something is wrong. This 3 kmhz Rf tends to cook your eyeballs, cause cataracts. And of course, an open guide would be at unthinkable levels. I believe one guy was cooked/killed in WWII when he walked in front of a radar. It is hard for the Rf to get out of any solid metal enclosure except through holes, but I think when magnetrons arc on the outside it may have an RF component. Modulators are extremely dangerous when you start disconnecting parts. For instance, with the pulse cable disconnected, putting a hook stick on top of the PFN will not discharge it, there is no return path. A guy almost got killed on that one. More examples like this would make a good topic for discussion here, as many folks will never get much experience on modulators, which are now very reliable compared with years ago. -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Tuesday, August 27, 2002 4:36 PM To: jsomers@accuray.com; linac-eng@plato.aristotle.net Subject: Radiation Safety G'day, Attended a very interesting 0.5day seminar on RF radiation safety. Something to also be mindful of on a Linac site. Things like the PFN deck with it's covers off for debug etc. International levels are something like 1mW/m2. I cannot imagine a PFN deck being below this. Of course there are all sorts of factors like frequency which are also taken into account in the formula. Any comments on this line??????? :D >>> "John Somers" 28/08/02 05:16:35 >>> Thanks to Jerry for thinking of the radiation safety issues and providing some very helpful information. Here's just one addition for the sake of understanding -- It is true as Jerry said that the standing wave accelerator guides (Varian, Siemens) work essentially the same forward as well as reverse in terms of accelerating available electrons. This is not the case in travelling wave accelerators, i.e., Philips/Elekta machines. Note that this fact does not change the precautions you should use. With any of these linacs, if you go in the room with high voltage switching and RF on, you should first disable the gun, close the jaws and measure the radiation. Measure where you will be working, and don't put any part of yourself in any hot spots. John Somers -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, August 27, 2002 8:04 AM To: 'kim yeung'; linac-eng Subject: RE: dose rate control :Kly I or Gun console mode ? Just a few comments on Radiation Safety, prompted by the "unexpected beam" incident here. ............. And an accelerator works the same in the reverse direction, so if some beam hits the Bmag wall, some electrons will be accelerated back to the gun. Closing the Jaws doesn't help this! Jerry ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Aug 29 22:39:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kW4z-0006Co-00; Thu, 29 Aug 2002 22:39:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 66E2B1112F1; Thu, 29 Aug 2002 22:25:03 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA18966 for linac-eng-list; Thu, 29 Aug 2002 14:38:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta6.snfc21.pbi.net (mta6.snfc21.pbi.net [206.13.28.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA18958 for ; Thu, 29 Aug 2002 14:38:13 -0500 (CDT) Received: from hostdsl ([63.206.143.60]) by mta6.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with SMTP id <0H1M00DKDEJNW9@mta6.snfc21.pbi.net> for linac-eng@plato.aristotle.net; Thu, 29 Aug 2002 12:38:12 -0700 (PDT) Date: Thu, 29 Aug 2002 12:38:43 -0700 From: Norman Kessler Subject: Test equipment for sale To: Linac Engineers Listserver Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 29 Aug 2002 12:38:43 -0700 From: Norman Kessler Subject: Test equipment for sale To: Linac Engineers Listserver X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net I have the following test equipment for sale: 1)Keithley Model 90100 "Tracker" for info see this link http://www.elimpex.com/tracker.html This is a great unit for daily checks or post service quality control. Included is a factory carrying case and eight build-up plates. The plates do no fit in the case. 2) Model 7000 "Thebes" for info see this link http://www.elimpex.com/7000.htm This unit lets you do beam symmetry adjustments in real time. It's a real time saver. I do not have a case for this unit or its printer. I do have 3 build-up plates included. Neither of these units has been used extensively and are in good condition. I'm asking US$2800.00 each plus shipping. I'll offer a discount if you purchase both. I also have quite a bit of documentation for CGR/MeV accelerators that I would like to get rid of. If you are interested or have any questions, please e-mail me: mron@pacbell.net I am a private party not affiliated with any hospital, company, or educational institution. By the way, I'm also looking for a job. I'm located in Southern California, but am willing to relocate. Norm Kessler 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 30 00:47:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kY4D-0006Jj-00; Fri, 30 Aug 2002 00:47:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A8EFE1112F1; Fri, 30 Aug 2002 00:32:21 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA28365 for linac-eng-list; Thu, 29 Aug 2002 17:16:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA28360 for ; Thu, 29 Aug 2002 17:16:51 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id KAA17013 for ; Fri, 30 Aug 2002 10:13:58 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 30 Aug 2002 10:18:47 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 30 Aug 2002 10:15:52 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 30 Aug 2002 10:15:48 +1200 From: "Dave Pinchin" To: , Subject: RE: Radiation Safety Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA28362 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 30 Aug 2002 10:15:48 +1200 From: "Dave Pinchin" To: , Subject: RE: Radiation Safety Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA28362 Sender: owner-linac-eng@plato.aristotle.net G'day, Just talking through my VERY limited experience of RF. ( I made a super-regeny valve radio in free space. (age 14)). The PFN makes nice square pulses at LOTS of volts and LOTS of current and has nice big coils and wires everywhere. The pulse thing is only microseconds long. Mr. Fourier Would make all sorts of maths squiggles and suggest there would be horrendous spectra. There is cetrainly plenty of e-field and h-field. I cannot see how there is very little RF from a modulator with it's service covers off. And surely the power noise pulses ARE RF. Dave. >>> "Maddox, Buford J" 30/08/02 05:28:55 >>> I don't think you get RF at the PFN, just extremely high power noise pulses, especially during firing and recovery of the thyratrons. In fact, I have seen some cases where this noise got into the analog circuits and caused motion faults, which could be moved from one axis to another by changing deQ percent/timing. In one case at least, it was the DeQ thyratron recovery that coincided with the noise in the analog circuit. The reason for so many screws on the screens there is to keep the noise inside, important for pacemaker and pump patients, not good to leave them out. All the circuit layout is critical, so moving things around can cause big changes in noise levels, especially grounds or pulse cables. (Sorry, I used to design modulators, got me going.) You could get some RF at tubes like the KLY or Mag, or at a bad joint, if something is wrong. This 3 kmhz Rf tends to cook your eyeballs, cause cataracts. And of course, an open guide would be at unthinkable levels. I believe one guy was cooked/killed in WWII when he walked in front of a radar. It is hard for the Rf to get out of any solid metal enclosure except through holes, but I think when magnetrons arc on the outside it may have an RF component. Modulators are extremely dangerous when you start disconnecting parts. For instance, with the pulse cable disconnected, putting a hook stick on top of the PFN will not discharge it, there is no return path. A guy almost got killed on that one. More examples like this would make a good topic for discussion here, as many folks will never get much experience on modulators, which are now very reliable compared with years ago. -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Tuesday, August 27, 2002 4:36 PM To: jsomers@accuray.com; linac-eng@plato.aristotle.net Subject: Radiation Safety G'day, Attended a very interesting 0.5day seminar on RF radiation safety. Something to also be mindful of on a Linac site. Things like the PFN deck with it's covers off for debug etc. International levels are something like 1mW/m2. I cannot imagine a PFN deck being below this. Of course there are all sorts of factors like frequency which are also taken into account in the formula. Any comments on this line??????? :D >>> "John Somers" 28/08/02 05:16:35 >>> Thanks to Jerry for thinking of the radiation safety issues and providing some very helpful information. Here's just one addition for the sake of understanding -- It is true as Jerry said that the standing wave accelerator guides (Varian, Siemens) work essentially the same forward as well as reverse in terms of accelerating available electrons. This is not the case in travelling wave accelerators, i.e., Philips/Elekta machines. Note that this fact does not change the precautions you should use. With any of these linacs, if you go in the room with high voltage switching and RF on, you should first disable the gun, close the jaws and measure the radiation. Measure where you will be working, and don't put any part of yourself in any hot spots. John Somers -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, August 27, 2002 8:04 AM To: 'kim yeung'; linac-eng Subject: RE: dose rate control :Kly I or Gun console mode ? Just a few comments on Radiation Safety, prompted by the "unexpected beam" incident here. ............. And an accelerator works the same in the reverse direction, so if some beam hits the Bmag wall, some electrons will be accelerated back to the gun. Closing the Jaws doesn't help this! Jerry ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 30 00:47:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kY4O-0006Jo-00; Fri, 30 Aug 2002 00:47:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9623C1112F1; Fri, 30 Aug 2002 00:32:33 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA28380 for linac-eng-list; Thu, 29 Aug 2002 17:19:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA28372 for ; Thu, 29 Aug 2002 17:19:37 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id KAA17122 for ; Fri, 30 Aug 2002 10:16:54 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 30 Aug 2002 10:21:43 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 30 Aug 2002 10:18:48 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 30 Aug 2002 10:18:35 +1200 From: "Dave Pinchin" To: Subject: Re: Varian CL2100EX morning check info. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA28377 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 30 Aug 2002 10:18:35 +1200 From: "Dave Pinchin" To: Subject: Re: Varian CL2100EX morning check info. Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA28377 Sender: owner-linac-eng@plato.aristotle.net G'day, I have no idea what or how the latest version of V's software does it's stuff. BUT for years I have been regularly gathering the MC info on floppy disk. Prior to version 6 S/W the MC files were written to c:\varian\mc\mc.nn where nn is a digit between 1 and 100 (200 in V5). The file INDEX. has a byte of info which describes the next file number to be written. The older files are overwritten. This gives you 100 (200) mornings worth of data. Our local V rep is upset by the fact that I don't look after the printers. They hardly work at all for his PMI visits......... I have also put together an XL spreadsheet which then massages the MC data and displays trends and alarms. It is freeware and REAL useful. I'm afraid the coding is more fitting an italian restraunt (read spaghetti) but it works. Another thought is an automatic printer sharer or move the printers further away and use line drivers. :D >>> "Wilson, Jim" 30/08/02 03:30:16 >>> I have 2 new Varian CL2100EX accelerators in a new department. The console area is limited on space and the technicians would like to get rid of the printers used for printing out the daily warm up information. Does anyone know if this information is stored in such a manner as it may be easily retrieved and either printed out or put into a computer for analysis by our engineering department? How far back do these logs go before they are written over? Thank you for your prompt, professional response! Jim Wilson Clinical Engineering Providence St.Vincent Hospital **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 30 09:46:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kgTi-0007xX-00; Fri, 30 Aug 2002 09:46:02 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CE0D61112F1; Fri, 30 Aug 2002 09:31:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA04386 for linac-eng-list; Fri, 30 Aug 2002 02:11:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id CAA04382 for ; Fri, 30 Aug 2002 02:11:44 -0500 (CDT) Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17kfwV-0000yV-00; Fri, 30 Aug 2002 08:11:43 +0100 Received: from relay.nhs.uk (194.62.42.142) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D6DF3C50001E517 for linac-eng@plato.aristotle.net; Fri, 30 Aug 2002 08:11:43 +0100 Received: from WS0039.BSUH.nhs.uk (195.106.11.5) by relay.nhs.uk (Syntegra-2 6.5.026) id 3D6E79A30000AC25 for linac-eng@plato.aristotle.net; Fri, 30 Aug 2002 08:11:43 +0100 Received: from ntas024.brighton-healthcare.nhs.uk (unverified) by WS0039.BSUH.nhs.uk (Content Technologies SMTPRS 4.3.1) with ESMTP id for ; Fri, 30 Aug 2002 08:11:42 +0100 Received: by ntas024.brighton-healthcare.nhs.uk with Internet Mail Service (5.5.2653.19) id <235XFY1P>; Fri, 30 Aug 2002 08:11:42 +0100 Message-ID: <0E1923616624CE4D8AFD52EA2AB718731EF341@w2ksvr007> From: "Marlow, Robert" To: "'linac-eng@plato.aristotle.net'" Subject: Job vacancy Date: Fri, 30 Aug 2002 08:11:41 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id CAA04383 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Marlow, Robert" To: "'linac-eng@plato.aristotle.net'" Subject: Job vacancy Date: Fri, 30 Aug 2002 08:11:41 +0100 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id CAA04383 Sender: owner-linac-eng@plato.aristotle.net ROYAL SUSSEX COUNTY HOSPITAL - MEDICAL PHYSICS DEPARTMENT BRIGHTON ELECTRONICS ENGINEER MTO 4 - £22, 474 - £26, 293 p.a. An enthusiastic Radiotherapy Electronics Engineer is required to join the team providing scientific and technical services to the busy Sussex Cancer Centre. Applicant should have at least three years experience of working with radiotherapy equipment and hold an ONC/HNC/Degree in a suitable discipline. The first phase of a substantial building and re-equipping programme has recently been completed. The Centre has an Elekta reference site agreement which includes software upgrades to maintain state of the art functionality, membership of the Elekta IMRT consortium, travel and education grants, and collaboration with the Elekta Applications and Development team. The Cancer Centre equipment profile will include three Elekta Precise accelerators (two multimode and one single energy) with EPI, MLC & IMRT capabilities, Elekta Precise simulator with CT extension and Oncentra SIM, Helax-TMS treatment planning system, EXOMIO virtual simulation, Gulmay orthovoltage X-ray unit, and Oncentra RV network. Further expansion of the Oncology Centre facilities is being planned. Planning is also underway for a replacement MR scanner and second CT scanner on the hospital site. The Hospital is situated a few minutes walk from the sea in this cosmopolitan city, which enjoys many cultural and leisure amenities, close proximity to the South Downs and easy access to London and the Continent. Facilities at the Hospital are currently being expanded in preparation for the new University Medical School. This post offers the challenge and opportunity of being involved in the servicing and maintenance of existing equipment and the installation and commissioning new equipment at the centre. You will also be encouraged to participate in a CPD program. For further information or to arrange an informal visit please contact Bob Marlow or Andrea Lawson-Chalcraft on 01273 696955 ext. 4537. Robert Marlow - Senior Electronics Engineer Medical Physics Department, Royal Sussex County Hospital, Eastern Road, BRIGHTON, East Sussex, BN2 5BE, England. Phone ++44 (0) 1273 664537 Fax ++44 (0) 1273 664698 Email robert.marlow@bsuh.nhs.uk 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 30 16:35:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kmsG-0004iU-00; Fri, 30 Aug 2002 16:35:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 28B101112F1; Fri, 30 Aug 2002 16:20:47 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA11997 for linac-eng-list; Fri, 30 Aug 2002 08:50:23 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA11993 for ; Fri, 30 Aug 2002 08:50:21 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Fri, 30 Aug 2002 08:54:52 -0500 Message-ID: From: "Turner, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Job vacancy Date: Fri, 30 Aug 2002 08:54:46 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA11994 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Job vacancy Date: Fri, 30 Aug 2002 08:54:46 -0500 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA11994 Sender: owner-linac-eng@plato.aristotle.net Good grief!! Will you look at the salary range! I guess it's the climate that draws people. 8^) -----Original Message----- From: Marlow, Robert [mailto:Robert.Marlow@bsuh.nhs.uk] Sent: Friday, August 30, 2002 2:12 AM To: 'linac-eng@plato.aristotle.net' Subject: Job vacancy ROYAL SUSSEX COUNTY HOSPITAL - MEDICAL PHYSICS DEPARTMENT BRIGHTON ELECTRONICS ENGINEER MTO 4 - £22, 474 - £26, 293 p.a. An enthusiastic Radiotherapy Electronics Engineer is required to join the team providing scientific and technical services to the busy Sussex Cancer Centre. Applicant should have at least three years experience of working with radiotherapy equipment and hold an ONC/HNC/Degree in a suitable discipline. The first phase of a substantial building and re-equipping programme has recently been completed. The Centre has an Elekta reference site agreement which includes software upgrades to maintain state of the art functionality, membership of the Elekta IMRT consortium, travel and education grants, and collaboration with the Elekta Applications and Development team. The Cancer Centre equipment profile will include three Elekta Precise accelerators (two multimode and one single energy) with EPI, MLC & IMRT capabilities, Elekta Precise simulator with CT extension and Oncentra SIM, Helax-TMS treatment planning system, EXOMIO virtual simulation, Gulmay orthovoltage X-ray unit, and Oncentra RV network. Further expansion of the Oncology Centre facilities is being planned. Planning is also underway for a replacement MR scanner and second CT scanner on the hospital site. The Hospital is situated a few minutes walk from the sea in this cosmopolitan city, which enjoys many cultural and leisure amenities, close proximity to the South Downs and easy access to London and the Continent. Facilities at the Hospital are currently being expanded in preparation for the new University Medical School. This post offers the challenge and opportunity of being involved in the servicing and maintenance of existing equipment and the installation and commissioning new equipment at the centre. You will also be encouraged to participate in a CPD program. For further information or to arrange an informal visit please contact Bob Marlow or Andrea Lawson-Chalcraft on 01273 696955 ext. 4537. Robert Marlow - Senior Electronics Engineer Medical Physics Department, Royal Sussex County Hospital, Eastern Road, BRIGHTON, East Sussex, BN2 5BE, England. Phone ++44 (0) 1273 664537 Fax ++44 (0) 1273 664698 Email robert.marlow@bsuh.nhs.uk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 30 19:54:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kpyp-0005Iq-00; Fri, 30 Aug 2002 19:54:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CEA891112F1; Fri, 30 Aug 2002 19:39:42 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA18980 for linac-eng-list; Fri, 30 Aug 2002 10:51:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA18976 for ; Fri, 30 Aug 2002 10:51:25 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: Varian CL2100EX morning check info. Date: Fri, 30 Aug 2002 11:50:48 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386E8@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Varian CL2100EX morning check info. Thread-Index: AcJPtXlw4SQuDN3KTzGMT1u+zYCDBQAgzjbQ From: "Tim Cullen" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA18977 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: RE: Varian CL2100EX morning check info. Date: Fri, 30 Aug 2002 11:50:48 -0400 Thread-Topic: Varian CL2100EX morning check info. Thread-Index: AcJPtXlw4SQuDN3KTzGMT1u+zYCDBQAgzjbQ From: "Tim Cullen" To: X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA18977 Sender: owner-linac-eng@plato.aristotle.net I deleted the printers a while back due to space also. Still have them laying around and drag them out when doing PM work and for scope printouts. The info is saved and has more than enough record log to help diagnose a current problem (older vers were 100 and later vers 200?). This log can be backed up to diskette periodically for manipulation later. I'm going to be truthful here and say that I have only used the logs for comparison in the past other than a couple of occasions where I was looking at a vacuum activity problem. I can't say whether or not there could have been times where a problem could have been avoided had I been keeping a vigilant eye on the MC data log?? My guess is probably not. I really only look at them now when doing the PMs and when looking at the comm files from time to time. Tim > -----Original Message----- > From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] > Sent: Thursday, August 29, 2002 6:19 PM > To: linac-eng@plato.aristotle.net > Subject: Re: Varian CL2100EX morning check info. > > > G'day, > > I have no idea what or how the latest version of V's software > does it's stuff. BUT for years I have been regularly > gathering the MC info on floppy disk. > > Prior to version 6 S/W the MC files were written to > c:\varian\mc\mc.nn where nn is a digit between 1 and 100 (200 > in V5). The file INDEX. has a byte of info which describes > the next file number to be written. The older files are > overwritten. This gives you 100 (200) mornings worth of data. > > Our local V rep is upset by the fact that I don't look after > the printers. They hardly work at all for his PMI visits......... > > I have also put together an XL spreadsheet which then > massages the MC data and displays trends and alarms. It is > freeware and REAL useful. I'm afraid the coding is more > fitting an italian restraunt (read spaghetti) but it works. > > Another thought is an automatic printer sharer or move the > printers further away and use line drivers. > > :D > > >>> "Wilson, Jim" 30/08/02 03:30:16 >>> > I have 2 new Varian CL2100EX accelerators in a new > department. The console area is limited on space and the > technicians would like to get rid of the printers used for > printing out the daily warm up information. Does anyone know > if this information is stored in such a manner as it may be > easily retrieved and either printed out or put into a > computer for analysis by our engineering department? How far > back do these logs go before they are written over? Thank you > for your prompt, professional response! > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > > ************************************************************** > ************** > This message is intended for the sole use of the individual > and entity to whom it is addressed, and may contain > information that is privileged, confidential and exempt from > disclosure under applicable law. If you are not the intended > addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, > copy, disclose or distribute to anyone the message or any > information contained in the message. If you have received > this message in error, please immediately advise the sender > by reply email and delete the message. Thank you very > much. > > > > ********************************************************************** > ** This email and attachments have been scanned for content > and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email > in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board > ********************************************************************** > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 30 21:41:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17kre5-0005Px-00; Fri, 30 Aug 2002 21:41:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F7491112F1; Fri, 30 Aug 2002 21:26:23 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA06103 for linac-eng-list; Fri, 30 Aug 2002 13:43:36 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA06074 for ; Fri, 30 Aug 2002 13:43:34 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Fri, 30 Aug 2002 13:47:57 -0500 Message-ID: From: "Turner, Guy" To: linac-eng@plato.aristotle.net Subject: RE: Varian CL2100EX morning check info. Date: Fri, 30 Aug 2002 13:47:55 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: linac-eng@plato.aristotle.net Subject: RE: Varian CL2100EX morning check info. Date: Fri, 30 Aug 2002 13:47:55 -0500 Sender: owner-linac-eng@plato.aristotle.net Same here. When you are in-house you know your machines pretty well. I don't really need historical logs to tell me trends. The logs used to help me when I was with Varian and didn't have day-to-day experience with the machine. -----Original Message----- From: Tim Cullen [mailto:tcullen@wfubmc.edu] Sent: Friday, August 30, 2002 10:51 AM To: linac-eng@plato.aristotle.net Subject: RE: Varian CL2100EX morning check info. I deleted the printers a while back due to space also. Still have them laying around and drag them out when doing PM work and for scope printouts. The info is saved and has more than enough record log to help diagnose a current problem (older vers were 100 and later vers 200?). This log can be backed up to diskette periodically for manipulation later. I'm going to be truthful here and say that I have only used the logs for comparison in the past other than a couple of occasions where I was looking at a vacuum activity problem. I can't say whether or not there could have been times where a problem could have been avoided had I been keeping a vigilant eye on the MC data log?? My guess is probably not. I really only look at them now when doing the PMs and when looking at the comm files from time to time. Tim > -----Original Message----- > From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] > Sent: Thursday, August 29, 2002 6:19 PM > To: linac-eng@plato.aristotle.net > Subject: Re: Varian CL2100EX morning check info. > > > G'day, > > I have no idea what or how the latest version of V's software > does it's stuff. BUT for years I have been regularly > gathering the MC info on floppy disk. > > Prior to version 6 S/W the MC files were written to > c:\varian\mc\mc.nn where nn is a digit between 1 and 100 (200 > in V5). The file INDEX. has a byte of info which describes > the next file number to be written. The older files are > overwritten. This gives you 100 (200) mornings worth of data. > > Our local V rep is upset by the fact that I don't look after > the printers. They hardly work at all for his PMI visits......... > > I have also put together an XL spreadsheet which then > massages the MC data and displays trends and alarms. It is > freeware and REAL useful. I'm afraid the coding is more > fitting an italian restraunt (read spaghetti) but it works. > > Another thought is an automatic printer sharer or move the > printers further away and use line drivers. > > :D > > >>> "Wilson, Jim" 30/08/02 03:30:16 >>> > I have 2 new Varian CL2100EX accelerators in a new > department. The console area is limited on space and the > technicians would like to get rid of the printers used for > printing out the daily warm up information. Does anyone know > if this information is stored in such a manner as it may be > easily retrieved and either printed out or put into a > computer for analysis by our engineering department? How far > back do these logs go before they are written over? Thank you > for your prompt, professional response! > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > > ************************************************************** > ************** > This message is intended for the sole use of the individual > and entity to whom it is addressed, and may contain > information that is privileged, confidential and exempt from > disclosure under applicable law. If you are not the intended > addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, > copy, disclose or distribute to anyone the message or any > information contained in the message. If you have received > this message in error, please immediately advise the sender > by reply email and delete the message. Thank you very > much. > > > > ********************************************************************** > ** This email and attachments have been scanned for content > and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email > in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board > ********************************************************************** > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Aug 30 21:48:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17krkj-0005QN-00; Fri, 30 Aug 2002 21:48:21 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 908031112F1; Fri, 30 Aug 2002 21:33:15 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA09656 for linac-eng-list; Fri, 30 Aug 2002 13:56:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA09644 for ; Fri, 30 Aug 2002 13:56:29 -0500 (CDT) Received: by igate-int.hbocvan.com; id OAA15604; Fri, 30 Aug 2002 14:56:23 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma015491; Fri, 30 Aug 02 14:56:17 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Fri, 30 Aug 2002 14:56:05 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Varian CL2100EX morning check info. Date: Fri, 30 Aug 2002 14:56:02 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Varian CL2100EX morning check info. Date: Fri, 30 Aug 2002 14:56:02 -0400 Sender: owner-linac-eng@plato.aristotle.net I deleted the printers also. To bad Varian didn't use a high quality laser printer instead. Could have used those on some of the other computers in the Dept. I guess you have to stick with the DOS based drivers. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 -----Original Message----- From: Tim Cullen [mailto:tcullen@wfubmc.edu] Sent: Friday, August 30, 2002 11:51 AM To: linac-eng@plato.aristotle.net Subject: RE: Varian CL2100EX morning check info. I deleted the printers a while back due to space also. Still have them laying around and drag them out when doing PM work and for scope printouts. The info is saved and has more than enough record log to help diagnose a current problem (older vers were 100 and later vers 200?). This log can be backed up to diskette periodically for manipulation later. I'm going to be truthful here and say that I have only used the logs for comparison in the past other than a couple of occasions where I was looking at a vacuum activity problem. I can't say whether or not there could have been times where a problem could have been avoided had I been keeping a vigilant eye on the MC data log?? My guess is probably not. I really only look at them now when doing the PMs and when looking at the comm files from time to time. Tim > -----Original Message----- > From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] > Sent: Thursday, August 29, 2002 6:19 PM > To: linac-eng@plato.aristotle.net > Subject: Re: Varian CL2100EX morning check info. > > > G'day, > > I have no idea what or how the latest version of V's software > does it's stuff. BUT for years I have been regularly > gathering the MC info on floppy disk. > > Prior to version 6 S/W the MC files were written to > c:\varian\mc\mc.nn where nn is a digit between 1 and 100 (200 > in V5). The file INDEX. has a byte of info which describes > the next file number to be written. The older files are > overwritten. This gives you 100 (200) mornings worth of data. > > Our local V rep is upset by the fact that I don't look after > the printers. They hardly work at all for his PMI visits......... > > I have also put together an XL spreadsheet which then > massages the MC data and displays trends and alarms. It is > freeware and REAL useful. I'm afraid the coding is more > fitting an italian restraunt (read spaghetti) but it works. > > Another thought is an automatic printer sharer or move the > printers further away and use line drivers. > > :D > > >>> "Wilson, Jim" 30/08/02 03:30:16 >>> > I have 2 new Varian CL2100EX accelerators in a new > department. The console area is limited on space and the > technicians would like to get rid of the printers used for > printing out the daily warm up information. Does anyone know > if this information is stored in such a manner as it may be > easily retrieved and either printed out or put into a > computer for analysis by our engineering department? How far > back do these logs go before they are written over? Thank you > for your prompt, professional response! > > Jim Wilson > Clinical Engineering > Providence St.Vincent Hospital > > > ************************************************************** > ************** > This message is intended for the sole use of the individual > and entity to whom it is addressed, and may contain > information that is privileged, confidential and exempt from > disclosure under applicable law. If you are not the intended > addressee, nor authorized to receive for the intended > addressee, you are hereby notified that you may not use, > copy, disclose or distribute to anyone the message or any > information contained in the message. If you have received > this message in error, please immediately advise the sender > by reply email and delete the message. Thank you very > much. > > > > ********************************************************************** > ** This email and attachments have been scanned for content > and viruses > and is believed to be clean ** > > This email or attachments may contain confidential or legally > privileged information intended for the sole use of the addressee(s). > Any use, redistribution, disclosure, or reproduction of this message, > except as intended, is prohibited. If you received this email > in error, > please notify the sender and remove all copies of the message, > including any attachments. Any views or opinions expressed in this > email (unless otherwise stated) may not represent those of Canterbury > District Health Board > ********************************************************************** > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Aug 31 00:01:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ktpN-0005Yq-00; Sat, 31 Aug 2002 00:01:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EABBC1112F1; Fri, 30 Aug 2002 23:46:08 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA17477 for linac-eng-list; Fri, 30 Aug 2002 15:41:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA17473 for ; Fri, 30 Aug 2002 15:41:46 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g7UKfjrF249440; Fri, 30 Aug 2002 16:41:45 -0400 Message-ID: <3D6FD78A.10900@hsc.vcu.edu> Date: Fri, 30 Aug 2002 16:37:30 -0400 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.0) Gecko/20020530 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Eason, Guy" Cc: "Linac-Engineering (E-mail)" Subject: Re: Varian CL2100EX morning check info. References: Content-Type: multipart/alternative; boundary="------------060609020606010508020306" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 30 Aug 2002 16:37:30 -0400 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: "Eason, Guy" Cc: "Linac-Engineering (E-mail)" Subject: Re: Varian CL2100EX morning check info. Sender: owner-linac-eng@plato.aristotle.net --------------060609020606010508020306 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Eason, Guy wrote: >I deleted the printers also. To bad Varian didn't use a high quality laser >printer instead. Could have used those on some of the other computers in >the Dept. I guess you have to stick with the DOS based drivers. > >Guy Eason >Linear Engineer >Radiation Oncology >Phoebe Putney Memorial Hospital >800 490-0684 >(229) 312-2280 > > >-----Original Message----- >From: Tim Cullen [mailto:tcullen@wfubmc.edu] >Sent: Friday, August 30, 2002 11:51 AM >To: linac-eng@plato.aristotle.net >Subject: RE: Varian CL2100EX morning check info. > > >I deleted the printers a while back due to space also. Still have them >laying around and drag them out when doing PM work and for scope >printouts. The info is saved and has more than enough record log to help >diagnose a current problem (older vers were 100 and later vers 200?). >This log can be backed up to diskette periodically for manipulation >later. >I'm going to be truthful here and say that I have only used the logs for >comparison in the past other than a couple of occasions where I was >looking at a vacuum activity problem. I can't say whether or not there >could have been times where a problem could have been avoided had I been >keeping a vigilant eye on the MC data log?? My guess is probably not. I >really only look at them now when doing the PMs and when looking at the >comm files from time to time. >Tim > > > > >>-----Original Message----- >>From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] >>Sent: Thursday, August 29, 2002 6:19 PM >>To: linac-eng@plato.aristotle.net >>Subject: Re: Varian CL2100EX morning check info. >> >> >>G'day, >> >>I have no idea what or how the latest version of V's software >>does it's stuff. BUT for years I have been regularly >>gathering the MC info on floppy disk. >> >>Prior to version 6 S/W the MC files were written to >>c:\varian\mc\mc.nn where nn is a digit between 1 and 100 (200 >>in V5). The file INDEX. has a byte of info which describes >>the next file number to be written. The older files are >>overwritten. This gives you 100 (200) mornings worth of data. >> >>Our local V rep is upset by the fact that I don't look after >>the printers. They hardly work at all for his PMI visits......... >> >>I have also put together an XL spreadsheet which then >>massages the MC data and displays trends and alarms. It is >>freeware and REAL useful. I'm afraid the coding is more >>fitting an italian restraunt (read spaghetti) but it works. >> >>Another thought is an automatic printer sharer or move the >>printers further away and use line drivers. >> >>:D >> >> >> >>>>>"Wilson, Jim" 30/08/02 03:30:16 >>> >>>>> >>>>> >>I have 2 new Varian CL2100EX accelerators in a new >>department. The console area is limited on space and the >>technicians would like to get rid of the printers used for >>printing out the daily warm up information. Does anyone know >>if this information is stored in such a manner as it may be >>easily retrieved and either printed out or put into a >>computer for analysis by our engineering department? How far >>back do these logs go before they are written over? Thank you >>for your prompt, professional response! >> >>Jim Wilson >>Clinical Engineering >>Providence St.Vincent Hospital >> >> >>************************************************************** >>************** >>This message is intended for the sole use of the individual >>and entity to whom it is addressed, and may contain >>information that is privileged, confidential and exempt from >>disclosure under applicable law. If you are not the intended >>addressee, nor authorized to receive for the intended >>addressee, you are hereby notified that you may not use, >>copy, disclose or distribute to anyone the message or any >>information contained in the message. If you have received >>this message in error, please immediately advise the sender >>by reply email and delete the message. Thank you very >>much. >> >> >> >>********************************************************************** >>** This email and attachments have been scanned for content >>and viruses >>and is believed to be clean ** >> >>This email or attachments may contain confidential or legally >>privileged information intended for the sole use of the addressee(s). >>Any use, redistribution, disclosure, or reproduction of this message, >>except as intended, is prohibited. If you received this email >>in error, >>please notify the sender and remove all copies of the message, >>including any attachments. Any views or opinions expressed in this >>email (unless otherwise stated) may not represent those of Canterbury >>District Health Board >>********************************************************************** >> >> >> >> > > > > Ditto , I have 3 2100 and one 600c, none with a printer attached. Whenever I feel the need to look at MC and DD files I just copy them over and look at them on my desktop. Chris, --------------060609020606010508020306 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Eason, Guy wrote:
    I deleted the printers also.  To bad Varian didn't use a high quality laser
printer instead.  Could have used those on some of the other computers in
the Dept.  I guess you have to stick with the DOS based drivers.  

Guy Eason
Linear Engineer
Radiation Oncology
Phoebe Putney Memorial Hospital
800 490-0684
(229) 312-2280


-----Original Message-----
From: Tim Cullen [mailto:tcullen@wfubmc.edu]
Sent: Friday, August 30, 2002 11:51 AM
To: linac-eng@plato.aristotle.net
Subject: RE: Varian CL2100EX morning check info.


I deleted the printers a while back due to space also. Still have them
laying around and drag them out when doing PM work and for scope
printouts. The info is saved and has more than enough record log to help
diagnose a current problem (older vers were 100 and later vers 200?).
This log can be backed up to diskette periodically for manipulation
later.
I'm going to be truthful here and say that I have only used the logs for
comparison in the past other than a couple of occasions where I was
looking at a vacuum activity problem.  I can't say whether or not there
could have been times where a problem could have been avoided had I been
keeping a vigilant eye on the MC data log?? My guess is probably not. I
really only look at them now when doing the PMs and when looking at the
comm files from time to time.
Tim


  
    -----Original Message-----
From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] 
Sent: Thursday, August 29, 2002 6:19 PM
To: linac-eng@plato.aristotle.net
Subject: Re: Varian CL2100EX morning check info.


G'day,

I have no idea what or how the latest version of V's software 
does it's stuff. BUT for years I have been regularly 
gathering the MC info on floppy disk. 

Prior to version 6 S/W the MC files were written to 
c:\varian\mc\mc.nn where nn is a digit between 1 and 100 (200 
in V5). The file INDEX. has a byte of info which describes 
the next file number to be written. The older files are 
overwritten. This gives you 100 (200) mornings worth of data. 

Our local V rep is upset by the fact that I don't look after 
the printers. They hardly work at all for his PMI visits.........

I have also put together an XL spreadsheet which then 
massages the MC data and displays trends and alarms. It is 
freeware and REAL useful. I'm afraid the coding is more 
fitting an italian restraunt (read spaghetti) but it works.

Another thought is an automatic printer sharer or move the 
printers further away and use line drivers.

:D

    
    "Wilson, Jim" <JWilson3@providence.org> 30/08/02 03:30:16 >>>
          
    I have 2 new Varian CL2100EX accelerators in a new 
department. The console area is limited on space and the 
technicians would like to get rid of the printers used for 
printing out the daily warm up information. Does anyone know 
if this information is stored in such a manner as it may be 
easily retrieved and either printed out or put into a 
computer for analysis by our engineering department? How far 
back do these logs go before they are written over? Thank you 
for your prompt, professional response!

Jim Wilson
Clinical Engineering
Providence St.Vincent Hospital

 
**************************************************************
**************
This message is intended for the sole use of the individual 
and entity to whom it is addressed, and may contain 
information that is privileged, confidential and exempt from 
disclosure under applicable law.  If you are not the intended 
addressee, nor authorized to receive for the intended 
addressee, you are hereby notified that you may not use, 
copy, disclose or distribute to anyone the message or any 
information contained in the message.  If you have received 
this message in error, please immediately advise the sender 
by reply email and delete the message.  Thank you very
much.                                                         
              


**********************************************************************
** This email and attachments have been scanned for content 
and viruses 
and is believed to be clean **

This email or attachments may contain confidential or legally 
privileged information intended for the sole use of the addressee(s). 
Any use, redistribution, disclosure, or reproduction of this message, 
except as intended, is prohibited. If you received this email 
in error, 
please notify the sender and remove all copies of the message, 
including any attachments. Any views or opinions expressed in this 
email (unless otherwise stated) may not represent those of Canterbury 
District Health Board
**********************************************************************
    Ditto , I have 3 2100 and one 600c, none with a printer attached. Whenever I feel the need to look at MC and DD files I just copy
    them over and look at them on my desktop.

    Chris,

    --------------060609020606010508020306-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 02 09:50:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17llyL-0003Lb-00; Mon, 02 Sep 2002 09:50:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 010881112F9; Mon, 2 Sep 2002 09:34:08 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA01537 for linac-eng-list; Mon, 2 Sep 2002 02:24:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nt-tudor00.cancercare.co.za (mail.cancercare.co.za [196.2.159.43]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id CAA01533 for ; Mon, 2 Sep 2002 02:24:30 -0500 (CDT) Received: by NT-TUDOR00 with Internet Mail Service (5.5.2650.21) id ; Mon, 2 Sep 2002 09:24:10 +0200 Message-ID: From: Will Pazda To: "'linac-eng@plato.aristotle.net'" Subject: Siemens ZXT Couch Date: Mon, 2 Sep 2002 21:24:20 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Will Pazda To: "'linac-eng@plato.aristotle.net'" Subject: Siemens ZXT Couch Date: Mon, 2 Sep 2002 21:24:20 +0200 Sender: owner-linac-eng@plato.aristotle.net Hi, Quite some time ago, someone wrote to the list with a source for the membrame touch panels for the ZXT Couch. He could get just the membrame and not the whole assembly which is what Siemens supplies. I lost the contact details, can anybody help or suggest an alternative source, I have a couple of couches that could do with a replacement, the up/down buttons are pretty much worn through. Thanks, Will Pazda Cape Town - South Africa 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 02 09:50:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17llyM-0003Le-00; Mon, 02 Sep 2002 09:50:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 258361112FA; Mon, 2 Sep 2002 09:34:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA01583 for linac-eng-list; Mon, 2 Sep 2002 02:30:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nt-tudor00.cancercare.co.za (mail.cancercare.co.za [196.2.159.43]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id CAA01579 for ; Mon, 2 Sep 2002 02:30:34 -0500 (CDT) Received: by NT-TUDOR00 with Internet Mail Service (5.5.2650.21) id ; Mon, 2 Sep 2002 09:30:10 +0200 Message-ID: From: Will Pazda To: "Linac-Eng (E-mail)" Subject: Varian Console s/w Date: Mon, 2 Sep 2002 21:30:18 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Will Pazda To: "Linac-Eng (E-mail)" Subject: Varian Console s/w Date: Mon, 2 Sep 2002 21:30:18 +0200 Sender: owner-linac-eng@plato.aristotle.net Hi, We have developed an in-house record and verify program which we'd like to hook up to a Clinac 2300 instead of using Varis. Does anybody have any information regarding the communication format / protocol that the Linac uses to communicate ?. Thanks & regards, Will Pazda Cape Town - South Africa 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 02 19:27:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17luyp-0000hE-00; Mon, 02 Sep 2002 19:27:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B30E61112FA; Mon, 2 Sep 2002 19:11:05 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA09018 for linac-eng-list; Mon, 2 Sep 2002 12:03:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA09014 for ; Mon, 2 Sep 2002 12:03:06 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 17luax-0001OQ-00; Mon, 02 Sep 2002 18:02:35 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D6DF5AB00092935 for linac-eng@plato.aristotle.net; Mon, 2 Sep 2002 18:02:34 +0100 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-3 6.5.026) id 3D6F6E530007B919 for linac-eng@plato.aristotle.net; Mon, 2 Sep 2002 18:02:35 +0100 X-Internal-ID: 3D3BDCE0001D4F71 Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108); 2 Sep 2002 18:04:07 +0100 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Mon, 2 Sep 2002 18:03:41 +0100 Message-ID: <4BD1673C955CD41182DA00508BACF2DF01BD4F70@YGC-MAIL> From: "Jordan, Tom" To: linac-eng@plato.aristotle.net Cc: sgensens@cspmedical.com Subject: RE: Fibre optic backpointer retraction Date: Mon, 2 Sep 2002 18:03:40 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3D3BDCE0001D4F71 From: "Jordan, Tom" To: linac-eng@plato.aristotle.net Cc: sgensens@cspmedical.com Subject: RE: Fibre optic backpointer retraction Date: Mon, 2 Sep 2002 18:03:40 +0100 Sender: owner-linac-eng@plato.aristotle.net dear sirs, Having read the original communication on this issue I quickly forgot about it having found little of interest to me personally, or that could possibly cause offence (other than to a very over-sensitive personality). We are in all walks of life dealing with organisations which may 'have not yet responded' for whatever reason- pressure of work, time to investigate a solution, or whatever. No reasonable person would particularly think badly of a company from that statement however casually and incautiously it may have been made. However, the appointed guardian of the company's image has clearly caused many orders of magnitude greater damage to that image of by an overtly aggressive, threatening and completely out of proportion response to the apparent 'insult'. On that basis of obvious failure in his duty to perform that job adequately for his company I hope he will have the good grace to resign. If not, perhaps some face might be saved by publication of a retraction to this list and an apology to all list members for publicly writing such an offensive and unwarranted attack on an individual thereof. Yours, T J Jordan Head of Radiotherapy Physics North Wales Medical Physics Conwy &Denbighshire NHS Trust Bodelwyddan Denbighshire LL18 5UJ Tel. 01745 445111, Fax. 01745 445103 The opinions expressed in this email are entirely my own and do not reflect the views of Conwy & Denbighshire NHS Trust. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Sep 03 15:38:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mDsa-0003bZ-00; Tue, 03 Sep 2002 15:38:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C529D1112F4; Tue, 3 Sep 2002 15:21:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA23097 for linac-eng-list; Tue, 3 Sep 2002 07:51:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA23093 for ; Tue, 3 Sep 2002 07:51:43 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: Varian Console s/w Date: Tue, 3 Sep 2002 08:51:08 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386E9@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Varian Console s/w Thread-Index: AcJSXItSiFoc628jRiSUEQqXI8Pu4QA69wtw From: "Tim Cullen" To: "Will Pazda" , "Linac-Eng (E-mail)" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA23094 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: RE: Varian Console s/w Date: Tue, 3 Sep 2002 08:51:08 -0400 Thread-Topic: Varian Console s/w Thread-Index: AcJSXItSiFoc628jRiSUEQqXI8Pu4QA69wtw From: "Tim Cullen" To: "Will Pazda" , "Linac-Eng (E-mail)" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA23094 Sender: owner-linac-eng@plato.aristotle.net Will, At one time Varian had a serial interface engineering reference manual. The part # was 882995-02. It should still be available and hopefully updated. Tim > -----Original Message----- > From: Will Pazda [mailto:will.pazda@rxl.co.za] > Sent: Monday, September 02, 2002 3:30 PM > To: Linac-Eng (E-mail) > Subject: Varian Console s/w > > > Hi, > > We have developed an in-house record and verify program which > we'd like to hook up to a Clinac 2300 instead of using Varis. > Does anybody have any information regarding the communication > format / protocol that the Linac uses to communicate ?. > > Thanks & regards, > > Will Pazda > Cape Town - South Africa > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 04 01:04:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mMjB-00077F-00; Wed, 04 Sep 2002 01:04:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F423C1112F2; Wed, 4 Sep 2002 00:48:19 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA08655 for linac-eng-list; Tue, 3 Sep 2002 17:38:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA08651 for ; Tue, 3 Sep 2002 17:38:11 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 3 Sep 2002 16:41:39 -0600 Received: (from spc75 [172.24.56.75]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002090316383216077 for ; Tue, 03 Sep 2002 16:38:32 -0600 From: "Bob Penley" To: "linac (E-mail)" Subject: Elekta SLS_38_CT Date: Tue, 3 Sep 2002 16:38:44 -0600 Message-ID: <000201c2539a$a9358080$4b3818ac@scadomain.local> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bob Penley" To: "linac (E-mail)" Subject: Elekta SLS_38_CT Date: Tue, 3 Sep 2002 16:38:44 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Has anybody found a supplier for the (push buttons example # 4522 111 4626) switch buttons on the hand held control of the Elekta SLS simulators, as these parts are no longer available from Elekta. Only a complete new style hand control is available from Elekta. Also we are looking for the small fans in the CT detector option. as there are no part # for this item in any of the parts list for the CT or sim. Thank You Robert Penley Senior Physics Technician Saskatoon Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 04 04:03:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mPVm-0007k8-00; Wed, 04 Sep 2002 04:03:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9165B1112F4; Wed, 4 Sep 2002 03:46:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA10948 for linac-eng-list; Tue, 3 Sep 2002 20:40:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.63]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA10944 for ; Tue, 3 Sep 2002 20:40:28 -0500 (CDT) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 3 Sep 2002 21:39:46 -0400 Message-ID: From: "Rozenblat, Alex" To: "'Will Pazda'" , "'linac-eng@plato.aristotle.net'" Subject: RE: Siemens ZXT Couch Date: Tue, 3 Sep 2002 21:39:38 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'Will Pazda'" , "'linac-eng@plato.aristotle.net'" Subject: RE: Siemens ZXT Couch Date: Tue, 3 Sep 2002 21:39:38 -0400 Sender: owner-linac-eng@plato.aristotle.net I know, I know. Ask me! Alex Rozenblat -----Original Message----- From: Will Pazda [mailto:will.pazda@rxl.co.za] Sent: 02 September 2002 15:24 To: 'linac-eng@plato.aristotle.net' Subject: Siemens ZXT Couch Hi, Quite some time ago, someone wrote to the list with a source for the membrame touch panels for the ZXT Couch. He could get just the membrame and not the whole assembly which is what Siemens supplies. I lost the contact details, can anybody help or suggest an alternative source, I have a couple of couches that could do with a replacement, the up/down buttons are pretty much worn through. Thanks, Will Pazda Cape Town - South Africa 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 04 15:05:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mZqC-0007GM-00; Wed, 04 Sep 2002 15:05:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 346591112F4; Wed, 4 Sep 2002 14:48:14 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA18771 for linac-eng-list; Wed, 4 Sep 2002 07:40:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hccexch.harringtoncc.org ([207.19.3.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA18761 for ; Wed, 4 Sep 2002 07:40:03 -0500 (CDT) Received: from a9a5c1.harringtoncc.org ([192.168.1.64] unverified) by hccexch.harringtoncc.org with Microsoft SMTPSVC(5.0.2195.5329); Wed, 4 Sep 2002 07:45:59 -0500 Message-Id: <4.3.2.7.1.20020904073528.00aaf940@192.168.1.7> X-Sender: srobinson@192.168.1.7 X-Mailer: QUALCOMM Windows Eudora Version 4.3.2 Date: Wed, 04 Sep 2002 07:47:01 -0500 To: linac-eng@plato.aristotle.net From: srobinson Subject: Culligan Filters Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-OriginalArrivalTime: 04 Sep 2002 12:46:00.0302 (UTC) FILETIME=[057C88E0:01C25411] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: srobinson@192.168.1.7 Date: Wed, 04 Sep 2002 07:47:01 -0500 To: linac-eng@plato.aristotle.net From: srobinson Subject: Culligan Filters X-OriginalArrivalTime: 04 Sep 2002 12:46:00.0302 (UTC) FILETIME=[057C88E0:01C25411] Sender: owner-linac-eng@plato.aristotle.net Does anybody have information about what they did in removing their Culligan filters. I am thinking about removing mine and just replacing them with the Varian replacements and skipping the use of chemicals. I have a 2100C/D and 23EX that get regular bi-annual water changes. I was wondering to those who did just that, how it was working out? And to those with a different view point to share them with me. Thanks, Steve Robinson end Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 04 17:23:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mbzh-0001Pa-00; Wed, 04 Sep 2002 17:23:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 320451112F4; Wed, 4 Sep 2002 17:06:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA20833 for linac-eng-list; Wed, 4 Sep 2002 09:45:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dc-mx13.cluster1.charter.net (dc-mx13.cluster1.charter.net [209.225.8.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA20829 for ; Wed, 4 Sep 2002 09:45:54 -0500 (CDT) Received: from [66.169.49.105] (HELO x4j7e8) by dc-mx13.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 93123874; Wed, 04 Sep 2002 10:46:32 -0400 Message-ID: <000b01c25422$0d169440$6931a942@charter.net> From: "Bob Huff" To: , "srobinson" References: <4.3.2.7.1.20020904073528.00aaf940@192.168.1.7> Subject: Re: Culligan Filters Date: Wed, 4 Sep 2002 10:47:53 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bob Huff" To: , "srobinson" Subject: Re: Culligan Filters Date: Wed, 4 Sep 2002 10:47:53 -0400 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net They replaced the culligan water filters with an Inhibited Water System. The cost to contract customers was around $1,000 with all fittings and the chemicals included. I don't have the part number handy, but can get it if you need. Bob Huff Linear Accelerator Engineer 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 04 23:02:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mhIL-0003Ca-00; Wed, 04 Sep 2002 23:02:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4007F1112F4; Wed, 4 Sep 2002 22:45:39 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA28727 for linac-eng-list; Wed, 4 Sep 2002 15:41:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA28645 for ; Wed, 4 Sep 2002 15:41:16 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA19799 for ; Thu, 5 Sep 2002 08:37:53 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Thu, 5 Sep 2002 08:43:12 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Thu, 05 Sep 2002 08:40:18 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 05 Sep 2002 08:40:00 +1200 From: "Dave Pinchin" To: , Subject: Re: Culligan Filters Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA28668 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 05 Sep 2002 08:40:00 +1200 From: "Dave Pinchin" To: , Subject: Re: Culligan Filters Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA28668 Sender: owner-linac-eng@plato.aristotle.net G'day from New Zealand, Firstly consider the problems of our national air carrier. That's the one over there with only one wing........... It is now a well established fact that there was a corrosion problem with the use of ultra-pure water in linacs. (I don't believe the little grey tube was innocent either). I cannot see the difference between regularly replacing the ultrapure water and keeping the culligan. The problems of impure water are obvious. The more 'fertiliser' the more growth. There are also electrolytic issues regarding unlike metals and live pipes etc. In my view it is important to put some anti corrosive into the pot. Ditto some anti grow. To choose the amount of each, and the possible interactions with various pipes and fittings, and breakdown with radiation is certainly outside my skill base. therfore I have chosen to do V's mod and to use the dosage of V's recommended chemicals. This should give us the best chance of not having our wings fall off. (Remembering of course that the Culligan was V's idea in the first place). Now about the actual upgrade... It is very simple and takes a couple of hours. Basically the culligan is removed along with one hose and a filter unit is fitted instead. There is a flow restrictor in the replacement hose. Two problems. 1/ the existing flow meter. The instructions are not too clear on whether to remove or leave. 2/ Both the hoses are about 200mm too short to reach comfortably. Dave. >>> srobinson 5/09/02 00:47:01 >>> Does anybody have information about what they did in removing their Culligan filters. I am thinking about removing mine and just replacing them with the Varian replacements and skipping the use of chemicals. I have a 2100C/D and 23EX that get regular bi-annual water changes. I was wondering to those who did just that, how it was working out? And to those with a different view point to share them with me. Thanks, Steve Robinson end Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 12:18:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mtiA-0000QS-00; Thu, 05 Sep 2002 12:18:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2C3621112F5; Thu, 5 Sep 2002 12:00:56 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA08962 for linac-eng-list; Thu, 5 Sep 2002 04:48:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id EAA08957 for ; Thu, 5 Sep 2002 04:48:41 -0500 (CDT) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Thu, 5 Sep 2002 11:48:24 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Thu, 5 Sep 2002 11:48:24 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A790@exchange-5.orebroll.se> To: linac-eng@plato.aristotle.net Subject: SV: Culligan Filters Date: Thu, 5 Sep 2002 11:48:21 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA08958 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: linac-eng@plato.aristotle.net Subject: SV: Culligan Filters Date: Thu, 5 Sep 2002 11:48:21 +0200 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA08958 Sender: owner-linac-eng@plato.aristotle.net I agree with Dave, ie use the chemical goo. It contains a chemical which actually inhibits copper from being dissolved by making a layer of metal complex a few molecules thick over the copper (and other metals too). I would not (now) like to be without this protection. There are, however, alternative suppliers of the chemicals, even if they are not in exactly the same proportions the chemicals do the same job. /Tel of Sweden. -----Ursprungligt meddelande----- Från: srobinson [mailto:srobinson@harringtoncc.org] Skickat: den 4 september 2002 14:47 Till: linac-eng@plato.aristotle.net Ämne: Culligan Filters Does anybody have information about what they did in removing their Culligan filters. I am thinking about removing mine and just replacing them with the Varian replacements and skipping the use of chemicals. I have a 2100C/D and 23EX that get regular bi-annual water changes. I was wondering to those who did just that, how it was working out? And to those with a different view point to share them with me. Thanks, Steve Robinson end Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 12:22:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mtmb-0000T6-00; Thu, 05 Sep 2002 12:22:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0F99C1112F5; Thu, 5 Sep 2002 12:05:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA08992 for linac-eng-list; Thu, 5 Sep 2002 04:56:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA08988 for ; Thu, 5 Sep 2002 04:56:24 -0500 (CDT) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855; Thu, 05 Sep 2002 06:59:35 -0300 From: "Greg MacKinnon" To: "LinacEng" , "srobinson" Subject: RE: Culligan Filters Date: Thu, 5 Sep 2002 06:54:48 -0300 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: <4.3.2.7.1.20020904073528.00aaf940@192.168.1.7> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Greg MacKinnon" To: "LinacEng" , "srobinson" Subject: RE: Culligan Filters Date: Thu, 5 Sep 2002 06:54:48 -0300 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: <4.3.2.7.1.20020904073528.00aaf940@192.168.1.7> Sender: owner-linac-eng@plato.aristotle.net I have also remove the Culligan Filters but not have added the new chemical filter kit yet. I change the water every three months. I do have another question in regards to the conductivity. Varain recommend to start with water with a value of 5 microseimen/cm or less. Without the Culligan filter which use to maintain the water to a value of around .9 mirocseimen/cm until full depleted, what kind of number does the new chemical filter kit keep the water conductivity at over the six months prior to adding more chemicals? __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8076 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of srobinson Sent: Wednesday, September 04, 2002 9:47 AM To: linac-eng@plato.aristotle.net Subject: Culligan Filters Does anybody have information about what they did in removing their Culligan filters. I am thinking about removing mine and just replacing them with the Varian replacements and skipping the use of chemicals. I have a 2100C/D and 23EX that get regular bi-annual water changes. I was wondering to those who did just that, how it was working out? And to those with a different view point to share them with me. Thanks, Steve Robinson end Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 13:43:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mv36-0001lV-00; Thu, 05 Sep 2002 13:43:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6972F1112F5; Thu, 5 Sep 2002 13:26:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA10422 for linac-eng-list; Thu, 5 Sep 2002 06:14:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA10418 for ; Thu, 5 Sep 2002 06:14:46 -0500 (CDT) From: steven.young@sth.nhs.uk Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 17muaW-0002G4-00; Thu, 05 Sep 2002 12:14:16 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D6DF5AB000F1000 for linac-eng@plato.aristotle.net; Thu, 5 Sep 2002 12:14:16 +0100 Received: from bilbo.wph.trent.nhs.uk (212.196.142.129) by relay.nhs.uk (Syntegra-4 6.5.026) id 3D6F6E7F000FB559 for linac-eng@plato.aristotle.net; Thu, 5 Sep 2002 12:14:16 +0100 Received: by bilbo.wph.trent.nhs.uk with Internet Mail Service (5.5.2232.9) id ; Thu, 5 Sep 2002 12:13:09 +0100 Message-ID: <697DE9C94DFED211A6DB00A0C9067D87F9465E@bilbo.wph.trent.nhs.uk> To: linac-eng@plato.aristotle.net Subject: Pantak HF150 Date: Thu, 5 Sep 2002 12:13:07 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: steven.young@sth.nhs.uk To: linac-eng@plato.aristotle.net Subject: Pantak HF150 Date: Thu, 5 Sep 2002 12:13:07 +0100 Sender: owner-linac-eng@plato.aristotle.net Hello there, Does anyone out there have any idea of the cause of the "Unit not on line" fault that can occur with both the HF150 and the DXT300? In particular, from where does the signal originate that's used to trip this interlock? Any drawing/chip references would be appreciated. Thanks very much, Steven Young Radiotherapy Physics Weston Park Hospital Sheffield UK And in answer to a recent posting, no it's not the weather... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 13:48:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mv7J-0001v1-00; Thu, 05 Sep 2002 13:48:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1B8061112F5; Thu, 5 Sep 2002 13:30:58 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA10477 for linac-eng-list; Thu, 5 Sep 2002 06:24:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA10473 for ; Thu, 5 Sep 2002 06:24:44 -0500 (CDT) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Thu, 5 Sep 2002 07:28:15 -0400 Message-ID: <1082075133C0D511AAC8000255F0072924C51B@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Thu, 5 Sep 2002 07:28:14 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Thu, 5 Sep 2002 07:28:14 -0400 Sender: owner-linac-eng@plato.aristotle.net Gentlemen, I have a Varian Clinac 2100SC, serial number 1884. It is a duel energy machine with only the 6x beam used with 4 electrons. We are tied into the Impac system for our record and verify system. Over the last week we have been experiencing some rather strange problems you may be able to assist with. Our software version is 6.1 First problem is a hardware fault which indicates that the gantry readout primary and secondary pots are mismatched. When I have checked this the deviation is 0.8** for the primary and 1.2** for the secondary. I think this is within the limits set by Varian. The actual readings for the gantry R and SPRO gantry are within .15 (4.25, 4.37) at all 4 quadrants. Our second problem is communications timeouts which indicate a DBDE export data 01, 02. Our third problem is intermittently the unit will stop on a time fault. Example is set 40mu for treatment with a time setting of .13 min. The unit will deliver 38mu and time will shut unit off with reading of .13. The Physics staff and I have tested for dose rate calibration and run the unit at various time and mu settings with no problem. The dose rate comes up as it should and the time calibration matches what it should for the mu set. I have not had the privilege of attending the latest maintenance course for this version of machine and software. We do not have any dynamic capability at this time. Any assistance would be greatly appreciated and thanks in advance is given. Bill Hughes Regional Cancer Center Erie, Pa. whughes@trcc.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 15:28:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mwgh-0003rl-00; Thu, 05 Sep 2002 15:28:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E332F1112F5; Thu, 5 Sep 2002 15:11:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA11903 for linac-eng-list; Thu, 5 Sep 2002 08:03:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm032.netvigator.com (imsm032.netvigator.com [218.102.23.102]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA11899 for ; Thu, 5 Sep 2002 08:03:44 -0500 (CDT) Received: (qmail 8241 invoked from network); 5 Sep 2002 13:03:28 -0000 Received: from pcd628247.netvigator.com (HELO kyeung) (218.102.160.247) by imsm032.netvigator.com with SMTP; 5 Sep 2002 13:03:28 -0000 Message-ID: <000a01c254db$c01ea500$3fe9fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Elscient : HeliCAT II Date: Thu, 5 Sep 2002 20:57:10 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01C2551E.CDDD2FC0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Elscient : HeliCAT II Date: Thu, 5 Sep 2002 20:57:10 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0007_01C2551E.CDDD2FC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, HeliCAT II CT Version 4.4 Could anyone give advice to the following error messages shown in the = above captioned CT:- 1. Inverter DC bus midpoint voltage monitor not working properly 2. BPOS toggle rate too slow. Thanks in advance. Kim Yeung ------=_NextPart_000_0007_01C2551E.CDDD2FC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
            = HeliCAT II CT=20 Version 4.4
     
    Could anyone give advice to the = following error=20 messages shown in the above captioned CT:-
     
    1. Inverter DC bus midpoint voltage = monitor not=20 working properly
    2. BPOS toggle rate too = slow.
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0007_01C2551E.CDDD2FC0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 16:38:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mxm7-0004pS-00; Thu, 05 Sep 2002 16:38:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 194111112F5; Thu, 5 Sep 2002 16:21:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13296 for linac-eng-list; Thu, 5 Sep 2002 09:13:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA13292 for ; Thu, 5 Sep 2002 09:13:12 -0500 (CDT) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Thu, 5 Sep 2002 16:13:02 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Thu, 5 Sep 2002 16:13:02 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A791@exchange-5.orebroll.se> To: linac-eng@plato.aristotle.net Subject: SV: Culligan Filters Date: Thu, 5 Sep 2002 16:12:58 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA13293 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: linac-eng@plato.aristotle.net Subject: SV: Culligan Filters Date: Thu, 5 Sep 2002 16:12:58 +0200 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA13293 Sender: owner-linac-eng@plato.aristotle.net Goes way off scale when you add the chemicals and I can't really see how it could go down with time. The basic (alkaline) components aren't going to evaporate and aren't likely to get used up in any great extent. The water, on the other hand, evaporates so the second addition of chemicals may well produce an excess of some components. This rather implies that it's important to do the yearly complete water change but there is little point in measuring so we've stopped that. Tel. -----Ursprungligt meddelande----- Från: Greg MacKinnon [mailto:mackinnongreg@cbdha.nshealth.ca] Skickat: den 5 september 2002 11:55 Till: LinacEng; srobinson Ämne: RE: Culligan Filters I have also remove the Culligan Filters but not have added the new chemical filter kit yet. I change the water every three months. I do have another question in regards to the conductivity. Varain recommend to start with water with a value of 5 microseimen/cm or less. Without the Culligan filter which use to maintain the water to a value of around .9 mirocseimen/cm until full depleted, what kind of number does the new chemical filter kit keep the water conductivity at over the six months prior to adding more chemicals? __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8076 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of srobinson Sent: Wednesday, September 04, 2002 9:47 AM To: linac-eng@plato.aristotle.net Subject: Culligan Filters Does anybody have information about what they did in removing their Culligan filters. I am thinking about removing mine and just replacing them with the Varian replacements and skipping the use of chemicals. I have a 2100C/D and 23EX that get regular bi-annual water changes. I was wondering to those who did just that, how it was working out? And to those with a different view point to share them with me. Thanks, Steve Robinson end Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 18:03:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17mz6q-0005qa-00; Thu, 05 Sep 2002 18:03:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 019631112F5; Thu, 5 Sep 2002 17:46:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA15386 for linac-eng-list; Thu, 5 Sep 2002 10:35:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from holyrood.ed.ac.uk (holyrood.ed.ac.uk [129.215.16.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA15379 for ; Thu, 5 Sep 2002 10:35:04 -0500 (CDT) Received: from lomond2 (lomond2.onc.ed.ac.uk [129.215.140.70]) by holyrood.ed.ac.uk (8.8.7/8.8.7) with SMTP id QAA10739; Thu, 5 Sep 2002 16:34:58 +0100 (BST) Message-ID: <000d01c254f3$09df4b10$468cd781@lomond2.onc.ed.ac.uk> From: "Hamish Porter" To: "Hughes, William H." , Subject: Re: Clinac Beam times Date: Thu, 5 Sep 2002 16:43:41 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hamish Porter" To: "Hughes, William H." , Subject: Re: Clinac Beam times Date: Thu, 5 Sep 2002 16:43:41 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-linac-eng@plato.aristotle.net On your third problem : If you get a beam time of 0.13 for 40 MU you have likely got your Physics Mode Time Factor on the Configuration Page set to 1.0. This should be set to 1.1 or 1.2. In Europe following the IEC 601 recommendation we set the time factor to 10% or 1.1 but I know in some parts of the US it is set to 1.2. Certainly a setting of 1.0 will lead to racing between MU1 (the DOS1 interlock) and TIME interlock for beam termination. Hamish Porter : Oncology Physics Department Edinburgh Cancer Centre Western General Hospital Edinburgh EH4 2XU 0131-537-2254 0131-537-1092 (fax) hporter@holyrood.ed.ac.uk -----Original Message----- From: Hughes, William H. To: 'linac-eng@plato.aristotle.net' Date: 05 September 2002 13:29 >Gentlemen, > I have a Varian Clinac 2100SC, serial number 1884. It is a duel energy >machine with only the 6x beam used with 4 electrons. We are tied into the >Impac system for our record and verify system. >Over the last week we have been experiencing some rather strange problems >you may be able to assist with. >Our software version is 6.1 >First problem is a hardware fault which indicates that the gantry readout >primary and secondary pots are mismatched. When I have checked this the >deviation is 0.8** for the primary and 1.2** for the secondary. I think this >is within the limits set by Varian. The actual readings for the gantry R and >SPRO gantry are within .15 (4.25, 4.37) at all 4 quadrants. >Our second problem is communications timeouts which indicate a DBDE export >data 01, 02. >Our third problem is intermittently the unit will stop on a time fault. >Example is set 40mu for treatment with a time setting of .13 min. The unit >will deliver 38mu and time will shut unit off with reading of .13. The >Physics staff and I have tested for dose rate calibration and run the unit >at various time and mu settings with no problem. The dose rate comes up as >it should and the time calibration matches what it should for the mu set. >I have not had the privilege of attending the latest maintenance course for >this version of machine and software. We do not have any dynamic capability >at this time. >Any assistance would be greatly appreciated and thanks in advance is given. > >Bill Hughes >Regional Cancer Center >Erie, Pa. >whughes@trcc.org 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 19:07:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17n06O-0006OO-00; Thu, 05 Sep 2002 19:07:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 870051112F5; Thu, 5 Sep 2002 18:50:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA17002 for linac-eng-list; Thu, 5 Sep 2002 11:47:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dc-mx14.cluster1.charter.net (dc-mx14.cluster1.charter.net [209.225.8.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA16990 for ; Thu, 5 Sep 2002 11:46:58 -0500 (CDT) Received: from [66.169.49.105] (HELO x4j7e8) by dc-mx14.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 93571195; Thu, 05 Sep 2002 12:48:38 -0400 Message-ID: <001f01c254fc$0ad331e0$6931a942@charter.net> From: "Bob Huff" To: "Hughes, William H." , References: <1082075133C0D511AAC8000255F0072924C51B@beatrice.trcc.org> Subject: Re: Date: Thu, 5 Sep 2002 12:48:20 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bob Huff" To: "Hughes, William H." , Subject: Re: Date: Thu, 5 Sep 2002 12:48:20 -0400 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-linac-eng@plato.aristotle.net It's been my experience that the gantry readout pots need to be changed, even though you tested them and seem good. Could just be an intermittent wiper. Does the HWFA happen at the same gantry angles? If you can't detemine which pot is bad, change them both. The communications error is most likely with the Impac system. They've worked many bugs out of this, but all I can say is check with their help desk. And it sure sounds like the dose rate is running slow. I don't see how else you could end a treatment on TIME interlock. However, if you mode up and then decrease the dose rate using F5/F6 buttons, the time will not change and this could cause the interlock. Bob Huff 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 20:11:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17n16A-0006hA-00; Thu, 05 Sep 2002 20:11:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DBB261112F5; Thu, 5 Sep 2002 19:54:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA18049 for linac-eng-list; Thu, 5 Sep 2002 12:40:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA18045 for ; Thu, 5 Sep 2002 12:40:17 -0500 (CDT) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA00670; Thu, 5 Sep 2002 12:36:34 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C2B.00607C13 ; Thu, 5 Sep 2002 12:33:52 -0500 X-Lotus-FromDomain: MDACC To: "Hughes, William H." Cc: "'linac-eng@plato.aristotle.net'" Message-ID: <86256C2B.00607A14.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 5 Sep 2002 12:36:44 -0500 Subject: Re: Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Hughes, William H." Cc: "'linac-eng@plato.aristotle.net'" Date: Thu, 5 Sep 2002 12:36:44 -0500 Subject: Re: Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Bill, With regards to your problems: 1. Your PRO/SPRO pots are not in spec. 4.25 and 4.37 are far outside any I've seen. They are typically within +/- 0.02vdc. The deviations in cal mode are to do with the linearity of the plotted captured points. (Varian if I'm wrong please clarify). I'd recommend changing both and set them mechanically for 0.0vdc @ IEC 0 degrees. 2. On the second, are you running DMLC? Does it go away if you disable it? If so contact your service rep as this is a software/controller/timer thing if I remember correctly. 3. As to the third, finishing on TIME, if your dose rate is 300mu/min then you don't have your physics fudge factor set up as one of our colleagues mentioned. The factor should be at least 1.2.. Also if that is not the case, when the dose rate is sluggish at the start, you probably haven't enough time to get up to speed before you run out of time. hope this helps. Ed Rymes Accel Tech III M.D.Anderson Cancer Center Houston, TX As usual, the opinions/views are my own and not that of the institution for which I work and all that jazz... "Hughes, William H." on 09/05/2002 06:28:14 AM To: "'linac-eng@plato.aristotle.net'" cc: (bcc: Edward Rymes/MDACC) Subject: Gentlemen, I have a Varian Clinac 2100SC, serial number 1884. It is a duel energy machine with only the 6x beam used with 4 electrons. We are tied into the Impac system for our record and verify system. Over the last week we have been experiencing some rather strange problems you may be able to assist with. Our software version is 6.1 First problem is a hardware fault which indicates that the gantry readout primary and secondary pots are mismatched. When I have checked this the deviation is 0.8** for the primary and 1.2** for the secondary. I think this is within the limits set by Varian. The actual readings for the gantry R and SPRO gantry are within .15 (4.25, 4.37) at all 4 quadrants. Our second problem is communications timeouts which indicate a DBDE export data 01, 02. Our third problem is intermittently the unit will stop on a time fault. Example is set 40mu for treatment with a time setting of .13 min. The unit will deliver 38mu and time will shut unit off with reading of .13. The Physics staff and I have tested for dose rate calibration and run the unit at various time and mu settings with no problem. The dose rate comes up as it should and the time calibration matches what it should for the mu set. I have not had the privilege of attending the latest maintenance course for this version of machine and software. We do not have any dynamic capability at this time. Any assistance would be greatly appreciated and thanks in advance is given. Bill Hughes Regional Cancer Center Erie, Pa. whughes@trcc.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 21:13:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17n241-0006yI-00; Thu, 05 Sep 2002 21:13:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 521AF1112F5; Thu, 5 Sep 2002 20:55:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA19424 for linac-eng-list; Thu, 5 Sep 2002 13:52:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchbe3.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA19420 for ; Thu, 5 Sep 2002 13:52:52 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: Date: Thu, 5 Sep 2002 14:52:21 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650386EB@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: RE: Thread-Index: AcJU2DNaL7e9Yi7jQaK5BQGAE+zGdgABGupg From: "Tim Cullen" To: "Hughes, William H." , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA19421 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: RE: Date: Thu, 5 Sep 2002 14:52:21 -0400 Thread-Topic: RE: Thread-Index: AcJU2DNaL7e9Yi7jQaK5BQGAE+zGdgABGupg From: "Tim Cullen" To: "Hughes, William H." , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA19421 Sender: owner-linac-eng@plato.aristotle.net Bill, I would align the gantry pots at 180 Varian scale to 0.00. Then check the linearity around the whole rotation. I just replaced mine last evening and had to find the two "best ones" out of four pots that were in the same ballpark of linearity, strange stuff for supposedly brand new parts with +/- 0.05% linearity. I'm starting to notice that I've had quite a few of the "small" parts go bad on this unit prematurely before the warranty is even out. Things that usually you don't have to dig into until two or more years down the road. Anyone else seen this on later models? On the second problem, not sure, could be a settings problem with IMPAC. The third is definitely a IMPAC problem. I would be willing to bet the setting in the "tree" is to let IMPAC calculate the time. You don't want this. I believe they calculate at 1.07 and this is just not enough for the short treatment times you mentioned. Tim > -----Original Message----- > From: Hughes, William H. [mailto:WHughes@trcc.org] > Sent: Thursday, September 05, 2002 7:28 AM > To: 'linac-eng@plato.aristotle.net' > Subject: > > > Gentlemen, > I have a Varian Clinac 2100SC, serial number 1884. It is a > duel energy machine with only the 6x beam used with 4 > electrons. We are tied into the Impac system for our record > and verify system. Over the last week we have been > experiencing some rather strange problems you may be able to > assist with. Our software version is 6.1 First problem is a > hardware fault which indicates that the gantry readout > primary and secondary pots are mismatched. When I have > checked this the deviation is 0.8** for the primary and 1.2** > for the secondary. I think this is within the limits set by > Varian. The actual readings for the gantry R and SPRO gantry > are within .15 (4.25, 4.37) at all 4 quadrants. Our second > problem is communications timeouts which indicate a DBDE > export data 01, 02. > Our third problem is intermittently the unit will stop on a > time fault. Example is set 40mu for treatment with a time > setting of .13 min. The unit will deliver 38mu and time will > shut unit off with reading of .13. The Physics staff and I > have tested for dose rate calibration and run the unit at > various time and mu settings with no problem. The dose rate > comes up as it should and the time calibration matches what > it should for the mu set. I have not had the privilege of > attending the latest maintenance course for this version of > machine and software. We do not have any dynamic capability > at this time. > Any assistance would be greatly appreciated and thanks in > advance is given. > > Bill Hughes > Regional Cancer Center > Erie, Pa. > whughes@trcc.org > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 05 22:32:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17n3IO-0007Io-00; Thu, 05 Sep 2002 22:32:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B68F91112F5; Thu, 5 Sep 2002 22:14:48 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA21113 for linac-eng-list; Thu, 5 Sep 2002 14:57:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA21109 for ; Thu, 5 Sep 2002 14:57:53 -0500 (CDT) Received: from mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id HAA28820 for ; Fri, 6 Sep 2002 07:54:30 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Fri, 6 Sep 2002 07:59:55 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Fri, 06 Sep 2002 07:57:00 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Fri, 06 Sep 2002 07:56:56 +1200 From: "Dave Pinchin" To: , Subject: RE: Culligan Filters Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA21110 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 06 Sep 2002 07:56:56 +1200 From: "Dave Pinchin" To: , Subject: RE: Culligan Filters Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA21110 Sender: owner-linac-eng@plato.aristotle.net G'day, Firstly, a story. For ten years or so we had problems with BMAG interlocks on 2100 #40. These happened at 6X at beam on. We were able to keep these in check with meticulous attention to the water conductivity. We installed a meter on this machine. We replaced the grey cartridge as soon as the conductivity rose above 13uS. (3 months). When #1164 came on line (culigan) we replaced the grey bottle with a culligan on #40. The only difference to us was the frequency of bottle replacement. After 2 leaks on the BMAG of #40 we have replaced the culligans with the chemicals. At the time of the BMAG replacement we made a surprising discovery. The new magnet required less I to do the bending. As we lowered the current we found the supply would shut down momentarily at beam on. This was the cause of our BMAG interlock. Secondly the theory (according to Dave). The conductivity issue has 2 sides to it. 1/ The interactions with BMAG and leakage paths to ground. The BMAG has a V drop across it depending on the I. The measuring system is referenced to ground and therefore will reflect variations in the V to ground AS WELL AS the differential V across the BMAG. The important thing to remember is that once the interlock is balanced any CHANGE is going to be reported as a fault. 2/ The unlike-metals/electrolysis and metal leaching. (this is my belief). The inhibitor reacts with the surface of the metals causing a non-conductive surface which then prevents the dismantling of the metal surfaces. Therefore we go with the goo. Dave >>> "Greg MacKinnon" 5/09/02 21:54:48 >>> I have also remove the Culligan Filters but not have added the new chemical filter kit yet. I change the water every three months. I do have another question in regards to the conductivity. Varain recommend to start with water with a value of 5 microseimen/cm or less. Without the Culligan filter which use to maintain the water to a value of around .9 mirocseimen/cm until full depleted, what kind of number does the new chemical filter kit keep the water conductivity at over the six months prior to adding more chemicals? __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8076 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of srobinson Sent: Wednesday, September 04, 2002 9:47 AM To: linac-eng@plato.aristotle.net Subject: Culligan Filters Does anybody have information about what they did in removing their Culligan filters. I am thinking about removing mine and just replacing them with the Varian replacements and skipping the use of chemicals. I have a 2100C/D and 23EX that get regular bi-annual water changes. I was wondering to those who did just that, how it was working out? And to those with a different view point to share them with me. Thanks, Steve Robinson end Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 06 12:19:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17nGDR-0005RH-00; Fri, 06 Sep 2002 12:19:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2E9F81112F3; Fri, 6 Sep 2002 12:02:20 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA03224 for linac-eng-list; Fri, 6 Sep 2002 04:52:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail3.nhs.uk (mail3.nhs.uk [194.72.23.240]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA03220 for ; Fri, 6 Sep 2002 04:52:25 -0500 (CDT) From: David.Smith@arh.grampian.scot.nhs.uk Received: from hn-ext by mail3.nhs.uk (Sendmail 8.8.8) with esmtp id 17nFmp-00062Z-00; Fri, 06 Sep 2002 10:52:23 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D6DF3C5000F29AD for linac-eng@plato.aristotle.net; Fri, 6 Sep 2002 10:52:23 +0100 Received: from mta.grampian.scot.nhs.uk (195.106.102.11) by relay.nhs.uk (Syntegra-4 6.5.026) id 3D6F6E7F00125559; Fri, 6 Sep 2002 10:52:23 +0100 Received: from arh_mail.grampian.scot.nhs.uk (actually host arh.grampian.scot.nhs.uk) by mta.grampian.scot.nhs.uk with SMTP (Mailer) with ESMTP; Fri, 6 Sep 2002 10:52:30 +0100 Received: by arh.grampian.scot.nhs.uk with Internet Mail Service (5.5.2650.21) id ; Fri, 6 Sep 2002 10:53:02 +0100 Message-ID: <5FB97D7B340FD2118A6100A0C9A9A1F505D07CB5@arh.grampian.scot.nhs.uk> To: terry.kearey@orebroll.se, linac-eng@plato.aristotle.net Subject: water cooling Date: Fri, 6 Sep 2002 10:52:59 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA03221 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: David.Smith@arh.grampian.scot.nhs.uk To: terry.kearey@orebroll.se, linac-eng@plato.aristotle.net Subject: water cooling Date: Fri, 6 Sep 2002 10:52:59 +0100 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA03221 Sender: owner-linac-eng@plato.aristotle.net Everyone, I am fairly new to working with Varian equipment so cannot comment on the use of different types of water treatment for their equipment. However I used to work on an ABB CH20 (13 years) and still work on an Elekta SL75/5 and have never done total water changes or added chemicals to the water and never had/have any problems with bacterial growth or leaching of the copper pipes. The water that was originally added was scrounged from my colleagues in the dialysis unit, this water was generated by reverse osmosis and I believe is reckoned to be as pure as distilled water. The water was/is topped up as and when needed fom the same source, usually about 10 litres every 3 months in the case of the SL75. Pure water is very aggressive on copper but if the water is changed minimally then this effect will be minimised as the leaching effect of the water saturates. We did get some discolouration of transparent hoses in the ABB but was never bad enough to warrant replacing them. Any ideas on applying the same philosophy on Varian equipment? > -----Original Message----- > From: terry.kearey@orebroll.se [SMTP:terry.kearey@orebroll.se] > Sent: Thursday, September 05, 2002 3:13 PM > To: linac-eng@plato.aristotle.net > Subject: SV: Culligan Filters > > Goes way off scale when you add the chemicals and I can't really see how > it > could go down with time. The basic (alkaline) components aren't going to > evaporate and aren't likely to get used up in any great extent. The water, > on the other hand, evaporates so the second addition of chemicals may well > produce an excess of some components. This rather implies that it's > important to do the yearly complete water change but there is little point > in measuring so we've stopped that. > > Tel. > > -----Ursprungligt meddelande----- > Från: Greg MacKinnon [mailto:mackinnongreg@cbdha.nshealth.ca] > Skickat: den 5 september 2002 11:55 > Till: LinacEng; srobinson > Ämne: RE: Culligan Filters > > > I have also remove the Culligan Filters but not have added the new > chemical > filter kit yet. I change the water every three months. > > I do have another question in regards to the conductivity. Varain > recommend > to start with water with a value of 5 microseimen/cm or less. Without the > Culligan filter which use to maintain the water to a value of around .9 > mirocseimen/cm until full depleted, what kind of number does the new > chemical filter kit keep the water conductivity at over the six months > prior > to adding more chemicals? > > __________________________________________ > Greg MacKinnon > Linear Accelerator Service Technologist > Cape Breton Cancer Centre > 1482 George St > Sydney, NS B1P 1P3 > tel: (902)567-8076 > fax: (902)567-8075 > email: mackinnongreg@cbdha.nshealth.ca > > > > -----Original Message----- > From: owner-linac-eng@plato.aristotle.net > [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of srobinson > Sent: Wednesday, September 04, 2002 9:47 AM > To: linac-eng@plato.aristotle.net > Subject: Culligan Filters > > > Does anybody have information about what they did in removing their > Culligan filters. I am thinking about removing mine and just replacing > them with the Varian replacements and skipping the use of chemicals. I > have a 2100C/D and 23EX that get regular bi-annual water changes. I was > wondering to those who did just that, how it was working out? And to > those > with a different view point to share them with me. > Thanks, > Steve Robinson > end > Steve Robinson > Linear Accelerator Engineer > Radiation Therapy > 806.359.4673 ext 160 > Cell:806.433.4418 > 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 06 15:37:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17nJIj-0008Vh-00; Fri, 06 Sep 2002 15:37:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BF99A1105F9; Fri, 6 Sep 2002 15:19:57 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA05129 for linac-eng-list; Fri, 6 Sep 2002 08:11:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f25.law8.hotmail.com [216.33.241.25]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05125 for ; Fri, 6 Sep 2002 08:10:59 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 6 Sep 2002 06:10:28 -0700 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Fri, 06 Sep 2002 13:10:28 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: David.Smith@arh.grampian.scot.nhs.uk, terry.kearey@orebroll.se, linac-eng@plato.aristotle.net Subject: Re: water cooling Date: Fri, 06 Sep 2002 08:10:28 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 06 Sep 2002 13:10:28.0366 (UTC) FILETIME=[C558D2E0:01C255A6] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: David.Smith@arh.grampian.scot.nhs.uk, terry.kearey@orebroll.se, linac-eng@plato.aristotle.net Subject: Re: water cooling Date: Fri, 06 Sep 2002 08:10:28 -0500 X-OriginalArrivalTime: 06 Sep 2002 13:10:28.0366 (UTC) FILETIME=[C558D2E0:01C255A6] Sender: owner-linac-eng@plato.aristotle.net Hi David As I have been thinking of changing over to the poly type hoses I would be interested in the type of hose that you use on the SL 75 machines. I have switched to the poly hoses on one machine Varian 2100 to the target, and have been watching it for about a year now and it seems to be fine. >From: David.Smith@arh.grampian.scot.nhs.uk >To: terry.kearey@orebroll.se, linac-eng@plato.aristotle.net >Subject: water cooling >Date: Fri, 6 Sep 2002 10:52:59 +0100 > >Everyone, > >I am fairly new to working with Varian equipment so cannot comment on the >use of different types of water treatment for their equipment. However I >used to work on an ABB CH20 (13 years) and still work on an Elekta SL75/5 >and have never done total water changes or added chemicals to the water and >never had/have any problems with bacterial growth or leaching of the copper >pipes. The water that was originally added was scrounged from my colleagues >in the dialysis unit, this water was generated by reverse osmosis and I >believe is reckoned to be as pure as distilled water. The water was/is >topped up as and when needed fom the same source, usually about 10 litres >every 3 months in the case of the SL75. Pure water is very aggressive on >copper but if the water is changed minimally then this effect will be >minimised as the leaching effect of the water saturates. We did get some >discolouration of transparent hoses in the ABB but was never bad enough to >warrant replacing them. Any ideas on applying the same philosophy on Varian >equipment? > > > -----Original Message----- > > From: terry.kearey@orebroll.se [SMTP:terry.kearey@orebroll.se] > > Sent: Thursday, September 05, 2002 3:13 PM > > To: linac-eng@plato.aristotle.net > > Subject: SV: Culligan Filters > > > > Goes way off scale when you add the chemicals and I can't really see how > > it > > could go down with time. The basic (alkaline) components aren't going to > > evaporate and aren't likely to get used up in any great extent. The >water, > > on the other hand, evaporates so the second addition of chemicals may >well > > produce an excess of some components. This rather implies that it's > > important to do the yearly complete water change but there is little >point > > in measuring so we've stopped that. > > > > Tel. > > > > -----Ursprungligt meddelande----- > > Från: Greg MacKinnon [mailto:mackinnongreg@cbdha.nshealth.ca] > > Skickat: den 5 september 2002 11:55 > > Till: LinacEng; srobinson > > Ämne: RE: Culligan Filters > > > > > > I have also remove the Culligan Filters but not have added the new > > chemical > > filter kit yet. I change the water every three months. > > > > I do have another question in regards to the conductivity. Varain > > recommend > > to start with water with a value of 5 microseimen/cm or less. Without >the > > Culligan filter which use to maintain the water to a value of around .9 > > mirocseimen/cm until full depleted, what kind of number does the new > > chemical filter kit keep the water conductivity at over the six months > > prior > > to adding more chemicals? > > > > __________________________________________ > > Greg MacKinnon > > Linear Accelerator Service Technologist > > Cape Breton Cancer Centre > > 1482 George St > > Sydney, NS B1P 1P3 > > tel: (902)567-8076 > > fax: (902)567-8075 > > email: mackinnongreg@cbdha.nshealth.ca > > > > > > > > -----Original Message----- > > From: owner-linac-eng@plato.aristotle.net > > [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of srobinson > > Sent: Wednesday, September 04, 2002 9:47 AM > > To: linac-eng@plato.aristotle.net > > Subject: Culligan Filters > > > > > > Does anybody have information about what they did in removing their > > Culligan filters. I am thinking about removing mine and just replacing > > them with the Varian replacements and skipping the use of chemicals. I > > have a 2100C/D and 23EX that get regular bi-annual water changes. I was > > wondering to those who did just that, how it was working out? And to > > those > > with a different view point to share them with me. > > Thanks, > > Steve Robinson > > end > > Steve Robinson > > Linear Accelerator Engineer > > Radiation Therapy > > 806.359.4673 ext 160 > > Cell:806.433.4418 > > ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 414-443-6430 _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 06 15:48:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17nJSr-00009g-00; Fri, 06 Sep 2002 15:48:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6AB701112F3; Fri, 6 Sep 2002 15:30:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA05225 for linac-eng-list; Fri, 6 Sep 2002 08:23:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05220 for ; Fri, 6 Sep 2002 08:23:07 -0500 (CDT) Received: by igate-int.hbocvan.com; id JAA22134; Fri, 6 Sep 2002 09:23:06 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma021976; Fri, 6 Sep 02 09:23:03 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Fri, 6 Sep 2002 09:22:14 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Dicom imports to the Varian's Portal Vision Varis server. Date: Fri, 6 Sep 2002 09:22:09 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Dicom imports to the Varian's Portal Vision Varis server. Date: Fri, 6 Sep 2002 09:22:09 -0400 Sender: owner-linac-eng@plato.aristotle.net Does any one have any information on the requirements for dicom to import images into the vision server and have it tagged as a treatment. Any help would be appreciated. Thanks, Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 06 19:23:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17nMp4-0002C9-00; Fri, 06 Sep 2002 19:23:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B32FE1105F9; Fri, 6 Sep 2002 19:05:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA11824 for linac-eng-list; Fri, 6 Sep 2002 11:55:33 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA11820 for ; Fri, 6 Sep 2002 11:55:32 -0500 (CDT) Received: by igate-int.hbocvan.com; id MAA13433; Fri, 6 Sep 2002 12:55:29 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma013370; Fri, 6 Sep 02 12:55:25 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Fri, 6 Sep 2002 12:55:11 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Dicom imports to the Varian's Portal Vision Varis server. Date: Fri, 6 Sep 2002 12:55:06 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Dicom imports to the Varian's Portal Vision Varis server. Date: Fri, 6 Sep 2002 12:55:06 -0400 Sender: owner-linac-eng@plato.aristotle.net What we are trying to do is run a 2100C with out portal vision and a 21EX with portal vision. We will not be putting a portal vision on the 2100C due to age but we can us Kodaks CR system to manually generate Dicom images from the port films. It would be nice to put these dicom images in as a treatment image i.e.... example a C1 study with a DRR, that when the doc's check them, the DRR and Dicom treatment image comes up at the same time. Just like a normal portal vision image would do. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 09 15:27:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17oOZS-0006s4-00; Mon, 09 Sep 2002 15:27:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DDDF31112F9; Mon, 9 Sep 2002 15:08:32 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA10405 for linac-eng-list; Mon, 9 Sep 2002 08:01:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm030.netvigator.com (imsm030.netvigator.com [218.102.48.148]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA10401 for ; Mon, 9 Sep 2002 08:01:35 -0500 (CDT) Received: (qmail 9653 invoked from network); 9 Sep 2002 13:01:19 -0000 Received: from pcd637075.netvigator.com (HELO kyeung) (218.102.169.75) by imsm030.netvigator.com with SMTP; 9 Sep 2002 13:01:19 -0000 Message-ID: <002b01c25800$18ae0fe0$4821fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varina MMLC motors Date: Mon, 9 Sep 2002 20:54:55 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0028_01C25843.26B75F40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varina MMLC motors Date: Mon, 9 Sep 2002 20:54:55 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0028_01C25843.26B75F40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian MicroMLC=20 Could anyone advise the second source of the MMLC motor? Best regards, Kim Yeung ------=_NextPart_000_0028_01C25843.26B75F40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
        Varian MicroMLC =
     
    Could anyone advise the second source = of the MMLC=20 motor?
     
    Best regards,
     
    Kim Yeung
    ------=_NextPart_000_0028_01C25843.26B75F40-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 11 10:53:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17p3Fh-00036I-00; Wed, 11 Sep 2002 10:53:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 570601112F5; Wed, 11 Sep 2002 10:34:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA22527 for linac-eng-list; Wed, 11 Sep 2002 03:17:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from eigg.abel.net.uk (eigg.abel.net.uk [195.72.113.1]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA22523 for ; Wed, 11 Sep 2002 03:17:54 -0500 (CDT) Received: (qmail 5246 invoked from network); 11 Sep 2002 08:17:17 -0000 Received: from unknown (HELO oemcomputer) (80.225.123.37) by 195.72.113.35 with SMTP; 11 Sep 2002 08:17:17 -0000 Message-ID: <001001c2596b$5df1dde0$4469fea9@oemcomputer> From: "Radiotherapy Physics - RSH" To: Subject: SL775, Info required Date: Wed, 11 Sep 2002 09:15:17 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01C25973.BEFDA440" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapy Physics - RSH" To: Subject: SL775, Info required Date: Wed, 11 Sep 2002 09:15:17 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_000D_01C25973.BEFDA440 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable hello, i am hoping users of the SL755 can give some information, with reagrds = to the type of Printer that they use on the VS3 computer systems? for managing/printing patient information?. Many thanks in advance. Ron ------=_NextPart_000_000D_01C25973.BEFDA440 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    hello,
     
    i am hoping users of the SL755 can give some = information, with=20 reagrds to the type of Printer that they use on the VS3 computer=20 systems?
    for managing/printing patient = information?.
     
    Many thanks in advance.
     
    Ron
    ------=_NextPart_000_000D_01C25973.BEFDA440-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 11 16:06:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17p88r-000850-00; Wed, 11 Sep 2002 16:06:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E14F21112F7; Wed, 11 Sep 2002 15:47:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA25672 for linac-eng-list; Wed, 11 Sep 2002 08:44:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA25667 for ; Wed, 11 Sep 2002 08:44:25 -0500 (CDT) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8A18D1112F7; Wed, 11 Sep 2002 15:29:29 +0200 (METDST) Received: from (kriek.radcl.ruu.nl) [131.211.145.156] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17p7rW-0007qS-00; Wed, 11 Sep 2002 15:48:58 +0200 Received: from KRIEK/SpoolDir by kriek.radcl.ruu.nl (Mercury 1.48); 11 Sep 02 15:38:20 -0100 Received: from SpoolDir by KRIEK (Mercury 1.48); 11 Sep 02 15:38:18 -0100 From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: , "Radiotherapy Physics - RSH" Date: Wed, 11 Sep 2002 15:38:17 +0200 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: SL775, Info required In-reply-to: <001001c2596b$5df1dde0$4469fea9@oemcomputer> X-mailer: Pegasus Mail for Win32 (v3.01d) Message-Id: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Stuart Vessey" Organization: AZU - Department of Radiotherapy To: , "Radiotherapy Physics - RSH" Date: Wed, 11 Sep 2002 15:38:17 +0200 Subject: Re: SL775, Info required In-reply-to: <001001c2596b$5df1dde0$4469fea9@oemcomputer> Sender: owner-linac-eng@plato.aristotle.net The VS3 was supplied with the Philips GP300 or 310 serial printer. This was the same as was used for the Javelin control cabinet on the SL series. As the control characters were (I believe) written into the application software specifically for these printers, a printer which was able to emulate one of these would be ideal. An alternative would be to write a program for a pc which could read the incoming serial data stream, strip out the control characters, and format/write to disk as a text file, or even convert to another printer format. A similar system has been in use at this institute for a number of years integrated into our debug pc software. Hope this helps Stuart From: "Radiotherapy Physics - RSH" To: Subject: SL775, Info required Date sent: Wed, 11 Sep 2002 09:15:17 +0100 > hello, > > i am hoping users of the SL755 can give some information, with reagrds to the type of Printer that they use on the VS3 computer systems? > for managing/printing patient information?. > > Many thanks in advance. > > Ron > -------------- Stuart Vessey Linac Engineer UMC Utrecht The Netherlands ----------------- Any views stated in this message are personal opinions, and do not neccessarily represent the views of UMC or any other organisation. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 11 19:12:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pB23-00022D-00; Wed, 11 Sep 2002 19:12:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0A9F31112F7; Wed, 11 Sep 2002 18:52:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA29683 for linac-eng-list; Wed, 11 Sep 2002 11:44:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq03.netvigator.com (imsmq03.netvigator.com [218.102.49.37]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA29679 for ; Wed, 11 Sep 2002 11:44:02 -0500 (CDT) Received: (qmail 2309 invoked from network); 11 Sep 2002 17:13:46 -0000 Received: from pcd421150.netvigator.com (HELO kyeung) (203.218.211.150) by imsmq03.netvigator.com with SMTP; 11 Sep 2002 17:13:46 -0000 Message-ID: <000c01c259b1$7e84a1a0$cdb7fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varian MMLC motor Date: Thu, 12 Sep 2002 00:37:18 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01C259F4.8C758700" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varian MMLC motor Date: Thu, 12 Sep 2002 00:37:18 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C259F4.8C758700 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Could anyone advise the Varian part number of MMLC (BrainLAB) motor? Thanks in advance. Kim Yeung ------=_NextPart_000_0009_01C259F4.8C758700 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
    Could anyone advise the Varian part = number of MMLC=20 (BrainLAB) motor?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0009_01C259F4.8C758700-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 11 23:16:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pEql-0003AO-00; Wed, 11 Sep 2002 23:16:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0D1871112F7; Wed, 11 Sep 2002 22:57:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA04443 for linac-eng-list; Wed, 11 Sep 2002 15:39:24 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA04439 for ; Wed, 11 Sep 2002 15:39:23 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H2A0P5K5K1FLR@email.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 11 Sep 2002 16:39:15 -0400 (EDT) Date: Wed, 11 Sep 2002 16:37:06 -0400 From: "Peter E. Vitali" Subject: 21EX To: "Linac-Engineers, Listserver" Message-id: <3D7FA8E8.C5179C6E@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 11 Sep 2002 16:37:06 -0400 From: "Peter E. Vitali" Subject: 21EX To: "Linac-Engineers, Listserver" X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Good Afternoon All: We have a new Varian 21EX-S #16 (S = Silhouette). We are new to the 21 EX machines and are not use to how they behave. Also, we are not too familiar with some of the changes they have made to various circuits. To day we had some momentary power failures, lights flicker. The older 2100Cs (10 Years or more) dropped back to Standby but the 21 EX dropped out completely. What was strange was that the Under voltage Circuit Breaker on the wall outside the treatment room did not drop out even through the machine lost power. Once we realized that the machine was down, we checked the Under voltage Circuit Breaker (Main power to the machine from the Hospital) and found it was still up and supplying power. Pressing the Start Button on the Modulator powered up the machine. Anyone know any reason why the Under voltage Circuit Breaker did not drop out? Thanks Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 16:56:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pVOP-0004wi-00; Thu, 12 Sep 2002 16:56:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8BED01112F7; Thu, 12 Sep 2002 16:36:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA17295 for linac-eng-list; Thu, 12 Sep 2002 09:25:22 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.vll.se ([193.10.32.12]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA17291 for ; Thu, 12 Sep 2002 09:25:20 -0500 (CDT) From: magnus.jalmbrant@radfys.umu.se Message-Id: Date: Thu, 12 Sep 2002 16:24:27 +0200 To: linac-eng@plato.aristotle.net Subject: Varian portalvision MIME-version: 1.0 Content-Type: multipart/mixed; boundary="TFS-with-MIME-and-DIME" X-Mailer: TFS Secure Messaging /320000000/460000103/460200035/460820098/ X-Mailer: Version 4.71 Build 113 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: magnus.jalmbrant@radfys.umu.se Date: Thu, 12 Sep 2002 16:24:27 +0200 To: linac-eng@plato.aristotle.net Subject: Varian portalvision Sender: owner-linac-eng@plato.aristotle.net Message is sent with MIME. Attachments are base64 encoded --TFS-with-MIME-and-DIME Content-Type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable Good afternoon everyone! We have a "little" problem with our IAS2 computer on the Portalvision system=2E W= e have had communication problems with our IAS2 and narrowed it down to being the= disk or e=2Eg=2E OS that malfuctions=2E=20= During the process we=B4ve trashed the OS/9 operating system on the disk in the I= AS2 repeatedly=2E=2E=2E (and yes we=B4ve followed the installation instructions)=2E Since we have to order a new disk to get the operating system in working order ev= erytime (this is the third "broken" disk) we are now seeking for alternate soluti= ons=2E The question is this, does anyone out there have the OS/9 on disk for self instal= lation (3=2E0=2E1 or the latest varian uses 3=2E0=2E3)? (It would make our world=20= a lot easier)=2E Thanks Magnus J=E4lmbrant Radiophysics laboratory University hospital of Ume=E5 Sweden --TFS-with-MIME-and-DIME Content-Type: TEXT/HTML; name="ALTERNATIVE.HTM" Content-transfer-encoding: base64 Content-disposition: attachment PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBU cmFuc2l0aW9uYWwvL0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgY29udGVu dD0idGV4dC9odG1sOyBjaGFyc2V0PWlzby04ODU5LTEiIGh0dHAtZXF1aXY9 Q29udGVudC1UeXBlPg0KPE1FVEEgY29udGVudD0iTVNIVE1MIDUuMDAuMzUw Mi40ODU2IiBuYW1lPUdFTkVSQVRPUj4NCjxTVFlMRT48L1NUWUxFPg0KPC9I RUFEPg0KPEJPRFkgYmdDb2xvcj0jZmZmZmZmPjxCUj4NCjxQUkU+DQo8L1BS RT4NCg0KPERJVj48Rk9OVCBmYWNlPUFyaWFsIHNpemU9Mj4NCjxESVY+PEZP TlQgZmFjZT1BcmlhbCBzaXplPTI+R29vZCBhZnRlcm5vb24gZXZlcnlvbmUh PC9GT05UPjwvRElWPg0KPERJVj4mbmJzcDs8L0RJVj4NCjxESVY+PEZPTlQg ZmFjZT1BcmlhbCBzaXplPTI+V2UgaGF2ZSBhICJsaXR0bGUiIHByb2JsZW0g d2l0aCBvdXIgSUFTMiBjb21wdXRlciANCm9uIHRoZSBQb3J0YWx2aXNpb24g c3lzdGVtLiZuYnNwO1dlIGhhdmUgaGFkIGNvbW11bmljYXRpb24gcHJvYmxl bXMgd2l0aCBvdXIgDQpJQVMyIGFuZCBuYXJyb3dlZCBpdCBkb3duIHRvIGJl aW5nIHRoZSBkaXNrIG9yIGUuZy4gT1MgdGhhdCBtYWxmdWN0aW9ucy4gRHVy aW5nIA0KdGhlIHByb2Nlc3Mgd2W0dmUgdHJhc2hlZCB0aGUgT1MvOSBvcGVy YXRpbmcgc3lzdGVtIG9uIHRoZSBkaXNrIGluIHRoZSBJQVMyIA0KcmVwZWF0 ZWRseS4uLiAoYW5kIHllcyB3ZbR2ZSBmb2xsb3dlZCB0aGUgaW5zdGFsbGF0 aW9uIA0KaW5zdHJ1Y3Rpb25zKS48L0ZPTlQ+PC9ESVY+DQo8RElWPjxGT05U IGZhY2U9QXJpYWwgc2l6ZT0yPlNpbmNlIHdlIGhhdmUgdG8gb3JkZXIgYSBu ZXcgZGlzayB0byBnZXQgdGhlIA0Kb3BlcmF0aW5nIHN5c3RlbSBpbiB3b3Jr aW5nIG9yZGVyIGV2ZXJ5dGltZSAodGhpcyBpcyB0aGUgdGhpcmQgImJyb2tl biIgZGlzaykgd2UgDQphcmUgbm93IHNlZWtpbmcgZm9yIGFsdGVybmF0ZSBz b2x1dGlvbnMuIDwvRk9OVD48L0RJVj4NCjxESVY+PEZPTlQgZmFjZT1Bcmlh bCBzaXplPTI+VGhlIHF1ZXN0aW9uIGlzIHRoaXMsIGRvZXMgYW55b25lIG91 dCB0aGVyZSBoYXZlIA0KdGhlIE9TLzkgb24gZGlzayBmb3Igc2VsZiBpbnN0 YWxsYXRpb24gKDMuMC4xIG9yIHRoZSBsYXRlc3QgdmFyaWFuIHVzZXMgMy4w LjMpPyANCihJdCB3b3VsZCBtYWtlIG91ciB3b3JsZCBhIGxvdCBlYXNpZXIp LjwvRk9OVD48L0RJVj4NCjxESVY+Jm5ic3A7PC9ESVY+DQo8RElWPjxGT05U IGZhY2U9QXJpYWwgc2l6ZT0yPlRoYW5rczwvRk9OVD48L0RJVj4NCjxESVY+ Jm5ic3A7PC9ESVY+DQo8RElWPjxGT05UIGZhY2U9QXJpYWwgc2l6ZT0yPk1h Z251cyBK5GxtYnJhbnQ8L0ZPTlQ+PC9ESVY+DQo8RElWPjxGT05UIGZhY2U9 QXJpYWwgc2l6ZT0yPlJhZGlvcGh5c2ljcyBsYWJvcmF0b3J5PC9GT05UPjwv RElWPg0KPERJVj48Rk9OVCBmYWNlPUFyaWFsIHNpemU9Mj5Vbml2ZXJzaXR5 IGhvc3BpdGFsIG9mIFVtZeU8L0ZPTlQ+PC9ESVY+DQo8RElWPjxGT05UIGZh Y2U9QXJpYWwgc2l6ZT0yPlN3ZWRlbjwvRk9OVD48L0RJVj4NCjxESVY+Jm5i c3A7PC9ESVY+PC9GT05UPjwvRElWPjwvQk9EWT48L0hUTUw+DQo= --TFS-with-MIME-and-DIME-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 18:02:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pWQP-0005sC-00; Thu, 12 Sep 2002 18:02:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4B2331112F7; Thu, 12 Sep 2002 17:42:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA19411 for linac-eng-list; Thu, 12 Sep 2002 10:37:44 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA19407 for ; Thu, 12 Sep 2002 10:37:42 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g8CFaOn05520; Thu, 12 Sep 2002 11:36:24 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C32.00558790 ; Thu, 12 Sep 2002 11:34:12 -0400 X-Lotus-FromDomain: LRCC To: "Peter E. Vitali" Cc: "Linac-Engineers, Listserver" Message-ID: <85256C32.005585D5.00@mail.lrcc.on.ca> Date: Thu, 12 Sep 2002 11:34:07 -0400 Subject: Re: 21EX Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Peter E. Vitali" Cc: "Linac-Engineers, Listserver" Date: Thu, 12 Sep 2002 11:34:07 -0400 Subject: Re: 21EX Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net It might be your "hospital" UVR we had a new installation here and the UVR failed to trip when we put the machine down to EMERGENCY OFF. Or did someone use a paper clip in a "creative" way. I have had that too! Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 18:37:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pWy2-0006MN-00; Thu, 12 Sep 2002 18:37:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EB1211112F7; Thu, 12 Sep 2002 18:17:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA20234 for linac-eng-list; Thu, 12 Sep 2002 11:14:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA20228 for ; Thu, 12 Sep 2002 11:14:57 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Thu, 12 Sep 2002 10:18:22 -0600 Received: (from spc75 [172.24.56.75]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002091210152226919 for ; Thu, 12 Sep 2002 10:15:22 -0600 From: "Bob Penley" To: "Linac list (E-mail)" Subject: Varian Portalvision IAS2 Date: Thu, 12 Sep 2002 10:15:35 -0600 Message-ID: <000201c25a77$a0cb20b0$4b3818ac@scadomain.local> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bob Penley" To: "Linac list (E-mail)" Subject: Varian Portalvision IAS2 Date: Thu, 12 Sep 2002 10:15:35 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Hi Magnus I thought the IAS2 disk problem was only with are unit as we have also gone through allot of drives. If you have somebody who knows how to do a bit copy of a functional IAS2 drive you can make as many spare drives as you need. Then go through the software load procedure and restore your Database. I believe our IM guy used linux to do the bit copies of the disk. It would seem that this can be copied on to any similar spec. scsi disk that is 1.2gbytes or larger we have had good luck with the Seagate ST31417N and ST51080N types. Also have you cut one end of the shield on the Cat 5 cable to the IAS2 to remove the ground loop. Hope this helps you Robert Penley Senior Physics Technician Saskatoon Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 18:56:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pXGO-0006YU-00; Thu, 12 Sep 2002 18:56:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 47EA31112F7; Thu, 12 Sep 2002 18:36:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA20765 for linac-eng-list; Thu, 12 Sep 2002 11:33:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f68.law4.hotmail.com [216.33.149.68]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA20761 for ; Thu, 12 Sep 2002 11:33:00 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 12 Sep 2002 09:32:30 -0700 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Thu, 12 Sep 2002 16:32:29 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato.aristotle.net Subject: Accelerator waveguide water leaks Date: Thu, 12 Sep 2002 16:32:29 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 12 Sep 2002 16:32:30.0069 (UTC) FILETIME=[FCEC6A50:01C25A79] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: linac-eng@plato.aristotle.net Subject: Accelerator waveguide water leaks Date: Thu, 12 Sep 2002 16:32:29 +0000 X-OriginalArrivalTime: 12 Sep 2002 16:32:30.0069 (UTC) FILETIME=[FCEC6A50:01C25A79] Sender: owner-linac-eng@plato.aristotle.net To all We have 8 yr old 2100CD with an Accelerator waveguide water leak at the rear manifold. It is actualy inside the steel waveguide housing next to the energy switch, beside being a real bummer, has anyone else experianced this type of problem. This is a major problem to repair, we where wondering what the actual occurance of this was. Thanks "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 19:27:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pXko-0006hl-00; Thu, 12 Sep 2002 19:27:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 57B271112F7; Thu, 12 Sep 2002 19:07:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA21698 for linac-eng-list; Thu, 12 Sep 2002 12:05:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA21694 for ; Thu, 12 Sep 2002 12:05:53 -0500 (CDT) From: clbartee@hsc.vcu.edu Received: from mail2.vcu.edu (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id NAA23281; Thu, 12 Sep 2002 13:05:42 -0400 Message-Id: <200209121705.NAA23281@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1 Cc: linac-eng@plato.aristotle.net In-Reply-To: User-Agent: IMHO/0.98.3 (Webmail for Roxen) Subject: Re: Varian portalvision MIME-Version: 1.0 To: magnus.jalmbrant@radfys.umu.se Date: Thu, 12 Sep 2002 13:05:42 -0400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu Cc: linac-eng@plato.aristotle.net In-Reply-To: Subject: Re: Varian portalvision To: magnus.jalmbrant@radfys.umu.se Date: Thu, 12 Sep 2002 13:05:42 -0400 Sender: owner-linac-eng@plato.aristotle.net What version Vision software are you running? We had the same problems and Varian installed 6.1 software which took care of the problem. I don't remember the exact versions. If you need any more info let me know. Chris Bartee ------------------- > Good afternoon everyone! > > We have a "little" problem with our IAS2 computer on the Portalvision system. We have had communication problems with our IAS2 and narrowed it down to being the disk or e.g. OS that malfuctions. During the process we´ve trashed the OS/9 operating system on the disk in the IAS2 repeatedly... (and yes we´ve followed the installation instructions). > Since we have to order a new disk to get the operating system in working order everytime (this is the third "broken" disk) we are now seeking for alternate solutions. > The question is this, does anyone out there have the OS/9 on disk for self installation (3.0.1 or the latest varian uses 3.0.3)? (It would make our world a lot easier). > > Thanks > > Magnus Jälmbrant > Radiophysics laboratory > University hospital of Umeå > Sweden > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 19:36:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pXsv-0006it-00; Thu, 12 Sep 2002 19:36:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 41A271112F7; Thu, 12 Sep 2002 19:16:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA21960 for linac-eng-list; Thu, 12 Sep 2002 12:16:17 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA21956 for ; Thu, 12 Sep 2002 12:16:16 -0500 (CDT) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.10.2) with ESMTP id g8CHHGt11221; Thu, 12 Sep 2002 11:17:16 -0600 (MDT) Received: from cancerboard.ab.ca ([164.102.249.255]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id g8CHGfS18258; Thu, 12 Sep 2002 11:16:41 -0600 (MDT) Message-ID: <3D80CD0C.A81F89CE@cancerboard.ab.ca> Date: Thu, 12 Sep 2002 11:21:17 -0600 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: "Peter E. Vitali" Cc: "Linac-Engineers, Listserver" Subject: Re: 21EX Varian Clinac References: <3D7FA8E8.C5179C6E@yale.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 12 Sep 2002 11:21:17 -0600 From: Len Johnson X-Accept-Language: en To: "Peter E. Vitali" Cc: "Linac-Engineers, Listserver" Subject: Re: 21EX Varian Clinac Sender: owner-linac-eng@plato.aristotle.net Peter; The Emergency Stop circuit drops out two relays on the auxiliary power distribution circuit board in the modulator. These two relays K3 and K4 have normally open contacts wired in series and connected to TB2 terminals 25 and 26. Upon an emergency stop the two relays are de-energized and open the circuit. The "undervoltage release" circuit of the circuit breaker that supplies the Clinac is connected to these terminals 25 and 26. If the Clinac opens the two relay contacts then your circuit breaker should be released. The questions therefore are: does a momentary "brown out" cause these two relays to be released? and/or is your circuit breaker undervoltage release circuit connected properly. The relays are energized by a 24VDC power supply the output of which probably won't drop sufficiently during a short duration brown out to release the circuit breaker. I believe that the terminology Varian uses when they refer to "Undervoltage Release" is somewhat confusing. Yes, the circuit breaker is released by means of an undervoltage, but it would require a fairly long undervoltage condition before the relays in the Clinac drop out. Adding a true undervoltage sensing relay to your circuit breaker and wiring into the UVR coil that Varian uses for Emergency Stop might be your best answer. Hope that this helps. Len "Peter E. Vitali" wrote: > Good Afternoon All: > > We have a new Varian 21EX-S #16 (S = Silhouette). We are new to the 21 EX > machines and are not use to how they behave. Also, we are not too familiar with > some of the changes they have made to various circuits. To day we had some > momentary power failures, lights flicker. The older 2100Cs (10 Years or more) > dropped back to Standby but the 21 EX dropped out completely. What was strange > was that the Under voltage Circuit Breaker on the wall outside the treatment > room did not drop out even through the machine lost power. Once we realized > that the machine was down, we checked the Under voltage Circuit Breaker (Main > power to the machine from the Hospital) and found it was still up and supplying > power. Pressing the Start Button on the Modulator powered up the machine. > Anyone know any reason why the Under voltage Circuit Breaker did not drop out? > > Thanks > > Peter E. Vitali, CBET > Therapeutic Radiological Engineer > Yale New Haven Hospital > 20 York Street, HRT 22 > New Haven, CT. 06504 > Phone: (203) 688-2948 > FAX: (203) 688-3663 > E-mail: peter.vitali@yale.edu > > As usual, everything I say may be plausibly denied at my employer's > convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 19:47:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pY3T-0006mn-00; Thu, 12 Sep 2002 19:47:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8FEFA1112F7; Thu, 12 Sep 2002 19:27:05 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA22328 for linac-eng-list; Thu, 12 Sep 2002 12:27:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA22324 for ; Thu, 12 Sep 2002 12:27:42 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g8CHR6N7005891; Thu, 12 Sep 2002 12:27:06 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g8CHR5Tt005888; Thu, 12 Sep 2002 12:27:05 -0500 (CDT) Received: through eSafe SMTP Relay 1031310708; Thu Sep 12 12:27:05 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 12 Sep 2002 12:27:05 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5F75@wmhmail.phci.org> From: "Williams, Rod" To: "'David Price'" , linac-eng@plato.aristotle.net Subject: RE: Accelerator waveguide water leaks Date: Thu, 12 Sep 2002 12:27:04 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C25A81.9CE80E90" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'David Price'" , linac-eng@plato.aristotle.net Subject: RE: Accelerator waveguide water leaks Date: Thu, 12 Sep 2002 12:27:04 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C25A81.9CE80E90 Content-Type: text/plain This is bad very bad, did you have the DI tank installed on this machine ? Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: David Price [SMTP:roast_em@hotmail.com] > Sent: Thursday, September 12, 2002 11:32 AM > To: linac-eng@plato.aristotle.net > Subject: Accelerator waveguide water leaks > > > To all > > We have 8 yr old 2100CD with an Accelerator waveguide water leak at the > rear > manifold. It is actualy inside the steel waveguide housing next to the > energy switch, beside being a real bummer, has anyone else experianced > this > type of problem. This is a major problem to repair, we where wondering > what > the actual occurance of this was. > > Thanks > > > > > > > "Linac Engineers List Server (E-mail)" > Linac-eng@plato.aristotle.net > Linac-eng@plato.aristotle.net > > > > _________________________________________________________________ > Send and receive Hotmail on your mobile device: http://mobile.msn.com ------_=_NextPart_001_01C25A81.9CE80E90 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Accelerator waveguide water leaks

    This is bad very bad, = did you have the DI tank installed on this machine ?

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



      -----Original Message-----
      From:   David Price [SMTP:roast_em@hotmail.com]
      Sent:   Thursday, September 12, 2002 11:32 AM
      To:     linac-eng@plato.aristotle.net
      Subject:    &nbs= p;   Accelerator waveg= uide water leaks


      To all

      We have 8 yr old 2100CD with an Accelera= tor waveguide water leak at the rear
      manifold. It is actualy inside the stee= l waveguide housing next to the
      energy switch, beside being a real bumm= er, has anyone else experianced this
      type of problem. This is a major proble= m to repair, we where wondering what
      the actual occurance of this was.

      Thanks






      "Linac Engineers List Server (E-mai= l)"
      Linac-eng@plato.aristotle.net
      Linac-eng@plato.aristotle.net



      ________________________________________= _________________________
      Send and receive Hotmail on your mobile= device: http://mobil= e.msn.com

    ------_=_NextPart_001_01C25A81.9CE80E90-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 19:53:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pY9u-0006oT-00; Thu, 12 Sep 2002 19:53:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 013D71112F7; Thu, 12 Sep 2002 19:33:44 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA22152 for linac-eng-list; Thu, 12 Sep 2002 12:22:17 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA22148 for ; Thu, 12 Sep 2002 12:22:15 -0500 (CDT) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Thu, 12 Sep 2002 11:21:37 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Thu, 12 Sep 2002 11:21:24 -0600 From: "Robert Wood" To: Subject: Frequency of hose replacement (2100C) Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_29759931.12731ED5" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 12 Sep 2002 11:21:24 -0600 From: "Robert Wood" To: Subject: Frequency of hose replacement (2100C) Sender: owner-linac-eng@plato.aristotle.net This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_29759931.12731ED5 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable What is the consciences of this group on the frequency of changing out the = water hoses on a 2100C I have heard everything form 5 years to 10. What do you folks think. --=_29759931.12731ED5 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
    What is the consciences of this group on the frequency of changing = out the=20 water hoses on a 2100C
    I have heard everything form 5 years to 10.  What do you = folks=20 think.
    --=_29759931.12731ED5-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 20:28:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pYhF-0006xb-00; Thu, 12 Sep 2002 20:28:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BA0221112FA; Thu, 12 Sep 2002 20:08:10 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA23881 for linac-eng-list; Thu, 12 Sep 2002 13:04:17 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA23874 for ; Thu, 12 Sep 2002 13:04:15 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g8CI3i205324; Thu, 12 Sep 2002 14:03:44 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C32.006305C7 ; Thu, 12 Sep 2002 14:01:35 -0400 X-Lotus-FromDomain: LRCC To: "Robert Wood" Cc: Linac-eng@plato.aristotle.net Message-ID: <85256C32.006305AD.00@mail.lrcc.on.ca> Date: Thu, 12 Sep 2002 14:01:34 -0400 Subject: Re: Frequency of hose replacement (2100C) Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Robert Wood" Cc: Linac-eng@plato.aristotle.net Date: Thu, 12 Sep 2002 14:01:34 -0400 Subject: Re: Frequency of hose replacement (2100C) Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net We have been doing it on 5 year intervals on our machines. Randy McVittie 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 20:35:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pYnu-0006xx-00; Thu, 12 Sep 2002 20:35:02 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 58E831112F7; Thu, 12 Sep 2002 20:15:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24168 for linac-eng-list; Thu, 12 Sep 2002 13:11:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com ([216.33.149.7]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24164 for ; Thu, 12 Sep 2002 13:11:37 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 12 Sep 2002 11:10:31 -0700 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Thu, 12 Sep 2002 18:10:31 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: WOODR@slrmc.org, Linac-eng@plato.aristotle.net Subject: Re: Frequency of hose replacement (2100C) Date: Thu, 12 Sep 2002 18:10:31 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 12 Sep 2002 18:10:31.0887 (UTC) FILETIME=[AEC29DF0:01C25A87] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: WOODR@slrmc.org, Linac-eng@plato.aristotle.net Subject: Re: Frequency of hose replacement (2100C) Date: Thu, 12 Sep 2002 18:10:31 +0000 X-OriginalArrivalTime: 12 Sep 2002 18:10:31.0887 (UTC) FILETIME=[AEC29DF0:01C25A87] Sender: owner-linac-eng@plato.aristotle.net 3-5 years has been our experiance >From: "Robert Wood" >To: >Subject: Frequency of hose replacement (2100C) >Date: Thu, 12 Sep 2002 11:21:24 -0600 > >What is the consciences of this group on the frequency of changing out the >water hoses on a 2100C >I have heard everything form 5 years to 10. What do you folks think. David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 20:39:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pYs1-00070W-00; Thu, 12 Sep 2002 20:39:17 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 70D681112F7; Thu, 12 Sep 2002 20:19:18 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24069 for linac-eng-list; Thu, 12 Sep 2002 13:09:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA24064 for ; Thu, 12 Sep 2002 13:08:57 -0500 (CDT) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; Thu, 12 Sep 2002 13:08:57 -0500 Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Thu, 12 Sep 2002 13:08:57 -0500 Message-ID: From: Tyson Long To: "'magnus.jalmbrant@radfys.umu.se'" , "List Server (E-mail 2)" Subject: RE: Varian portalvision Date: Thu, 12 Sep 2002 13:08:49 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA24065 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "'magnus.jalmbrant@radfys.umu.se'" , "List Server (E-mail 2)" Subject: RE: Varian portalvision Date: Thu, 12 Sep 2002 13:08:49 -0500 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA24065 Sender: owner-linac-eng@plato.aristotle.net Everyone has a copy of the software on the ISA2, it comes with the machine. It is located on one of the Vision disks that you have. All you have to do is put the CD in the Vision computer, run the installation file, and O/S 9 and all other files will be copied to the ISA2. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org -----Original Message----- From: magnus.jalmbrant@radfys.umu.se [mailto:magnus.jalmbrant@radfys.umu.se] Sent: Thursday, September 12, 2002 9:24 AM To: linac-eng@plato.aristotle.net Subject: Varian portalvision Good afternoon everyone! We have a "little" problem with our IAS2 computer on the Portalvision system. We have had communication problems with our IAS2 and narrowed it down to being the disk or e.g. OS that malfuctions. During the process we´ve trashed the OS/9 operating system on the disk in the IAS2 repeatedly... (and yes we´ve followed the installation instructions). Since we have to order a new disk to get the operating system in working order everytime (this is the third "broken" disk) we are now seeking for alternate solutions. The question is this, does anyone out there have the OS/9 on disk for self installation (3.0.1 or the latest varian uses 3.0.3)? (It would make our world a lot easier). Thanks Magnus Jälmbrant Radiophysics laboratory University hospital of Umeå Sweden 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 20:44:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pYx0-000725-00; Thu, 12 Sep 2002 20:44:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6F6231112F7; Thu, 12 Sep 2002 20:24:27 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24503 for linac-eng-list; Thu, 12 Sep 2002 13:19:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA24498 for ; Thu, 12 Sep 2002 13:19:17 -0500 (CDT) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; Thu, 12 Sep 2002 13:19:17 -0500 Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Thu, 12 Sep 2002 13:19:17 -0500 Message-ID: From: Tyson Long To: "'magnus.jalmbrant@radfys.umu.se'" , "'List Server (E-mail 2)'" Subject: FW: Varian portalvision Date: Thu, 12 Sep 2002 13:19:13 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA24499 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "'magnus.jalmbrant@radfys.umu.se'" , "'List Server (E-mail 2)'" Subject: FW: Varian portalvision Date: Thu, 12 Sep 2002 13:19:13 -0500 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA24499 Sender: owner-linac-eng@plato.aristotle.net Tyson Long Bio-Med Equipment Specialist Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org -----Original Message----- From: Tyson Long Sent: Thursday, September 12, 2002 1:09 PM To: 'magnus.jalmbrant@radfys.umu.se'; List Server (E-mail 2) Subject: RE: Varian portalvision Everyone has a copy of the software on the ISA2, it comes with the machine. It is located on one of the Vision disks that you have. All you have to do is put the CD in the Vision computer, run the installation file, and O/S 9 and all other files will be copied to the ISA2. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org -----Original Message----- From: magnus.jalmbrant@radfys.umu.se [mailto:magnus.jalmbrant@radfys.umu.se] Sent: Thursday, September 12, 2002 9:24 AM To: linac-eng@plato.aristotle.net Subject: Varian portalvision Good afternoon everyone! We have a "little" problem with our IAS2 computer on the Portalvision system. We have had communication problems with our IAS2 and narrowed it down to being the disk or e.g. OS that malfuctions. During the process we´ve trashed the OS/9 operating system on the disk in the IAS2 repeatedly... (and yes we´ve followed the installation instructions). Since we have to order a new disk to get the operating system in working order everytime (this is the third "broken" disk) we are now seeking for alternate solutions. The question is this, does anyone out there have the OS/9 on disk for self installation (3.0.1 or the latest varian uses 3.0.3)? (It would make our world a lot easier). Thanks Magnus Jälmbrant Radiophysics laboratory University hospital of Umeå Sweden 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 21:04:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pZFz-00076Z-00; Thu, 12 Sep 2002 21:04:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 86B4B1112F7; Thu, 12 Sep 2002 20:44:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA25984 for linac-eng-list; Thu, 12 Sep 2002 13:42:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA25929 for ; Thu, 12 Sep 2002 13:42:53 -0500 (CDT) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA20148; Thu, 12 Sep 2002 13:39:10 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C32.00662B2C ; Thu, 12 Sep 2002 13:35:57 -0500 X-Lotus-FromDomain: MDACC To: "Robert Wood" Cc: Linac-eng@plato.aristotle.net Message-ID: <86256C32.006629B9.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 12 Sep 2002 13:37:44 -0500 Subject: Re: Frequency of hose replacement (2100C) Mime-Version: 1.0 Content-type: multipart/mixed; Boundary="0__=NbCGlBKlvg6PeUhGRaKtZn3sePM4JroEeTd7yCO3FaMhrmmtht2QHc4t" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Robert Wood" Cc: Linac-eng@plato.aristotle.net Date: Thu, 12 Sep 2002 13:37:44 -0500 Subject: Re: Frequency of hose replacement (2100C) Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net --0__=NbCGlBKlvg6PeUhGRaKtZn3sePM4JroEeTd7yCO3FaMhrmmtht2QHc4t Content-type: text/plain; charset=us-ascii Content-Disposition: inline Robert, We have seen hose deterioration much sooner than 5 years, so we are doing hose changes every 3 years. However, on our last hose change on a 4 year old Cl-2100C/D we did not see any hose deterioration, so maybe the newer machines will not have the deterioration problems. Chad Fikes MD Anderson Cancer Center "Robert Wood" on 09/12/2002 12:21:24 PM To: Linac-eng@plato.aristotle.net cc: (bcc: Chad L. Fikes/MDACC) Subject: Frequency of hose replacement (2100C) What is the consciences of this group on the frequency of changing out the water hoses on a 2100C I have heard everything form 5 years to 10. What do you folks think. --0__=NbCGlBKlvg6PeUhGRaKtZn3sePM4JroEeTd7yCO3FaMhrmmtht2QHc4t Content-type: text/html; name="att1.htm" Content-Disposition: attachment; filename="att1.htm" Content-transfer-encoding: base64 Content-Description: Internet HTML PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgaHR0cC1lcXVpdj1Db250ZW50LVR5cGUgY29udGVu dD0idGV4dC9odG1sOyBjaGFyc2V0PWlzby04ODU5LTEiPg0KPE1FVEEgY29udGVudD0iTVNIVE1M IDUuNTAuNDgwNy4yMzAwIiBuYW1lPUdFTkVSQVRPUj48L0hFQUQ+DQo8Qk9EWSBzdHlsZT0iTUFS R0lOLVRPUDogMnB4OyBGT05UOiA4cHQgTVMgU2FucyBTZXJpZjsgTUFSR0lOLUxFRlQ6IDJweCI+ DQo8RElWPldoYXQgaXMgdGhlIGNvbnNjaWVuY2VzIG9mIHRoaXMgZ3JvdXAgb24gdGhlIGZyZXF1 ZW5jeSBvZiBjaGFuZ2luZyBvdXQgdGhlIA0Kd2F0ZXIgaG9zZXMgb24gYSAyMTAwQzwvRElWPg0K PERJVj5JIGhhdmUgaGVhcmQgZXZlcnl0aGluZyBmb3JtIDUgeWVhcnMgdG8gMTAuJm5ic3A7IFdo YXQgZG8geW91IGZvbGtzIA0KdGhpbmsuPC9ESVY+PC9CT0RZPjwvSFRNTD4NCg0K --0__=NbCGlBKlvg6PeUhGRaKtZn3sePM4JroEeTd7yCO3FaMhrmmtht2QHc4t-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 21:11:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pZNW-00078s-00; Thu, 12 Sep 2002 21:11:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E69121112F7; Thu, 12 Sep 2002 20:51:50 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA26347 for linac-eng-list; Thu, 12 Sep 2002 13:47:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA26342 for ; Thu, 12 Sep 2002 13:47:51 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Thu, 12 Sep 2002 13:52:47 -0500 Message-ID: From: "Turner, Guy" To: "'Robert Wood'" , Linac-eng@plato.aristotle.net Subject: RE: Frequency of hose replacement (2100C) Date: Thu, 12 Sep 2002 13:52:47 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C25A8D.95F56090" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Robert Wood'" , Linac-eng@plato.aristotle.net Subject: RE: Frequency of hose replacement (2100C) Date: Thu, 12 Sep 2002 13:52:47 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C25A8D.95F56090 Content-Type: text/plain I personally don't have a set schedule of replacing hoses. I check the hoses (and the filters) each PMI. When I notice one getting brittle, getting bulges, or start noticing hose particles in the filter, I find and replace the offending hose(s). Before Varian started using the Culligan DI, there was no hose replacement schedule needed. I replaced a 15 year old 1800 a couple of years ago that only needed two hoses replaced in that time period. I have a 10 year old 2300 that needed 4 hoses replaced in the first two years of service. I replaced the Culligan DI with a disposable DI during year three. I haven't had to change a hose since doing that. -----Original Message----- From: Robert Wood [mailto:WOODR@slrmc.org] Sent: Thursday, September 12, 2002 12:21 PM To: Linac-eng@plato.aristotle.net Subject: Frequency of hose replacement (2100C) What is the consciences of this group on the frequency of changing out the water hoses on a 2100C I have heard everything form 5 years to 10. What do you folks think. ------_=_NextPart_001_01C25A8D.95F56090 Content-Type: text/html Message
    I personally don't have a set schedule of replacing hoses.  I check the hoses (and the filters) each PMI.  When I notice one getting brittle, getting bulges, or start noticing hose particles in the filter, I find and replace the offending hose(s).  Before Varian started using the Culligan DI, there was no hose replacement schedule needed.  I replaced a 15 year old 1800 a couple of years ago that only needed two hoses replaced in that time period.  I have a 10 year old 2300 that needed 4 hoses replaced in the first two years of service.  I replaced the Culligan DI with a disposable DI during year three.  I haven't had to change a hose since doing that.
    -----Original Message-----
    From: Robert Wood [mailto:WOODR@slrmc.org]
    Sent: Thursday, September 12, 2002 12:21 PM
    To: Linac-eng@plato.aristotle.net
    Subject: Frequency of hose replacement (2100C)

    What is the consciences of this group on the frequency of changing out the water hoses on a 2100C
    I have heard everything form 5 years to 10.  What do you folks think.
    ------_=_NextPart_001_01C25A8D.95F56090-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 21:15:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pZRM-0007B4-00; Thu, 12 Sep 2002 21:15:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0CBD11112F7; Thu, 12 Sep 2002 20:55:49 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA26721 for linac-eng-list; Thu, 12 Sep 2002 13:54:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ehc-lmc-mail1.exempla.org ([170.188.23.35]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA26717 for ; Thu, 12 Sep 2002 13:54:25 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: Re: Frequency of hose replacement (2100C) Date: Thu, 12 Sep 2002 12:53:00 -0600 Message-ID: <34D4FC2D92B18D47AFEBF96C5231125CA08C30@ehc-lmc-mail1.exempla.org> Thread-Topic: Re: Frequency of hose replacement (2100C) Thread-Index: AcJajbx1QK3FAojeTVunNeOXh8RMMQ== From: "Lollar, James" To: , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA26718 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: Re: Frequency of hose replacement (2100C) Date: Thu, 12 Sep 2002 12:53:00 -0600 Thread-Topic: Re: Frequency of hose replacement (2100C) Thread-Index: AcJajbx1QK3FAojeTVunNeOXh8RMMQ== From: "Lollar, James" To: , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA26718 Sender: owner-linac-eng@plato.aristotle.net Robert, >From my experience with the 2100, I change the out hoses at the target and primary collimator every 2 years. This is because of how much radiation they are exposed too. All others every 5 years. Hope that this is helpful. James Lollar Exempla St.Joseph and Lutheran Medical Center Denver, Colorado >>> Robert Wood 09/12/02 11:21AM >>> What is the consciences of this group on the frequency of changing out the water hoses on a 2100C I have heard everything form 5 years to 10. What do you folks think. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 12 21:15:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pZRU-0007BB-00; Thu, 12 Sep 2002 21:15:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5248B1112F7; Thu, 12 Sep 2002 20:55:57 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA27049 for linac-eng-list; Thu, 12 Sep 2002 13:58:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from glsmtp1 (glsmtp1-2.gundluth.org [204.69.147.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA27045 for ; Thu, 12 Sep 2002 13:58:04 -0500 (CDT) From: aengstle@gundluth.org Subject: Re: Frequency of hose replacement (2100C) To: "Robert Wood" Cc: Linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.9 November 16, 2001 Message-ID: Date: Thu, 12 Sep 2002 13:55:47 -0500 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.10 |March 22, 2002) at 09/12/2002 02:04:48 PM MIME-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27046 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: aengstle@gundluth.org Subject: Re: Frequency of hose replacement (2100C) To: "Robert Wood" Cc: Linac-eng@plato.aristotle.net Date: Thu, 12 Sep 2002 13:55:47 -0500 X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.10 |March 22, 2002) at 09/12/2002 02:04:48 PM X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27046 Sender: owner-linac-eng@plato.aristotle.net I try to replace the hoses "inside the lead" every 2 to 3 years. At 3 years the target hose is getting pretty hard. Try to change the other Gantry hoses every 5 years. I did have to change the Stand hoses this year (our 2100C is 12 years old and I had the hoses to the pulse tank breaking down on the inside. Little bits of rubber showed up when I opened the flow fault switch to figure out why we had a flow fault). Thus every hose in this 2100c has been changed at least once. Alan Engstler "Robert Wood" To: Sent by: cc: owner-linac-eng@plato.ar Subject: Frequency of hose replacement (2100C) istotle.net 09/12/2002 12:21 PM What is the consciences of this group on the frequency of changing out the water hoses on a 2100C I have heard everything form 5 years to 10. What do you folks think. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 13 07:27:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pizF-00016P-00; Fri, 13 Sep 2002 07:27:25 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8FB2F1112FA; Fri, 13 Sep 2002 07:07:15 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id AAA10844 for linac-eng-list; Fri, 13 Sep 2002 00:02:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta5.snfc21.pbi.net (mta5.snfc21.pbi.net [206.13.28.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id AAA10840 for ; Fri, 13 Sep 2002 00:02:12 -0500 (CDT) Received: from REIDGPC1 ([216.103.85.50]) by mta5.snfc21.pbi.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with ESMTP id <0H2D00LSW1Z69Y@mta5.snfc21.pbi.net> for linac-eng@plato.aristotle.net; Thu, 12 Sep 2002 22:02:11 -0700 (PDT) Date: Thu, 12 Sep 2002 22:02:06 -0700 From: Domenic Greco Subject: RE: Accelerator waveguide water leaks In-reply-to: To: "'David Price'" , linac-eng@plato.aristotle.net Message-id: <002801c25ae2$b8e24320$0100a8c0@REIDGPC1> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook, Build 10.0.2627 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 12 Sep 2002 22:02:06 -0700 From: Domenic Greco Subject: RE: Accelerator waveguide water leaks In-reply-to: To: "'David Price'" , linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net This type of failure has increased in frequency over the years. By my observance, this was a rare problem before the culligan cartridge was put into service. To effect repairs, it is possible to remove the short solenoid at the gun end without removing the guide. This may allow you to make the needed repairs. Otherwise, the guide must be removed and either replaced or repaired by disassembling the guide. Regards, Domenic Greco -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of David Price Sent: Thursday, September 12, 2002 9:32 AM To: linac-eng@plato.aristotle.net Subject: Accelerator waveguide water leaks To all We have 8 yr old 2100CD with an Accelerator waveguide water leak at the rear manifold. It is actualy inside the steel waveguide housing next to the energy switch, beside being a real bummer, has anyone else experianced this type of problem. This is a major problem to repair, we where wondering what the actual occurance of this was. Thanks "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 13 15:02:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17pq5H-00074f-00; Fri, 13 Sep 2002 15:02:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0D4B41112FC; Fri, 13 Sep 2002 14:41:51 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA15149 for linac-eng-list; Fri, 13 Sep 2002 07:36:41 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sigaba1 (mail.lancastergeneral.org [170.122.250.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA15145 for ; Fri, 13 Sep 2002 07:36:39 -0500 (CDT) Received: from exchange.lha.org (192.168.2.53) by sigaba1 (Sigaba Gateway (Beta) v3.5) with SMTP; Fri, 13 Sep 2002 08:34:17 (EDT) Received: FROM exchange.lha.org BY exchange.lha.org ; Fri Sep 13 08:36:07 2002 -0400 Received: by exchange.lancastergeneral.org with Internet Mail Service (5.5.2653.19) id ; Fri, 13 Sep 2002 08:36:07 -0400 Message-id: <3D998785DA22D611B68D00A0C9CDB0C00123B37D@mail.lha.org> From: "Bitler, Richard L" To: "'Robert Wood'" , Linac-eng@plato.aristotle.net Subject: RE: Frequency of hose replacement (2100C) Date: Fri, 13 Sep 2002 08:36:04 -0400 MIME-Version: 1.0 X-mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bitler, Richard L" To: "'Robert Wood'" , Linac-eng@plato.aristotle.net Subject: RE: Frequency of hose replacement (2100C) Date: Fri, 13 Sep 2002 08:36:04 -0400 Sender: owner-linac-eng@plato.aristotle.net I change the hoses going to the collimator area, gun, bending magnet etc. every two years, the rest of the cables every 4 years. The radiation causes the ones close to the beam to break down earlier. Rick Bitler Lancaster General Hospital > -----Original Message----- > From: Robert Wood [SMTP:WOODR@slrmc.org] > Sent: Thursday, September 12, 2002 13:21 > To: Linac-eng@plato.aristotle.net > Subject: Frequency of hose replacement (2100C) > > What is the consciences of this group on the frequency of changing out the > water hoses on a 2100C > I have heard everything form 5 years to 10. What do you folks think. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 13 18:20:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ptB4-0000lN-00; Fri, 13 Sep 2002 18:20:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 16AFC1112FC; Fri, 13 Sep 2002 17:59:57 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA21620 for linac-eng-list; Fri, 13 Sep 2002 10:55:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA21610 for ; Fri, 13 Sep 2002 10:55:27 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Fri, 13 Sep 2002 11:54:56 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F028@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Robert Wood'" , Linac-eng@plato.aristotle.net Subject: RE: Frequency of hose replacement (2100C) Date: Fri, 13 Sep 2002 11:54:55 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C25B3D.E79B1BF0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Robert Wood'" , Linac-eng@plato.aristotle.net Subject: RE: Frequency of hose replacement (2100C) Date: Fri, 13 Sep 2002 11:54:55 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C25B3D.E79B1BF0 Content-Type: text/plain; charset="iso-8859-1" We have seen some hoses go bad inside near the deionizer, with the Culligan installed, in a couple of years. I would lean toward occasionally looking inside the hoses, and would get busy quick if there is stuff in the filter. Our 2100 hoses were looking bad at 7 years, bad batch of hose and culligan effects, probably should have been done sooner. Our old 6-100 hoses still are fine, but stiff. Good topic. -----Original Message----- From: Robert Wood [mailto:WOODR@slrmc.org] Sent: Thursday, September 12, 2002 1:21 PM To: Linac-eng@plato.aristotle.net Subject: Frequency of hose replacement (2100C) What is the consciences of this group on the frequency of changing out the water hoses on a 2100C I have heard everything form 5 years to 10. What do you folks think. ------_=_NextPart_001_01C25B3D.E79B1BF0 Content-Type: text/html; charset="iso-8859-1"
    We have seen some hoses go bad inside near the deionizer, with the Culligan installed, in  a couple of years.  I would lean toward occasionally looking inside the hoses, and would get busy quick if there is stuff in the filter.  Our 2100 hoses were looking bad at 7 years,  bad batch of hose and culligan effects, probably should have been done sooner.  Our old 6-100 hoses still are fine, but stiff.  Good topic.
     
     
    -----Original Message-----
    From: Robert Wood [mailto:WOODR@slrmc.org]
    Sent: Thursday, September 12, 2002 1:21 PM
    To: Linac-eng@plato.aristotle.net
    Subject: Frequency of hose replacement (2100C)

    What is the consciences of this group on the frequency of changing out the water hoses on a 2100C
    I have heard everything form 5 years to 10.  What do you folks think.
    ------_=_NextPart_001_01C25B3D.E79B1BF0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 13 18:26:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ptGh-0000mX-00; Fri, 13 Sep 2002 18:26:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 944421112FA; Fri, 13 Sep 2002 18:05:45 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA22337 for linac-eng-list; Fri, 13 Sep 2002 11:05:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA22330 for ; Fri, 13 Sep 2002 11:05:48 -0500 (CDT) Received: from 165.214.16.134 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Fri, 13 Sep 2002 11:07:32 -0500 Received: by exweb01.colhca.com with Internet Mail Service (5.5.2653.19) id ; Fri, 13 Sep 2002 11:05:22 -0500 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8664F@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "Linac list (E-mail)" Cc: Barrett Marc Subject: Gammex Lasers Date: Fri, 13 Sep 2002 11:02:20 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "Linac list (E-mail)" Cc: Barrett Marc Subject: Gammex Lasers Date: Fri, 13 Sep 2002 11:02:20 -0500 Sender: owner-linac-eng@plato.aristotle.net Hello! We have recently replaced our tube type lasers with diode lasers. Would anybody be interested in our old Gammex lasers say for $50 each or best offer? There are 6 crosshair model IL465 & 2 sagittal model IL612 available. Take all or as needed! These are red lasers. All in working order. Many of the rectifier pcbs have been rebuilt & have a couple of spares. Several tubes were bought in 1995 and installed as needed over the years. Act now! Sale ends soon! Mike T. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Sep 15 06:18:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17qQrr-0000Pz-00; Sun, 15 Sep 2002 06:18:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ABAFD1112F2; Sun, 15 Sep 2002 05:57:47 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id WAA02775 for linac-eng-list; Sat, 14 Sep 2002 22:51:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m02.mx.aol.com (imo-m02.mx.aol.com [64.12.136.5]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA02771 for ; Sat, 14 Sep 2002 22:51:28 -0500 (CDT) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-m02.mx.aol.com (mail_out_v34.10.) id 9.10d.181e8c31 (3980); Sat, 14 Sep 2002 23:50:48 -0400 (EDT) Message-ID: <10d.181e8c31.2ab55d98@aol.com> Date: Sat, 14 Sep 2002 23:50:48 EDT Subject: Re: Accelerator waveguide water leaks To: rod.williams@phci.org, roast_em@hotmail.com, linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_10d.181e8c31.2ab55d98_boundary" X-Mailer: AOL 7.0 for Windows US sub 10511 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Sat, 14 Sep 2002 23:50:48 EDT Subject: Re: Accelerator waveguide water leaks To: rod.williams@phci.org, roast_em@hotmail.com, linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_10d.181e8c31.2ab55d98_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit There is a possible fix for this and it's not painful. If you'd like the info let me know. Garry In a message dated 9/12/02 10:36:45 AM Pacific Daylight Time, rod.williams@phci.org writes: > This is bad very bad, did you have the DI tank installed on this machine ? > > Rod.Williams@phci.org > WAUKESHA MEMORIAL > RODDMOD@HOTMAIL.COM > ENCORE ENGINEERING SERVICES > 7906 W.DIXON ST > MILWAUKEE, WI 53214 > 414-443-6430 > 262-928-4734 > > > > -----Original Message----- > From: David Price [SMTP:roast_em@hotmail.com] > Sent: Thursday, September 12, 2002 11:32 AM > To: linac-eng@plato.aristotle.net > Subject: Accelerator waveguide water leaks > > > To all > > We have 8 yr old 2100CD with an Accelerator waveguide water leak at the > rear > manifold. It is actualy inside the steel waveguide housing next to the > energy switch, beside being a real bummer, has anyone else experianced this > > type of problem. This is a major problem to repair, we where wondering what > > the actual occurance of this was. > > Thanks > > > > > > > "Linac Engineers List Server (E-mail)" > Linac-eng@plato.aristotle.net > Linac-eng@plato.aristotle.net > > > > _________________________________________________________________ > Send and receive Hotmail on your mobile device: http://mobile.msn.com > > --part1_10d.181e8c31.2ab55d98_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit There is a possible fix for this and it's not painful. If you'd like the info let me know.

    Garry


    In a message dated 9/12/02 10:36:45 AM Pacific Daylight Time, rod.williams@phci.org writes:
    This is bad very bad, did you have the DI tank installed on this machine ?

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



    -----Original Message-----
    From:   David Price [SMTP:roast_em@hotmail.com]
    Sent:   Thursday, September 12, 2002 11:32 AM
    To:     linac-eng@plato.aristotle.net
    Subject:        Accelerator waveguide water leaks


    To all

    We have 8 yr old 2100CD with an Accelerator waveguide water leak at the rear
    manifold. It is actualy inside the steel waveguide housing next to the
    energy switch, beside being a real bummer, has anyone else experianced this
    type of problem. This is a major problem to repair, we where wondering what
    the actual occurance of this was.

    Thanks






    "Linac Engineers List Server (E-mail)"
    Linac-eng@plato.aristotle.net
    Linac-eng@plato.aristotle.net



    _________________________________________________________________
    Send and receive Hotmail on your mobile device: http://mobile.msn.com



    --part1_10d.181e8c31.2ab55d98_boundary-- 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 16 14:12:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17qukC-0004fZ-00; Mon, 16 Sep 2002 14:12:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8D7FB11130B; Mon, 16 Sep 2002 13:51:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA23429 for linac-eng-list; Mon, 16 Sep 2002 06:45:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f95.law4.hotmail.com [216.33.149.95]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA23425 for ; Mon, 16 Sep 2002 06:45:33 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 16 Sep 2002 04:45:02 -0700 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Mon, 16 Sep 2002 11:45:02 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: GARRYANGEL@aol.com, rod.williams@phci.org, linac-eng@plato.aristotle.net Subject: Re: Accelerator waveguide water leaks Date: Mon, 16 Sep 2002 11:45:02 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 16 Sep 2002 11:45:02.0824 (UTC) FILETIME=[7E6AAE80:01C25D76] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: GARRYANGEL@aol.com, rod.williams@phci.org, linac-eng@plato.aristotle.net Subject: Re: Accelerator waveguide water leaks Date: Mon, 16 Sep 2002 11:45:02 +0000 X-OriginalArrivalTime: 16 Sep 2002 11:45:02.0824 (UTC) FILETIME=[7E6AAE80:01C25D76] Sender: owner-linac-eng@plato.aristotle.net at this time the leak is fixed, once by the onsight engineering staff, and once by varian. Unfortuntly our linac isnt running to well since varian did theirs last I heard I think I would have kept our patch all things considerd, but there are alway bigger issues to deal with than just a leak, if you get my drift!! David >From: GARRYANGEL@aol.com >To: rod.williams@phci.org, roast_em@hotmail.com, >linac-eng@plato.aristotle.net >Subject: Re: Accelerator waveguide water leaks >Date: Sat, 14 Sep 2002 23:50:48 EDT > >There is a possible fix for this and it's not painful. If you'd like the >info >let me know. > >Garry > > >In a message dated 9/12/02 10:36:45 AM Pacific Daylight Time, >rod.williams@phci.org writes: > > This is bad very bad, did you have the DI tank installed on this machine >? > > > > Rod.Williams@phci.org > > WAUKESHA MEMORIAL > > RODDMOD@HOTMAIL.COM > > ENCORE ENGINEERING SERVICES > > 7906 W.DIXON ST > > MILWAUKEE, WI 53214 > > 414-443-6430 > > 262-928-4734 > > > > > > > > -----Original Message----- > > From: David Price [SMTP:roast_em@hotmail.com] > > Sent: Thursday, September 12, 2002 11:32 AM > > To: linac-eng@plato.aristotle.net > > Subject: Accelerator waveguide water leaks > > > > > > To all > > > > We have 8 yr old 2100CD with an Accelerator waveguide water leak at the > > rear > > manifold. It is actualy inside the steel waveguide housing next to the > > energy switch, beside being a real bummer, has anyone else experianced >this > > > > type of problem. This is a major problem to repair, we where wondering >what > > > > the actual occurance of this was. > > > > Thanks > > > > > > > > > > > > > > "Linac Engineers List Server (E-mail)" > > Linac-eng@plato.aristotle.net > > Linac-eng@plato.aristotle.net > > > > > > > > _________________________________________________________________ > > Send and receive Hotmail on your mobile device: HREF="http://mobile.msn.com/">http://mobile.msn.com > > > > > David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 16 14:36:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17qv7R-0005Ad-00; Mon, 16 Sep 2002 14:36:49 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 32AFD11130B; Mon, 16 Sep 2002 14:15:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA23624 for linac-eng-list; Mon, 16 Sep 2002 07:02:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f141.law4.hotmail.com [216.33.149.141]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA23616 for ; Mon, 16 Sep 2002 07:02:53 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 16 Sep 2002 05:02:22 -0700 Received: from 128.227.85.35 by lw4fd.law4.hotmail.msn.com with HTTP; Mon, 16 Sep 2002 12:02:22 GMT X-Originating-IP: [128.227.85.35] From: "David Price" To: Linac-eng@plato.aristotle.net Subject: Bend Mag and Energy switch water leaks Date: Mon, 16 Sep 2002 12:02:22 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 16 Sep 2002 12:02:22.0670 (UTC) FILETIME=[EA3696E0:01C25D78] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [128.227.85.35] From: "David Price" To: Linac-eng@plato.aristotle.net Subject: Bend Mag and Energy switch water leaks Date: Mon, 16 Sep 2002 12:02:22 +0000 X-OriginalArrivalTime: 16 Sep 2002 12:02:22.0670 (UTC) FILETIME=[EA3696E0:01C25D78] Sender: owner-linac-eng@plato.aristotle.net After my query about our lousy little leak in the accelerator waveguide, I think it might be interesting to see just how many Bend mags and energy switch spring leaks also. WE do not use the Culligan filter or DI water, just the standard US filter cartirage and distilled water as used in our other linacs. We also have both elekta and varian. We have only experianced this problem on the 2100cd and no other. This seems quite worrisome and would like to here from other siight that have had problems in these areas. When you loose a hose that is one thing, but when you have to disasseble linacs and haul away the sledge that is another. These are extremely expensive parts that should last the life of a linac, replaced only on a reburb maybe. I look forward to this thread, any commits as to why this is happening would be interesting also. David David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 16 14:37:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17qv8T-0005BR-00; Mon, 16 Sep 2002 14:37:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1441D11130B; Mon, 16 Sep 2002 14:16:26 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA23628 for linac-eng-list; Mon, 16 Sep 2002 07:02:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA23623 for ; Mon, 16 Sep 2002 07:02:54 -0500 (CDT) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 17quVV-00073Y-00; Mon, 16 Sep 2002 12:57:37 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint1.nhs.uk (Syntegra-I1 6.5.016) id 3D831D740002E361 for linac-eng@plato.aristotle.net; Mon, 16 Sep 2002 12:57:37 +0100 Received: from email.rbbh_msdomain1 (195.104.159.2) by relay.nhs.uk (Syntegra-3 6.5.026) id 3D8586AC0001338B for linac-eng@plato.aristotle.net; Mon, 16 Sep 2002 12:57:37 +0100 Received: by email.rbbh-tr.nhs.uk with Internet Mail Service (5.5.2653.19) id ; Mon, 16 Sep 2002 12:57:07 +0100 Message-ID: From: Whittard Paul To: "'linac-eng'" Subject: Elekta Precise Treatment Table Installations Date: Mon, 16 Sep 2002 12:57:04 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Whittard Paul To: "'linac-eng'" Subject: Elekta Precise Treatment Table Installations Date: Mon, 16 Sep 2002 12:57:04 +0100 Sender: owner-linac-eng@plato.aristotle.net Hello list. We are currently in the final stages of constructing a new linac bunker to take a new Elekta Precise linac. Unfortunately, the floor pit was not originally constructed as per Elekta's planning guidance (w.r.t level of finish), and I am concerned at how the local construction team are tackling this issue. I know that a number of sites have found themselves in similar difficulties, and I would really appreciate it if anybody that has found themselves in a similar predicament could answer the following questions: * Did your builders attempt to use some sort of repair/levelling compound ? * If so, exactly what product was used, and to what depth ? * Did it work ? * If it failed, when exactly, and how, did the repair fail ? * Or did you simply dig the original concrete back out to a substantial depth (and how deep would this have been?) and start over again ? The benefit of anybody's experience would be gratefully received ! Paul Whittard Head of Radiotherapy Physics Royal Berkshire Hospital Reading RG1 5AN Tel: +44 (0) 118 9877 355 Fax: +44 (0) 118 9877 377 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 16 16:58:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17qxKM-0006tT-00; Mon, 16 Sep 2002 16:58:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C48A111130C; Mon, 16 Sep 2002 16:36:48 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA26502 for linac-eng-list; Mon, 16 Sep 2002 09:38:40 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bridgehead.lumc.nl (bridgehead.lumc.nl [145.88.210.235]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA26498 for ; Mon, 16 Sep 2002 09:38:38 -0500 (CDT) Received: by bridgehead.lumc.nl with Internet Mail Service (5.5.2656.59) id ; Mon, 16 Sep 2002 16:38:37 +0200 Message-ID: From: "Vroome, H. de (ONCO)" To: "'Whittard Paul'" , "'linac-eng'" Subject: RE: Elekta Precise Treatment Table Installations Date: Mon, 16 Sep 2002 16:38:36 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Vroome, H. de (ONCO)" To: "'Whittard Paul'" , "'linac-eng'" Subject: RE: Elekta Precise Treatment Table Installations Date: Mon, 16 Sep 2002 16:38:36 +0200 Sender: owner-linac-eng@plato.aristotle.net We installed last year a linac and a simulator with the new precise table, the first in an old Philips ram pit, the second in the pit of a Philips Locsim with the pedestal table The problem with the simulator pit was that the depth was not everywhere more then 21 cm. In fact it had been better to remove some more concreet to get a minimum of 22 cm. The middle 14 cm diameter was cut out and filled again was a special high pressure mortar to -23.5 cm. Im fact wath you need an small flat and level area arround the centre that can have a force of 2-3 times the weight of the the table. Theoreticaly you can fill the height difference with as much shims as you want. The gantry side of the table is fixed with to bolts that could witstand a tensile force of 2 times the table weight and 1 times th pressure force. When you are interested I have some detail digital pictures of both pits and table. ir. Henk de Vroome Dept Clinical Oncology K1-P Leiden Medical University Centre PoBox 9600, 2300 RC Leiden, The Netherlands tel #31 71 526 2914, fax #31 71 526 6760 -----Original Message----- From: Whittard Paul [mailto:Paul.Whittard@rbbh-tr.nhs.uk] Sent: 16 September 2002 13:57 To: 'linac-eng' Subject: Elekta Precise Treatment Table Installations Hello list. We are currently in the final stages of constructing a new linac bunker to take a new Elekta Precise linac. Unfortunately, the floor pit was not originally constructed as per Elekta's planning guidance (w.r.t level of finish), and I am concerned at how the local construction team are tackling this issue. I know that a number of sites have found themselves in similar difficulties, and I would really appreciate it if anybody that has found themselves in a similar predicament could answer the following questions: * Did your builders attempt to use some sort of repair/levelling compound ? * If so, exactly what product was used, and to what depth ? * Did it work ? * If it failed, when exactly, and how, did the repair fail ? * Or did you simply dig the original concrete back out to a substantial depth (and how deep would this have been?) and start over again ? The benefit of anybody's experience would be gratefully received ! Paul Whittard Head of Radiotherapy Physics Royal Berkshire Hospital Reading RG1 5AN Tel: +44 (0) 118 9877 355 Fax: +44 (0) 118 9877 377 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 16 21:21:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17r1RI-0008D9-00; Mon, 16 Sep 2002 21:21:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8B4931112F1; Mon, 16 Sep 2002 21:00:09 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA00211 for linac-eng-list; Mon, 16 Sep 2002 12:25:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (oe35.law8.hotmail.com [216.33.240.92]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA00207 for ; Mon, 16 Sep 2002 12:25:52 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 16 Sep 2002 10:25:21 -0700 X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Clinac-summision" Subject: Salary Survey in USA Date: Mon, 16 Sep 2002 13:22:32 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00FA_01C25D84.1D0D1CA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 Disposition-Notification-To: "JoseV" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-ID: X-OriginalArrivalTime: 16 Sep 2002 17:25:21.0694 (UTC) FILETIME=[0902FBE0:01C25DA6] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Clinac-summision" Subject: Salary Survey in USA Date: Mon, 16 Sep 2002 13:22:32 -0400 X-Priority: 3 X-MSMail-Priority: Normal Disposition-Notification-To: "JoseV" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-OriginalArrivalTime: 16 Sep 2002 17:25:21.0694 (UTC) FILETIME=[0902FBE0:01C25DA6] Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_00FA_01C25D84.1D0D1CA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I know many of you have the same question when it comes to ask your = bosses for a raise and what's behind all that (got it do your homework), = how do you educate them and guide them to the right source of = information where they can make a solid salary survey for a high demand = and non common career as an In-house Oncology Engineer, Where do your = boss or HR department get this information from? Are they getting the = right information? I know all these are some of the goals for the RSEA = but in the mean time can someone guide me to a good source for a salary = survey, send me one if you have it, or share your salary information, I = know there are lots of variables like regional area, experience, etc. I will keep it confidential and it will only be for my own case where = I'm at the top of my pay grade and will only be getting a 1% raise due = to the lack of a good salary survey that could move me up to a upper pay = grade.. Thanks in advance. Jose Villegas. Baptist Hospital of Miami 305-596-6566 ------=_NextPart_000_00FA_01C25D84.1D0D1CA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

    I know many of you have = the same=20 question when it comes to ask your bosses for a raise and what's = behind all=20 that (got it do your homework), how do you educate them and guide them = to the=20 right source of information where they can make a solid salary survey = for a high=20 demand and non common career as an In-house Oncology Engineer, = Where=20 do your boss or HR department get this information from? Are they = getting the=20 right information? I know all these are some of the goals for the = RSEA but=20 in the mean time can someone guide me to a good source for a salary = survey,=20 send me one if you have it, or share your salary information, I know = there are=20 lots of variables like regional area, experience, = etc.

    I will keep it = confidential and it=20 will only be for my own case where I'm at the top of my pay = grade and=20 will only be getting a 1% raise due to the lack of a good salary survey = that=20 could move me up to a upper pay grade..

     

    Thanks in = advance.

     

    Jose Villegas.

    Baptist=20 Hospital of Miami
    305-596-6566
    ------=_NextPart_000_00FA_01C25D84.1D0D1CA0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Sep 17 02:17:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17r63w-0000LP-00; Tue, 17 Sep 2002 02:17:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6B3B51112F1; Tue, 17 Sep 2002 01:56:16 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA08144 for linac-eng-list; Mon, 16 Sep 2002 18:44:26 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA08140 for ; Mon, 16 Sep 2002 18:44:22 -0500 (CDT) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper2.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id LAA29993 for ; Tue, 17 Sep 2002 11:42:35 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Wed, 29 May 2002 14:19:32 -0500 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 17 Sep 2002 11:23:15 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 17 Sep 2002 11:22:59 +1200 From: "Dave Pinchin" To: , Subject: Re: Bend Mag and Energy switch water leaks Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA08141 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 17 Sep 2002 11:22:59 +1200 From: "Dave Pinchin" To: , Subject: Re: Bend Mag and Energy switch water leaks Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA08141 Sender: owner-linac-eng@plato.aristotle.net G'day, As I mentioned earlier we had an issue that meant we had to keep our water pure. We were using the little grey canister and replacing it very regulary. It appears to me the ONLY difference between the calligan and the grey is how regularly you have to replace them to keep the water pure. IF water purity has not been an issue at your site then you may have had the benefit of a lot less corrosion. So far on #40 we have had 3%slits, target and BMAG. I now run the goo rather than Calligan. Dave >>> "David Price" 17/09/02 00:02:22 >>> After my query about our lousy little leak in the accelerator waveguide, I think it might be interesting to see just how many Bend mags and energy switch spring leaks also. WE do not use the Culligan filter or DI water, just the standard US filter cartirage and distilled water as used in our other linacs. We also have both elekta and varian. We have only experianced this problem on the 2100cd and no other. This seems quite worrisome and would like to here from other siight that have had problems in these areas. When you loose a hose that is one thing, but when you have to disasseble linacs and haul away the sledge that is another. These are extremely expensive parts that should last the life of a linac, replaced only on a reburb maybe. I look forward to this thread, any commits as to why this is happening would be interesting also. David David Price SHands Cancer Center 2000 SW archer Rd Gainesville Fla, 32610 W 352-395-0316 Opinions expressed here are entirely my own and do not constitute any affirmation from my employer, the University of Florida, or my pet gerbil, Herbie "Linac Engineers List Server (E-mail)" Linac-eng@plato.aristotle.net Linac-eng@plato.aristotle.net _________________________________________________________________ Join the world's largest e-mail service with MSN Hotmail. http://www.hotmail.com ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 18 00:06:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17rQTq-0000fr-00; Wed, 18 Sep 2002 00:06:02 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8B6E01112FC; Tue, 17 Sep 2002 23:44:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA03327 for linac-eng-list; Tue, 17 Sep 2002 16:25:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA03319 for ; Tue, 17 Sep 2002 16:25:56 -0500 (CDT) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA725F for ; Tue, 17 Sep 2002 16:22:54 -0500 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Tue, 17 Sep 2002 16:25:24 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Tue, 17 Sep 2002 16:25:14 -0500 From: "Stephen Jordan" To: Subject: 2100CD sn 1007 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 17 Sep 2002 16:25:14 -0500 From: "Stephen Jordan" To: Subject: 2100CD sn 1007 Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Hello Everyone! Our 2100CD was down with a EXQ2 I/L....I found a bad Sym & Dose rate Integ. PCB (ANG T), replaced it after matching the pots, and we're back up. When I was QAing the machine, I noticed that at low doserates, MU1 & 2 do not seem to match (4-5% out of 100 mu), although at higher (500-600mu/min) d/r, they match up within 1%. Can someone explain this? I know Physics has to do their thing, but I'd like to know what it is. Help please for a newbie! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 18 02:00:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17rSGy-0000tc-00; Wed, 18 Sep 2002 02:00:52 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3627F1112F1; Wed, 18 Sep 2002 01:38:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA05224 for linac-eng-list; Tue, 17 Sep 2002 18:40:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA05219 for ; Tue, 17 Sep 2002 18:40:16 -0500 (CDT) Received: from Mailsweeper2.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.18.162]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id LAA10054 for ; Wed, 18 Sep 2002 11:38:24 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper2.chhlth.govt.nz (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Wed, 18 Sep 2002 11:46:03 +1200 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Wed, 18 Sep 2002 11:39:11 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 18 Sep 2002 11:39:03 +1200 From: "Dave Pinchin" To: , Subject: Re: 2100CD sn 1007 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA05221 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 18 Sep 2002 11:39:03 +1200 From: "Dave Pinchin" To: , Subject: Re: 2100CD sn 1007 Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA05221 Sender: owner-linac-eng@plato.aristotle.net G'day, This sounds like an offset nulling issue. At low doserates the offset is a larger proportion of the signal and therefore is a significant contributor to the total MU At hi DR the offset is swamped by the signal and they balance better. The pots on the DR/integrator boards are generally nulling. The databook and systems manual have most of the setups req'd. So, matching pots was the wrong thing to do (this time). I've had a look at the book and am dissapointed by the lack of detailed setup info. Use the manual to adjust the offset to nulls. From memory the integrator is tweeked so that it just stops counting and then half a turn more. This should get you started anyway. Could others add more info for the setup please. Dave. >>> "Stephen Jordan" 18/09/02 09:25:14 >>> Hello Everyone! Our 2100CD was down with a EXQ2 I/L....I found a bad Sym & Dose rate Integ. PCB (ANG T), replaced it after matching the pots, and we're back up. When I was QAing the machine, I noticed that at low doserates, MU1 & 2 do not seem to match (4-5% out of 100 mu), although at higher (500-600mu/min) d/r, they match up within 1%. Can someone explain this? I know Physics has to do their thing, but I'd like to know what it is. Help please for a newbie! Steve Jordan UAB Rad Physics ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 18 14:02:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17rdXR-0005jT-00; Wed, 18 Sep 2002 14:02:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BBB581112FC; Wed, 18 Sep 2002 13:40:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA13758 for linac-eng-list; Wed, 18 Sep 2002 06:33:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA13754 for ; Wed, 18 Sep 2002 06:33:33 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g8IBWl212520; Wed, 18 Sep 2002 07:32:47 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C38.003F4D05 ; Wed, 18 Sep 2002 07:31:24 -0400 X-Lotus-FromDomain: LRCC To: "Dave Pinchin" Cc: linac-eng@plato.aristotle.net, srjordan@uabmc.edu Message-ID: <85256C38.003F4AF8.00@mail.lrcc.on.ca> Date: Wed, 18 Sep 2002 07:31:18 -0400 Subject: Re: 2100CD sn 1007 Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Dave Pinchin" Cc: linac-eng@plato.aristotle.net, srjordan@uabmc.edu Date: Wed, 18 Sep 2002 07:31:18 -0400 Subject: Re: 2100CD sn 1007 Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net If you don't have the null set right I think you would get a DS12 interlock if you left the machine programmed up for a minute or two. Randy 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 18 15:17:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17reiL-0006fG-00; Wed, 18 Sep 2002 15:17:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 69CF81112F1; Wed, 18 Sep 2002 14:55:41 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA14952 for linac-eng-list; Wed, 18 Sep 2002 07:50:24 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from egnhst.org.uk (firewall.egnhst.swest.nhs.uk [195.107.47.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA14948 for ; Wed, 18 Sep 2002 07:50:21 -0500 (CDT) From: Mike.West@egnhst.org.uk Received: from secure.secure.egnhst.nhs.uk ([192.168.101.2]) by firewall.egnhst.org.uk with ESMTP id <119051>; Wed, 18 Sep 2002 13:50:12 +0100 Received: from egnt19.glos.nhs.uk (firewall.egnhst.nhs.uk) by secure.secure.egnhst.nhs.uk (Content Technologies SMTPRS 4.2.10) with ESMTP id ; Wed, 18 Sep 2002 13:49:41 +0100 Received: by egnt19.glos.nhs.uk with Internet Mail Service (5.5.2656.59) id ; Wed, 18 Sep 2002 13:49:41 +0100 Message-ID: <09776756F096BC488F990D2E0B1F3E6829BCC4@egnt19.glos.nhs.uk> To: linac-eng@plato.aristotle.net, srjordan@uabmc.edu Subject: Re: 2100CD sn 1007 Date: Wed, 18 Sep 2002 13:49:41 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C25F11.DAD39FA0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mike.West@egnhst.org.uk To: linac-eng@plato.aristotle.net, srjordan@uabmc.edu Subject: Re: 2100CD sn 1007 Date: Wed, 18 Sep 2002 13:49:41 +0100 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C25F11.DAD39FA0 Content-Type: text/plain; charset="iso-8859-1" Not necesarily - if the offset is negative, the integrators ramp down and give no counts. Still leaves an imbalance between DS1 and DS2 as the offset will 'subtract' from the signal. I thought there was a 'latency' in the ion chambers following a pulse of radiation whilst the ionisation dissipates - this leads to a small non-linearity with dose rate - any physicists out there? Mike -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Wednesday, September 18, 2002 12:31 To: Dave Pinchin Cc: linac-eng@plato.aristotle.net; srjordan@uabmc.edu Subject: Re: 2100CD sn 1007 If you don't have the null set right I think you would get a DS12 interlock if you left the machine programmed up for a minute or two. Randy This message may contain privileged or confidential information. If you receive this message in error please return it to the sender and delete all copies - thankyou. ------_=_NextPart_001_01C25F11.DAD39FA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: 2100CD sn 1007

    Not necesarily - if the offset is ne= gative, the integrators ramp down and give no counts. Still leaves an imbal= ance between DS1 and DS2 as the offset will 'subtract' from the signal.

    I thought there was a 'latency' in t= he ion chambers following a pulse of radiation whilst the ionisation dissip= ates - this leads to a small non-linearity with dose rate - any physicists = out there?

    Mike

    -----Original Message-----
    From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca= ]
    Sent: Wednesday, September 18, 2002= 12:31
    To: Dave Pinchin
    Cc: linac-eng@plato.aristotle.net; = srjordan@uabmc.edu
    Subject: Re: 2100CD sn 1007




    If you don't have the null set right= I think you would get a DS12 interlock if
    you left the machine programmed up = for a
    minute or two.

    Randy



    This message may contain privileged or confidential information.
    If you receive this message in error please return it to the sender and del= ete all copies - thankyou.
     ------_=_NextPart_001_01C25F11.DAD39FA0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 18 20:41:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17rjlq-0000cv-00; Wed, 18 Sep 2002 20:41:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 44EBF1112F1; Wed, 18 Sep 2002 20:19:32 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA24099 for linac-eng-list; Wed, 18 Sep 2002 13:12:43 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA24095 for ; Wed, 18 Sep 2002 13:12:42 -0500 (CDT) Received: by xchange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Wed, 18 Sep 2002 11:12:11 -0700 Message-ID: From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Leaving MD-2 Running Date: Wed, 18 Sep 2002 11:12:09 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Leaving MD-2 Running Date: Wed, 18 Sep 2002 11:12:09 -0700 Sender: owner-linac-eng@plato.aristotle.net Hi All, Our physicist is doing her annual scanning and last night she decided to leave the machine on all night because she thinks turning the machine on and off may cause it to go down. My feeling is that she can do what she likes. I realize there are some safety considerations to think about here also. I just wanted some opinions on the subject of leaving machines running all the time. All opinions solicited and happily accepted. On another note I am having a problem on this same machine with the odd flatness fault while running electrons. Fairly intermittent problem. This is a magnetron machine. I ran the machine this morning at 10 mev while monitoring the dose 2 pulse. Everything seemed fine. Nice 5 volt pulse and fairly stable. Then all of a sudden the dose pulse started bouncing around about 1/2 a volt and looking fairly unstable. Didn't fault out so kept it running. Kept monitoring the dose pulse and it goes back to looking stable again. I'm thinking the injector needs a close look. Believe it or not I have been here 7 years now and never had a single problem with the injector on this machine. Can't say the same for our 5 year old MD-2. The machine is question is 10 years old. Any input on this problem would be appreciated. Thank You, Dan Watters University Medical Center Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 19 03:29:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17rq83-0001SH-00; Thu, 19 Sep 2002 03:29:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C40A31112F7; Thu, 19 Sep 2002 03:06:42 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA02626 for linac-eng-list; Wed, 18 Sep 2002 20:03:04 -0500 (CDT) Received: from mta1-3.us4.outblaze.com (205-158-62-44.outblaze.com [205.158.62.44]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA02622 for ; Wed, 18 Sep 2002 20:03:01 -0500 (CDT) Received: from mta1-2.us4.outblaze.com (205-158-62-62.outblaze.com [205.158.62.62]) by mta1-3.us4.outblaze.com (8.12.3/8.12.3/us4-srs) with SMTP id g8J12UQR019884 for ; Thu, 19 Sep 2002 01:02:30 GMT Received: (qmail 9127 invoked by uid 0); 19 Sep 2002 01:02:27 -0000 MBOX-Line: From owner-linac-eng@plato.aristotle.net Wed Sep 18 12:02:14 2002 Received: (qmail 23162 invoked from network); 18 Sep 2002 12:02:13 -0000 Received: from unknown (HELO spf12.us4.outblaze.com) (205.158.62.36) by 205-158-62-62.outblaze.com with SMTP; 18 Sep 2002 12:02:13 -0000 Received: from spf8.us4.outblaze.com (205-158-62-35.outblaze.com [205.158.62.35]) by spf12.us4.outblaze.com (8.12.5/8.12.5/us4-yg) with ESMTP id g8IC2Dlm001981 for <"djf:iname.com"@iname.com.int>; Wed, 18 Sep 2002 12:02:13 GMT Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by spf8.us4.outblaze.com (8.11.6/8.11.6) with ESMTP id g8IC2Bo46527; Wed, 18 Sep 2002 12:02:11 GMT Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA13758 for linac-eng-list; Wed, 18 Sep 2002 06:33:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA13754 for ; Wed, 18 Sep 2002 06:33:33 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.10.2+Sun/8.10.2) with SMTP id g8IBWl212520; Wed, 18 Sep 2002 07:32:47 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C38.003F4D05 ; Wed, 18 Sep 2002 07:31:24 -0400 X-Lotus-FromDomain: LRCC To: "Dave Pinchin" Cc: linac-eng@plato.aristotle.net, srjordan@uabmc.edu Message-ID: <85256C38.003F4AF8.00@mail.lrcc.on.ca> Date: Wed, 18 Sep 2002 07:31:18 -0400 Subject: Re: 2100CD sn 1007 Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** MBOX-Line: From owner-linac-eng@plato.aristotle.net Wed Sep 18 12:02:14 2002 X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Dave Pinchin" Cc: linac-eng@plato.aristotle.net, srjordan@uabmc.edu Date: Wed, 18 Sep 2002 07:31:18 -0400 Subject: Re: 2100CD sn 1007 Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net If you don't have the null set right I think you would get a DS12 interlock if you left the machine programmed up for a minute or two. Randy 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 19 17:05:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17s2sN-0007nJ-00; Thu, 19 Sep 2002 17:05:55 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 820701112F3; Thu, 19 Sep 2002 16:43:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13026 for linac-eng-list; Thu, 19 Sep 2002 09:35:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hccexch.harringtoncc.org ([207.19.3.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA13022 for ; Thu, 19 Sep 2002 09:35:52 -0500 (CDT) Received: from a9a5c1.harringtoncc.org ([192.168.1.64] unverified) by hccexch.harringtoncc.org with Microsoft SMTPSVC(5.0.2195.5329); Thu, 19 Sep 2002 09:42:21 -0500 Message-Id: <4.3.2.7.1.20020919094135.00abeee0@192.168.1.7> X-Sender: srobinson@192.168.1.7 X-Mailer: QUALCOMM Windows Eudora Version 4.3.2 Date: Thu, 19 Sep 2002 09:43:33 -0500 To: linac-eng@plato.aristotle.net From: srobinson Subject: Fluctuating dose rate Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-OriginalArrivalTime: 19 Sep 2002 14:42:21.0943 (UTC) FILETIME=[C310A870:01C25FEA] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: srobinson@192.168.1.7 Date: Thu, 19 Sep 2002 09:43:33 -0500 To: linac-eng@plato.aristotle.net From: srobinson Subject: Fluctuating dose rate X-OriginalArrivalTime: 19 Sep 2002 14:42:21.0943 (UTC) FILETIME=[C310A870:01C25FEA] Sender: owner-linac-eng@plato.aristotle.net I have this problem with a Clinac 2100 C/D that I would like to take some advise on. Intermittanly the dose rate will climb then and when it servos itself it back will drop too low and cause a UDR1 and UDR2 I/L. At least that is what I believe is happening. This does not happen 100% of the time but it does quite offen. I have looked at the machine on several nights to try and resolve it. When I leave in th PM it alway is at the dose rate I selected and remains there thoughtout the treatment time for serveral treatments. In the AM morning check-out, sometimes its perferct and sometimes its not. Some of the things that I have noticed are as follows: (1)I have noticed and increase in ACL VAC activety lately and I was wondering if this is a possible source of my troubles. I feel that this is important to resolve but was wondering if I have two problems or just one. (2)This seems to be a heat or Beam-On time problem since the longer the Beam-On time is the more accurate the dose rate appears. But it will climb sometimes in the middle of treatment and servo back. (3)LD PWR2 fluctuates with D/R. (4)I have varied Klystron delay with no concrete improvements. (4)I retuned the 18X PRGM BRD and like all other attempts, never fully resolves the problem forever. (5)This seem to happen in all energies but it is really more noticable at 18X. Does anybody have advice on things that I should check for? Thanks too all who reply. One last thing, what is a good way to investigate an Accelerator vacuum leak? Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 19 20:54:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17s6RB-0008QX-00; Thu, 19 Sep 2002 20:54:05 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2C56B1112F3; Thu, 19 Sep 2002 20:31:18 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA18383 for linac-eng-list; Thu, 19 Sep 2002 13:23:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA18379 for ; Thu, 19 Sep 2002 13:23:57 -0500 (CDT) From: clbartee@hsc.vcu.edu Received: from mail2.vcu.edu (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id OAA06240; Thu, 19 Sep 2002 14:23:49 -0400 Message-Id: <200209191823.OAA06240@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=us-ascii User-Agent: IMHO/0.98.3 (Webmail for Roxen) Subject: Re: Fluctuating dose rate MIME-Version: 1.0 In-Reply-To: <4.3.2.7.1.20020919094135.00abeee0@192.168.1.7> Cc: linac-eng@plato.aristotle.net To: srobinson Date: Thu, 19 Sep 2002 14:23:49 -0400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu Subject: Re: Fluctuating dose rate In-Reply-To: <4.3.2.7.1.20020919094135.00abeee0@192.168.1.7> Cc: linac-eng@plato.aristotle.net To: srobinson Date: Thu, 19 Sep 2002 14:23:49 -0400 Sender: owner-linac-eng@plato.aristotle.net ------------------- The problem sounds like it might be afc related. Try adjusting afc bal for max acceptance. do this with pfn off. then peak pfn. Chris > > > I have this problem with a Clinac 2100 C/D that I would like to take some > advise on. Intermittanly the dose rate will climb then and when it servos > itself it back will drop too low and cause a UDR1 and UDR2 I/L. At least > that is what I believe is happening. This does not happen 100% of the time > but it does quite offen. I have looked at the machine on several nights to > try and resolve it. When I leave in th PM it alway is at the dose rate I > selected and remains there thoughtout the treatment time for serveral > treatments. In the AM morning check-out, sometimes its perferct and > sometimes its not. Some of the things that I have noticed are as follows: > (1)I have noticed and increase in ACL VAC activety lately and I was > wondering if this is a possible source of my troubles. I feel that this is > important to resolve but was wondering if I have two problems or just one. > (2)This seems to be a heat or Beam-On time problem since the longer the > Beam-On time is the more accurate the dose rate appears. But it will climb > sometimes in the middle of treatment and servo back. (3)LD PWR2 fluctuates > with D/R. (4)I have varied Klystron delay with no concrete improvements. > (4)I retuned the 18X PRGM BRD and like all other attempts, never fully > resolves the problem forever. (5)This seem to happen in all energies but it > is really more noticable at 18X. Does anybody have advice on things that I > should check for? Thanks too all who reply. One last thing, what is a good > way to investigate an Accelerator vacuum leak? > Steve Robinson > Linear Accelerator Engineer > Radiation Therapy > 806.359.4673 ext 160 > Cell:806.433.4418 > > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 20 01:02:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17sAJ8-0000Wi-00; Fri, 20 Sep 2002 01:02:02 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A08BA1112F3; Fri, 20 Sep 2002 00:39:11 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA27101 for linac-eng-list; Thu, 19 Sep 2002 17:20:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from adl0133.systems.sa.gov.au (adl0133.systems.sa.gov.au [143.216.236.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA27097 for ; Thu, 19 Sep 2002 17:20:04 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.9.3/8.9.3) with ESMTP id HAA11886; Fri, 20 Sep 2002 07:49:26 +0930 (CST)' Received: from adl0024.rah.sa.gov.au (adl0024.rah.sa.gov.au [143.216.0.243]) by adl0133.systems.sa.gov.au INCOMING (8.9.3/8.9.3) with ESMTP id HAA11873; Fri, 20 Sep 2002 07:49:25 +0930 (CST)' Received: (from uucp@localhost) by adl0024.rah.sa.gov.au (8.9.3/8.9.3) id HAA20524; Fri, 20 Sep 2002 07:49:25 +0930 (CST) Received: from unknown(10.19.241.153) by adl0024.rah.sa.gov.au via smap (V4.2) id xma019962; Fri, 20 Sep 02 07:48:28 +0930 Received: from mail.rah.sa.gov.au (sagraha01 [10.19.241.136]) by rahsun153.rah.sa.gov.au (8.9.3+Sun/8.9.3) with ESMTP id HAA04861; Fri, 20 Sep 2002 07:48:27 +0930 (CST) Message-Id: <200209192218.HAA04861@rahsun153.rah.sa.gov.au> Received: from SAGRAHA01/SpoolDir by mail.rah.sa.gov.au (Mercury 1.48); 20 Sep 02 07:48:28 +0930 Received: from SpoolDir by SAGRAHA01 (Mercury 1.48); 20 Sep 02 07:48:08 +0930 From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net, srobinson Date: Fri, 20 Sep 2002 07:48:05 +0930 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Fluctuating dose rate In-reply-to: <4.3.2.7.1.20020919094135.00abeee0@192.168.1.7> X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Andrew Frolov" Organization: Royal Adelaide Hospital To: linac-eng@plato.aristotle.net, srobinson Date: Fri, 20 Sep 2002 07:48:05 +0930 Subject: Re: Fluctuating dose rate In-reply-to: <4.3.2.7.1.20020919094135.00abeee0@192.168.1.7> Sender: owner-linac-eng@plato.aristotle.net Date sent: Thu, 19 Sep 2002 09:43:33 -0500 To: linac-eng@plato.aristotle.net From: srobinson Subject: Fluctuating dose rate > > > I have this problem with a Clinac 2100 C/D that I would like to take some > advise on. Intermittanly the dose rate will climb then and when it servos > itself it back will drop too low and cause a UDR1 and UDR2 I/L. >(3)LD PWR2 fluctuates with D/R. This sounds strange. I'd rather say that the dose rate fluctuates with LD PWR2 (reflected power), which means you have some instability in AFC. Then the dose servo probably tries to compensate for falling dose rate and overshoots. That is where you see the dose rate rising. Firstly I would observe unservoed dose rate until the problem occurs. I expect you will see dropping (not rising) dose rate when your reflected powers starts fluctuating. If this is the point try to troubleshoot the AFC circuit. Good luck. Andrew Frolov Manager, Radiation Engineering Medical Physics Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 20 01:09:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17sAQN-0000XI-00; Fri, 20 Sep 2002 01:09:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 064F81112F3; Fri, 20 Sep 2002 00:46:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA27351 for linac-eng-list; Thu, 19 Sep 2002 17:31:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER ([216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA27347 for ; Thu, 19 Sep 2002 17:31:57 -0500 (CDT) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Thu, 19 Sep 2002 17:37:07 -0500 Message-ID: From: "Turner, Guy" To: "'srobinson'" , linac-eng@plato.aristotle.net Subject: RE: Fluctuating dose rate Date: Thu, 19 Sep 2002 17:37:06 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'srobinson'" , linac-eng@plato.aristotle.net Subject: RE: Fluctuating dose rate Date: Thu, 19 Sep 2002 17:37:06 -0500 Sender: owner-linac-eng@plato.aristotle.net Start by looking at HVPSI, PFN servo off during the problem. That will tell you where to look next. -----Original Message----- From: srobinson [mailto:srobinson@harringtoncc.org] Sent: Thursday, September 19, 2002 9:44 AM To: linac-eng@plato.aristotle.net Subject: Fluctuating dose rate I have this problem with a Clinac 2100 C/D that I would like to take some advise on. Intermittanly the dose rate will climb then and when it servos itself it back will drop too low and cause a UDR1 and UDR2 I/L. At least that is what I believe is happening. This does not happen 100% of the time but it does quite offen. I have looked at the machine on several nights to try and resolve it. When I leave in th PM it alway is at the dose rate I selected and remains there thoughtout the treatment time for serveral treatments. In the AM morning check-out, sometimes its perferct and sometimes its not. Some of the things that I have noticed are as follows: (1)I have noticed and increase in ACL VAC activety lately and I was wondering if this is a possible source of my troubles. I feel that this is important to resolve but was wondering if I have two problems or just one. (2)This seems to be a heat or Beam-On time problem since the longer the Beam-On time is the more accurate the dose rate appears. But it will climb sometimes in the middle of treatment and servo back. (3)LD PWR2 fluctuates with D/R. (4)I have varied Klystron delay with no concrete improvements. (4)I retuned the 18X PRGM BRD and like all other attempts, never fully resolves the problem forever. (5)This seem to happen in all energies but it is really more noticable at 18X. Does anybody have advice on things that I should check for? Thanks too all who reply. One last thing, what is a good way to investigate an Accelerator vacuum leak? Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 20 15:36:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17sNxc-00066s-00; Fri, 20 Sep 2002 15:36:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7ED101112FD; Fri, 20 Sep 2002 15:13:38 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA07933 for linac-eng-list; Fri, 20 Sep 2002 08:12:05 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchvs2.medctr.ad.wfubmc.edu [152.11.200.74]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA07928 for ; Fri, 20 Sep 2002 08:12:02 -0500 (CDT) Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/related; type="multipart/alternative"; boundary="----_=_NextPart_001_01C260A7.3BB5B4F0" X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Subject: CX1140L Thyratrons Date: Fri, 20 Sep 2002 09:11:29 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650389E2@EXCHVS2.medctr.ad.wfubmc.edu> X-MS-Has-Attach: yes Thread-Topic: CX1140L Thyratrons Thread-Index: AcJgp8L4gIi5yCXbT0u7BfkE/fQEBw== From: "Tim Cullen" To: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-Class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Subject: CX1140L Thyratrons Date: Fri, 20 Sep 2002 09:11:29 -0400 X-MS-Has-Attach: yes Thread-Topic: CX1140L Thyratrons Thread-Index: AcJgp8L4gIi5yCXbT0u7BfkE/fQEBw== From: "Tim Cullen" To: Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C260A7.3BB5B4F0 Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01C260A7.3BB5B4F0" ------_=_NextPart_002_01C260A7.3BB5B4F0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Varian 2100 CD 1846: 3rd CX1140L in same week gone bad again. Sound familiar to anyone? The first was the original, had been giving HVOC's during scanning then during Tbix tx's of >1300MU's, usually above 1000MU's. The second was good for one whole day, keep alive made it's way up past +200 VDC, end of life. The third one in there right now will only do somewhere around 700MU's then give HVOC's. Is this happening anywhere else? I had a +2 year old CX1140 in there yesterday that went the whole day without a hiccup, no problems with output. Friday is not a good day for this to happen because the (standup protocol) Tbix patients are at their weakest and you really do not want to extend their tx times by a second more than you have to. If there are any Marconi or Varian representatives who have a good answer regarding these tubes failing prematurely, I would like to hear from you. If there is someone out there who regularly treats Tbix patients, or does anything which requires long beam on times, and has a CX1140L in their machine >2 years old I would be relieved to hear from them also. I also would like to know if there is anyone who has dumped the CX1140L for the CX1140. =20 =20 Tim Cullen Wake Forest University Baptist Medical Center Radiation Oncology Department ------_=_NextPart_002_01C260A7.3BB5B4F0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    Varian 2100 CD 1846: 3rd CX1140L in same week = gone bad=20 again. Sound familiar to anyone?
    The first was the original, had been giving = HVOC's=20 during scanning then during Tbix tx's of >1300MU's, usually above=20 1000MU's.
    The second was good for one whole day, keep = alive made=20 it's way up past +200 VDC, end of life. The third one in there right now = will=20 only do somewhere around 700MU's then give HVOC's.
    Is this happening anywhere else? I had a +2 = year old=20 CX1140 in there yesterday that went the whole day without a hiccup, no = problems=20 with output.
    Friday is not a good day for this to happen = because the=20 (standup protocol) Tbix patients are at their weakest and you really do = not want=20 to extend their tx times by a second more than you have = to.
    If there are any Marconi or Varian = representatives who=20 have a good answer regarding these tubes failing prematurely, I would = like to=20 hear from you. If there is someone out there who regularly treats Tbix = patients,=20 or does anything which requires long beam on times, and has a CX1140L in = their=20 machine >2 years old I would be relieved to hear from them also. = I also=20 would like to know if there is anyone who has dumped the = CX1140L for=20 the CX1140.
     
     
    Tim Cullen
    Wake Forest University = Baptist Medical=20 Center
    Radiation Oncology=20 Department
    =00 ------_=_NextPart_002_01C260A7.3BB5B4F0-- ------_=_NextPart_001_01C260A7.3BB5B4F0 Content-Type: image/gif; name="tech.gif" Content-Transfer-Encoding: base64 Content-ID: <193553712@20092002-1399> Content-Description: tech.gif Content-Location: tech.gif R0lGODlhFAAUAPcAAP//////zP//mf//Zv//M///AP/M///MzP/Mmf/MZv/MM//MAP+Z//+ZzP+Z mf+ZZv+ZM/+ZAP9m//9mzP9mmf9mZv9mM/9mAP8z//8zzP8zmf8zZv8zM/8zAP8A//8AzP8Amf8A Zv8AM/8AAMz//8z/zMz/mcz/Zsz/M8z/AMzM/8zMzMzMmczMZszMM8zMAMyZ/8yZzMyZmcyZZsyZ M8yZAMxm/8xmzMxmmcxmZsxmM8xmAMwz/8wzzMwzmcwzZswzM8wzAMwA/8wAzMwAmcwAZswAM8wA AJn//5n/zJn/mZn/Zpn/M5n/AJnM/5nMzJnMmZnMZpnMM5nMAJmZ/5mZzJmZmZmZZpmZM5mZAJlm /5lmzJlmmZlmZplmM5lmAJkz/5kzzJkzmZkzZpkzM5kzAJkA/5kAzJkAmZkAZpkAM5kAAGb//2b/ zGb/mWb/Zmb/M2b/AGbM/2bMzGbMmWbMZmbMM2bMAGaZ/2aZzGaZmWaZZmaZM2aZAGZm/2ZmzGZm mWZmZmZmM2ZmAGYz/2YzzGYzmWYzZmYzM2YzAGYA/2YAzGYAmWYAZmYAM2YAADP//zP/zDP/mTP/ ZjP/MzP/ADPM/zPMzDPMmTPMZjPMMzPMADOZ/zOZzDOZmTOZZjOZMzOZADNm/zNmzDNmmTNmZjNm MzNmADMz/zMzzDMzmTMzZjMzMzMzADMA/zMAzDMAmTMAZjMAMzMAAAD//wD/zAD/mQD/ZgD/MwD/ AADM/wDMzADMmQDMZgDMMwDMAACZ/wCZzACZmQCZZgCZMwCZAABm/wBmzABmmQBmZgBmMwBmAAAz /wAzzAAzmQAzZgAzMwAzAAAA/wAAzAAAmQAAZgAAMwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAAFAAUAEAIQwBJCBxI sKBBAAgTKlyYUCDDhwsdQpwoceLDihYjksh4cSNHjR9BhmzocSQAjCFRflTJkWVGlxZhUiw5UiZE gzhzBgQAOw== ------_=_NextPart_001_01C260A7.3BB5B4F0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 20 16:59:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17sPFq-0007CJ-00; Fri, 20 Sep 2002 16:59:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4C7061112FD; Fri, 20 Sep 2002 16:36:31 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA09332 for linac-eng-list; Fri, 20 Sep 2002 09:36:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA09328 for ; Fri, 20 Sep 2002 09:36:34 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g8KEaTrF237722; Fri, 20 Sep 2002 10:36:29 -0400 Message-ID: <3D8B3185.9090103@hsc.vcu.edu> Date: Fri, 20 Sep 2002 10:32:37 -0400 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Tim Cullen Cc: linac-eng@plato.aristotle.net Subject: Re: CX1140L Thyratrons References: <9AEEF1FB6254224AA355ED285F8491650389E2@EXCHVS2.medctr.ad.wfubmc.edu> Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 20 Sep 2002 10:32:37 -0400 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: Tim Cullen Cc: linac-eng@plato.aristotle.net Subject: Re: CX1140L Thyratrons Sender: owner-linac-eng@plato.aristotle.net Tim Cullen wrote:
    Message
    Varian 2100 CD 1846: 3rd CX1140L in same week gone bad again. Sound familiar to anyone?
    The first was the original, had been giving HVOC's during scanning then during Tbix tx's of >1300MU's, usually above 1000MU's.
    The second was good for one whole day, keep alive made it's way up past +200 VDC, end of life. The third one in there right now will only do somewhere around 700MU's then give HVOC's.
    Is this happening anywhere else? I had a +2 year old CX1140 in there yesterday that went the whole day without a hiccup, no problems with output.
    Friday is not a good day for this to happen because the (standup protocol) Tbix patients are at their weakest and you really do not want to extend their tx times by a second more than you have to.
    If there are any Marconi or Varian representatives who have a good answer regarding these tubes failing prematurely, I would like to hear from you. If there is someone out there who regularly treats Tbix patients, or does anything which requires long beam on times, and has a CX1140L in their machine >2 years old I would be relieved to hear from them also. I also would like to know if there is anyone who has dumped the CX1140L for the CX1140.
     
     
    Tim Cullen
    Wake Forest University Baptist Medical Center
    Radiation Oncology Department
               

            I feel your pain, I ended up going through three thyratrons. I pulled the spec sheets fromm EEV, You can get them on line. The difference between tubes was the difference was the grid voltage. The older tube would run the newer tube would not. I found a resistor that was questionable and replaced it with no more problems. I do not no if you have the old style modulator. >From the serial number it sounds as if you have the new style.
            I did some extensive research on these tubes. If I have time I will try to dig up all my old notes.


                Chris Bartee


    1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 20 17:29:55 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17sPj9-0007JA-00; Fri, 20 Sep 2002 17:29:55 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 636E71112FC; Fri, 20 Sep 2002 17:06:43 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA10906 for linac-eng-list; Fri, 20 Sep 2002 10:07:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA10899 for ; Fri, 20 Sep 2002 10:07:16 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Fri, 20 Sep 2002 11:06:46 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F035@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Tim Cullen'" , linac-eng@plato.aristotle.net Subject: RE: CX1140L Thyratrons Date: Fri, 20 Sep 2002 11:06:44 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: multipart/mixed; boundary="----_=_NextPart_000_01C260B7.54F63B20" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Tim Cullen'" , linac-eng@plato.aristotle.net Subject: RE: CX1140L Thyratrons Date: Fri, 20 Sep 2002 11:06:44 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_000_01C260B7.54F63B20 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C260B7.54F63B20" ------_=_NextPart_001_01C260B7.54F63B20 Content-Type: text/plain; charset="iso-8859-1" OUCH! Bad for everyone. We are using 1159s, hope no one has seen this with them. I think a year or two ago there was a post on an 1140 problem, with some serial numbers to avoid. Sounds like the tubes are losing hydrogen gas at an amazing rate. Reminds me of a recent DEQ problem, killed some pfn/trg and thy ps pcbs, along with the 8503b tubes in a 2100. It would run a few days and die. Last time, it would run about 1400mu and die. Turned out that the -15v ps from the console was intermittently bad, whether it was the cause or an effect is unknown, but ok since it was replaced. It holds the trigger transistor off. Is your holdoff voltage ok on your 1140? Expect so, since old one works. Jerry -----Original Message----- From: Tim Cullen [mailto:tcullen@wfubmc.edu] Sent: Friday, September 20, 2002 9:11 AM To: linac-eng@plato.aristotle.net Subject: CX1140L Thyratrons Varian 2100 CD 1846: 3rd CX1140L in same week gone bad again. Sound familiar to anyone? The first was the original, had been giving HVOC's during scanning then during Tbix tx's of >1300MU's, usually above 1000MU's. The second was good for one whole day, keep alive made it's way up past +200 VDC, end of life. The third one in there right now will only do somewhere around 700MU's then give HVOC's. Is this happening anywhere else? I had a +2 year old CX1140 in there yesterday that went the whole day without a hiccup, no problems with output. Friday is not a good day for this to happen because the (standup protocol) Tbix patients are at their weakest and you really do not want to extend their tx times by a second more than you have to. If there are any Marconi or Varian representatives who have a good answer regarding these tubes failing prematurely, I would like to hear from you. If there is someone out there who regularly treats Tbix patients, or does anything which requires long beam on times, and has a CX1140L in their machine >2 years old I would be relieved to hear from them also. I also would like to know if there is anyone who has dumped the CX1140L for the CX1140. Tim Cullen Wake Forest University Baptist Medical Center Radiation Oncology Department ------_=_NextPart_001_01C260B7.54F63B20 Content-Type: text/html; charset="iso-8859-1" Message
    OUCH!  Bad for everyone.  We are using 1159s, hope no one has seen this with them.
    I think a year or two ago there was a post on an 1140 problem, with some serial numbers to avoid.  Sounds like the tubes are losing hydrogen gas at an amazing rate.
     
    Reminds me of a recent DEQ problem, killed some pfn/trg and thy ps pcbs, along with the 8503b tubes in a 2100.  It would run a few days and die.  Last time, it would run about 1400mu and die.  Turned out that the -15v ps from the console was intermittently bad, whether it was the cause or  an effect is unknown, but ok since it was replaced.  It holds the trigger transistor off.
    Is your holdoff voltage ok on your 1140?  Expect so, since old one works. 
    Jerry
    -----Original Message-----
    From: Tim Cullen [mailto:tcullen@wfubmc.edu]
    Sent: Friday, September 20, 2002 9:11 AM
    To: linac-eng@plato.aristotle.net
    Subject: CX1140L Thyratrons

    Varian 2100 CD 1846: 3rd CX1140L in same week gone bad again. Sound familiar to anyone?
    The first was the original, had been giving HVOC's during scanning then during Tbix tx's of >1300MU's, usually above 1000MU's.
    The second was good for one whole day, keep alive made it's way up past +200 VDC, end of life. The third one in there right now will only do somewhere around 700MU's then give HVOC's.
    Is this happening anywhere else? I had a +2 year old CX1140 in there yesterday that went the whole day without a hiccup, no problems with output.
    Friday is not a good day for this to happen because the (standup protocol) Tbix patients are at their weakest and you really do not want to extend their tx times by a second more than you have to.
    If there are any Marconi or Varian representatives who have a good answer regarding these tubes failing prematurely, I would like to hear from you. If there is someone out there who regularly treats Tbix patients, or does anything which requires long beam on times, and has a CX1140L in their machine >2 years old I would be relieved to hear from them also. I also would like to know if there is anyone who has dumped the CX1140L for the CX1140.
     
     
    Tim Cullen
    Wake Forest University Baptist Medical Center
    Radiation Oncology Department
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If it is a failure of the 6x target, as I have experienced, it will get worse as 6x runs. It is extremely important to crash the machine with emergency off if you get a VAC 1 that may be the target, to minimize the amount of water that gets into the waveguide. If you are seeing some activity, beam off, and think it is the target, disconnect, blow out, and seal off the water line to the target for testing. I would tell the therapists to crash the machine if they get a vac ilk. What is afc diff doing? Not hitting the limit? PFN V? Only takes about .1 on PFN v to make a difference. Gun I pulse stable? Change gun I a little, see how much it would need to change to make the effect you see, then look. RF Driver level? Event log should have a lot of info on the above. Make some yourself by turning off the key when it is running, compare. Note that values are different between service and event log. Good luck, Jerry -----Original Message----- From: srobinson [mailto:srobinson@harringtoncc.org] Sent: Thursday, September 19, 2002 10:44 AM To: linac-eng@plato.aristotle.net Subject: Fluctuating dose rate I have this problem with a Clinac 2100 C/D that I would like to take some advise on. Intermittanly the dose rate will climb then and when it servos itself it back will drop too low and cause a UDR1 and UDR2 I/L. At least that is what I believe is happening. This does not happen 100% of the time but it does quite offen. I have looked at the machine on several nights to try and resolve it. When I leave in th PM it alway is at the dose rate I selected and remains there thoughtout the treatment time for serveral treatments. In the AM morning check-out, sometimes its perferct and sometimes its not. Some of the things that I have noticed are as follows: (1)I have noticed and increase in ACL VAC activety lately and I was wondering if this is a possible source of my troubles. I feel that this is important to resolve but was wondering if I have two problems or just one. (2)This seems to be a heat or Beam-On time problem since the longer the Beam-On time is the more accurate the dose rate appears. But it will climb sometimes in the middle of treatment and servo back. (3)LD PWR2 fluctuates with D/R. (4)I have varied Klystron delay with no concrete improvements. (4)I retuned the 18X PRGM BRD and like all other attempts, never fully resolves the problem forever. (5)This seem to happen in all energies but it is really more noticable at 18X. Does anybody have advice on things that I should check for? Thanks too all who reply. One last thing, what is a good way to investigate an Accelerator vacuum leak? Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 20 22:04:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17sU0i-000800-00; Fri, 20 Sep 2002 22:04:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BB5B01112FC; Fri, 20 Sep 2002 21:41:07 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA16419 for linac-eng-list; Fri, 20 Sep 2002 14:38:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from cartimail.carti.com (proxy.carti.com [65.66.64.157]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA16415 for ; Fri, 20 Sep 2002 14:38:14 -0500 (CDT) Subject: Varian 2100C for sale MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Date: Fri, 20 Sep 2002 14:36:58 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Message-ID: <456543C21489CA41BF1D6A22A721F5AA431EC2@cartimail.carti.com> Content-Class: urn:content-classes:message Thread-Topic: Varian 2100C for sale Thread-Index: AcJg3ViVqGHak7UWEda0zADQt1rYYg== From: "Jim Beaty" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA16416 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Subject: Varian 2100C for sale Date: Fri, 20 Sep 2002 14:36:58 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Content-Class: urn:content-classes:message Thread-Topic: Varian 2100C for sale Thread-Index: AcJg3ViVqGHak7UWEda0zADQt1rYYg== From: "Jim Beaty" To: X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA16416 Sender: owner-linac-eng@plato.aristotle.net CARTI, Inc., of Little Rock, AR has a Varian CL2100C for sale. Machine Specifications: S/N: 60 Date of installation: September, 1989 Energies: 6,9,12,16,20e 6,18x Counterweight (no beamstopper) Dual Independent Jaws, Type III accessories Wedges: 15, 30, 45 degrees @ 20X40cm; 60 degrees @ 15X40cm ETR couch Console PC: Dell Optiplex Gxa Console Software: Version 5.4 Beam Hours: 18211 Filament Hours: 46789 Machine has been in continuous operation since installation. Average downtime for the last 3 years is less than 1%. Removal date is 31 October, 2002. For more information, please email me at jbeaty@carti.com. Jim Beaty Chief Engineer CARTI, Inc. P.O. Box 55050 Little Rock, AR 72215 ph. (501) 296-3279 fax (501) 660-7601 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 23 15:23:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17tTBg-0001Oj-00; Mon, 23 Sep 2002 15:23:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 979071112F4; Mon, 23 Sep 2002 14:59:24 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA13356 for linac-eng-list; Mon, 23 Sep 2002 07:53:19 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchvs2.medctr.ad.wfubmc.edu [152.11.200.73] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA13348 for ; Mon, 23 Sep 2002 07:53:14 -0500 (CDT) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/related; boundary="----_=_NextPart_001_01C26300.19AC6E6B"; type="multipart/alternative" Subject: CX1140L X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Date: Mon, 23 Sep 2002 08:52:40 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F8491650389E3@EXCHVS2.medctr.ad.wfubmc.edu> X-MS-Has-Attach: yes Thread-Topic: CX1140L Thread-Index: AcJjAJpa4k86wxX3QsyUuLrAhtHvHw== From: "Tim Cullen" To: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Subject: CX1140L X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Date: Mon, 23 Sep 2002 08:52:40 -0400 X-MS-Has-Attach: yes Thread-Topic: CX1140L Thread-Index: AcJjAJpa4k86wxX3QsyUuLrAhtHvHw== From: "Tim Cullen" To: Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C26300.19AC6E6B Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01C26300.19AC6E6B" ------_=_NextPart_002_01C26300.19AC6E6B Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Thanks for the replies, 3 "new" CX1140L's later, we have a winner! I came in Saturday and put one that Varian flew in Friday. It's doing good right at the moment. I did several long "heat" runs on it Saturday and the therapist just did their first Tbix this morning without a hitch. If this one is still doing well by the end of the week I would say we just depleted the old stock they had laying around, and anyone wanting a tube now would be assured of getting a "fresh" one. Someone mentioned DQing, it was fine. I believe someone asked about the program voltage and it was 8.12 on 18MV. Thanks again, =20 Tim Cullen Wake Forest University Baptist Medical Center Radiation Oncology Department ------_=_NextPart_002_01C26300.19AC6E6B Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    Thanks for the replies, 3 "new" CX1140L's = later, we=20 have a winner! I came in Saturday and put one that Varian flew in = Friday. It's=20 doing good right at the moment. I did several long "heat" runs on it = Saturday=20 and the therapist just did their first Tbix this morning without a = hitch. If=20 this one is still doing well by the end of the week I would say we just = depleted=20 the old stock they had laying around, and anyone wanting a tube now = would be=20 assured of getting a "fresh" one.
    Someone mentioned DQing, it was fine. I = believe someone=20 asked about the program voltage and it was 8.12 on = 18MV.
    Thanks again,
     
    Tim Cullen
    Wake Forest University = Baptist Medical=20 Center
    Radiation Oncology=20 Department
    =00 ------_=_NextPart_002_01C26300.19AC6E6B-- ------_=_NextPart_001_01C26300.19AC6E6B Content-Type: image/gif; name="tech.gif" Content-Transfer-Encoding: base64 Content-ID: <640313912@23092002-0973> Content-Description: tech.gif Content-Location: tech.gif R0lGODlhFAAUAPcAAP//////zP//mf//Zv//M///AP/M///MzP/Mmf/MZv/MM//MAP+Z//+ZzP+Z mf+ZZv+ZM/+ZAP9m//9mzP9mmf9mZv9mM/9mAP8z//8zzP8zmf8zZv8zM/8zAP8A//8AzP8Amf8A Zv8AM/8AAMz//8z/zMz/mcz/Zsz/M8z/AMzM/8zMzMzMmczMZszMM8zMAMyZ/8yZzMyZmcyZZsyZ M8yZAMxm/8xmzMxmmcxmZsxmM8xmAMwz/8wzzMwzmcwzZswzM8wzAMwA/8wAzMwAmcwAZswAM8wA AJn//5n/zJn/mZn/Zpn/M5n/AJnM/5nMzJnMmZnMZpnMM5nMAJmZ/5mZzJmZmZmZZpmZM5mZAJlm /5lmzJlmmZlmZplmM5lmAJkz/5kzzJkzmZkzZpkzM5kzAJkA/5kAzJkAmZkAZpkAM5kAAGb//2b/ zGb/mWb/Zmb/M2b/AGbM/2bMzGbMmWbMZmbMM2bMAGaZ/2aZzGaZmWaZZmaZM2aZAGZm/2ZmzGZm mWZmZmZmM2ZmAGYz/2YzzGYzmWYzZmYzM2YzAGYA/2YAzGYAmWYAZmYAM2YAADP//zP/zDP/mTP/ ZjP/MzP/ADPM/zPMzDPMmTPMZjPMMzPMADOZ/zOZzDOZmTOZZjOZMzOZADNm/zNmzDNmmTNmZjNm MzNmADMz/zMzzDMzmTMzZjMzMzMzADMA/zMAzDMAmTMAZjMAMzMAAAD//wD/zAD/mQD/ZgD/MwD/ AADM/wDMzADMmQDMZgDMMwDMAACZ/wCZzACZmQCZZgCZMwCZAABm/wBmzABmmQBmZgBmMwBmAAAz /wAzzAAzmQAzZgAzMwAzAAAA/wAAzAAAmQAAZgAAMwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAAFAAUAEAIQwBJCBxI sKBBAAgTKlyYUCDDhwsdQpwoceLDihYjksh4cSNHjR9BhmzocSQAjCFRflTJkWVGlxZhUiw5UiZE gzhzBgQAOw== ------_=_NextPart_001_01C26300.19AC6E6B-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 23 16:59:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17tUft-0002e2-00; Mon, 23 Sep 2002 16:59:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7C7BE1112F4; Mon, 23 Sep 2002 16:34:40 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA14823 for linac-eng-list; Mon, 23 Sep 2002 09:28:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xchange.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA14819 for ; Mon, 23 Sep 2002 09:28:23 -0500 (CDT) Received: by xchange.umcaz.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 23 Sep 2002 07:27:53 -0700 Message-ID: From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Leaving MD-2 On Date: Mon, 23 Sep 2002 07:27:52 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Watters, Dan" To: "'linac-eng@plato.aristotle.net'" Subject: Leaving MD-2 On Date: Mon, 23 Sep 2002 07:27:52 -0700 Sender: owner-linac-eng@plato.aristotle.net Thanks to all that responded to my inquiry about leaving the machine running all night and the flatness faults we have been experiencing. Of course all the safety issues that were brought up were valid but the one that hit me the most was the possibility of water lines blowing off. We have had that happen a couple of times. Our newer machine has the new target and the better fittings. The older one does not. I don't believe our machines will be left on over night in the future. It actually only happened the one night. Many good suggestions were received concerning the intermittent flatness faults. The gantry angle has remained at zero since the Blue Phantom tank is under the head. This machine is seldom used for patients now. Did the easy possible fix first and changed the tube on the injector. Repeaked everything and had no flatness faults during that procedure. Dose pulse looked a little better. Hopefully physics will finish the annual this week and, if necessary, further troubleshooting can take place. Thanks again to everyone. Have a great week, Dan Watters UMC Tucson, AZ. > CONFIDENTIALITY NOTICE > This message and any included attachments are from University Medical > Center Corp and are intended only for the addressee. The information > contained in this message is confidential and may constitute inside or > non-public information under international, federal, or state laws and is > intended only for the use of the addressee. Unauthorized forwarding, > copying, printing, distributing, or using such information is strictly > prohibited and may be unlawful. If you are not the addressee, please > promptly delete this message and notify the sender of the delivery error > by e-mail or you may call University Medical Center in Tucson, Arizona, > USA at (+1) (520) 694-6417. > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Sep 24 01:25:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17tca7-00051B-00; Tue, 24 Sep 2002 01:25:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CCDC11112F1; Tue, 24 Sep 2002 01:01:04 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA25060 for linac-eng-list; Mon, 23 Sep 2002 17:57:12 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA25056 for ; Mon, 23 Sep 2002 17:57:10 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id SAA21173; Mon, 23 Sep 2002 18:49:44 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma020985; Mon, 23 Sep 02 18:49:05 -0400 Subject: dose rate servo To: linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Mon, 23 Sep 2002 17:55:42 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 09/23/2002 05:55:42 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: dose rate servo To: linac-eng@plato.aristotle.net Date: Mon, 23 Sep 2002 17:55:42 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 09/23/2002 05:55:42 PM Sender: owner-linac-eng@plato.aristotle.net Good Day Having a problem with my 600c, The dose rate it is running approx 10-12% high and the dose rate servo is not pulling it back to selected dose rate ie 200 rep rate running about 224... Any thoughts ? we've replaced the timer interface ,control timer , afc misc, pfn d'queing amp the clinac seems to be running OK just a bit fast.... Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Sep 24 02:14:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17tdLT-00056E-00; Tue, 24 Sep 2002 02:14:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C6A311112F4; Tue, 24 Sep 2002 01:50:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA25980 for linac-eng-list; Mon, 23 Sep 2002 18:50:37 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA25976 for ; Mon, 23 Sep 2002 18:50:34 -0500 (CDT) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper2.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id LAA20916 for ; Tue, 24 Sep 2002 11:48:07 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Tue, 24 Sep 2002 11:46:54 -0500 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 24 Sep 2002 11:49:26 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 24 Sep 2002 11:49:10 +1200 From: "Dave Pinchin" To: , Subject: Re: dose rate servo Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA25977 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 24 Sep 2002 11:49:10 +1200 From: "Dave Pinchin" To: , Subject: Re: dose rate servo Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA25977 Sender: owner-linac-eng@plato.aristotle.net G'day, Does your machine have portalvision??? If so check the PFS. and switching signals. :D >>> 24/09/02 10:55:42 >>> Good Day Having a problem with my 600c, The dose rate it is running approx 10-12% high and the dose rate servo is not pulling it back to selected dose rate ie 200 rep rate running about 224... Any thoughts ? we've replaced the timer interface ,control timer , afc misc, pfn d'queing amp the clinac seems to be running OK just a bit fast.... Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Sep 24 03:31:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17teXh-0005FG-00; Tue, 24 Sep 2002 03:31:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D75CD1112F4; Tue, 24 Sep 2002 03:06:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA27291 for linac-eng-list; Mon, 23 Sep 2002 20:10:35 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [203.5.110.194] (burnia.dmz.health.nsw.gov.au [203.5.110.252]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id UAA27287 for ; Mon, 23 Sep 2002 20:10:33 -0500 (CDT) Received: from bablia.ccf.health.nsw.gov.au by [203.5.110.194] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 24 Sep 2002 01:10:33 UT Received: from mxscan ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.0-24 #44005) with SMTP id <01KMVKTZQ35O001I9H@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Tue, 24 Sep 2002 11:09:56 -0500 (EST) Received: from DOH_HUB-Message_Server by doh.health.nsw.gov.au with Novell_GroupWise; Tue, 24 Sep 2002 11:06:24 +1000 Date: Tue, 24 Sep 2002 11:09:36 +1000 From: Vince Reynolds Subject: Keithley 35060 Digital Output Constancy Meter To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise 5.5.2 Content-type: multipart/mixed; boundary="----=_NextPartTM-000-0882092b-b94c-4423-bc05-2d38ff37582a" Content-disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 24 Sep 2002 11:09:36 +1000 From: Vince Reynolds Subject: Keithley 35060 Digital Output Constancy Meter To: linac-eng@plato.aristotle.net Content-disposition: inline Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPartTM-000-0882092b-b94c-4423-bc05-2d38ff37582a Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Basically-Help! I have a pair of constancy meters exhibiting the same traits-both are 7 = years old in use daily. These traits being 1)Zero setting drifts by 1 count minute (not point = one!) 2)Charge reading drops rapidly = -should hold it until=20 read. New batteries do not help-does any body have circuits or advice from = experiencing the same problems? many thanks Vince Royal North Shore Hospital=20 Sydney=20 Australia ------=_NextPartTM-000-0882092b-b94c-4423-bc05-2d38ff37582a Content-Type: text/plain; name="InterScan_Disclaimer.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="InterScan_Disclaimer.txt" This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health. ------=_NextPartTM-000-0882092b-b94c-4423-bc05-2d38ff37582a-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Sep 24 22:18:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17tw8c-0005MU-00; Tue, 24 Sep 2002 22:18:30 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 52DD81112F5; Tue, 24 Sep 2002 21:53:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA13822 for linac-eng-list; Tue, 24 Sep 2002 14:54:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA13818 for ; Tue, 24 Sep 2002 14:54:08 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Tue, 24 Sep 2002 15:53:37 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F03D@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Dave Pinchin'" , lsullivan@bhcpns.org, linac-eng@plato.aristotle.net Subject: RE: dose rate servo Date: Tue, 24 Sep 2002 15:53:28 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Dave Pinchin'" , lsullivan@bhcpns.org, linac-eng@plato.aristotle.net Subject: RE: dose rate servo Date: Tue, 24 Sep 2002 15:53:28 -0400 Sender: owner-linac-eng@plato.aristotle.net Agree with Dave, have seen PV lose ability to control dose rate on 2100. Looked at gun pulse width on that machine. -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Monday, September 23, 2002 7:49 PM To: lsullivan@bhcpns.org; linac-eng@plato.aristotle.net Subject: Re: dose rate servo G'day, Does your machine have portalvision??? If so check the PFS. and switching signals. :D >>> 24/09/02 10:55:42 >>> Good Day Having a problem with my 600c, The dose rate it is running approx 10-12% high and the dose rate servo is not pulling it back to selected dose rate ie 200 rep rate running about 224... Any thoughts ? we've replaced the timer interface ,control timer , afc misc, pfn d'queing amp the clinac seems to be running OK just a bit fast.... Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Sep 24 22:19:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17tw9d-0005NF-00; Tue, 24 Sep 2002 22:19:33 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DD4641112F5; Tue, 24 Sep 2002 21:54:41 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA13811 for linac-eng-list; Tue, 24 Sep 2002 14:51:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA13807 for ; Tue, 24 Sep 2002 14:51:42 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Tue, 24 Sep 2002 15:51:07 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F03C@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Vince Reynolds'" , linac-eng@plato.aristotle.net Subject: RE: Keithley 35060 Digital Output Constancy Meter Date: Tue, 24 Sep 2002 15:51:02 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Vince Reynolds'" , linac-eng@plato.aristotle.net Subject: RE: Keithley 35060 Digital Output Constancy Meter Date: Tue, 24 Sep 2002 15:51:02 -0400 Sender: owner-linac-eng@plato.aristotle.net Most of these devices can be thought of as equivalent to an op amp integrating circuit using a feedback capacitor. If there is leakage current in the ion chamber detectors (radiation damage?) it will integrate it. If the cable is dirty (leave them connected!), the offset voltage of the amp input will cause a current through the lowered resistance, which again will be integrated. The op amp ( equivalent) can also develope leakage currents and unbalances, and offset v, especially if exposed to shocks like disconnecting it with the power on. The amp feedback/storage capacitor also can leak/discharge, especially in high (>60%)humidity. High humidity will aggravate all problems related to dirty parts. You are working with currents of .001 microamp or less, resistances of 1000 megohms or more, so it takes very little to upset the circuits. One fingerprint will do it. You may clean connectors and boards with ethyl(only!) alcohol, using a barely damp device, being careful not to let any wick into connections. Allow to dry for at least a day, never blow on it, etc. Interchanging parts is a useful technique to check for drift, as long as you don't spread contamination. For the single input electrometers, there are ways to put a charge in, disconnect the cable, and watch if it drifts. It involves using a coax adapter, and a polystyrene capacitor in series with a voltage source, Q=CV. Not something to do if you haven't worked on these. Unless you are using the same cable for your tests, the only common factor apparent is humidity and radiation exposures. I am surprised if the two behave exactly the same. I would expect you to need a factory repair once you have isolated the problem to one part. Hope this gives you some ideas. Jerry -----Original Message----- From: Vince Reynolds [mailto:VReynold@doh.health.nsw.gov.au] Sent: Monday, September 23, 2002 9:10 PM To: linac-eng@plato.aristotle.net Subject: Keithley 35060 Digital Output Constancy Meter Hi Basically-Help! I have a pair of constancy meters exhibiting the same traits-both are 7 years old in use daily. These traits being 1)Zero setting drifts by 1 count minute (not point one!) 2)Charge reading drops rapidly -should hold it until read. New batteries do not help-does any body have circuits or advice from experiencing the same problems? many thanks Vince Royal North Shore Hospital Sydney Australia 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 25 14:38:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uBRK-00042O-00; Wed, 25 Sep 2002 14:38:50 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DA7781112F3; Wed, 25 Sep 2002 14:13:41 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA28376 for linac-eng-list; Wed, 25 Sep 2002 07:13:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA28372 for ; Wed, 25 Sep 2002 07:13:49 -0500 (CDT) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Wed, 25 Sep 2002 09:17:36 -0300 Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: Ximatron Warning message Date: Wed, 25 Sep 2002 09:09:40 -0300 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: Ximatron Warning message Date: Wed, 25 Sep 2002 09:09:40 -0300 X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-linac-eng@plato.aristotle.net Hi Group While performing morning Fluoro warm up on our Ximatron the following message occur on the XimaVision workstation: WARNING The Couch Vertical position maybe ambiguous in the current display scale. The message would clear if the couch vertical was position to a height above the image intensifier. Our Ximatron is a CX s/n 790 with XimaVision V6.1. Any suggestion would greatly be appreciated. Thanks to all ahead of time. ________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8076 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Sep 25 20:42:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uH6s-0006na-00; Wed, 25 Sep 2002 20:42:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 582E91112F1; Wed, 25 Sep 2002 20:16:51 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA05594 for linac-eng-list; Wed, 25 Sep 2002 13:14:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m01.mx.aol.com (imo-m01.mx.aol.com [64.12.136.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA05589 for ; Wed, 25 Sep 2002 13:13:58 -0500 (CDT) From: RSAINC1@aol.com Received: from RSAINC1@aol.com by imo-m01.mx.aol.com (mail_out_v34.10.) id y.188.e9920ae (18707); Wed, 25 Sep 2002 14:13:23 -0400 (EDT) Message-ID: <188.e9920ae.2ac356c3@aol.com> Date: Wed, 25 Sep 2002 14:13:23 EDT Subject: CT option test jigs To: linac-eng@plato.aristotle.net, Linac-eng@plato1.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10637 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: RSAINC1@aol.com Date: Wed, 25 Sep 2002 14:13:23 EDT Subject: CT option test jigs To: linac-eng@plato.aristotle.net, Linac-eng@plato1.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Hello all, I am trying to make up a test jig assortment for the Varian Ximatron simulator with the CT option. I am looking for the Z test pattern in perticular. It would be mounted to a post collimator device that slides into the cassette holder on top of the Image Intensifier. If anyone out there has/had the ct option but shut it down or packed it up, I would be willing to purchase this Z test pattern and any other testing jigs or devices you may want to sell. Thank you, Roger Wood RS&A, Inc. phone: 800-320-4332 pager: 888-849-2775 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 26 12:39:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uW35-0003nd-00; Thu, 26 Sep 2002 12:39:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E120F1112F1; Thu, 26 Sep 2002 12:13:38 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id FAA22248 for linac-eng-list; Thu, 26 Sep 2002 05:06:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id FAA22244 for ; Thu, 26 Sep 2002 05:06:49 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g8QA6Jdk009201 for ; Thu, 26 Sep 2002 05:06:19 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g8QA6JTt009198 for ; Thu, 26 Sep 2002 05:06:19 -0500 (CDT) Received: through eSafe SMTP Relay 1031310708; Thu Sep 26 05:06:19 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 26 Sep 2002 05:06:19 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5F84@wmhmail.phci.org> From: "Williams, Rod" To: "'linac-eng@plato.aristotle.net'" Subject: FW: Quiz Date: Thu, 26 Sep 2002 05:05:51 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/mixed; boundary="----_=_NextPart_000_01C26544.4B5D6A70" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'linac-eng@plato.aristotle.net'" Subject: FW: Quiz Date: Thu, 26 Sep 2002 05:05:51 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_000_01C26544.4B5D6A70 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C26544.4B5D6A70" ------_=_NextPart_001_01C26544.4B5D6A70 Content-Type: text/plain > Try taking this quiz. Think of a answer first then open the txt file. > > > > At the funeral of her mother, a girl met a guy whom she did not know. She > thought he was amazing, so much her dreamguy she believed him to be, that > she fell in love with him there and then. A few days later the girl killed > her own sister. Question: What is her motive in killing her sister ??? > > Rod.Williams@phci.org > WAUKESHA MEMORIAL > RODDMOD@HOTMAIL.COM > ENCORE ENGINEERING SERVICES <> > 7906 W.DIXON ST > MILWAUKEE, WI 53214 > 414-443-6430 > 262-928-4734 > > > ------_=_NextPart_001_01C26544.4B5D6A70 Content-Type: text/html Content-Transfer-Encoding: quoted-printable FW: Quiz




    Try taking this quiz. Think of a answer = first then open the txt file.



    At the funeral of her mother, a girl met= a guy whom she did not know.  She thought he was amazing, so much h= er dreamguy she believed him to be, that she fell in love with him there = and then. A few days later the girl killed her own sister. Question: What= is her motive in killing her sister ???

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES <<Answer to Quiz.txt>>
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



    ------_=_NextPart_001_01C26544.4B5D6A70-- ------_=_NextPart_000_01C26544.4B5D6A70 Content-Type: text/plain; name="Answer to Quiz.txt" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="Answer to Quiz.txt" PSYCHOLOGICAL QUIZ ANALYSIS She was hoping that the guy would appear at the funeral again. If you answered this correctly, you think like a psychopath. This was = a test by a famous American psychologist used to test if one has the = same mentality as a killer. Many arrested serial killers took part in this test and answered = correctly. If you didnt answer correctly - good for you. If your = friends hit the jackpot, may I suggest that you keep your distance. ------_=_NextPart_000_01C26544.4B5D6A70-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 26 15:48:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uZ0G-0006In-00; Thu, 26 Sep 2002 15:48:28 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 612891112F2; Thu, 26 Sep 2002 15:22:50 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA25413 for linac-eng-list; Thu, 26 Sep 2002 08:23:30 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA25409 for ; Thu, 26 Sep 2002 08:23:16 -0500 (CDT) From: clbartee@hsc.vcu.edu Received: from mail2.vcu.edu (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id JAA30003 for ; Thu, 26 Sep 2002 09:23:15 -0400 Message-Id: <200209261323.JAA30003@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1 User-Agent: IMHO/0.98.3 (Webmail for Roxen) MIME-Version: 1.0 In-Reply-To: <188.e9920ae.2ac356c3@aol.com> To: linac-eng@plato.aristotle.net Date: Thu, 26 Sep 2002 09:23:15 -0400 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu In-Reply-To: <188.e9920ae.2ac356c3@aol.com> To: linac-eng@plato.aristotle.net Date: Thu, 26 Sep 2002 09:23:15 -0400 Sender: owner-linac-eng@plato.aristotle.net Does anybody know if or when we should be receiving more information from the linear accelerator group? Chris Bartee 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 26 16:21:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uZW6-0006np-00; Thu, 26 Sep 2002 16:21:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 31B7C1112F1; Thu, 26 Sep 2002 15:55:46 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA26468 for linac-eng-list; Thu, 26 Sep 2002 09:00:21 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA26460 for ; Thu, 26 Sep 2002 09:00:19 -0500 (CDT) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Thu, 26 Sep 2002 10:05:05 -0400 Message-ID: <1082075133C0D511AAC8000255F0072924C528@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Thu, 26 Sep 2002 10:05:04 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Thu, 26 Sep 2002 10:05:04 -0400 Sender: owner-linac-eng@plato.aristotle.net Gentlemen, I have a 2100SC, serial number 1884 with a Millennium MLC 120 leaf, version 6.2 soft wear. We use impac for our R/V system using version 5.3 soft wear. Our treatment planning computer is a CMS system using version 3.2.1 soft wear. Our problem is that anytime we have a field using independent jaws and then try to set up for a port film the standard collimator jaws will not move into the required position but the MLC jaws do. Does anyone have a similar system or have you had this same scenario and found a fix. As always thank you in advance for any help. Hope to see you all at next years RSEA meeting. Bill Hughes Regional Cancer Center Erie, Pa. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 26 16:48:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uZwN-00071i-00; Thu, 26 Sep 2002 16:48:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 690B71112F1; Thu, 26 Sep 2002 16:22:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA27254 for linac-eng-list; Thu, 26 Sep 2002 09:29:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from CCMAIL.GENERALHEALTH.ORG ([64.56.16.29]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA27250 for ; Thu, 26 Sep 2002 09:29:53 -0500 (CDT) Received: from ccMail by CCMAIL.GENERALHEALTH.ORG (IMA Internet Exchange 3.13) id 00166C50; Thu, 26 Sep 2002 09:27:56 -0500 Mime-Version: 1.0 Date: Thu, 26 Sep 2002 09:27:38 -0500 Message-ID: <00166C50.C22279@GENERALHEALTH.ORG> From: Kevin_Martin@generalhealth.org (Kevin Martin) Subject: Beamview - Unix platform To: linac-eng@plato.aristotle.net Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 26 Sep 2002 09:27:38 -0500 From: Kevin_Martin@generalhealth.org (Kevin Martin) Subject: Beamview - Unix platform To: linac-eng@plato.aristotle.net Content-Description: cc:Mail note part Sender: owner-linac-eng@plato.aristotle.net If interested in spare parts for Siemens Beamview please respond to me by email and of course have a good day EH! kevin martin 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Sep 26 17:40:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ual0-0007RB-00; Thu, 26 Sep 2002 17:40:51 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A502A1112F1; Thu, 26 Sep 2002 17:15:10 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA29698 for linac-eng-list; Thu, 26 Sep 2002 10:12:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep01.biz.rr.com (fep01.biz.rr.com [24.30.200.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29694 for ; Thu, 26 Sep 2002 10:12:51 -0500 (CDT) Received: from pent4 ([24.174.72.124]) by fep01.biz.rr.com with ESMTP id <20020926151251.ENZ1586.fep01.biz.rr.com@pent4> for ; Thu, 26 Sep 2002 11:12:51 -0400 From: "Thomas McCausland" To: "'linac-eng@plato.aristotle.net'" Date: Thu, 26 Sep 2002 10:11:51 -0500 MIME-Version: 1.0 Content-type: text/enriched; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: FW: Quiz Reply-To: acceltek@acceltekservice.com Message-ID: <3D92DD67.22529.18E6E8@localhost> In-reply-to: <7A3389A8D723D511B2260008C7B2BF390D5F84@wmhmail.phci.org> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: "'linac-eng@plato.aristotle.net'" Date: Thu, 26 Sep 2002 10:11:51 -0500 Subject: Re: FW: Quiz Reply-To: acceltek@acceltekservice.com In-reply-to: <7A3389A8D723D511B2260008C7B2BF390D5F84@wmhmail.phci.org> Sender: owner-linac-eng@plato.aristotle.net From: 0000,0000,8000"Williams, Rod" < To: 0000,0000,8000"'linac-eng@plato.aristotle.net'" < Subject: 0000,0000,8000FW: Quiz Date sent: 0000,0000,8000Thu, 26 Sep 2002 05:05:51 -0500 7F00,0000,0000> Try taking this quiz. Think of a answer first then open the txt file. > > > > At the funeral of her mother, a girl met a guy whom she did not know. She > thought he was amazing, so much her dreamguy she believed him to be, that > she fell in love with him there and then. A few days later the girl killed > her own sister. Question: What is her motive in killing her sister ??? > > Rod.Williams@phci.org My guess? The girl was a linac engineer who had worked on one too many linacs with some strange, off-the-wall, intermittant problem. She went insane and her sister just happened to be there when she finally snapped. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 27 15:40:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uvMB-00068A-00; Fri, 27 Sep 2002 15:40:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B64E1112F1; Fri, 27 Sep 2002 15:14:35 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA21481 for linac-eng-list; Fri, 27 Sep 2002 08:21:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from whses01.wellmont.org (whses01.wellmont.org [151.102.96.168]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA21474 for ; Fri, 27 Sep 2002 08:21:16 -0500 (CDT) Received: by whses01.wellmont.org with Internet Mail Service (5.5.2653.19) id ; Fri, 27 Sep 2002 09:20:43 -0400 Message-ID: <7AF61AA0D5DBD511B2990090274E7316796979@whses02.wellmont.org> From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: Turbo Vacuum Pump Station Date: Fri, 27 Sep 2002 09:20:38 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Falcinelli, Marc A" To: "'Linac Engineers List'" Subject: Turbo Vacuum Pump Station Date: Fri, 27 Sep 2002 09:20:38 -0400 Sender: owner-linac-eng@plato.aristotle.net Fellow Engineers, Anybody have any information on where I may be able to purchase a new or used Turbo Vacuum Pump station for use on VMS accelerators? If a complete station is not available for sale, does anybody have a parts list needed to build a station? Thank you all for any information you may be able to provide. Marc 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Sep 27 19:27:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17uytj-0007Uh-00; Fri, 27 Sep 2002 19:27:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 682301112F3; Fri, 27 Sep 2002 19:01:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA27269 for linac-eng-list; Fri, 27 Sep 2002 11:58:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA27263 for ; Fri, 27 Sep 2002 11:58:45 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 17uyRS-0003BM-00; Fri, 27 Sep 2002 17:58:14 +0100 Received: from relay.nhs.uk (194.62.42.143) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D908C0F0007C33C for linac-eng@plato.aristotle.net; Fri, 27 Sep 2002 17:58:14 +0100 Received: from relay.wales.nhs.uk (194.189.180.1) by relay.nhs.uk (Syntegra-3 6.5.026) id 3D92E8A300047E9B for linac-eng@plato.aristotle.net; Fri, 27 Sep 2002 17:58:14 +0100 X-Internal-ID: 3D92B9910001DE5B Received: from ygc-mail.cd-tr.wales.nhs.uk (131.3.9.10) by relay.wales.nhs.uk (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 27 Sep 2002 17:59:38 +0100 Received: by YGC-MAIL with Internet Mail Service (5.5.2653.19) id ; Fri, 27 Sep 2002 17:59:27 +0100 Message-ID: <4BD1673C955CD41182DA00508BACF2DF01BD4FB3@YGC-MAIL> From: "Jordan, Tom" To: linac-eng@plato.aristotle.net Subject: in-room monitors Date: Fri, 27 Sep 2002 17:59:18 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Internal-ID: 3D92B9910001DE5B From: "Jordan, Tom" To: linac-eng@plato.aristotle.net Subject: in-room monitors Date: Fri, 27 Sep 2002 17:59:18 +0100 Sender: owner-linac-eng@plato.aristotle.net I would be interested in any good solutions you might have come across for in-room monitors. We have one girl whose vision is slightly impaired and struggles a little with our existing one monitor layout. (More than the usual reluctance to wear glasses). What do others do? Are 2 monitors commonly purchased? What is the optimum positioning? Has anyone ever had an LCD slave attached at eye-level to the wall at the bottom of the couch, or other innovative solution? Best wishes to all Tom T J Jordan Head of Radiotherapy Physics North Wales Medical Physics Conwy &Denbighshire NHS Trust Bodelwyddan Denbighshire LL18 5UJ > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 14:25:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17vzcY-0000r4-00; Mon, 30 Sep 2002 14:25:54 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D0D121112F1; Mon, 30 Sep 2002 13:58:38 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA02536 for linac-eng-list; Mon, 30 Sep 2002 06:56:40 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA02532 for ; Mon, 30 Sep 2002 06:56:38 -0500 (CDT) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id 71C041112F1 for ; Mon, 30 Sep 2002 13:35:17 +0200 (METDST) Received: from (kanon.radth.ruu.nl) [131.211.145.47] (mail) by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17vzFv-0000fN-00; Mon, 30 Sep 2002 14:02:31 +0200 Received: from kok by kanon.radth.ruu.nl with local (Exim 3.35 #1 (Debian)) id 17vzFu-0002PZ-00 for ; Mon, 30 Sep 2002 14:02:30 +0200 To: linac-eng@plato.aristotle.net Subject: new version linac FAQ list From: Jan Kok Message-Id: Date: Mon, 30 Sep 2002 14:02:30 +0200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: linac-eng@plato.aristotle.net Subject: new version linac FAQ list From: Jan Kok Date: Mon, 30 Sep 2002 14:02:30 +0200 Sender: owner-linac-eng@plato.aristotle.net Dear colleagues, The 13th version of the Internet page: Frequently Asked Questions: Elekta SL25 series Linear~Accelerators and accessories. In now available on: http://www.isi.uu.nl/radiotherapy/linaceng/linacfaq/faq.html The most important new item is the library of this Linac Engineer Mailing List. (You can find it at the bottom of the table of contents.) Regards, Jan Kok Linac engineer Dept. of Radiotherapy University Medical Center Utrecht the Netherlands 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 14:36:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17vzmY-0000zf-00; Mon, 30 Sep 2002 14:36:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1C5891112F4; Mon, 30 Sep 2002 14:08:56 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA02710 for linac-eng-list; Mon, 30 Sep 2002 07:13:29 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02706 for ; Mon, 30 Sep 2002 07:13:27 -0500 (CDT) Received: by igate-int.hbocvan.com; id IAA23190; Mon, 30 Sep 2002 08:13:26 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma023092; Mon, 30 Sep 02 08:13:20 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 08:11:00 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 08:10:58 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 08:10:58 -0400 Sender: owner-linac-eng@plato.aristotle.net Gentlemen, I am having a constant problem with secondary feedback B side, on my 120 MMLC. So far I have swapped all boards between the A side and B side and keep coming up with the sec. feedback interlocks. Also have checked the voltages on the Sec. feedback card and they are within specs. Problem is it happens mainly in the parked position. Have also changed out the softpot assemblies on the tube side and iso side. These secondary interlocks do not stay with one particular leaf. One instant it can be 2B18, and on another it can be 2B56 or 57. Any suggestions. 2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL counts: raw = 390, calc. sec = -784, current pri = -36 mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 15:30:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w0dL-0001pf-00; Mon, 30 Sep 2002 15:30:47 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 106621112F1 for ; Mon, 30 Sep 2002 15:03:31 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN4782BLXC8XDF0V@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Sep 2002 15:17:33 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA02536 for linac-eng-list; Mon, 30 Sep 2002 06:56:40 -0500 (CDT) Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA02532 for ; Mon, 30 Sep 2002 06:56:38 -0500 (CDT) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id 71C041112F1 for ; Mon, 30 Sep 2002 13:35:17 +0200 (METDST) Received: from (kanon.radth.ruu.nl) [131.211.145.47] (mail) by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17vzFv-0000fN-00; Mon, 30 Sep 2002 14:02:31 +0200 Received: from kok by kanon.radth.ruu.nl with local (Exim 3.35 #1 (Debian)) id 17vzFu-0002PZ-00 for ; Mon, 30 Sep 2002 14:02:30 +0200 Date: Mon, 30 Sep 2002 14:02:30 +0200 From: Jan Kok Subject: new version linac FAQ list Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Sep 2002 14:02:30 +0200 From: Jan Kok Subject: new version linac FAQ list Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Dear colleagues, The 13th version of the Internet page: Frequently Asked Questions: Elekta SL25 series Linear~Accelerators and accessories. In now available on: http://www.isi.uu.nl/radiotherapy/linaceng/linacfaq/faq.html The most important new item is the library of this Linac Engineer Mailing List. (You can find it at the bottom of the table of contents.) Regards, Jan Kok Linac engineer Dept. of Radiotherapy University Medical Center Utrecht the Netherlands 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 15:33:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w0fi-0001s4-00; Mon, 30 Sep 2002 15:33:14 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0000D1112F1 for ; Mon, 30 Sep 2002 15:05:58 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN47B4NIGQ8XDF0V@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Sep 2002 15:20:02 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA02710 for linac-eng-list; Mon, 30 Sep 2002 07:13:29 -0500 (CDT) Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02706 for ; Mon, 30 Sep 2002 07:13:27 -0500 (CDT) Received: by igate-int.hbocvan.com; id IAA23190; Mon, 30 Sep 2002 08:13:26 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma023092; Mon, 30 Sep 2002 08:13:20 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 08:11:00 -0400 Date: Mon, 30 Sep 2002 08:10:58 -0400 From: "Eason, Guy" Subject: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Sep 2002 08:10:58 -0400 From: "Eason, Guy" Subject: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Gentlemen, I am having a constant problem with secondary feedback B side, on my 120 MMLC. So far I have swapped all boards between the A side and B side and keep coming up with the sec. feedback interlocks. Also have checked the voltages on the Sec. feedback card and they are within specs. Problem is it happens mainly in the parked position. Have also changed out the softpot assemblies on the tube side and iso side. These secondary interlocks do not stay with one particular leaf. One instant it can be 2B18, and on another it can be 2B56 or 57. Any suggestions. 2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL counts: raw = 390, calc. sec = -784, current pri = -36 mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 16:05:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w1B9-0002Fq-00; Mon, 30 Sep 2002 16:05:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4A3CB1112F1; Mon, 30 Sep 2002 15:38:23 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA05028 for linac-eng-list; Mon, 30 Sep 2002 08:41:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc.on.ca ([207.35.220.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05024 for ; Mon, 30 Sep 2002 08:41:48 -0500 (CDT) Received: by KRCCMAIL with Internet Mail Service (5.5.2656.59) id ; Mon, 30 Sep 2002 09:44:42 -0400 Message-ID: From: "Feuerstake, Tom" To: "'linac-eng@plato.aristotle.net'" Subject: Re: Ion Chambers Date: Mon, 30 Sep 2002 09:44:42 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C26887.87894870" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Feuerstake, Tom" To: "'linac-eng@plato.aristotle.net'" Subject: Re: Ion Chambers Date: Mon, 30 Sep 2002 09:44:42 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C26887.87894870 Content-Type: text/plain; charset="iso-8859-1" The Latency which you refer to is also called the "collection efficiency" of an ion chamber. It implies that it takes a certain amount of time for the ions to be collected after a radiation pulse. If another beam pulse were to occur before the ions were collected, then there could be a non-linearity in the ion chamber signal wrt dose rate. For example if the PRF were to be high enough it could cause this. One factor that influences this is the chamber high-voltage. The higher the voltage, the better the collection efficiency, and it is not a problem with the voltage up around the 300-500 volt range as it is on these machines. Not a Physicist, not even a wanna-be... Tom Feuerstake KRCC Canada "These views are only my personal opinion and do not reflect those of my institution, do not hold my institution liable in any way etc etc. All standard legal disclaimers apply" :) -----Original Message----- From: Mike.West@egnhst.org.uk [mailto:Mike.West@egnhst.org.uk] Sent: Wednesday, September 18, 2002 8:50 AM To: linac-eng@plato.aristotle.net ; srjordan@uabmc.edu Subject: Re: 2100CD sn 1007 Not necesarily - if the offset is negative, the integrators ramp down and give no counts. Still leaves an imbalance between DS1 and DS2 as the offset will 'subtract' from the signal. I thought there was a 'latency' in the ion chambers following a pulse of radiation whilst the ionisation dissipates - this leads to a small non-linearity with dose rate - any physicists out there? Mike ------_=_NextPart_001_01C26887.87894870 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: Ion Chambers

    The = Latency which you refer to is also called the "collection = efficiency" = of an ion chamber. It implies that it takes a certain amount of time = for the ions to be collected after a radiation pulse. If another beam = pulse were to occur before the ions were collected, then there could be = a non-linearity in the ion chamber signal wrt dose rate. For example if = the PRF were to be high enough it could cause this. One factor that = influences this is the chamber high-voltage. The higher the voltage, = the better the collection efficiency, and it is not a problem with the = voltage up around the 300-500 volt range as it is on these = machines.

    Not a = Physicist, not even a wanna-be...

    Tom = Feuerstake

    KRCC

    Canada

    "These views are only my personal opinion and do not = reflect those of my institution, do not hold my institution liable in = any way etc etc. All standard legal disclaimers apply"       :)


    -----Original Message-----

    From:   Mike.West@egnhst.org.uk [mailto:Mike.West@egnhst.org.uk]

    Sent:   Wednesday, September 18, 2002 8:50 = AM

    To:     linac-eng@plato.aristotle.net; srjordan@uabmc.edu

    Subject:        Re: = 2100CD sn 1007

    Not = necesarily - if the offset is negative, the integrators ramp down = and

    give no = counts. Still leaves an imbalance between DS1 and DS2 as the = offset

    will 'subtract' = from the signal.

    I = thought there was a 'latency' = in the ion chambers following a pulse of

    radiation whilst the ionisation dissipates - this leads = to a small

    non-linearity with dose rate - any physicists out = there?

    Mike =

    ------_=_NextPart_001_01C26887.87894870-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 16:05:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w1BD-0002Fu-00; Mon, 30 Sep 2002 16:05:47 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D23301112F2; Mon, 30 Sep 2002 15:38:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA04618 for linac-eng-list; Mon, 30 Sep 2002 08:34:42 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA04614 for ; Mon, 30 Sep 2002 08:34:40 -0500 (CDT) Received: by igate-int.hbocvan.com; id JAA06568; Mon, 30 Sep 2002 09:34:34 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma006495; Mon, 30 Sep 02 09:34:30 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 09:32:15 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 09:32:09 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 09:32:09 -0400 Sender: owner-linac-eng@plato.aristotle.net Yes the secondary files have been deleted each time a board was changed. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 -----Original Message----- From: Massimo Giovannetti [mailto:massimog@cancerboard.ab.ca] Sent: Monday, September 30, 2002 9:26 AM To: Eason, Guy Subject: Re: Secondary feedback errors. Varian MMLC Have you tried removing the secondary feedback files? Whenever you change a board or even a motor you should remove these files. It's done through the MLC hyperterminal window. Hit enter to get to the prompt and type: "ffs:secInit2A.txt" Hit enter and this should return a value of zero. Do it again for the B side: "ffs:secInit2B.txt" Again this should return a zero value. Then re-initialize the mlc. When it goes into secondary calibration you will see that leaves will run in and out a few more times than usual. This is because it's re-creating the files you removed. I hope this helps. -- Massimo Giovannetti, C. Tech Tom Baker Cancer Centre Calgary, AB, Canada Tel: (403) 670-1791 Fax: (403) 670-2327 massimog@cancerboard.ab.ca "Eason, Guy" wrote: > Gentlemen, > > I am having a constant problem with secondary feedback B side, on my 120 > MMLC. So far I have swapped all boards between the A side and B side and > keep coming up with the sec. feedback interlocks. Also have checked the > voltages on the Sec. feedback card and they are within specs. Problem is it > happens mainly in the parked position. Have also changed out the softpot > assemblies on the tube side and iso side. These secondary interlocks do not > stay with one particular leaf. One instant it can be 2B18, and on another > it can be 2B56 or 57. Any suggestions. > > 2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL > counts: raw = 390, calc. sec = -784, current pri = -36 > mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 > > Guy Eason > Linear Engineer > Radiation Oncology > Phoebe Putney Memorial Hospital > 800 490-0684 > (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 16:15:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w1Kz-0002Oi-00; Mon, 30 Sep 2002 16:15:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C63051112F4; Mon, 30 Sep 2002 15:48:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA05276 for linac-eng-list; Mon, 30 Sep 2002 08:53:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f186.law8.hotmail.com [216.33.241.186]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05272 for ; Mon, 30 Sep 2002 08:53:16 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 30 Sep 2002 06:52:45 -0700 Received: from 207.67.109.70 by lw8fd.law8.hotmail.msn.com with HTTP; Mon, 30 Sep 2002 13:52:45 GMT X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: geason@ppmh.org, linac-eng@plato.aristotle.net Subject: Re: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 08:52:45 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 30 Sep 2002 13:52:45.0937 (UTC) FILETIME=[A7C56E10:01C26888] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: geason@ppmh.org, linac-eng@plato.aristotle.net Subject: Re: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 08:52:45 -0500 X-OriginalArrivalTime: 30 Sep 2002 13:52:45.0937 (UTC) FILETIME=[A7C56E10:01C26888] Sender: owner-linac-eng@plato.aristotle.net Have you replaced the secondary feedback or as it used to be called smart board? The other possibly is the Motor interconnect board this should be a rarity though. Did you use rm "ffs:secInit2B.txt". The most common problem is the secondary feedback board. >From: "Eason, Guy" >To: "Linac-Engineering (E-mail)" >Subject: Secondary feedback errors. Varian MMLC >Date: Mon, 30 Sep 2002 08:10:58 -0400 > >Gentlemen, > >I am having a constant problem with secondary feedback B side, on my 120 >MMLC. So far I have swapped all boards between the A side and B side and >keep coming up with the sec. feedback interlocks. Also have checked the >voltages on the Sec. feedback card and they are within specs. Problem is it >happens mainly in the parked position. Have also changed out the softpot >assemblies on the tube side and iso side. These secondary interlocks do >not >stay with one particular leaf. One instant it can be 2B18, and on another >it can be 2B56 or 57. Any suggestions. > > >2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL > counts: raw = 390, calc. sec = -784, current pri = -36 > mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 > > >Guy Eason >Linear Engineer >Radiation Oncology >Phoebe Putney Memorial Hospital >800 490-0684 >(229) 312-2280 ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 414-443-6430 _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 16:21:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w1QE-0002SG-00; Mon, 30 Sep 2002 16:21:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3BFBA1112F1; Mon, 30 Sep 2002 15:54:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA05399 for linac-eng-list; Mon, 30 Sep 2002 08:56:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05395 for ; Mon, 30 Sep 2002 08:56:29 -0500 (CDT) Received: by igate-int.hbocvan.com; id JAA01838; Mon, 30 Sep 2002 09:56:28 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma001657; Mon, 30 Sep 02 09:56:24 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 09:54:07 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 09:53:56 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: RE: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 09:53:56 -0400 Sender: owner-linac-eng@plato.aristotle.net Yes the secondary feedback was changed to the A side and the A side to the B side but the problems still stay with the B side. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 -----Original Message----- From: ROD WILLIAMS [mailto:roddmod@hotmail.com] Sent: Monday, September 30, 2002 9:53 AM To: geason@ppmh.org; linac-eng@plato.aristotle.net Subject: Re: Secondary feedback errors. Varian MMLC Have you replaced the secondary feedback or as it used to be called smart board? The other possibly is the Motor interconnect board this should be a rarity though. Did you use rm "ffs:secInit2B.txt". The most common problem is the secondary feedback board. >From: "Eason, Guy" >To: "Linac-Engineering (E-mail)" >Subject: Secondary feedback errors. Varian MMLC >Date: Mon, 30 Sep 2002 08:10:58 -0400 > >Gentlemen, > >I am having a constant problem with secondary feedback B side, on my 120 >MMLC. So far I have swapped all boards between the A side and B side and >keep coming up with the sec. feedback interlocks. Also have checked the >voltages on the Sec. feedback card and they are within specs. Problem is it >happens mainly in the parked position. Have also changed out the softpot >assemblies on the tube side and iso side. These secondary interlocks do >not >stay with one particular leaf. One instant it can be 2B18, and on another >it can be 2B56 or 57. Any suggestions. > > >2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL > counts: raw = 390, calc. sec = -784, current pri = -36 > mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 > > >Guy Eason >Linear Engineer >Radiation Oncology >Phoebe Putney Memorial Hospital >800 490-0684 >(229) 312-2280 ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 414-443-6430 _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 16:57:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w1zL-0002lT-00; Mon, 30 Sep 2002 16:57:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E7A221112F1; Mon, 30 Sep 2002 16:30:16 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA07087 for linac-eng-list; Mon, 30 Sep 2002 09:35:17 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA07081 for ; Mon, 30 Sep 2002 09:35:15 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H390N1H39U85R@email.med.yale.edu> for linac-eng@plato.aristotle.net; Mon, 30 Sep 2002 10:34:56 -0400 (EDT) Date: Mon, 30 Sep 2002 10:31:02 -0400 From: "Peter E. Vitali" Subject: Re: Secondary feedback errors. Varian MMLC To: "Eason, Guy" Cc: "Linac-Engineering (E-mail)" Message-id: <3D986003.BDA0A183@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 30 Sep 2002 10:31:02 -0400 From: "Peter E. Vitali" Subject: Re: Secondary feedback errors. Varian MMLC To: "Eason, Guy" Cc: "Linac-Engineering (E-mail)" X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Guy: Try swapping the MotCom boards in the Controller. We had secondary feedback problems with the B side and it turned out to be the B side MotCom Board. When we swapped the MotCom Bds the problem followed to the A side. We have a problem which may be like yours but we have not been able to determine what jaw is causing it. We intermittently but frequently get secondary feed back B side going crazy but do not get an interlock unless there is a Watch dog time out while it is happening. We have been able to verify that it happens when the 120 MLC is parked and the jaws are opening. We can see it when we review the hyperterminal messages when we are treating, but we cannot get it to happen when we are testing it. We do not know if it has to be in VARiS Treatment but we do not see it happen in MLC Workstation. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 17:07:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w28s-0002ry-00; Mon, 30 Sep 2002 17:07:26 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9FB421112F1 for ; Mon, 30 Sep 2002 16:40:08 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN4ALUGKU88XDMC9@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Sep 2002 16:54:11 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA04199 for linac-eng-list; Mon, 30 Sep 2002 08:16:39 -0500 (CDT) Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA04195 for ; Mon, 30 Sep 2002 08:16:38 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H390ORAS67O87@email.med.yale.edu> for linac-eng@plato.aristotle.net; Mon, 30 Sep 2002 09:16:36 -0400 (EDT) Date: Mon, 30 Sep 2002 09:12:20 -0400 From: "Peter E. Vitali" Subject: Re: Turbo Vacuum Pump Station Sender: owner-linac-eng@plato.aristotle.net To: "Falcinelli, Marc A" Cc: 'Linac Engineers List' Message-id: <3D984DA7.FC428AFB@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit Precedence: bulk X-Accept-Language: en References: <7AF61AA0D5DBD511B2990090274E7316796979@whses02.wellmont.org> X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Sep 2002 09:12:20 -0400 From: "Peter E. Vitali" Subject: Re: Turbo Vacuum Pump Station Sender: owner-linac-eng@plato.aristotle.net To: "Falcinelli, Marc A" Cc: 'Linac Engineers List' X-Accept-Language: en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Mark: We contacted Varian Vacuum Technologies, 121 Hartwell Ave., Lexington, Ma 02421 USA, 1 800 882-7426, and had them make up one for us. There are other Vacuum Companies around which might be able to supply what you are looking for. I would go on the internet, under Vacuum and see what is out there. I did get parts for a foreign vacuum system once from a company called VAC. They were based in Switzerland but had an office here in the United States. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 17:13:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w2Ev-0002vL-00; Mon, 30 Sep 2002 17:13:41 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id A70EF1112F1 for ; Mon, 30 Sep 2002 16:46:23 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN4ATK1QXW8XCR5L@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Sep 2002 17:00:24 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA04618 for linac-eng-list; Mon, 30 Sep 2002 08:34:42 -0500 (CDT) Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA04614 for ; Mon, 30 Sep 2002 08:34:40 -0500 (CDT) Received: by igate-int.hbocvan.com; id JAA06568; Mon, 30 Sep 2002 09:34:34 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma006495; Mon, 30 Sep 2002 09:34:30 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 09:32:15 -0400 Date: Mon, 30 Sep 2002 09:32:09 -0400 From: "Eason, Guy" Subject: RE: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Sep 2002 09:32:09 -0400 From: "Eason, Guy" Subject: RE: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Yes the secondary files have been deleted each time a board was changed. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 -----Original Message----- From: Massimo Giovannetti [mailto:massimog@cancerboard.ab.ca] Sent: Monday, September 30, 2002 9:26 AM To: Eason, Guy Subject: Re: Secondary feedback errors. Varian MMLC Have you tried removing the secondary feedback files? Whenever you change a board or even a motor you should remove these files. It's done through the MLC hyperterminal window. Hit enter to get to the prompt and type: "ffs:secInit2A.txt" Hit enter and this should return a value of zero. Do it again for the B side: "ffs:secInit2B.txt" Again this should return a zero value. Then re-initialize the mlc. When it goes into secondary calibration you will see that leaves will run in and out a few more times than usual. This is because it's re-creating the files you removed. I hope this helps. -- Massimo Giovannetti, C. Tech Tom Baker Cancer Centre Calgary, AB, Canada Tel: (403) 670-1791 Fax: (403) 670-2327 massimog@cancerboard.ab.ca "Eason, Guy" wrote: > Gentlemen, > > I am having a constant problem with secondary feedback B side, on my 120 > MMLC. So far I have swapped all boards between the A side and B side and > keep coming up with the sec. feedback interlocks. Also have checked the > voltages on the Sec. feedback card and they are within specs. Problem is it > happens mainly in the parked position. Have also changed out the softpot > assemblies on the tube side and iso side. These secondary interlocks do not > stay with one particular leaf. One instant it can be 2B18, and on another > it can be 2B56 or 57. Any suggestions. > > 2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL > counts: raw = 390, calc. sec = -784, current pri = -36 > mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 > > Guy Eason > Linear Engineer > Radiation Oncology > Phoebe Putney Memorial Hospital > 800 490-0684 > (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 17:13:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w2Ex-0002vO-00; Mon, 30 Sep 2002 17:13:43 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 997F71112F1; Mon, 30 Sep 2002 16:46:24 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA04199 for linac-eng-list; Mon, 30 Sep 2002 08:16:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA04195 for ; Mon, 30 Sep 2002 08:16:38 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H390ORAS67O87@email.med.yale.edu> for linac-eng@plato.aristotle.net; Mon, 30 Sep 2002 09:16:36 -0400 (EDT) Date: Mon, 30 Sep 2002 09:12:20 -0400 From: "Peter E. Vitali" Subject: Re: Turbo Vacuum Pump Station To: "Falcinelli, Marc A" Cc: "'Linac Engineers List'" Message-id: <3D984DA7.FC428AFB@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <7AF61AA0D5DBD511B2990090274E7316796979@whses02.wellmont.org> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 30 Sep 2002 09:12:20 -0400 From: "Peter E. Vitali" Subject: Re: Turbo Vacuum Pump Station To: "Falcinelli, Marc A" Cc: "'Linac Engineers List'" X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Mark: We contacted Varian Vacuum Technologies, 121 Hartwell Ave., Lexington, Ma 02421 USA, 1 800 882-7426, and had them make up one for us. There are other Vacuum Companies around which might be able to supply what you are looking for. I would go on the internet, under Vacuum and see what is out there. I did get parts for a foreign vacuum system once from a company called VAC. They were based in Switzerland but had an office here in the United States. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 17:29:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w2UR-00031p-00; Mon, 30 Sep 2002 17:29:43 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id E43E41112F1 for ; Mon, 30 Sep 2002 17:02:25 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN4BCITDKS8XC40U@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Sep 2002 17:15:41 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA05399 for linac-eng-list; Mon, 30 Sep 2002 08:56:31 -0500 (CDT) Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA05395 for ; Mon, 30 Sep 2002 08:56:29 -0500 (CDT) Received: by igate-int.hbocvan.com; id JAA01838; Mon, 30 Sep 2002 09:56:28 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma001657; Mon, 30 Sep 2002 09:56:24 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 09:54:07 -0400 Date: Mon, 30 Sep 2002 09:53:56 -0400 From: "Eason, Guy" Subject: RE: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Sep 2002 09:53:56 -0400 From: "Eason, Guy" Subject: RE: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Yes the secondary feedback was changed to the A side and the A side to the B side but the problems still stay with the B side. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 -----Original Message----- From: ROD WILLIAMS [mailto:roddmod@hotmail.com] Sent: Monday, September 30, 2002 9:53 AM To: geason@ppmh.org; linac-eng@plato.aristotle.net Subject: Re: Secondary feedback errors. Varian MMLC Have you replaced the secondary feedback or as it used to be called smart board? The other possibly is the Motor interconnect board this should be a rarity though. Did you use rm "ffs:secInit2B.txt". The most common problem is the secondary feedback board. >From: "Eason, Guy" >To: "Linac-Engineering (E-mail)" >Subject: Secondary feedback errors. Varian MMLC >Date: Mon, 30 Sep 2002 08:10:58 -0400 > >Gentlemen, > >I am having a constant problem with secondary feedback B side, on my 120 >MMLC. So far I have swapped all boards between the A side and B side and >keep coming up with the sec. feedback interlocks. Also have checked the >voltages on the Sec. feedback card and they are within specs. Problem is it >happens mainly in the parked position. Have also changed out the softpot >assemblies on the tube side and iso side. These secondary interlocks do >not >stay with one particular leaf. One instant it can be 2B18, and on another >it can be 2B56 or 57. Any suggestions. > > >2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL > counts: raw = 390, calc. sec = -784, current pri = -36 > mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 > > >Guy Eason >Linear Engineer >Radiation Oncology >Phoebe Putney Memorial Hospital >800 490-0684 >(229) 312-2280 ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 414-443-6430 _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 18:13:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w3Ag-00039I-00; Mon, 30 Sep 2002 18:13:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 426E61112F1; Mon, 30 Sep 2002 17:45:59 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA09488 for linac-eng-list; Mon, 30 Sep 2002 10:51:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA09484 for ; Mon, 30 Sep 2002 10:51:29 -0500 (CDT) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id KAA26100; Mon, 30 Sep 2002 10:47:45 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C44.00567DE7 ; Mon, 30 Sep 2002 10:44:43 -0500 X-Lotus-FromDomain: MDACC To: clbartee@hsc.vcu.edu Cc: linac-eng@plato.aristotle.net Message-ID: <86256C44.00567C3B.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 30 Sep 2002 10:51:20 -0500 Subject: Re: Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: clbartee@hsc.vcu.edu Cc: linac-eng@plato.aristotle.net Date: Mon, 30 Sep 2002 10:51:20 -0500 Subject: Re: Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net That will be some time shortly after those of us who might be authoring that information can get the alligator depth to a reasonable level. Its a bit of a struggle at this point. If you have specific questions, I will do my best to answer them. Tim W clbartee@hsc.vcu.edu on 09/26/2002 08:23:15 AM To: linac-eng@plato.aristotle.net cc: (bcc: Timothy J. Waldron/MDACC) Subject: Does anybody know if or when we should be receiving more information from the linear accelerator group? Chris Bartee 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 18:27:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w3OR-0003AE-00; Mon, 30 Sep 2002 18:27:35 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 00BF41112F1; Mon, 30 Sep 2002 18:00:15 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA09842 for linac-eng-list; Mon, 30 Sep 2002 11:04:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.63]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09838; Mon, 30 Sep 2002 11:04:07 -0500 (CDT) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 12:03:22 -0400 Message-ID: From: "Rozenblat, Alex" To: "'Jan Kok'" , linac-eng@plato.aristotle.net Cc: "'linac'" Subject: RE: new version linac FAQ list + Dosimetry temp. on Siemens linac s Date: Mon, 30 Sep 2002 12:03:17 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'Jan Kok'" , linac-eng@plato.aristotle.net Cc: "'linac'" Subject: RE: new version linac FAQ list + Dosimetry temp. on Siemens linac s Date: Mon, 30 Sep 2002 12:03:17 -0400 Sender: owner-linac-eng@plato.aristotle.net Thank you very much, Jan for your consistent nonsatisfaction about what you have achieved already. The work you did to put together lots of helpful hints is amazing and undoubtfully deserves big applause. I am wondering why nobody so far put together similar site for Siemens linacs. If someone asks me this same question - I have got a ready answer - I am busy (we have 12 linacs already in our Centre and getting one more Primus very soon on top of all other stuff)- looks like lame excuse but it's true (If seriously, I am too dumb/old to learn HTML). I know we have (I am very proud to say "WE") very smart and eager guys on the list to implement this - no doubt, global - task. So, what's the problem? E? Just don't tell me all of you are very busy :-)). Andrew Frolov - where are you, buddy? On a learning note: I found very interesting behaviour of Siemens linacs when I am doing temperature calibration of Dosimetry channels. I need your opinion or observations on this one. To calibrate temp. sensors I put Gantry at 180, take Gantry cover off and request Electron beam and when Electron chamber is "exposed" I put inside head a thermocouple probe. I prefer to touch by probe a flange of the chamber because in my opinion that gives me more accurate and stable readout. First question: Should I measure temperature of air around or of the flange of the chamber? From physics point of view. Temperatures are different - I checked. Now, according to my measurement I adjust corresponding pots observing Temp. compensation page in Service (sorry, for such detailed description). Satisfied, I put Gantry cover back and ... what's the ...! I can see that readback on Temp. compensation page begins to change very fast until it reaches absolutely different point. I take the cover off - Temperature (readback) changes back. By the way, I found a similar correlation between Dosimetry temp. readback and Gantry position as well, not so obviously expressed though. My humble understanding: there is a Dosimetry fan, which blows air into Dosimetry card cage; depending on the cover being on or off the air flow changes direction that causes in its turn some electronics and may be even sensors themselves to cool/heat down/up. Second question: is it so or something else is involved and I am missing it? It's obvious to me that to get proper calibration of the sensors I should do it when linac is put together (the cover)but then, tell me please, how can I reach for pots? Enigma. The last - and most significant - question that could eliminate all the previous ones: How critical is to calibrate them sensors accurately if I know that by adjusting Dose Gain 1 or DRCV I can achieve any output of linac I want including correcting/masking any inaccuracy I introduced by wrong Temp. sensors calibration? Different topic: I have to apologise for not thanking back all the guys who sent me advice about sharp "whip-crack kind of sound" we experienced on one of our Mevatrons (magnetron driven). We had done lots of stuff but main, I guess, success we got when we changed black HV cable from pulse trans (in dog house) to magnetron even though we did not find any obvious signs of damage on it. "Breathing" problem is still under investigation. It's like there is no way to stop me when I reach for keyboard of my computer! Sincerely yours, Alex Rozenblat, TSRCC, Toronto -----Original Message----- From: Jan Kok [mailto:kok@radth.med.uu.nl] Sent: 30 September 2002 08:03 To: linac-eng@plato.aristotle.net Subject: new version linac FAQ list Dear colleagues, The 13th version of the Internet page: Frequently Asked Questions: Elekta SL25 series Linear~Accelerators and accessories. In now available on: http://www.isi.uu.nl/radiotherapy/linaceng/linacfaq/faq.html The most important new item is the library of this Linac Engineer Mailing List. (You can find it at the bottom of the table of contents.) Regards, Jan Kok Linac engineer Dept. of Radiotherapy University Medical Center Utrecht the Netherlands 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 19:29:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w4M6-0003HI-00; Mon, 30 Sep 2002 19:29:14 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 57EC41112F1 for ; Mon, 30 Sep 2002 19:01:54 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN4FJNWWYA8XDMC9@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Sep 2002 19:15:58 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA09250 for linac-eng-list; Mon, 30 Sep 2002 10:40:47 -0500 (CDT) Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA09246 for ; Mon, 30 Sep 2002 10:40:45 -0500 (CDT) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id g8UFeFmv012403; Mon, 30 Sep 2002 10:40:15 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id g8UFeETt012400; Mon, 30 Sep 2002 10:40:14 -0500 (CDT) Received: through eSafe SMTP Relay 1031310708; Mon Sep 30 10:40:13 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 10:40:09 -0500 Date: Mon, 30 Sep 2002 10:40:04 -0500 From: "Williams, Rod" Subject: RE: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "'Eason, Guy'" , "Linac-Engineering (E-mail)" Message-id: <7A3389A8D723D511B2260008C7B2BF390D5F89@wmhmail.phci.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: multipart/alternative; boundary="----_=_NextPart_001_01C26897.A57369F0" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Sep 2002 10:40:04 -0500 From: "Williams, Rod" Subject: RE: Secondary feedback errors. Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: "'Eason, Guy'" , "Linac-Engineering (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C26897.A57369F0 Content-Type: text/plain You can also check your CRC errors using diagStatDump 2 they should be 0 if your Motcomm is OK. If your PWM currents are OK you might be looking at the Motor interconnect. Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: Eason, Guy [SMTP:geason@ppmh.org] > Sent: Monday, September 30, 2002 8:54 AM > To: Linac-Engineering (E-mail) > Subject: RE: Secondary feedback errors. Varian MMLC > > Yes the secondary feedback was changed to the A side and the A side to the > B > side but the problems still stay with the B side. > > Guy Eason > Linear Engineer > Radiation Oncology > Phoebe Putney Memorial Hospital > 800 490-0684 > (229) 312-2280 > > > -----Original Message----- > From: ROD WILLIAMS [mailto:roddmod@hotmail.com] > Sent: Monday, September 30, 2002 9:53 AM > To: geason@ppmh.org; linac-eng@plato.aristotle.net > Subject: Re: Secondary feedback errors. Varian MMLC > > > Have you replaced the secondary feedback or as it used to be called smart > board? The other possibly is the Motor interconnect board this should be a > > rarity though. Did you use rm "ffs:secInit2B.txt". The most common problem > > is the secondary feedback board. > > > >From: "Eason, Guy" > >To: "Linac-Engineering (E-mail)" > >Subject: Secondary feedback errors. Varian MMLC > >Date: Mon, 30 Sep 2002 08:10:58 -0400 > > > >Gentlemen, > > > >I am having a constant problem with secondary feedback B side, on my 120 > >MMLC. So far I have swapped all boards between the A side and B side and > >keep coming up with the sec. feedback interlocks. Also have checked the > >voltages on the Sec. feedback card and they are within specs. Problem is > it > >happens mainly in the parked position. Have also changed out the softpot > >assemblies on the tube side and iso side. These secondary interlocks do > >not > >stay with one particular leaf. One instant it can be 2B18, and on > another > >it can be 2B56 or 57. Any suggestions. > > > > > >2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL > > counts: raw = 390, calc. sec = -784, current pri = -36 > > mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 > > > > > >Guy Eason > >Linear Engineer > >Radiation Oncology > >Phoebe Putney Memorial Hospital > >800 490-0684 > >(229) 312-2280 > > > > > ROD WILLIAMS > > ENCORE ENGINEERING SERVICES > 7906 W. DIXON ST > MILWAUKEE WI 53214 > 414-443-6430 > > > _________________________________________________________________ > Chat with friends online, try MSN Messenger: http://messenger.msn.com ------_=_NextPart_001_01C26897.A57369F0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Secondary feedback errors. Varian MMLC

    You can also check you= r CRC errors using diagStatDump 2   they should be 0 if your Mo= tcomm is OK. If your PWM currents are OK you might be looking at the Moto= r interconnect.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



      -----Original Message-----
      From:   Eason, Guy [SMTP:geason@ppmh.org]
      Sent:   Monday, September 30, 2002 8:54 AM
      To:     Linac-Engineering (E-mail)
      Subject:    &nbs= p;   RE: Secondary fee= dback errors. Varian MMLC

      Yes the secondary feedback was changed t= o the A side and the A side to the B
      side but the problems still stay with t= he B side.

      Guy Eason
      Linear Engineer
      Radiation Oncology
      Phoebe Putney Memorial Hospital
      800 490-0684
      (229) 312-2280


      -----Original Message-----
      From: ROD WILLIAMS [mailto:roddmod@hotmail.com]
      Sent: Monday, September 30, 2002 9:53 A= M
      To: geason@ppmh.org; linac-eng@plato.ar= istotle.net
      Subject: Re: Secondary feedback errors.= Varian MMLC


      Have you replaced the secondary feedback= or as it used to be called smart
      board? The other possibly is the Motor = interconnect board this should be a
      rarity though. Did you use rm "ffs= :secInit2B.txt". The most common problem
      is the secondary feedback board.


      >From: "Eason, Guy" <gea= son@ppmh.org>
      >To: "Linac-Engineering (E-mail= )" <linac-eng@plato.aristotle.net>
      >Subject: Secondary feedback errors.= Varian MMLC
      >Date: Mon, 30 Sep 2002 08:10:58 -04= 00
      >
      >Gentlemen,
      >
      >I am having a constant problem with= secondary feedback B side, on my 120
      >MMLC.  So far I have swapped a= ll boards between the A side and B side and
      >keep coming up with the sec. feedba= ck interlocks.  Also have checked the
      >voltages on the Sec. feedback card = and they are within specs. Problem is it
      >happens mainly in the parked positi= on.  Have also changed out the softpot
      >assemblies on the tube side and iso= side.  These secondary interlocks do
      >not
      >stay with one particular leaf. = ; One instant it can be 2B18, and on another
      >it can be 2B56 or 57.  Any sug= gestions.
      >
      >
      >2002/09/30 08:08:23.195 [mlcMon2]: = 2B18 SEC_IL
      >    counts:  ra= w =3D   390, calc. sec =3D   -784, current pri =3D&nb= sp;   -36
      >    mm. rel. crg.:&n= bsp; sec =3D    1.46 pri =3D    0.00, dif =3D= -1.46
      >
      >
      >Guy Eason
      >Linear Engineer
      >Radiation Oncology
      >Phoebe Putney Memorial Hospital
      >800 490-0684
      >(229) 312-2280




      ROD WILLIAMS

      ENCORE ENGINEERING SERVICES
      7906 W. DIXON ST
      MILWAUKEE WI 53214
      414-443-6430


      ________________________________________= _________________________
      Chat with friends online, try MSN Messe= nger: http://messe= nger.msn.com

    ------_=_NextPart_001_01C26897.A57369F0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 19:31:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w4OH-0003HU-00; Mon, 30 Sep 2002 19:31:29 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B3EA11112F1; Mon, 30 Sep 2002 19:04:08 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA11991 for linac-eng-list; Mon, 30 Sep 2002 12:09:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server106.phsa.ca (mail.phsa.ca [209.139.228.217]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA11987 for ; Mon, 30 Sep 2002 12:09:57 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254] RDNS failed) by server106.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Mon, 30 Sep 2002 10:11:30 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 10:02:18 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA00C1F60BC@SERVER20> From: Glen Owen To: "'mackinnongreg@cbdha.nshealth.ca'" , LinacEng Subject: RE: Ximatron Touch Detection Assy Date: Mon, 30 Sep 2002 10:10:39 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C268A4.4D18A060" X-OriginalArrivalTime: 30 Sep 2002 17:11:30.0671 (UTC) FILETIME=[6B776FF0:01C268A4] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Glen Owen To: "'mackinnongreg@cbdha.nshealth.ca'" , LinacEng Subject: RE: Ximatron Touch Detection Assy Date: Mon, 30 Sep 2002 10:10:39 -0700 X-OriginalArrivalTime: 30 Sep 2002 17:11:30.0671 (UTC) FILETIME=[6B776FF0:01C268A4] Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C268A4.4D18A060 Content-Type: text/plain; charset="iso-8859-1" Hi Greg, Have you measured the resistance of the touch guard assembly with it removed from the Ximatron? The following is from my experience with the touchguard. With no pressure on the touchguard you should measure approximately: - 400 ohms between pins 1 to 4 - 400 ohms between pins 2 to 3 - greater than 10M ohms between pins 1 to 2 - greater than 10M ohms between pins 3 to 4 This will give no collision indication. When pressure is applied to the touchguard you should measure approximately: - 400 ohms between pins 1 to 4 - 400 ohms between pins 2 to 3 - 1K ohms between pins 1 to 2 - 1K ohms between pins 3 to 4 This will give a collision indication. I have found that in the no collision mode(no pressure on the touchguard) that the resistance between pins 1 to 2 or between pins 3 to 4 to be in the 100K to 1M ohm range, due to minor pressure points between the foam rubber and the pressure sensor strips. If this occurs an intermittent collision indication will occur. Try loosening all of the screws holding the rubber cover to the touchguard and moving the rubber cover around slightly to minimize any pressure points inside the touchguard assembly. Hope this helps. Glen Owen Vancouver Island Cancer Centre Victoria, BC, Canada -----Original Message----- From: Greg MacKinnon [mailto:mackinnongreg@cbdha.nshealth.ca] Sent: Friday, September 27, 2002 7:27 AM To: LinacEng Subject: Ximatron Touch Detection Assy Hi Group The touch detection assemble on my Ximatron which was replaced less than a year ago is giving intermitting collision faults with no collision present. Able to clear fault by massaging foam, but fault would appear back later in the day. Is anyone else having similar problem with this assemble or is this a case of a unit that just failed prematurely. The old unit was replaced about a year ago due to the same problem but was on the Ximatron from new (3years). All comments will be appreciated. Thanks in advance. __________________________________________ Greg MacKinnon Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George St Sydney, NS B1P 1P3 tel: (902)567-8076 fax: (902)567-8075 email: mackinnongreg@cbdha.nshealth.ca ------_=_NextPart_001_01C268A4.4D18A060 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Ximatron Touch Detection Assy

    Hi Greg,

    Have you measured the resistance of the touch guard = assembly with it removed from the Ximatron?

    The following is from my experience with the = touchguard.

    With no pressure on the touchguard you should measure = approximately:
    - 400 ohms between pins 1 to 4
    - 400 ohms between pins 2 to 3
    - greater than 10M ohms between pins 1 to 2
    - greater than 10M ohms between pins 3 to 4
    This will give no collision indication.

    When pressure is applied to the touchguard you should = measure approximately:
    - 400 ohms between pins 1 to 4
    - 400 ohms between pins 2 to 3
    - 1K ohms between pins 1 to 2
    - 1K ohms between pins 3 to 4
    This will give a collision indication.

    I have found that in the no collision mode(no = pressure on the touchguard) that the resistance between pins 1 to 2 or = between pins 3 to 4 to be in the 100K to 1M ohm range, due to minor = pressure points between the foam rubber and the pressure sensor strips. = If this occurs an intermittent collision indication will occur. Try = loosening all of the screws holding the rubber cover to the touchguard = and moving the rubber cover around slightly to minimize any pressure = points inside the touchguard assembly.

    Hope this helps.

    Glen Owen
    Vancouver Island Cancer Centre
    Victoria, BC, Canada


    -----Original Message-----
    From: Greg MacKinnon [mailto:mackinnongreg@cbd= ha.nshealth.ca]
    Sent: Friday, September 27, 2002 7:27 AM
    To: LinacEng
    Subject: Ximatron Touch Detection Assy


    Hi Group

    The touch detection assemble on my Ximatron which was = replaced less than a
    year ago is giving intermitting collision faults = with no collision present.
    Able to clear fault by massaging foam, but fault = would appear back later in
    the day. Is anyone else having similar problem with = this assemble or is this
    a case of a unit that just failed prematurely. The = old unit was replaced
    about a year ago due to the same problem but was on = the Ximatron from new
    (3years).

    All comments will be appreciated.

    Thanks in advance.

    __________________________________________
    Greg MacKinnon
    Linear Accelerator Service Technologist
    Cape Breton Cancer Centre
    1482 George St
    Sydney, NS B1P 1P3
    tel: (902)567-8076
    fax: (902)567-8075
    email: mackinnongreg@cbdha.nshealth.ca

    ------_=_NextPart_001_01C268A4.4D18A060-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 19:47:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w4e4-0003J1-00; Mon, 30 Sep 2002 19:47:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4A4011112F1; Mon, 30 Sep 2002 19:20:27 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA12355 for linac-eng-list; Mon, 30 Sep 2002 12:27:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA12351 for ; Mon, 30 Sep 2002 12:27:53 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Mon, 30 Sep 2002 11:27:47 -0600 Received: (from spc160 [172.24.56.160]) by neried.scf.sk.ca (NAVGW 2.5.2.11) with SMTP id M2002093011315011699 for ; Mon, 30 Sep 2002 11:31:50 -0600 From: "Brian Martin" To: "Linac Engineer group (E-mail)" Subject: Varian MMLC Motors Date: Mon, 30 Sep 2002 11:27:53 -0600 Message-ID: <000701c268a6$b557b880$a03818ac@scadomain.local> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Brian Martin" To: "Linac Engineer group (E-mail)" Subject: Varian MMLC Motors Date: Mon, 30 Sep 2002 11:27:53 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net I am trying to find a replacement for the Varian MMLC full and half leaf motors. Could anyone tell me who they are using as a second source for these motors. Thanks in advance, Brian Martin Medical Physics/Radiation Therapy Department Saskatoon Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 21:04:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w5px-0003RE-00; Mon, 30 Sep 2002 21:04:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 955291112F1; Mon, 30 Sep 2002 20:36:46 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA14108 for linac-eng-list; Mon, 30 Sep 2002 13:42:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server106.phsa.ca (mail.phsa.ca [209.139.228.217]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA14104 for ; Mon, 30 Sep 2002 13:42:01 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254] RDNS failed) by server106.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Mon, 30 Sep 2002 11:43:36 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 11:34:25 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA007A4F668@SERVER20> From: "Patrick Wong (VICC)" To: "'Eason, Guy'" , "Linac-Engineering (E-mail)" Subject: RE: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 11:42:49 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C268B1.2CE37740" X-OriginalArrivalTime: 30 Sep 2002 18:43:36.0843 (UTC) FILETIME=[49525DB0:01C268B1] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" To: "'Eason, Guy'" , "Linac-Engineering (E-mail)" Subject: RE: Secondary feedback errors. Varian MMLC Date: Mon, 30 Sep 2002 11:42:49 -0700 X-OriginalArrivalTime: 30 Sep 2002 18:43:36.0843 (UTC) FILETIME=[49525DB0:01C268B1] Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C268B1.2CE37740 Content-Type: text/plain; charset="iso-8859-1" Guy, > I am having a constant problem with secondary feedback B > side, on my 120 > happens mainly in the parked position. Please try to change the B side carriage motor, as the carriage motor move to the park position, all kind of things happening at that moment, the hyptermainal couldn't log in all the error at the same time. some time it give you wrong message and side track to looking for other problem as well. Making sure that you don't see any leaf have to try twice to pass the calibration during the process of initialization. If you see one try to change that leaf motor as well. As the digital encoder in the leaf motor causing wrong positional counting during initialization. Hope this help. Patrick Wong Radiotherapy Service Tech. Vancouver Island Cancer Center Victoria, B.C. Canada > -----Original Message----- > From: Eason, Guy [mailto:geason@ppmh.org] > Sent: Monday, September 30, 2002 5:11 AM > To: Linac-Engineering (E-mail) > Subject: Secondary feedback errors. Varian MMLC > > > Gentlemen, > > I am having a constant problem with secondary feedback B > side, on my 120 > MMLC. So far I have swapped all boards between the A side > and B side and > keep coming up with the sec. feedback interlocks. Also have > checked the > voltages on the Sec. feedback card and they are within specs. > Problem is it > happens mainly in the parked position. Have also changed out > the softpot > assemblies on the tube side and iso side. These secondary > interlocks do not > stay with one particular leaf. One instant it can be 2B18, > and on another > it can be 2B56 or 57. Any suggestions. > > > 2002/09/30 08:08:23.195 [mlcMon2]: 2B18 SEC_IL > counts: raw = 390, calc. sec = -784, current pri = -36 > mm. rel. crg.: sec = 1.46 pri = 0.00, dif = -1.46 > > > Guy Eason > Linear Engineer > Radiation Oncology > Phoebe Putney Memorial Hospital > 800 490-0684 > (229) 312-2280 > ------_=_NextPart_001_01C268B1.2CE37740 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Secondary feedback errors. Varian MMLC

    Guy,
    > I am having a constant problem with secondary = feedback B
    > side, on my 120
    > happens mainly in the parked position.

    Please try to change the B side carriage motor, as = the carriage motor move to the park position, all kind of things = happening at that moment, the hyptermainal couldn't log in all the = error at the same time. some time it give you wrong message and side = track to looking for other problem as well.

    Making sure that you don't see any leaf have to try = twice to pass the calibration during the process of = initialization.
    If you see one try to change that leaf motor as = well. As the digital encoder in the leaf motor causing wrong positional = counting during initialization.

    Hope this help.

    Patrick Wong
    Radiotherapy Service Tech.
    Vancouver Island Cancer Center
    Victoria, B.C. Canada


    > -----Original Message-----
    > From: Eason, Guy [mailto:geason@ppmh.org]
    > Sent: Monday, September 30, 2002 5:11 AM
    > To: Linac-Engineering (E-mail)
    > Subject: Secondary feedback errors. Varian = MMLC
    >
    >
    > Gentlemen,
    >
    > I am having a constant problem with secondary = feedback B
    > side, on my 120
    > MMLC.  So far I have swapped all boards = between the A side
    > and B side and
    > keep coming up with the sec. feedback = interlocks.  Also have
    > checked the
    > voltages on the Sec. feedback card and they are = within specs.
    > Problem is it
    > happens mainly in the parked position.  = Have also changed out
    > the softpot
    > assemblies on the tube side and iso side.  = These secondary
    > interlocks do not
    > stay with one particular leaf.  One = instant it can be 2B18,
    > and on another
    > it can be 2B56 or 57.  Any suggestions. =
    >
    >
    > 2002/09/30 08:08:23.195 [mlcMon2]: 2B18 = SEC_IL
    >    counts:  raw = =3D   390, calc. sec =3D   -784, current pri = =3D    -36
    >    mm. rel. crg.:  sec = =3D    1.46 pri =3D    0.00, dif =3D = -1.46
    >
    >
    > Guy Eason
    > Linear Engineer
    > Radiation Oncology
    > Phoebe Putney Memorial Hospital
    > 800 490-0684
    > (229) 312-2280
    >

    ------_=_NextPart_001_01C268B1.2CE37740-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Sep 30 21:29:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w6EO-0003WJ-00; Mon, 30 Sep 2002 21:29:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B32EE1112F1; Mon, 30 Sep 2002 21:01:57 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA14567 for linac-eng-list; Mon, 30 Sep 2002 14:06:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA14562 for ; Mon, 30 Sep 2002 14:06:37 -0500 (CDT) Received: by igate-int.hbocvan.com; id PAA21010; Mon, 30 Sep 2002 15:06:36 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma020765; Mon, 30 Sep 02 15:06:28 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 15:04:07 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Secondary feedback continued. Varian MMLC Date: Mon, 30 Sep 2002 15:04:00 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Secondary feedback continued. Varian MMLC Date: Mon, 30 Sep 2002 15:04:00 -0400 Sender: owner-linac-eng@plato.aristotle.net Here's what all has been changed. So far I've changed the MotCom Boards, the secondary feedback boards, Motor driver boards, both softpot assemblies and the cable between the secondary feedback board to the motor driver boards. Still getting secondary feedback errors. Any other suggestions? Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 03:32:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wBtc-00042F-00; Tue, 01 Oct 2002 03:32:20 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E41F31112F1; Tue, 1 Oct 2002 03:04:49 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id UAA22610 for linac-eng-list; Mon, 30 Sep 2002 20:11:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d04.mx.aol.com (imo-d04.mx.aol.com [205.188.157.36]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA22606 for ; Mon, 30 Sep 2002 20:11:11 -0500 (CDT) From: EBlondJr61@aol.com Received: from EBlondJr61@aol.com by imo-d04.mx.aol.com (mail_out_v34.13.) id t.64.26255b55 (25098) for ; Mon, 30 Sep 2002 21:10:32 -0400 (EDT) Message-ID: <64.26255b55.2aca5008@aol.com> Date: Mon, 30 Sep 2002 21:10:32 EDT Subject: VIRUS To: Jose.Berrios@Huck.com MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_64.26255b55.2aca5008_boundary" X-Mailer: AOL 8.0 for Windows US sub 4011 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: EBlondJr61@aol.com Date: Mon, 30 Sep 2002 21:10:32 EDT Subject: VIRUS To: Jose.Berrios@Huck.com Sender: owner-linac-eng@plato.aristotle.net --part1_64.26255b55.2aca5008_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Computer Virus > > >All, > >I have just received a message from a friend who's address book had been >infected with a virus that was passed on to me - and everyone in my address >book. After following the instruction, I found the virus indeed was >residing in my C drive. I have followed her directions and deleted it, but >it has probably been passed on to everyone in my address book. I am sorry >for this, but please follow the easy instructions below and it should get >rid of the virus. > >The virus, called jdbgmgr.exe, is not detected by Norton or McAfee >Anti-virus systems. The virus sits quietly for 14 days before damaging the >system. It is sent automatically by messenger and by the Address Book, >whether or not you sent e-mails to your contacts. > >Here is how to check for the virus and how to get rid of it. SORRY > >YOU MUST DO THIS: > >1. Go to Start. Find or search option. 2. In the files/folder option, write >the name jdbgmgr.exe 3. Be sure you search your C drive and any other >devices that you may have 4. Click "find now" 5. The virus has a teddy bear >icon with the name jdbgmgr.exe - DO NOT OPEN IT!!!! 6. Go to edit. Choose >"Select All" to highlight the file without opening it. 7. Now go to File >and select Delete. It will then go to the recycle bin 8. Go to Recycle Bin >and delete it there as well > >IF YOU FIND THE VIRUS, YOU MUST CONTACT EVERYONE IN YOUR ADDRESS BOOK SO >THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS > >To do this, open a new e-mail message. Click the photo of the address book >next to "To." Click every name and add it to "BCC" Copy this message, paste >to e-mail, enter the subject and send. > >Please do this as soon as you receive this message! Again, I am extremely >SORRY! --part1_64.26255b55.2aca5008_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Computer Virus
    >
    >
    >All,
    >
    >I have just received a message from a friend who's address book had been
    >infected with a virus that was passed on to me - and everyone in my address
    >book. After following the instruction, I found the virus indeed was
    >residing in my C drive. I have followed her directions and deleted it, but
    >it has probably been passed on to everyone in my address book. I am sorry
    >for this, but please follow the easy instructions below and it should get
    >rid of the virus.
    >
    >The virus, called jdbgmgr.exe, is not detected by Norton or McAfee
    >Anti-virus systems. The virus sits quietly for 14 days before damaging the
    >system. It is sent automatically by messenger and by the Address Book,
    >whether or not you sent e-mails to your contacts.
    >
    >Here is how to check for the virus and how to get rid of it. SORRY
    >
    >YOU MUST DO THIS:
    >
    >1. Go to Start. Find or search option. 2. In the files/folder option, write
    >the name jdbgmgr.exe 3. Be sure you search your C drive and any other
    >devices that you may have 4. Click "find now" 5. The virus has a teddy bear
    >icon with the name jdbgmgr.exe - DO NOT OPEN IT!!!! 6. Go to edit. Choose
    >"Select All" to highlight the file without opening it. 7. Now go to File
    >and select Delete. It will then go to the recycle bin 8. Go to Recycle Bin
    >and delete it there as well
    >
    >IF YOU FIND THE VIRUS, YOU MUST CONTACT EVERYONE IN YOUR ADDRESS BOOK SO
    >THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS
    >
    >To do this, open a new e-mail message. Click the photo of the address book
    >next to "To." Click every name and add it to "BCC" Copy this message, paste
    >to e-mail, enter the subject and send.
    >
    >Please do this as soon as you receive this message! Again, I am extremely
    >SORRY!


     --part1_64.26255b55.2aca5008_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 05:11:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wDR9-0004Bz-00; Tue, 01 Oct 2002 05:11:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 749571112F1; Tue, 1 Oct 2002 04:43:31 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA24594 for linac-eng-list; Mon, 30 Sep 2002 21:49:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA24590 for ; Mon, 30 Sep 2002 21:49:47 -0500 (CDT) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id OAA14604 for ; Tue, 1 Oct 2002 14:46:39 +1200 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Tue, 1 Oct 2002 14:46:09 -0500 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Tue, 01 Oct 2002 14:48:36 +1200 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 01 Oct 2002 14:48:21 +1200 From: "Dave Pinchin" To: Subject: Re: VIRUS Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id VAA24591 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 01 Oct 2002 14:48:21 +1200 From: "Dave Pinchin" To: Subject: Re: VIRUS Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id VAA24591 Sender: owner-linac-eng@plato.aristotle.net I received the following message from the list ????? BUT..... This is a hoax NOT a virus. There is no need to delete the file. It is a microsoft windows file which does a JAVA function. Dave. >>> 1/10/02 13:10:32 >>> Subject: Computer Virus > > >All, > >I have just received a message from a friend who's address book had been >infected with a virus that was passed on to me - and everyone in my address >book. After following the instruction, I found the virus indeed was >residing in my C drive. I have followed her directions and deleted it, but >it has probably been passed on to everyone in my address book. I am sorry >for this, but please follow the easy instructions below and it should get >rid of the virus. > >The virus, called jdbgmgr.exe, is not detected by Norton or McAfee >Anti-virus systems. The virus sits quietly for 14 days before damaging the >system. It is sent automatically by messenger and by the Address Book, >whether or not you sent e-mails to your contacts. > >Here is how to check for the virus and how to get rid of it. SORRY > >YOU MUST DO THIS: > >1. Go to Start. Find or search option. 2. In the files/folder option, write >the name jdbgmgr.exe 3. Be sure you search your C drive and any other >devices that you may have 4. Click "find now" 5. The virus has a teddy bear >icon with the name jdbgmgr.exe - DO NOT OPEN IT!!!! 6. Go to edit. Choose >"Select All" to highlight the file without opening it. 7. Now go to File >and select Delete. It will then go to the recycle bin 8. Go to Recycle Bin >and delete it there as well > >IF YOU FIND THE VIRUS, YOU MUST CONTACT EVERYONE IN YOUR ADDRESS BOOK SO >THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS > >To do this, open a new e-mail message. Click the photo of the address book >next to "To." Click every name and add it to "BCC" Copy this message, paste >to e-mail, enter the subject and send. > >Please do this as soon as you receive this message! Again, I am extremely >SORRY! ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 13:27:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wLBF-0000gg-00; Tue, 01 Oct 2002 13:27:09 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7DE701112F2; Tue, 1 Oct 2002 12:59:24 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA00253 for linac-eng-list; Tue, 1 Oct 2002 05:54:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id FAA00249 for ; Tue, 1 Oct 2002 05:54:55 -0500 (CDT) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Tue, 01 Oct 2002 07:50:34 -0300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Tue, 01 Oct 2002 07:50:21 -0300 From: "Carl Murphy" To: Cc: Subject: Re: VIRUS Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA00250 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 01 Oct 2002 07:50:21 -0300 From: "Carl Murphy" To: Cc: Subject: Re: VIRUS Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA00250 Sender: owner-linac-eng@plato.aristotle.net This virus warning is a hoax. Please research these threats before sending them out to thousands of people. The fix that is suggested below will actually remove functionality of your computer by deleting the Java Debugging Manager. See this virus hoax information at: http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.hoax.html Regards, Carl Murphy >>> Monday, September 30, 2002 >>> Subject: Computer Virus > > >All, > >I have just received a message from a friend who's address book had been >infected with a virus that was passed on to me - and everyone in my address >book. After following the instruction, I found the virus indeed was >residing in my C drive. I have followed her directions and deleted it, but >it has probably been passed on to everyone in my address book. I am sorry >for this, but please follow the easy instructions below and it should get >rid of the virus. > >The virus, called jdbgmgr.exe, is not detected by Norton or McAfee >Anti-virus systems. The virus sits quietly for 14 days before damaging the >system. It is sent automatically by messenger and by the Address Book, >whether or not you sent e-mails to your contacts. > >Here is how to check for the virus and how to get rid of it. SORRY > >YOU MUST DO THIS: > >1. Go to Start. Find or search option. 2. In the files/folder option, write >the name jdbgmgr.exe 3. Be sure you search your C drive and any other >devices that you may have 4. Click "find now" 5. The virus has a teddy bear >icon with the name jdbgmgr.exe - DO NOT OPEN IT!!!! 6. Go to edit. Choose >"Select All" to highlight the file without opening it. 7. Now go to File >and select Delete. It will then go to the recycle bin 8. Go to Recycle Bin >and delete it there as well > >IF YOU FIND THE VIRUS, YOU MUST CONTACT EVERYONE IN YOUR ADDRESS BOOK SO >THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS > >To do this, open a new e-mail message. Click the photo of the address book >next to "To." Click every name and add it to "BCC" Copy this message, paste >to e-mail, enter the subject and send. > >Please do this as soon as you receive this message! Again, I am extremely >SORRY! _________________________________ Carl Murphy, C.E.T. Linear Accelerator Service Technologist Medical Physics Department Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax, Nova Scotia, Canada Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 14:11:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wLsS-00014p-00; Tue, 01 Oct 2002 14:11:48 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4AEB91112F1; Tue, 1 Oct 2002 13:44:06 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA00913 for linac-eng-list; Tue, 1 Oct 2002 06:42:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA00909 for ; Tue, 1 Oct 2002 06:42:00 -0500 (CDT) Received: by igate-int.hbocvan.com; id HAA05268; Tue, 1 Oct 2002 07:42:00 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma005244; Tue, 1 Oct 02 07:41:56 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Tue, 1 Oct 2002 07:39:40 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Thanks for the Help on Secondary Feeback errors. Date: Tue, 1 Oct 2002 07:39:32 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2693F.35E26200" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Thanks for the Help on Secondary Feeback errors. Date: Tue, 1 Oct 2002 07:39:32 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2693F.35E26200 Content-Type: text/plain; charset="iso-8859-1" At the present time we are still getting secondary feedback errors. Although after changing every component in the mmlc, the problem seems to have lessened considerably. I think I may have a cold solder joint/loose wire with in the ribbon cables. I will have to look at this more during the week end. I will post what I find. Thanks for all the help. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 ------_=_NextPart_001_01C2693F.35E26200 Content-Type: text/html; charset="iso-8859-1"
    At the present time we are still getting secondary feedback errors.  Although after changing every component in the mmlc, the problem seems to have lessened considerably.  I think I may have a cold solder joint/loose wire with in the ribbon cables.  I will have to look at this more during the week end.  I will post what I find. 
    Thanks for all the help.

    Guy Eason
    Linear Engineer
    Radiation Oncology
    Phoebe Putney Memorial Hospital
    800 490-0684
    (229) 312-2280

     
    ------_=_NextPart_001_01C2693F.35E26200-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 14:51:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wMUk-0001WP-00; Tue, 01 Oct 2002 14:51:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6B9001112F1; Tue, 1 Oct 2002 14:23:40 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA01587 for linac-eng-list; Tue, 1 Oct 2002 07:20:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA01583 for ; Tue, 1 Oct 2002 07:20:57 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H3A0NTDGY6U8Q@email.med.yale.edu> for linac-eng@plato.aristotle.net; Tue, 01 Oct 2002 08:18:30 -0400 (EDT) Date: Tue, 01 Oct 2002 08:14:08 -0400 From: "Peter E. Vitali" Subject: Re: Thanks for the Help on Secondary Feeback errors. To: "Eason, Guy" Cc: "Linac-Engineering (E-mail)" Message-id: <3D999189.E5D4224C@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 01 Oct 2002 08:14:08 -0400 From: "Peter E. Vitali" Subject: Re: Thanks for the Help on Secondary Feeback errors. To: "Eason, Guy" Cc: "Linac-Engineering (E-mail)" X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Guy: We have a new MMLC 120. We were having initial teething problems but in investigating the found by accident that not all the wires in the cables that go from the power distribution board to all the other boards have good connections. When moving one of the cables a wire pulled out of the connector to which it was crimped. I would do a pull test on every wire going to the B side. Before you do that make sure you can get the pin out. There is a special tool that comes with the MMLC call a pin extractor which looks like a tweezer. We tried using it but could not get it to work properly so we had to solder the wire to the pin in the connector. Not an easy project. Has anyone had to use this tool? Will the AMP pin remover tool work and if so how did you use it? Ours did not want to fit in the square hole. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 15:27:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wN3r-0001tu-00; Tue, 01 Oct 2002 15:27:39 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id ED1D41112F1 for ; Tue, 1 Oct 2002 14:59:57 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN5LCS9TIA8XGAZD@med.uu.nl> for kok@radth.med.uu.nl; Tue, 1 Oct 2002 15:13:01 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA00913 for linac-eng-list; Tue, 01 Oct 2002 06:42:02 -0500 (CDT) Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA00909 for ; Tue, 01 Oct 2002 06:42:00 -0500 (CDT) Received: by igate-int.hbocvan.com; id HAA05268; Tue, 01 Oct 2002 07:42:00 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma005244; Tue, 01 Oct 2002 07:41:56 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id ; Tue, 01 Oct 2002 07:39:40 -0400 Date: Tue, 01 Oct 2002 07:39:32 -0400 From: "Eason, Guy" Subject: Thanks for the Help on Secondary Feeback errors. Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: multipart/alternative; boundary="----_=_NextPart_001_01C2693F.35E26200" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 01 Oct 2002 07:39:32 -0400 From: "Eason, Guy" Subject: Thanks for the Help on Secondary Feeback errors. Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2693F.35E26200 Content-Type: text/plain; charset="iso-8859-1" At the present time we are still getting secondary feedback errors. Although after changing every component in the mmlc, the problem seems to have lessened considerably. I think I may have a cold solder joint/loose wire with in the ribbon cables. I will have to look at this more during the week end. I will post what I find. Thanks for all the help. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 ------_=_NextPart_001_01C2693F.35E26200 Content-Type: text/html; charset="iso-8859-1"
    At the present time we are still getting secondary feedback errors.  Although after changing every component in the mmlc, the problem seems to have lessened considerably.  I think I may have a cold solder joint/loose wire with in the ribbon cables.  I will have to look at this more during the week end.  I will post what I find. 
    Thanks for all the help.

    Guy Eason
    Linear Engineer
    Radiation Oncology
    Phoebe Putney Memorial Hospital
    800 490-0684
    (229) 312-2280

     
    ------_=_NextPart_001_01C2693F.35E26200-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 16:37:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wO91-0002St-00; Tue, 01 Oct 2002 16:37:03 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2A4BA1112F1; Tue, 1 Oct 2002 16:09:19 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA03141 for linac-eng-list; Tue, 1 Oct 2002 08:51:24 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA03137 for ; Tue, 1 Oct 2002 08:51:21 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g91DokW5010520; Tue, 1 Oct 2002 08:50:46 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g91Doj6a010515; Tue, 1 Oct 2002 08:50:45 -0500 (CDT) Received: through eSafe SMTP Relay 1031310708; Tue Oct 01 08:50:45 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Tue, 1 Oct 2002 08:50:45 -0500 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5F8C@wmhmail.phci.org> From: "Williams, Rod" To: "'Peter E. Vitali'" , "Eason, Guy" Cc: "Linac-Engineering (E-mail)" Subject: RE: Thanks for the Help on Secondary Feedback errors. Date: Tue, 1 Oct 2002 08:50:41 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C26951.881CC710" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'Peter E. Vitali'" , "Eason, Guy" Cc: "Linac-Engineering (E-mail)" Subject: RE: Thanks for the Help on Secondary Feedback errors. Date: Tue, 1 Oct 2002 08:50:41 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C26951.881CC710 Content-Type: text/plain Hi Guy The Extraction tool you have is the one to use, I have used it and it is not as easy to use as the round Amp type, as you have to push on the pin, release the locking tabs and then remove the pin. Molex also makes a Crimp tool it is in the Digi Key catalog, Part number WM9999-ND.This is for the universal tool they have three others for the exact wire sizes. Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: Peter E. Vitali [SMTP:peter.vitali@yale.edu] > Sent: Tuesday, October 01, 2002 7:14 AM > To: Eason, Guy > Cc: Linac-Engineering (E-mail) > Subject: Re: Thanks for the Help on Secondary Feeback errors. > > Guy: > > We have a new MMLC 120. We were having initial teething problems but in > investigating the found by accident that not all the wires in the cables > that go > from the power distribution board to all the other boards have good > connections. When moving one of the cables a wire pulled out of the > connector > to which it was crimped. I would do a pull test on every wire going to > the B > side. Before you do that make sure you can get the pin out. There is a > special tool that comes with the MMLC call a pin extractor which looks > like a > tweezer. We tried using it but could not get it to work properly so we > had to > solder the wire to the pin in the connector. Not an easy project. > > Has anyone had to use this tool? Will the AMP pin remover tool work and > if so > how did you use it? Ours did not want to fit in the square hole. > > Peter E. Vitali, CBET > Therapeutic Radiological Engineer > Yale New Haven Hospital > 20 York Street, HRT 22 > New Haven, CT. 06504 > Phone: (203) 688-2948 > FAX: (203) 688-3663 > E-mail: peter.vitali@yale.edu > > > As usual, everything I say may be plausibly denied at my employer's > convenience... > > ------_=_NextPart_001_01C26951.881CC710 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Thanks for the Help on Secondary Feedback errors.

    Hi Guy

    The Extraction tool yo= u have is the one to use, I have used it and it is not as easy to use as = the round Amp type, as you have to push on the pin,  release the loc= king tabs and then remove the pin. Molex also makes a Crimp tool it is in= the Digi Key catalog, Part number WM9999-ND.This is for the universal to= ol they have three others for the exact wire sizes.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



      -----Original Message-----
      From:   Peter E. Vitali [SMTP:peter.vitali@yale.edu]
      Sent:   Tuesday, October 01, 2002 7:14 AM
      To:     Eason, Guy
      Cc:     Linac-Engineering (E-mail)
      Subject:    &nbs= p;   Re: Thanks for th= e Help on Secondary Feeback errors.

      Guy:

      We have a new MMLC 120.   We w= ere having initial teething problems but in
      investigating the found by accident tha= t not all the wires in the cables that go
      from the power distribution board to al= l the other boards have good
      connections.  When moving one of t= he cables a wire pulled out of the connector
      to which it was crimped.  I would = do a pull test on every wire going to the B
      side.   Before you do that ma= ke sure you can get the pin out.  There is a
      special tool that comes with the MMLC c= all a pin extractor which looks like a
      tweezer.  We tried using it but co= uld not get it to work properly so we had to
      solder the wire to the pin in the conne= ctor.  Not an easy project.

      Has anyone had to use this tool? &n= bsp; Will the AMP pin remover tool work and if so
      how did you use it?  Ours did not = want to fit in the square hole.

      Peter E. Vitali, CBET
      Therapeutic Radiological Engineer
      Yale New Haven Hospital
      20 York Street,    HRT 2= 2
      New Haven, CT.  06504
      Phone:   (203) 688-2948
      FAX:     (203) 688-= 3663
      E-mail:    peter.vitali@= yale.edu


      As usual, everything I say may be plausi= bly denied at my employer's
      convenience...


    ------_=_NextPart_001_01C26951.881CC710-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 17:49:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wPGp-0002lP-00; Tue, 01 Oct 2002 17:49:11 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E3CDF1112F1; Tue, 1 Oct 2002 17:21:25 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA05753 for linac-eng-list; Tue, 1 Oct 2002 10:22:13 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcgif01.bhcpns.org ([199.190.155.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA05749 for ; Tue, 1 Oct 2002 10:22:11 -0500 (CDT) From: lsullivan@bhcpns.org Received: by bhcgif01.bhcpns.org; id LAA28479; Tue, 1 Oct 2002 11:14:39 -0400 (EDT) Received: from unknown(10.4.30.11) by bhcgif01.bhcpns.org via smap (V5.5) id xma028177; Tue, 1 Oct 02 11:14:02 -0400 Subject: Elekta Precise system To: linac-eng@plato.aristotle.net X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Tue, 1 Oct 2002 10:20:34 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 10/01/2002 10:20:34 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Elekta Precise system To: linac-eng@plato.aristotle.net Date: Tue, 1 Oct 2002 10:20:34 -0500 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.10 |March 22, 2002) at 10/01/2002 10:20:34 AM Sender: owner-linac-eng@plato.aristotle.net Good Day All Please if you can help out,, Our Hospital is looking to purchase a new accelerator we have Varian And have looked at the Elekta system and I have no previous experiences or data to compare with our current Varian If you can help by giving advice Pro and Con it will be greatly appreciated we need all the in put available ... I will be more than happy to contact you personally and talk about this subject if you do not wish to reply in e-mail form.... Thanks in advance Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 18:10:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wPbN-0002sV-00; Tue, 01 Oct 2002 18:10:25 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id D6FEF1112F1 for ; Tue, 1 Oct 2002 17:42:40 +0200 (METDST) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN5R31EGI68XGTQJ@med.uu.nl> for kok@radth.med.uu.nl; Tue, 1 Oct 2002 17:56:58 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA03141 for linac-eng-list; Tue, 01 Oct 2002 08:51:24 -0500 (CDT) Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA03137 for ; Tue, 01 Oct 2002 08:51:21 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id g91DokW5010520; Tue, 01 Oct 2002 08:50:46 -0500 (CDT) Received: from wmhconnect.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id g91Doj6a010515; Tue, 01 Oct 2002 08:50:45 -0500 (CDT) Received: through eSafe SMTP Relay 1031310708; Tue Oct 01 08:50:45 2002 Received: by wmhconnect.phci.org with Internet Mail Service (5.5.2653.19) id ; Tue, 01 Oct 2002 08:50:45 -0500 Date: Tue, 01 Oct 2002 08:50:41 -0500 From: "Williams, Rod" Subject: RE: Thanks for the Help on Secondary Feedback errors. Sender: owner-linac-eng@plato.aristotle.net To: "'Peter E. Vitali'" , "Eason, Guy" Cc: "Linac-Engineering (E-mail)" Message-id: <7A3389A8D723D511B2260008C7B2BF390D5F8C@wmhmail.phci.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: multipart/alternative; boundary="----_=_NextPart_001_01C26951.881CC710" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 01 Oct 2002 08:50:41 -0500 From: "Williams, Rod" Subject: RE: Thanks for the Help on Secondary Feedback errors. Sender: owner-linac-eng@plato.aristotle.net To: "'Peter E. Vitali'" , "Eason, Guy" Cc: "Linac-Engineering (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C26951.881CC710 Content-Type: text/plain Hi Guy The Extraction tool you have is the one to use, I have used it and it is not as easy to use as the round Amp type, as you have to push on the pin, release the locking tabs and then remove the pin. Molex also makes a Crimp tool it is in the Digi Key catalog, Part number WM9999-ND.This is for the universal tool they have three others for the exact wire sizes. Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: Peter E. Vitali [SMTP:peter.vitali@yale.edu] > Sent: Tuesday, October 01, 2002 7:14 AM > To: Eason, Guy > Cc: Linac-Engineering (E-mail) > Subject: Re: Thanks for the Help on Secondary Feeback errors. > > Guy: > > We have a new MMLC 120. We were having initial teething problems but in > investigating the found by accident that not all the wires in the cables > that go > from the power distribution board to all the other boards have good > connections. When moving one of the cables a wire pulled out of the > connector > to which it was crimped. I would do a pull test on every wire going to > the B > side. Before you do that make sure you can get the pin out. There is a > special tool that comes with the MMLC call a pin extractor which looks > like a > tweezer. We tried using it but could not get it to work properly so we > had to > solder the wire to the pin in the connector. Not an easy project. > > Has anyone had to use this tool? Will the AMP pin remover tool work and > if so > how did you use it? Ours did not want to fit in the square hole. > > Peter E. Vitali, CBET > Therapeutic Radiological Engineer > Yale New Haven Hospital > 20 York Street, HRT 22 > New Haven, CT. 06504 > Phone: (203) 688-2948 > FAX: (203) 688-3663 > E-mail: peter.vitali@yale.edu > > > As usual, everything I say may be plausibly denied at my employer's > convenience... > > ------_=_NextPart_001_01C26951.881CC710 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: Thanks for the Help on Secondary Feedback errors.

    Hi Guy

    The Extraction tool yo= u have is the one to use, I have used it and it is not as easy to use as = the round Amp type, as you have to push on the pin,  release the loc= king tabs and then remove the pin. Molex also makes a Crimp tool it is in= the Digi Key catalog, Part number WM9999-ND.This is for the universal to= ol they have three others for the exact wire sizes.

    Rod.Williams@phci.org
    WAUKESHA MEMORIAL<= I>
    RODDMOD@HOTMAIL.COM
    ENCORE ENGINEERING SERVICES
    7906 W.DIXON ST
    MILWAUKEE, WI 53214
    414-443-6430
    262-928-4734



      -----Original Message-----
      From:   Peter E. Vitali [SMTP:peter.vitali@yale.edu]
      Sent:   Tuesday, October 01, 2002 7:14 AM
      To:     Eason, Guy
      Cc:     Linac-Engineering (E-mail)
      Subject:    &nbs= p;   Re: Thanks for th= e Help on Secondary Feeback errors.

      Guy:

      We have a new MMLC 120.   We w= ere having initial teething problems but in
      investigating the found by accident tha= t not all the wires in the cables that go
      from the power distribution board to al= l the other boards have good
      connections.  When moving one of t= he cables a wire pulled out of the connector
      to which it was crimped.  I would = do a pull test on every wire going to the B
      side.   Before you do that ma= ke sure you can get the pin out.  There is a
      special tool that comes with the MMLC c= all a pin extractor which looks like a
      tweezer.  We tried using it but co= uld not get it to work properly so we had to
      solder the wire to the pin in the conne= ctor.  Not an easy project.

      Has anyone had to use this tool? &n= bsp; Will the AMP pin remover tool work and if so
      how did you use it?  Ours did not = want to fit in the square hole.

      Peter E. Vitali, CBET
      Therapeutic Radiological Engineer
      Yale New Haven Hospital
      20 York Street,    HRT 2= 2
      New Haven, CT.  06504
      Phone:   (203) 688-2948
      FAX:     (203) 688-= 3663
      E-mail:    peter.vitali@= yale.edu


      As usual, everything I say may be plausi= bly denied at my employer's
      convenience...


    ------_=_NextPart_001_01C26951.881CC710-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 01 18:46:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wQAk-0002vW-00; Tue, 01 Oct 2002 18:46:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2FA0B1112F1; Tue, 1 Oct 2002 18:19:11 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA07957 for linac-eng-list; Tue, 1 Oct 2002 11:23:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq04.netvigator.com (imsmq04.netvigator.com [218.102.48.40]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA07953 for ; Tue, 1 Oct 2002 11:22:53 -0500 (CDT) Received: (qmail 12906 invoked from network); 1 Oct 2002 16:22:37 -0000 Received: from pcd336246.netvigator.com (HELO kyeung) (203.218.126.246) by imsmq04.netvigator.com with SMTP; 1 Oct 2002 16:22:37 -0000 Message-ID: <007b01c26965$c7a3a840$cfaefea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varian 2300CD STPS interlock Date: Wed, 2 Oct 2002 00:15:25 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0077_01C269A8.CE8A7D80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varian 2300CD STPS interlock Date: Wed, 2 Oct 2002 00:15:25 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0077_01C269A8.CE8A7D80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Re: Varian 2300CD, Version 6.1 On the PWM board there is a signal 20VA, derived from 27VDC. Could = anyone advise the function of this signal? Thanks in advance. Kim Yeung ------=_NextPart_000_0077_01C269A8.CE8A7D80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
    Re: Varian 2300CD, Version = 6.1
     
    On the PWM board there is a signal = 20VA, derived=20 from 27VDC. Could anyone advise the function of this = signal?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0077_01C269A8.CE8A7D80-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 11:36:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wfvo-0007C2-00; Wed, 02 Oct 2002 11:36:36 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D64C71112F3; Wed, 2 Oct 2002 11:08:31 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA24833 for linac-eng-list; Wed, 2 Oct 2002 04:15:11 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from eigg.abel.net.uk (eigg.abel.net.uk [195.72.113.1]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id EAA24829 for ; Wed, 2 Oct 2002 04:15:08 -0500 (CDT) Received: (qmail 8929 invoked from network); 2 Oct 2002 09:14:26 -0000 Received: from unknown (HELO oemcomputer) (80.225.123.239) by 195.72.113.35 with SMTP; 2 Oct 2002 09:14:26 -0000 Message-ID: <002501c269f3$cd527da0$4469fea9@oemcomputer> From: "Radiotherapy Physics - RSH" To: Subject: Fw: SL75-5, Info required - up-date Date: Wed, 2 Oct 2002 10:12:14 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0022_01C269FC.2E4D7B20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapy Physics - RSH" To: Subject: Fw: SL75-5, Info required - up-date Date: Wed, 2 Oct 2002 10:12:14 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0022_01C269FC.2E4D7B20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello List To up-date and clarify what my colleague was after: We already have the Epson printer for the daily record, but it is our = HP1120C printer for the patient record sheets that we want to replace. It has taken a bit of a pounding for the last 3 years? We are having = trouble sourcing another one. Elekta, I believe, are trying to sort things out with HP for up-dating = the printer drivers. So, in the meantime, have you managed to source a HP1120C lately? If not, has anybody managed to use a different but available printer? Thanks in advance Regards John Macmillan Radiotherapy Physics Royal Shrewsbury Hospital UK ----- Original Message -----=20 From: Radiotherapy Physics - RSH=20 To: =20 Sent: Wednesday, September 11, 2002 9:15 AM Subject: SL775, Info required hello, i am hoping users of the SL755 can give some information, with reagrds = to the type of Printer that they use on the VS3 computer systems? for managing/printing patient information?. Many thanks in advance. Ron ------=_NextPart_000_0022_01C269FC.2E4D7B20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hello List
     
    To up-date and clarify what my colleague was=20 after:
     
    We already have the Epson printer for the daily = record, but it=20 is our HP1120C printer for the patient record sheets that we want to=20 replace.
    It has taken a bit of a pounding for the last 3 = years? We are=20 having trouble sourcing another one.
    Elekta, I believe, are trying to sort things out = with HP for=20 up-dating the printer drivers.
     
    So, in the meantime, have you managed to source a = HP1120C=20 lately?
    If not, has anybody managed to use a different but = available=20 printer?
     
    Thanks in advance
     
    Regards
     
    John Macmillan
    Radiotherapy Physics
    Royal = Shrewsbury=20 Hospital
    UK
    ----- Original Message -----=20
    From: Radiotherapy=20 Physics - RSH
    To:    
    Sent: Wednesday, September 11, 2002 9:15 AM
    Subject: SL775, Info required

    hello,
     
    i am hoping users of the SL755 can give some = information, with=20 reagrds to the type of Printer that they use on the VS3 computer=20 systems?
    for managing/printing patient = information?.
     
    Many thanks in advance.
     
    Ron
    ------=_NextPart_000_0022_01C269FC.2E4D7B20-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From JMADDOX@LROC.HARVARD.EDU Wed Oct 02 13:55:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wi6g-0000eq-00; Wed, 02 Oct 2002 13:55:58 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id B61CA1112F4 for ; Wed, 2 Oct 2002 13:27:51 +0200 (METDST) Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN6WGDJFKQ8XF445@med.uu.nl> for kok@radth.med.uu.nl; Wed, 2 Oct 2002 13:41:16 +0200 Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id ; Wed, 02 Oct 2002 07:48:40 -0400 Content-return: allowed Date: Wed, 02 Oct 2002 07:48:39 -0400 From: "Maddox, Buford J" Subject: RE: new version linac FAQ list + Dosimetry temp. on Siemens linac s To: "'Rozenblat, Alex'" , 'Jan Kok' , linac-eng@plato.aristotle.net Cc: 'linac' Message-id: <36298D09ED1AD311B4DC0008C7F4D4E10A30F042@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-type: text/plain; charset="iso-8859-1" *** EOOH *** Content-return: allowed Date: Wed, 02 Oct 2002 07:48:39 -0400 From: "Maddox, Buford J" Subject: RE: new version linac FAQ list + Dosimetry temp. on Siemens linac s To: "'Rozenblat, Alex'" , 'Jan Kok' , linac-eng@plato.aristotle.net Cc: 'linac' It is the air temperature inside the transmission (measures number of photons/particles, not energy) ion chamber that matters. If the air is hotter, it is less dense, so it aborbs less energy from the beam, and fewer electrons are liberated. These electrons are the signal used for control. Note that if the chamber is sealed, volume is constant, no density change, no effect on collected charge. In fact, changing temp (heat gun, carefully) is the way to check if your sealed chamber is still sealed. I believe our physicist just checks the temp in the head without removing covers when he adjusts the softpots. As long as the circuitry is linear from room temp to about head temp when warmed up, the absolute reading is not critical. But if it is not reading near the correct value, the ciruit could saturate when trying to correct. Big non-linearity! Old Siemens heads used to change 10 deg C from off to warmed up, and the effect is about 1/300 per deg C, so if the sealed xray chamber wasn't sealed, machine dose cal changed 3-4 % am to noon. Need to check how much Primus head temp changes. This is another reason why we do am checks. My thanks also to Jan! Interesting stuff, and an archive too! Jerry -----Original Message----- From: Rozenblat, Alex [mailto:Alex.Rozenblat@tsrcc.on.ca] Sent: Monday, September 30, 2002 12:03 PM To: 'Jan Kok'; linac-eng@plato.aristotle.net Cc: 'linac' Subject: RE: new version linac FAQ list + Dosimetry temp. on Siemens linac s Thank you very much, Jan for your consistent nonsatisfaction about what you have achieved already. The work you did to put together lots of helpful hints is amazing and undoubtfully deserves big applause. I am wondering why nobody so far put together similar site for Siemens linacs. If someone asks me this same question - I have got a ready answer - I am busy (we have 12 linacs already in our Centre and getting one more Primus very soon on top of all other stuff)- looks like lame excuse but it's true (If seriously, I am too dumb/old to learn HTML). I know we have (I am very proud to say "WE") very smart and eager guys on the list to implement this - no doubt, global - task. So, what's the problem? E? Just don't tell me all of you are very busy :-)). Andrew Frolov - where are you, buddy? On a learning note: I found very interesting behaviour of Siemens linacs when I am doing temperature calibration of Dosimetry channels. I need your opinion or observations on this one. To calibrate temp. sensors I put Gantry at 180, take Gantry cover off and request Electron beam and when Electron chamber is "exposed" I put inside head a thermocouple probe. I prefer to touch by probe a flange of the chamber because in my opinion that gives me more accurate and stable readout. First question: Should I measure temperature of air around or of the flange of the chamber? From physics point of view. Temperatures are different - I checked. Now, according to my measurement I adjust corresponding pots observing Temp. compensation page in Service (sorry, for such detailed description). Satisfied, I put Gantry cover back and ... what's the ...! I can see that readback on Temp. compensation page begins to change very fast until it reaches absolutely different point. I take the cover off - Temperature (readback) changes back. By the way, I found a similar correlation between Dosimetry temp. readback and Gantry position as well, not so obviously expressed though. My humble understanding: there is a Dosimetry fan, which blows air into Dosimetry card cage; depending on the cover being on or off the air flow changes direction that causes in its turn some electronics and may be even sensors themselves to cool/heat down/up. Second question: is it so or something else is involved and I am missing it? It's obvious to me that to get proper calibration of the sensors I should do it when linac is put together (the cover)but then, tell me please, how can I reach for pots? Enigma. The last - and most significant - question that could eliminate all the previous ones: How critical is to calibrate them sensors accurately if I know that by adjusting Dose Gain 1 or DRCV I can achieve any output of linac I want including correcting/masking any inaccuracy I introduced by wrong Temp. sensors calibration? Different topic: I have to apologise for not thanking back all the guys who sent me advice about sharp "whip-crack kind of sound" we experienced on one of our Mevatrons (magnetron driven). We had done lots of stuff but main, I guess, success we got when we changed black HV cable from pulse trans (in dog house) to magnetron even though we did not find any obvious signs of damage on it. "Breathing" problem is still under investigation. It's like there is no way to stop me when I reach for keyboard of my computer! Sincerely yours, Alex Rozenblat, TSRCC, Toronto -----Original Message----- From: Jan Kok [mailto:kok@radth.med.uu.nl] Sent: 30 September 2002 08:03 To: linac-eng@plato.aristotle.net Subject: new version linac FAQ list Dear colleagues, The 13th version of the Internet page: Frequently Asked Questions: Elekta SL25 series Linear~Accelerators and accessories. In now available on: http://www.isi.uu.nl/radiotherapy/linaceng/linacfaq/faq.html The most important new item is the library of this Linac Engineer Mailing List. (You can find it at the bottom of the table of contents.) Regards, Jan Kok Linac engineer Dept. of Radiotherapy University Medical Center Utrecht the Netherlands 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 15:26:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wjWK-0001lu-00; Wed, 02 Oct 2002 15:26:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F33E01112F3; Wed, 2 Oct 2002 14:58:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA27383 for linac-eng-list; Wed, 2 Oct 2002 08:02:24 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nt-tudor00.cancercare.co.za (mail.cancercare.co.za [196.2.159.43]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA27379 for ; Wed, 2 Oct 2002 08:02:19 -0500 (CDT) Received: by NT-TUDOR00 with Internet Mail Service (5.5.2650.21) id ; Wed, 2 Oct 2002 15:01:03 +0200 Message-ID: From: Will Pazda To: "Linac-Eng (E-mail)" Subject: Siemens Mevatron K-Class Date: Thu, 3 Oct 2002 03:02:46 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Will Pazda To: "Linac-Eng (E-mail)" Subject: Siemens Mevatron K-Class Date: Thu, 3 Oct 2002 03:02:46 +0200 Sender: owner-linac-eng@plato.aristotle.net Hi, We have a problem in a K-Class modulator that has resulted in the Charging Diode Stack and the Complete 3 Phase HV Bridge being taken out (42 diodes in all !). We believe that the Charging Diode was the initial failure in going short, with the result 'ringing' going back into the DC Stage blowing the bridge. One thing worries us in that we have had charging diodes fail in the past, but so far it has never resulted in the bridge going at the same time. We have done a visual check, and all the measurements we can without HV, and everything looks O.K.. Has anyone experienced a similar failure ?, was it just the charging diode as the original fault or something more sinister ?. It would be useful to know before I hit that 'Rad-On' button and perhaps take out another 42 diodes !. Thanks & Regards, Will Pazda Cape Town 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 16:49:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wkol-0002zG-00; Wed, 02 Oct 2002 16:49:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D58E51112F3; Wed, 2 Oct 2002 16:21:28 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA29148 for linac-eng-list; Wed, 2 Oct 2002 09:21:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA29144 for ; Wed, 2 Oct 2002 09:21:30 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Wed, 2 Oct 2002 10:21:00 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F047@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Segovia, Luis E.'" , Carl Murphy , EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net Subject: RE: VIRUS Date: Wed, 2 Oct 2002 10:20:49 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Segovia, Luis E.'" , Carl Murphy , EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net Subject: RE: VIRUS Date: Wed, 2 Oct 2002 10:20:49 -0400 Sender: owner-linac-eng@plato.aristotle.net I haven't recieved any viruses from the list, just the recent hoax. -----Original Message----- From: Segovia, Luis E. [mailto:LSegovia@tmh.tmc.edu] Sent: Tuesday, October 01, 2002 11:26 AM To: Carl Murphy; EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net Subject: RE: VIRUS I figured. On another virus theme, I have been getting a virus attachment on some messages on a daily basis. Norton has caught it every time and quarentined it. I figured that this list was probably a source. Have any of you experienced the same lately? Luis Segovia > -----Original Message----- > From: Carl Murphy [SMTP:Carl.Murphy@cdha.nshealth.ca] > Sent: Tuesday, October 01, 2002 5:50 AM > To: EBlondJr61@aol.com > Cc: linac-eng@plato.aristotle.net > Subject: Re: VIRUS > > This virus warning is a hoax. Please research these threats before > sending them out to thousands of people. The fix that is suggested below > will actually remove functionality of your computer by deleting the Java > Debugging Manager. > > See this virus hoax information at: > > http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.h > oax.html > > > Regards, > > Carl Murphy > >>> Monday, September 30, 2002 >>> > Subject: Computer Virus > > > > > >All, > > > >I have just received a message from a friend who's address book had been > >infected with a virus that was passed on to me - and everyone in my > address > >book. After following the instruction, I found the virus indeed was > >residing in my C drive. I have followed her directions and deleted it, > but > >it has probably been passed on to everyone in my address book. I am sorry > > >for this, but please follow the easy instructions below and it should get > > >rid of the virus. > > > >The virus, called jdbgmgr.exe, is not detected by Norton or McAfee > >Anti-virus systems. The virus sits quietly for 14 days before damaging > the > >system. It is sent automatically by messenger and by the Address Book, > >whether or not you sent e-mails to your contacts. > > > >Here is how to check for the virus and how to get rid of it. SORRY > > > >YOU MUST DO THIS: > > > >1. Go to Start. Find or search option. 2. In the files/folder option, > write > >the name jdbgmgr.exe 3. Be sure you search your C drive and any other > >devices that you may have 4. Click "find now" 5. The virus has a teddy > bear > >icon with the name jdbgmgr.exe - DO NOT OPEN IT!!!! 6. Go to edit. Choose > > >"Select All" to highlight the file without opening it. 7. Now go to File > >and select Delete. It will then go to the recycle bin 8. Go to Recycle > Bin > >and delete it there as well > > > >IF YOU FIND THE VIRUS, YOU MUST CONTACT EVERYONE IN YOUR ADDRESS BOOK SO > >THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS > > > >To do this, open a new e-mail message. Click the photo of the address > book > >next to "To." Click every name and add it to "BCC" Copy this message, > paste > >to e-mail, enter the subject and send. > > > >Please do this as soon as you receive this message! Again, I am extremely > > >SORRY! > > > > _________________________________ > Carl Murphy, C.E.T. > Linear Accelerator Service Technologist > Medical Physics Department > Nova Scotia Cancer Centre > QEII Health Sciences Centre > Halifax, Nova Scotia, Canada > Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 16:52:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wkrP-00030M-00; Wed, 02 Oct 2002 16:52:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A79FF1112F3; Wed, 2 Oct 2002 16:24:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA29393 for linac-eng-list; Wed, 2 Oct 2002 09:30:59 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tmh.tmc.edu (ironmail.tmh.tmc.edu [128.249.169.250]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA29387 for ; Wed, 2 Oct 2002 09:30:57 -0500 (CDT) Received: from ([10.120.62.235]) by ironmail.tmh.tmc.edu with ESMTP ; Wed, 02 Oct 2002 09:28:36 -0500 (CDT) Received: by exch5.tmh.tmc.edu with Internet Mail Service (5.5.2653.19) id ; Wed, 2 Oct 2002 09:28:36 -0500 Message-ID: From: "Segovia, Luis E." To: Will Pazda , "Linac-Eng (E-mail)" Subject: RE: Siemens Mevatron K-Class Date: Wed, 2 Oct 2002 09:28:35 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Segovia, Luis E." To: Will Pazda , "Linac-Eng (E-mail)" Subject: RE: Siemens Mevatron K-Class Date: Wed, 2 Oct 2002 09:28:35 -0500 Sender: owner-linac-eng@plato.aristotle.net Will, You wrote charging diode but I believe that you are referring to the charging choke. I have had this guy ark and take out lots of diodes (just like you describe). It is always a good idea to start the klystron step by step when you have these type of problems. Also, if one of your diodes in a stack is defective, you should replace all diodes in that stack. Here is what I would do: * Replaced all defective diodes (and the choke) * Test the HV power supply without a load (should get 22KVdc approximately) * Test your tetrode control box without HV. Verify proper voltages, and go to your test point and make sure that when you "very quickly pass a flash light by the octocoppler (light pipe input) you see a change. (If you have a Klystron procedure reefer to it). * Next, install the tetrode tube and make sure that your static voltages are still OK. * With everything hooked up, disconnect the thyratron trigger; set the PFN to zero; use a HV probe to measure the voltage at the PFN capacitors (The Thyratron is a good point); with the HV power supply breaker off, turn rad on. As you increase PFN, the PFN voltage should gradually increase. For maximum PFN you should read about 21KV. This tell you that your are able to regulate charge. * Now we are ready to pulse the Klystron. Do it at low rep rate and low PFN. Start increasing them as you go. If you need more details, there is a procedure that Siemens training had. It gives a more detailed explanation. After you get things working, make sure that your Kly I is within specifications. If the pulse is too wide, you will loose HV components periodically. I hope this helps. Good luck. Luis Segovia > -----Original Message----- > From: Will Pazda [SMTP:will.pazda@rxl.co.za] > Sent: Wednesday, October 02, 2002 8:03 PM > To: Linac-Eng (E-mail) > Subject: Siemens Mevatron K-Class > > Hi, > > We have a problem in a K-Class modulator that has resulted in the Charging > Diode Stack and the Complete 3 Phase HV Bridge being taken out (42 diodes > in > all !). We believe that the Charging Diode was the initial failure in > going > short, with the result 'ringing' going back into the DC Stage blowing the > bridge. One thing worries us in that we have had charging diodes fail in > the > past, but so far it has never resulted in the bridge going at the same > time. > > We have done a visual check, and all the measurements we can without HV, > and > everything looks O.K.. Has anyone experienced a similar failure ?, was it > just the charging diode as the original fault or something more sinister > ?. > It would be useful to know before I hit that 'Rad-On' button and perhaps > take out another 42 diodes !. > > Thanks & Regards, > > Will Pazda > Cape Town 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 17:17:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wlFw-0003R8-00; Wed, 02 Oct 2002 17:17:44 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9D9021112F4 for ; Wed, 2 Oct 2002 16:49:34 +0200 (METDST) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN7346D1OM8XF6VP@med.uu.nl> for kok@radth.med.uu.nl; Wed, 2 Oct 2002 16:52:16 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA27383 for linac-eng-list; Wed, 02 Oct 2002 08:02:24 -0500 (CDT) Received: from nt-tudor00.cancercare.co.za (mail.cancercare.co.za [196.2.159.43]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA27379 for ; Wed, 02 Oct 2002 08:02:19 -0500 (CDT) Received: by NT-TUDOR00 with Internet Mail Service (5.5.2650.21) id ; Wed, 02 Oct 2002 15:01:03 +0200 Date: Thu, 03 Oct 2002 03:02:46 +0200 From: Will Pazda Subject: Siemens Mevatron K-Class Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Eng (E-mail)" Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 03 Oct 2002 03:02:46 +0200 From: Will Pazda Subject: Siemens Mevatron K-Class Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Eng (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hi, We have a problem in a K-Class modulator that has resulted in the Charging Diode Stack and the Complete 3 Phase HV Bridge being taken out (42 diodes in all !). We believe that the Charging Diode was the initial failure in going short, with the result 'ringing' going back into the DC Stage blowing the bridge. One thing worries us in that we have had charging diodes fail in the past, but so far it has never resulted in the bridge going at the same time. We have done a visual check, and all the measurements we can without HV, and everything looks O.K.. Has anyone experienced a similar failure ?, was it just the charging diode as the original fault or something more sinister ?. It would be useful to know before I hit that 'Rad-On' button and perhaps take out another 42 diodes !. Thanks & Regards, Will Pazda Cape Town 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 19:17:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wn7b-0003xt-00; Wed, 02 Oct 2002 19:17:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E9AC81112F3; Wed, 2 Oct 2002 18:49:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA00610 for linac-eng-list; Wed, 2 Oct 2002 11:52:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA00602 for ; Wed, 2 Oct 2002 11:52:18 -0500 (CDT) Received: from Unknown [192.191.191.250] by mail1.radiological.com - SuperScout Email Filter (4.0); Wednesday, 02 October 2002, 09:52:26 Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Wed, 02 Oct 2002 09:52:08 -0700 Message-ID: From: "Nelson Lacsina" To: , , Date: Wed, 02 Oct 2002 09:51:38 -0700 Subject: RE: Siemens Mevatron K-Class MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Mailer: Novell GroupWise Internet Agent 6.0 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA00603 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson Lacsina" To: , , Date: Wed, 02 Oct 2002 09:51:38 -0700 Subject: RE: Siemens Mevatron K-Class Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA00603 Sender: owner-linac-eng@plato.aristotle.net Hello everyone, I am having a bit of a problem and I am in need of some experience....Here is the situation: Machine: Varian 2100 C SN#710 Problem: UDRS interlock after verifying energy on all energies Description: Not angle/rotation dependant...After choosing energy and programming up, the UDRS interlock asserts itself...The Unit tells you to press Enter to clear interlock...Pressing enter allows you to beam on...Once beamed on: no output occurs and you get the UDRS fault once more...De-quing looks good...LDPWR2 looks good, Gun looks good....Signal timing looks good... Has anyone experienced this problem, and if so, what was your solution.. For those who have a good theory basis, where is the UDRS interlock originated, and if it is a combination of more than one signal, which are they, and what boards do they go through ? Thanks in advance, Nelson 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 20:09:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wnvr-0004Ao-00; Wed, 02 Oct 2002 20:09:11 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id E0BE11112F3 for ; Wed, 2 Oct 2002 19:40:57 +0200 (METDST) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN79IGDAGQ8XF3WP@med.uu.nl> for kok@radth.med.uu.nl; Wed, 2 Oct 2002 19:55:34 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA29393 for linac-eng-list; Wed, 02 Oct 2002 09:30:59 -0500 (CDT) Received: from tmh.tmc.edu (ironmail.tmh.tmc.edu [128.249.169.250]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA29387 for ; Wed, 02 Oct 2002 09:30:57 -0500 (CDT) Received: from ([10.120.62.235]) by ironmail.tmh.tmc.edu with ESMTP ; Wed, 02 Oct 2002 09:28:36 -0500 (CDT) Received: by exch5.tmh.tmc.edu with Internet Mail Service (5.5.2653.19) id ; Wed, 02 Oct 2002 09:28:36 -0500 Date: Wed, 02 Oct 2002 09:28:35 -0500 From: "Segovia, Luis E." Subject: RE: Siemens Mevatron K-Class Sender: owner-linac-eng@plato.aristotle.net To: Will Pazda , "Linac-Eng (E-mail)" Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 02 Oct 2002 09:28:35 -0500 From: "Segovia, Luis E." Subject: RE: Siemens Mevatron K-Class Sender: owner-linac-eng@plato.aristotle.net To: Will Pazda , "Linac-Eng (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Will, You wrote charging diode but I believe that you are referring to the charging choke. I have had this guy ark and take out lots of diodes (just like you describe). It is always a good idea to start the klystron step by step when you have these type of problems. Also, if one of your diodes in a stack is defective, you should replace all diodes in that stack. Here is what I would do: * Replaced all defective diodes (and the choke) * Test the HV power supply without a load (should get 22KVdc approximately) * Test your tetrode control box without HV. Verify proper voltages, and go to your test point and make sure that when you "very quickly pass a flash light by the octocoppler (light pipe input) you see a change. (If you have a Klystron procedure reefer to it). * Next, install the tetrode tube and make sure that your static voltages are still OK. * With everything hooked up, disconnect the thyratron trigger; set the PFN to zero; use a HV probe to measure the voltage at the PFN capacitors (The Thyratron is a good point); with the HV power supply breaker off, turn rad on. As you increase PFN, the PFN voltage should gradually increase. For maximum PFN you should read about 21KV. This tell you that your are able to regulate charge. * Now we are ready to pulse the Klystron. Do it at low rep rate and low PFN. Start increasing them as you go. If you need more details, there is a procedure that Siemens training had. It gives a more detailed explanation. After you get things working, make sure that your Kly I is within specifications. If the pulse is too wide, you will loose HV components periodically. I hope this helps. Good luck. Luis Segovia > -----Original Message----- > From: Will Pazda [SMTP:will.pazda@rxl.co.za] > Sent: Wednesday, October 02, 2002 8:03 PM > To: Linac-Eng (E-mail) > Subject: Siemens Mevatron K-Class > > Hi, > > We have a problem in a K-Class modulator that has resulted in the Charging > Diode Stack and the Complete 3 Phase HV Bridge being taken out (42 diodes > in > all !). We believe that the Charging Diode was the initial failure in > going > short, with the result 'ringing' going back into the DC Stage blowing the > bridge. One thing worries us in that we have had charging diodes fail in > the > past, but so far it has never resulted in the bridge going at the same > time. > > We have done a visual check, and all the measurements we can without HV, > and > everything looks O.K.. Has anyone experienced a similar failure ?, was it > just the charging diode as the original fault or something more sinister > ?. > It would be useful to know before I hit that 'Rad-On' button and perhaps > take out another 42 diodes !. > > Thanks & Regards, > > Will Pazda > Cape Town 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 20:38:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17woOf-0004UE-00; Wed, 02 Oct 2002 20:38:57 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 01EF91112F3 for ; Wed, 2 Oct 2002 20:10:44 +0200 (METDST) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN7AKA2V0E8XBE4K@med.uu.nl> for kok@radth.med.uu.nl; Wed, 2 Oct 2002 20:25:17 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA29148 for linac-eng-list; Wed, 02 Oct 2002 09:21:32 -0500 (CDT) Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA29144 for ; Wed, 02 Oct 2002 09:21:30 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Wed, 02 Oct 2002 10:21:00 -0400 Date: Wed, 02 Oct 2002 10:20:49 -0400 From: "Maddox, Buford J" Subject: RE: VIRUS Sender: owner-linac-eng@plato.aristotle.net To: "'Segovia, Luis E.'" , Carl Murphy , EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net Message-id: <36298D09ED1AD311B4DC0008C7F4D4E10A30F047@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-type: text/plain; charset="ISO-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 02 Oct 2002 10:20:49 -0400 From: "Maddox, Buford J" Subject: RE: VIRUS Sender: owner-linac-eng@plato.aristotle.net To: "'Segovia, Luis E.'" , Carl Murphy , EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f I haven't recieved any viruses from the list, just the recent hoax. -----Original Message----- From: Segovia, Luis E. [mailto:LSegovia@tmh.tmc.edu] Sent: Tuesday, October 01, 2002 11:26 AM To: Carl Murphy; EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net Subject: RE: VIRUS I figured. On another virus theme, I have been getting a virus attachment on some messages on a daily basis. Norton has caught it every time and quarentined it. I figured that this list was probably a source. Have any of you experienced the same lately? Luis Segovia > -----Original Message----- > From: Carl Murphy [SMTP:Carl.Murphy@cdha.nshealth.ca] > Sent: Tuesday, October 01, 2002 5:50 AM > To: EBlondJr61@aol.com > Cc: linac-eng@plato.aristotle.net > Subject: Re: VIRUS > > This virus warning is a hoax. Please research these threats before > sending them out to thousands of people. The fix that is suggested below > will actually remove functionality of your computer by deleting the Java > Debugging Manager. > > See this virus hoax information at: > > http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.h > oax.html > > > Regards, > > Carl Murphy > >>> Monday, September 30, 2002 >>> > Subject: Computer Virus > > > > > >All, > > > >I have just received a message from a friend who's address book had been > >infected with a virus that was passed on to me - and everyone in my > address > >book. After following the instruction, I found the virus indeed was > >residing in my C drive. I have followed her directions and deleted it, > but > >it has probably been passed on to everyone in my address book. I am sorry > > >for this, but please follow the easy instructions below and it should get > > >rid of the virus. > > > >The virus, called jdbgmgr.exe, is not detected by Norton or McAfee > >Anti-virus systems. The virus sits quietly for 14 days before damaging > the > >system. It is sent automatically by messenger and by the Address Book, > >whether or not you sent e-mails to your contacts. > > > >Here is how to check for the virus and how to get rid of it. SORRY > > > >YOU MUST DO THIS: > > > >1. Go to Start. Find or search option. 2. In the files/folder option, > write > >the name jdbgmgr.exe 3. Be sure you search your C drive and any other > >devices that you may have 4. Click "find now" 5. The virus has a teddy > bear > >icon with the name jdbgmgr.exe - DO NOT OPEN IT!!!! 6. Go to edit. Choose > > >"Select All" to highlight the file without opening it. 7. Now go to File > >and select Delete. It will then go to the recycle bin 8. Go to Recycle > Bin > >and delete it there as well > > > >IF YOU FIND THE VIRUS, YOU MUST CONTACT EVERYONE IN YOUR ADDRESS BOOK SO > >THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS > > > >To do this, open a new e-mail message. Click the photo of the address > book > >next to "To." Click every name and add it to "BCC" Copy this message, > paste > >to e-mail, enter the subject and send. > > > >Please do this as soon as you receive this message! Again, I am extremely > > >SORRY! > > > > _________________________________ > Carl Murphy, C.E.T. > Linear Accelerator Service Technologist > Medical Physics Department > Nova Scotia Cancer Centre > QEII Health Sciences Centre > Halifax, Nova Scotia, Canada > Email: carl.murphy@cdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 02 23:12:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wqnc-0004kS-00; Wed, 02 Oct 2002 23:12:52 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A0E281112F3; Wed, 2 Oct 2002 22:44:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA04434 for linac-eng-list; Wed, 2 Oct 2002 14:45:25 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA04430 for ; Wed, 2 Oct 2002 14:45:23 -0500 (CDT) Received: from neried. (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Wed, 2 Oct 2002 13:45:35 -0600 Received: (from spc75 [172.24.56.75]) by neried. (NAVGW 2.5.2.11) with SMTP id M2002100213493501852 for ; Wed, 02 Oct 2002 13:49:35 -0600 From: "Bob Penley" To: "Linac list (E-mail)" Subject: 21EX STPS Date: Wed, 2 Oct 2002 13:45:35 -0600 Message-ID: <001701c26a4c$47566be0$4b3818ac@scadomain.local> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bob Penley" To: "Linac list (E-mail)" Subject: 21EX STPS Date: Wed, 2 Oct 2002 13:45:35 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net HI Colleagues Our 21EX is giving many STPS interrupts they originate from the PSASWOK signal from the PGLA on the back connected mother board . A symptom is that on the back connected mother board the LIFTBRK, I/O STATE, LIFT+LIMT and LIFT-LIMT LED's are coming on at the same time very intermittently. The mother board PGLA is a possible suspect as the signals coming from the couch to the mother board are OK. We are looking for any additional information on the I/O state selection tests that can be run on the Back Connected Mother board. Thank you in advance for any help Robert Penley Senior Physics Technician Saskatoon Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 03 03:37:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17wuw8-0005AL-00; Thu, 03 Oct 2002 03:37:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 889A71112F3; Thu, 3 Oct 2002 03:09:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA11180 for linac-eng-list; Wed, 2 Oct 2002 20:09:04 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.adelaideradiotherapycentre.com.au (dibwar.lnk.telstra.net [165.228.3.69]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id UAA11176 for ; Wed, 2 Oct 2002 20:09:01 -0500 (CDT) Received: from akovendy (AZK [192.168.4.71]) by mail.adelaideradiotherapycentre.com.au with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2655.55) id TW3C7151; Thu, 3 Oct 2002 10:37:16 +0930 Message-ID: <000701c26a79$600ac1e0$4704a8c0@adelaideradiotherapycentre.com.au> From: "a kovendy" To: "linac engineering list" Subject: Siemens Mevatron MX for sale Date: Thu, 3 Oct 2002 10:38:18 +0930 Organization: ARC MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "a kovendy" To: "linac engineering list" Subject: Siemens Mevatron MX for sale Date: Thu, 3 Oct 2002 10:38:18 +0930 Organization: ARC X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net The Adelaide Radiotherapy Centre has a Siemens Mevatron (conventional) MX 6MV single-energy linac for sale mid-October (S/No 2259, man. 1992). The machine comes with a beamstopper, indep. lower (X) jaws, Z-IV treatment couch, a set of Scanditronix diode lasers, CCTV cameras and some spares inc. PCBs. Regularly maintained and serviced with a complete service log since commissioning. Requires a replacement magnetron. Would make a good workhorse or could be used for spare parts. Enquiries to the practice manager Mr. Craig Stevens at cstevens@adelaideradiotherapycentre.com.au Andrew Kovendy Physics, Engineering & IT Services Adelaide Radiotherapy Centre 352 South Tce., Adelaide, South Australia Tel +618 8223 3022 Fax +618 8232 1243 email akovendy@adelaideradiotherapycentre.com.au 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 03 16:28:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17x6xW-00026t-00; Thu, 03 Oct 2002 16:28:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ED61C1112F1; Thu, 3 Oct 2002 15:59:33 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA19884 for linac-eng-list; Thu, 3 Oct 2002 08:38:49 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r04.mx.aol.com (imo-r04.mx.aol.com [152.163.225.100]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA19879 for ; Thu, 3 Oct 2002 08:38:44 -0500 (CDT) From: MIROSTEIMEL@aol.com Received: from MIROSTEIMEL@aol.com by imo-r04.mx.aol.com (mail_out_v34.13.) id s.6f.2e9bc800 (4340); Thu, 3 Oct 2002 09:38:02 -0400 (EDT) Message-ID: <6f.2e9bc800.2acda23a@aol.com> Date: Thu, 3 Oct 2002 09:38:02 EDT Subject: Re: VIRUS To: JMADDOX@LROC.HARVARD.EDU, LSegovia@tmh.tmc.edu, Carl.Murphy@cdha.nshealth.ca, EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_6f.2e9bc800.2acda23a_boundary" X-Mailer: AOL 7.0 for Windows US sub 10642 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: MIROSTEIMEL@aol.com Date: Thu, 3 Oct 2002 09:38:02 EDT Subject: Re: VIRUS To: JMADDOX@LROC.HARVARD.EDU, LSegovia@tmh.tmc.edu, Carl.Murphy@cdha.nshealth.ca, EBlondJr61@aol.com Cc: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_6f.2e9bc800.2acda23a_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Just thought I'd add my 2 cents: Watch for e-mails, with attachments, with the subject: "Fwd: to Class". I received one, as did several of my e-mail contacts. The return address always appears legitimate and for that reason I opened the attachment, which did nothing but I suspect it was the cause of a recent virus infection I experienced. One sinister aspect of it is that (at least in my case) it turned off my Norton auto-detect function. Sorry, I don't recall the virus name and a search on "Fwd: To Class" does not yeild any definition that I have found. Dave Steimel MIRO --part1_6f.2e9bc800.2acda23a_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Just thought I'd add my 2 cents:
    Watch for e-mails, with attachments, with the subject: "Fwd: to Class". I received one, as did several of my e-mail contacts. The return address always appears legitimate and for that reason I opened the attachment, which did nothing but I suspect it was the cause of a recent virus infection I experienced. One sinister aspect of it is that (at least in my case) it turned off my Norton auto-detect function.

    Sorry, I don't recall the virus name and a search on "Fwd: To Class" does not yeild any definition that I have found.

    Dave Steimel
    MIRO     --part1_6f.2e9bc800.2acda23a_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 03 20:53:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xB6f-00030k-00; Thu, 03 Oct 2002 20:53:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 58EDF1112F3; Thu, 3 Oct 2002 20:25:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA26429 for linac-eng-list; Thu, 3 Oct 2002 12:53:21 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mta4.rcsntx.swbell.net (mta4.rcsntx.swbell.net [151.164.30.28]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA26425 for ; Thu, 3 Oct 2002 12:53:13 -0500 (CDT) Received: from 3vhgn01 ([65.69.222.212]) by mta4.rcsntx.swbell.net (iPlanet Messaging Server 5.1 (built May 7 2001)) with SMTP id <0H3F005ZN3094P@mta4.rcsntx.swbell.net> for linac-eng@plato.aristotle.net; Thu, 03 Oct 2002 12:52:57 -0500 (CDT) Date: Thu, 03 Oct 2002 13:13:26 -0500 From: linacs Subject: Virus FYI To: Linac List Message-id: <000e01c26b08$91f8b060$d4de4541@3vhgn01> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook Express 6.00.2600.0000 Content-type: multipart/alternative; boundary="Boundary_(ID_AX8ocxETxh9xWZYLcESKgw)" X-Priority: 3 X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 03 Oct 2002 13:13:26 -0500 From: linacs Subject: Virus FYI To: Linac List X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Priority: 3 X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. --Boundary_(ID_AX8ocxETxh9xWZYLcESKgw) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Ladies and gentlemen, There was a message posted a couple of days ago asking us to delete files because they were infected, etc. I jus got two messages form Beckman Allan T (??) with sebject Re: Hialeah and an attachment. Norton detected the virus W32bugbear (Rings a bell?) and quarentined it. Allan, if you are form this list, your computer maight be infected. Luis Segovia --Boundary_(ID_AX8ocxETxh9xWZYLcESKgw) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 7BIT
    Ladies and gentlemen,
     
    There was a message posted a couple of days ago asking us to delete files because they were infected, etc.
     
    I jus got two messages form Beckman Allan T (??) with sebject Re: Hialeah and an attachment.  Norton detected the virus W32bugbear (Rings a bell?) and quarentined it.  Allan, if you are form this list, your computer maight be infected.
     
     
    Luis Segovia
     
    --Boundary_(ID_AX8ocxETxh9xWZYLcESKgw)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 03 21:46:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xBvE-00036B-00; Thu, 03 Oct 2002 21:46:08 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 270B81112F1; Thu, 3 Oct 2002 21:17:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA28810 for linac-eng-list; Thu, 3 Oct 2002 14:18:53 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA28806 for ; Thu, 3 Oct 2002 14:18:51 -0500 (CDT) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id OAA12535; Thu, 3 Oct 2002 14:14:34 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C47.00693695 ; Thu, 3 Oct 2002 14:08:54 -0500 X-Lotus-FromDomain: MDACC To: linacs Cc: Linac List Message-ID: <86256C47.00692631.00@utm-notesob1.mdacc.tmc.edu> Date: Thu, 3 Oct 2002 14:09:22 -0500 Subject: Re: Virus FYI Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: linacs Cc: Linac List Date: Thu, 3 Oct 2002 14:09:22 -0500 Subject: Re: Virus FYI Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Gentlemen and Ladies, I have received several warnings from our IS deptment about e-mails that have been quaranteened. I don't think any were from the list server, but I think this one is going to be big. So be careful and watch out. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 03 23:19:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xDNX-0003CM-00; Thu, 03 Oct 2002 23:19:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E90D01112F1; Thu, 3 Oct 2002 22:50:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA00577 for linac-eng-list; Thu, 3 Oct 2002 15:46:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep03.biz.rr.com (fep03.biz.rr.com [24.30.201.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA00573 for ; Thu, 3 Oct 2002 15:46:55 -0500 (CDT) Received: from pent4 ([24.174.72.124]) by fep03.biz.rr.com with ESMTP id <20021003204655.TRXM1580.fep03.biz.rr.com@pent4> for ; Thu, 3 Oct 2002 16:46:55 -0400 From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 3 Oct 2002 15:46:53 -0500 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Virus - Bugbear Reply-To: acceltek@acceltekservice.com Message-ID: <3D9C666D.13528.14542A5@localhost> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Thu, 3 Oct 2002 15:46:53 -0500 Subject: Virus - Bugbear Reply-To: acceltek@acceltekservice.com Sender: owner-linac-eng@plato.aristotle.net I also got a virus today (caught by the scanner). It as the bugbear virus. I searched the linac 'who' list to see if the sender was from the list, but he was not on the list, so I don't think the virus originated from any list member. CNN reports that the bugbear virus is making the rounds at the moment. BTW, the subject was 'Wire Transfer'. Speaking of wire transfer, I must go now and make some banking arrangments for a poor fellow in Nigeria who e-mailed me yesterday. He has a bit of a financial / banking mess, and needs me to help him sort it out. I don't usually get involved in such matters, but he's promising me $14 mil., and seems like a nice, upstanding person .. Tom McCausland 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 01:07:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xF3z-0003IO-00; Fri, 04 Oct 2002 01:07:23 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A0F4D1112F1; Fri, 4 Oct 2002 00:38:37 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA04138 for linac-eng-list; Thu, 3 Oct 2002 17:41:52 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.primex.co.uk (smtp.primex.co.uk [80.95.192.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA04134 for ; Thu, 3 Oct 2002 17:41:49 -0500 (CDT) Received: from D66HQG0J (th-gt149-069.pool.dircon.co.uk [195.157.34.69]) by smtp.primex.co.uk (8.11.6/8.11.6) with SMTP id g93MiUw00358 for ; Thu, 3 Oct 2002 23:44:30 +0100 Message-ID: <010f01c26b2e$0da2b5b0$45229dc3@D66HQG0J> From: "Chris" To: References: <6f.2e9bc800.2acda23a@aol.com> Subject: Re: VIRUS Date: Thu, 3 Oct 2002 23:32:51 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00DF_01C26B35.30907F10" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris" To: Subject: Re: VIRUS Date: Thu, 3 Oct 2002 23:32:51 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_00DF_01C26B35.30907F10 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We have had loads of these emails from AAPM, so presumably the virus has = now spread throughout the entire Med Phys community Chris ----- Original Message -----=20 From: MIROSTEIMEL@aol.com=20 To: JMADDOX@LROC.HARVARD.EDU ; LSegovia@tmh.tmc.edu ; = Carl.Murphy@cdha.nshealth.ca ; EBlondJr61@aol.com=20 Cc: linac-eng@plato.aristotle.net=20 Sent: Thursday, October 03, 2002 2:38 PM Subject: Re: VIRUS Just thought I'd add my 2 cents: Watch for e-mails, with attachments, with the subject: "Fwd: to = Class". I received one, as did several of my e-mail contacts. The return = address always appears legitimate and for that reason I opened the = attachment, which did nothing but I suspect it was the cause of a recent = virus infection I experienced. One sinister aspect of it is that (at = least in my case) it turned off my Norton auto-detect function. Sorry, I don't recall the virus name and a search on "Fwd: To Class" = does not yeild any definition that I have found. Dave Steimel MIRO=20 ------=_NextPart_000_00DF_01C26B35.30907F10 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    We have had loads of these emails from = AAPM, so=20 presumably the virus has now spread throughout the entire Med Phys=20 community
    Chris
    ----- Original Message -----
    From:=20 MIROSTEIMEL@aol.com
    To: JMADDOX@LROC.HARVARD.EDU = ; LSegovia@tmh.tmc.edu ; Carl.Murphy@cdha.nshealth.ca= ;=20 EBlondJr61@aol.com
    Cc: linac-eng@plato.aristotle.n= et=20
    Sent: Thursday, October 03, = 2002 2:38=20 PM
    Subject: Re: VIRUS

    Just thought I'd add my 2 cents:
    Watch for = e-mails, with=20 attachments, with the subject: "Fwd: to Class". I received one, as did = several=20 of my e-mail contacts. The return address always appears legitimate = and for=20 that reason I opened the attachment, which did nothing but I suspect = it was=20 the cause of a recent virus infection I experienced. One sinister = aspect of it=20 is that (at least in my case) it turned off my Norton auto-detect=20 function.

    Sorry, I don't recall the virus name and a search on = "Fwd: To=20 Class" does not yeild any definition that I have found.

    Dave=20 Steimel
    MIRO         ------=_NextPart_000_00DF_01C26B35.30907F10-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 10:20:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xNgs-0004Qk-00; Fri, 04 Oct 2002 10:20:06 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7959E1112F4 for ; Fri, 4 Oct 2002 09:51:11 +0200 (METDST) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN8X5WV8W28XERMN@med.uu.nl> for kok@radth.med.uu.nl; Fri, 4 Oct 2002 00:23:27 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA00577 for linac-eng-list; Thu, 03 Oct 2002 15:46:57 -0500 (CDT) Received: from fep03.biz.rr.com (fep03.biz.rr.com [24.30.201.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA00573 for ; Thu, 03 Oct 2002 15:46:55 -0500 (CDT) Received: from pent4 ([24.174.72.124]) by fep03.biz.rr.com with ESMTP id <20021003204655.TRXM1580.fep03.biz.rr.com@pent4> for ; Thu, 03 Oct 2002 16:46:55 -0400 Date: Thu, 03 Oct 2002 15:46:53 -0500 From: Thomas McCausland Subject: Virus - Bugbear Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Reply-To: acceltek@acceltekservice.com Message-id: <3D9C666D.13528.14542A5@localhost> MIME-version: 1.0 X-Mailer: Pegasus Mail for Win32 (v3.12c) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 03 Oct 2002 15:46:53 -0500 From: Thomas McCausland Subject: Virus - Bugbear Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Reply-To: acceltek@acceltekservice.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f I also got a virus today (caught by the scanner). It as the bugbear virus. I searched the linac 'who' list to see if the sender was from the list, but he was not on the list, so I don't think the virus originated from any list member. CNN reports that the bugbear virus is making the rounds at the moment. BTW, the subject was 'Wire Transfer'. Speaking of wire transfer, I must go now and make some banking arrangments for a poor fellow in Nigeria who e-mailed me yesterday. He has a bit of a financial / banking mess, and needs me to help him sort it out. I don't usually get involved in such matters, but he's promising me $14 mil., and seems like a nice, upstanding person .. Tom McCausland 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 10:20:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xNhQ-0004Sp-00; Fri, 04 Oct 2002 10:20:40 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4357D1112F4 for ; Fri, 4 Oct 2002 09:51:46 +0200 (METDST) Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN91R47CHQ8X7YN3@med.uu.nl> for kok@radth.med.uu.nl; Fri, 4 Oct 2002 02:35:05 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA04138 for linac-eng-list; Thu, 03 Oct 2002 17:41:52 -0500 (CDT) Received: from smtp.primex.co.uk (smtp.primex.co.uk [80.95.192.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA04134 for ; Thu, 03 Oct 2002 17:41:49 -0500 (CDT) Received: from D66HQG0J (th-gt149-069.pool.dircon.co.uk [195.157.34.69]) by smtp.primex.co.uk (8.11.6/8.11.6) with SMTP id g93MiUw00358 for ; Thu, 03 Oct 2002 23:44:30 +0100 Date: Thu, 03 Oct 2002 23:32:51 +0100 From: Chris Subject: Re: VIRUS Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: <010f01c26b2e$0da2b5b0$45229dc3@D66HQG0J> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook Express 6.00.2600.0000 Content-type: multipart/alternative; boundary="----=_NextPart_000_00DF_01C26B35.30907F10" X-Priority: 3 X-MSMail-priority: Normal Precedence: bulk References: <6f.2e9bc800.2acda23a@aol.com> X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 03 Oct 2002 23:32:51 +0100 From: Chris Subject: Re: VIRUS Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Priority: 3 X-MSMail-priority: Normal X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This is a multi-part message in MIME format. ------=_NextPart_000_00DF_01C26B35.30907F10 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We have had loads of these emails from AAPM, so presumably the virus has = now spread throughout the entire Med Phys community Chris ----- Original Message -----=20 From: MIROSTEIMEL@aol.com=20 To: JMADDOX@LROC.HARVARD.EDU ; LSegovia@tmh.tmc.edu ; = Carl.Murphy@cdha.nshealth.ca ; EBlondJr61@aol.com=20 Cc: linac-eng@plato.aristotle.net=20 Sent: Thursday, October 03, 2002 2:38 PM Subject: Re: VIRUS Just thought I'd add my 2 cents: Watch for e-mails, with attachments, with the subject: "Fwd: to = Class". I received one, as did several of my e-mail contacts. The return = address always appears legitimate and for that reason I opened the = attachment, which did nothing but I suspect it was the cause of a recent = virus infection I experienced. One sinister aspect of it is that (at = least in my case) it turned off my Norton auto-detect function. Sorry, I don't recall the virus name and a search on "Fwd: To Class" = does not yeild any definition that I have found. Dave Steimel MIRO=20 ------=_NextPart_000_00DF_01C26B35.30907F10 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    We have had loads of these emails from = AAPM, so=20 presumably the virus has now spread throughout the entire Med Phys=20 community
    Chris
    ----- Original Message -----
    From:=20 MIROSTEIMEL@aol.com
    To: JMADDOX@LROC.HARVARD.EDU = ; LSegovia@tmh.tmc.edu ; Carl.Murphy@cdha.nshealth.ca= ;=20 EBlondJr61@aol.com
    Cc: linac-eng@plato.aristotle.n= et=20
    Sent: Thursday, October 03, = 2002 2:38=20 PM
    Subject: Re: VIRUS

    Just thought I'd add my 2 cents:
    Watch for = e-mails, with=20 attachments, with the subject: "Fwd: to Class". I received one, as did = several=20 of my e-mail contacts. The return address always appears legitimate = and for=20 that reason I opened the attachment, which did nothing but I suspect = it was=20 the cause of a recent virus infection I experienced. One sinister = aspect of it=20 is that (at least in my case) it turned off my Norton auto-detect=20 function.

    Sorry, I don't recall the virus name and a search on = "Fwd: To=20 Class" does not yeild any definition that I have found.

    Dave=20 Steimel
    MIRO         ------=_NextPart_000_00DF_01C26B35.30907F10-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 16:46:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xTiv-00081C-00; Fri, 04 Oct 2002 16:46:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AE0131112F4; Fri, 4 Oct 2002 16:17:34 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA14783 for linac-eng-list; Fri, 4 Oct 2002 09:08:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mbpcc_exchange.ololrmc.com ([64.56.25.163]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA14779 for ; Fri, 4 Oct 2002 09:08:18 -0500 (CDT) Received: by library1.itp.ucsb.edu with Internet Mail Service (5.5.2656.59) id <4H6FK3TH>; Fri, 4 Oct 2002 09:05:07 -0500 Message-ID: From: "Hidalgo, Dr Oscar" To: linac-eng@plato.aristotle.net Cc: "'MIROSTEIMEL@aol.com'" , "'AAPM HQ'" Subject: FW: InoculateIT detected the (Win32/Bugbear.Worm) virus in Mailbo x (Hidalgo, Dr Oscar), Sender (NG K H) !!! Date: Fri, 4 Oct 2002 09:05:06 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hidalgo, Dr Oscar" To: linac-eng@plato.aristotle.net Cc: "'MIROSTEIMEL@aol.com'" , "'AAPM HQ'" Subject: FW: InoculateIT detected the (Win32/Bugbear.Worm) virus in Mailbo x (Hidalgo, Dr Oscar), Sender (NG K H) !!! Date: Fri, 4 Oct 2002 09:05:06 -0500 Sender: owner-linac-eng@plato.aristotle.net ALERT! The virus going around got through via NGKH. -----Original Message----- From: Hidalgo, Dr Oscar Sent: Thursday, October 03, 2002 6:23 AM To: Hidalgo, Dr Oscar Subject: InoculateIT detected the (Win32/Bugbear.Worm) virus in Mailbox (Hidalgo, Dr Oscar), Sender (NG K H) !!! The (Win32/Bugbear.Worm) virus was detected in (Hidalgo, Dr Oscar\pptback1.ppt.pif) and was sent by (NG K H). Action: (File was Deleted.). 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 17:59:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xUrt-0008Ls-00; Fri, 04 Oct 2002 17:59:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1759F1112F4; Fri, 4 Oct 2002 17:30:52 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA16677 for linac-eng-list; Fri, 4 Oct 2002 10:33:14 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA16673 for ; Fri, 4 Oct 2002 10:33:08 -0500 (CDT) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA2A9A for ; Fri, 4 Oct 2002 10:30:04 -0500 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Fri, 04 Oct 2002 10:32:35 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Fri, 04 Oct 2002 10:32:24 -0500 From: "Stephen Jordan" To: Subject: 2100CD sn1007 GFIL Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA16674 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 04 Oct 2002 10:32:24 -0500 From: "Stephen Jordan" To: Subject: 2100CD sn1007 GFIL Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA16674 Sender: owner-linac-eng@plato.aristotle.net Hello All, Last night during routine tuning, The linac gave a GFIL error. I had tuned 15X (tweaked PFN for max d/r, then adjusted Gun I (GFIL flashing) to make sure I was peaked), everything looked fine. When switching to 6X, GFIL came on and stayed active. I had to shut the gun deck down (digital) to clear the error. Has anyone experienced this? Thanks in advance, Steve Jordan UAB Rad Physics 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 19:15:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xW3G-00008U-00; Fri, 04 Oct 2002 19:15:46 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EB4381112F4; Fri, 4 Oct 2002 18:46:40 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA18408 for linac-eng-list; Fri, 4 Oct 2002 11:49:32 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA18402 for ; Fri, 4 Oct 2002 11:49:30 -0500 (CDT) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2650.21) id ; Fri, 4 Oct 2002 12:48:55 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F04F@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Segovia, Luis E.'" , Will Pazda , "Linac-Eng (E-mail)" Subject: RE: Siemens Mevatron K-Class Date: Fri, 4 Oct 2002 12:48:54 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Segovia, Luis E.'" , Will Pazda , "Linac-Eng (E-mail)" Subject: RE: Siemens Mevatron K-Class Date: Fri, 4 Oct 2002 12:48:54 -0400 Sender: owner-linac-eng@plato.aristotle.net I agree with Luis' approach, good write up. Nasty area to troubleshoot, as everything is coupled and it damages so much when it breaks down. A word of caution, when dissasembling a hv modulator, you may be removing the discharge paths, so it stays charged! For instance, if the pfn path through cables or the copper straps is not connected, the pfn will not discharge when the hook stick is placed on the top of the capacitors, the usual place. Use two hooksticks, one on each side of any capacitor your want to discharge, both on at the same time. In a resonant charge system, controlled by DEQing, you cannot vary the high voltage without DEQing, ie, without pulsing. The HVPS will come on at the same voltage. You can vary the control voltage in the low level circuits, which I think you were suggesting. Be sure your probes are rated high enough. HV scope probes usually are rated 20kvdc, max! They can do 40kv pulses, but not DC. Watch out for that tetrode, I think some caps inside the socket can stay charged up. I have seen socket problems there. I have seen charging chokes break down, but only internally, so the charge pulse length is 1/2 normal. Has anyone seen breakdown to ground? I have seen breakdown at the copper straps, and also when a solenoid wire was too close to HV. I like the idea of bringing it up slowly, watching the Charging pulse, after all the other tests. Bet the waveform is interesting. Why no HVOC? Sense resistor is after the diode/storage cap, problem may be in there. Good luck, Jerry -----Original Message----- From: Segovia, Luis E. [mailto:LSegovia@tmh.tmc.edu] Sent: Wednesday, October 02, 2002 10:29 AM To: Will Pazda; Linac-Eng (E-mail) Subject: RE: Siemens Mevatron K-Class Will, You wrote charging diode but I believe that you are referring to the charging choke. I have had this guy ark and take out lots of diodes (just like you describe). It is always a good idea to start the klystron step by step when you have these type of problems. Also, if one of your diodes in a stack is defective, you should replace all diodes in that stack. Here is what I would do: * Replaced all defective diodes (and the choke) * Test the HV power supply without a load (should get 22KVdc approximately) * Test your tetrode control box without HV. Verify proper voltages, and go to your test point and make sure that when you "very quickly pass a flash light by the octocoppler (light pipe input) you see a change. (If you have a Klystron procedure reefer to it). * Next, install the tetrode tube and make sure that your static voltages are still OK. * With everything hooked up, disconnect the thyratron trigger; set the PFN to zero; use a HV probe to measure the voltage at the PFN capacitors (The Thyratron is a good point); with the HV power supply breaker off, turn rad on. As you increase PFN, the PFN voltage should gradually increase. For maximum PFN you should read about 21KV. This tell you that your are able to regulate charge. * Now we are ready to pulse the Klystron. Do it at low rep rate and low PFN. Start increasing them as you go. If you need more details, there is a procedure that Siemens training had. It gives a more detailed explanation. After you get things working, make sure that your Kly I is within specifications. If the pulse is too wide, you will loose HV components periodically. I hope this helps. Good luck. Luis Segovia > -----Original Message----- > From: Will Pazda [SMTP:will.pazda@rxl.co.za] > Sent: Wednesday, October 02, 2002 8:03 PM > To: Linac-Eng (E-mail) > Subject: Siemens Mevatron K-Class > > Hi, > > We have a problem in a K-Class modulator that has resulted in the Charging > Diode Stack and the Complete 3 Phase HV Bridge being taken out (42 diodes > in > all !). We believe that the Charging Diode was the initial failure in > going > short, with the result 'ringing' going back into the DC Stage blowing the > bridge. One thing worries us in that we have had charging diodes fail in > the > past, but so far it has never resulted in the bridge going at the same > time. > > We have done a visual check, and all the measurements we can without HV, > and > everything looks O.K.. Has anyone experienced a similar failure ?, was it > just the charging diode as the original fault or something more sinister > ?. > It would be useful to know before I hit that 'Rad-On' button and perhaps > take out another 42 diodes !. > > Thanks & Regards, > > Will Pazda > Cape Town 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 19:56:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xWh8-0000Aj-00; Fri, 04 Oct 2002 19:56:58 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 874281112F5; Fri, 4 Oct 2002 19:27:51 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA25124 for linac-eng-list; Fri, 4 Oct 2002 12:31:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA25108 for ; Fri, 4 Oct 2002 12:31:17 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id g94HUiK18941; Fri, 4 Oct 2002 13:30:44 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C48.005FED67 ; Fri, 4 Oct 2002 13:27:46 -0400 X-Lotus-FromDomain: LRCC To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net Message-ID: <85256C48.005FED23.00@mail.lrcc.on.ca> Date: Fri, 4 Oct 2002 13:27:45 -0400 Subject: Re: 2100CD sn1007 GFIL Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net Date: Fri, 4 Oct 2002 13:27:45 -0400 Subject: Re: 2100CD sn1007 GFIL Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net I have seen the GFIL interlock come on when you turn the Motor Gun Pot ON. But it just flashes Randy 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 04 20:47:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xXUH-0000DJ-00; Fri, 04 Oct 2002 20:47:45 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C7A731112F4; Fri, 4 Oct 2002 20:18:37 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA04241 for linac-eng-list; Fri, 4 Oct 2002 13:18:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA04237 for ; Fri, 4 Oct 2002 13:18:52 -0500 (CDT) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA17961; Fri, 4 Oct 2002 13:15:08 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C48.0063FB0F ; Fri, 4 Oct 2002 13:12:03 -0500 X-Lotus-FromDomain: MDACC To: Randy.McVittie@lrcc.on.ca Cc: "Stephen Jordan" , linac-eng@plato.aristotle.net Message-ID: <86256C48.0063F9C9.00@utm-notesob1.mdacc.tmc.edu> Date: Fri, 4 Oct 2002 13:13:07 -0500 Subject: Re: 2100CD sn1007 GFIL Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Randy.McVittie@lrcc.on.ca Cc: "Stephen Jordan" , linac-eng@plato.aristotle.net Date: Fri, 4 Oct 2002 13:13:07 -0500 Subject: Re: 2100CD sn1007 GFIL Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net This is completely normal, It notifies the user that the pot is in manual mode. To Beam on you should override the interlock. Taking appropriate safety measures. Randy.McVittie@lrcc.on.ca on 10/04/2002 12:27:45 PM To: "Stephen Jordan" cc: linac-eng@plato.aristotle.net (bcc: Vincente Ortiz/MDACC) Subject: Re: 2100CD sn1007 GFIL I have seen the GFIL interlock come on when you turn the Motor Gun Pot ON. But it just flashes Randy 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 05 01:40:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xc3s-0000SP-00; Sat, 05 Oct 2002 01:40:48 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id B3BE21112F5 for ; Sat, 5 Oct 2002 01:11:36 +0200 (METDST) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN9Y2OD4OE8XDTOZ@med.uu.nl> for kok@radth.med.uu.nl; Fri, 4 Oct 2002 17:59:52 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA14783 for linac-eng-list; Fri, 04 Oct 2002 09:08:20 -0500 (CDT) Received: from mbpcc_exchange.ololrmc.com ([64.56.25.163]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA14779 for ; Fri, 04 Oct 2002 09:08:18 -0500 (CDT) Received: by library1.itp.ucsb.edu with Internet Mail Service (5.5.2656.59) id <4H6FK3TH>; Fri, 04 Oct 2002 09:05:07 -0500 Date: Fri, 04 Oct 2002 09:05:06 -0500 From: "Hidalgo, Dr Oscar" Subject: FW: InoculateIT detected the (Win32/Bugbear.Worm) virus in Mailbo x (Hidalgo, Dr Oscar), Sender (NG K H) !!! Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Cc: "'MIROSTEIMEL@aol.com'" , 'AAPM HQ' Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-type: text/plain Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 04 Oct 2002 09:05:06 -0500 From: "Hidalgo, Dr Oscar" Subject: FW: InoculateIT detected the (Win32/Bugbear.Worm) virus in Mailbo x (Hidalgo, Dr Oscar), Sender (NG K H) !!! Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Cc: "'MIROSTEIMEL@aol.com'" , 'AAPM HQ' X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f ALERT! The virus going around got through via NGKH. -----Original Message----- From: Hidalgo, Dr Oscar Sent: Thursday, October 03, 2002 6:23 AM To: Hidalgo, Dr Oscar Subject: InoculateIT detected the (Win32/Bugbear.Worm) virus in Mailbox (Hidalgo, Dr Oscar), Sender (NG K H) !!! The (Win32/Bugbear.Worm) virus was detected in (Hidalgo, Dr Oscar\pptback1.ppt.pif) and was sent by (NG K H). Action: (File was Deleted.). 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 05 01:42:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xc58-0000Uf-00; Sat, 05 Oct 2002 01:42:06 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3F5D91112F4 for ; Sat, 5 Oct 2002 01:12:55 +0200 (METDST) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN9Z1FO0NQ8XDQJA@med.uu.nl> for kok@radth.med.uu.nl; Fri, 4 Oct 2002 18:27:54 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA15704 for linac-eng-list; Fri, 04 Oct 2002 09:53:33 -0500 (CDT) Received: from xchange.radonc.musc.edu (xchange.RadOnc.MUSC.EDU [128.23.55.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA15700 for ; Fri, 04 Oct 2002 09:53:31 -0500 (CDT) Received: by xchange.RadOnc.MUSC.EDU with Internet Mail Service (5.5.2653.19) id ; Fri, 04 Oct 2002 10:53:00 -0400 Date: Fri, 04 Oct 2002 10:53:00 -0400 From: "Fort, Don" Subject: FW: Virus - Bugbear Sender: owner-linac-eng@plato.aristotle.net To: "LINAC ENGINEERS E-MAIL LIST (E-mail)" Message-id: <0758E63D5DEC3B458FF43D068F1CC7360159F8@xchange.RadOnc.MUSC.EDU> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 04 Oct 2002 10:53:00 -0400 From: "Fort, Don" Subject: FW: Virus - Bugbear Sender: owner-linac-eng@plato.aristotle.net To: "LINAC ENGINEERS E-MAIL LIST (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f McAfee raised the threat level on Bugbear to high yesterday, from pervious warniings of medium risk. Keep the anti-virus software updated! -----Original Message----- From: Thomas McCausland [mailto:acceltek@acceltekservice.com] Sent: Thursday, October 03, 2002 4:47 PM To: linac-eng@plato.aristotle.net Subject: Virus - Bugbear I also got a virus today (caught by the scanner). It as the bugbear virus. I searched the linac 'who' list to see if the sender was from the list, but he was not on the list, so I don't think the virus originated from any list member. CNN reports that the bugbear virus is making the rounds at the moment. BTW, the subject was 'Wire Transfer'. Speaking of wire transfer, I must go now and make some banking arrangments for a poor fellow in Nigeria who e-mailed me yesterday. He has a bit of a financial / banking mess, and needs me to help him sort it out. I don't usually get involved in such matters, but he's promising me $14 mil., and seems like a nice, upstanding person .. Tom McCausland 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 05 01:44:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xc7D-0000ZK-00; Sat, 05 Oct 2002 01:44:15 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7FDE81112F4 for ; Sat, 5 Oct 2002 01:15:04 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNA44Q5TSG8XBVIL@med.uu.nl> for kok@radth.med.uu.nl; Fri, 4 Oct 2002 20:54:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNA3YGOM0M8XEHD7@med.uu.nl> for kok@radth.med.uu.nl; Fri, 04 Oct 2002 20:49:03 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA22020 for linac-eng-list; Fri, 04 Oct 2002 12:20:26 -0500 (CDT) Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA22014 for ; Fri, 04 Oct 2002 12:20:24 -0500 (CDT) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.5329); Fri, 04 Oct 2002 13:21:45 -0400 Date: Fri, 04 Oct 2002 13:21:45 -0400 From: "Orsolini, Joe D" Subject: RE: 2100CD sn1007 GFIL Sender: owner-linac-eng@plato.aristotle.net To: Stephen Jordan , linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft Exchange V6.0.5762.3 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA22015 Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 8bit Precedence: bulk Thread-Topic: 2100CD sn1007 GFIL Thread-Index: AcJrxO/X7/1eRHSbRmq/gctECpWgMQABQtXw content-class: urn:content-classes:message X-OriginalArrivalTime: 04 Oct 2002 17:21:45.0371 (UTC) FILETIME=[838236B0:01C26BCA] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 04 Oct 2002 13:21:45 -0400 From: "Orsolini, Joe D" Subject: RE: 2100CD sn1007 GFIL Sender: owner-linac-eng@plato.aristotle.net To: Stephen Jordan , linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft Exchange V6.0.5762.3 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA22015 Thread-Topic: 2100CD sn1007 GFIL Thread-Index: AcJrxO/X7/1eRHSbRmq/gctECpWgMQABQtXw content-class: urn:content-classes:message X-OriginalArrivalTime: 04 Oct 2002 17:21:45.0371 (UTC) FILETIME=[838236B0:01C26BCA] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f What error did the Digital deck show? -----Original Message----- From: Stephen Jordan [mailto:srjordan@uabmc.edu] Sent: Friday, October 04, 2002 11:32 AM To: linac-eng@plato.aristotle.net Subject: 2100CD sn1007 GFIL Hello All, Last night during routine tuning, The linac gave a GFIL error. I had tuned 15X (tweaked PFN for max d/r, then adjusted Gun I (GFIL flashing) to make sure I was peaked), everything looked fine. When switching to 6X, GFIL came on and stayed active. I had to shut the gun deck down (digital) to clear the error. Has anyone experienced this? Thanks in advance, Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 05 01:44:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17xc7K-0000Zc-00; Sat, 05 Oct 2002 01:44:22 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 300EC1112F4 for ; Sat, 5 Oct 2002 01:15:11 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNA5GTFZHC8XGRKA@med.uu.nl> for kok@radth.med.uu.nl; Fri, 4 Oct 2002 21:32:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNA4AXVP6G8XFNGV@med.uu.nl> for kok@radth.med.uu.nl; Fri, 04 Oct 2002 20:58:20 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA25124 for linac-eng-list; Fri, 04 Oct 2002 12:31:20 -0500 (CDT) Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA25108 for ; Fri, 04 Oct 2002 12:31:17 -0500 (CDT) Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id g94HUiK18941; Fri, 04 Oct 2002 13:30:44 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C48.005FED67 ; Fri, 04 Oct 2002 13:27:46 -0400 Date: Fri, 04 Oct 2002 13:27:45 -0400 From: Randy.McVittie@lrcc.on.ca Subject: Re: 2100CD sn1007 GFIL Sender: owner-linac-eng@plato.aristotle.net To: Stephen Jordan Cc: linac-eng@plato.aristotle.net Message-id: <85256C48.005FED23.00@mail.lrcc.on.ca> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-disposition: inline Precedence: bulk X-Lotus-FromDomain: LRCC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 04 Oct 2002 13:27:45 -0400 From: Randy.McVittie@lrcc.on.ca Subject: Re: 2100CD sn1007 GFIL Sender: owner-linac-eng@plato.aristotle.net To: Stephen Jordan Cc: linac-eng@plato.aristotle.net Content-disposition: inline X-Lotus-FromDomain: LRCC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f I have seen the GFIL interlock come on when you turn the Motor Gun Pot ON. But it just flashes Randy 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Oct 06 22:52:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17yIO0-0006CG-00; Sun, 06 Oct 2002 22:52:24 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CBC651112F4; Sun, 6 Oct 2002 22:22:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA12298 for linac-eng-list; Sun, 6 Oct 2002 15:17:42 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA12292 for ; Sun, 6 Oct 2002 15:17:38 -0500 (CDT) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id JAA02097 for ; Mon, 7 Oct 2002 09:15:31 +1300 Received: from smtpgate.chhlth.govt.nz (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with SMTP id for ; Mon, 7 Oct 2002 08:14:09 -0500 Received: from CHCH2-Message_Server by smtpgate.chhlth.govt.nz with Novell_GroupWise; Mon, 07 Oct 2002 09:16:20 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Mon, 07 Oct 2002 09:16:09 +1300 From: "Dave Pinchin" To: , Subject: Re: 2100CD sn1007 GFIL Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA12293 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 07 Oct 2002 09:16:09 +1300 From: "Dave Pinchin" To: , Subject: Re: 2100CD sn1007 GFIL Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA12293 Sender: owner-linac-eng@plato.aristotle.net G'day, We have had the A/D chip in the hot deck give this symptom. Intermittent GFIL for no apparent reason. Gets worse over months. :D >>> "Stephen Jordan" 5/10/02 03:32:24 >>> Hello All, Last night during routine tuning, The linac gave a GFIL error. I had tuned 15X (tweaked PFN for max d/r, then adjusted Gun I (GFIL flashing) to make sure I was peaked), everything looked fine. When switching to 6X, GFIL came on and stayed active. I had to shut the gun deck down (digital) to clear the error. Has anyone experienced this? Thanks in advance, Steve Jordan UAB Rad Physics ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. 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Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Oct 07 16:49:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17yZBy-0003AT-00; Mon, 07 Oct 2002 16:49:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D08B51112F1; Mon, 7 Oct 2002 16:18:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA24042 for linac-eng-list; Mon, 7 Oct 2002 09:14:09 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r04.mx.aol.com (imo-r04.mx.aol.com [152.163.225.100]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA24038 for ; Mon, 7 Oct 2002 09:14:07 -0500 (CDT) From: Rtsolution@aol.com Received: from Rtsolution@aol.com by imo-r04.mx.aol.com (mail_out_v34.13.) id i.3b.2d97ba7c (4262); Mon, 7 Oct 2002 10:13:23 -0400 (EDT) Message-ID: <3b.2d97ba7c.2ad2f083@aol.com> Date: Mon, 7 Oct 2002 10:13:23 EDT Subject: Re: Secondary feedback continued. Varian MMLC To: geason@ppmh.org Cc: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_3b.2d97ba7c.2ad2f083_boundary" X-Mailer: AOL 7.0 for Windows UK sub 10502 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Rtsolution@aol.com Date: Mon, 7 Oct 2002 10:13:23 EDT Subject: Re: Secondary feedback continued. Varian MMLC To: geason@ppmh.org Cc: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_3b.2d97ba7c.2ad2f083_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi Guy, I had this problem some months back and I have changed a lot of things BUT by changing the motor I/F interconnect (the multi layer $ 5,000 from the vendor) cure the problem. (lucky me my one was under warranty). Best luck RTSolution --part1_3b.2d97ba7c.2ad2f083_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi Guy,

    I had this problem some months back and I have changed a lot of things BUT by changing the motor I/F interconnect (the multi layer $ 5,000 from the vendor) cure the problem. (lucky me my one was under warranty).

    Best luck

    RTSolution     --part1_3b.2d97ba7c.2ad2f083_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 08 00:12:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17yg6p-00046c-00; Tue, 08 Oct 2002 00:12:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0CC1C1112F3; Mon, 7 Oct 2002 23:41:43 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA03265 for linac-eng-list; Mon, 7 Oct 2002 16:31:02 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu ([158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA03253 for ; Mon, 7 Oct 2002 16:31:00 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.17) with SMTP id M2002100717261312611 for ; Mon, 07 Oct 2002 17:26:13 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Mon, 07 Oct 2002 17:31:00 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Mon, 07 Oct 2002 17:30:28 -0400 From: "Michael Nordin" To: Subject: gun timing Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 07 Oct 2002 17:30:28 -0400 From: "Michael Nordin" To: Subject: gun timing Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Clinac-18 ser#105 I am unable to adjust the gun pulse for coincidence with the Fwd pwr pulse . Have changed the obvious gun delay pcb, gun amp pcb and the light pipe. Please some suggestions. Mike Nordin 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 08 14:51:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17ytpL-0007zN-00; Tue, 08 Oct 2002 14:51:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9D0671112F3; Tue, 8 Oct 2002 14:20:19 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA13506 for linac-eng-list; Tue, 8 Oct 2002 07:19:18 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm033.netvigator.com (imsm033.netvigator.com [218.102.23.103]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA13502 for ; Tue, 8 Oct 2002 07:19:16 -0500 (CDT) Received: (qmail 2220 invoked from network); 8 Oct 2002 12:19:00 -0000 Received: from pcd335058.netvigator.com (HELO kyeung) (203.218.125.58) by imsm033.netvigator.com with SMTP; 8 Oct 2002 12:19:00 -0000 Message-ID: <002501c26ec3$e2199280$b689fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Varain Ximatron X-ray tube data Date: Tue, 8 Oct 2002 20:11:50 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0022_01C26F06.F00A77E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Varain Ximatron X-ray tube data Date: Tue, 8 Oct 2002 20:11:50 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0022_01C26F06.F00A77E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Ximatron (A256 insert B130 Housing) The manual came with our Ximatron installation indicates the heat unit = of A256 is 445kJ, while the data of A256 from Varian (X-ray tube web = site) shows 300kJ. Could anyone advice the discrepancy between the two data? Is the insert = installed in Ximature "non-standard"?=20 Any suggestions are welcome as we are looking for a replacement x-ray = tube for our Ximatron. Thanks in advance. Kim Yeung ------=_NextPart_000_0022_01C26F06.F00A77E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
           =20         Ximatron (A256 insert B130=20 Housing)
     
    The manual came with our Ximatron = installation=20 indicates the heat unit of A256 is 445kJ, while the data of A256 from = Varian=20 (X-ray tube web site) shows 300kJ.
     
    Could anyone advice the discrepancy = between the two=20 data? Is  the insert installed in Ximature "non-standard"? =
     
    Any suggestions are welcome as we are = looking for a=20 replacement x-ray tube for our Ximatron.
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0022_01C26F06.F00A77E0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 08 17:02:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17yvsf-0000Ux-00; Tue, 08 Oct 2002 17:02:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0BF541112F3; Tue, 8 Oct 2002 16:31:52 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA16368 for linac-eng-list; Tue, 8 Oct 2002 09:24:57 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA16363 for ; Tue, 8 Oct 2002 09:24:55 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.17) with SMTP id M2002100810200713174 for ; Tue, 08 Oct 2002 10:20:07 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Tue, 08 Oct 2002 10:24:53 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Tue, 08 Oct 2002 10:24:32 -0400 From: "Michael Nordin" To: Subject: gun timing Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 08 Oct 2002 10:24:32 -0400 From: "Michael Nordin" To: Subject: gun timing Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net I need to be a little clearer. With the gun timing in the normal mode of klystron control I am able to adjust the timing with r39 on the gun delay pcb but am unable to adjust the gun pulse for coincidence. I get about half way there then to pot maxes out. I am presently running the machine with console triggers enabled and have adjusted the console gun delay for coincidence. Note: Clinac-18 does not have separate pots located in the cardrack for electrons and photons like the 1800s. There is one pot located on B3 in gun deck for this purpose. I have substituted a cable for the klystron I input thinking it might have caused some kinda delay but to not avail. The gun trigger delay schmatic idicates the pot should adjust for 12v to 7.5v at the comparater A3. Mine does this. I'm thinking the problem is with the klystron I waveform triggeing the comparater but don't know how to prove it. thanks Mike Nordin 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 09 01:42:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17z3zm-0001Gh-00; Wed, 09 Oct 2002 01:42:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 15B411112F4; Wed, 9 Oct 2002 01:11:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA27636 for linac-eng-list; Tue, 8 Oct 2002 18:10:31 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gondor.dpa.act.gov.au (gondor.dpa.act.gov.au [136.153.2.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA27632 for ; Tue, 8 Oct 2002 18:10:28 -0500 (CDT) Received: (from smap@localhost) by gondor.dpa.act.gov.au (8.11.1/8.11.1) id g98NALJ08448 for ; Wed, 9 Oct 2002 09:10:21 +1000 (EST) Received: from unknown(10.226.2.7) by gondor via smap (V5.5) id xma008387; Wed, 9 Oct 02 09:10:13 +1000 Received: by cal007.dpa.act.gov.au with Internet Mail Service (5.5.2653.19) id ; Wed, 9 Oct 2002 09:10:13 +1000 Message-ID: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D53@cal036.act.gov.au> From: "Caunt, Peter" To: "Linac Eng (E-mail)" Subject: Ximatron X-Ray Tube Date: Wed, 9 Oct 2002 09:10:12 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Caunt, Peter" To: "Linac Eng (E-mail)" Subject: Ximatron X-Ray Tube Date: Wed, 9 Oct 2002 09:10:12 +1000 Sender: owner-linac-eng@plato.aristotle.net Kim, The Anode heating/cooling curves for a current Varian G256 tube indicate 445kJ at approx 100%HS. However, for a B130 tube housing the maximum tube assembly heat content is 1480kJ (2000KHU). Maximum continuous heat dissipation for the B130 housing is 300HU/Sec without air circulator and 600HU/sec with air circulator. If you add a HE100 heat exchanger, with a 50 degree delta T, you get around 90kHU/minute. Hope this helps. Regards, Peter Caunt The Canberra Hospital, Canberra, Australia. >Hi Colleagues, > Ximatron (A256 insert B130 Housing) > >The manual came with our Ximatron installation indicates the heat unit of A256 is 445kJ, while the data of A256 from Varian (X-ray tube web site) shows 300kJ.> > >Could anyone advice the discrepancy between the two data? Is the insert installed in >Ximature "non-standard"? 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 09 02:43:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17z4xB-0001JV-00; Wed, 09 Oct 2002 02:43:57 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CBA501112F3; Wed, 9 Oct 2002 02:12:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA28973 for linac-eng-list; Tue, 8 Oct 2002 19:15:23 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id TAA28967 for ; Tue, 8 Oct 2002 19:15:21 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.17) with SMTP id M2002100820103413974 for ; Tue, 08 Oct 2002 20:10:34 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Tue, 08 Oct 2002 20:15:20 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Tue, 08 Oct 2002 20:14:50 -0400 From: "Michael Nordin" To: Subject: gun timing Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 08 Oct 2002 20:14:50 -0400 From: "Michael Nordin" To: Subject: gun timing Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net the Clinac -18 is a multi-energy machine with a single photon and five electron energies with one active gun timing adjustment. If the gun timing mode selected is klystron then the pot on the the gunpulse delay pcb is the timing adjustment. If console gun triggers are in enabled the gundelay adjustment in the console is the timing adjustment. With only one or the other adjustment active for all energies to peak gun timing for a particular enery may degrade the rated output on the other energies. I believe that is why when Varian built the 1800 they incorporated separate gun delay adjusts for photons and electrons and if my memory serves me the Clinac 2500 had separate pots for highX , lowX and electrons. The gun pulse timing for the Clinac -18 should be centered on the FWD power pulse I think the procedure actully states the gun pulse should be centered on klystron I but Fwd pwr just seem to make more sense to me. So for the Clinac -18 coincidence seems proper with gun drive being adjusted for a peak of output. This Clinac -18 in particular has operated in the klystron miode for 20 years but somthing has changed and the klystron timing mode can be neither adjusted for coincidece or peak output. The klystron delay adjustment will allow the gun pulse to coinside with fwd pwr appox 2usec. making a significant reduction in output as the target pulse is approx.2usec. Once again the klystron gun delay does adjust but not enough. The machine is running with console gun triggers and is clinical but my question remains with a new gun delay, gun pulse amp and a different (not new lightpipe) installed the machine exhibits the same symtoms where to go next? Thanks Mike Nordin 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 09 11:17:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zCxt-00030g-00; Wed, 09 Oct 2002 11:17:13 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 896EE1112F4 for ; Wed, 9 Oct 2002 10:46:04 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNGHQB4GJ48XIKCT@med.uu.nl> for kok@radth.med.uu.nl; Wed, 9 Oct 2002 10:54:07 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNG1N7RN768XHUTR@med.uu.nl> for kok@radth.med.uu.nl; Wed, 09 Oct 2002 02:47:29 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA27636 for linac-eng-list; Tue, 08 Oct 2002 18:10:31 -0500 (CDT) Received: from gondor.dpa.act.gov.au (gondor.dpa.act.gov.au [136.153.2.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA27632 for ; Tue, 08 Oct 2002 18:10:28 -0500 (CDT) Received: (from smap@localhost) by gondor.dpa.act.gov.au (8.11.1/8.11.1) id g98NALJ08448 for ; Wed, 09 Oct 2002 09:10:21 +1000 (EST) Received: from unknown(10.226.2.7) by gondor via smap (V5.5) id xma008387; Wed, 09 Oct 2002 09:10:13 +1000 Received: by cal007.dpa.act.gov.au with Internet Mail Service (5.5.2653.19) id ; Wed, 09 Oct 2002 09:10:13 +1000 Date: Wed, 09 Oct 2002 09:10:12 +1000 From: "Caunt, Peter" Subject: Ximatron X-Ray Tube Sender: owner-linac-eng@plato.aristotle.net To: "Linac Eng (E-mail)" Message-id: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D53@cal036.act.gov.au> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 09 Oct 2002 09:10:12 +1000 From: "Caunt, Peter" Subject: Ximatron X-Ray Tube Sender: owner-linac-eng@plato.aristotle.net To: "Linac Eng (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Kim, The Anode heating/cooling curves for a current Varian G256 tube indicate 445kJ at approx 100%HS. However, for a B130 tube housing the maximum tube assembly heat content is 1480kJ (2000KHU). Maximum continuous heat dissipation for the B130 housing is 300HU/Sec without air circulator and 600HU/sec with air circulator. If you add a HE100 heat exchanger, with a 50 degree delta T, you get around 90kHU/minute. Hope this helps. Regards, Peter Caunt The Canberra Hospital, Canberra, Australia. >Hi Colleagues, > Ximatron (A256 insert B130 Housing) > >The manual came with our Ximatron installation indicates the heat unit of A256 is 445kJ, while the data of A256 from Varian (X-ray tube web site) shows 300kJ.> > >Could anyone advice the discrepancy between the two data? Is the insert installed in >Ximature "non-standard"? 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 09 11:17:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zCy4-000317-00; Wed, 09 Oct 2002 11:17:24 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7DB391112F5 for ; Wed, 9 Oct 2002 10:46:15 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNGHR00T6O8XFATY@med.uu.nl> for kok@radth.med.uu.nl; Wed, 9 Oct 2002 10:57:56 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNG3CKYLDK8XHUTR@med.uu.nl> for kok@radth.med.uu.nl; Wed, 09 Oct 2002 03:36:10 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA28973 for linac-eng-list; Tue, 08 Oct 2002 19:15:23 -0500 (CDT) Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id TAA28967 for ; Tue, 08 Oct 2002 19:15:21 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.17) with SMTP id M2002100820103413974 for ; Tue, 08 Oct 2002 20:10:34 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Tue, 08 Oct 2002 20:15:20 -0400 Date: Tue, 08 Oct 2002 20:14:50 -0400 From: Michael Nordin Subject: gun timing Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.2 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 08 Oct 2002 20:14:50 -0400 From: Michael Nordin Subject: gun timing Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f the Clinac -18 is a multi-energy machine with a single photon and five electron energies with one active gun timing adjustment. If the gun timing mode selected is klystron then the pot on the the gunpulse delay pcb is the timing adjustment. If console gun triggers are in enabled the gundelay adjustment in the console is the timing adjustment. With only one or the other adjustment active for all energies to peak gun timing for a particular enery may degrade the rated output on the other energies. I believe that is why when Varian built the 1800 they incorporated separate gun delay adjusts for photons and electrons and if my memory serves me the Clinac 2500 had separate pots for highX , lowX and electrons. The gun pulse timing for the Clinac -18 should be centered on the FWD power pulse I think the procedure actully states the gun pulse should be centered on klystron I but Fwd pwr just seem to make more sense to me. So for the Clinac -18 coincidence seems proper with gun drive being adjusted for a peak of output. This Clinac -18 in particular has operated in the klystron miode for 20 years but somthing has changed and the klystron timing mode can be neither adjusted for coincidece or peak output. The klystron delay adjustment will allow the gun pulse to coinside with fwd pwr appox 2usec. making a significant reduction in output as the target pulse is approx.2usec. Once again the klystron gun delay does adjust but not enough. The machine is running with console gun triggers and is clinical but my question remains with a new gun delay, gun pulse amp and a different (not new lightpipe) installed the machine exhibits the same symtoms where to go next? Thanks Mike Nordin 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 09 20:41:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zLm2-0008DJ-00; Wed, 09 Oct 2002 20:41:34 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2A1291112F3; Wed, 9 Oct 2002 20:10:13 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA12091 for linac-eng-list; Wed, 9 Oct 2002 13:13:06 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA12082 for ; Wed, 9 Oct 2002 13:12:52 -0500 (CDT) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id g99IClrF088232 for ; Wed, 9 Oct 2002 14:12:47 -0400 Message-ID: <3DA4719F.7050008@hsc.vcu.edu> Date: Wed, 09 Oct 2002 14:12:47 -0400 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: Picker AcQsim Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 09 Oct 2002 14:12:47 -0400 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: "linac-eng@plato.aristotle.net" Subject: Picker AcQsim Sender: owner-linac-eng@plato.aristotle.net I have a Picker AcQsim and we pay for service, no contract. I was told by Picker/Marconi/Philips service rep that they do not leave any paperwork or fill out any paperwork after a PMI. My question is how do they determine if the machines meets Manuf specs? Is there something in the software that records tube data? I find this odd because I have been paying for these, (at Philips rates) and all I get is a bill that they were here. Chris Bartee 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 09 21:01:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zM5Y-0008FX-00; Wed, 09 Oct 2002 21:01:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 583991112F3; Wed, 9 Oct 2002 20:30:23 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA12580 for linac-eng-list; Wed, 9 Oct 2002 13:39:56 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc.on.ca ([207.35.220.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA12576 for ; Wed, 9 Oct 2002 13:39:52 -0500 (CDT) Received: by KRCCMAIL with Internet Mail Service (5.5.2656.59) id <41PZABFV>; Wed, 9 Oct 2002 14:42:37 -0400 Message-ID: From: "Feuerstake, Tom" To: linac-eng@plato.aristotle.net Subject: RE: Picker AcQsim Date: Wed, 9 Oct 2002 14:42:30 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C26FC3.9F3E95E0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Feuerstake, Tom" To: linac-eng@plato.aristotle.net Subject: RE: Picker AcQsim Date: Wed, 9 Oct 2002 14:42:30 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C26FC3.9F3E95E0 Content-Type: text/plain; charset="iso-8859-1" As far as I know, it's a legal requirement under your "x-ray license to operate" that you must show that PMI's are done, and records are to be kept at your centre. You mention that they don't even fill out any paperwork? I would challenge that. Around here you must show your paperwork, otherwise in the eyes of the licenser, you didn't do the job. This may only apply to Canada, but you should check the situation in your region. If you're paying money to have it done, you should get a copy of the records. Tom Feuerstake Kingston Regional Cancer Centre - My opinion only, not representing those of my employer or anyone else who even remotely cares, etc, etc... -----Original Message----- From: Christopher L. Bartee [mailto:clbartee@hsc.vcu.edu] Sent: October 9, 2002 2:13 PM To: linac-eng@plato.aristotle.net Subject: Picker AcQsim I have a Picker AcQsim and we pay for service, no contract. I was told by Picker/Marconi/Philips service rep that they do not leave any paperwork or fill out any paperwork after a PMI. My question is how do they determine if the machines meets Manuf specs? Is there something in the software that records tube data? I find this odd because I have been paying for these, (at Philips rates) and all I get is a bill that they were here. Chris Bartee ------_=_NextPart_001_01C26FC3.9F3E95E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Picker AcQsim

    As far as I know, it's a legal requirement under your = "x-ray license to operate" that you must show that PMI's are = done, and records are to be kept at your centre. You mention that they = don't even fill out any paperwork? I would challenge that. Around here = you must show your paperwork, otherwise in the eyes of the licenser, = you didn't do the job. This may only apply to Canada, but you should = check the situation in your region. If you're paying money to have it = done, you should get a copy of the records.

    Tom Feuerstake
    Kingston Regional Cancer Centre

    - My opinion only, not representing those of my = employer or anyone else who even remotely cares, etc, etc...


     -----Original Message-----
    From:   Christopher L. Bartee [mailto:clbartee@hsc.vcu.edu] =
    Sent:   October 9, 2002 2:13 PM
    To:     = linac-eng@plato.aristotle.net
    Subject:        = Picker AcQsim


    I have a Picker AcQsim and we pay for service, no = contract. I was told
    by Picker/Marconi/Philips service rep that they do = not leave any
    paperwork or fill out any paperwork after a PMI. My = question is how do
    they determine if the machines meets Manuf specs? Is = there something in
    the software that records tube data? I find this odd = because I have been
    paying for these, (at Philips rates) and all I get = is a bill that they
    were here.

    Chris Bartee

    ------_=_NextPart_001_01C26FC3.9F3E95E0-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 10 09:14:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zXWh-0001DW-00; Thu, 10 Oct 2002 09:14:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AAB001112F4; Thu, 10 Oct 2002 08:42:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA23519 for linac-eng-list; Thu, 10 Oct 2002 01:48:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA23515 for ; Thu, 10 Oct 2002 01:48:43 -0500 (CDT) Received: by LT5 with Internet Mail Service (5.5.2653.19) id <4T4QQAS2>; Thu, 10 Oct 2002 08:48:11 +0200 Message-ID: <9D894AB8D748D3118A1800508B073AE6022718ED@CLV4> From: Larsson Christer MFT CLV To: "'linac-eng@plato.aristotle.net'" Subject: Picker ACQ-Sim Date: Thu, 10 Oct 2002 08:48:11 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA23516 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Larsson Christer MFT CLV To: "'linac-eng@plato.aristotle.net'" Subject: Picker ACQ-Sim Date: Thu, 10 Oct 2002 08:48:11 +0200 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA23516 Sender: owner-linac-eng@plato.aristotle.net Dear Chris, It´s an interesting problem you raise here. We have an UltraZ Picker CT with ACQ-Sim Software för Oncology use and for now, we do have a contract on 50/50 basis and we do get PMI-protocols, but of course there could be changes in the future and you still want the protocols which you pay for and should have the full right to. One other thing is, that without a contract you cannot do a full PMI yourself, as they will probably not give you the machine access codes for Calibrations- and Test files. Further, if you have attended a factory training course, you have most of the material on CD:s which are on code with a 3 months expiration periode. What happens if you decide not to have any contract, will you still get access to your course material, for a course you paid for ? (You could print all pages during the periode when you have access, but it´s thousands of pages.) So, it seems that in many ways, an equipment you bought and paid for, is still in the hands of the manufacturer. One solution is to try to cover these aspects in the contract and fully bring them out in the air, prior to purchasing the equipment, and let this be an important matter when you evaluate different offers. Just some apects, hope this will be more discussed. Christer Larsson Central Hospital Biomedical Physics and Engineering Dept. Vaxjo/ Sweden 1,, X-Coding-System: iso-8859-1-unix Mail-from: From Alex.Rozenblat@tsrcc.on.ca Mon Sep 30 18:09:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17w370-000390-00; Mon, 30 Sep 2002 18:09:34 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id D14021112F1 for ; Mon, 30 Sep 2002 17:42:11 +0200 (METDST) Received: from bajor.cancercare.on.ca ([142.76.240.40]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KN4CRSVQWQ8XDMC9@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Sep 2002 17:56:15 +0200 Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Sep 2002 12:03:22 -0400 Content-return: allowed Date: Mon, 30 Sep 2002 12:03:17 -0400 From: "Rozenblat, Alex" Subject: RE: new version linac FAQ list + Dosimetry temp. on Siemens linac s To: 'Jan Kok' , linac-eng@plato.aristotle.net Cc: 'linac' Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" *** EOOH *** Content-return: allowed Date: Mon, 30 Sep 2002 12:03:17 -0400 From: "Rozenblat, Alex" Subject: RE: new version linac FAQ list + Dosimetry temp. on Siemens linac s To: 'Jan Kok' , linac-eng@plato.aristotle.net Cc: 'linac' Thank you very much, Jan for your consistent nonsatisfaction about what you have achieved already. The work you did to put together lots of helpful hints is amazing and undoubtfully deserves big applause. I am wondering why nobody so far put together similar site for Siemens linacs. If someone asks me this same question - I have got a ready answer - I am busy (we have 12 linacs already in our Centre and getting one more Primus very soon on top of all other stuff)- looks like lame excuse but it's true (If seriously, I am too dumb/old to learn HTML). I know we have (I am very proud to say "WE") very smart and eager guys on the list to implement this - no doubt, global - task. So, what's the problem? E? Just don't tell me all of you are very busy :-)). Andrew Frolov - where are you, buddy? On a learning note: I found very interesting behaviour of Siemens linacs when I am doing temperature calibration of Dosimetry channels. I need your opinion or observations on this one. To calibrate temp. sensors I put Gantry at 180, take Gantry cover off and request Electron beam and when Electron chamber is "exposed" I put inside head a thermocouple probe. I prefer to touch by probe a flange of the chamber because in my opinion that gives me more accurate and stable readout. First question: Should I measure temperature of air around or of the flange of the chamber? From physics point of view. Temperatures are different - I checked. Now, according to my measurement I adjust corresponding pots observing Temp. compensation page in Service (sorry, for such detailed description). Satisfied, I put Gantry cover back and ... what's the ...! I can see that readback on Temp. compensation page begins to change very fast until it reaches absolutely different point. I take the cover off - Temperature (readback) changes back. By the way, I found a similar correlation between Dosimetry temp. readback and Gantry position as well, not so obviously expressed though. My humble understanding: there is a Dosimetry fan, which blows air into Dosimetry card cage; depending on the cover being on or off the air flow changes direction that causes in its turn some electronics and may be even sensors themselves to cool/heat down/up. Second question: is it so or something else is involved and I am missing it? It's obvious to me that to get proper calibration of the sensors I should do it when linac is put together (the cover)but then, tell me please, how can I reach for pots? Enigma. The last - and most significant - question that could eliminate all the previous ones: How critical is to calibrate them sensors accurately if I know that by adjusting Dose Gain 1 or DRCV I can achieve any output of linac I want including correcting/masking any inaccuracy I introduced by wrong Temp. sensors calibration? Different topic: I have to apologise for not thanking back all the guys who sent me advice about sharp "whip-crack kind of sound" we experienced on one of our Mevatrons (magnetron driven). We had done lots of stuff but main, I guess, success we got when we changed black HV cable from pulse trans (in dog house) to magnetron even though we did not find any obvious signs of damage on it. "Breathing" problem is still under investigation. It's like there is no way to stop me when I reach for keyboard of my computer! Sincerely yours, Alex Rozenblat, TSRCC, Toronto -----Original Message----- From: Jan Kok [mailto:kok@radth.med.uu.nl] Sent: 30 September 2002 08:03 To: linac-eng@plato.aristotle.net Subject: new version linac FAQ list Dear colleagues, The 13th version of the Internet page: Frequently Asked Questions: Elekta SL25 series Linear~Accelerators and accessories. In now available on: http://www.isi.uu.nl/radiotherapy/linaceng/linacfaq/faq.html The most important new item is the library of this Linac Engineer Mailing List. (You can find it at the bottom of the table of contents.) Regards, Jan Kok Linac engineer Dept. of Radiotherapy University Medical Center Utrecht the Netherlands 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 10 11:24:55 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zZYt-0003fE-00; Thu, 10 Oct 2002 11:24:55 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 60C0F1112F4 for ; Thu, 10 Oct 2002 10:53:19 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNHXRDCN408XIL97@med.uu.nl> for kok@radth.med.uu.nl; Thu, 10 Oct 2002 11:17:55 +0200 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNHXRABA7Y8XG97A@med.uu.nl> for kok@radth.med.uu.nl; Thu, 10 Oct 2002 11:17:49 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA23519 for linac-eng-list; Thu, 10 Oct 2002 01:48:46 -0500 (CDT) Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA23515 for ; Thu, 10 Oct 2002 01:48:43 -0500 (CDT) Received: by LT5 with Internet Mail Service (5.5.2653.19) id <4T4QQAS2>; Thu, 10 Oct 2002 08:48:11 +0200 Date: Thu, 10 Oct 2002 08:48:11 +0200 From: Larsson Christer MFT CLV Subject: Picker ACQ-Sim Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" Message-id: <9D894AB8D748D3118A1800508B073AE6022718ED@CLV4> MIME-version: 1.0 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA23516 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 10 Oct 2002 08:48:11 +0200 From: Larsson Christer MFT CLV Subject: Picker ACQ-Sim Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA23516 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Dear Chris, It´s an interesting problem you raise here. We have an UltraZ Picker CT with ACQ-Sim Software för Oncology use and for now, we do have a contract on 50/50 basis and we do get PMI-protocols, but of course there could be changes in the future and you still want the protocols which you pay for and should have the full right to. One other thing is, that without a contract you cannot do a full PMI yourself, as they will probably not give you the machine access codes for Calibrations- and Test files. Further, if you have attended a factory training course, you have most of the material on CD:s which are on code with a 3 months expiration periode. What happens if you decide not to have any contract, will you still get access to your course material, for a course you paid for ? (You could print all pages during the periode when you have access, but it´s thousands of pages.) So, it seems that in many ways, an equipment you bought and paid for, is still in the hands of the manufacturer. One solution is to try to cover these aspects in the contract and fully bring them out in the air, prior to purchasing the equipment, and let this be an important matter when you evaluate different offers. Just some apects, hope this will be more discussed. Christer Larsson Central Hospital Biomedical Physics and Engineering Dept. Vaxjo/ Sweden 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 10 15:38:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zdWe-00071R-00; Thu, 10 Oct 2002 15:38:52 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 522A91112F1; Thu, 10 Oct 2002 15:07:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA28028 for linac-eng-list; Thu, 10 Oct 2002 08:07:42 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchvs2.medctr.ad.wfubmc.edu [152.11.200.73]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA28024 for ; Thu, 10 Oct 2002 08:07:40 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: Picker AcQsim Date: Thu, 10 Oct 2002 09:07:10 -0400 Message-ID: <9AEEF1FB6254224AA355ED285F849165038702@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Picker AcQsim Thread-Index: AcJvy7aWKVmF1t5ySZicMpe21sMkUAAiPRrA From: "Tim Cullen" To: "Christopher L. Bartee" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA28025 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Content-Class: urn:content-classes:message Subject: RE: Picker AcQsim Date: Thu, 10 Oct 2002 09:07:10 -0400 Thread-Topic: Picker AcQsim Thread-Index: AcJvy7aWKVmF1t5ySZicMpe21sMkUAAiPRrA From: "Tim Cullen" To: "Christopher L. Bartee" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA28025 Sender: owner-linac-eng@plato.aristotle.net Chris, The performance test scan data can be found under 'showarch' on the system disk. I would want a field service report left on site no matter what though. Tim -----Original Message----- From: Christopher L. Bartee [mailto:clbartee@hsc.vcu.edu] Sent: Wednesday, October 09, 2002 2:13 PM To: linac-eng@plato.aristotle.net Subject: Picker AcQsim I have a Picker AcQsim and we pay for service, no contract. I was told by Picker/Marconi/Philips service rep that they do not leave any paperwork or fill out any paperwork after a PMI. My question is how do they determine if the machines meets Manuf specs? Is there something in the software that records tube data? I find this odd because I have been paying for these, (at Philips rates) and all I get is a bill that they were here. Chris Bartee 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 11 14:09:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 17zybT-0004dB-00; Fri, 11 Oct 2002 14:09:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6DA151112F2; Fri, 11 Oct 2002 13:37:07 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA17834 for linac-eng-list; Fri, 11 Oct 2002 06:40:46 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA17830 for ; Fri, 11 Oct 2002 06:40:44 -0500 (CDT) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 17zy98-0002Cv-00; Fri, 11 Oct 2002 12:39:58 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D908C0F0026333B for linac-eng@plato.aristotle.net; Fri, 11 Oct 2002 12:39:58 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-1 6.5.026) id 3DA58C3B0004656A for linac-eng@plato.aristotle.net; Fri, 11 Oct 2002 12:39:58 +0100 Received: from LTH-MTA by smtp.leedsth.nhs.uk with Novell_GroupWise; Fri, 11 Oct 2002 11:25:11 +0100 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Fri, 11 Oct 2002 11:18:39 +0100 From: "Chris Forrest" To: Subject: Elekta SL Reverse Diode Overloads Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA17831 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 11 Oct 2002 11:18:39 +0100 From: "Chris Forrest" To: Subject: Elekta SL Reverse Diode Overloads Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA17831 Sender: owner-linac-eng@plato.aristotle.net Hi Folks, I'd like some feedback on Reverse Diode Overload problems on SL linacs fitted with the EMC modulator (the one with covers and fibre optics) Specifically, 1) Has anybody had to replace a Magnetron on an EMC modulator because of Reverse Diode overloads (rather than other reasons such as low o/p , tuner probs etc). 2) Has anybody experienced failure of the Modulator Isolation PCB either due to 1) above or for any other reason. Thanks in anticipation of your replies. Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 11 17:03:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1801Jr-00060i-00; Fri, 11 Oct 2002 17:03:15 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0C3111112F4 for ; Fri, 11 Oct 2002 16:37:24 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNJO3R95A88XHK02@med.uu.nl> for kok@radth.med.uu.nl; Fri, 11 Oct 2002 17:02:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNJO3QH8C48XGM7T@med.uu.nl> for kok@radth.med.uu.nl; Fri, 11 Oct 2002 17:02:19 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA19570 for linac-eng-list; Fri, 11 Oct 2002 08:50:59 -0500 (CDT) Received: from curlew.cs.man.ac.uk (noplay@curlew.cs.man.ac.uk [130.88.13.7]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA19566 for ; Fri, 11 Oct 2002 08:50:57 -0500 (CDT) Received: from pntserv2.cr.man.ac.uk ([130.88.240.2]) by curlew.cs.man.ac.uk with esmtp (Exim 2.05 #6) id 1800Bs-000MPB-00; Fri, 11 Oct 2002 14:50:56 +0100 Received: by pntserv2.cr.man.ac.uk with Internet Mail Service (5.5.2653.19) id ; Fri, 11 Oct 2002 14:52:47 +0100 Date: Fri, 11 Oct 2002 14:52:46 +0100 From: Colin McDonagh Subject: RE: Elekta SL Reverse Diode Overloads Sender: owner-linac-eng@plato.aristotle.net To: 'Chris Forrest' Cc: "'linac-eng@plato.aristotle.net'" Message-id: <015E47432D22D2119D3700A02455A4778AF744@pntserv2.cr.man.ac.uk> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 11 Oct 2002 14:52:46 +0100 From: Colin McDonagh Subject: RE: Elekta SL Reverse Diode Overloads Sender: owner-linac-eng@plato.aristotle.net To: 'Chris Forrest' Cc: "'linac-eng@plato.aristotle.net'" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hi Chris, We had this on an older machine (open modulator), when the mag filament was intermittantly going open circuit. This caused the pulse to be reflected back (in phase) onto the PFN, so that on the next charge cycle the PNF volts could be twice as high as normal. When this extra hi-voltage was re-applied to the maggy, it would then crack over thus producing a Reverse Diode Overload. We had similar problems on a new EMC modulator, which produced CrowBar Inhibit plus sparking. This was also due to an O/C mag filament, but it also managed to stuff R15 on the modulator isolation PCB, with loss of output on Opto 2. Hope this is of some use. Regards Colin. -----Original Message----- From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] Sent: 11 October 2002 11:19 To: linac-eng@plato.aristotle.net Subject: Elekta SL Reverse Diode Overloads Hi Folks, I'd like some feedback on Reverse Diode Overload problems on SL linacs fitted with the EMC modulator (the one with covers and fibre optics) Specifically, 1) Has anybody had to replace a Magnetron on an EMC modulator because of Reverse Diode overloads (rather than other reasons such as low o/p , tuner probs etc). 2) Has anybody experienced failure of the Modulator Isolation PCB either due to 1) above or for any other reason. Thanks in anticipation of your replies. Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 11 18:15:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1802RX-0006TK-00; Fri, 11 Oct 2002 18:15:15 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5047E1112F2; Fri, 11 Oct 2002 17:49:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA23651 for linac-eng-list; Fri, 11 Oct 2002 10:53:51 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep01.biz.rr.com (fep01.biz.rr.com [24.30.200.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA23647 for ; Fri, 11 Oct 2002 10:53:49 -0500 (CDT) Received: from pent4 ([24.174.72.124]) by fep01.biz.rr.com with ESMTP id <20021011155349.OJMV1586.fep01.biz.rr.com@pent4> for ; Fri, 11 Oct 2002 11:53:49 -0400 From: "Thomas McCausland" To: "'linac-eng@plato.aristotle.net'" Date: Fri, 11 Oct 2002 10:53:45 -0500 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: RE: Elekta SL Reverse Diode Overloads Reply-To: acceltek@acceltekservice.com Message-ID: <3DA6ADB9.23498.2B12CB@localhost> In-reply-to: <015E47432D22D2119D3700A02455A4778AF744@pntserv2.cr.man.ac.uk> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: "'linac-eng@plato.aristotle.net'" Date: Fri, 11 Oct 2002 10:53:45 -0500 Subject: RE: Elekta SL Reverse Diode Overloads Reply-To: acceltek@acceltekservice.com In-reply-to: <015E47432D22D2119D3700A02455A4778AF744@pntserv2.cr.man.ac.uk> Sender: owner-linac-eng@plato.aristotle.net From: Colin McDonagh To: "'Chris Forrest'" Copies to: "'linac-eng@plato.aristotle.net'" Subject: RE: Elekta SL Reverse Diode Overloads Date sent: Fri, 11 Oct 2002 14:52:46 +0100 > Hi Chris, > > We had this on an older machine (open modulator), when the mag filament was > intermittantly going open circuit. This caused the pulse to be reflected > back (in phase) onto the PFN, so that on the next charge cycle the PNF volts > could be twice as high as normal. When this extra hi-voltage was re-applied > to the maggy, it would then crack over thus producing a Reverse Diode > Overload. > > We had similar problems on a new EMC modulator, which produced CrowBar > Inhibit plus sparking. This was also due to an O/C mag filament, but it also > managed to stuff R15 on the modulator isolation PCB, with loss of output on > Opto 2. > ------------------------ SNIP -------------------------------------- I'm curious what type and brand of magnetron the Elekta uses. We ran into a problem on a Siemens machine last year where the magnetron filament was shorting when it was pulsed at a high rep- rate....ie..6 MV photons. In other lower rep-rate modes it was fine. I'd never run into that before. We (eventually) got a rebated credit on the maggie from Marconi. Thomas W. McCausland AccelTek Inc. 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 11 23:17:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1807A4-00078U-00; Fri, 11 Oct 2002 23:17:32 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CEDA51112F2; Fri, 11 Oct 2002 22:51:32 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA19169 for linac-eng-list; Fri, 11 Oct 2002 15:54:54 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA19141 for ; Fri, 11 Oct 2002 15:54:51 -0500 (CDT) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id g9BKsKK19303 for ; Fri, 11 Oct 2002 16:54:20 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C4F.0072D1F0 ; Fri, 11 Oct 2002 16:54:08 -0400 X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Message-ID: <85256C4F.0072D117.00@mail.lrcc.on.ca> Date: Fri, 11 Oct 2002 16:54:05 -0400 Subject: Varian Mark 2 MLC Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: linac-eng@plato.aristotle.net Date: Fri, 11 Oct 2002 16:54:05 -0400 Subject: Varian Mark 2 MLC Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 12 02:24:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 180A5J-0007VC-00; Sat, 12 Oct 2002 02:24:49 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 37A0C1112F3 for ; Sat, 12 Oct 2002 01:58:43 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNK5DAGXYO8XC67C@med.uu.nl> for kok@radth.med.uu.nl; Sat, 12 Oct 2002 01:49:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNJSRX2HZS8XJN2Q@med.uu.nl> for kok@radth.med.uu.nl; Fri, 11 Oct 2002 19:16:21 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA23651 for linac-eng-list; Fri, 11 Oct 2002 10:53:51 -0500 (CDT) Received: from fep01.biz.rr.com (fep01.biz.rr.com [24.30.200.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA23647 for ; Fri, 11 Oct 2002 10:53:49 -0500 (CDT) Received: from pent4 ([24.174.72.124]) by fep01.biz.rr.com with ESMTP id <20021011155349.OJMV1586.fep01.biz.rr.com@pent4> for ; Fri, 11 Oct 2002 11:53:49 -0400 Date: Fri, 11 Oct 2002 10:53:45 -0500 From: Thomas McCausland Subject: RE: Elekta SL Reverse Diode Overloads In-reply-to: <015E47432D22D2119D3700A02455A4778AF744@pntserv2.cr.man.ac.uk> Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" Reply-To: acceltek@acceltekservice.com Message-id: <3DA6ADB9.23498.2B12CB@localhost> MIME-version: 1.0 X-Mailer: Pegasus Mail for Win32 (v3.12c) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 11 Oct 2002 10:53:45 -0500 From: Thomas McCausland Subject: RE: Elekta SL Reverse Diode Overloads In-reply-to: <015E47432D22D2119D3700A02455A4778AF744@pntserv2.cr.man.ac.uk> Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" Reply-To: acceltek@acceltekservice.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Colin McDonagh To: "'Chris Forrest'" Copies to: "'linac-eng@plato.aristotle.net'" Subject: RE: Elekta SL Reverse Diode Overloads Date sent: Fri, 11 Oct 2002 14:52:46 +0100 > Hi Chris, > > We had this on an older machine (open modulator), when the mag filament was > intermittantly going open circuit. This caused the pulse to be reflected > back (in phase) onto the PFN, so that on the next charge cycle the PNF volts > could be twice as high as normal. When this extra hi-voltage was re-applied > to the maggy, it would then crack over thus producing a Reverse Diode > Overload. > > We had similar problems on a new EMC modulator, which produced CrowBar > Inhibit plus sparking. This was also due to an O/C mag filament, but it also > managed to stuff R15 on the modulator isolation PCB, with loss of output on > Opto 2. > ------------------------ SNIP -------------------------------------- I'm curious what type and brand of magnetron the Elekta uses. We ran into a problem on a Siemens machine last year where the magnetron filament was shorting when it was pulsed at a high rep- rate....ie..6 MV photons. In other lower rep-rate modes it was fine. I'd never run into that before. We (eventually) got a rebated credit on the maggie from Marconi. Thomas W. McCausland AccelTek Inc. 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Oct 13 17:04:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 180kHh-0004nJ-00; Sun, 13 Oct 2002 17:04:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8569E1112F2; Sun, 13 Oct 2002 16:37:09 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA19249 for linac-eng-list; Sun, 13 Oct 2002 09:40:27 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from navgate.mcg.edu (navgate.mcg.edu [158.93.190.15]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA19245 for ; Sun, 13 Oct 2002 09:40:26 -0500 (CDT) Received: from mail.mcg.edu ([158.93.1.5]) by navgate.mcg.edu (NAVGW 2.5.2.17) with SMTP id M2002101310353213463 for ; Sun, 13 Oct 2002 10:35:32 -0400 Received: from THEHUB-MTA by mail.mcg.edu with Novell_GroupWise; Sun, 13 Oct 2002 10:40:21 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Sun, 13 Oct 2002 10:39:46 -0400 From: "Michael Nordin" To: Subject: gun timing Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 13 Oct 2002 10:39:46 -0400 From: "Michael Nordin" To: Subject: gun timing Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Lightpipe it was! Thanks Mike Nordin 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Oct 14 10:05:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1810EF-0007cK-00; Mon, 14 Oct 2002 10:05:31 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5842B1112F2; Mon, 14 Oct 2002 09:38:23 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id CAA28509 for linac-eng-list; Mon, 14 Oct 2002 02:42:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id CAA28505 for ; Mon, 14 Oct 2002 02:42:25 -0500 (CDT) From: terry.kearey@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Mon, 14 Oct 2002 9:42:12 +0200 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id <4TVKFKWR>; Mon, 14 Oct 2002 09:42:05 +0200 Message-ID: <735AFCF366C6D211B1FF00A0C9EA2A4D0467A7C9@exchange-5.orebroll.se> To: linac-eng@plato.aristotle.net Subject: SV: Varian Mark 2 MLC Date: Mon, 14 Oct 2002 09:42:02 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id CAA28506 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terry.kearey@orebroll.se To: linac-eng@plato.aristotle.net Subject: SV: Varian Mark 2 MLC Date: Mon, 14 Oct 2002 09:42:02 +0200 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id CAA28506 Sender: owner-linac-eng@plato.aristotle.net Hi Randy, Yes, the second pass is timed more critically. Generally we've found that friction problems will show up here at least initially until they get so bad that it won't pass the first run either. The motor currents usually show friction problems but it can be difficult to see if the problem is near the crash pads. You don't have long to measure before it gets past this point. It can also be an idea to check it first thing in the morning as they can sometimes loosen up after a few runs. //Tel. -----Ursprungligt meddelande----- Från: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Skickat: den 11 oktober 2002 22:54 Till: linac-eng@plato.aristotle.net Ämne: Varian Mark 2 MLC Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Oct 14 12:59:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1812wE-0001kQ-00; Mon, 14 Oct 2002 12:59:06 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C90571112F2; Mon, 14 Oct 2002 12:31:55 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id FAA00855 for linac-eng-list; Mon, 14 Oct 2002 05:38:12 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA00851 for ; Mon, 14 Oct 2002 05:38:10 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 1812X5-0005Re-00; Mon, 14 Oct 2002 11:33:07 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D908C0F00293043 for linac-eng@plato.aristotle.net; Mon, 14 Oct 2002 11:33:07 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-4 6.5.026) (authenticated as smtp_esmtptest_nhs_uk@es2002.nhs.uk) id 3DA994310001E754 for linac-eng@plato.aristotle.net; Mon, 14 Oct 2002 11:33:07 +0100 Received: from LTH-MTA by smtp.leedsth.nhs.uk with Novell_GroupWise; Mon, 14 Oct 2002 11:36:25 +0100 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Mon, 14 Oct 2002 11:36:11 +0100 From: "Chris Forrest" To: Subject: Elekta SL Reverse Diode Overloads - Update Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA00852 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 14 Oct 2002 11:36:11 +0100 From: "Chris Forrest" To: Subject: Elekta SL Reverse Diode Overloads - Update Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA00852 Sender: owner-linac-eng@plato.aristotle.net Thanks for all the comments regarding the above. I thought perhaps I'd better fill you in with a bit more info that will perhaps explain why I asked the questions I did. We had a problem, that is either fixed or has gone away for now, where we had RDOL faults when an otherwise healthy 2 year old SL was run for the first time in HP mode by Elekta during the addition of Electron modality. A spate of RDOL faults resulted in the Magnetron being replaced and various subsequent failures of IC3 and IC7 on the Modulator Isolation pcb. It has to be said Elekta left site with the machine in a working condition but RDOLs started occuring again shortly afterwards and finally popped IC3 again. We replaced the Mod Iso pcb in its entirety. The machine settled down at this point and we used the opportunity to check Mag I for arcing, PFN matching & the RDOL scope o/p from IC7 (5 mins later IC7 popped!) Replaced pcb - machine OK. My suspicions (and my own opinions...) are that perhaps original Maggie (E2V M5028/M6363 for Thomas McC's benefit) was a little lazy after a couple of years on low power and just wasn't a happy chappie on HP mode. Perhaps a few hours on E2V's test load might fix it - eh Doug!? An reverse diode overload (or MOD fault to my Varian chums) is a noisy event and I just wonder whether that little MOd Iso pcb isn't quite robust enough. (Fibres are OK Thanks chaps - been down that road a couple of years ago..) Perhaps the new Maggie was simply outgassing itself after a few months on the shelf, generating more noise until finally, cleanup complete, we're all go again. So what I was really asking was had anybody else had to replace/repair their Mod Iso pcb after a nasty RDOL session? If they have then we have a conclusion of some kind. (I know of one other site so far with the same experience). If everyone has loads of RDOLs and never popped an IC (Check IC7 it may have popped without your knowledge) then I suppose we'd better get down to finding that bad Pulse earth connection. - and it's not the loose screw on the spider earth point near the Magnetron either before you all reply.... ;-) I find it strange that I've lived with SLs for 10 years and never replaced an M5028 due to RDOL faults. It's always been due to poor output/no output and tuner problems. Perhaps we've just been lucky? Chris Hi Folks, I'd like some feedback on Reverse Diode Overload problems on SL linacs fitted with the EMC modulator (the one with covers and fibre optics) Specifically, 1) Has anybody had to replace a Magnetron on an EMC modulator because of Reverse Diode overloads (rather than other reasons such as low o/p , tuner probs etc). 2) Has anybody experienced failure of the Modulator Isolation PCB either due to 1) above or for any other reason. Thanks in anticipation of your replies. Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 13:17:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181Phi-0003SA-00; Tue, 15 Oct 2002 13:17:38 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BAA0C1112F4; Tue, 15 Oct 2002 12:49:55 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA22734 for linac-eng-list; Tue, 15 Oct 2002 05:51:55 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA22730 for ; Tue, 15 Oct 2002 05:51:54 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id <43YW31HX>; Tue, 15 Oct 2002 06:51:20 -0400 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F05A@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Randy.McVittie@lrcc.on.ca'" , linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC Date: Tue, 15 Oct 2002 06:51:19 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Randy.McVittie@lrcc.on.ca'" , linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC Date: Tue, 15 Oct 2002 06:51:19 -0400 Sender: owner-linac-eng@plato.aristotle.net I am curious as to the nature of the failure, and the messages. Also, did you have some large numbers in the init log file for those leaves? I also wonder if anyone is doing IMRT with the Mark II, and has that resulted in more problems? Tx for starting this thread. Jerry -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, October 11, 2002 4:54 PM To: linac-eng@plato.aristotle.net Subject: Varian Mark 2 MLC Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 14:21:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181Qh3-0004Yp-00; Tue, 15 Oct 2002 14:21:01 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 758951112F4; Tue, 15 Oct 2002 13:53:21 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA23727 for linac-eng-list; Tue, 15 Oct 2002 07:00:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA23723 for ; Tue, 15 Oct 2002 07:00:19 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H400N4FZUOGQO@email.med.yale.edu> for linac-eng@plato.aristotle.net; Tue, 15 Oct 2002 08:00:16 -0400 (EDT) Date: Tue, 15 Oct 2002 07:55:46 -0400 From: "Peter E. Vitali" Subject: VARiS To: "Linac-Engineers, Listserver" Message-id: <3DAC023F.2B47A91@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 15 Oct 2002 07:55:46 -0400 From: "Peter E. Vitali" Subject: VARiS To: "Linac-Engineers, Listserver" X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net Good Morning All: I need information on how do you find the file that contains the TCP/IP address for the VARiS VI/IRM and AVI/IRM computers. Thanks Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 14:52:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181RBk-0004r6-00; Tue, 15 Oct 2002 14:52:44 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id CA7FA1112F4 for ; Tue, 15 Oct 2002 14:25:04 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNP4OTSFR48XF2HU@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 14:51:24 +0200 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNP4ORO6168XNYVB@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 14:51:22 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA22734 for linac-eng-list; Tue, 15 Oct 2002 05:51:55 -0500 (CDT) Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA22730 for ; Tue, 15 Oct 2002 05:51:54 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id <43YW31HX>; Tue, 15 Oct 2002 06:51:20 -0400 Date: Tue, 15 Oct 2002 06:51:19 -0400 From: "Maddox, Buford J" Subject: RE: Varian Mark 2 MLC Sender: owner-linac-eng@plato.aristotle.net To: "'Randy.McVittie@lrcc.on.ca'" , linac-eng@plato.aristotle.net Message-id: <36298D09ED1AD311B4DC0008C7F4D4E10A30F05A@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 15 Oct 2002 06:51:19 -0400 From: "Maddox, Buford J" Subject: RE: Varian Mark 2 MLC Sender: owner-linac-eng@plato.aristotle.net To: "'Randy.McVittie@lrcc.on.ca'" , linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f I am curious as to the nature of the failure, and the messages. Also, did you have some large numbers in the init log file for those leaves? I also wonder if anyone is doing IMRT with the Mark II, and has that resulted in more problems? Tx for starting this thread. Jerry -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, October 11, 2002 4:54 PM To: linac-eng@plato.aristotle.net Subject: Varian Mark 2 MLC Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 15:03:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181RLq-0004uk-00; Tue, 15 Oct 2002 15:03:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E0FCC1112F4; Tue, 15 Oct 2002 14:35:28 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA24490 for linac-eng-list; Tue, 15 Oct 2002 07:47:38 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA24485 for ; Tue, 15 Oct 2002 07:47:36 -0500 (CDT) Received: by igate-int.hbocvan.com; id IAA06800; Tue, 15 Oct 2002 08:47:35 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma006624; Tue, 15 Oct 02 08:47:30 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id <4GAYLCV6>; Tue, 15 Oct 2002 08:43:31 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Secondary Feedback continued Date: Tue, 15 Oct 2002 08:43:31 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C27448.778CD1E0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: Secondary Feedback continued Date: Tue, 15 Oct 2002 08:43:31 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C27448.778CD1E0 Content-Type: text/plain; charset="iso-8859-1" Thanks to all the responses. I tried them all but in the end it turned out to be the power supply. Every time I took the cover off, it would cool off enough to read all the measurements correctly. After putting the covers on and running for another hour it would crap out again. I finally found it when the power supply got so degraded that the only way to stop the secondary feedback interlocks was to take the cover off and force air through the power supply. Thanks to all who supplied information. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 ------_=_NextPart_001_01C27448.778CD1E0 Content-Type: text/html; charset="iso-8859-1"
    Thanks to all the responses.  I tried them all but in the end it turned out to be the power supply.  Every time I took the cover off, it would cool off enough to read all the measurements correctly.  After putting the covers on and running for another hour it would crap out again.  I finally found it when the power supply got so degraded that the only way to stop the secondary feedback interlocks was to take the cover off and force air through the power supply. 
     
    Thanks to all who supplied information.
     
    Guy Eason
    Linear Engineer
    Radiation Oncology
    Phoebe Putney Memorial Hospital
    800 490-0684
    (229) 312-2280
     
    ------_=_NextPart_001_01C27448.778CD1E0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 15:47:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181S2L-0005Z4-00; Tue, 15 Oct 2002 15:47:05 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3F8D41112F5 for ; Tue, 15 Oct 2002 15:19:25 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNP6BXZNC08XN1JD@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 15:42:21 +0200 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNP64CXB9M8XLTHO@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 15:32:11 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA23727 for linac-eng-list; Tue, 15 Oct 2002 07:00:20 -0500 (CDT) Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA23723 for ; Tue, 15 Oct 2002 07:00:19 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H400N4FZUOGQO@email.med.yale.edu> for linac-eng@plato.aristotle.net; Tue, 15 Oct 2002 08:00:16 -0400 (EDT) Date: Tue, 15 Oct 2002 07:55:46 -0400 From: "Peter E. Vitali" Subject: VARiS Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineers, Listserver" Message-id: <3DAC023F.2B47A91@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit Precedence: bulk X-Accept-Language: en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 15 Oct 2002 07:55:46 -0400 From: "Peter E. Vitali" Subject: VARiS Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineers, Listserver" X-Accept-Language: en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Good Morning All: I need information on how do you find the file that contains the TCP/IP address for the VARiS VI/IRM and AVI/IRM computers. Thanks Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 16:55:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181T68-0006JK-00; Tue, 15 Oct 2002 16:55:04 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 31E461112F1; Tue, 15 Oct 2002 16:27:21 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA26241 for linac-eng-list; Tue, 15 Oct 2002 09:31:00 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA26225 for ; Tue, 15 Oct 2002 09:30:58 -0500 (CDT) Received: from hscemail2.hscs.virginia.edu ([128.143.111.75]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.5329); Tue, 15 Oct 2002 10:32:28 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Varian Mark 2 MLC Date: Tue, 15 Oct 2002 10:32:28 -0400 Message-ID: Thread-Topic: Varian Mark 2 MLC Thread-Index: AcJ0R3n5AhS8Ny8XTa2RU33Pbz4WogADJ8Ug From: "Dove, Bill E" To: "Maddox, Buford J" , , X-OriginalArrivalTime: 15 Oct 2002 14:32:28.0877 (UTC) FILETIME=[B04F77D0:01C27457] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA26226 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Subject: RE: Varian Mark 2 MLC Date: Tue, 15 Oct 2002 10:32:28 -0400 Thread-Topic: Varian Mark 2 MLC Thread-Index: AcJ0R3n5AhS8Ny8XTa2RU33Pbz4WogADJ8Ug From: "Dove, Bill E" To: "Maddox, Buford J" , , X-OriginalArrivalTime: 15 Oct 2002 14:32:28.0877 (UTC) FILETIME=[B04F77D0:01C27457] X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA26226 Sender: owner-linac-eng@plato.aristotle.net Hello Mark II users: We are doing IMRT with a 9 year old Mark II 52 leaf MLC. We have had various problems, a few were related to the lead screws. The grease packed in the bearings that are on the end of the lead screws can harden with age becoming harder to turn, slowing down the max. speed of the leaf movement. The greatest problem has been with some type of (for lack of a better term) goo in the very bottom threads of the lead screws that is nearly impossible to get out. We recently purchased an ultra-sonic cleaner that removes this goo and clean the follower nuts. (Only the threaded part goes into the cleaner, not the bearing.) We could hardly believe how much debris was removed after our best manual attempts to clean these threads. We are scheduling lead screw cleanings, 4 or 5 at a time, until everyone gets an ultra-sonic cleaning. William Dove, RTR(T) Service Engineer University of Virginia Health System Rad. Oncology Dept., Radiological Physics Div. Box 800375, Room 1787 Charlottesville, 22908 Voice: (434) 924-9422 FAX: (434) 982-3520 -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, October 15, 2002 6:51 AM To: 'Randy.McVittie@lrcc.on.ca'; linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC I am curious as to the nature of the failure, and the messages. Also, did you have some large numbers in the init log file for those leaves? I also wonder if anyone is doing IMRT with the Mark II, and has that resulted in more problems? Tx for starting this thread. Jerry -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, October 11, 2002 4:54 PM To: linac-eng@plato.aristotle.net Subject: Varian Mark 2 MLC Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 18:35:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181UfT-0006kn-00; Tue, 15 Oct 2002 18:35:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 39B601112F1; Tue, 15 Oct 2002 18:07:54 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA28311 for linac-eng-list; Tue, 15 Oct 2002 11:15:28 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA28307 for ; Tue, 15 Oct 2002 11:15:26 -0500 (CDT) Received: from hscemail2.hscs.virginia.edu ([128.143.111.75]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.5329); Tue, 15 Oct 2002 12:16:54 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Varian Mark 2 MLC Date: Tue, 15 Oct 2002 12:16:54 -0400 Message-ID: Thread-Topic: Varian Mark 2 MLC Thread-Index: AcJ0Wu/qKTNEySafRjqWgouxyARXEgAC0lqA From: "Dove, Bill E" To: "Maddox, Buford J" , , X-OriginalArrivalTime: 15 Oct 2002 16:16:54.0848 (UTC) FILETIME=[471EC400:01C27466] Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA28308 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Subject: RE: Varian Mark 2 MLC Date: Tue, 15 Oct 2002 12:16:54 -0400 Thread-Topic: Varian Mark 2 MLC Thread-Index: AcJ0Wu/qKTNEySafRjqWgouxyARXEgAC0lqA From: "Dove, Bill E" To: "Maddox, Buford J" , , X-OriginalArrivalTime: 15 Oct 2002 16:16:54.0848 (UTC) FILETIME=[471EC400:01C27466] X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA28308 Sender: owner-linac-eng@plato.aristotle.net We have not been able to loosen the lead screw bearings, or find a way to replace them. However, we do work lubrication into the jaw bearings and have also had some success using lube on an aged target slide. The lubes that seem to work best for us are superlube and triflow, not sure which is better. William Dove, RTR(T) Service Engineer University of Virginia Health System Rad. Oncology Dept., Radiological Physics Div. Box 800375, Room 1787 Charlottesville, 22908 Voice: (434) 924-9422 FAX: (434) 982-3520 -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, October 15, 2002 10:54 AM To: Dove, Bill E; Randy.McVittie@lrcc.on.ca; linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC TX for the response re IMRT. Have you been able to loosen up the leaf screw bearings with a little superlube? This seems to be necessary for the main jaw bearings occasionally, as that grease gets stiff. Gantry bearing grease tends to harden with time also. We have one stiff one that we may try to loosen this way. We will definitely look into the goo and an ultrasonic cleaner! Jerry -----Original Message----- From: Dove, Bill E [mailto:WED2N@hscmail.mcc.virginia.edu] Sent: Tuesday, October 15, 2002 10:32 AM To: Maddox, Buford J; Randy.McVittie@lrcc.on.ca; linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC Hello Mark II users: We are doing IMRT with a 9 year old Mark II 52 leaf MLC. We have had various problems, a few were related to the lead screws. The grease packed in the bearings that are on the end of the lead screws can harden with age becoming harder to turn, slowing down the max. speed of the leaf movement. The greatest problem has been with some type of (for lack of a better term) goo in the very bottom threads of the lead screws that is nearly impossible to get out. We recently purchased an ultra-sonic cleaner that removes this goo and clean the follower nuts. (Only the threaded part goes into the cleaner, not the bearing.) We could hardly believe how much debris was removed after our best manual attempts to clean these threads. We are scheduling lead screw cleanings, 4 or 5 at a time, until everyone gets an ultra-sonic cleaning. William Dove, RTR(T) Service Engineer University of Virginia Health System Rad. Oncology Dept., Radiological Physics Div. Box 800375, Room 1787 Charlottesville, 22908 Voice: (434) 924-9422 FAX: (434) 982-3520 -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, October 15, 2002 6:51 AM To: 'Randy.McVittie@lrcc.on.ca'; linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC I am curious as to the nature of the failure, and the messages. Also, did you have some large numbers in the init log file for those leaves? I also wonder if anyone is doing IMRT with the Mark II, and has that resulted in more problems? Tx for starting this thread. Jerry -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, October 11, 2002 4:54 PM To: linac-eng@plato.aristotle.net Subject: Varian Mark 2 MLC Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 18:41:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181Ukj-0006ln-00; Tue, 15 Oct 2002 18:41:05 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2CDA51112F1 for ; Tue, 15 Oct 2002 18:13:21 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNPCNYM6B48XNMO5@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 18:39:46 +0200 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNPCNWXJ4Q8XN3IH@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 18:39:45 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA26769 for linac-eng-list; Tue, 15 Oct 2002 09:54:44 -0500 (CDT) Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA26765 for ; Tue, 15 Oct 2002 09:54:42 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2650.21) id <43YW3827>; Tue, 15 Oct 2002 10:54:11 -0400 Date: Tue, 15 Oct 2002 10:54:02 -0400 From: "Maddox, Buford J" Subject: RE: Varian Mark 2 MLC Sender: owner-linac-eng@plato.aristotle.net To: "'Dove, Bill E'" , Randy.McVittie@lrcc.on.ca, linac-eng@plato.aristotle.net Message-id: <36298D09ED1AD311B4DC0008C7F4D4E10A30F05C@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 15 Oct 2002 10:54:02 -0400 From: "Maddox, Buford J" Subject: RE: Varian Mark 2 MLC Sender: owner-linac-eng@plato.aristotle.net To: "'Dove, Bill E'" , Randy.McVittie@lrcc.on.ca, linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f TX for the response re IMRT. Have you been able to loosen up the leaf screw bearings with a little superlube? This seems to be necessary for the main jaw bearings occasionally, as that grease gets stiff. Gantry bearing grease tends to harden with time also. We have one stiff one that we may try to loosen this way. We will definitely look into the goo and an ultrasonic cleaner! Jerry -----Original Message----- From: Dove, Bill E [mailto:WED2N@hscmail.mcc.virginia.edu] Sent: Tuesday, October 15, 2002 10:32 AM To: Maddox, Buford J; Randy.McVittie@lrcc.on.ca; linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC Hello Mark II users: We are doing IMRT with a 9 year old Mark II 52 leaf MLC. We have had various problems, a few were related to the lead screws. The grease packed in the bearings that are on the end of the lead screws can harden with age becoming harder to turn, slowing down the max. speed of the leaf movement. The greatest problem has been with some type of (for lack of a better term) goo in the very bottom threads of the lead screws that is nearly impossible to get out. We recently purchased an ultra-sonic cleaner that removes this goo and clean the follower nuts. (Only the threaded part goes into the cleaner, not the bearing.) We could hardly believe how much debris was removed after our best manual attempts to clean these threads. We are scheduling lead screw cleanings, 4 or 5 at a time, until everyone gets an ultra-sonic cleaning. William Dove, RTR(T) Service Engineer University of Virginia Health System Rad. Oncology Dept., Radiological Physics Div. Box 800375, Room 1787 Charlottesville, 22908 Voice: (434) 924-9422 FAX: (434) 982-3520 -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, October 15, 2002 6:51 AM To: 'Randy.McVittie@lrcc.on.ca'; linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC I am curious as to the nature of the failure, and the messages. Also, did you have some large numbers in the init log file for those leaves? I also wonder if anyone is doing IMRT with the Mark II, and has that resulted in more problems? Tx for starting this thread. Jerry -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, October 11, 2002 4:54 PM To: linac-eng@plato.aristotle.net Subject: Varian Mark 2 MLC Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 15 19:08:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181VBW-0006pa-00; Tue, 15 Oct 2002 19:08:46 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6B45E1112F1 for ; Tue, 15 Oct 2002 18:41:01 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNPDLLBZHS8X9R9A@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 19:06:53 +0200 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNPDLIAU528XJDJ8@med.uu.nl> for kok@radth.med.uu.nl; Tue, 15 Oct 2002 19:06:50 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA26241 for linac-eng-list; Tue, 15 Oct 2002 09:31:00 -0500 (CDT) Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA26225 for ; Tue, 15 Oct 2002 09:30:58 -0500 (CDT) Received: from hscemail2.hscs.virginia.edu ([128.143.111.75]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.5329); Tue, 15 Oct 2002 10:32:28 -0400 Date: Tue, 15 Oct 2002 10:32:28 -0400 From: "Dove, Bill E" Subject: RE: Varian Mark 2 MLC Sender: owner-linac-eng@plato.aristotle.net To: "Maddox, Buford J" , Randy.McVittie@lrcc.on.ca, linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft Exchange V6.0.5762.3 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA26226 Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 8bit Precedence: bulk Thread-Topic: Varian Mark 2 MLC Thread-Index: AcJ0R3n5AhS8Ny8XTa2RU33Pbz4WogADJ8Ug content-class: urn:content-classes:message X-OriginalArrivalTime: 15 Oct 2002 14:32:28.0877 (UTC) FILETIME=[B04F77D0:01C27457] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 15 Oct 2002 10:32:28 -0400 From: "Dove, Bill E" Subject: RE: Varian Mark 2 MLC Sender: owner-linac-eng@plato.aristotle.net To: "Maddox, Buford J" , Randy.McVittie@lrcc.on.ca, linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft Exchange V6.0.5762.3 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA26226 Thread-Topic: Varian Mark 2 MLC Thread-Index: AcJ0R3n5AhS8Ny8XTa2RU33Pbz4WogADJ8Ug content-class: urn:content-classes:message X-OriginalArrivalTime: 15 Oct 2002 14:32:28.0877 (UTC) FILETIME=[B04F77D0:01C27457] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hello Mark II users: We are doing IMRT with a 9 year old Mark II 52 leaf MLC. We have had various problems, a few were related to the lead screws. The grease packed in the bearings that are on the end of the lead screws can harden with age becoming harder to turn, slowing down the max. speed of the leaf movement. The greatest problem has been with some type of (for lack of a better term) goo in the very bottom threads of the lead screws that is nearly impossible to get out. We recently purchased an ultra-sonic cleaner that removes this goo and clean the follower nuts. (Only the threaded part goes into the cleaner, not the bearing.) We could hardly believe how much debris was removed after our best manual attempts to clean these threads. We are scheduling lead screw cleanings, 4 or 5 at a time, until everyone gets an ultra-sonic cleaning. William Dove, RTR(T) Service Engineer University of Virginia Health System Rad. Oncology Dept., Radiological Physics Div. Box 800375, Room 1787 Charlottesville, 22908 Voice: (434) 924-9422 FAX: (434) 982-3520 -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: Tuesday, October 15, 2002 6:51 AM To: 'Randy.McVittie@lrcc.on.ca'; linac-eng@plato.aristotle.net Subject: RE: Varian Mark 2 MLC I am curious as to the nature of the failure, and the messages. Also, did you have some large numbers in the init log file for those leaves? I also wonder if anyone is doing IMRT with the Mark II, and has that resulted in more problems? Tx for starting this thread. Jerry -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, October 11, 2002 4:54 PM To: linac-eng@plato.aristotle.net Subject: Varian Mark 2 MLC Hello List: We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 years old. We just had a problem with 2 of the lead screw assemblies and I am wondering if there are more just over the horizon. The failure showed up during initialization of the system after we had cleaned the leaves and lead screws. The failure occurred on the second pass of the initialization. Always on the second pass, never on the first pass and some times it would initialize fine. I thought the two passes were identical but when I checked the manual I found that there is a difference in the movement of the leaf in the second pass. Motor currents were nice and low about 4-6mV on the test points, so I thought we had a connection problem but after exhausting everything in that chain we were left with the lead screws. When it failed again we inspected the lead screw and could see a bit of play in the leaf so the lead screws were changed and initialization worked fine and all is well now. The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking that these leaves are the ones going from fully open to fully closed all the time. The outer leaves probably have the most traffic of any leaves in the system would everyone agree? We have kept track of the motors that have been replaced in the 3 MLC systems we have and there is no one place that seems to be worse for the number of motor replacements, the inner motors are no more apt to fail than motors on the edge of the field. Now we are going to start tracking lead screws. Randy McVittie London Regional Cancer Centre London, Ontario CANADA 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 16 18:29:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 181r30-00083A-00; Wed, 16 Oct 2002 18:29:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EB8B91112F3; Wed, 16 Oct 2002 18:01:12 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA18050 for linac-eng-list; Wed, 16 Oct 2002 11:01:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsm032.netvigator.com (imsm032.netvigator.com [218.102.23.102]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA18046 for ; Wed, 16 Oct 2002 11:01:18 -0500 (CDT) Received: (qmail 22639 invoked from network); 16 Oct 2002 16:01:02 -0000 Received: from pcd315052.netvigator.com (HELO kyeung) (203.218.105.52) by imsm032.netvigator.com with SMTP; 16 Oct 2002 16:01:02 -0000 Message-ID: <000c01c2752c$32716be0$df82fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Ximatron x-ray tube installation Date: Wed, 16 Oct 2002 23:53:40 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01C2756F.405AB020" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Ximatron x-ray tube installation Date: Wed, 16 Oct 2002 23:53:40 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C2756F.405AB020 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian Ximatron X-ray tube A256 installation Could anyone advise the procedure / experiences of Ximatron X-ray tube = installation? Thanks in advance. Kim Yeung ------=_NextPart_000_0009_01C2756F.405AB020 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
            = Varian=20 Ximatron X-ray tube A256 installation
     
    Could anyone advise the procedure = /=20 experiences  of  Ximatron X-ray tube = installation?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0009_01C2756F.405AB020-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 17 16:34:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182BjC-0007h0-00; Thu, 17 Oct 2002 16:34:22 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 975991112F9; Thu, 17 Oct 2002 16:05:43 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA07506 for linac-eng-list; Thu, 17 Oct 2002 08:58:16 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from igate-int.hbocvan.com (firewall-user@igate-ext.hbocvan.com [139.177.224.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA07502 for ; Thu, 17 Oct 2002 08:58:10 -0500 (CDT) Received: by igate-int.hbocvan.com; id JAA05048; Thu, 17 Oct 2002 09:58:04 -0400 (EDT) Received: from siauser.hbocvan.com(32.72.1.9) by igate.hbocvan.com via smap (V5.0) id xma005015; Thu, 17 Oct 02 09:58:00 -0400 Received: by EXCHANGE1 with Internet Mail Service (5.5.2653.19) id <4GAYLNP9>; Thu, 17 Oct 2002 09:57:59 -0400 Message-ID: From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: CSSI Interface on Varian 2100C with 3.4 Software Date: Thu, 17 Oct 2002 09:57:53 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C275E5.2FE1E850" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Subject: CSSI Interface on Varian 2100C with 3.4 Software Date: Thu, 17 Oct 2002 09:57:53 -0400 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C275E5.2FE1E850 Content-Type: text/plain; charset="iso-8859-1" Does any one have any information about connecting a CSSI interface to the 2100C with the IBM PS-2 computer system. Is this just a software install or is it a software/hardware install. Guy Eason Linear Engineer Radiation Oncology Phoebe Putney Memorial Hospital 800 490-0684 (229) 312-2280 ------_=_NextPart_001_01C275E5.2FE1E850 Content-Type: text/html; charset="iso-8859-1"
    Does any one have any information about connecting a CSSI interface to the 2100C with the IBM PS-2 computer system.  Is this just a software install or is it a software/hardware install. 

    Guy Eason
    Linear Engineer
    Radiation Oncology
    Phoebe Putney Memorial Hospital
    800 490-0684
    (229) 312-2280

     
    ------_=_NextPart_001_01C275E5.2FE1E850-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 17 18:02:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182D6E-0008HM-00; Thu, 17 Oct 2002 18:02:14 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 75A7E1112F9; Thu, 17 Oct 2002 17:33:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA09168 for linac-eng-list; Thu, 17 Oct 2002 10:33:21 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailrelay1.lrz-muenchen.de (mailrelay1.lrz-muenchen.de [129.187.254.101]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA09161 for ; Thu, 17 Oct 2002 10:33:19 -0500 (CDT) Received: from [129.187.28.20] by mailout.lrz-muenchen.de with ESMTP for linac-eng@plato.aristotle.net; Thu, 17 Oct 2002 17:31:49 +0200 Message-Id: <3DAED65E.71264BDA@extern.lrz-muenchen.de> Date: Thu, 17 Oct 2002 17:25:19 +0200 From: Andreas Marx X-Mailer: Mozilla 4.75 [de] (Win98; U) X-Accept-Language: de MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: Boot-Problems SL 20 (Electa) References: Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 17 Oct 2002 17:25:19 +0200 From: Andreas Marx X-Accept-Language: de To: "linac-eng@plato.aristotle.net" Subject: Boot-Problems SL 20 (Electa) Sender: owner-linac-eng@plato.aristotle.net > We have the following Boot-Problems : Processor Subsystem Test Fail Mass Storage Subsystem Test Fail Memory Subsystem Test Pass We have already changed: - Processor III - Hard Disk SL - Whole Rack for Hard Disk/Floppy,... (With Power Supply for Hard Disk, ...) - Three Power Supplies for the Processor-Rack After booting twice or third time the SL 20 passes all Subsystem Tests! If you have any ideas, please let us know! Thank you very much! -- Krankenhaus München Schwabing Institut für Medizinische Physik und Strahlenschutz Andreas Marx Kölner Platz 1 80804 München Tel.: 089/3068-2492 Fax.: 089/3068-3913 email: Andreas.Marx@extern.lrz-muenchen.de 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 17 18:28:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182DVs-0008Mo-00; Thu, 17 Oct 2002 18:28:44 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2B7131112F9; Thu, 17 Oct 2002 18:00:03 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA09479 for linac-eng-list; Thu, 17 Oct 2002 10:57:58 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailrelay2.lrz-muenchen.de (mailrelay2.lrz-muenchen.de [129.187.254.102]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA09472 for ; Thu, 17 Oct 2002 10:57:56 -0500 (CDT) Received: from [129.187.28.20] by mailout.lrz-muenchen.de with ESMTP for linac-eng@plato.aristotle.net; Thu, 17 Oct 2002 17:57:53 +0200 Message-Id: <3DAEDCA0.FF340B43@extern.lrz-muenchen.de> Date: Thu, 17 Oct 2002 17:52:00 +0200 From: Andreas Marx X-Mailer: Mozilla 4.75 [de] (Win98; U) X-Accept-Language: de MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: Hyroglphen at the Boot-Process Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 17 Oct 2002 17:52:00 +0200 From: Andreas Marx X-Accept-Language: de To: "linac-eng@plato.aristotle.net" Subject: Hyroglphen at the Boot-Process Sender: owner-linac-eng@plato.aristotle.net When we boot our SL 20 we cannot read anything because of hyroglyphen. When the Boot-Process reaches the date/time screen and if we press Enter then all Hyroglyphen are gone and it is possible to read the screen. We have already changed: - Primary PC - Network PCB in the Javelin - Switched the V24 interface in the Javelin: Primary PC <-->Printer - Switched the Network Cable from Slot 6-->7 in the HUB If you have any ideas, please let us know! Thank you very much! -- Krankenhaus München Schwabing Institut für Medizinische Physik und Strahlenschutz Andreas Marx Kölner Platz 1 80804 München Tel.: 089/3068-2492 Fax.: 089/3068-3913 email: Andreas.Marx@extern.lrz-muenchen.de 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 17 18:35:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182DcE-0008NZ-00; Thu, 17 Oct 2002 18:35:18 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 343491112FB; Thu, 17 Oct 2002 18:06:37 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA09684 for linac-eng-list; Thu, 17 Oct 2002 11:07:01 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from sccrmhc01.attbi.com (sccrmhc01.attbi.com [204.127.202.61]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA09680 for ; Thu, 17 Oct 2002 11:06:59 -0500 (CDT) Received: from c1784162a ([12.247.219.69]) by sccrmhc01.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20021017160620.KAOH28253.sccrmhc01.attbi.com@c1784162a>; Thu, 17 Oct 2002 16:06:20 +0000 Message-ID: <002001c275f7$9e452a20$0100a8c0@mshome.net> From: "Rich Kimball" To: "Eason, Guy" , "Linac-Engineering (E-mail)" References: Subject: Re: CSSI Interface on Varian 2100C with 3.4 Software Date: Thu, 17 Oct 2002 11:09:48 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01C275CD.B5352660" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rich Kimball" To: "Eason, Guy" , "Linac-Engineering (E-mail)" Subject: Re: CSSI Interface on Varian 2100C with 3.4 Software Date: Thu, 17 Oct 2002 11:09:48 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C275CD.B5352660 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Software/Hardware. You need an additional microchannel serial card plus the Serial = interface patch from Varian. Rich Kimball Acceletronics Midwest, Inc. ----- Original Message -----=20 From: Eason, Guy=20 To: Linac-Engineering (E-mail)=20 Sent: Thursday, October 17, 2002 8:57 AM Subject: CSSI Interface on Varian 2100C with 3.4 Software Does any one have any information about connecting a CSSI interface to = the 2100C with the IBM PS-2 computer system. Is this just a software = install or is it a software/hardware install. =20 Guy Eason=20 Linear Engineer=20 Radiation Oncology=20 Phoebe Putney Memorial Hospital=20 800 490-0684=20 (229) 312-2280=20 ------=_NextPart_000_001D_01C275CD.B5352660 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Software/Hardware.
    You need an additional microchannel serial card plus = the=20 Serial interface patch from Varian.
     
    Rich Kimball
    Acceletronics Midwest, Inc.
    ----- Original Message -----
    From:=20 Eason, = Guy
    To: Linac-Engineering = (E-mail)=20
    Sent: Thursday, October 17, = 2002 8:57=20 AM
    Subject: CSSI Interface on = Varian 2100C=20 with 3.4 Software

    Does any one have = any=20 information about connecting a CSSI interface to the 2100C with the = IBM PS-2=20 computer system.  Is this just a software install or is it a=20 software/hardware install. 

    Guy Eason
    Linear Engineer
    Radiation=20 Oncology
    Phoebe Putney = Memorial=20 Hospital
    800 = 490-0684=20
    (229) 312-2280

     
    ------=_NextPart_000_001D_01C275CD.B5352660-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 17 20:03:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182EzG-00007p-00; Thu, 17 Oct 2002 20:03:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 158811112F4; Thu, 17 Oct 2002 19:34:23 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA11791 for linac-eng-list; Thu, 17 Oct 2002 12:36:03 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server106.phsa.ca (mail.phsa.ca [209.139.228.217]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA11787 for ; Thu, 17 Oct 2002 12:36:01 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254]) by server106.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Thu, 17 Oct 2002 10:35:05 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id <48PN8NST>; Thu, 17 Oct 2002 10:31:16 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA006F9C73D@SERVER20> From: Denny Yu To: "'Andreas Marx'" , linac-eng@plato.aristotle.net Subject: RE: Boot-Problems SL 20 (Electa) Date: Thu, 17 Oct 2002 10:34:18 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C27603.6BB44170" X-OriginalArrivalTime: 17 Oct 2002 17:35:05.0813 (UTC) FILETIME=[87FAB850:01C27603] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Denny Yu To: "'Andreas Marx'" , linac-eng@plato.aristotle.net Subject: RE: Boot-Problems SL 20 (Electa) Date: Thu, 17 Oct 2002 10:34:18 -0700 X-OriginalArrivalTime: 17 Oct 2002 17:35:05.0813 (UTC) FILETIME=[87FAB850:01C27603] Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C27603.6BB44170 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We have very similar problem as yours in the last few weeks, our SL20 ( = 7-8 years old)either freezes at loading the FAC1, or fails the Mass Storage Subsystem Test. As well, we have to boot it 2 to 3 times to get it up.=20 We replaced the hard drive, and last night, I replaced the power supply = for the hard drive. Just wait and see if the problem still persists. It is = not heat related problem since it happens first thing in the morning. = Sorry, cannot help you at this point in time. Good luck. Denny Yu Service Technologist Fraser Valley Cancer Center -----Original Message----- From: Andreas Marx [mailto:Andreas.Marx@extern.lrz-muenchen.de] Sent: Thursday, October 17, 2002 8:25 AM To: linac-eng@plato.aristotle.net Subject: Boot-Problems SL 20 (Electa) > We have the following Boot-Problems : Processor Subsystem Test Fail Mass Storage Subsystem Test Fail Memory Subsystem Test Pass We have already changed: - Processor III - Hard Disk SL - Whole Rack for Hard Disk/Floppy,... (With Power Supply for Hard Disk, = ...) - Three Power Supplies for the Processor-Rack After booting twice or third time the SL 20 passes all Subsystem Tests! If you have any ideas, please let us know! Thank you very much! -- Krankenhaus M=FCnchen Schwabing Institut f=FCr Medizinische Physik und Strahlenschutz Andreas Marx K=F6lner Platz 1 80804 M=FCnchen Tel.: 089/3068-2492 Fax.: 089/3068-3913 email: Andreas.Marx@extern.lrz-muenchen.de ------_=_NextPart_001_01C27603.6BB44170 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Boot-Problems SL 20 (Electa)

    We have very similar problem as yours in the last few = weeks, our SL20 ( 7-8 years old)either freezes at loading the FAC1, or = fails the Mass Storage Subsystem Test. As well, we have to boot it 2 to = 3 times to get it up.

    We replaced the hard drive, and last night, I = replaced the power supply for the hard drive. Just wait and see if the = problem still persists. It is not heat related problem since it happens = first thing in the morning. Sorry, cannot help you at this point in = time.

    Good luck.

    Denny Yu
    Service Technologist
    Fraser Valley Cancer Center

    -----Original Message-----
    From: Andreas Marx [mailto:Andreas.Marx@= extern.lrz-muenchen.de]
    Sent: Thursday, October 17, 2002 8:25 AM
    To: linac-eng@plato.aristotle.net
    Subject: Boot-Problems SL 20 (Electa)





    > We have the following  Boot-Problems = :

    Processor Subsystem = Test           &n= bsp;    Fail
    Mass Storage Subsystem = Test          Fail
    Memory Subsystem = Test           &n= bsp;      Pass

    We have already changed:

    - Processor III
    - Hard Disk SL
    - Whole Rack for Hard Disk/Floppy,... (With Power = Supply for Hard Disk, ...)
    - Three Power Supplies for the Processor-Rack

    After booting twice or third time the SL 20 passes = all Subsystem Tests!

    If you have any ideas, please let us know!

    Thank you very much!

    --
    Krankenhaus M=FCnchen Schwabing
    Institut f=FCr Medizinische Physik und = Strahlenschutz
    Andreas Marx
    K=F6lner Platz 1
    80804 M=FCnchen
    Tel.: 089/3068-2492
    Fax.: 089/3068-3913
    email: Andreas.Marx@extern.lrz-muenchen.de

    ------_=_NextPart_001_01C27603.6BB44170-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 17 20:07:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182F3B-000087-00; Thu, 17 Oct 2002 20:07:13 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id F372B1112F4; Thu, 17 Oct 2002 19:38:30 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA11815 for linac-eng-list; Thu, 17 Oct 2002 12:36:50 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailcity.com (fes4-mail.whowhere.com [209.202.220.170] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA11778 for ; Thu, 17 Oct 2002 12:35:29 -0500 (CDT) Received: from Unknown/Local ([?.?.?.?]) by mailcity.com; Thu, 17 Oct 2002 17:34:49 -0000 To: linac-eng@plato.aristotle.net, Randy.McVittie@lrcc.on.ca Date: Thu, 17 Oct 2002 13:34:49 -0400 From: "david hall" Message-ID: Mime-Version: 1.0 X-Sent-Mail: off Reply-To: hall.david@lycos.com X-Mailer: MailCity Service X-Priority: 3 Subject: Re: Varian Mark 2 MLC X-Sender-Ip: 209.245.73.87 Organization: Lycos Mail (http://www.mail.lycos.com:80) Content-Type: text/plain; charset=us-ascii Content-Language: en Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: linac-eng@plato.aristotle.net, Randy.McVittie@lrcc.on.ca Date: Thu, 17 Oct 2002 13:34:49 -0400 From: "david hall" X-Sent-Mail: off Reply-To: hall.david@lycos.com X-Priority: 3 Subject: Re: Varian Mark 2 MLC X-Sender-Ip: 209.245.73.87 Organization: Lycos Mail (http://www.mail.lycos.com:80) Content-Language: en Sender: owner-linac-eng@plato.aristotle.net I suggest that you verify infrared red receiver tp values, if good check calibration, leaves maybe slamming together causing wear. Dave Hall -- On Fri, 11 Oct 2002 16:54:05 Randy.McVittie wrote: > > >Hello List: > >We have 3 Varian Mark 2 MLC's 2 are 52 leaf and 1 is an 80 leaf, all are about 5 >years old. > >We just had a problem with 2 of the lead screw assemblies and I am wondering if >there are more just over the horizon. > >The failure showed up during initialization of the system after we had cleaned >the leaves and lead screws. > >The failure occurred on the second pass of the initialization. Always on the >second pass, never on the first pass >and some times it would initialize fine. I thought the two passes were >identical but when I checked the manual I found that there is a difference in >the movement of the leaf in the second pass. > >Motor currents were nice and low about 4-6mV on the test points, so I thought we >had a connection problem >but after exhausting everything in that chain we were left with the lead screws. > >When it failed again we inspected the lead screw and could see a bit of play in >the leaf so the lead screws were >changed and initialization worked fine and all is well now. > >The lead screws that failed were A37 and B2 (an 80 leaf MLC), so I'm thinking >that these leaves are the ones going from >fully open to fully closed all the time. The outer leaves probably have the >most traffic of any leaves in the system would everyone agree? > >We have kept track of the motors that have been replaced in the 3 MLC systems we >have and there is no one place that >seems to be worse for the number of motor replacements, the inner motors are no >more apt to fail than motors on the edge of the field. Now we are going to >start tracking lead screws. > > > >Randy McVittie >London Regional Cancer Centre >London, Ontario >CANADA > > > > > ____________________________________________________________ Get 250 full-color business cards FREE right now! http://businesscards.lycos.com 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 17 20:51:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182FkE-0000Ew-00; Thu, 17 Oct 2002 20:51:42 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 43E7D1112F4; Thu, 17 Oct 2002 20:22:58 +0200 (METDST) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA13064 for linac-eng-list; Thu, 17 Oct 2002 13:28:07 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server106.phsa.ca (mail.phsa.ca [209.139.228.217]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA13060 for ; Thu, 17 Oct 2002 13:28:06 -0500 (CDT) Received: from server17.bccancer.bc.ca ([205.233.164.254]) by server106.phsa.ca with Microsoft SMTPSVC(5.0.2195.4905); Thu, 17 Oct 2002 11:29:40 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id <48PN83TF>; Thu, 17 Oct 2002 11:25:51 -0700 Message-ID: <6BAF4D075F07D411B30900508B94CBA005CC2819@SERVER20> From: Randy Wick To: "'Andreas Marx'" , linac-eng@plato.aristotle.net Subject: RE: Hieroglyphs at the Boot-Process Date: Thu, 17 Oct 2002 11:28:55 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2760B.0CDAD120" X-OriginalArrivalTime: 17 Oct 2002 18:29:40.0428 (UTC) FILETIME=[27CD50C0:01C2760B] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy Wick To: "'Andreas Marx'" , linac-eng@plato.aristotle.net Subject: RE: Hieroglyphs at the Boot-Process Date: Thu, 17 Oct 2002 11:28:55 -0700 X-OriginalArrivalTime: 17 Oct 2002 18:29:40.0428 (UTC) FILETIME=[27CD50C0:01C2760B] Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2760B.0CDAD120 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Does this happen every time you boot up? We have seen this occasionally = for a few years, and as you say, once you get to the time/date page it will begin to display properly. Anyone else know why? This is probably = unrelated to the boot problem you described previously.=20 To add to what Denny Yu wrote, in our case we do not get a failure on = the Processor Subsystem test. When you say that you replaced the peripheral rack, does that include the hard disk, floppy and tape drives? If so, = what about the SCSI cable? We have had intermittent boot and run-time = problems (system would just crash) where the cable was at fault, and another = where the floppy drive was the culprit (probably a SCSI termination issue). = If you have changed the drives, maybe try the cable. On another issue, is Elekta dropping Javelin support in Europe like = they are in North America? How are people planning to handle this (question for = the general list audience there). ----------------------------------- Randy Wick Radiotherapy Service=20 Fraser Valley Cancer Centre Surrey, BC Canada=20 rwick@bccancer.bc.ca > -----Original Message----- > From: Andreas Marx [mailto:Andreas.Marx@extern.lrz-muenchen.de] > Sent: Thursday, October 17, 2002 8:52 AM > To: linac-eng@plato.aristotle.net > Subject: Hyroglphen at the Boot-Process >=20 >=20 > When we boot our SL 20 we cannot read anything because of = hyroglyphen. > When the Boot-Process reaches the date/time screen and if we=20 > press Enter >=20 > then all Hyroglyphen are gone and it is possible to read the screen. >=20 > We have already changed: >=20 > - Primary PC > - Network PCB in the Javelin > - Switched the V24 interface in the Javelin: Primary PC <-->Printer > - Switched the Network Cable from Slot 6-->7 in the HUB >=20 > If you have any ideas, please let us know! >=20 > Thank you very much! >=20 >=20 >=20 > -- > Krankenhaus M=FCnchen Schwabing > Institut f=FCr Medizinische Physik und Strahlenschutz > Andreas Marx > K=F6lner Platz 1 > 80804 M=FCnchen > Tel.: 089/3068-2492 > Fax.: 089/3068-3913 > email: Andreas.Marx@extern.lrz-muenchen.de >=20 >=20 ------_=_NextPart_001_01C2760B.0CDAD120 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Hieroglyphs at the Boot-Process

    Does this happen every time you boot up? We have seen = this occasionally for a few years, and as you say, once you get to the = time/date page it will begin to display properly. Anyone else know why? = This is probably unrelated to the boot problem you described = previously.

    To add to what Denny Yu wrote, in our case we do not = get a failure on the Processor Subsystem test. When you say that you = replaced the peripheral rack, does that include the hard disk, floppy = and tape drives? If so, what about the SCSI cable? We have had = intermittent boot and run-time problems (system would just crash) where = the cable was at fault, and another where the floppy drive was the = culprit (probably a SCSI termination issue). If you have changed the = drives, maybe try the cable.

    On another issue, is Elekta dropping Javelin support = in Europe like they are in North America? How are people planning to = handle this (question for the general list audience there).

    -----------------------------------
    Randy Wick        = Radiotherapy Service

    Fraser Valley Cancer Centre
    Surrey, BC Canada

    rwick@bccancer.bc.ca

    > -----Original Message-----
    > From: Andreas Marx [mailto:Andreas.Marx@= extern.lrz-muenchen.de]
    > Sent: Thursday, October 17, 2002 8:52 AM
    > To: linac-eng@plato.aristotle.net
    > Subject: Hyroglphen at the Boot-Process
    >
    >
    > When we boot our SL 20 we cannot read anything = because of hyroglyphen.
    > When the Boot-Process reaches the date/time = screen and if we
    > press Enter
    >
    > then all Hyroglyphen are gone and it is = possible to read the screen.
    >
    > We have already changed:
    >
    > - Primary PC
    > - Network PCB in the Javelin
    > - Switched the V24 interface in the Javelin: = Primary PC <-->Printer
    > - Switched the Network Cable from Slot 6-->7 = in the HUB
    >
    > If you have any ideas, please let us = know!
    >
    > Thank you very much!
    >
    >
    >
    > --
    > Krankenhaus M=FCnchen Schwabing
    > Institut f=FCr Medizinische Physik und = Strahlenschutz
    > Andreas Marx
    > K=F6lner Platz 1
    > 80804 M=FCnchen
    > Tel.: 089/3068-2492
    > Fax.: 089/3068-3913
    > email: = Andreas.Marx@extern.lrz-muenchen.de
    >
    >

    ------_=_NextPart_001_01C2760B.0CDAD120-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 18 11:50:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182TmP-0004bU-00; Fri, 18 Oct 2002 11:50:53 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6963F1112F4; Fri, 18 Oct 2002 11:21:51 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA25193 for linac-eng-list; Fri, 18 Oct 2002 04:19:20 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA25189 for ; Fri, 18 Oct 2002 04:19:18 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 182THF-0002TN-00; Fri, 18 Oct 2002 10:18:41 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D908C0F0035743F for linac-eng@plato.aristotle.net; Fri, 18 Oct 2002 10:18:41 +0100 Received: from email.rbbh_msdomain1 (195.104.159.2) by relay.nhs.uk (Syntegra-4 6.5.026) id 3DAC83C8000C24E2 for linac-eng@plato.aristotle.net; Fri, 18 Oct 2002 10:18:41 +0100 Received: by email.rbbh-tr.nhs.uk with Internet Mail Service (5.5.2653.19) id <4Y1AZFZN>; Fri, 18 Oct 2002 10:17:46 +0100 Message-ID: <5237066EDDFDC14697C9231BAF3EDFA32B2CAE@marge.rbbh-tr.nhs.uk> From: Whittard Paul To: "'linac-eng'" Subject: RE: Hyroglphen at the Boot-Process Date: Fri, 18 Oct 2002 10:17:43 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25190 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Whittard Paul To: "'linac-eng'" Subject: RE: Hyroglphen at the Boot-Process Date: Fri, 18 Oct 2002 10:17:43 +0100 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25190 Sender: owner-linac-eng@plato.aristotle.net Andreas. This sounds like a character set selection problem on the display terminal. I am guessing here, but it may be that the display terminal itself switches on with a particular default character set. At a certain stage in the linac control system boot process an instruction will be issued to the terminals to ensure that the correct character set is being used internally by the terminal itself. Try checking the programming of the terminals The specifics probably depend on the age, and therefore configuration, of your machine. Paul Whittard Royal Berkshire Hospital Reading RG1 5AN Tel: +44 (0) 118 9877 355 Fax: +44 (0) 118 9877 377 > -----Original Message----- > From: Andreas Marx [SMTP:Andreas.Marx@extern.lrz-muenchen.de] > Sent: 17 October 2002 16:52 > To: linac-eng@plato.aristotle.net > Subject: Hyroglphen at the Boot-Process > > When we boot our SL 20 we cannot read anything because of hyroglyphen. > When the Boot-Process reaches the date/time screen and if we press Enter > > then all Hyroglyphen are gone and it is possible to read the screen. > > We have already changed: > > - Primary PC > - Network PCB in the Javelin > - Switched the V24 interface in the Javelin: Primary PC <-->Printer > - Switched the Network Cable from Slot 6-->7 in the HUB > > If you have any ideas, please let us know! > > Thank you very much! > > > > -- > Krankenhaus München Schwabing > Institut für Medizinische Physik und Strahlenschutz > Andreas Marx > Kölner Platz 1 > 80804 München > Tel.: 089/3068-2492 > Fax.: 089/3068-3913 > email: Andreas.Marx@extern.lrz-muenchen.de > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 18 13:08:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182Uzs-0006FS-00; Fri, 18 Oct 2002 13:08:52 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id C4C031112F4 for ; Fri, 18 Oct 2002 12:39:50 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNT7WKCWBK8XPLS5@med.uu.nl> for kok@radth.med.uu.nl; Fri, 18 Oct 2002 13:07:07 +0200 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNT7WI36YC8XMWPN@med.uu.nl> for kok@radth.med.uu.nl; Fri, 18 Oct 2002 13:07:04 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA25193 for linac-eng-list; Fri, 18 Oct 2002 04:19:20 -0500 (CDT) Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA25189 for ; Fri, 18 Oct 2002 04:19:18 -0500 (CDT) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 182THF-0002TN-00; Fri, 18 Oct 2002 10:18:41 +0100 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3D908C0F0035743F for linac-eng@plato.aristotle.net; Fri, 18 Oct 2002 10:18:41 +0100 Received: from email.rbbh_msdomain1 (195.104.159.2) by relay.nhs.uk (Syntegra-4 6.5.026) id 3DAC83C8000C24E2 for linac-eng@plato.aristotle.net; Fri, 18 Oct 2002 10:18:41 +0100 Received: by email.rbbh-tr.nhs.uk with Internet Mail Service (5.5.2653.19) id <4Y1AZFZN>; Fri, 18 Oct 2002 10:17:46 +0100 Date: Fri, 18 Oct 2002 10:17:43 +0100 From: Whittard Paul Subject: RE: Hyroglphen at the Boot-Process Sender: owner-linac-eng@plato.aristotle.net To: 'linac-eng' Message-id: <5237066EDDFDC14697C9231BAF3EDFA32B2CAE@marge.rbbh-tr.nhs.uk> MIME-version: 1.0 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25190 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 18 Oct 2002 10:17:43 +0100 From: Whittard Paul Subject: RE: Hyroglphen at the Boot-Process Sender: owner-linac-eng@plato.aristotle.net To: 'linac-eng' X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA25190 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Andreas. This sounds like a character set selection problem on the display terminal. I am guessing here, but it may be that the display terminal itself switches on with a particular default character set. At a certain stage in the linac control system boot process an instruction will be issued to the terminals to ensure that the correct character set is being used internally by the terminal itself. Try checking the programming of the terminals The specifics probably depend on the age, and therefore configuration, of your machine. Paul Whittard Royal Berkshire Hospital Reading RG1 5AN Tel: +44 (0) 118 9877 355 Fax: +44 (0) 118 9877 377 > -----Original Message----- > From: Andreas Marx [SMTP:Andreas.Marx@extern.lrz-muenchen.de] > Sent: 17 October 2002 16:52 > To: linac-eng@plato.aristotle.net > Subject: Hyroglphen at the Boot-Process > > When we boot our SL 20 we cannot read anything because of hyroglyphen. > When the Boot-Process reaches the date/time screen and if we press Enter > > then all Hyroglyphen are gone and it is possible to read the screen. > > We have already changed: > > - Primary PC > - Network PCB in the Javelin > - Switched the V24 interface in the Javelin: Primary PC <-->Printer > - Switched the Network Cable from Slot 6-->7 in the HUB > > If you have any ideas, please let us know! > > Thank you very much! > > > > -- > Krankenhaus München Schwabing > Institut für Medizinische Physik und Strahlenschutz > Andreas Marx > Kölner Platz 1 > 80804 München > Tel.: 089/3068-2492 > Fax.: 089/3068-3913 > email: Andreas.Marx@extern.lrz-muenchen.de > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Oct 18 21:14:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182ca1-0004tg-00; Fri, 18 Oct 2002 21:14:41 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 182D61112F4; Fri, 18 Oct 2002 20:45:29 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA05012 for linac-eng-list; Fri, 18 Oct 2002 13:43:47 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r04.mx.aol.com (imo-r04.mx.aol.com [152.163.225.100]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA05008 for ; Fri, 18 Oct 2002 13:43:45 -0500 (CDT) From: RSAINC1@aol.com Received: from RSAINC1@aol.com by imo-r04.mx.aol.com (mail_out_v34.13.) id y.196.f46bdc8 (4262) for ; Fri, 18 Oct 2002 14:43:07 -0400 (EDT) Message-ID: <196.f46bdc8.2ae1b03a@aol.com> Date: Fri, 18 Oct 2002 14:43:06 EDT Subject: Roughing Pump for Sale To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_196.f46bdc8.2ae1b03a_boundary" X-Mailer: AOL 8.0 for Windows US sub 180 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: RSAINC1@aol.com Date: Fri, 18 Oct 2002 14:43:06 EDT Subject: Roughing Pump for Sale To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_196.f46bdc8.2ae1b03a_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit If anyone is interested in a like new (in the box) roughing pump for Varian accelerators, let me know. Price negotiable. Roger Wood RSAINC1@Aol.com --part1_196.f46bdc8.2ae1b03a_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit If anyone is interested in a like new (in the box) roughing pump for Varian accelerators, let me know.  Price negotiable. 
    Roger Wood
    RSAINC1@Aol.com     --part1_196.f46bdc8.2ae1b03a_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 19 00:03:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182fDV-0006SD-00; Sat, 19 Oct 2002 00:03:37 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 017281112F4; Fri, 18 Oct 2002 23:34:22 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA19558 for linac-eng-list; Fri, 18 Oct 2002 16:43:16 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA19554 for ; Fri, 18 Oct 2002 16:43:14 -0500 (CDT) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA6F7F for ; Fri, 18 Oct 2002 16:40:10 -0500 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Fri, 18 Oct 2002 16:42:42 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Fri, 18 Oct 2002 16:42:37 -0500 From: "Stephen Jordan" To: Subject: Varis 6.2 with MMLC Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 18 Oct 2002 16:42:37 -0500 From: "Stephen Jordan" To: Subject: Varis 6.2 with MMLC Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net We have two frequent problems related to the Millenium MLC that I have yet to grasp: 1) The Varis workstation (which also has MLC, ProtalVision apps loaded on it) slows down terribly, and sometimes locks up. When I view the processes under NT task manager, the MLCCOMM.exe process shows 90-93% CPU usage. If I kill this process, the Varis application speeds up noticeably. Any ideas? 2) Every two weeks or so, the mlc hyperterminal program in Startup ceases to start upon boot; when I try to manually start the mlc hyperterm, it gives a "Dr. Watson" error, as if it's corrupted. The only way to run mlc hyperterm at that point is to delete the current mlc hyperterm, and re-create it. This particular phenomenon happens to two identical systems (one 21EX, the other a 2100CD). I'm not versed enough in NT to be able to ascertain the exact cause, and our IT dept. is less than happy to help. Any help will be appreciated! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 19 10:38:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 182p7j-0003zV-00; Sat, 19 Oct 2002 10:38:19 +0200 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id C48111112F4 for ; Sat, 19 Oct 2002 10:08:52 +0200 (METDST) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KNUGLPKCQ88XP5XQ@med.uu.nl> for kok@radth.med.uu.nl; Sat, 19 Oct 2002 10:34:10 +0200 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KNTWPPEP808XOYNX@med.uu.nl> for kok@radth.med.uu.nl; Sat, 19 Oct 2002 00:57:02 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA19558 for linac-eng-list; Fri, 18 Oct 2002 16:43:16 -0500 (CDT) Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA19554 for ; Fri, 18 Oct 2002 16:43:14 -0500 (CDT) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA6F7F for ; Fri, 18 Oct 2002 16:40:10 -0500 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Fri, 18 Oct 2002 16:42:42 -0500 Date: Fri, 18 Oct 2002 16:42:37 -0500 From: Stephen Jordan Subject: Varis 6.2 with MMLC Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.2 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 18 Oct 2002 16:42:37 -0500 From: Stephen Jordan Subject: Varis 6.2 with MMLC Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f We have two frequent problems related to the Millenium MLC that I have yet to grasp: 1) The Varis workstation (which also has MLC, ProtalVision apps loaded on it) slows down terribly, and sometimes locks up. When I view the processes under NT task manager, the MLCCOMM.exe process shows 90-93% CPU usage. If I kill this process, the Varis application speeds up noticeably. Any ideas? 2) Every two weeks or so, the mlc hyperterminal program in Startup ceases to start upon boot; when I try to manually start the mlc hyperterm, it gives a "Dr. Watson" error, as if it's corrupted. The only way to run mlc hyperterm at that point is to delete the current mlc hyperterm, and re-create it. This particular phenomenon happens to two identical systems (one 21EX, the other a 2100CD). I'm not versed enough in NT to be able to ascertain the exact cause, and our IT dept. is less than happy to help. Any help will be appreciated! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 22 21:00:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1844GR-0008NB-00; Tue, 22 Oct 2002 21:00:27 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 327371112F2; Tue, 22 Oct 2002 20:29:20 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA28189 for linac-eng-list; Tue, 22 Oct 2002 13:31:39 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA28185 for ; Tue, 22 Oct 2002 13:31:37 -0500 (CDT) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA09566; Tue, 22 Oct 2002 13:27:55 -0500 (CDT) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C5A.00651D53 ; Tue, 22 Oct 2002 13:24:26 -0500 X-Lotus-FromDomain: MDACC To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net Message-ID: <86256C5A.00651393.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 22 Oct 2002 13:24:37 -0500 Subject: Re: Varis 6.2 with MMLC Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Stephen Jordan" Cc: linac-eng@plato.aristotle.net Date: Tue, 22 Oct 2002 13:24:37 -0500 Subject: Re: Varis 6.2 with MMLC Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Stephen, We don't use Varis here, but as for your second problem, we've seen it here several times as well. What I have done is the following: (1) make sure you only have one Hyperterminal executable program on your hard drive (and that it works), (2) make your MLCHyper.ht file read-only, and (3) put a shortcut to it in your startup folder. So far this has been a successful resolution. Chad "Stephen Jordan" on 10/18/2002 04:42:37 PM To: linac-eng@plato.aristotle.net cc: (bcc: Chad L. Fikes/MDACC) Subject: Varis 6.2 with MMLC We have two frequent problems related to the Millenium MLC that I have yet to grasp: 1) The Varis workstation (which also has MLC, ProtalVision apps loaded on it) slows down terribly, and sometimes locks up. When I view the processes under NT task manager, the MLCCOMM.exe process shows 90-93% CPU usage. If I kill this process, the Varis application speeds up noticeably. Any ideas? 2) Every two weeks or so, the mlc hyperterminal program in Startup ceases to start upon boot; when I try to manually start the mlc hyperterm, it gives a "Dr. Watson" error, as if it's corrupted. The only way to run mlc hyperterm at that point is to delete the current mlc hyperterm, and re-create it. This particular phenomenon happens to two identical systems (one 21EX, the other a 2100CD). I'm not versed enough in NT to be able to ascertain the exact cause, and our IT dept. is less than happy to help. Any help will be appreciated! Steve Jordan UAB Rad Physics 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 23 21:12:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 184QvK-0001Pp-00; Wed, 23 Oct 2002 21:12:10 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 482101112F2; Wed, 23 Oct 2002 20:40:34 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA18321 for linac-eng-list; Wed, 23 Oct 2002 13:47:11 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f92.pav1.hotmail.com [64.4.31.92]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA18317 for ; Wed, 23 Oct 2002 13:47:10 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 23 Oct 2002 11:46:39 -0700 Received: from 142.92.65.10 by pv1fd.pav1.hotmail.msn.com with HTTP; Wed, 23 Oct 2002 18:46:39 GMT X-Originating-IP: [142.92.65.10] From: "Oktay Ureten" To: linac-eng@plato.aristotle.net Subject: Linac Engineers Wanted Date: Wed, 23 Oct 2002 18:46:39 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 23 Oct 2002 18:46:39.0585 (UTC) FILETIME=[85BED510:01C27AC4] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [142.92.65.10] From: "Oktay Ureten" To: linac-eng@plato.aristotle.net Subject: Linac Engineers Wanted Date: Wed, 23 Oct 2002 18:46:39 +0000 X-OriginalArrivalTime: 23 Oct 2002 18:46:39.0585 (UTC) FILETIME=[85BED510:01C27AC4] Sender: owner-linac-eng@plato.aristotle.net Hi linac engineers ! A service company in Turkey needs qualified linac engineers for installation, calibration and maintenance of Varian Clinac machines. These are supposed to be short term offers though the company might want to contact the engineers for future offers time after time. If interested, please contact me at ureten@ieee.org for detailed information. Regards, Oktay Ureten _________________________________________________________________ Unlimited Internet access for only $21.95/month. Try MSN! http://resourcecenter.msn.com/access/plans/2monthsfree.asp 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 23 22:08:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 184Rnz-0001rV-00; Wed, 23 Oct 2002 22:08:39 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C31921112F3; Wed, 23 Oct 2002 21:37:02 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA19284 for linac-eng-list; Wed, 23 Oct 2002 14:28:15 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA19280 for ; Wed, 23 Oct 2002 14:28:13 -0500 (CDT) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Wed, 23 Oct 2002 13:27:27 -0600 Received: (from spc164 [172.24.56.164]) by neried.scf.sk.ca (NAVGW 2.5.2.12) with SMTP id M2002102313325117040 for ; Wed, 23 Oct 2002 13:32:51 -0600 From: "Chris Barnardo" To: "Linac-Engineers, Listserver (E-mail)" Subject: Philips SLS-38 Simulator Date: Wed, 23 Oct 2002 13:28:22 -0600 Message-ID: <000601c27aca$5a664730$a43818ac@scadomain.local> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0007_01C27A98.0FCBD730" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Barnardo" To: "Linac-Engineers, Listserver (E-mail)" Subject: Philips SLS-38 Simulator Date: Wed, 23 Oct 2002 13:28:22 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0007_01C27A98.0FCBD730 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit We have a Philips SLS 38 Simulator with a Super 80 Generator. We have an error 3566 occuring on the generator. The help text in the manual refers us to a document CP-N14 or DO-N3. Does anyone have a copy of this Philips document that they could Fax us. please let me know. Also, if you have seen this error, and can shine any light on a probable cause any info would be appreciated. Thanks in advance Chris Barnardo Physics Tech Saskatoon Cancer Centre 20 Campus Drive Saskatoon, Sk Canada S7N 4H4 Ph: (306) 655-2699 Fax: (306) 655-2701 e-mail: cbarnardo@scf.sk.ca ------=_NextPart_000_0007_01C27A98.0FCBD730 Content-Type: text/x-vcard; name="Barnardo Chris (E-mail).vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Barnardo Chris (E-mail).vcf" BEGIN:VCARD VERSION:2.1 N:Chris;Barnardo FN:Barnardo Chris (E-mail) EMAIL;PREF;INTERNET:cbarnardo@scf.sk.ca REV:20020812T185719Z END:VCARD ------=_NextPart_000_0007_01C27A98.0FCBD730-- 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Oct 26 20:55:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 185W5m-0004LI-00; Sat, 26 Oct 2002 20:55:26 +0200 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 82AD31112F1; Sat, 26 Oct 2002 21:00:00 +0200 (METDST) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA21026 for linac-eng-list; Sat, 26 Oct 2002 13:28:48 -0500 (CDT) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from jupiter.icr.ac.uk (jupiter.icr.ac.uk [193.62.219.60]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA21022 for ; Sat, 26 Oct 2002 13:28:46 -0500 (CDT) Received: from malin.icr.ac.uk (malin.icr.ac.uk [193.62.219.3]) by jupiter.icr.ac.uk (8.12.1/8.12.1) with ESMTP id g9QIRpLx024095; Sat, 26 Oct 2002 19:27:51 +0100 (BST) Received: from Jupiter.icr.ac.uk (sutton4130.icr.ac.uk [194.81.85.130]) by malin.icr.ac.uk (8.9.1b+Sun/8.9.3) with SMTP id TAA22875; Sat, 26 Oct 2002 19:27:51 +0100 (BST) From: Dave Convery Reply-To: d.convery@icr.ac.uk To: linac-eng@plato.aristotle.net Subject: Vacancy: Head of Radiotherapy Engineering, MTO 5** Message-ID: Date: Sat, 26 Oct 2002 19:27:28 +0100 (GMT Daylight Time) X-Mailer: Simeon for Win32 Version 4.1.5 Build (43) X-Authentication: IMSP MIME-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII X-MailScanner: Found to be clean Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id NAA21023 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Dave Convery Reply-To: d.convery@icr.ac.uk To: linac-eng@plato.aristotle.net Subject: Vacancy: Head of Radiotherapy Engineering, MTO 5** Date: Sat, 26 Oct 2002 19:27:28 +0100 (GMT Daylight Time) X-Authentication: IMSP X-MailScanner: Found to be clean X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by plato.aristotle.net id NAA21023 Sender: owner-linac-eng@plato.aristotle.net The following advert is due to appear in the next issue of the IPEM Placement Service Circular THE ROYAL MARSDEN NHS TRUST AND THE INSTITUTE OF CANCER RESEARCH Joint Department of Physics, Downs Road, Sutton, Surrey SM2 5PT HEAD OF RADIOTHERAPY ENGINEERING MTO 5** £28884 to £36141 inclusive A key vacancy exists for an energetic and experienced engineer to manage and participate in the work of the radiotherapy engineering section in this prestigious cancer hospital. The group is primarily responsible for performance monitoring, trouble shooting and routine servicing of five Elekta linacs, two cobalt units, a kilo-voltage x-ray unit and two simulators in the Radiotherapy Department. The group also services, develops and manufactures equipment to support and improve the quality of the radiotherapy service to patients. A radiotherapy department extension containing four linac bunkers is planned for 2005 and a radiotherapy CT scanner is to be installed early next year. A positive approach with the ability to communicate well, motivate staff and work flexible hours is essential in this important position within the radiotherapy service. Suitable candidates should ideally be qualified to HNC or degree level and must have considerable experience of radiotherapy technology. Familiarity with medical imaging equipment, computing and networking systems and a flair for practical electro-mechanical development work would be advantageous. For further details and to arrange an informal visit, please contact David Convery (email: d.convery@icr.ac.uk or phone 020 8661 3474), or Jim Warrington (email: jimw@icr.ac.uk or phone 020 8661 3479). For a job description and application form, please contact The Human Resources Department on 020 8661 3060. Closing date: Friday, November 20th 2002 Committed to equal opportunities in employment. ------------------------------------------------------ FROM: Dr Dave Convery Joint Department of Physics Institute of Cancer Research & Royal Marsden NHS Trust Sutton Surrey SM2 5PT United Kingdom Tel: (+44) (0)20 8661 3474 (direct line) (+44) (0)20 8642 6011, Extension 1102 (cordless) Fax: (+44) (0)20 8643 3812 Email: d.convery@icr.ac.uk 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Oct 29 23:47:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 186f9A-00016E-00; Tue, 29 Oct 2002 23:47:40 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 33B4B1112F1; Tue, 29 Oct 2002 23:50:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA03632 for linac-eng-list; Tue, 29 Oct 2002 16:19:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA03628 for ; Tue, 29 Oct 2002 16:19:11 -0600 (CST) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA6418 for ; Tue, 29 Oct 2002 16:16:07 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Tue, 29 Oct 2002 16:18:29 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Tue, 29 Oct 2002 16:16:32 -0600 From: "Stephen Jordan" To: Subject: GFIL during gun motor pot usage 2100CD sn 1007 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 29 Oct 2002 16:16:32 -0600 From: "Stephen Jordan" To: Subject: GFIL during gun motor pot usage 2100CD sn 1007 Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Hello again folks, I have been able to duplicate the GFIL i/l at will by first moding up an Xray energy, enabling gun motor pot, overriding the flashing GFIL i/l, and changing X energies. The GFIL at that point will require a system shutdown (emergency off) to clear. I have not witnessed any abnormal Gun controller messages. It has only happened when I am attempting to tune the systems' X energies. I have had three responses, all suggesting that an error with the A/D or Gun processor may be the cause. Given the repeatability listed above, would your opinions be the same? Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 30 09:51:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 186oZO-00071m-00; Wed, 30 Oct 2002 09:51:22 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 611511112F1 for ; Wed, 30 Oct 2002 09:54:12 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KO9QWQMAZ48XT4E7@med.uu.nl> for kok@radth.med.uu.nl; Wed, 30 Oct 2002 09:26:15 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KO9AEMKXSS8XW2O4@med.uu.nl> for kok@radth.med.uu.nl; Wed, 30 Oct 2002 01:10:50 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA03632 for linac-eng-list; Tue, 29 Oct 2002 16:19:13 -0600 (CST) Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA03628 for ; Tue, 29 Oct 2002 16:19:11 -0600 (CST) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA6418 for ; Tue, 29 Oct 2002 16:16:07 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Tue, 29 Oct 2002 16:18:29 -0600 Date: Tue, 29 Oct 2002 16:16:32 -0600 From: Stephen Jordan Subject: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.2 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 29 Oct 2002 16:16:32 -0600 From: Stephen Jordan Subject: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hello again folks, I have been able to duplicate the GFIL i/l at will by first moding up an Xray energy, enabling gun motor pot, overriding the flashing GFIL i/l, and changing X energies. The GFIL at that point will require a system shutdown (emergency off) to clear. I have not witnessed any abnormal Gun controller messages. It has only happened when I am attempting to tune the systems' X energies. I have had three responses, all suggesting that an error with the A/D or Gun processor may be the cause. Given the repeatability listed above, would your opinions be the same? Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 30 17:41:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 186vuW-0006Dv-00; Wed, 30 Oct 2002 17:41:40 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 169BA1112F1; Wed, 30 Oct 2002 17:44:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA18276 for linac-eng-list; Wed, 30 Oct 2002 09:57:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU ([132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA18272 for ; Wed, 30 Oct 2002 09:57:50 -0600 (CST) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2655.55) id ; Wed, 30 Oct 2002 10:57:19 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F07C@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Stephen Jordan'" , linac-eng@plato.aristotle.net Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Date: Wed, 30 Oct 2002 10:57:17 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Stephen Jordan'" , linac-eng@plato.aristotle.net Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Date: Wed, 30 Oct 2002 10:57:17 -0500 Sender: owner-linac-eng@plato.aristotle.net Can you clear it by switching off the gun deck only? This should indicate whether it is in the deck or in the linac console. It also is much faster and gentler than emergency off. If in the console, will a soft reboot, CTRL-ALT-DEL in standby, clear it? Another trick is to request Physics mode, don't bother with the password, and exit from physics. This initializes some stuff, and is pretty fast. If these tricks don't work, Eoff is probably resetting the STD Bus to clear the latched interlock, which can be done on the bus with the reset button, in standby. There are a few things that only power down will clear, but are less likely. I had had some of these phantom GFILS where the A/D+ message was very fleeting, I only happened to see it when switching modes inside the room and watching the gun deck display. If the crowbar and cover circuit is suspect, vibration causing a latching interlock, bypassing it is a good troubleshooting technique. Look forward to your next installment. Jerry -----Original Message----- From: Stephen Jordan [mailto:srjordan@uabmc.edu] Sent: Tuesday, October 29, 2002 5:17 PM To: linac-eng@plato.aristotle.net Subject: GFIL during gun motor pot usage 2100CD sn 1007 Hello again folks, I have been able to duplicate the GFIL i/l at will by first moding up an Xray energy, enabling gun motor pot, overriding the flashing GFIL i/l, and changing X energies. The GFIL at that point will require a system shutdown (emergency off) to clear. I have not witnessed any abnormal Gun controller messages. It has only happened when I am attempting to tune the systems' X energies. I have had three responses, all suggesting that an error with the A/D or Gun processor may be the cause. Given the repeatability listed above, would your opinions be the same? Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 30 20:10:03 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 186yE7-0006aX-00; Wed, 30 Oct 2002 20:10:03 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2449B1112F1; Wed, 30 Oct 2002 20:12:39 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA21740 for linac-eng-list; Wed, 30 Oct 2002 12:39:21 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA21735 for ; Wed, 30 Oct 2002 12:39:19 -0600 (CST) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.5329); Wed, 30 Oct 2002 13:40:59 -0500 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C28043.E37D3596" Subject: FW: Anyone have Graphics card used in old ROCS Systems? X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Wed, 30 Oct 2002 13:40:58 -0500 Message-ID: X-MS-TNEF-Correlator: Thread-Topic: Anyone have Graphics card used in old ROCS Systems? Thread-Index: AcKANMUTgK0rx3SKRCCS0Xbm9liEtAADfLVA From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 30 Oct 2002 18:40:59.0300 (UTC) FILETIME=[E3CFB640:01C28043] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Subject: FW: Anyone have Graphics card used in old ROCS Systems? X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Wed, 30 Oct 2002 13:40:58 -0500 X-MS-TNEF-Correlator: Thread-Topic: Anyone have Graphics card used in old ROCS Systems? Thread-Index: AcKANMUTgK0rx3SKRCCS0Xbm9liEtAADfLVA From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 30 Oct 2002 18:40:59.0300 (UTC) FILETIME=[E3CFB640:01C28043] Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C28043.E37D3596 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Does anyone have any leads on where to obtain a spare graphics card of = the=20 following type? "Matrox MGA Impression Plus", ISA bus (It's the card which was used in the old ROCS Systems.) P.S. Yes, I know the card represents dated technology. But please, no=20 jokes about checking out the basement of the Smithsonian... ~~~~~~~~~~~~~~~~~~~~~~~~~~ Al Aqualino U.Va. Radiological Physics mailto:aa2h@virginia.edu voice: 434-982-0781 fax: 434-982-0792 ~~~~~~~~~~~~~~~~~~~~~~~~~~ Giuseppe 'Joe' Orsolini RT(T) =20 Service Engineer=20 2002-2004 Cancer Center Employee Council Rep =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) ------_=_NextPart_001_01C28043.E37D3596 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 ------_=_NextPart_001_01C28043.E37D3596-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 30 22:17:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1870Dp-0006oN-00; Wed, 30 Oct 2002 22:17:53 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id E42621112F1 for ; Wed, 30 Oct 2002 22:20:27 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOAIKAWRGG8XQLB1@med.uu.nl> for kok@radth.med.uu.nl; Wed, 30 Oct 2002 22:15:20 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOAIK8KGUS8XOA57@med.uu.nl> for kok@radth.med.uu.nl; Wed, 30 Oct 2002 22:15:13 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA23078 for linac-eng-list; Wed, 30 Oct 2002 13:37:39 -0600 (CST) Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA23073 for ; Wed, 30 Oct 2002 13:37:36 -0600 (CST) Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA04071; Wed, 30 Oct 2002 13:33:59 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C62.006B2931 ; Wed, 30 Oct 2002 13:30:28 -0600 Date: Wed, 30 Oct 2002 13:30:55 -0600 From: vortiz@mail.mdanderson.org Subject: Re: FW: Anyone have Graphics card used in old ROCS Systems? Sender: owner-linac-eng@plato.aristotle.net To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" Message-id: <86256C62.006B275B.00@utm-notesob1.mdacc.tmc.edu> MIME-version: 1.0 Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_z371mBjYQxVLrh1zOOr8qg)" Precedence: bulk X-Lotus-FromDomain: MDACC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 30 Oct 2002 13:30:55 -0600 From: vortiz@mail.mdanderson.org Subject: Re: FW: Anyone have Graphics card used in old ROCS Systems? Sender: owner-linac-eng@plato.aristotle.net To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" X-Lotus-FromDomain: MDACC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f --Boundary_(ID_z371mBjYQxVLrh1zOOr8qg) Content-type: text/plain; charset=us-ascii Content-disposition: inline Hey, if it works, Keep using it !!!! "Orsolini, Joe D" on 10/30/2002 12:40:58 PM To: "Linac-Eng (E-mail)" cc: (bcc: Vincente Ortiz/MDACC) Subject: FW: Anyone have Graphics card used in old ROCS Systems? Does anyone have any leads on where to obtain a spare graphics card of the following type? "Matrox MGA Impression Plus", ISA bus (It's the card which was used in the old ROCS Systems.) P.S. Yes, I know the card represents dated technology. But please, no jokes about checking out the basement of the Smithsonian... ~~~~~~~~~~~~~~~~~~~~~~~~~~ Al Aqualino U.Va. Radiological Physics mailto:aa2h@virginia.edu voice: 434-982-0781 fax: 434-982-0792 ~~~~~~~~~~~~~~~~~~~~~~~~~~ Giuseppe 'Joe' Orsolini RT(T) Service Engineer 2002-2004 Cancer Center Employee Council Rep University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) --Boundary_(ID_z371mBjYQxVLrh1zOOr8qg) Content-type: application/octet-stream; name=winmail.dat Content-disposition: attachment; filename=winmail.dat Content-transfer-encoding: BASE64 --Boundary_(ID_z371mBjYQxVLrh1zOOr8qg)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 30 22:38:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1870Y8-0006sn-00; Wed, 30 Oct 2002 22:38:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CD6291112F1; Wed, 30 Oct 2002 22:41:25 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA25829 for linac-eng-list; Wed, 30 Oct 2002 15:15:56 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA25823 for ; Wed, 30 Oct 2002 15:15:44 -0600 (CST) Received: from Unknown [192.191.191.250] by mail1.radiological.com - SurfControl E-mail Filter (4.5); Wednesday, 30 October 2002, 13:15:56 Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Wed, 30 Oct 2002 13:15:39 -0800 Message-ID: From: "Nelson Lacsina" To: , , Date: Wed, 30 Oct 2002 13:15:13 -0800 Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Mailer: Novell GroupWise Internet Agent 6.0 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA25824 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson Lacsina" To: , , Date: Wed, 30 Oct 2002 13:15:13 -0800 Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA25824 Sender: owner-linac-eng@plato.aristotle.net It is very unusual that this is (from my understanding ) only happening during your tuning of the x energies.....As we know once we enable gun pot it continues to flash until we disable it again....So what you are saying is that after tuning, and disabling of the gun motor pot (turning it back off), the GFIL interlock remains and cannot be cleared, Is that correct?....You are also stating that gun deck display indicates no interlocks active (it says RUN OK and whatever energy your on)...If all these things are true then I would look at your GFIl interlock opto-coupler on your Input Interface #2 board....Although I am very surprised that you are not getting this interlock during the treatment day....I would look at the gun deck display and make sure it truly does not have an error such as a run IL error...I don't think it would be your A/D because the processor will usually give you A/D +- arrors when it loses conversion data...... Let me know how it turns out Nelson >>> "Maddox, Buford J" 10/30/02 07:57AM >>> Can you clear it by switching off the gun deck only? This should indicate whether it is in the deck or in the linac console. It also is much faster and gentler than emergency off. If in the console, will a soft reboot, CTRL-ALT-DEL in standby, clear it? Another trick is to request Physics mode, don't bother with the password, and exit from physics. This initializes some stuff, and is pretty fast. If these tricks don't work, Eoff is probably resetting the STD Bus to clear the latched interlock, which can be done on the bus with the reset button, in standby. There are a few things that only power down will clear, but are less likely. I had had some of these phantom GFILS where the A/D+ message was very fleeting, I only happened to see it when switching modes inside the room and watching the gun deck display. If the crowbar and cover circuit is suspect, vibration causing a latching interlock, bypassing it is a good troubleshooting technique. Look forward to your next installment. Jerry -----Original Message----- From: Stephen Jordan [mailto:srjordan@uabmc.edu] Sent: Tuesday, October 29, 2002 5:17 PM To: linac-eng@plato.aristotle.net Subject: GFIL during gun motor pot usage 2100CD sn 1007 Hello again folks, I have been able to duplicate the GFIL i/l at will by first moding up an Xray energy, enabling gun motor pot, overriding the flashing GFIL i/l, and changing X energies. The GFIL at that point will require a system shutdown (emergency off) to clear. I have not witnessed any abnormal Gun controller messages. It has only happened when I am attempting to tune the systems' X energies. I have had three responses, all suggesting that an error with the A/D or Gun processor may be the cause. Given the repeatability listed above, would your opinions be the same? Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Oct 30 22:53:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1870m0-0006tf-00; Wed, 30 Oct 2002 22:53:12 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 240751112F1; Wed, 30 Oct 2002 22:55:45 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA26269 for linac-eng-list; Wed, 30 Oct 2002 15:33:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA26265 for ; Wed, 30 Oct 2002 15:33:02 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2655.55) id ; Wed, 30 Oct 2002 16:32:31 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F080@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Nelson Lacsina'" , linac-eng@plato.aristotle.net, srjordan@uabmc.edu Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Date: Wed, 30 Oct 2002 16:32:31 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Nelson Lacsina'" , linac-eng@plato.aristotle.net, srjordan@uabmc.edu Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Date: Wed, 30 Oct 2002 16:32:31 -0500 Sender: owner-linac-eng@plato.aristotle.net Tx to Nelson for jumping in! I have seen two cases of A/D+ errors from the a/d580 ref ic being flakey. Another was the little 15v PS on to of the hot deck. Forgot to mention the details. Anyone else? Jerry -----Original Message----- From: Nelson Lacsina [mailto:lacsinan@radiological.com] Sent: Wednesday, October 30, 2002 4:15 PM To: Maddox, Buford J; linac-eng@plato.aristotle.net; srjordan@uabmc.edu Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 It is very unusual that this is (from my understanding ) only happening during your tuning of the x energies.....As we know once we enable gun pot it continues to flash until we disable it again....So what you are saying is that after tuning, and disabling of the gun motor pot (turning it back off), the GFIL interlock remains and cannot be cleared, Is that correct?....You are also stating that gun deck display indicates no interlocks active (it says RUN OK and whatever energy your on)...If all these things are true then I would look at your GFIl interlock opto-coupler on your Input Interface #2 board....Although I am very surprised that you are not getting this interlock during the treatment day....I would look at the gun deck display and make sure it truly does not have an error such as a run IL error...I don't think it would be your A/D because the processor will usually give you A/D +- arrors when it loses conversion data...... Let me know how it turns out Nelson >>> "Maddox, Buford J" 10/30/02 07:57AM >>> Can you clear it by switching off the gun deck only? This should indicate whether it is in the deck or in the linac console. It also is much faster and gentler than emergency off. If in the console, will a soft reboot, CTRL-ALT-DEL in standby, clear it? Another trick is to request Physics mode, don't bother with the password, and exit from physics. This initializes some stuff, and is pretty fast. If these tricks don't work, Eoff is probably resetting the STD Bus to clear the latched interlock, which can be done on the bus with the reset button, in standby. There are a few things that only power down will clear, but are less likely. I had had some of these phantom GFILS where the A/D+ message was very fleeting, I only happened to see it when switching modes inside the room and watching the gun deck display. If the crowbar and cover circuit is suspect, vibration causing a latching interlock, bypassing it is a good troubleshooting technique. Look forward to your next installment. Jerry -----Original Message----- From: Stephen Jordan [mailto:srjordan@uabmc.edu] Sent: Tuesday, October 29, 2002 5:17 PM To: linac-eng@plato.aristotle.net Subject: GFIL during gun motor pot usage 2100CD sn 1007 Hello again folks, I have been able to duplicate the GFIL i/l at will by first moding up an Xray energy, enabling gun motor pot, overriding the flashing GFIL i/l, and changing X energies. The GFIL at that point will require a system shutdown (emergency off) to clear. I have not witnessed any abnormal Gun controller messages. It has only happened when I am attempting to tune the systems' X energies. I have had three responses, all suggesting that an error with the A/D or Gun processor may be the cause. Given the repeatability listed above, would your opinions be the same? Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 31 11:00:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187C7U-0000cK-00; Thu, 31 Oct 2002 11:00:08 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2C9161112F5; Thu, 31 Oct 2002 11:02:26 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA09920 for linac-eng-list; Thu, 31 Oct 2002 03:36:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m05.mx.aol.com (imo-m05.mx.aol.com [64.12.136.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA09916 for ; Thu, 31 Oct 2002 03:36:37 -0600 (CST) From: Rtsolution@aol.com Received: from Rtsolution@aol.com by imo-m05.mx.aol.com (mail_out_v34.13.) id y.a2.2e66d649 (3980) for ; Thu, 31 Oct 2002 04:36:03 -0500 (EST) Message-ID: Date: Thu, 31 Oct 2002 04:36:02 EST Subject: Re: GFIL during gun motor pot usage 2100CD sn 1007 To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_a2.2e66d649.2af25382_boundary" X-Mailer: AOL 7.0 for Windows UK sub 10502 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Rtsolution@aol.com Date: Thu, 31 Oct 2002 04:36:02 EST Subject: Re: GFIL during gun motor pot usage 2100CD sn 1007 To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_a2.2e66d649.2af25382_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit One can easily forget that although there is no I/L at gun deck when looking at it, one has to override the gundeck switch to clear GFIL. Rtsolution --part1_a2.2e66d649.2af25382_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit One can easily forget that although there is no I/L at gun deck when looking at it, one has to override the gundeck switch to clear GFIL.

    Rtsolution     --part1_a2.2e66d649.2af25382_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 31 12:36:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187Dco-0001i8-00; Thu, 31 Oct 2002 12:36:34 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9096F1112F5 for ; Thu, 31 Oct 2002 12:38:51 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOBCKI9S4G8XUANZ@med.uu.nl> for kok@radth.med.uu.nl; Thu, 31 Oct 2002 12:34:26 +0100 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOBCKFFQY68XWQ4V@med.uu.nl> for kok@radth.med.uu.nl; Thu, 31 Oct 2002 12:34:22 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA09920 for linac-eng-list; Thu, 31 Oct 2002 03:36:38 -0600 (CST) Received: from imo-m05.mx.aol.com (imo-m05.mx.aol.com [64.12.136.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA09916 for ; Thu, 31 Oct 2002 03:36:37 -0600 (CST) Received: from Rtsolution@aol.com by imo-m05.mx.aol.com (mail_out_v34.13.) id y.a2.2e66d649 (3980) for ; Thu, 31 Oct 2002 04:36:03 -0500 (EST) Date: Thu, 31 Oct 2002 04:36:02 -0500 (EST) From: Rtsolution@aol.com Subject: Re: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: AOL 7.0 for Windows UK sub 10502 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_oCNR4OKxJkhI2gEAaPr9Fg)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 31 Oct 2002 04:36:02 -0500 (EST) From: Rtsolution@aol.com Subject: Re: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f --Boundary_(ID_oCNR4OKxJkhI2gEAaPr9Fg) Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit One can easily forget that although there is no I/L at gun deck when looking at it, one has to override the gundeck switch to clear GFIL. Rtsolution --Boundary_(ID_oCNR4OKxJkhI2gEAaPr9Fg) Content-type: text/html; charset="US-ASCII" Content-transfer-encoding: 7bit One can easily forget that although there is no I/L at gun deck when looking at it, one has to override the gundeck switch to clear GFIL.

    Rtsolution     --Boundary_(ID_oCNR4OKxJkhI2gEAaPr9Fg)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 31 13:31:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187EU2-0002N5-00; Thu, 31 Oct 2002 13:31:34 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1F77A1112F7; Thu, 31 Oct 2002 13:33:49 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA11154 for linac-eng-list; Thu, 31 Oct 2002 05:59:53 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA11150 for ; Thu, 31 Oct 2002 05:59:51 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id g9VBwgK29618; Thu, 31 Oct 2002 06:59:14 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C63.00418958 ; Thu, 31 Oct 2002 06:55:50 -0500 X-Lotus-FromDomain: LRCC To: "Maddox, Buford J" Cc: "'Nelson Lacsina'" , linac-eng@plato.aristotle.net, srjordan@uabmc.edu Message-ID: <85256C63.0041874B.00@mail.lrcc.on.ca> Date: Thu, 31 Oct 2002 06:55:43 -0500 Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Maddox, Buford J" Cc: "'Nelson Lacsina'" , linac-eng@plato.aristotle.net, srjordan@uabmc.edu Date: Thu, 31 Oct 2002 06:55:43 -0500 Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Machine: Varian 2100 CD sn 852 Last year we had a problem on our unit. We'd get sporadic GFIL interlocks throughout the day. We had a PC hooked up to the RS232 coming from the gun deck but there was nothing out of the ordinary with the information that was transmitted. We monitored the GFIL interlock line with scope and we saw these really tiny drop outs, but there was nothing captured in the error trap of the gun deck controller board. We swapped out everything on the Cold deck side one by one and it still continued to drop out intermittently on us Someone on the list mentioned the A/D chip on the hot deck board, which we have seen fail before but in a different manner, we put a new board in and the problem disappeared for a couple of days. I put a new chip in and re-installed the board and it is still running fine (as far as this problem is concerned) for a year now. My advice would be to replace the chip. It is only a couple of bucks. If it is something else let us know eh! Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 31 13:34:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187EWq-0002QX-00; Thu, 31 Oct 2002 13:34:28 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1F0B61112F7; Thu, 31 Oct 2002 13:36:43 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA11358 for linac-eng-list; Thu, 31 Oct 2002 06:12:19 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA11354 for ; Thu, 31 Oct 2002 06:12:12 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Thu, 31 Oct 2002 08:07:10 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Thu, 31 Oct 2002 08:06:59 -0400 From: "Scott Purcell" To: , , Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA11355 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 31 Oct 2002 08:06:59 -0400 From: "Scott Purcell" To: , , Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA11355 Sender: owner-linac-eng@plato.aristotle.net We had a similar problem on our 2100C s/n 708. We found it to be the micro switches on the crowbar. One of the switches was able to slide pass the plunger on the crowbar, this would cause a GFIL I/L. We could clear it by a) turning off the gun deck power supply or b) emergency off the clinac. Just a thought. cheers Scott Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada Email scott.purcell@cdha.nshealth.ca Phone: 902-473-2563 Fax: 902-473-6120 >>> "Maddox, Buford J" 10/30/02 11:57AM >>> Can you clear it by switching off the gun deck only? This should indicate whether it is in the deck or in the linac console. It also is much faster and gentler than emergency off. If in the console, will a soft reboot, CTRL-ALT-DEL in standby, clear it? Another trick is to request Physics mode, don't bother with the password, and exit from physics. This initializes some stuff, and is pretty fast. If these tricks don't work, Eoff is probably resetting the STD Bus to clear the latched interlock, which can be done on the bus with the reset button, in standby. There are a few things that only power down will clear, but are less likely. I had had some of these phantom GFILS where the A/D+ message was very fleeting, I only happened to see it when switching modes inside the room and watching the gun deck display. If the crowbar and cover circuit is suspect, vibration causing a latching interlock, bypassing it is a good troubleshooting technique. Look forward to your next installment. Jerry -----Original Message----- From: Stephen Jordan [mailto:srjordan@uabmc.edu] Sent: Tuesday, October 29, 2002 5:17 PM To: linac-eng@plato.aristotle.net Subject: GFIL during gun motor pot usage 2100CD sn 1007 Hello again folks, I have been able to duplicate the GFIL i/l at will by first moding up an Xray energy, enabling gun motor pot, overriding the flashing GFIL i/l, and changing X energies. The GFIL at that point will require a system shutdown (emergency off) to clear. I have not witnessed any abnormal Gun controller messages. It has only happened when I am attempting to tune the systems' X energies. I have had three responses, all suggesting that an error with the A/D or Gun processor may be the cause. Given the repeatability listed above, would your opinions be the same? Thanks in advance! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 31 14:26:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187FLG-0003Df-00; Thu, 31 Oct 2002 14:26:34 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 56F8E1112F1; Thu, 31 Oct 2002 14:28:47 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA12295 for linac-eng-list; Thu, 31 Oct 2002 07:07:07 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl ([212.115.200.190]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA12290 for ; Thu, 31 Oct 2002 07:07:05 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Thu, 31 Oct 2002 14:07:02 +0100 Message-ID: To: srjordan@uabmc.edu, linac-eng@plato.aristotle.net Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Date: Thu, 31 Oct 2002 14:07:02 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: srjordan@uabmc.edu, linac-eng@plato.aristotle.net Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Date: Thu, 31 Oct 2002 14:07:02 +0100 Sender: owner-linac-eng@plato.aristotle.net Hi Steve, Most of the replies covers GFIL interlocks throughout the day. As I understand your problem is only during tweaking the GFIL. We had a simmilar problem, that disapeared after changing the gun controler pcb at the cold deck. (mention: you have to retune the gun and/or take the values from the old PCB) Varian advised us to renew the PROM at our old pcb. We did this and next week we will tune this combination. good luck, Keesjan de Bruijne Biomedical Engineer Ziekenhuis Walcheren Vlissingen, the Netherlands dep. DIA cj.de.bruijne@walcheren.ziekenhuis.nl > -----Original Message----- > From: Stephen Jordan [SMTP:srjordan@uabmc.edu] > Sent: Tuesday, October 29, 2002 11:17 PM > To: linac-eng@plato.aristotle.net > Subject: GFIL during gun motor pot usage 2100CD sn 1007 > > Hello again folks, > I have been able to duplicate the GFIL i/l at will by first moding up > an Xray energy, enabling gun motor pot, overriding the flashing GFIL > i/l, and changing X energies. The GFIL at that point will require a > system shutdown (emergency off) to clear. I have not witnessed any > abnormal Gun controller messages. It has only happened when I am > attempting to tune the systems' X energies. > I have had three responses, all suggesting that an error with the A/D > or Gun processor may be the cause. Given the repeatability listed above, > would your opinions be the same? Thanks in advance! > > Steve Jordan > UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 31 14:54:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187Fmb-0003pc-00; Thu, 31 Oct 2002 14:54:49 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1E5081112F1 for ; Thu, 31 Oct 2002 14:57:03 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOBHE16NXC8XWW9T@med.uu.nl> for kok@radth.med.uu.nl; Thu, 31 Oct 2002 14:52:45 +0100 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOBHDZ73ZS8XVWJU@med.uu.nl> for kok@radth.med.uu.nl; Thu, 31 Oct 2002 14:52:43 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA11154 for linac-eng-list; Thu, 31 Oct 2002 05:59:53 -0600 (CST) Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA11150 for ; Thu, 31 Oct 2002 05:59:51 -0600 (CST) Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id g9VBwgK29618; Thu, 31 Oct 2002 06:59:14 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C63.00418958 ; Thu, 31 Oct 2002 06:55:50 -0500 Date: Thu, 31 Oct 2002 06:55:43 -0500 From: Randy.McVittie@lrcc.on.ca Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: "Maddox, Buford J" Cc: 'Nelson Lacsina' , linac-eng@plato.aristotle.net, srjordan@uabmc.edu Message-id: <85256C63.0041874B.00@mail.lrcc.on.ca> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-disposition: inline Precedence: bulk X-Lotus-FromDomain: LRCC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 31 Oct 2002 06:55:43 -0500 From: Randy.McVittie@lrcc.on.ca Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: "Maddox, Buford J" Cc: 'Nelson Lacsina' , linac-eng@plato.aristotle.net, srjordan@uabmc.edu Content-disposition: inline X-Lotus-FromDomain: LRCC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Machine: Varian 2100 CD sn 852 Last year we had a problem on our unit. We'd get sporadic GFIL interlocks throughout the day. We had a PC hooked up to the RS232 coming from the gun deck but there was nothing out of the ordinary with the information that was transmitted. We monitored the GFIL interlock line with scope and we saw these really tiny drop outs, but there was nothing captured in the error trap of the gun deck controller board. We swapped out everything on the Cold deck side one by one and it still continued to drop out intermittently on us Someone on the list mentioned the A/D chip on the hot deck board, which we have seen fail before but in a different manner, we put a new board in and the problem disappeared for a couple of days. I put a new chip in and re-installed the board and it is still running fine (as far as this problem is concerned) for a year now. My advice would be to replace the chip. It is only a couple of bucks. If it is something else let us know eh! Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Oct 31 15:31:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187GLn-0004L5-00; Thu, 31 Oct 2002 15:31:11 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id AFB891112F1 for ; Thu, 31 Oct 2002 15:33:24 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOBIO4HSO08XQNUZ@med.uu.nl> for kok@radth.med.uu.nl; Thu, 31 Oct 2002 15:29:08 +0100 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOBINZJPK68XUFZZ@med.uu.nl> for kok@radth.med.uu.nl; Thu, 31 Oct 2002 15:29:02 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA12295 for linac-eng-list; Thu, 31 Oct 2002 07:07:07 -0600 (CST) Received: from zw_ntserver_1.walcheren.ziekenhuis.nl ([212.115.200.190]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id HAA12290 for ; Thu, 31 Oct 2002 07:07:05 -0600 (CST) Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Thu, 31 Oct 2002 14:07:02 +0100 Date: Thu, 31 Oct 2002 14:07:02 +0100 From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: srjordan@uabmc.edu, linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 31 Oct 2002 14:07:02 +0100 From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Subject: RE: GFIL during gun motor pot usage 2100CD sn 1007 Sender: owner-linac-eng@plato.aristotle.net To: srjordan@uabmc.edu, linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hi Steve, Most of the replies covers GFIL interlocks throughout the day. As I understand your problem is only during tweaking the GFIL. We had a simmilar problem, that disapeared after changing the gun controler pcb at the cold deck. (mention: you have to retune the gun and/or take the values from the old PCB) Varian advised us to renew the PROM at our old pcb. We did this and next week we will tune this combination. good luck, Keesjan de Bruijne Biomedical Engineer Ziekenhuis Walcheren Vlissingen, the Netherlands dep. DIA cj.de.bruijne@walcheren.ziekenhuis.nl > -----Original Message----- > From: Stephen Jordan [SMTP:srjordan@uabmc.edu] > Sent: Tuesday, October 29, 2002 11:17 PM > To: linac-eng@plato.aristotle.net > Subject: GFIL during gun motor pot usage 2100CD sn 1007 > > Hello again folks, > I have been able to duplicate the GFIL i/l at will by first moding up > an Xray energy, enabling gun motor pot, overriding the flashing GFIL > i/l, and changing X energies. The GFIL at that point will require a > system shutdown (emergency off) to clear. I have not witnessed any > abnormal Gun controller messages. It has only happened when I am > attempting to tune the systems' X energies. > I have had three responses, all suggesting that an error with the A/D > or Gun processor may be the cause. Given the repeatability listed above, > would your opinions be the same? Thanks in advance! > > Steve Jordan > UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 06:23:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187UGx-0006P8-00; Fri, 01 Nov 2002 06:23:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 22DD51112F2; Fri, 1 Nov 2002 06:24:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA28889 for linac-eng-list; Thu, 31 Oct 2002 22:58:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web20802.mail.yahoo.com (web20802.mail.yahoo.com [216.136.226.191]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id WAA28884 for ; Thu, 31 Oct 2002 22:58:40 -0600 (CST) Message-ID: <20021101045839.35123.qmail@web20802.mail.yahoo.com> Received: from [152.104.13.246] by web20802.mail.yahoo.com via HTTP; Thu, 31 Oct 2002 20:58:39 PST Date: Thu, 31 Oct 2002 20:58:39 -0800 (PST) From: M chu Subject: Philips ultrasound part To: linac-eng@plato.aristotle.net In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 31 Oct 2002 20:58:39 -0800 (PST) From: M chu Subject: Philips ultrasound part To: linac-eng@plato.aristotle.net In-Reply-To: Sender: owner-linac-eng@plato.aristotle.net dear all, i am looking for the the spare part supplier of the Philips SD800 Ultrasound X-ray system. Our local supplier increased the spare price frequenly. Any suggestion or help is appreciated. moises chu physics department pyneh, hk __________________________________________________ Do you Yahoo!? HotJobs - Search new jobs daily now http://hotjobs.yahoo.com/ 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 08:02:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187Vp8-0006yy-00; Fri, 01 Nov 2002 08:02:30 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 256A01112F3 for ; Fri, 1 Nov 2002 08:04:23 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOCHA4QKNK8XWQKT@med.uu.nl> for kok@radth.med.uu.nl; Fri, 1 Nov 2002 08:00:24 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOCHA31WJG8XY34N@med.uu.nl> for kok@radth.med.uu.nl; Fri, 01 Nov 2002 08:00:22 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA28889 for linac-eng-list; Thu, 31 Oct 2002 22:58:42 -0600 (CST) Received: from web20802.mail.yahoo.com (web20802.mail.yahoo.com [216.136.226.191]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id WAA28884 for ; Thu, 31 Oct 2002 22:58:40 -0600 (CST) Received: from [152.104.13.246] by web20802.mail.yahoo.com via HTTP; Thu, 31 Oct 2002 20:58:39 -0800 (PST) Date: Thu, 31 Oct 2002 20:58:39 -0800 (PST) From: M chu Subject: Philips ultrasound part In-reply-to: Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: <20021101045839.35123.qmail@web20802.mail.yahoo.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 31 Oct 2002 20:58:39 -0800 (PST) From: M chu Subject: Philips ultrasound part In-reply-to: Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f dear all, i am looking for the the spare part supplier of the Philips SD800 Ultrasound X-ray system. Our local supplier increased the spare price frequenly. Any suggestion or help is appreciated. moises chu physics department pyneh, hk __________________________________________________ Do you Yahoo!? HotJobs - Search new jobs daily now http://hotjobs.yahoo.com/ 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 10:45:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187YMm-0008N5-00; Fri, 01 Nov 2002 10:45:24 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0537B1112F1; Fri, 1 Nov 2002 10:47:11 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA02230 for linac-eng-list; Fri, 1 Nov 2002 03:18:06 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.nhs.uk (mail1.nhs.uk [213.120.235.81]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA02226 for ; Fri, 1 Nov 2002 03:18:04 -0600 (CST) Received: from hn-ext by mail1.nhs.uk (Sendmail 8.8.8) with esmtp id 187Xvp-0002Vu-00; Fri, 01 Nov 2002 09:17:33 +0000 Received: from relay.nhs.uk (194.62.42.144) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3DB09EB5001D1FB8 for linac-eng@plato.aristotle.net; Fri, 1 Nov 2002 09:17:33 +0000 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-4 6.5.026) (authenticated as smtp_leedsth_nhs_uk@es2002.nhs.uk) id 3DBF0489000A787E for linac-eng@plato.aristotle.net; Fri, 1 Nov 2002 09:17:33 +0000 Received: from LTH-MTA by smtp.leedsth.nhs.uk with Novell_GroupWise; Fri, 01 Nov 2002 09:21:15 +0000 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Fri, 01 Nov 2002 09:21:07 +0000 From: "Chris Forrest" To: Subject: Elekta SL PFN problem. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA02227 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 01 Nov 2002 09:21:07 +0000 From: "Chris Forrest" To: Subject: Elekta SL PFN problem. Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA02227 Sender: owner-linac-eng@plato.aristotle.net Here's a nice little one for your interest; Elekta SL - Dose rate drops to approx 70% of nominal when gantry rotated past 130 degrees. All servos appeared to be operating OK, couldn't tune up dose rate by adjusting anything - Gun/ steering/focus/afc etc. in manual. Looked to be an RF power type of thing. Confirmed by the fact you could increase RF power and begin to recover dose rate. 'Scoped Mag I and noticed pulse OK until gantry rotated past problem point where an charateristic bite mark appeared where you would normally see the plateau. Checked PFN and found one one cap 1/3 empty of oil and somewhat swollen. Strange thing was - no evidence of oil around. There was a suggestion that internal breakdown responsible for the cap case changing from a concave shape to a convex one gave the illusion of a loss of oil? Who knows! Rotating gantry had caused remaining oil to move from bottom of cap to top rendering that cap inneffective and consequently resulted in the loss of RF power & doserate! Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 12:38:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187a84-0000xV-00; Fri, 01 Nov 2002 12:38:20 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 63F1E1112F4; Fri, 1 Nov 2002 12:40:05 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA03445 for linac-eng-list; Fri, 1 Nov 2002 05:14:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bridgehead.lumc.nl (bridgehead.lumc.nl [145.88.210.235]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA03441 for ; Fri, 1 Nov 2002 05:14:43 -0600 (CST) Received: by bridgehead.lumc.nl with Internet Mail Service (5.5.2656.59) id ; Fri, 1 Nov 2002 12:14:41 +0100 Message-ID: From: "Vroome, H. de (ONCO)" To: "'Chris Forrest'" , linac-eng@plato.aristotle.net Subject: RE: Elekta SL PFN problem. Date: Fri, 1 Nov 2002 12:14:40 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Vroome, H. de (ONCO)" To: "'Chris Forrest'" , linac-eng@plato.aristotle.net Subject: RE: Elekta SL PFN problem. Date: Fri, 1 Nov 2002 12:14:40 +0100 Sender: owner-linac-eng@plato.aristotle.net These type of capacitors is always a large stack. One capacitor breaks down heating up the oil pushing the tankwalls out, without a noticable change in performance. I had a whole series of PFN capacitors from a Thoshiba linac doing this after 3-5 years and a single tank PFN of the SL75/5 with the same problem. For the last one when the linac eventually didn't perform anymore we opend the tank several of the individual capacitors had blown up. ir. Henk de Vroome Dept Clinical Oncology K1-P Leiden Medical University Centre PoBox 9600, 2300 RC Leiden, The Netherlands tel #31 71 526 2914, fax #31 71 526 6760 -----Original Message----- From: Chris Forrest [mailto:Chris.Forrest@leedsth.nhs.uk] Sent: Friday, November 01, 2002 10:21 To: linac-eng@plato.aristotle.net Subject: Elekta SL PFN problem. Here's a nice little one for your interest; Elekta SL - Dose rate drops to approx 70% of nominal when gantry rotated past 130 degrees. All servos appeared to be operating OK, couldn't tune up dose rate by adjusting anything - Gun/ steering/focus/afc etc. in manual. Looked to be an RF power type of thing. Confirmed by the fact you could increase RF power and begin to recover dose rate. 'Scoped Mag I and noticed pulse OK until gantry rotated past problem point where an charateristic bite mark appeared where you would normally see the plateau. Checked PFN and found one one cap 1/3 empty of oil and somewhat swollen. Strange thing was - no evidence of oil around. There was a suggestion that internal breakdown responsible for the cap case changing from a concave shape to a convex one gave the illusion of a loss of oil? Who knows! Rotating gantry had caused remaining oil to move from bottom of cap to top rendering that cap inneffective and consequently resulted in the loss of RF power & doserate! Chris Chris Forrest Technical Specialist Medical Physics Service Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 13:29:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187avH-0001rb-00; Fri, 01 Nov 2002 13:29:11 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E72BE1112F5; Fri, 1 Nov 2002 13:30:55 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA04210 for linac-eng-list; Fri, 1 Nov 2002 06:10:27 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ihis.org (islandtelecom18-65.islandtelecom.com [142.176.18.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA04206 for ; Fri, 1 Nov 2002 06:10:25 -0600 (CST) Received: by peihealth.ihis.org id <115202>; Fri, 1 Nov 2002 08:00:38 -0400 Message-Id: <02Nov1.080038ast.115202@peihealth.ihis.org> X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Fri, 1 Nov 2002 08:06:17 -0400 From: "Rick Smith" To: Subject: Varis/Vision question Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA04207 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 1 Nov 2002 08:06:17 -0400 From: "Rick Smith" To: Subject: Varis/Vision question Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA04207 Sender: owner-linac-eng@plato.aristotle.net We are soon to be installing a Varian Linac with Varis/Vision software and our Physics Dept want to barcode the accessories to scan in which particular units were used with each patient. We understood that this was possible with the Varian software but they are now telling us that it can't be done. Do any of you use barcodes for this type of purpose and if so is it inputting directly to Varis or do you use some other software? Appreciate any comments on this matter. Thanks Rick Smith Queen Elizabeth Hospital Charlottetown PEI Canada ersmith@ihis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 13:56:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187bLK-0002Ew-00; Fri, 01 Nov 2002 13:56:06 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BD0A11112F4; Fri, 1 Nov 2002 13:57:50 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA04645 for linac-eng-list; Fri, 1 Nov 2002 06:29:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq02.netvigator.com (imsmq02.netvigator.com [218.102.49.36]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA04641 for ; Fri, 1 Nov 2002 06:29:30 -0600 (CST) Received: (qmail 26620 invoked from network); 1 Nov 2002 12:29:14 -0000 Received: from n218103162170.netvigator.com (HELO kyeung) (218.103.162.170) by imsmq02.netvigator.com with SMTP; 1 Nov 2002 12:29:14 -0000 Message-ID: <003a01c281a1$345998c0$98e4fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Re: Varina LE Clinac MG5349 Date: Fri, 1 Nov 2002 20:21:28 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0037_01C281E4.424A7E20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Re: Varina LE Clinac MG5349 Date: Fri, 1 Nov 2002 20:21:28 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0037_01C281E4.424A7E20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 600CD Version 6.1 I was told there is a STB for Varian LE clinac with PortalVision. The = STB can improve the working life of magnetron, MG5349, and the = performance of PortalVision. Could anyone advise the details of the STB? Best regards, Kim Yeung ------=_NextPart_000_0037_01C281E4.424A7E20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
        Varian 600CD Version = 6.1
     
    I was told there is a STB for Varian LE = clinac with=20 PortalVision. The STB can improve the working life of magnetron, MG5349, = and the=20 performance of PortalVision.
     
    Could  anyone advise  the = details=20 of  the STB?
     
    Best regards,
     
    Kim Yeung
    ------=_NextPart_000_0037_01C281E4.424A7E20-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 14:46:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187c81-0002ZT-00; Fri, 01 Nov 2002 14:46:25 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 09FDC1112F4 for ; Fri, 1 Nov 2002 14:48:08 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOCVCKG6408XYFT0@med.uu.nl> for kok@radth.med.uu.nl; Fri, 1 Nov 2002 14:43:27 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOCVCA284G8XW0B0@med.uu.nl> for kok@radth.med.uu.nl; Fri, 01 Nov 2002 14:43:01 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA04210 for linac-eng-list; Fri, 01 Nov 2002 06:10:27 -0600 (CST) Received: from ihis.org (islandtelecom18-65.islandtelecom.com [142.176.18.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA04206 for ; Fri, 01 Nov 2002 06:10:25 -0600 (CST) Received: by peihealth.ihis.org id <115202>; Fri, 01 Nov 2002 08:00:38 -0400 Date: Fri, 01 Nov 2002 08:06:17 -0400 From: Rick Smith Subject: Varis/Vision question Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: <02Nov1.080038ast.115202@peihealth.ihis.org> MIME-version: 1.0 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA04207 X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 8bit Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 01 Nov 2002 08:06:17 -0400 From: Rick Smith Subject: Varis/Vision question Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA04207 Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f We are soon to be installing a Varian Linac with Varis/Vision software and our Physics Dept want to barcode the accessories to scan in which particular units were used with each patient. We understood that this was possible with the Varian software but they are now telling us that it can't be done. Do any of you use barcodes for this type of purpose and if so is it inputting directly to Varis or do you use some other software? Appreciate any comments on this matter. Thanks Rick Smith Queen Elizabeth Hospital Charlottetown PEI Canada ersmith@ihis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 15:08:29 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187cTN-0002rL-00; Fri, 01 Nov 2002 15:08:29 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id F169F1112F5 for ; Fri, 1 Nov 2002 15:10:12 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOCVX45YA88XREXG@med.uu.nl> for kok@radth.med.uu.nl; Fri, 1 Nov 2002 15:03:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOCVWQU0WK8XWO0A@med.uu.nl> for kok@radth.med.uu.nl; Fri, 01 Nov 2002 14:59:30 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA04645 for linac-eng-list; Fri, 01 Nov 2002 06:29:32 -0600 (CST) Received: from imsmq02.netvigator.com (imsmq02.netvigator.com [218.102.49.36]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA04641 for ; Fri, 01 Nov 2002 06:29:30 -0600 (CST) Received: (qmail 26620 invoked from network); Fri, 01 Nov 2002 12:29:14 +0000 Received: from n218103162170.netvigator.com (HELO kyeung) (218.103.162.170) by imsmq02.netvigator.com with SMTP; Fri, 01 Nov 2002 12:29:14 +0000 Date: Fri, 01 Nov 2002 20:21:28 +0800 From: kim yeung Subject: Re: Varina LE Clinac MG5349 Sender: owner-linac-eng@plato.aristotle.net To: linac-eng Message-id: <003a01c281a1$345998c0$98e4fea9@kyeung> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook Express 6.00.2600.0000 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_eC1ppYDaMJ5YCQNh5VuSRg)" X-Priority: 3 X-MSMail-priority: Normal Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 01 Nov 2002 20:21:28 +0800 From: kim yeung Subject: Re: Varina LE Clinac MG5349 Sender: owner-linac-eng@plato.aristotle.net To: linac-eng X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Priority: 3 X-MSMail-priority: Normal X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This is a multi-part message in MIME format. --Boundary_(ID_eC1ppYDaMJ5YCQNh5VuSRg) Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: quoted-printable Hi Colleagues, Varian 600CD Version 6.1 I was told there is a STB for Varian LE clinac with PortalVision. The = STB can improve the working life of magnetron, MG5349, and the = performance of PortalVision. Could anyone advise the details of the STB? Best regards, Kim Yeung --Boundary_(ID_eC1ppYDaMJ5YCQNh5VuSRg) Content-type: text/html; charset="iso-8859-1" Content-transfer-encoding: quoted-printable
    Hi Colleagues,
     
        Varian 600CD Version = 6.1
     
    I was told there is a STB for Varian LE = clinac with=20 PortalVision. The STB can improve the working life of magnetron, MG5349, = and the=20 performance of PortalVision.
     
    Could  anyone advise  the = details=20 of  the STB?
     
    Best regards,
     
    Kim Yeung
    --Boundary_(ID_eC1ppYDaMJ5YCQNh5VuSRg)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 17:47:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187exS-0004EQ-00; Fri, 01 Nov 2002 17:47:42 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BC7431112F4; Fri, 1 Nov 2002 17:49:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA08013 for linac-eng-list; Fri, 1 Nov 2002 10:13:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from orcus.cancerboard.ab.ca (cancerserver.cancerboard.ab.ca [164.102.1.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA08009 for ; Fri, 1 Nov 2002 10:13:51 -0600 (CST) Received: from kurma.cancerboard.ab.ca (kurma.cancerboard.ab.ca [164.102.152.198]) by orcus.cancerboard.ab.ca (8.10.2+Sun/8.10.2) with ESMTP id gA1GEdl06433; Fri, 1 Nov 2002 09:14:39 -0700 (MST) Received: from cancerboard.ab.ca ([164.102.248.244]) by kurma.cancerboard.ab.ca (Switch-2.2.1/Switch-2.2.0) with ESMTP id gA1GDu029099; Fri, 1 Nov 2002 09:13:56 -0700 (MST) Message-ID: <3DC2A97A.78E5D75A@cancerboard.ab.ca> Date: Fri, 01 Nov 2002 09:19:06 -0700 From: Len Johnson X-Mailer: Mozilla 4.7 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: Rick Smith Cc: linac-eng@plato.aristotle.net Subject: Re: Varis/Vision question References: <02Nov1.080038ast.115202@peihealth.ihis.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 01 Nov 2002 09:19:06 -0700 From: Len Johnson X-Accept-Language: en To: Rick Smith Cc: linac-eng@plato.aristotle.net Subject: Re: Varis/Vision question Sender: owner-linac-eng@plato.aristotle.net Rick: We have "Custom Coding" on all of our accessories. This software and hardware was installed by Varian aprox two years ago. The other treatment facility in Calgary Alberta also has "Custom Coding". We have also labelled the test jigs/adapters used by physics to ensure that the proper devices are used in the correct Clinac. I believe that this system was prototypical when we had it installed. Perhaps you can check with your Varian sales representative. Regards; Len Rick Smith wrote: > We are soon to be installing a Varian Linac with Varis/Vision software and our Physics Dept want to barcode the accessories to scan in which particular units were used with each patient. We understood that this was possible with the Varian software but they are now telling us that it can't be done. > Do any of you use barcodes for this type of purpose and if so is it inputting directly to Varis or do you use some other software? > Appreciate any comments on this matter. > > Thanks > Rick Smith > Queen Elizabeth Hospital > Charlottetown PEI Canada > ersmith@ihis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 01 23:35:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 187kNe-0004pS-00; Fri, 01 Nov 2002 23:35:06 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5F3C21112F4; Fri, 1 Nov 2002 23:36:37 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA25303 for linac-eng-list; Fri, 1 Nov 2002 16:06:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r08.mx.aol.com (imo-r08.mx.aol.com [152.163.225.104]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA25299 for ; Fri, 1 Nov 2002 16:06:37 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-r08.mx.aol.com (mail_out_v34.13.) id y.fe.200d7902 (3972) for ; Fri, 1 Nov 2002 17:06:03 -0500 (EST) Message-ID: Date: Fri, 1 Nov 2002 17:06:03 EST Subject: SIEMENS LINAC NEEDED To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10637 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Fri, 1 Nov 2002 17:06:03 EST Subject: SIEMENS LINAC NEEDED To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Hello Everyone: I am in need of a Siemens model M, MD, or MD Digital linac with 6 MV or 6/10 MV with Electrons in 3 to 6 months. Please let me know if there's anything available out there. Thank you in advance for your kind assistance!! Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 04 18:00:08 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 188ka7-0002rs-00; Mon, 04 Nov 2002 18:00:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 024211112FB; Mon, 4 Nov 2002 18:00:15 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA05809 for linac-eng-list; Mon, 4 Nov 2002 10:26:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq08.netvigator.com (imsmq08.netvigator.com [218.102.49.40]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA05805 for ; Mon, 4 Nov 2002 10:26:18 -0600 (CST) Received: (qmail 1855 invoked from network); 4 Nov 2002 16:26:01 -0000 Received: from pcd259179.netvigator.com (HELO kyeung) (203.218.49.179) by imsmq08.netvigator.com with SMTP; 4 Nov 2002 16:26:01 -0000 Message-ID: <000e01c2841d$c559a620$de86fea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Re; Varian 600CD MG5349 Date: Tue, 5 Nov 2002 00:18:11 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C28460.D328F9C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Re; Varian 600CD MG5349 Date: Tue, 5 Nov 2002 00:18:11 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C28460.D328F9C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 600CD Version 6.1 I was told there is a STB, not CTB, for Varian 600CD clinac with = PortalVision. The STB can improve the working life of magnetron, MG5349, = and the performance of PortalVision. Could anyone advise the details of the STB? Best regards, Kim Yeung ------=_NextPart_000_000B_01C28460.D328F9C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
        Varian 600CD Version = 6.1
     
    I was told there is a STB, not = CTB, for Varian=20 600CD clinac with PortalVision. The STB can improve the working life of=20 magnetron, MG5349, and the performance of PortalVision.
     
    Could  anyone advise  the = details=20 of  the STB?
     
    Best regards,
     
    Kim = Yeung
    ------=_NextPart_000_000B_01C28460.D328F9C0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 04 19:04:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 188la2-00032Y-00; Mon, 04 Nov 2002 19:04:06 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B4AEC1112FB; Mon, 4 Nov 2002 19:04:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA07306 for linac-eng-list; Mon, 4 Nov 2002 11:36:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ihis.org (islandtelecom18-65.islandtelecom.com [142.176.18.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA07301 for ; Mon, 4 Nov 2002 11:36:38 -0600 (CST) Received: by peihealth.ihis.org id <115205>; Mon, 4 Nov 2002 13:26:45 -0400 Message-Id: <02Nov4.132645ast.115205@peihealth.ihis.org> X-Mailer: Novell GroupWise Internet Agent 5.5.5.1 Date: Mon, 4 Nov 2002 13:32:57 -0400 From: "Rick Smith" To: Subject: Test equipment needs for new installation. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA07303 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 4 Nov 2002 13:32:57 -0400 From: "Rick Smith" To: Subject: Test equipment needs for new installation. Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA07303 Sender: owner-linac-eng@plato.aristotle.net I have the advantage of starting up a new electronics shop from scratch to service a Varian 21EX with MLC and portal vision. Some of you have already supplied a list of test equipment needed but I want to poll the list for recommendations for test equipment and or special tools that you may prefer. I am particularly interested in oscilloscope specs. Thanks to all who respond. Rick Smith ersmith@ihis.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 05 05:18:56 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 188vB2-0004FH-00; Tue, 05 Nov 2002 05:18:56 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8D6241112F7; Tue, 5 Nov 2002 05:18:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA19437 for linac-eng-list; Mon, 4 Nov 2002 21:55:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [203.5.110.194] (burnia.dmz.health.nsw.gov.au [203.5.110.252]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA19433 for ; Mon, 4 Nov 2002 21:55:37 -0600 (CST) Received: from bablia.ccf.health.nsw.gov.au by [203.5.110.194] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 5 Nov 2002 03:55:37 UT Received: from mxscan ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.0-24 #44005) with SMTP id <01KOIGXJAI9000413Y@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Tue, 05 Nov 2002 14:55:00 -0500 (EST) Received: from 203.5.108.57 by mxscan (InterScan E-Mail VirusWall NT); Tue, 05 Nov 2002 14:46:43 +1100 Received: from DOH_HUB-Message_Server by doh.health.nsw.gov.au with Novell_GroupWise; Tue, 05 Nov 2002 14:50:24 +1100 Date: Tue, 05 Nov 2002 14:53:46 +1100 From: Vince Reynolds Subject: Varian 600C Gantry Drive System To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise 5.5.2 Content-type: multipart/mixed; boundary="----=_NextPartTM-000-191c20b2-60b7-4c75-aeff-6f784942b3ba" Content-disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 05 Nov 2002 14:53:46 +1100 From: Vince Reynolds Subject: Varian 600C Gantry Drive System To: linac-eng@plato.aristotle.net Content-disposition: inline Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPartTM-000-191c20b2-60b7-4c75-aeff-6f784942b3ba Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Has anybody on the list experienced the drive key between the motor shaft = and harmonic drive working loose? thanks Vince Reynolds Royal North Shore Hospital Sydney ------=_NextPartTM-000-191c20b2-60b7-4c75-aeff-6f784942b3ba Content-Type: text/plain; name="InterScan_Disclaimer.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="InterScan_Disclaimer.txt" This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health. ------=_NextPartTM-000-191c20b2-60b7-4c75-aeff-6f784942b3ba-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 05 09:54:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 188zTe-0005e9-00; Tue, 05 Nov 2002 09:54:26 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6C7111112FB for ; Tue, 5 Nov 2002 09:54:14 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOI5872FYO8Y0H24@med.uu.nl> for kok@radth.med.uu.nl; Tue, 5 Nov 2002 09:48:26 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOHZGN1RPC8XKRJC@med.uu.nl> for kok@radth.med.uu.nl; Tue, 05 Nov 2002 06:35:01 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA19437 for linac-eng-list; Mon, 04 Nov 2002 21:55:45 -0600 (CST) Received: from [203.5.110.194] (burnia.dmz.health.nsw.gov.au [203.5.110.252]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA19433 for ; Mon, 04 Nov 2002 21:55:37 -0600 (CST) Received: from bablia.ccf.health.nsw.gov.au by [203.5.110.194] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; Tue, 05 Nov 2002 03:55:37 +0000 (UT) Received: from mxscan ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.0-24 #44005) with SMTP id <01KOIGXJAI9000413Y@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Tue, 05 Nov 2002 14:55:00 -0500 (EST) Received: from 203.5.108.57 by mxscan (InterScan E-Mail VirusWall NT); Tue, 05 Nov 2002 14:46:43 +1100 Received: from DOH_HUB-Message_Server by doh.health.nsw.gov.au with Novell_GroupWise; Tue, 05 Nov 2002 14:50:24 +1100 Date: Tue, 05 Nov 2002 14:53:46 +1100 From: Vince Reynolds Subject: Varian 600C Gantry Drive System Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise 5.5.2 Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_skh5+WSVTkJmOQEWVthYzw)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 05 Nov 2002 14:53:46 +1100 From: Vince Reynolds Subject: Varian 600C Gantry Drive System Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This is a multi-part message in MIME format. --Boundary_(ID_skh5+WSVTkJmOQEWVthYzw) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable Has anybody on the list experienced the drive key between the motor shaft = and harmonic drive working loose? thanks Vince Reynolds Royal North Shore Hospital Sydney --Boundary_(ID_skh5+WSVTkJmOQEWVthYzw) Content-type: text/plain; name="InterScan_Disclaimer.txt" Content-disposition: attachment; filename="InterScan_Disclaimer.txt" Content-transfer-encoding: 7bit This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health. --Boundary_(ID_skh5+WSVTkJmOQEWVthYzw)-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 05 17:21:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1896Sj-0001xT-00; Tue, 05 Nov 2002 17:21:57 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 401271112FC; Tue, 5 Nov 2002 17:21:34 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA27887 for linac-eng-list; Tue, 5 Nov 2002 09:58:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA27883 for ; Tue, 5 Nov 2002 09:58:50 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2655.55) id ; Tue, 5 Nov 2002 10:58:19 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F089@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Vince Reynolds'" , linac-eng@plato.aristotle.net Subject: RE: Varian 600C Gantry Drive System Date: Tue, 5 Nov 2002 10:58:14 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Vince Reynolds'" , linac-eng@plato.aristotle.net Subject: RE: Varian 600C Gantry Drive System Date: Tue, 5 Nov 2002 10:58:14 -0500 Sender: owner-linac-eng@plato.aristotle.net Happens on all brands, tightening set screw is part of my routine gantry drive PMI. An old Mechanical Engineer friend told me the way to prevent loosening of an allen screw was to put another one in the same hole to lock it down. Like a double nut used on a shaft. Jerry -----Original Message----- From: Vince Reynolds [mailto:VReynold@doh.health.nsw.gov.au] Sent: Monday, November 04, 2002 10:54 PM To: linac-eng@plato.aristotle.net Subject: Varian 600C Gantry Drive System Has anybody on the list experienced the drive key between the motor shaft and harmonic drive working loose? thanks Vince Reynolds Royal North Shore Hospital Sydney 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 05 17:21:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1896Sj-0001xW-00; Tue, 05 Nov 2002 17:21:57 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 405D91112FD; Tue, 5 Nov 2002 17:21:35 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA27695 for linac-eng-list; Tue, 5 Nov 2002 09:46:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from be-mail.hosting.bellsouth.net (be-mail.hosting.bellsouth.net [205.152.0.152]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA27691 for ; Tue, 5 Nov 2002 09:46:22 -0600 (CST) Received: from mobileinfirmary.org ([216.77.62.13]) by be-mail.hosting.bellsouth.net (Post.Office MTA v3.5.3 release 223 ID# 0-52534L100S0V35) with ESMTP id net for ; Tue, 5 Nov 2002 10:45:44 -0500 Message-ID: <3DC7E6FF.6BAC6BD2@mobileinfirmary.org> Date: Tue, 05 Nov 2002 09:42:55 -0600 From: "Ken Sylvia" X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: Electrometers Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 05 Nov 2002 09:42:55 -0600 From: "Ken Sylvia" X-Accept-Language: en To: "linac-eng@plato.aristotle.net" Subject: Electrometers Sender: owner-linac-eng@plato.aristotle.net I have 3 Victoreen Electrometers in great shape, Model 37-720. Would anyone be interested? 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 05 19:19:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1898IM-0002Kn-00; Tue, 05 Nov 2002 19:19:22 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D76591112FA; Tue, 5 Nov 2002 19:18:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA00580 for linac-eng-list; Tue, 5 Nov 2002 11:58:00 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA00576 for ; Tue, 5 Nov 2002 11:57:53 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Tue, 5 Nov 2002 09:57:23 -0800 Message-ID: <74065972AB85704686598FB16DDC40DA95C09E@phsormsg07.or.providence.org> From: "Kaufman, John" To: "'linac'" Subject: MLC leaf malfunction Date: Tue, 5 Nov 2002 09:57:21 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kaufman, John" To: "'linac'" Subject: MLC leaf malfunction Date: Tue, 5 Nov 2002 09:57:21 -0800 Sender: owner-linac-eng@plato.aristotle.net We have had our first serious MLC problem, obviously 2 weeks out of warranty. I have a leaf that will be completely out of position when 1 and only one field file is called up. (This field works on one of the other two machines). In addition when it gets "stuck" in this position, manual movement from the control panel at the head is possible but as soon as the bank selection switch is returned to the normal operate position, this errant leaf returns to its "out of position" placement. This seems very odd and has never been the case before when operating a leaf manually. Anyone seen this or have any ideas as to what is causing this unusual behavior. Thanks John B Kaufman Senior Biomedical Technician Providence Portland Medical Center 503-215-5415 503-215-6397 **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 05 21:00:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 1899s6-0002ZA-00; Tue, 05 Nov 2002 21:00:22 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1B5041112FA; Tue, 5 Nov 2002 20:59:55 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA02212 for linac-eng-list; Tue, 5 Nov 2002 13:40:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA02208 for ; Tue, 5 Nov 2002 13:40:13 -0600 (CST) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 5 Nov 2002 13:39:51 -0600 Received: (from spc164 [172.24.56.164]) by neried.scf.sk.ca (NAVGW 2.5.2.12) with SMTP id M2002110513445717578 ; Tue, 05 Nov 2002 13:44:57 -0600 From: "Chris Barnardo" To: "'Kaufman, John'" , "Linac-Engineers, Listserver (E-mail)" Subject: RE: MLC leaf malfunction Date: Tue, 5 Nov 2002 13:40:29 -0600 Message-ID: <000801c28503$32b1e2b0$a43818ac@scadomain.local> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0009_01C284D0.E819E3B0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: <74065972AB85704686598FB16DDC40DA95C09E@phsormsg07.or.providence.org> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Barnardo" To: "'Kaufman, John'" , "Linac-Engineers, Listserver (E-mail)" Subject: RE: MLC leaf malfunction Date: Tue, 5 Nov 2002 13:40:29 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: <74065972AB85704686598FB16DDC40DA95C09E@phsormsg07.or.providence.org> Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C284D0.E819E3B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hi Group: With the Millennium MLC, cleanliness is next to godliness. The slightest bit of grease or contamination and the leaf speed will be dramatically reduced. We had almost the identical problem with our 120 leaf unit. We had to completely disassemble the carriage, including separating the 2 halves. Then with a tiny toothbrush (or equivalent) clean all the groves for the leaves to slide in. We also find that the bearings in the lead screws tend to bind, we replace these at the slightest sign of aging. We seem to have good success with our MLC, if we keep up lots of TLC PM's Chris Barnardo Physics Tech Saskatoon Cancer Centre 20 Campus Drive Saskatoon, Sk Canada S7N 4H4 Ph: (306) 655-2699 Fax: (306) 655-2701 e-mail: cbarnardo@scf.sk.ca -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Kaufman, John Sent: Tuesday, November 05, 2002 11:57 AM To: 'linac' Subject: MLC leaf malfunction We have had our first serious MLC problem, obviously 2 weeks out of warranty. I have a leaf that will be completely out of position when 1 and only one field file is called up. (This field works on one of the other two machines). In addition when it gets "stuck" in this position, manual movement from the control panel at the head is possible but as soon as the bank selection switch is returned to the normal operate position, this errant leaf returns to its "out of position" placement. This seems very odd and has never been the case before when operating a leaf manually. Anyone seen this or have any ideas as to what is causing this unusual behavior. Thanks John B Kaufman Senior Biomedical Technician Providence Portland Medical Center 503-215-5415 503-215-6397 **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. ------=_NextPart_000_0009_01C284D0.E819E3B0 Content-Type: text/x-vcard; name="Barnardo Chris (E-mail).vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Barnardo Chris (E-mail).vcf" BEGIN:VCARD VERSION:2.1 N:Chris;Barnardo FN:Barnardo Chris (E-mail) EMAIL;PREF;INTERNET:cbarnardo@scf.sk.ca REV:20020812T185719Z END:VCARD ------=_NextPart_000_0009_01C284D0.E819E3B0-- 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 05 23:32:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189CFa-0002sb-00; Tue, 05 Nov 2002 23:32:46 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C73051112FA; Tue, 5 Nov 2002 23:32:15 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA06732 for linac-eng-list; Tue, 5 Nov 2002 16:09:18 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f16.law8.hotmail.com [216.33.241.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA06728 for ; Tue, 5 Nov 2002 16:09:16 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 5 Nov 2002 14:08:45 -0800 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Tue, 05 Nov 2002 22:08:45 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: cbarnardo@scf.sk.ca, JoKaufman@providence.org, linac-eng@plato.aristotle.net Subject: RE: MLC leaf malfunction Date: Tue, 05 Nov 2002 16:08:45 -0600 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 05 Nov 2002 22:08:45.0765 (UTC) FILETIME=[E8E1CF50:01C28517] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: cbarnardo@scf.sk.ca, JoKaufman@providence.org, linac-eng@plato.aristotle.net Subject: RE: MLC leaf malfunction Date: Tue, 05 Nov 2002 16:08:45 -0600 X-OriginalArrivalTime: 05 Nov 2002 22:08:45.0765 (UTC) FILETIME=[E8E1CF50:01C28517] Sender: owner-linac-eng@plato.aristotle.net Hi Chris Sounds like a Secondary feedback PCB problem. You can switch it to the other side or just replace it. This would be step #1. ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 414-443-6430 >From: "Chris Barnardo" >To: "'Kaufman, John'" , "Linac-Engineers, >Listserver \(E-mail\)" >Subject: RE: MLC leaf malfunction >Date: Tue, 5 Nov 2002 13:40:29 -0600 > >Hi Group: > > With the Millennium MLC, cleanliness is next to godliness. The slightest >bit of grease or contamination and the leaf speed will be dramatically >reduced. > > We had almost the identical problem with our 120 leaf unit. We had to >completely disassemble the carriage, including separating the 2 halves. >Then >with a tiny toothbrush (or equivalent) clean all the groves for the leaves >to slide in. > > We also find that the bearings in the lead screws tend to bind, we replace >these at the slightest sign of aging. > > We seem to have good success with our MLC, if we keep up lots of TLC PM's > >Chris Barnardo >Physics Tech >Saskatoon Cancer Centre >20 Campus Drive >Saskatoon, Sk >Canada >S7N 4H4 > >Ph: (306) 655-2699 >Fax: (306) 655-2701 >e-mail: cbarnardo@scf.sk.ca > > > >-----Original Message----- >From: owner-linac-eng@plato.aristotle.net >[mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Kaufman, John >Sent: Tuesday, November 05, 2002 11:57 AM >To: 'linac' >Subject: MLC leaf malfunction > > >We have had our first serious MLC problem, obviously 2 weeks out of >warranty. >I have a leaf that will be completely out of position when 1 and only one >field file is called up. (This field works on one of the other two >machines). In addition when it gets "stuck" in this position, manual >movement from the control panel at the head is possible but as soon as the >bank selection switch is returned to the normal operate position, this >errant leaf returns to its "out of position" placement. This seems very odd >and has never been the case before when operating a leaf manually. Anyone >seen this or have any ideas as to what is causing this unusual behavior. >Thanks > >John B Kaufman >Senior Biomedical Technician >Providence Portland Medical Center >503-215-5415 >503-215-6397 > > >**************************************************************************** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. ><< BarnardoChris(E-mail).vcf >> _________________________________________________________________ Get a speedy connection with MSN Broadband. Join now! http://resourcecenter.msn.com/access/plans/freeactivation.asp 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 06 12:14:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189O8t-0007MI-00; Wed, 06 Nov 2002 12:14:39 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9C8081112F2; Wed, 6 Nov 2002 12:13:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA15875 for linac-eng-list; Wed, 6 Nov 2002 03:54:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f193.law8.hotmail.com [216.33.241.193]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA15870 for ; Wed, 6 Nov 2002 03:54:56 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 6 Nov 2002 01:54:25 -0800 Received: from 207.67.109.70 by lw8fd.law8.hotmail.msn.com with HTTP; Wed, 06 Nov 2002 09:54:25 GMT X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: cbarnardo@scf.sk.ca, JoKaufman@providence.org, linac-eng@plato.aristotle.net Subject: RE: MLC leaf malfunction Date: Wed, 06 Nov 2002 03:54:25 -0600 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 06 Nov 2002 09:54:25.0775 (UTC) FILETIME=[7D7E9FF0:01C2857A] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [207.67.109.70] From: "ROD WILLIAMS" To: cbarnardo@scf.sk.ca, JoKaufman@providence.org, linac-eng@plato.aristotle.net Subject: RE: MLC leaf malfunction Date: Wed, 06 Nov 2002 03:54:25 -0600 X-OriginalArrivalTime: 06 Nov 2002 09:54:25.0775 (UTC) FILETIME=[7D7E9FF0:01C2857A] Sender: owner-linac-eng@plato.aristotle.net I mean Hi John I should of said that step #1 should be the leaf motor. Hi Chris Sounds like a Secondary feedback PCB problem. You can switch it to the other side or just replace it. This would be step #1. in the lead screws tend to bind, we replace >these at the slightest sign of aging. > > We seem to have good success with our MLC, if we keep up lots of TLC PM's >Hi Group: > > With the Millennium MLC, cleanliness is next to godliness. The slightest >bit of grease or contamination and the leaf speed will be dramatically >reduced. > > We had almost the identical problem with our 120 leaf unit. We had to >completely disassemble the carriage, including separating the 2 halves. >Then >with a tiny toothbrush (or equivalent) clean all the groves for the leaves >to slide in. > > We also find that the bearings > >> >-----Original Message----- >From: owner-linac-eng@plato.aristotle.net >[mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Kaufman, John >Sent: Tuesday, November 05, 2002 11:57 AM >To: 'linac' >Subject: MLC leaf malfunction > > >We have had our first serious MLC problem, obviously 2 weeks out of >warranty. >I have a leaf that will be completely out of position when 1 and only one >field file is called up. (This field works on one of the other two >machines). In addition when it gets "stuck" in this position, manual >movement from the control panel at the head is possible but as soon as the >bank selection switch is returned to the normal operate position, this >errant leaf returns to its "out of position" placement. This seems very odd >and has never been the case before when operating a leaf manually. Anyone >seen this or have any ideas as to what is causing this unusual behavior. >Thanks > >John B Kaufman >Senior Biomedical Technician >Providence Portland Medical Center >503-215-5415 >503-215-6397 > > >**************************************************************************** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. ><< BarnardoChris(E-mail).vcf >> _________________________________________________________________ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 06 15:50:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189RWF-0001o4-00; Wed, 06 Nov 2002 15:50:59 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C88A51112F2; Wed, 6 Nov 2002 15:50:07 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA18977 for linac-eng-list; Wed, 6 Nov 2002 08:25:40 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA18968 for ; Wed, 6 Nov 2002 08:25:15 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H550X5DQS1I3B@email.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 06 Nov 2002 09:24:55 -0500 (EST) Date: Wed, 06 Nov 2002 09:20:26 -0500 From: "Peter E. Vitali" Subject: Re: MLC leaf malfunction To: "Kaufman, John" Cc: "'linac'" Message-id: <3DC92521.A7320789@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en References: <74065972AB85704686598FB16DDC40DA95C09E@phsormsg07.or.providence.org> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 06 Nov 2002 09:20:26 -0500 From: "Peter E. Vitali" Subject: Re: MLC leaf malfunction To: "Kaufman, John" Cc: "'linac'" X-Accept-Language: en Sender: owner-linac-eng@plato.aristotle.net John: I have seen this problem before but do not remember what the correction was. I do not find it in my service records. I thought it may have been a glitch. I may have removed the secondary feedback files and then initialized. I have no record of changing a motor. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 06 16:59:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189SaM-0002iD-00; Wed, 06 Nov 2002 16:59:18 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6E0C71112F2 for ; Wed, 6 Nov 2002 16:58:26 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOJZGAMDIO8XUKWB@med.uu.nl> for kok@radth.med.uu.nl; Wed, 6 Nov 2002 16:56:21 +0100 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOJZG9OIS68Y0XA4@med.uu.nl> for kok@radth.med.uu.nl; Wed, 06 Nov 2002 16:56:18 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA18977 for linac-eng-list; Wed, 06 Nov 2002 08:25:40 -0600 (CST) Received: from persephone.med.yale.edu (email.med.yale.edu [130.132.232.16]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA18968 for ; Wed, 06 Nov 2002 08:25:15 -0600 (CST) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by email.med.yale.edu (PMDF V6.1-1 #40995) with ESMTP id <0H550X5DQS1I3B@email.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 06 Nov 2002 09:24:55 -0500 (EST) Date: Wed, 06 Nov 2002 09:20:26 -0500 From: "Peter E. Vitali" Subject: Re: MLC leaf malfunction Sender: owner-linac-eng@plato.aristotle.net To: "Kaufman, John" Cc: 'linac' Message-id: <3DC92521.A7320789@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.75 (Macintosh; U; PPC) Content-type: text/plain; x-mac-creator=4D4F5353; x-mac-type=54455854; charset=us-ascii Content-transfer-encoding: 7bit Precedence: bulk X-Accept-Language: en References: <74065972AB85704686598FB16DDC40DA95C09E@phsormsg07.or.providence.org> X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 06 Nov 2002 09:20:26 -0500 From: "Peter E. Vitali" Subject: Re: MLC leaf malfunction Sender: owner-linac-eng@plato.aristotle.net To: "Kaufman, John" Cc: 'linac' X-Accept-Language: en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f John: I have seen this problem before but do not remember what the correction was. I do not find it in my service records. I thought it may have been a glitch. I may have removed the secondary feedback files and then initialized. I have no record of changing a motor. Peter E. Vitali, CBET Therapeutic Radiological Engineer Yale New Haven Hospital 20 York Street, HRT 22 New Haven, CT. 06504 Phone: (203) 688-2948 FAX: (203) 688-3663 E-mail: peter.vitali@yale.edu As usual, everything I say may be plausibly denied at my employer's convenience... 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 06 17:41:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189TEm-0002vw-00; Wed, 06 Nov 2002 17:41:04 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 248E01112F2; Wed, 6 Nov 2002 17:40:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA21120 for linac-eng-list; Wed, 6 Nov 2002 10:14:40 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from phsorcon02.phsor.org ([170.220.2.13]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA21115 for ; Wed, 6 Nov 2002 10:14:33 -0600 (CST) Received: by phsorcon02.phsor.org with Internet Mail Service (5.5.2653.19) id ; Wed, 6 Nov 2002 08:14:03 -0800 Message-ID: <74065972AB85704686598FB16DDC40DA95C0A4@phsormsg07.or.providence.org> From: "Kaufman, John" To: "'linac'" Subject: Varian Milenium MLC problem Date: Wed, 6 Nov 2002 08:14:00 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kaufman, John" To: "'linac'" Subject: Varian Milenium MLC problem Date: Wed, 6 Nov 2002 08:14:00 -0800 Sender: owner-linac-eng@plato.aristotle.net Thanks to everyone on the list for their suggestions. Here is what I did to resolve the problem. Replaced the motor with no resolution. Swapped the Sec. Fdbk boards side to side, malfunction remains on the A carriage. Replaced the lead screw, T-nut and wiper ball on the soft pot. Problem is gone. I have replaced the wiper on the soft pot in similar situations with negative resullts so I suspect that the tiniest amount of "slop" in the T-nut or lead screw can cause this problem. John B Kaufman Senior Biomedical Technician Providence Portland Medical Center 503-215-5415 503-215-6397 **************************************************************************** This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email and delete the message. Thank you very much. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 07 03:37:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189cYJ-0004MM-00; Thu, 07 Nov 2002 03:37:51 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 044841112F2; Thu, 7 Nov 2002 03:36:40 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA03694 for linac-eng-list; Wed, 6 Nov 2002 20:09:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA03688 for ; Wed, 6 Nov 2002 20:09:52 -0600 (CST) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id PAA09580 for ; Thu, 7 Nov 2002 15:04:45 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Thu, 7 Nov 2002 15:05:01 -0600 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Thu, 07 Nov 2002 15:09:05 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Thu, 07 Nov 2002 15:08:57 +1300 From: "Dave Pinchin" To: , Subject: Re: Varian MLC UDRS Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 07 Nov 2002 15:08:57 +1300 From: "Dave Pinchin" To: , Subject: Re: Varian MLC UDRS Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net G'day, Here's a long shot. PV is somtimes set up to disable the PFN servo (etc) for image stability. Does the Servo work during the fault symptom??? :D >>> "Caunt, Peter" 7/11/02 14:39:37 >>> Morning all members, Scratching the head on problems associated with a recent 120 leaf Millenium MLC installation, any help greatly appreciated. At beam on during clinical treatment, dose rate will fall to under 50 with a corresponding UDRS interlock. Re-moding in 18X clears interlock and allows for continued treatment. The problem occurrs predominately at 6X in either static or dynamic fields. Machine tuning is fine, and the problem has only ever occurred post recent MLC installation. Portal vision although installed is switched off and not used. UDRS does not occur in service mode, even with extensive dynamic wedge operation. Anyone ..........?? Thanks in advance. Kind Regards all, Peter Caunt Radiation Oncology The Canberra Hospital Canberra, Australia. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 07 04:00:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189cuh-0004Pr-00; Thu, 07 Nov 2002 04:00:59 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4402C1112F2; Thu, 7 Nov 2002 03:59:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA02408 for linac-eng-list; Wed, 6 Nov 2002 18:40:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gondor.dpa.act.gov.au (gondor.dpa.act.gov.au [136.153.2.50]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA02404 for ; Wed, 6 Nov 2002 18:40:12 -0600 (CST) Received: (from smap@localhost) by gondor.dpa.act.gov.au (8.11.1/8.11.1) id gA70dsE12836 for ; Thu, 7 Nov 2002 11:39:54 +1100 (EST) Received: from unknown(10.226.2.7) by gondor via smap (V5.5) id xma012780; Thu, 7 Nov 02 11:39:45 +1100 Received: by cal007.dpa.act.gov.au with Internet Mail Service (5.5.2653.19) id ; Thu, 7 Nov 2002 11:39:39 +1000 Message-ID: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D69@cal036.act.gov.au> From: "Caunt, Peter" To: "Linac Eng (E-mail)" Subject: Varian MLC UDRS Date: Thu, 7 Nov 2002 11:39:37 +1000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Caunt, Peter" To: "Linac Eng (E-mail)" Subject: Varian MLC UDRS Date: Thu, 7 Nov 2002 11:39:37 +1000 Sender: owner-linac-eng@plato.aristotle.net Morning all members, Scratching the head on problems associated with a recent 120 leaf Millenium MLC installation, any help greatly appreciated. At beam on during clinical treatment, dose rate will fall to under 50 with a corresponding UDRS interlock. Re-moding in 18X clears interlock and allows for continued treatment. The problem occurrs predominately at 6X in either static or dynamic fields. Machine tuning is fine, and the problem has only ever occurred post recent MLC installation. Portal vision although installed is switched off and not used. UDRS does not occur in service mode, even with extensive dynamic wedge operation. Anyone ..........?? Thanks in advance. Kind Regards all, Peter Caunt Radiation Oncology The Canberra Hospital Canberra, Australia. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 07 09:01:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189hbi-0005xf-00; Thu, 07 Nov 2002 09:01:42 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5052D1112F7 for ; Thu, 7 Nov 2002 09:00:30 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOKW9MUMC08XSMQN@med.uu.nl> for kok@radth.med.uu.nl; Thu, 7 Nov 2002 08:45:53 +0100 Received: from plato.aristotle.net ([206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOKODXZDP48XT46A@med.uu.nl> for kok@radth.med.uu.nl; Thu, 07 Nov 2002 04:49:52 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA03694 for linac-eng-list; Wed, 06 Nov 2002 20:09:55 -0600 (CST) Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA03688 for ; Wed, 06 Nov 2002 20:09:52 -0600 (CST) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id PAA09580 for ; Thu, 07 Nov 2002 15:04:45 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Thu, 07 Nov 2002 15:05:01 -0600 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Thu, 07 Nov 2002 15:09:05 +1300 Date: Thu, 07 Nov 2002 15:08:57 +1300 From: Dave Pinchin Subject: Re: Varian MLC UDRS Sender: owner-linac-eng@plato.aristotle.net To: Peter.Caunt@act.gov.au, linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.2 Content-type: text/plain; charset="us-ascii" Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 07 Nov 2002 15:08:57 +1300 From: Dave Pinchin Subject: Re: Varian MLC UDRS Sender: owner-linac-eng@plato.aristotle.net To: Peter.Caunt@act.gov.au, linac-eng@plato.aristotle.net Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f G'day, Here's a long shot. PV is somtimes set up to disable the PFN servo (etc) for image stability. Does the Servo work during the fault symptom??? :D >>> "Caunt, Peter" 7/11/02 14:39:37 >>> Morning all members, Scratching the head on problems associated with a recent 120 leaf Millenium MLC installation, any help greatly appreciated. At beam on during clinical treatment, dose rate will fall to under 50 with a corresponding UDRS interlock. Re-moding in 18X clears interlock and allows for continued treatment. The problem occurrs predominately at 6X in either static or dynamic fields. Machine tuning is fine, and the problem has only ever occurred post recent MLC installation. Portal vision although installed is switched off and not used. UDRS does not occur in service mode, even with extensive dynamic wedge operation. Anyone ..........?? Thanks in advance. Kind Regards all, Peter Caunt Radiation Oncology The Canberra Hospital Canberra, Australia. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 07 15:19:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189nV9-0002ZV-00; Thu, 07 Nov 2002 15:19:19 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 466721112F2; Thu, 7 Nov 2002 15:17:57 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA10464 for linac-eng-list; Thu, 7 Nov 2002 07:55:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hccexch.harringtoncc.org ([207.19.3.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA10457 for ; Thu, 7 Nov 2002 07:55:27 -0600 (CST) Received: from a9a5c1.harringtoncc.org ([192.168.1.64] unverified) by hccexch.harringtoncc.org with Microsoft SMTPSVC(5.0.2195.5329); Thu, 7 Nov 2002 08:03:50 -0600 Message-Id: <4.3.2.7.1.20021107080317.00ad3e70@192.168.1.7> X-Sender: srobinson@192.168.1.7 X-Mailer: QUALCOMM Windows Eudora Version 4.3.2 Date: Thu, 07 Nov 2002 08:04:06 -0600 To: linac-eng@plato.aristotle.net From: srobinson Subject: Fwd: Re: Varian MLC UDRS Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-OriginalArrivalTime: 07 Nov 2002 14:03:50.0820 (UTC) FILETIME=[7FC50640:01C28666] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Sender: srobinson@192.168.1.7 Date: Thu, 07 Nov 2002 08:04:06 -0600 To: linac-eng@plato.aristotle.net From: srobinson Subject: Fwd: Re: Varian MLC UDRS X-OriginalArrivalTime: 07 Nov 2002 14:03:50.0820 (UTC) FILETIME=[7FC50640:01C28666] Sender: owner-linac-eng@plato.aristotle.net >Date: Thu, 07 Nov 2002 08:00:05 -0600 >To: "Caunt, Peter" >From: srobinson >Subject: Re: Varian MLC UDRS > >Peter, > I wish to echo Dave's remarks. I recently had Dose Rate problems > that turned out to be originating from the PLS2 Module of the PV > subsystem. The PV PLS2 module controls Pulse Length thus Dose Rate in > three distinct modes. Electrons, Lo-X, and Hi-X. >Observe GUNI and watch. I also have to wonder, are you experiencing PV >problems also? In my situation the machine would acknowledge Beam-On the >Beam-Off itself within microseconds. Funny how things happen. I hope >that I helped. Best of Luck. > >At 11:39 AM 11/7/02 +1000, you wrote: >>Morning all members, >> Scratching the head on problems associated with a recent >>120 leaf Millenium MLC installation, any help greatly appreciated. >> >>At beam on during clinical treatment, dose rate will fall to under 50 with a >>corresponding UDRS interlock. >>Re-moding in 18X clears interlock and allows for continued treatment. >> >>The problem occurrs predominately at 6X in either static or dynamic fields. >>Machine tuning is fine, and the problem has only ever occurred post recent >>MLC installation. >> >>Portal vision although installed is switched off and not used. >> >>UDRS does not occur in service mode, even with extensive dynamic wedge >>operation. >> >>Anyone ..........?? >> >>Thanks in advance. >> >>Kind Regards all, >> >> >>Peter Caunt >>Radiation Oncology >>The Canberra Hospital >>Canberra, Australia. Steve Robinson Linear Accelerator Engineer Radiation Therapy 806.359.4673 ext 160 Cell:806.433.4418 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 07 15:51:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 189nzw-00036x-00; Thu, 07 Nov 2002 15:51:08 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A0C9B1112F2; Thu, 7 Nov 2002 15:49:46 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA11075 for linac-eng-list; Thu, 7 Nov 2002 08:33:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA11071 for ; Thu, 7 Nov 2002 08:33:07 -0600 (CST) From: clbartee@hsc.vcu.edu Received: from mail2.vcu.edu (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id JAA32589; Thu, 7 Nov 2002 09:32:59 -0500 Message-Id: <200211071432.JAA32589@arrakis.vcu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1 User-Agent: IMHO/0.98.3 (Webmail for Roxen) Subject: Re: Varian MLC UDRS MIME-Version: 1.0 To: "Caunt, Peter" Date: Thu, 07 Nov 2002 09:32:59 -0500 Cc: "Linac Eng (E-mail)" In-Reply-To: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D69@cal036.act.gov.au> Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu Subject: Re: Varian MLC UDRS To: "Caunt, Peter" Date: Thu, 07 Nov 2002 09:32:59 -0500 Cc: "Linac Eng (E-mail)" In-Reply-To: <2FC7DBCD6D6AD611AD7B0090278CABAEE79D69@cal036.act.gov.au> Sender: owner-linac-eng@plato.aristotle.net Your PLS servo might need to be aligned. This is very critical when you first beam on. Even though the pv is not used the pls servo is installed and still switches between pulse drop and pls mode. Also check your serial comm interface board, it has to be jumpered for mlc dynamic mode. Just a thought, Chris Bartee ------------------- > Morning all members, > Scratching the head on problems associated with a recent > 120 leaf Millenium MLC installation, any help greatly appreciated. > > At beam on during clinical treatment, dose rate will fall to under 50 with a > corresponding UDRS interlock. > Re-moding in 18X clears interlock and allows for continued treatment. > > The problem occurrs predominately at 6X in either static or dynamic fields. > Machine tuning is fine, and the problem has only ever occurred post recent > MLC installation. > > Portal vision although installed is switched off and not used. > > UDRS does not occur in service mode, even with extensive dynamic wedge > operation. > > Anyone ..........?? > > Thanks in advance. > > Kind Regards all, > > > Peter Caunt > Radiation Oncology > The Canberra Hospital > Canberra, Australia. > > > > > > > 1,, X-Coding-System: iso-8859-15-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 08 19:40:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AE37-0002Tz-00; Fri, 08 Nov 2002 19:40:09 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BA5D51112F5; Fri, 8 Nov 2002 19:38:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA15550 for linac-eng-list; Fri, 8 Nov 2002 12:08:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ws1-8.us4.outblaze.com (205-158-62-59.outblaze.com [205.158.62.59]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA15546 for ; Fri, 8 Nov 2002 12:08:43 -0600 (CST) Received: (qmail 90284 invoked by uid 1001); 8 Nov 2002 18:08:08 -0000 Message-ID: <20021108180808.90283.qmail@mail.com> Content-Type: text/plain; charset="iso-8859-15" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Received: from [198.81.26.176] by ws1-8.us4.outblaze.com with http for drumsome@musician.org; Fri, 08 Nov 2002 13:08:08 -0500 From: "Bob Huff" To: linac-eng@plato.aristotle.net Date: Fri, 08 Nov 2002 13:08:08 -0500 Subject: Acc interlocks X-Originating-Ip: 198.81.26.176 X-Originating-Server: ws1-8.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-Disposition: inline From: "Bob Huff" To: linac-eng@plato.aristotle.net Date: Fri, 08 Nov 2002 13:08:08 -0500 Subject: Acc interlocks X-Originating-Ip: 198.81.26.176 X-Originating-Server: ws1-8.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Hello, I have a 600C, which is giving intermittent "accessory" interlocks, only with the beam "ON". This happens between 1-10 times/day. Also happens 99% of time when a wedge is being used, and rarely happens with no wedge. I've tried all the usual parts, ie: pod driver, optical reader, and checked for loose conections or grounds. This is peculiar, since it only happens in the middle of a treatment, and sometimes the instant "beam on" is pushed. When I check the even logs, it always shows that the accessory installed is "invalid", when this fault occurs. Any assistance in this matter is greatly appreciated. Thanks, Bob Huff -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Single & ready to mingle? lavalife.com: Where singles click. Free to Search! http://www.lavalife.com/mailcom.epl?a=2116 1,, X-Coding-System: iso-8859-15-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 08 20:52:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AFAz-0002fQ-00; Fri, 08 Nov 2002 20:52:21 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 069941112F5 for ; Fri, 8 Nov 2002 20:50:23 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KON06MU6Q88XXVGB@med.uu.nl> for kok@radth.med.uu.nl; Fri, 8 Nov 2002 20:49:08 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KON06L6BSM8XTH0R@med.uu.nl> for kok@radth.med.uu.nl; Fri, 08 Nov 2002 20:49:07 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA15550 for linac-eng-list; Fri, 08 Nov 2002 12:08:45 -0600 (CST) Received: from ws1-8.us4.outblaze.com (205-158-62-59.outblaze.com [205.158.62.59]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA15546 for ; Fri, 08 Nov 2002 12:08:43 -0600 (CST) Received: (qmail 90284 invoked by uid 1001); Fri, 08 Nov 2002 18:08:08 +0000 Received: from [198.81.26.176] by ws1-8.us4.outblaze.com with http for drumsome@musician.org; Fri, 08 Nov 2002 13:08:08 -0500 Date: Fri, 08 Nov 2002 13:08:08 -0500 From: Bob Huff Subject: Acc interlocks Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: <20021108180808.90283.qmail@mail.com> MIME-version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Content-type: text/plain; charset="iso-8859-15" Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-Originating-Ip: 198.81.26.176 X-Originating-Server: ws1-8.us4.outblaze.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 08 Nov 2002 13:08:08 -0500 From: Bob Huff Subject: Acc interlocks Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Content-disposition: inline X-Originating-Ip: 198.81.26.176 X-Originating-Server: ws1-8.us4.outblaze.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hello, I have a 600C, which is giving intermittent "accessory" interlocks, only with the beam "ON". This happens between 1-10 times/day. Also happens 99% of time when a wedge is being used, and rarely happens with no wedge. I've tried all the usual parts, ie: pod driver, optical reader, and checked for loose conections or grounds. This is peculiar, since it only happens in the middle of a treatment, and sometimes the instant "beam on" is pushed. When I check the even logs, it always shows that the accessory installed is "invalid", when this fault occurs. Any assistance in this matter is greatly appreciated. Thanks, Bob Huff -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Single & ready to mingle? lavalife.com: Where singles click. Free to Search! http://www.lavalife.com/mailcom.epl?a=2116 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 08 21:09:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AFRR-0002ih-00; Fri, 08 Nov 2002 21:09:21 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 11D561112F5; Fri, 8 Nov 2002 21:07:21 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA19020 for linac-eng-list; Fri, 8 Nov 2002 13:46:33 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER (mailout.wth.org [216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA19016 for ; Fri, 8 Nov 2002 13:46:32 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Fri, 8 Nov 2002 13:46:30 -0600 Message-ID: From: "Turner, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: Varian Clinac 2300 C/D C3 Problem Date: Fri, 8 Nov 2002 13:46:28 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2875F.873C15E0" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: Varian Clinac 2300 C/D C3 Problem Date: Fri, 8 Nov 2002 13:46:28 -0600 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2875F.873C15E0 Content-Type: text/plain Machine is approximately 10 years old and still has the original klystron, gun, target and RF driver. Symptoms: Sluggish dose rate in 20X, 15e and 18e. 6X, 6e, 9e, 12e, and 22e appear to run just fine. The dose rate starts out low (varies according to energy) and slowly comes up to rated output. The problem is most pronounced in 15e. The dose rate starts out very low, at around 50 MU/min. and slowly comes up the longer the machine runs. Rated output is typically reached after approximately 190 MU's and 40 seconds have elapsed. The 20X dose rate begins at 350 and comes to rated output in 10 to 15 seconds. It "feels" like a warm up problem, i.e. if I beam 15e off when the dose rate reaches 100 MU's/min. and beam right back on it picks back up at 100 MU's/min and continues to increase as it runs. If I let it achieve rated output, then let it set for 5 minutes, dose rate starts out low again. Once the machine runs long enough ("warms up") to achieve rated output in one energy, it will run fine in all energies. I feel the problem is common to all energies, it is just more pronounced in these three for some reason. Troubleshooting Findings: RF system * Dqueing is nominal between 50% and 60% for all energies and varies appropriately with adjustment. Waveform remains stable and constant during run period to rated output. * KlyI waveform is nominal and remains constant during run period to rated output. * FWD PWR waveform appears nominal with no noticeable change during run period. * RFDRV waveform appears nominal, no change during run period. Max. output at 200 W and saturates Klystron in both modes. * LDPWR 2 (Rabbit Ears) waveform is nominal. RF is on freq. With full guide acceptance during PITPB. * Kly Fils set at 237 vrms. Increasing filament voltage has no effect on symptoms. * Changed Main Thy w/used spare. No change in symptoms. Gun * 6X Gun I waveform appears nominal, with no angling of leading or trailing edge of waveform. * Gun timing is nominal * GFIL set to 5.4 VDC. Increasing filament voltage to 5.9 VDC has some effect on symptoms. 20X beams on apparently normally achieving rated output quickly. 15e starts slowly at approx. 50 MU's/min and achieves rated output in approx. 90 MU and 15 to 20 seconds. The results of this test I don't think are really conclusive. The change in symptoms could be due to a normal increase in gun current as a result of a higher cathode temperature. Guide * No significant Vac activity during run period. Target (6X) * Strange "Dip" almost to baseline near leading edge of Targ I waveform, otherwise normal. No change in this symptom during run period. Steering Servoes * All beam steering servoes operating nominally with beam profiles verified as correct by physics. Sorry for the long detailed e-mail. Any help or opinion is appreciated. Guy Turner NOTICE: (1) The foregoing is not intended to be a legally binding or legally effective electronic signature. (2) This message may contain legally privileged information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. ------_=_NextPart_001_01C2875F.873C15E0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Varian Clinac 2300 C/D C3 Problem

    Machine is approximately 10 years old = and still has the original klystron, gun, target and RF driver.


    Symptoms:

    Sluggish dose rate in 20X, 15e and = 18e.  6X, 6e, 9e, 12e, and 22e appear to run just fine.  The = dose rate starts out low (varies according to energy) and slowly comes = up to rated output.  The problem is most pronounced in 15e.  = The dose rate starts out very low, at around 50 MU/min. and slowly = comes up the longer the machine runs.  Rated output is typically = reached after approximately 190 MU's and 40 seconds have elapsed.  = The 20X dose rate begins at 350 and comes to rated output in 10 to 15 = seconds.  It "feels" like a warm up problem, i.e. if I = beam 15e off when the dose rate reaches 100 MU's/min. and beam right = back on it picks back up at 100 MU's/min and continues to increase as = it runs.  If I let it achieve rated output, then let it set for 5 = minutes, dose rate starts out low again.  Once the machine runs = long enough ("warms up") to achieve rated output in one = energy, it will run fine in all energies.  I feel the problem is = common to all energies, it is just more pronounced in these three for = some reason.

    Troubleshooting = Findings:

    RF system

    • Dqueing is nominal between 50% = and 60% for all energies and varies appropriately with adjustment. = Waveform remains stable and constant during run period to rated = output.
    • KlyI waveform is nominal and remains = constant during run period to rated output.
    • FWD PWR waveform appears nominal with = no noticeable change during run period.
    • RFDRV waveform appears nominal, no = change during run period.  Max. output at 200 W and saturates = Klystron in both modes.
    • LDPWR 2 (Rabbit Ears) waveform is = nominal.  RF is on freq. With full guide acceptance during = PITPB.
    • Kly Fils set at 237 vrms.  = Increasing filament voltage has no effect on symptoms.
    • Changed Main Thy w/used spare.  = No change in symptoms.

    Gun

    • 6X Gun I waveform appears = nominal, with no angling of leading or trailing edge of = waveform.
    • Gun timing is nominal
    • GFIL set to 5.4 VDC.  Increasing = filament voltage to 5.9 VDC has some effect on symptoms.  20X = beams on apparently normally achieving rated output quickly.  15e = starts slowly at approx. 50 MU's/min and achieves rated output in = approx. 90 MU and 15 to 20 seconds.  The results of this test I = don't think are really conclusive.  The change in symptoms could = be due to a normal increase in gun current as a result of a higher = cathode temperature.

    Guide

    • No significant Vac activity = during run period.

    Target (6X)

    • Strange "Dip" almost to = baseline near leading edge of Targ I waveform, otherwise normal.  = No change in this symptom during run period.

    Steering Servoes

    • All beam steering servoes = operating nominally with beam profiles verified as correct by = physics.

    Sorry for the long detailed = e-mail.  Any help or opinion is appreciated.

    Guy Turner

    NOTICE:  (1) The foregoing is not intended to be a legally = binding or legally effective electronic signature.  (2) This = message may contain legally privileged information.  If you are = not the intended recipient of this message, please notify me, disregard = the foregoing message, and delete the message immediately.  I = apologize for any inconvenience this may have caused.


    ------_=_NextPart_001_01C2875F.873C15E0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 08 22:12:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AGQe-0002th-00; Fri, 08 Nov 2002 22:12:36 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 72BD31112F5 for ; Fri, 8 Nov 2002 22:10:36 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KON2YH56XC8XXWU3@med.uu.nl> for kok@radth.med.uu.nl; Fri, 8 Nov 2002 22:08:51 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KON2YF0KA68XTH0R@med.uu.nl> for kok@radth.med.uu.nl; Fri, 08 Nov 2002 22:08:49 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA19020 for linac-eng-list; Fri, 08 Nov 2002 13:46:33 -0600 (CST) Received: from EXCHCLUSTER (mailout.wth.org [216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA19016 for ; Fri, 08 Nov 2002 13:46:32 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Fri, 08 Nov 2002 13:46:30 -0600 Date: Fri, 08 Nov 2002 13:46:28 -0600 From: "Turner, Guy" Subject: Varian Clinac 2300 C/D C3 Problem Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_WBxZK0LMAOnJyaIS1Smo6Q)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 08 Nov 2002 13:46:28 -0600 From: "Turner, Guy" Subject: Varian Clinac 2300 C/D C3 Problem Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --Boundary_(ID_WBxZK0LMAOnJyaIS1Smo6Q) Content-type: text/plain Machine is approximately 10 years old and still has the original klystron, gun, target and RF driver. Symptoms: Sluggish dose rate in 20X, 15e and 18e. 6X, 6e, 9e, 12e, and 22e appear to run just fine. The dose rate starts out low (varies according to energy) and slowly comes up to rated output. The problem is most pronounced in 15e. The dose rate starts out very low, at around 50 MU/min. and slowly comes up the longer the machine runs. Rated output is typically reached after approximately 190 MU's and 40 seconds have elapsed. The 20X dose rate begins at 350 and comes to rated output in 10 to 15 seconds. It "feels" like a warm up problem, i.e. if I beam 15e off when the dose rate reaches 100 MU's/min. and beam right back on it picks back up at 100 MU's/min and continues to increase as it runs. If I let it achieve rated output, then let it set for 5 minutes, dose rate starts out low again. Once the machine runs long enough ("warms up") to achieve rated output in one energy, it will run fine in all energies. I feel the problem is common to all energies, it is just more pronounced in these three for some reason. Troubleshooting Findings: RF system * Dqueing is nominal between 50% and 60% for all energies and varies appropriately with adjustment. Waveform remains stable and constant during run period to rated output. * KlyI waveform is nominal and remains constant during run period to rated output. * FWD PWR waveform appears nominal with no noticeable change during run period. * RFDRV waveform appears nominal, no change during run period. Max. output at 200 W and saturates Klystron in both modes. * LDPWR 2 (Rabbit Ears) waveform is nominal. RF is on freq. With full guide acceptance during PITPB. * Kly Fils set at 237 vrms. Increasing filament voltage has no effect on symptoms. * Changed Main Thy w/used spare. No change in symptoms. Gun * 6X Gun I waveform appears nominal, with no angling of leading or trailing edge of waveform. * Gun timing is nominal * GFIL set to 5.4 VDC. Increasing filament voltage to 5.9 VDC has some effect on symptoms. 20X beams on apparently normally achieving rated output quickly. 15e starts slowly at approx. 50 MU's/min and achieves rated output in approx. 90 MU and 15 to 20 seconds. The results of this test I don't think are really conclusive. The change in symptoms could be due to a normal increase in gun current as a result of a higher cathode temperature. Guide * No significant Vac activity during run period. Target (6X) * Strange "Dip" almost to baseline near leading edge of Targ I waveform, otherwise normal. No change in this symptom during run period. Steering Servoes * All beam steering servoes operating nominally with beam profiles verified as correct by physics. Sorry for the long detailed e-mail. Any help or opinion is appreciated. Guy Turner NOTICE: (1) The foregoing is not intended to be a legally binding or legally effective electronic signature. (2) This message may contain legally privileged information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. --Boundary_(ID_WBxZK0LMAOnJyaIS1Smo6Q) Content-type: text/html Content-transfer-encoding: quoted-printable Varian Clinac 2300 C/D C3 Problem

    Machine is approximately 10 years old = and still has the original klystron, gun, target and RF driver.


    Symptoms:

    Sluggish dose rate in 20X, 15e and = 18e.  6X, 6e, 9e, 12e, and 22e appear to run just fine.  The = dose rate starts out low (varies according to energy) and slowly comes = up to rated output.  The problem is most pronounced in 15e.  = The dose rate starts out very low, at around 50 MU/min. and slowly = comes up the longer the machine runs.  Rated output is typically = reached after approximately 190 MU's and 40 seconds have elapsed.  = The 20X dose rate begins at 350 and comes to rated output in 10 to 15 = seconds.  It "feels" like a warm up problem, i.e. if I = beam 15e off when the dose rate reaches 100 MU's/min. and beam right = back on it picks back up at 100 MU's/min and continues to increase as = it runs.  If I let it achieve rated output, then let it set for 5 = minutes, dose rate starts out low again.  Once the machine runs = long enough ("warms up") to achieve rated output in one = energy, it will run fine in all energies.  I feel the problem is = common to all energies, it is just more pronounced in these three for = some reason.

    Troubleshooting = Findings:

    RF system

    • Dqueing is nominal between 50% = and 60% for all energies and varies appropriately with adjustment. = Waveform remains stable and constant during run period to rated = output.
    • KlyI waveform is nominal and remains = constant during run period to rated output.
    • FWD PWR waveform appears nominal with = no noticeable change during run period.
    • RFDRV waveform appears nominal, no = change during run period.  Max. output at 200 W and saturates = Klystron in both modes.
    • LDPWR 2 (Rabbit Ears) waveform is = nominal.  RF is on freq. With full guide acceptance during = PITPB.
    • Kly Fils set at 237 vrms.  = Increasing filament voltage has no effect on symptoms.
    • Changed Main Thy w/used spare.  = No change in symptoms.

    Gun

    • 6X Gun I waveform appears = nominal, with no angling of leading or trailing edge of = waveform.
    • Gun timing is nominal
    • GFIL set to 5.4 VDC.  Increasing = filament voltage to 5.9 VDC has some effect on symptoms.  20X = beams on apparently normally achieving rated output quickly.  15e = starts slowly at approx. 50 MU's/min and achieves rated output in = approx. 90 MU and 15 to 20 seconds.  The results of this test I = don't think are really conclusive.  The change in symptoms could = be due to a normal increase in gun current as a result of a higher = cathode temperature.

    Guide

    • No significant Vac activity = during run period.

    Target (6X)

    • Strange "Dip" almost to = baseline near leading edge of Targ I waveform, otherwise normal.  = No change in this symptom during run period.

    Steering Servoes

    • All beam steering servoes = operating nominally with beam profiles verified as correct by = physics.

    Sorry for the long detailed = e-mail.  Any help or opinion is appreciated.

    Guy Turner

    NOTICE:  (1) The foregoing is not intended to be a legally = binding or legally effective electronic signature.  (2) This = message may contain legally privileged information.  If you are = not the intended recipient of this message, please notify me, disregard = the foregoing message, and delete the message immediately.  I = apologize for any inconvenience this may have caused.


    --Boundary_(ID_WBxZK0LMAOnJyaIS1Smo6Q)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 08 22:43:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AGuM-0002xD-00; Fri, 08 Nov 2002 22:43:18 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 938D61112F5; Fri, 8 Nov 2002 22:41:15 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA02588 for linac-eng-list; Fri, 8 Nov 2002 15:08:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc.on.ca ([207.35.220.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA02580 for ; Fri, 8 Nov 2002 15:08:19 -0600 (CST) Received: by KRCCMAIL with Internet Mail Service (5.5.2656.59) id ; Fri, 8 Nov 2002 16:10:34 -0500 Message-ID: From: "Feuerstake, Tom" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Varian Clinac 2300 C/D C3 Problem Date: Fri, 8 Nov 2002 16:10:33 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2876B.46BA2550" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Feuerstake, Tom" To: "'linac-eng@plato.aristotle.net'" Subject: RE: Varian Clinac 2300 C/D C3 Problem Date: Fri, 8 Nov 2002 16:10:33 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2876B.46BA2550 Content-Type: text/plain; charset="iso-8859-1" One thing you mention about the gun, consider this: If the gun current increased substantially then the beam loading would also increase. Even if the beam was mis-steered, the beam loading would still increase. The fact that you had better performance with more gun current could imply that the gun current is not adequate, and that the problem points to the gun somehow. Just an observation...good luck Tom Feuerstake -----Original Message----- From: Turner, Guy [mailto:Guy.Turner@WTH.org] Sent: November 8, 2002 2:46 PM To: 'linac-eng@plato.aristotle.net' Subject: Varian Clinac 2300 C/D C3 Problem Machine is approximately 10 years old and still has the original klystron, gun, target and RF driver. Symptoms: Sluggish dose rate in 20X, 15e and 18e. 6X, 6e, 9e, 12e, and 22e appear to run just fine. The dose rate starts out low (varies according to energy) and slowly comes up to rated output. The problem is most pronounced in 15e. The dose rate starts out very low, at around 50 MU/min. and slowly comes up the longer the machine runs. Rated output is typically reached after approximately 190 MU's and 40 seconds have elapsed. The 20X dose rate begins at 350 and comes to rated output in 10 to 15 seconds. It "feels" like a warm up problem, i.e. if I beam 15e off when the dose rate reaches 100 MU's/min. and beam right back on it picks back up at 100 MU's/min and continues to increase as it runs. If I let it achieve rated output, then let it set for 5 minutes, dose rate starts out low again. Once the machine runs long enough ("warms up") to achieve rated output in one energy, it will run fine in all energies. I feel the problem is common to all energies, it is just more pronounced in these three for some reason. Troubleshooting Findings: RF system * Dqueing is nominal between 50% and 60% for all energies and varies appropriately with adjustment. Waveform remains stable and constant during run period to rated output. * KlyI waveform is nominal and remains constant during run period to rated output. * FWD PWR waveform appears nominal with no noticeable change during run period. * RFDRV waveform appears nominal, no change during run period. Max. output at 200 W and saturates Klystron in both modes. * LDPWR 2 (Rabbit Ears) waveform is nominal. RF is on freq. With full guide acceptance during PITPB. * Kly Fils set at 237 vrms. Increasing filament voltage has no effect on symptoms. * Changed Main Thy w/used spare. No change in symptoms. Gun * 6X Gun I waveform appears nominal, with no angling of leading or trailing edge of waveform. * Gun timing is nominal * GFIL set to 5.4 VDC. Increasing filament voltage to 5.9 VDC has some effect on symptoms. 20X beams on apparently normally achieving rated output quickly. 15e starts slowly at approx. 50 MU's/min and achieves rated output in approx. 90 MU and 15 to 20 seconds. The results of this test I don't think are really conclusive. The change in symptoms could be due to a normal increase in gun current as a result of a higher cathode temperature. Guide * No significant Vac activity during run period. Target (6X) * Strange "Dip" almost to baseline near leading edge of Targ I waveform, otherwise normal. No change in this symptom during run period. Steering Servoes * All beam steering servoes operating nominally with beam profiles verified as correct by physics. Sorry for the long detailed e-mail. Any help or opinion is appreciated. Guy Turner NOTICE: (1) The foregoing is not intended to be a legally binding or legally effective electronic signature. (2) This message may contain legally privileged information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. ------_=_NextPart_001_01C2876B.46BA2550 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Varian Clinac 2300 C/D C3 Problem
    -----Original Message-----
    From: kim = yeung=20 [mailto:kimyeung@netvigator.com]
    Sent: Thursday, August 29, = 2002=20 7:37 AM
    To: linac-eng
    Subject: Dose rate control:=20 coincident gun or delay gun mode

    O= ne thing you mention about the gun, consider = this:

    I= f the gun current increased substantially then the beam loading would also = increase. Even if the beam was mis-steered, the beam loading would still increase. The = fact that you had better performance with more gun current could imply that = the gun current is not adequate, and that the problem points to the gun = somehow.

    <= ![if = !supportEmptyParas]> 

    =

    J= ust an observation…good luck

    <= ![if = !supportEmptyParas]> 

    =

    T= om Feuerstake

    <= ![if = !supportEmptyParas]> 

    =

    <= ![if = !supportEmptyParas]> 

    =

    <= ![if = !supportEmptyParas]> 

    =

    <= ![if = !supportEmptyParas]> 

    =

    -----Original Message-----
    From: Turner, Guy [mailto:Guy.Turner@WTH.org]
    Sent: November 8, 2002 = 2:46 PM
    To: 'linac-eng@plato.aristotle.net'
    Subject: Varian Clinac = 2300 C/D C3 Problem

     

    Machine is = approximately 10 years old and still has the original klystron, gun, target and RF = driver. =

     =

    Symptoms:

    Sluggish dose = rate in 20X, 15e and 18e.  6X, 6e, 9e, 12e, and 22e appear to run just = fine.  The dose rate starts out low (varies according to energy) and slowly = comes up to rated output.  The problem is most pronounced in 15e.  The = dose rate starts out very low, at around 50 MU/min. and slowly comes up the = longer the machine runs.  Rated output is typically reached after = approximately 190 MU's and 40 seconds have elapsed.  The 20X dose rate begins at = 350 and comes to rated output in 10 to 15 seconds.  It "feels" = like a warm up problem, i.e. if I beam 15e off when the dose rate reaches 100 = MU's/min. and beam right back on it picks back up at 100 MU's/min and continues = to increase as it runs.  If I let it achieve rated output, then let = it set for 5 minutes, dose rate starts out low again.  Once the machine = runs long enough ("warms up") to achieve rated output in one energy, it = will run fine in all energies.  I feel the problem is common to all = energies, it is just more pronounced in these three for some = reason.=

    Troubleshooting Findings: =

    RF system = =

    =B7         Dqueing is = nominal between 50% and 60% for all energies and varies appropriately with = adjustment. Waveform remains stable and constant during run period to rated = output.=

    =B7         KlyI waveform = is nominal and remains constant during run period to rated = output.=

    =B7         FWD PWR = waveform appears nominal with no noticeable change during run period.=

    =B7         RFDRV waveform = appears nominal, no change during run period.  Max. output at 200 W and = saturates Klystron in both modes.

    =B7         LDPWR 2 = (Rabbit Ears) waveform is nominal.  RF is on freq. With full guide acceptance = during PITPB.

    =B7         Kly Fils set = at 237 vrms.  Increasing filament voltage has no effect on = symptoms.=

    =B7         Changed Main = Thy w/used spare.  No change in symptoms.=

     =

    Gun =

    =B7         6X Gun I = waveform appears nominal, with no angling of leading or trailing edge of = waveform.=

    =B7         Gun timing is = nominal=

    =B7         GFIL set to = 5.4 VDC.  Increasing filament voltage to 5.9 VDC has some effect on symptoms.  20X beams on apparently normally achieving rated output quickly.  15e starts slowly at approx. 50 MU's/min and achieves = rated output in approx. 90 MU and 15 to 20 seconds.  The results of this = test I don't think are really conclusive.  The change in symptoms could = be due to a normal increase in gun current as a result of a higher cathode = temperature.=

     =

    Guide =

    =B7         No significant = Vac activity during run period.

     =

    Target = (6X) =

    =B7         Strange = "Dip" almost to baseline near leading edge of Targ I waveform, otherwise normal.  No change in this symptom during run = period.=

     =

    Steering = Servoes =

    =B7         All beam = steering servoes operating nominally with beam profiles verified as correct by = physics.=

     =

    Sorry for the = long detailed e-mail.  Any help or opinion is = appreciated. =

    Guy Turner

    NOTICE:  = (1) The foregoing is not intended to be a legally binding or legally effective electronic signature.  (2) This message may contain legally = privileged information.  If you are not the intended recipient of this = message, please notify me, disregard the foregoing message, and delete the = message immediately.  I apologize for any inconvenience this may have = caused.=

     =

    ------_=_NextPart_001_01C2876B.46BA2550-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 09 00:13:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AIJY-00039e-00; Sat, 09 Nov 2002 00:13:24 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4795A1112F5; Sat, 9 Nov 2002 00:11:20 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA06325 for linac-eng-list; Fri, 8 Nov 2002 16:50:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA06321 for ; Fri, 8 Nov 2002 16:50:27 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id gA8MnjK08212; Fri, 8 Nov 2002 17:49:45 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C6B.007D0A90 ; Fri, 8 Nov 2002 17:45:47 -0500 X-Lotus-FromDomain: LRCC To: "Bob Huff" Cc: linac-eng@plato.aristotle.net Message-ID: <85256C6B.007D090B.00@mail.lrcc.on.ca> Date: Fri, 8 Nov 2002 17:45:42 -0500 Subject: Re: Acc interlocks Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Bob Huff" Cc: linac-eng@plato.aristotle.net Date: Fri, 8 Nov 2002 17:45:42 -0500 Subject: Re: Acc interlocks Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net I had something like this on an older 600C After we had swapped out all of the boards in the Accessory system loop with no change in the symptoms the only other thing I could think of was noise from the modulator might be causing the Accessory controller to re-boot or just not work right so I swapped out the Main thyratron because it is pretty close to where the Accessory Controller PCB is, maybe there was a bit of arcing in the Thyratron? Problem went away with that change (The thyratron was getting up in age if I recall correctly) It is a quick change and in my case we went from several ACC interlocks per day down to 0 after the change. Good Luck Randy McVittie 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 09 00:41:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AIkg-0003Cp-00; Sat, 09 Nov 2002 00:41:26 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D75361112F5; Sat, 9 Nov 2002 00:39:21 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA07022 for linac-eng-list; Fri, 8 Nov 2002 17:22:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA07017 for ; Fri, 8 Nov 2002 17:22:15 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id gA8NMCt4269402; Fri, 8 Nov 2002 18:22:12 -0500 Message-ID: <3DCC44C7.5050203@hsc.vcu.edu> Date: Fri, 08 Nov 2002 18:12:07 -0500 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Turner, Guy" Cc: "'linac-eng@plato.aristotle.net'" Subject: Re: Varian Clinac 2300 C/D C3 Problem References: Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 08 Nov 2002 18:12:07 -0500 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: "Turner, Guy" Cc: "'linac-eng@plato.aristotle.net'" Subject: Re: Varian Clinac 2300 C/D C3 Problem Sender: owner-linac-eng@plato.aristotle.net Did you check your afc window on your rf driver. If the window is too small and off to one side you will get exactly what you  have presented. You should check afc diff with 6x cold and 20 hot.
    I have also seen this with your t stud for those energies pushed up to high. Try looking at low power one , then lower stud until you start wasting power then bring back up, do not go over the edge.

    Just a though,
    Chris Bartee

    Turner, Guy wrote:
    Varian Clinac 2300 C/D C3 Problem

    Machine is approximately 10 years old and still has the original klystron, gun, target and RF driver.


    Symptoms:

    Sluggish dose rate in 20X, 15e and 18e.  6X, 6e, 9e, 12e, and 22e appear to run just fine.  The dose rate starts out low (varies according to energy) and slowly comes up to rated output.  The problem is most pronounced in 15e.  The dose rate starts out very low, at around 50 MU/min. and slowly comes up the longer the machine runs.  Rated output is typically reached after approximately 190 MU's and 40 seconds have elapsed.  The 20X dose rate begins at 350 and comes to rated output in 10 to 15 seconds.  It "feels" like a warm up problem, i.e. if I beam 15e off when the dose rate reaches 100 MU's/min. and beam right back on it picks back up at 100 MU's/min and continues to increase as it runs.  If I let it achieve rated output, then let it set for 5 minutes, dose rate starts out low again.  Once the machine runs long enough ("warms up") to achieve rated output in one energy, it will run fine in all energies.  I feel the problem is common to all energies, it is just more pronounced in these three for some reason.

    Troubleshooting Findings:

    RF system

    • Dqueing is nominal between 50% and 60% for all energies and varies appropriately with adjustment. Waveform remains stable and constant during run period to rated output.
    • KlyI waveform is nominal and remains constant during run period to rated output.
    • FWD PWR waveform appears nominal with no noticeable change during run period.
    • RFDRV waveform appears nominal, no change during run period.  Max. output at 200 W and saturates Klystron in both modes.
    • LDPWR 2 (Rabbit Ears) waveform is nominal.  RF is on freq. With full guide acceptance during PITPB.
    • Kly Fils set at 237 vrms.  Increasing filament voltage has no effect on symptoms.
    • Changed Main Thy w/used spare.  No change in symptoms.

    Gun

    • 6X Gun I waveform appears nominal, with no angling of leading or trailing edge of waveform.
    • Gun timing is nominal
    • GFIL set to 5.4 VDC.  Increasing filament voltage to 5.9 VDC has some effect on symptoms.  20X beams on apparently normally achieving rated output quickly.  15e starts slowly at approx. 50 MU's/min and achieves rated output in approx. 90 MU and 15 to 20 seconds.  The results of this test I don't think are really conclusive.  The change in symptoms could be due to a normal increase in gun current as a result of a higher cathode temperature.

    Guide

    • No significant Vac activity during run period.

    Target (6X)

    • Strange "Dip" almost to baseline near leading edge of Targ I waveform, otherwise normal.  No change in this symptom during run period.

    Steering Servoes

    • All beam steering servoes operating nominally with beam profiles verified as correct by physics.

    Sorry for the long detailed e-mail.  Any help or opinion is appreciated.

    Guy Turner

    NOTICE:  (1) The foregoing is not intended to be a legally binding or legally effective electronic signature.  (2) This message may contain legally privileged information.  If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately.  I apologize for any inconvenience this may have caused.



    1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 09 00:43:10 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AImM-0003Cu-00; Sat, 09 Nov 2002 00:43:10 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7E5F51112F5; Sat, 9 Nov 2002 00:41:05 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA07091 for linac-eng-list; Fri, 8 Nov 2002 17:24:59 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA07087 for ; Fri, 8 Nov 2002 17:24:58 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id gA8NOgt4282266; Fri, 8 Nov 2002 18:24:42 -0500 Message-ID: <3DCC455D.80103@hsc.vcu.edu> Date: Fri, 08 Nov 2002 18:14:37 -0500 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Bob Huff Cc: linac-eng@plato.aristotle.net Subject: Re: Acc interlocks References: <20021108180808.90283.qmail@mail.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 08 Nov 2002 18:14:37 -0500 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: Bob Huff Cc: linac-eng@plato.aristotle.net Subject: Re: Acc interlocks Sender: owner-linac-eng@plato.aristotle.net Check your ground on the pod board. That board uses an isolated ground from the stand. I had that problem with a new machine. A quick check is to take out the spacer., or intall the spacer for the pod board. Just a thought, Chris Bartee Bob Huff wrote: >Hello, > I have a 600C, which is giving intermittent "accessory" interlocks, only with the beam "ON". This happens between 1-10 times/day. Also happens 99% of time when a wedge is being used, and rarely happens with no wedge. I've tried all the usual parts, ie: pod driver, optical reader, and checked for loose conections or grounds. This is peculiar, since it only happens in the middle of a treatment, and sometimes the instant "beam on" is pushed. > When I check the even logs, it always shows that the accessory installed is "invalid", when this fault occurs. > Any assistance in this matter is greatly appreciated. > >Thanks, > Bob Huff > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 09 00:59:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AJ25-0003ED-00; Sat, 09 Nov 2002 00:59:25 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CB70E1112F5; Sat, 9 Nov 2002 00:57:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA07438 for linac-eng-list; Fri, 8 Nov 2002 17:38:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER (mailout.wth.org [216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA07434 for ; Fri, 8 Nov 2002 17:38:27 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Fri, 8 Nov 2002 17:38:26 -0600 Message-ID: From: "Turner, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: Follow up: Varian Clinac 2300 C/D C3 Problem Date: Fri, 8 Nov 2002 17:38:24 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2877F.EE271410" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'linac-eng@plato.aristotle.net'" Subject: Follow up: Varian Clinac 2300 C/D C3 Problem Date: Fri, 8 Nov 2002 17:38:24 -0600 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2877F.EE271410 Content-Type: text/plain At this point I believe a good catch by Garry Angelotti has discovered the problem. He asked how high I adjusted the klystron filaments when I was checking to see if my klystron was the problem. I didn't mention it in my original e-mail, but I only went to 245 vrms (measured at the pulse tank plug). Garry suggested that 250 to 260 was the range to be in. I went back a boosted the klystron filaments to 255 vrms. 15e, 20X and 18e popped right up to rated output. It looks like my klystron is giving notice of immanent retirement. Good catch by Garry and my thanks to him and to Tom and Chris for their thoughts as well. > Guy Turner > > NOTICE: (1) The foregoing is not intended to be a legally binding or > legally effective electronic signature. (2) This message may contain > legally privileged information. If you are not the intended recipient of > this message, please notify me, disregard the foregoing message, and > delete the message immediately. I apologize for any inconvenience this > may have caused. > > ------_=_NextPart_001_01C2877F.EE271410 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Follow up: Varian Clinac 2300 C/D C3 Problem

    At this point I = believe a good catch by Garry Angelotti has discovered the = problem.  He asked how high I adjusted the klystron filaments when = I was checking to see if my klystron was the problem.  I didn't = mention it in my original e-mail, but I only went to 245 vrms (measured = at the pulse tank plug).  Garry suggested that 250 to 260 was the = range to be in.  I went back a boosted the klystron filaments to = 255 vrms.  15e, 20X and 18e popped right up to rated output.  = It looks like my klystron is giving notice of immanent = retirement.  Good catch by Garry and my thanks to him and to Tom = and Chris for their thoughts as well.


    Guy Turner

    NOTICE:  (1) The foregoing is not intended to be a legally = binding or legally effective electronic signature.  (2) This = message may contain legally privileged information.  If you are = not the intended recipient of this message, please notify me, disregard = the foregoing message, and delete the message immediately.  I = apologize for any inconvenience this may have caused.


    ------_=_NextPart_001_01C2877F.EE271410-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Nov 10 18:15:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AvgA-0001Is-00; Sun, 10 Nov 2002 18:15:22 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E365F1112F9; Sun, 10 Nov 2002 18:12:23 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA29675 for linac-eng-list; Sun, 10 Nov 2002 10:48:29 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29671 for ; Sun, 10 Nov 2002 10:48:27 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2655.55) id ; Sun, 10 Nov 2002 11:47:56 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F08E@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Randy.McVittie@lrcc.on.ca'" , Bob Huff Cc: linac-eng@plato.aristotle.net Subject: RE: Acc interlocks Date: Sun, 10 Nov 2002 11:47:55 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Randy.McVittie@lrcc.on.ca'" , Bob Huff Cc: linac-eng@plato.aristotle.net Subject: RE: Acc interlocks Date: Sun, 10 Nov 2002 11:47:55 -0500 Sender: owner-linac-eng@plato.aristotle.net I have seen noisy thyratrons as you describe. Also a noisy magnetron which had bad connections inside the hat where the filament leads attach. That one sent the morning checker into orbit, right after it was changed, easy diagnosis. This also reminds me of the noise pickup problem that was associated with the recovery of the Deq thyratron, saw that on a couple of machines. That one gave motion faults which could be moved to different axes by changing the Deq timing. It will be good to read the solution to this one! Jerry -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Friday, November 08, 2002 5:46 PM To: Bob Huff Cc: linac-eng@plato.aristotle.net Subject: Re: Acc interlocks I had something like this on an older 600C After we had swapped out all of the boards in the Accessory system loop with no change in the symptoms the only other thing I could think of was noise from the modulator might be causing the Accessory controller to re-boot or just not work right so I swapped out the Main thyratron because it is pretty close to where the Accessory Controller PCB is, maybe there was a bit of arcing in the Thyratron? Problem went away with that change (The thyratron was getting up in age if I recall correctly) It is a quick change and in my case we went from several ACC interlocks per day down to 0 after the change. Good Luck Randy McVittie 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Nov 10 18:23:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18AvoH-0001JR-00; Sun, 10 Nov 2002 18:23:45 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D69A71112F9; Sun, 10 Nov 2002 18:20:46 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA29772 for linac-eng-list; Sun, 10 Nov 2002 10:59:50 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA29765 for ; Sun, 10 Nov 2002 10:59:48 -0600 (CST) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2655.55) id ; Sun, 10 Nov 2002 11:59:17 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F090@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Christopher L. Bartee'" , "Turner, Guy" Cc: "'linac-eng@plato.aristotle.net'" Subject: RE: Varian Clinac 2300 C/D C3 Problem Date: Sun, 10 Nov 2002 11:59:16 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C288DA.240B21B4" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Christopher L. Bartee'" , "Turner, Guy" Cc: "'linac-eng@plato.aristotle.net'" Subject: RE: Varian Clinac 2300 C/D C3 Problem Date: Sun, 10 Nov 2002 11:59:16 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C288DA.240B21B4 Content-Type: text/plain; charset="iso-8859-1" Good point on the afc, have seen this a few times, causing interlocks in film mode when it starts slowly. I have to adjust this every few months on my C3, solid state driver. How often do others adjust this? Jerry -----Original Message----- From: Christopher L. Bartee [mailto:clbartee@hsc.vcu.edu] Sent: Friday, November 08, 2002 6:12 PM To: Turner, Guy Cc: 'linac-eng@plato.aristotle.net' Subject: Re: Varian Clinac 2300 C/D C3 Problem Did you check your afc window on your rf driver. If the window is too small and off to one side you will get exactly what you have presented. You should check afc diff with 6x cold and 20 hot. I have also seen this with your t stud for those energies pushed up to high. Try looking at low power one , then lower stud until you start wasting power then bring back up, do not go over the edge. Just a though, Chris Bartee Turner, Guy wrote: Machine is approximately 10 years old and still has the original klystron, gun, target and RF driver. Symptoms: Sluggish dose rate in 20X, 15e and 18e. 6X, 6e, 9e, 12e, and 22e appear to run just fine. The dose rate starts out low (varies according to energy) and slowly comes up to rated output. The problem is most pronounced in 15e. The dose rate starts out very low, at around 50 MU/min. and slowly comes up the longer the machine runs. Rated output is typically reached after approximately 190 MU's and 40 seconds have elapsed. The 20X dose rate begins at 350 and comes to rated output in 10 to 15 seconds. It "feels" like a warm up problem, i.e. if I beam 15e off when the dose rate reaches 100 MU's/min. and beam right back on it picks back up at 100 MU's/min and continues to increase as it runs. If I let it achieve rated output, then let it set for 5 minutes, dose rate starts out low again. Once the machine runs long enough ("warms up") to achieve rated output in one energy, it will run fine in all energies. I feel the problem is common to all energies, it is just more pronounced in these three for some reason. Troubleshooting Findings: RF system * Dqueing is nominal between 50% and 60% for all energies and varies appropriately with adjustment. Waveform remains stable and constant during run period to rated output. * KlyI waveform is nominal and remains constant during run period to rated output. * FWD PWR waveform appears nominal with no noticeable change during run period. * RFDRV waveform appears nominal, no change during run period. Max. output at 200 W and saturates Klystron in both modes. * LDPWR 2 (Rabbit Ears) waveform is nominal. RF is on freq. With full guide acceptance during PITPB. * Kly Fils set at 237 vrms. Increasing filament voltage has no effect on symptoms. * Changed Main Thy w/used spare. No change in symptoms. Gun * 6X Gun I waveform appears nominal, with no angling of leading or trailing edge of waveform. * Gun timing is nominal * GFIL set to 5.4 VDC. Increasing filament voltage to 5.9 VDC has some effect on symptoms. 20X beams on apparently normally achieving rated output quickly. 15e starts slowly at approx. 50 MU's/min and achieves rated output in approx. 90 MU and 15 to 20 seconds. The results of this test I don't think are really conclusive. The change in symptoms could be due to a normal increase in gun current as a result of a higher cathode temperature. Guide * No significant Vac activity during run period. Target (6X) * Strange "Dip" almost to baseline near leading edge of Targ I waveform, otherwise normal. No change in this symptom during run period. Steering Servoes * All beam steering servoes operating nominally with beam profiles verified as correct by physics. Sorry for the long detailed e-mail. Any help or opinion is appreciated. Guy Turner NOTICE: (1) The foregoing is not intended to be a legally binding or legally effective electronic signature. (2) This message may contain legally privileged information. If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately. I apologize for any inconvenience this may have caused. ------_=_NextPart_001_01C288DA.240B21B4 Content-Type: text/html; charset="iso-8859-1"
    Good point on the afc, have seen this a few times,  causing interlocks in film mode when it starts slowly.  I have to adjust this every few months on my C3, solid state driver.  How often do others adjust this?
    Jerry
    -----Original Message-----
    From: Christopher L. Bartee [mailto:clbartee@hsc.vcu.edu]
    Sent: Friday, November 08, 2002 6:12 PM
    To: Turner, Guy
    Cc: 'linac-eng@plato.aristotle.net'
    Subject: Re: Varian Clinac 2300 C/D C3 Problem

    Did you check your afc window on your rf driver. If the window is too small and off to one side you will get exactly what you  have presented. You should check afc diff with 6x cold and 20 hot.
    I have also seen this with your t stud for those energies pushed up to high. Try looking at low power one , then lower stud until you start wasting power then bring back up, do not go over the edge.

    Just a though,
    Chris Bartee

    Turner, Guy wrote:

    Machine is approximately 10 years old and still has the original klystron, gun, target and RF driver.


    Symptoms:

    Sluggish dose rate in 20X, 15e and 18e.  6X, 6e, 9e, 12e, and 22e appear to run just fine.  The dose rate starts out low (varies according to energy) and slowly comes up to rated output.  The problem is most pronounced in 15e.  The dose rate starts out very low, at around 50 MU/min. and slowly comes up the longer the machine runs.  Rated output is typically reached after approximately 190 MU's and 40 seconds have elapsed.  The 20X dose rate begins at 350 and comes to rated output in 10 to 15 seconds.  It "feels" like a warm up problem, i.e. if I beam 15e off when the dose rate reaches 100 MU's/min. and beam right back on it picks back up at 100 MU's/min and continues to increase as it runs.  If I let it achieve rated output, then let it set for 5 minutes, dose rate starts out low again.  Once the machine runs long enough ("warms up") to achieve rated output in one energy, it will run fine in all energies.  I feel the problem is common to all energies, it is just more pronounced in these three for some reason.

    Troubleshooting Findings:

    RF system

    • Dqueing is nominal between 50% and 60% for all energies and varies appropriately with adjustment. Waveform remains stable and constant during run period to rated output.
    • KlyI waveform is nominal and remains constant during run period to rated output.
    • FWD PWR waveform appears nominal with no noticeable change during run period.
    • RFDRV waveform appears nominal, no change during run period.  Max. output at 200 W and saturates Klystron in both modes.
    • LDPWR 2 (Rabbit Ears) waveform is nominal.  RF is on freq. With full guide acceptance during PITPB.
    • Kly Fils set at 237 vrms.  Increasing filament voltage has no effect on symptoms.
    • Changed Main Thy w/used spare.  No change in symptoms.

    Gun

    • 6X Gun I waveform appears nominal, with no angling of leading or trailing edge of waveform.
    • Gun timing is nominal
    • GFIL set to 5.4 VDC.  Increasing filament voltage to 5.9 VDC has some effect on symptoms.  20X beams on apparently normally achieving rated output quickly.  15e starts slowly at approx. 50 MU's/min and achieves rated output in approx. 90 MU and 15 to 20 seconds.  The results of this test I don't think are really conclusive.  The change in symptoms could be due to a normal increase in gun current as a result of a higher cathode temperature.

    Guide

    • No significant Vac activity during run period.

    Target (6X)

    • Strange "Dip" almost to baseline near leading edge of Targ I waveform, otherwise normal.  No change in this symptom during run period.

    Steering Servoes

    • All beam steering servoes operating nominally with beam profiles verified as correct by physics.

    Sorry for the long detailed e-mail.  Any help or opinion is appreciated.

    Guy Turner

    NOTICE:  (1) The foregoing is not intended to be a legally binding or legally effective electronic signature.  (2) This message may contain legally privileged information.  If you are not the intended recipient of this message, please notify me, disregard the foregoing message, and delete the message immediately.  I apologize for any inconvenience this may have caused.



    ------_=_NextPart_001_01C288DA.240B21B4-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 11 19:20:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18BJBC-0000Mn-00; Mon, 11 Nov 2002 19:20:58 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 706391112F1; Mon, 11 Nov 2002 19:17:26 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA17974 for linac-eng-list; Mon, 11 Nov 2002 11:56:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from samc.com ([207.126.67.166]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA17968 for ; Mon, 11 Nov 2002 11:56:21 -0600 (CST) Received: through eSafe SMTP Relay 1037030062; Mon Nov 11 09:51:12 2002 Received: from SAMC-MTA by samc.com with Novell_GroupWise; Mon, 11 Nov 2002 09:55:48 -0800 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Mon, 11 Nov 2002 09:55:46 -0800 From: "Jose Thekkumthala" To: Subject: Position Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 11 Nov 2002 09:55:46 -0800 From: "Jose Thekkumthala" To: Subject: Position Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net BIOMED ELECTRONICS ENGINEER Saint Agnes Medical Center in Fresno, California is looking for a Biomed Electronics Engineer. Major part of duties will be to take care of the linear accelerators at the Cancer Center. We are equipped with Varian treatment machines 21EX, 2300CD and 600C. We have GE advantage sim CT. The applicant will have ample experience trouble shooting linacs, doing QA and PMI. Other duties are summarized as follows: Should be able to diagnose and repair medical or non-medical electronic equipment, calibrate radiological equipment in compliance with specifications and established standards, ensure that the equipments operate according to manufacturer's specifications and safety standards, maintain accurate documentation on all services performed and maintain effective communication with manufacturers of equipment. He/she reports to the manager of the Biomed Electronics Dept. Fresno is in central California and is within easy access to three famous national parks, 3+ hours drive away from LA and SF and 6 hour drive to Las Vegas. Interested candidates please e-mail resume to maxwmi@samc.com or fax resume to 559-449-3030 ************************************************************************************************** The contents of this email and any attachments are confidential. It is intended for the named recipient(s) only. If you have received this email in error please notify the system manager or the sender immediately and do not disclose the contents to any one or make copies. ************************************************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 13 16:58:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18BzuN-0006zM-00; Wed, 13 Nov 2002 16:58:27 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0F5D71112F3; Wed, 13 Nov 2002 16:53:54 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA27587 for linac-eng-list; Wed, 13 Nov 2002 09:18:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imsmq11.netvigator.com (imsmq11.netvigator.com [218.102.48.124]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA27583 for ; Wed, 13 Nov 2002 09:18:44 -0600 (CST) Received: (qmail 27532 invoked from network); 13 Nov 2002 15:18:28 -0000 Received: from pcd259128.netvigator.com (HELO kyeung) (203.218.49.128) by imsmq11.netvigator.com with SMTP; 13 Nov 2002 15:18:28 -0000 Message-ID: <001801c28b26$ca8ab020$d1effea9@kyeung> From: "kim yeung" To: "linac-eng" Subject: Re: Colour CCTV (in High Energy Clinac treatment room) problem Date: Wed, 13 Nov 2002 23:10:23 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01C28B69.D87B9580" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "kim yeung" To: "linac-eng" Subject: Re: Colour CCTV (in High Energy Clinac treatment room) problem Date: Wed, 13 Nov 2002 23:10:23 +0800 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0015_01C28B69.D87B9580 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Colleagues, Varian 2300CD, 6X/20X There were several posts on the CCTV issue previously. I may miss some = of the warm discussion.=20 We have two incidents of damage of color CD camera chip of the same = CACTI . There are several colored spots shown on the monitor. Is the = CCD chip damaged by neutron?=20 Could anyone advise the symptoms of neutron damaged CCTV?=20 Are there any ways to protect the CCTV installed in high energy clinac = treatment room? Thanks in advance. Kim Yeung ------=_NextPart_000_0015_01C28B69.D87B9580 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi Colleagues,
     
            = Varian=20 2300CD, 6X/20X
     
    There were several posts on = the CCTV=20 issue previously. I may miss some of the warm = discussion. 
     
    We have two incidents of damage of = color CD camera=20 chip  of the same  CACTI . There are several colored = spots  shown on the monitor. Is the CCD chip damaged = by=20 neutron? 
     
    Could anyone advise the symptoms of = neutron damaged=20 CCTV?
     
    Are there any ways to protect the CCTV = installed=20  in high energy clinac treatment room?
     
    Thanks in advance.
     
    Kim Yeung
    ------=_NextPart_000_0015_01C28B69.D87B9580-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 13 22:07:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18C4jo-0007kZ-00; Wed, 13 Nov 2002 22:07:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 341771112F3; Wed, 13 Nov 2002 22:03:13 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA03229 for linac-eng-list; Wed, 13 Nov 2002 14:38:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA03225 for ; Wed, 13 Nov 2002 14:38:39 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id OAA03693; Wed, 13 Nov 2002 14:34:47 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C70.0070B289 ; Wed, 13 Nov 2002 14:30:57 -0600 X-Lotus-FromDomain: MDACC To: "kim yeung" Cc: "linac-eng" Message-ID: <86256C70.0070B01F.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 13 Nov 2002 14:38:33 -0600 Subject: Re: Colour CCTV (in High Energy Clinac treatment room) problem Mime-Version: 1.0 Content-type: multipart/mixed; Boundary="0__=LAQAPFQS3z7MhFRpI9J7974MXIlDZ7k1okbKNz8y7pyI6UTM7tSA6Wyu" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "kim yeung" Cc: "linac-eng" Date: Wed, 13 Nov 2002 14:38:33 -0600 Subject: Re: Colour CCTV (in High Energy Clinac treatment room) problem Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net --0__=LAQAPFQS3z7MhFRpI9J7974MXIlDZ7k1okbKNz8y7pyI6UTM7tSA6Wyu Content-type: text/plain; charset=us-ascii Content-Disposition: inline Neutron damage does seem to be occuring with newer CCD cameras. As the scale of ICs continues to shrink, the opportunities for neutron damage expand. Symptoms observed here are most typically white spots in the picture, most noticable when the room light is low. Solutions: 1. Buy cheap cameras and expect to replace them frequently. 2. Install cameras in low neutron flux areas of the room. 3. Install Black&White cameras. They are just as susceptible to the damage, but it is less noticable. 3. Install cameras in areas shielded by several feet of concrete and use mirrors to "see" the room. 4. Use waterproof cameras and install each one in a tank surrounded by 50 cm of water. We use strategies #1 and #2. Most shielding approaches are just not practical because shielding from neutrons requires lots of material and/or distance. We also have a set of cameras that we install just for acceptance and commissioning. Once that is done, we install new cameras. Its amazing how much beam gets run before a machine gets used for treatments. Tim Waldron "kim yeung" on 11/13/2002 09:10:23 AM To: "linac-eng" cc: (bcc: Timothy J. Waldron/MDACC) Subject: Re: Colour CCTV (in High Energy Clinac treatment room) problem Hi Colleagues, Varian 2300CD, 6X/20X There were several posts on the CCTV issue previously. I may miss some of the warm discussion. We have two incidents of damage of color CD camera chip of the same CACTI . There are several colored spots shown on the monitor. Is the CCD chip damaged by neutron? Could anyone advise the symptoms of neutron damaged CCTV? Are there any ways to protect the CCTV installed in high energy clinac treatment room? Thanks in advance. Kim Yeung --0__=LAQAPFQS3z7MhFRpI9J7974MXIlDZ7k1okbKNz8y7pyI6UTM7tSA6Wyu Content-type: text/html; name="att1.htm" Content-Disposition: attachment; filename="att1.htm" Content-transfer-encoding: base64 Content-Description: Internet HTML --0__=LAQAPFQS3z7MhFRpI9J7974MXIlDZ7k1okbKNz8y7pyI6UTM7tSA6Wyu-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 14 10:52:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18CGfk-0002BP-00; Thu, 14 Nov 2002 10:52:28 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E993C1112F7; Thu, 14 Nov 2002 10:47:32 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA14594 for linac-eng-list; Thu, 14 Nov 2002 03:25:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ccotrust.co.uk (marvin.ccotrust.co.uk [194.217.10.246]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA14590 for ; Thu, 14 Nov 2002 03:25:02 -0600 (CST) Received: by firewall1.ccotrust.co.uk id <118088>; Thu, 14 Nov 2002 09:24:04 +0000 Message-Id: <02Nov14.092404gmt.118088@firewall1.ccotrust.co.uk> From: Philip Mayles To: "'twaldron@mail.mdanderson.org'" Cc: linac-eng Subject: RE: Colour CCTV (in High Energy Clinac treatment room) problem Date: Thu, 14 Nov 2002 09:22:17 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.0.1460.8) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Philip Mayles To: "'twaldron@mail.mdanderson.org'" Cc: linac-eng Subject: RE: Colour CCTV (in High Energy Clinac treatment room) problem Date: Thu, 14 Nov 2002 09:22:17 -0000 Sender: owner-linac-eng@plato.aristotle.net We have white spots in our images even though the maximum energy is 10MV. I do not think it is just neutrons that damage these cameras. Philip Mayles Clatterbridge Centre for Oncology Liverpool, UK -----Original Message----- From: twaldron@mail.mdanderson.org [mailto:twaldron@mail.mdanderson.org] Sent: 13 November 2002 20:39 To: kim yeung Cc: linac-eng Subject: Re: Colour CCTV (in High Energy Clinac treatment room) problem Neutron damage does seem to be occuring with newer CCD cameras. As the scale of ICs continues to shrink, the opportunities for neutron damage expand. Symptoms observed here are most typically white spots in the picture, most noticable when the room light is low. Solutions: 1. Buy cheap cameras and expect to replace them frequently. 2. Install cameras in low neutron flux areas of the room. 3. Install Black&White cameras. They are just as susceptible to the damage, but it is less noticable. 3. Install cameras in areas shielded by several feet of concrete and use mirrors to "see" the room. 4. Use waterproof cameras and install each one in a tank surrounded by 50 cm of water. We use strategies #1 and #2. Most shielding approaches are just not practical because shielding from neutrons requires lots of material and/or distance. We also have a set of cameras that we install just for acceptance and commissioning. Once that is done, we install new cameras. Its amazing how much beam gets run before a machine gets used for treatments. Tim Waldron "kim yeung" on 11/13/2002 09:10:23 AM To: "linac-eng" cc: (bcc: Timothy J. Waldron/MDACC) Subject: Re: Colour CCTV (in High Energy Clinac treatment room) problem Hi Colleagues, Varian 2300CD, 6X/20X There were several posts on the CCTV issue previously. I may miss some of the warm discussion. We have two incidents of damage of color CD camera chip of the same CACTI . There are several colored spots shown on the monitor. Is the CCD chip damaged by neutron? Could anyone advise the symptoms of neutron damaged CCTV? Are there any ways to protect the CCTV installed in high energy clinac treatment room? Thanks in advance. Kim Yeung 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 15 17:56:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18CjlW-0000TF-00; Fri, 15 Nov 2002 17:56:22 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 255461105E4; Fri, 15 Nov 2002 17:50:45 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA08847 for linac-eng-list; Fri, 15 Nov 2002 10:24:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from HSCEMAIL5.hscs.virginia.edu (email.healthsystem.Virginia.EDU [128.143.176.153]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA08843 for ; Fri, 15 Nov 2002 10:24:26 -0600 (CST) Received: from HSCEMAIL3.hscs.virginia.edu ([128.143.111.74]) by HSCEMAIL5.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.5329); Fri, 15 Nov 2002 11:26:20 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C28CC3.BACD57DA" Subject: MLC Lead Screws Date: Fri, 15 Nov 2002 11:26:20 -0500 Message-ID: X-MS-TNEF-Correlator: Thread-Topic: MLC Lead Screws Thread-Index: AcKMwrUzkHixNOemS1G26dZeUTOVOw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 15 Nov 2002 16:26:20.0355 (UTC) FILETIME=[BAFE8930:01C28CC3] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Subject: MLC Lead Screws Date: Fri, 15 Nov 2002 11:26:20 -0500 X-MS-TNEF-Correlator: Thread-Topic: MLC Lead Screws Thread-Index: AcKMwrUzkHixNOemS1G26dZeUTOVOw== From: "Orsolini, Joe D" To: "Linac-Eng (E-mail)" X-OriginalArrivalTime: 15 Nov 2002 16:26:20.0355 (UTC) FILETIME=[BAFE8930:01C28CC3] Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------_=_NextPart_001_01C28CC3.BACD57DA Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Does anyone out there put any lube on Varian Mark II lead screws? I = know officially we are not to lube them, but the chatter from them is = really disconcerting. Giuseppe 'Joe' Orsolini RT(T) =20 Service Engineer=20 2002-2004 Cancer Center Employee Council Rep =20 University of Virginia Health System =20 Department of Radiation Oncology=09 Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) ------_=_NextPart_001_01C28CC3.BACD57DA Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 ------_=_NextPart_001_01C28CC3.BACD57DA-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 15 19:24:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Cl8e-0000dz-00; Fri, 15 Nov 2002 19:24:20 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B7EAC1105E4; Fri, 15 Nov 2002 19:18:41 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA24331 for linac-eng-list; Fri, 15 Nov 2002 12:02:48 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA24324 for ; Fri, 15 Nov 2002 12:02:45 -0600 (CST) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id LAA09231; Fri, 15 Nov 2002 11:59:01 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C72.00627218 ; Fri, 15 Nov 2002 11:55:17 -0600 X-Lotus-FromDomain: MDACC To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" Message-ID: <86256C72.00627099.00@utm-notesob1.mdacc.tmc.edu> Date: Fri, 15 Nov 2002 11:59:01 -0600 Subject: Re: MLC Lead Screws Mime-Version: 1.0 Content-type: multipart/mixed; Boundary="0__=FSypo3SiPQ8FewBrBvRTSJuoxSvGFRM4G0t24COz8H8lCIFQLeUOJ70D" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" Date: Fri, 15 Nov 2002 11:59:01 -0600 Subject: Re: MLC Lead Screws Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net --0__=FSypo3SiPQ8FewBrBvRTSJuoxSvGFRM4G0t24COz8H8lCIFQLeUOJ70D Content-type: text/plain; charset=us-ascii Content-Disposition: inline Hey Joe, Where did you hear about not lubing lead screws on the Mark II's? With the Millenium it's a nono but by all means a dab of "Superlube" on the vespule nut on the leaf before you feed it into the screwjack should help a lot. After a few cycles of the motor you should check the screw and wipe off any excess. The no lube area on the Mark II is the leaf itself. Remember when replacing the screwjack also replace the nut that comes with it. Hope this helps. Ed Rymes Accel Tech III M.D. Anderson Cancer Center Houston, TX "Orsolini, Joe D" on 11/15/2002 10:26:20 AM To: "Linac-Eng (E-mail)" cc: (bcc: Edward Rymes/MDACC) Subject: MLC Lead Screws Does anyone out there put any lube on Varian Mark II lead screws? I know officially we are not to lube them, but the chatter from them is really disconcerting. Giuseppe 'Joe' Orsolini RT(T) Service Engineer 2002-2004 Cancer Center Employee Council Rep University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) --0__=FSypo3SiPQ8FewBrBvRTSJuoxSvGFRM4G0t24COz8H8lCIFQLeUOJ70D Content-type: application/octet-stream; name="winmail.dat" Content-Disposition: attachment; filename="winmail.dat" Content-transfer-encoding: base64 eJ8+IhUQAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEgAEAEAAAAE1MQyBMZWFkIFNjcmV3cwAJ BQEFgAMADgAAANIHCwAPAAsAGgAUAAUAMQEBIIADAA4AAADSBwsADwALABoAFAAFADEBAQmAAQAh AAAAOTI5MEU0NTZFOEJGODQ0MUE0MDQyMTVGMTk3MzVFQzIACAcBA5AGAOAHAAAwAAAACwACAAEA AAADACYAAAAAAAMANgAAAAAAQAA5ANpXzbrDjMIBHgA9AAEAAAABAAAAAAAAAAIBRwABAAAANwAA AGM9VVM7YT0gO3A9bWNjLnZpcmdpbmlhO2w9SFNDRU1BSUwzLTAyMTExNTE2MjYyMFotMzE1MwAA HgBwAAEAAAAQAAAATUxDIExlYWQgU2NyZXdzAAIBcQABAAAAFgAAAAHCjMK1M5B4sTTnpktRtunW XlEzlTsAAB4AGgwBAAAAEAAAAE9yc29saW5pLCBKb2UgRAAeAB0OAQAAABAAAABNTEMgTGVhZCBT Y3Jld3MAAgEJEAEAAADFAgAAwQIAABUEAABMWkZ1uKClvgMACgByY3BnMTI1FjIA+Atgbg4QMDMz TwH3AqQD4wIAY2gKwHPwZXQwIAcTAoMAUATl+xDJCFBtDeAGBAXgAoMOUGMC8gIAcHJxFHEQ5TKk IFcLgGdkFfFzAoPuMxBXFPsRWjQSKBdtE11mfQqACMggOwliDiA4vwm7HG8KQRyxAoAKgXYIkJR3 awuAZBjwdWMAUGMLAwu1IERvB5EAcHmZAiBlIAhgBUB0aASQrSHAcCHxIXEgCkBiIcFdA6BWCsAH MAOgTQrAawggSUki8GVhZCAjBPEH0HM/ICQwIGt0bm8H4G8BIA3gBzFsfSLgdyHACsAhwCWAIgFv QyL0IiFtLCBiIfQgtxfBAkAEkCADUieTIAQAviAJcCYjFiAE8AIgYwSQenQV8S4KogqECoQLMGMD EgISEjE2IEdpdUkRIHBwIcAnSiEwJ1wgTxEQBvALgGkH8FT4KFQpJTArJAZhH3AqoPwgRQ8gC4AJ 4ArUCoAB0OgwMi0wwTQTQABwKqEnE0AJ8CjCRW0LUG952wngE0F1KpADEVItQCUwazOGKyRVAwB2 BJAAkHRnIuAlwCNwaXIv8QcwIM5IKeEiIAYAeXMowCkw7TPKRC1ACsB0B4ACMDUi3lIkkAcwKtAj UU8qkAjx/Gd5DIM3RDSgBAA40jhFxzlCDeAHQCBQaDZwDeCDELArM0JveCA4MNDoMzc1KyRDF9EJ ACixFnMfcCYwZSfgVkEgwDIyOTA4LTz4LDFfDlAMMBRiC/AVwCoWoSD2OjPyLEJiAtEslQWwLhT2 QB9wNYQuCYAMcD+GAtGJGPIxOEE0IDQzRGMFLOAtEfEgOTI0LcQ5NECRKHcpQ69EvzVFxDgw8DMO QBFQKGYcYXhGxUUiRkA3MC3aOCzQNUaQCrBnBJBGyy8LxSuZKzMbgQBOQAAAAB4ANRABAAAARwAA ADxDMjc5QjUyNEJCNTIxNjRFQTgwMzRFMzNEQjdDRjcxRjAyN0IxMEREQEhTQ0VNQUlMMy5oc2Nz LnZpcmdpbmlhLmVkdT4AAAMAgBD/////HwDzEAEAAAAoAAAATQBMAEMAIABMAGUAYQBkACAAUwBj AHIAZQB3AHMALgBFAE0ATAAAAAsA9hAAAAAAQAAHMBq00YrDjMIBQAAIMLBD2brDjMIBAwDeP69v AAADAPE/CQQAAB4A+D8BAAAAEAAAAE9yc29saW5pLCBKb2UgRAACAfk/AQAAAFIAAAAAAAAA3KdA yMBCEBq0uQgAKy/hggEAAAAAAAAAL089TUNDLlZJUkdJTklBLkVEVS9PVT1IU0NNQUlML0NOPVJF Q0lQSUVOVFMvQ049R0RPN1EAAAAeAPo/AQAAABUAAABTeXN0ZW0gQWRtaW5pc3RyYXRvcgAAAAAC Afs/AQAAAB4AAAAAAAAA3KdAyMBCEBq0uQgAKy/hggEAAAAAAAAALgAAAAMA/T/kBAAAAwAZQAAA AAADABpAAAAAAB4AMEABAAAABgAAAEdETzdRAAAAHgAxQAEAAAAGAAAAR0RPN1EAAAAeADhAAQAA AAYAAABHRE83UQAAAB4AOUABAAAAAgAAAC4AAAADAAlZAwAAAAsAZoEIIAYAAAAAAMAAAAAAAABG AAAAAA6FAAAAAAAAAwB+gQggBgAAAAAAwAAAAAAAAEYAAAAAUoUAAH1uAQAeAH+BCCAGAAAAAADA AAAAAAAARgAAAABUhQAAAQAAAAQAAAA5LjAAAwDCgQggBgAAAAAAwAAAAAAAAEYAAAAAAYUAAAAA AAALAMeBCCAGAAAAAADAAAAAAAAARgAAAAADhQAAAAAAAAMAzIEIIAYAAAAAAMAAAAAAAABGAAAA ABGFAAAAAAAAAwDRgQggBgAAAAAAwAAAAAAAAEYAAAAAEIUAAAAAAAADANiBCCAGAAAAAADAAAAA AAAARgAAAAAYhQAAAAAAAAsA6YEIIAYAAAAAAMAAAAAAAABGAAAAAAaFAAAAAAAACwApAAAAAAAL ACMAAAAAAAMABhBuScfpAwAHEJcBAAADABAQAAAAAAMAERAAAAAAHgAIEAEAAABlAAAARE9FU0FO WU9ORU9VVFRIRVJFUFVUQU5ZTFVCRU9OVkFSSUFOTUFSS0lJTEVBRFNDUkVXUz9JS05PV09GRklD SUFMTFlXRUFSRU5PVFRPTFVCRVRIRU0sQlVUVEhFQ0hBVFRFUgAAAAACAX8AAQAAAEcAAAA8QzI3 OUI1MjRCQjUyMTY0RUE4MDM0RTMzREI3Q0Y3MUYwMjdCMTBEREBIU0NFTUFJTDMuaHNjcy52aXJn aW5pYS5lZHU+AACCzQ== --0__=FSypo3SiPQ8FewBrBvRTSJuoxSvGFRM4G0t24COz8H8lCIFQLeUOJ70D-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 15 19:51:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18ClZI-0000gy-00; Fri, 15 Nov 2002 19:51:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 62ABA1105E4; Fri, 15 Nov 2002 19:46:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA24956 for linac-eng-list; Fri, 15 Nov 2002 12:26:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA24949 for ; Fri, 15 Nov 2002 12:26:21 -0600 (CST) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; Fri, 15 Nov 2002 12:26:21 -0600 Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Fri, 15 Nov 2002 12:26:21 -0600 Message-ID: From: Tyson Long To: "List Server (E-mail 2)" Subject: RE: MLC Lead Screws Date: Fri, 15 Nov 2002 12:26:20 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "List Server (E-mail 2)" Subject: RE: MLC Lead Screws Date: Fri, 15 Nov 2002 12:26:20 -0600 Sender: owner-linac-eng@plato.aristotle.net Who told you not go grease the lead screws. We have always greased our lead screws, and our Varian rep greases them. It is recommended to use Super lube on them. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center E-Mail tlong@mercycare.org > -----Original Message----- > From: Orsolini, Joe D [mailto:GDO7Q@hscmail.mcc.virginia.edu] > Sent: Friday, November 15, 2002 10:26 AM > To: Linac-Eng (E-mail) > Subject: MLC Lead Screws > > Does anyone out there put any lube on Varian Mark II lead screws? I know > officially we are not to lube them, but the chatter from them is really > disconcerting. > > Giuseppe 'Joe' Orsolini RT(T) > Service Engineer > 2002-2004 Cancer Center Employee Council Rep > University of Virginia Health System > Department of Radiation Oncology > Division of Radiological Physics > Box 800375 > Charlottesville, VA 22908-0375 > *: orsolini@virginia.edu > 434-924-9422 (w) > 434-982-3520 (fax) > 434-970-8165 (pager) > > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 15 21:17:28 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Cmu8-0000sa-00; Fri, 15 Nov 2002 21:17:28 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EB22F1105E4; Fri, 15 Nov 2002 21:11:46 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA26846 for linac-eng-list; Fri, 15 Nov 2002 13:53:33 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA26841 for ; Fri, 15 Nov 2002 13:53:31 -0600 (CST) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Fri, 15 Nov 2002 13:52:39 -0600 Received: (from spc44 [172.24.56.44]) by neried.scf.sk.ca (NAVGW 2.5.2.12) with SMTP id M2002111513582903695 ; Fri, 15 Nov 2002 13:58:29 -0600 From: "Chris Barnardo" To: "'Tyson Long'" , "Linac-Engineers, Listserver (E-mail)" Subject: RE: MLC Lead Screws Date: Fri, 15 Nov 2002 13:53:17 -0600 Message-ID: <000a01c28ce0$a46e7320$2c3818ac@scadomain.local> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_000B_01C28CAE.59D40320" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Chris Barnardo" To: "'Tyson Long'" , "Linac-Engineers, Listserver (E-mail)" Subject: RE: MLC Lead Screws Date: Fri, 15 Nov 2002 13:53:17 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C28CAE.59D40320 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I certainly hope you are not using SUPER LUBE on the lead screws for the leaves. This will cause no end of problems with leaves sticking. We have a millenium MLC here and use the slightest amount of Tri Flow which is a teflon based lubricant. I don't know the Mark series MLC but assume the same problems can exist with using grease on the leaf lead screws. Chris Barnardo Physics Tech Saskatoon Cancer Centre 20 Campus Drive Saskatoon, Sk Canada S7N 4H4 Ph: (306) 655-2699 Fax: (306) 655-2701 e-mail: cbarnardo@scf.sk.ca -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Tyson Long Sent: Friday, November 15, 2002 12:26 PM To: List Server (E-mail 2) Subject: RE: MLC Lead Screws Who told you not go grease the lead screws. We have always greased our lead screws, and our Varian rep greases them. It is recommended to use Super lube on them. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center E-Mail tlong@mercycare.org > -----Original Message----- > From: Orsolini, Joe D [mailto:GDO7Q@hscmail.mcc.virginia.edu] > Sent: Friday, November 15, 2002 10:26 AM > To: Linac-Eng (E-mail) > Subject: MLC Lead Screws > > Does anyone out there put any lube on Varian Mark II lead screws? I know > officially we are not to lube them, but the chatter from them is really > disconcerting. > > Giuseppe 'Joe' Orsolini RT(T) > Service Engineer > 2002-2004 Cancer Center Employee Council Rep > University of Virginia Health System > Department of Radiation Oncology > Division of Radiological Physics > Box 800375 > Charlottesville, VA 22908-0375 > *: orsolini@virginia.edu > 434-924-9422 (w) > 434-982-3520 (fax) > 434-970-8165 (pager) > > ------=_NextPart_000_000B_01C28CAE.59D40320 Content-Type: text/x-vcard; name="Barnardo Chris (E-mail).vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Barnardo Chris (E-mail).vcf" BEGIN:VCARD VERSION:2.1 N:Chris;Barnardo FN:Barnardo Chris (E-mail) EMAIL;PREF;INTERNET:cbarnardo@scf.sk.ca REV:20020812T185719Z END:VCARD ------=_NextPart_000_000B_01C28CAE.59D40320-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Nov 15 22:44:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18CoG9-000159-00; Fri, 15 Nov 2002 22:44:17 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1442E1105E4; Fri, 15 Nov 2002 22:38:34 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA28436 for linac-eng-list; Fri, 15 Nov 2002 15:22:04 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA28432 for ; Fri, 15 Nov 2002 15:22:03 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id gAFLL1t4093538; Fri, 15 Nov 2002 16:21:01 -0500 Message-ID: <3DD5653A.6010508@hsc.vcu.edu> Date: Fri, 15 Nov 2002 16:20:58 -0500 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Chris Barnardo Cc: "'Tyson Long'" , "Linac-Engineers, Listserver (E-mail)" Subject: Re: MLC Lead Screws References: <000a01c28ce0$a46e7320$2c3818ac@scadomain.local> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 15 Nov 2002 16:20:58 -0500 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: Chris Barnardo Cc: "'Tyson Long'" , "Linac-Engineers, Listserver (E-mail)" Subject: Re: MLC Lead Screws Sender: owner-linac-eng@plato.aristotle.net You can lubricate Mark II lead screws, a little goes a long way, and the excess needs to be removed. You SHOULD NOT lubricate Millenium MLC leaf lead screws, Unless you are creating job security. Just a thought, Chris Bartee Chris Barnardo wrote: > I certainly hope you are not using SUPER LUBE on the lead screws for the >leaves. This will cause no end of problems with leaves sticking. > > We have a millenium MLC here and use the slightest amount of Tri Flow which >is a teflon based lubricant. > > I don't know the Mark series MLC but assume the same problems can exist >with using grease on the leaf lead screws. > >Chris Barnardo >Physics Tech >Saskatoon Cancer Centre >20 Campus Drive >Saskatoon, Sk >Canada >S7N 4H4 > >Ph: (306) 655-2699 >Fax: (306) 655-2701 >e-mail: cbarnardo@scf.sk.ca > > > >-----Original Message----- >From: owner-linac-eng@plato.aristotle.net >[mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Tyson Long >Sent: Friday, November 15, 2002 12:26 PM >To: List Server (E-mail 2) >Subject: RE: MLC Lead Screws > > >Who told you not go grease the lead screws. We have always greased our lead >screws, and our Varian rep greases them. It is recommended to use Super >lube on them. > >Tyson Long >Bio-Med Equipment Specialist >Mercy Medical Center >E-Mail tlong@mercycare.org > > > >> -----Original Message----- >>From: Orsolini, Joe D [mailto:GDO7Q@hscmail.mcc.virginia.edu] >>Sent: Friday, November 15, 2002 10:26 AM >>To: Linac-Eng (E-mail) >>Subject: MLC Lead Screws >> >>Does anyone out there put any lube on Varian Mark II lead screws? I know >>officially we are not to lube them, but the chatter from them is really >>disconcerting. >> >>Giuseppe 'Joe' Orsolini RT(T) >>Service Engineer >>2002-2004 Cancer Center Employee Council Rep >>University of Virginia Health System >>Department of Radiation Oncology >>Division of Radiological Physics >>Box 800375 >>Charlottesville, VA 22908-0375 >>*: orsolini@virginia.edu >> 434-924-9422 (w) >> 434-982-3520 (fax) >> 434-970-8165 (pager) >> >> >> >> 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 16 00:51:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18CqFI-0001J4-00; Sat, 16 Nov 2002 00:51:32 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 82DD01105E4; Sat, 16 Nov 2002 00:45:42 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA02166 for linac-eng-list; Fri, 15 Nov 2002 17:25:49 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA02162 for ; Fri, 15 Nov 2002 17:25:47 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id RAA23269; Fri, 15 Nov 2002 17:22:10 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C72.00800973 ; Fri, 15 Nov 2002 17:18:30 -0600 X-Lotus-FromDomain: MDACC To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" Message-ID: <86256C72.00800841.00@utm-notesob1.mdacc.tmc.edu> Date: Fri, 15 Nov 2002 17:26:13 -0600 Subject: Re: MLC Lead Screws Mime-Version: 1.0 Content-type: multipart/mixed; Boundary="0__=Jit9cFrlr0icutv0K86RJsoozPC5MSNov4d5vcnOKOndudQwo5ToRew2" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" Date: Fri, 15 Nov 2002 17:26:13 -0600 Subject: Re: MLC Lead Screws Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net --0__=Jit9cFrlr0icutv0K86RJsoozPC5MSNov4d5vcnOKOndudQwo5ToRew2 Content-type: text/plain; charset=us-ascii Content-Disposition: inline My understanding was the a VERY small amount of superlube on the lead screws was the correct approach. The part that should NEVER get lubed is the leaf itself. This is one of the key difference between the Mark types and the Milleniums. There are parts on the Mark series that you are supposed to lubricate. Tim Waldron "Orsolini, Joe D" on 11/15/2002 10:26:20 AM To: "Linac-Eng (E-mail)" cc: (bcc: Timothy J. Waldron/MDACC) Subject: MLC Lead Screws Does anyone out there put any lube on Varian Mark II lead screws? I know officially we are not to lube them, but the chatter from them is really disconcerting. Giuseppe 'Joe' Orsolini RT(T) Service Engineer 2002-2004 Cancer Center Employee Council Rep University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) --0__=Jit9cFrlr0icutv0K86RJsoozPC5MSNov4d5vcnOKOndudQwo5ToRew2 Content-type: application/octet-stream; name="winmail.dat" Content-Disposition: attachment; filename="winmail.dat" Content-transfer-encoding: base64 --0__=Jit9cFrlr0icutv0K86RJsoozPC5MSNov4d5vcnOKOndudQwo5ToRew2-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 16 02:32:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18CrpI-0001Sm-00; Sat, 16 Nov 2002 02:32:48 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6DC221105E4; Sat, 16 Nov 2002 02:26:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA03121 for linac-eng-list; Fri, 15 Nov 2002 19:02:21 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail1.radiological.com (mail1.radiological.com [206.13.127.226]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA03117 for ; Fri, 15 Nov 2002 19:02:19 -0600 (CST) Received: from Unknown [192.191.191.250] by mail1.radiological.com - SurfControl E-mail Filter (4.5); Friday, 15 November 2002, 17:02:25 Received: from RASROUTING-MTA by mail1.radiological.com with Novell_GroupWise; Fri, 15 Nov 2002 17:02:00 -0800 Message-ID: From: "Nelson Lacsina" To: , Cc: Date: Fri, 15 Nov 2002 17:01:50 -0800 Subject: Re: MLC Lead Screws MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Mailer: Novell GroupWise Internet Agent 6.0 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA03118 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson Lacsina" To: , Cc: Date: Fri, 15 Nov 2002 17:01:50 -0800 Subject: Re: MLC Lead Screws Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id TAA03118 Sender: owner-linac-eng@plato.aristotle.net Just rcently came back from MMLC school....From what I understood on the millinium you should not lube any of the lead screws with anything, the composition of the t-nuts allows for low friction on the screw PKE (poly ether ketone)...As far as the Mark series, because of the construction, you should lube the lead screw with the Superlube, making sure to remove excess so it does not get on the leaves themselves...For those of us that have marks, the importance of clean leaves is paramount (I'ts the same with MMLC), especially when you start doing IMRT's.... Nelson >>> 11/15/02 03:26PM >>> My understanding was the a VERY small amount of superlube on the lead screws was the correct approach. The part that should NEVER get lubed is the leaf itself. This is one of the key difference between the Mark types and the Milleniums. There are parts on the Mark series that you are supposed to lubricate. Tim Waldron "Orsolini, Joe D" on 11/15/2002 10:26:20 AM To: "Linac-Eng (E-mail)" cc: (bcc: Timothy J. Waldron/MDACC) Subject: MLC Lead Screws Does anyone out there put any lube on Varian Mark II lead screws? I know officially we are not to lube them, but the chatter from them is really disconcerting. Giuseppe 'Joe' Orsolini RT(T) Service Engineer 2002-2004 Cancer Center Employee Council Rep University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 16 08:38:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18CxXO-0002Ff-00; Sat, 16 Nov 2002 08:38:42 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8F7A01105E4 for ; Sat, 16 Nov 2002 08:32:46 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KOXGLPC91S9S7J9U@med.uu.nl> for kok@radth.med.uu.nl; Sat, 16 Nov 2002 08:30:42 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KOX2KT4YOS9S65PM@med.uu.nl> for kok@radth.med.uu.nl; Sat, 16 Nov 2002 01:45:46 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA02166 for linac-eng-list; Fri, 15 Nov 2002 17:25:49 -0600 (CST) Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA02162 for ; Fri, 15 Nov 2002 17:25:47 -0600 (CST) Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id RAA23269; Fri, 15 Nov 2002 17:22:10 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C72.00800973 ; Fri, 15 Nov 2002 17:18:30 -0600 Date: Fri, 15 Nov 2002 17:26:13 -0600 From: twaldron@mail.mdanderson.org Subject: Re: MLC Lead Screws Sender: owner-linac-eng@plato.aristotle.net To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" Message-id: <86256C72.00800841.00@utm-notesob1.mdacc.tmc.edu> MIME-version: 1.0 Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_3xkn6zRhgBlIcyy0u5mpkg)" Precedence: bulk X-Lotus-FromDomain: MDACC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Fri, 15 Nov 2002 17:26:13 -0600 From: twaldron@mail.mdanderson.org Subject: Re: MLC Lead Screws Sender: owner-linac-eng@plato.aristotle.net To: "Orsolini, Joe D" Cc: "Linac-Eng (E-mail)" X-Lotus-FromDomain: MDACC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f --Boundary_(ID_3xkn6zRhgBlIcyy0u5mpkg) Content-type: text/plain; charset=us-ascii Content-disposition: inline My understanding was the a VERY small amount of superlube on the lead screws was the correct approach. The part that should NEVER get lubed is the leaf itself. This is one of the key difference between the Mark types and the Milleniums. There are parts on the Mark series that you are supposed to lubricate. Tim Waldron "Orsolini, Joe D" on 11/15/2002 10:26:20 AM To: "Linac-Eng (E-mail)" cc: (bcc: Timothy J. Waldron/MDACC) Subject: MLC Lead Screws Does anyone out there put any lube on Varian Mark II lead screws? I know officially we are not to lube them, but the chatter from them is really disconcerting. Giuseppe 'Joe' Orsolini RT(T) Service Engineer 2002-2004 Cancer Center Employee Council Rep University of Virginia Health System Department of Radiation Oncology Division of Radiological Physics Box 800375 Charlottesville, VA 22908-0375 *: orsolini@virginia.edu 434-924-9422 (w) 434-982-3520 (fax) 434-970-8165 (pager) --Boundary_(ID_3xkn6zRhgBlIcyy0u5mpkg) Content-type: application/octet-stream; name=winmail.dat Content-disposition: attachment; filename=winmail.dat Content-transfer-encoding: BASE64 --Boundary_(ID_3xkn6zRhgBlIcyy0u5mpkg)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 16 21:12:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18D9IV-0004BN-00; Sat, 16 Nov 2002 21:12:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ABD2F1105E4; Sat, 16 Nov 2002 21:05:53 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA13605 for linac-eng-list; Sat, 16 Nov 2002 13:45:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-d03.mx.aol.com (imo-d03.mx.aol.com [205.188.157.35]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA13601 for ; Sat, 16 Nov 2002 13:45:33 -0600 (CST) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-d03.mx.aol.com (mail_out_v34.13.) id y.91.2627f9a8 (4328) for ; Sat, 16 Nov 2002 14:44:59 -0500 (EST) Message-ID: <91.2627f9a8.2b07fa3b@aol.com> Date: Sat, 16 Nov 2002 14:44:59 EST Subject: CL 2500 wave guide To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_91.2627f9a8.2b07fa3b_boundary" X-Mailer: AOL 8.0 for Windows US sub 230 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Sat, 16 Nov 2002 14:44:59 EST Subject: CL 2500 wave guide To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_91.2627f9a8.2b07fa3b_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to all on list I am in search of a Varian 2500 wave guide. If anyone out there knows of one or has any information where I may be able to locate one please contact me. Thanks Mike Liddicote Accelerator Associates (909) 279-9853 --part1_91.2627f9a8.2b07fa3b_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to all on list
           I am in search of a Varian  2500 wave guide.  If anyone out there knows of one or has any information where I may be able to locate one please contact me.  Thanks
    Mike Liddicote
    Accelerator Associates
    (909) 279-9853     --part1_91.2627f9a8.2b07fa3b_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 18 17:02:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18DoMT-0008OH-00; Mon, 18 Nov 2002 17:02:57 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 69B1F1105E7; Mon, 18 Nov 2002 16:55:40 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA11773 for linac-eng-list; Mon, 18 Nov 2002 09:25:51 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA11769 for ; Mon, 18 Nov 2002 09:25:49 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Mon, 18 Nov 2002 10:31:28 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C55D@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Mon, 18 Nov 2002 10:31:24 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Mon, 18 Nov 2002 10:31:24 -0500 Sender: owner-linac-eng@plato.aristotle.net Hello all, I know that I have seen traffic concerning the availability of milinium MLC motors on the list before. However i failed to copy this info. I am looking for a good second source for the motors other than Varian. I understand that the other two sorces for parts Tech Ops and RadParts may have some trouble suppling these? If anyone has found a reliable source would you please let me know. Thank you, Bill Hughes whughes@trcc.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 18 19:30:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18DqfB-0000qf-00; Mon, 18 Nov 2002 19:30:25 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B499E11130F; Mon, 18 Nov 2002 19:23:09 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA13933 for linac-eng-list; Mon, 18 Nov 2002 11:47:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from salemhospital.org ([198.107.63.132]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA13929 for ; Mon, 18 Nov 2002 11:47:32 -0600 (CST) Received: from Salem#032#Hospital-Message_Server by salemhospital.org with Novell_GroupWise; Mon, 18 Nov 2002 09:47:27 -0800 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Mon, 18 Nov 2002 09:47:05 -0800 From: "CHRISTOPHER JENKINS" To: , Subject: Re: MMLC Motors Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA13930 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 18 Nov 2002 09:47:05 -0800 From: "CHRISTOPHER JENKINS" To: , Subject: Re: MMLC Motors Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA13930 Sender: owner-linac-eng@plato.aristotle.net Bill, I know that Radiation Electronics stocks both the half- and full-leaf MMLC motors. I've been using them and have had no problems. www.radiationelectronics.net , 1-888-850-9729 Hope this helps, Chris Christopher Jenkins Medical Physicist Salem Hospital Regional Cancer Care Services 875 Oak St SE Salem, Oregon 97309-5014 503-561-6820 503-561-4789 Fax >>> "Hughes, William H." 11/18 7:31 AM >>> Hello all, I know that I have seen traffic concerning the availability of milinium MLC motors on the list before. However i failed to copy this info. I am looking for a good second source for the motors other than Varian. I understand that the other two sorces for parts Tech Ops and RadParts may have some trouble suppling these? If anyone has found a reliable source would you please let me know. Thank you, Bill Hughes whughes@trcc.org 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 18 21:11:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18DsEv-00018F-00; Mon, 18 Nov 2002 21:11:25 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E7E1711130F; Mon, 18 Nov 2002 21:04:07 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA15786 for linac-eng-list; Mon, 18 Nov 2002 13:42:11 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mbpcc_exchange.ololrmc.com ([64.56.25.163]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA15781 for ; Mon, 18 Nov 2002 13:42:07 -0600 (CST) Received: by library1.itp.ucsb.edu with Internet Mail Service (5.5.2656.59) id ; Mon, 18 Nov 2002 13:41:20 -0600 Message-ID: From: "Hidalgo, Dr Oscar" To: linac-eng@plato.aristotle.net Subject: FW: A Poem PLEASE READ. This seems to be a hoax, sorry I forwarde d to soon. Date: Mon, 18 Nov 2002 13:41:19 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hidalgo, Dr Oscar" To: linac-eng@plato.aristotle.net Subject: FW: A Poem PLEASE READ. This seems to be a hoax, sorry I forwarde d to soon. Date: Mon, 18 Nov 2002 13:41:19 -0600 Sender: owner-linac-eng@plato.aristotle.net -----Original Message----- From: Johnson, Michael Sent: Monday, November 11, 2002 4:23 PM To: Subject: RE: A Poem PLEASE READ It is a nice sentiment, but this is a hoax. Do not propagate it by further forwarding. There is no way to track forwarded e-mail. See the Urban Legend Web page description and history of this hoax: http://www.snopes.com/inboxer/children/mydek.htm Some of the numerous versions in circulation contain an exhortation from Dr. Dennis Shields of the Department of Developmental and Molecular Biology at the Albert Einstein College of Medicine of Yeshiva University. Like many others in the history of Internet lore, his name mysteriously came to be attached to a hoax. As he said about it: Unfortunately, this letter is a complete hoax; it has nothing to do with me, my Institution or the American Cancer Society. Several versions of this letter are now circulating, so please ignore all of them and DO NOT PASS IT ON. Thank God the American Cancer Society doesn't have an America Online address, else by now they'd be swamped with copies of forwarded messages from well-meaning but terribly misguided people. (As is becoming the norm for large organizations, the ACS has its own domain name: www.cancer.org) . Even so, the various ACS offices around the country have been hit with calls asking about this most touching e-mail, and manpower that could be put to much better use ended up staffing phones and answering e-mail. (It's ironic, that. The families of real dying seven-year-olds end up getting the short end of the stick because of this outpouring of love for a fictitious child.) The ACS position is quite simple: they "do not endorse the use of chain letters." Ever. They've also told me that this particular "use of the Society's name is unauthorized." Also, they don't know any Jessica Mydek. Indeed, they're doing their level best to investigate where this wild e-mail came from. It certainly wasn't from them. (Check out what they have to say about it at the American Cancer Society's web site.) Michael S. Johnson Communications Director Mary Bird Perkins Cancer Center 4950 Essen Lane Baton Rouge, LA 70809-3482 :: 225.215.1206 P 225.766.7203 F :: mailto:michaelj@marybird.com http://www.marybird.org ---------- From: Brown, Esie Sent: Monday, November 11, 2002 3:35 PM To: Anderson, Yolando; Asmus, Tammy; Atkins, Brian; Babin, Kathy; Bedwell, Crystal; Bice, Dr William; Billings, Dr Frederic; Billings\Patten Nurse; Bishop Ott Conference Center; Bloomstone, Ajaye; Boardroom (MBPCC); Brady, Stacey; Broussard, Faith; Chemoroom; Clinac 18 (Ham); Clinac 21EX (Cov); Clinac 4 (Ham); Clinac 4 (MBPCC); Daigle, Teresa; Dalier, Lynn; Davis, Linda; Duet, Darren; Duke, Gay; Edwards, Sandi; Edwards, Theresa; Fetters, Angele; Fields, Dr Robert; Frontdesk (MBPCC); Gipson, Denise; Guercio, Janet; Guidry, Jean; Hanson, Dr David; Harman, Sharon; Harvey, Janis; Hayden, Sherri; Hidalgo, Oscar; Holland, Kim; Info, Web; Inoculate; Johnson, Dr. Sheldon; Johnson, Michael; Kennedy, Cora; L.H.O.A. Schedule; Lab 5th Floor (MBPCC); Landry, Debbie; Levine, Dr Renee; Livingston, Mary; Lo, Dr Kenneth; McCallum, Lori; McDaniel, Cliff; Meadors, Ronnie; Michel, Tabatha; Monce, Sharyn; Moore, Hillar; Myshrall, Sharon; Nowacki, Paul; Parker, Linda; Patten, Dr Judd; Pellichino, Gina; Randel, Jill; Rao, Mamta; Ryan, Wilma; Sablan, Darlene; Sanders, Catherine; Seagate; Sharkey, Lesa; Simulator (Cov); Smith, Kevin; Smith, Rhonda; Stam, Angela; Stevens, Todd; Students, Physics; Summers, Pat; Talbert, Pat; Tessier, Sandra; Thomas, Sandra; Thompson, Cathy; Truxillo, Brenda; Vaughn, Laura; Vollmer, Debby; Walke, Mary; Wall, Dayna; Weber, Vickie; Weill, Lynn; Williams, Lisa; Willoz, Desiree; Worrell, Gloria; Wright, Trisha; Young, Debra Subject: FW: A Poem PLEASE READ -----Original Message----- From: Tonya T. Krone [SMTP:krone@ulm.edu] Sent: Monday, November 11, 2002 2:16 PM To: Dr. Paxton Oliver; Shelly Bailes; Patti Calk; Heather Colvin; Nekendric Davis; Judy Fellows; chad hinton; Tonya Holland; Dr. David Irwin; Craig Jarvis; brian johnson; kelley Candy; Thomas Lamas; Chad Little; Jesse Mangum; Jacob Monistere; Huey Nguyen; Travis Nguyen; Laura Pruitt; Tashombe O. Six; Hillary Windham; Tara Whatley; Jennifer Vince; Shirley Thompson; Jason Smith; Gina Smith; Victor Simoneaux; JoEllen Showers; John Rettenmayer; Amy Reed; Charles Pryor; Papa; James Murrell; Michelle Moore; Margaret Meredith; Kyle McNeil; Jerry McNeil; Georgia McMurray; Nancy Lowery; Leslie Laurence; Rhea Lamaison; Misty Kimball; Ellen Johnson; Norma Johnson; Helen Huckleberry; Terri Hendrix; Janet Haedicke; Florencetta Gibson; John Gardner; Linda Foster; Joseph Feldhaus; Kay Ellsworth; Donna Eichhorn; Michelle Dowdy; Jessica Dolecheck; Christi Deshotel; Kathy Davis; Sally; Sharon Chaney; Laura Carwile; Linda Bryan; Brown, Esie; Greg Bradley; Libby Bennett; Brett Bennett; Carmen Barker; Andy Allen Subject: Fw: A Poem PLEASE READ We all seem to stay so busy. This is just one more example of how we need to "take time to smell the roses". - T. Krone Sent: Monday, November 11, 2002 9:39 AM Subject: A Poem PLEASE READ Please DO take the TIME and read this poem...I miss my childhood, high school and college days so much sometimes... I try to remind myself everyday of how lucky I am to have my health, my wonderful family and friends and so many wonderful memories to look back on in my (almost) 37 years of living! Deb ---------------------- Forwarded Message: --------------------- Poem was written by a terminally ill young girl in a New York Hospital. It was sent by a medical doctor - Make sure to read what is in the closing statement AFTER THE POEM. SLOW DANCE Have you ever watched kids On a merry-go-round? Or listened to the rain Slapping on the ground? Ever followed a butterfly's erratic flight? Or gazed at the sun into the fading night? You better slow down. Don't dance so fast. Time is short. The music won't last. Do you run through each day On the fly? When you ask How are you? Do you hear the reply? When the day is done Do you lie in your bed With the next hundred chores Running through your head? You'd better slow down Don't dance so fast. Time is short. The music won't last. Ever told your child, We'll do it tomorrow? And in your haste, Not see his sorrow? Ever lost touch, Let a good friendship die Cause you never had time To call and say,"hi" You'd better slow down. Don't dance so fast. Time is short. The music won't last. When you run so fast to get somewhere You miss half the fun of getting there. When you worry and hurry through your day, It is like an unopened gift.... Thrown away. Life is not a race. Do take it slower Hear the music Before the song is over. PLEASE FORWARD THIS TO HELP THIS LITTLE GIRL. ALL FORWARDED E-MAILS ARE TRACKED TO OBTAIN THE TOTAL COUNT. Dear All: PLEASE pass this mail on to everybody you know. It is the request of a special little girl who will soon leave this world as she has cancer. Please send this to everyone you know or don't know. This little girl has 6 months left to live, and as her dying wish, She wanted to send a letter telling everyone to live their life to the fullest, since she never will. She'll never make it to prom, graduate from high school, or get married and have a family of her own. By you sending this to as many people as possible, you can give her and her family a little hope, because with every name that this is sent to, The American Cancer Society will donate 3 cents per name to her treatment and recovery plan. One guy sent this to 500 people! So I know that we can send it to at least 5 or 6. Just think it could be you one day. It's not even your money, just your time! PLEASE PASS ON AS A LAST REQUEST Dr. Dennis Shields, Professor Department of Developmental and Molecular Biology 1300 Morris Park Avenue Bronx, New York 10461 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This outbound email has been scanned for all viruses by Red Wing Shoe Company via the MessageLabs SkyScan service. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 18 22:20:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18DtKD-0001H2-00; Mon, 18 Nov 2002 22:20:57 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8C21D11130F for ; Mon, 18 Nov 2002 22:13:38 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KP120O6RY89SACZO@med.uu.nl> for kok@radth.med.uu.nl; Mon, 18 Nov 2002 22:12:41 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KP120M9XZ89S9QQ4@med.uu.nl> for kok@radth.med.uu.nl; Mon, 18 Nov 2002 22:12:39 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA15730 for linac-eng-list; Mon, 18 Nov 2002 13:37:20 -0600 (CST) Received: from mbpcc_exchange.ololrmc.com ([64.56.25.163]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA15726 for ; Mon, 18 Nov 2002 13:37:15 -0600 (CST) Received: by library1.itp.ucsb.edu with Internet Mail Service (5.5.2656.59) id ; Mon, 18 Nov 2002 13:36:26 -0600 Date: Mon, 18 Nov 2002 13:36:26 -0600 From: "Hidalgo, Dr Oscar" Subject: FW: A Poem PLEASE READ Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 18 Nov 2002 13:36:26 -0600 From: "Hidalgo, Dr Oscar" Subject: FW: A Poem PLEASE READ Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f -----Original Message----- From: Brown, Esie [SMTP:EBrown@ololrmc.com] Sent: Monday, November 11, 2002 3:35 PM To: Anderson, Yolando; Asmus, Tammy; Atkins, Brian; Babin, Kathy; Bedwell, Crystal; Bice, Dr William; Billings, Dr Frederic; Billings\Patten Nurse; Bishop Ott Conference Center; Bloomstone, Ajaye; Boardroom (MBPCC); Brady, Stacey; Broussard, Faith; Chemoroom; Clinac 18 (Ham); Clinac 21EX (Cov); Clinac 4 (Ham); Clinac 4 (MBPCC); Daigle, Teresa; Dalier, Lynn; Davis, Linda; Duet, Darren; Duke, Gay; Edwards, Sandi; Edwards, Theresa; Fetters, Angele; Fields, Dr Robert; Frontdesk (MBPCC); Gipson, Denise; Guercio, Janet; Guidry, Jean; Hanson, Dr David; Harman, Sharon; Harvey, Janis; Hayden, Sherri; Hidalgo, Oscar; Holland, Kim; Info, Web; Inoculate; Johnson, Dr. Sheldon; Johnson, Michael; Kennedy, Cora; L.H.O.A. Schedule; Lab 5th Floor (MBPCC); Landry, Debbie; Levine, Dr Renee; Livingston, Mary; Lo, Dr Kenneth; McCallum, Lori; McDaniel, Cliff; Meadors, Ronnie; Michel, Tabatha; Monce, Sharyn; Moore, Hillar; Myshrall, Sharon; Nowacki, Paul; Parker, Linda; Patten, Dr Judd; Pellichino, Gina; Randel, Jill; Rao, Mamta; Ryan, Wilma; Sablan, Darlene; Sanders, Catherine; Seagate; Sharkey, Lesa; Simulator (Cov); Smith, Kevin; Smith, Rhonda; Stam, Angela; Stevens, Todd; Students, Physics; Summers, Pat; Talbert, Pat; Tessier, Sandra; Thomas, Sandra; Thompson, Cathy; Truxillo, Brenda; Vaughn, Laura; Vollmer, Debby; Walke, Mary; Wall, Dayna; Weber, Vickie; Weill, Lynn; Williams, Lisa; Willoz, Desiree; Worrell, Gloria; Wright, Trisha; Young, Debra Subject: FW: A Poem PLEASE READ -----Original Message----- From: Tonya T. Krone [SMTP:krone@ulm.edu] Sent: Monday, November 11, 2002 2:16 PM To: Dr. Paxton Oliver; Shelly Bailes; Patti Calk; Heather Colvin; Nekendric Davis; Judy Fellows; chad hinton; Tonya Holland; Dr. David Irwin; Craig Jarvis; brian johnson; kelley Candy; Thomas Lamas; Chad Little; Jesse Mangum; Jacob Monistere; Huey Nguyen; Travis Nguyen; Laura Pruitt; Tashombe O. Six; Hillary Windham; Tara Whatley; Jennifer Vince; Shirley Thompson; Jason Smith; Gina Smith; Victor Simoneaux; JoEllen Showers; John Rettenmayer; Amy Reed; Charles Pryor; Papa; James Murrell; Michelle Moore; Margaret Meredith; Kyle McNeil; Jerry McNeil; Georgia McMurray; Nancy Lowery; Leslie Laurence; Rhea Lamaison; Misty Kimball; Ellen Johnson; Norma Johnson; Helen Huckleberry; Terri Hendrix; Janet Haedicke; Florencetta Gibson; John Gardner; Linda Foster; Joseph Feldhaus; Kay Ellsworth; Donna Eichhorn; Michelle Dowdy; Jessica Dolecheck; Christi Deshotel; Kathy Davis; Sally; Sharon Chaney; Laura Carwile; Linda Bryan; Brown, Esie; Greg Bradley; Libby Bennett; Brett Bennett; Carmen Barker; Andy Allen Subject: Fw: A Poem PLEASE READ We all seem to stay so busy. This is just one more example of how we need to "take time to smell the roses". - T. Krone Sent: Monday, November 11, 2002 9:39 AM Subject: A Poem PLEASE READ Please DO take the TIME and read this poem...I miss my childhood, high school and college days so much sometimes... I try to remind myself everyday of how lucky I am to have my health, my wonderful family and friends and so many wonderful memories to look back on in my (almost) 37 years of living! Deb ---------------------- Forwarded Message: --------------------- Poem was written by a terminally ill young girl in a New York Hospital. It was sent by a medical doctor - Make sure to read what is in the closing statement AFTER THE POEM. SLOW DANCE Have you ever watched kids On a merry-go-round? Or listened to the rain Slapping on the ground? Ever followed a butterfly's erratic flight? Or gazed at the sun into the fading night? You better slow down. Don't dance so fast. Time is short. The music won't last. Do you run through each day On the fly? When you ask How are you? Do you hear the reply? When the day is done Do you lie in your bed With the next hundred chores Running through your head? You'd better slow down Don't dance so fast. Time is short. The music won't last. Ever told your child, We'll do it tomorrow? And in your haste, Not see his sorrow? Ever lost touch, Let a good friendship die Cause you never had time To call and say,"hi" You'd better slow down. Don't dance so fast. Time is short. The music won't last. When you run so fast to get somewhere You miss half the fun of getting there. When you worry and hurry through your day, It is like an unopened gift.... Thrown away. Life is not a race. Do take it slower Hear the music Before the song is over. PLEASE FORWARD THIS TO HELP THIS LITTLE GIRL. ALL FORWARDED E-MAILS ARE TRACKED TO OBTAIN THE TOTAL COUNT. Dear All: PLEASE pass this mail on to everybody you know. It is the request of a special little girl who will soon leave this world as she has cancer. Please send this to everyone you know or don't know. This little girl has 6 months left to live, and as her dying wish, She wanted to send a letter telling everyone to live their life to the fullest, since she never will. She'll never make it to prom, graduate from high school, or get married and have a family of her own. By you sending this to as many people as possible, you can give her and her family a little hope, because with every name that this is sent to, The American Cancer Society will donate 3 cents per name to her treatment and recovery plan. One guy sent this to 500 people! So I know that we can send it to at least 5 or 6. Just think it could be you one day. It's not even your money, just your time! PLEASE PASS ON AS A LAST REQUEST Dr. Dennis Shields, Professor Department of Developmental and Molecular Biology 1300 Morris Park Avenue Bronx, New York 10461 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This outbound email has been scanned for all viruses by Red Wing Shoe Company via the MessageLabs SkyScan service. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 18 22:55:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18DtrP-0001MN-00; Mon, 18 Nov 2002 22:55:15 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 972EA11130F; Mon, 18 Nov 2002 22:47:54 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA17934 for linac-eng-list; Mon, 18 Nov 2002 15:17:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep03.biz.rr.com (fep03.biz.rr.com [24.30.201.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA17930 for ; Mon, 18 Nov 2002 15:17:45 -0600 (CST) Received: from pent4 ([24.174.72.124]) by fep03.biz.rr.com with ESMTP id <20021118211744.IZFB1580.fep03.biz.rr.com@pent4> for ; Mon, 18 Nov 2002 16:17:44 -0500 From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Mon, 18 Nov 2002 15:16:53 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: FW: A Poem PLEASE READ Reply-To: acceltek@acceltekservice.com Message-ID: <3DD90465.16103.17043CB@localhost> In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Mon, 18 Nov 2002 15:16:53 -0600 Subject: Re: FW: A Poem PLEASE READ Reply-To: acceltek@acceltekservice.com In-reply-to: Sender: owner-linac-eng@plato.aristotle.net From: "Hidalgo, Dr Oscar" To: linac-eng@plato.aristotle.net Subject: FW: A Poem PLEASE READ Date sent: Mon, 18 Nov 2002 13:36:26 -0600 > > Subject: Fw: A Poem PLEASE READ > > We all seem to stay so busy. This is just one more example of how we need to > "take time to smell the roses". - T. Krone > > Sent: Monday, November 11, 2002 9:39 AM > Subject: A Poem PLEASE READ > > > Please DO take the TIME and read this poem...I miss my > childhood, high school and college days so much > sometimes..e: --------------------- > ------- Massive Snip ------------------------ > Poem was written by a terminally ill young girl in a New York Hospital. > > > It was sent by a medical doctor - Make sure to read what is in the > closing > statement AFTER THE POEM. > > > SLOW DANCE > > -------------- Another Massive SNIP -------------------- Sorry Doc, This message, poem whatever, is a hoax. Please see: http://www.snopes.com/inboxer/children/mydek.htm This one has been around since 1997 apparently. As noted in the snopes report, the American Cancer Society supports NO chain letter type funding efforts, and in fact, they have to SPEND money to combat such hoaxes. See the ACS link at the bottom of the snopes report also. Tom McCausland AccelTek Inc. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 20 09:01:19 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18EPnT-000570-00; Wed, 20 Nov 2002 09:01:19 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 009851112F1; Wed, 20 Nov 2002 08:53:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA17751 for linac-eng-list; Wed, 20 Nov 2002 01:33:46 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from caviar.isi.uu.nl (caviar.isi.uu.nl [131.211.144.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA17747 for ; Wed, 20 Nov 2002 01:33:45 -0600 (CST) Received: from giraf.radth.ruu.nl (giraf.radth.ruu.nl [131.211.145.21]) by caviar.isi.uu.nl (Postfix) with ESMTP id F28E31112F3 for ; Wed, 20 Nov 2002 08:28:46 +0100 (MET) Received: from (kanon.radth.ruu.nl) [131.211.145.47] (mail) by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18EPPn-0004x2-00; Wed, 20 Nov 2002 08:36:51 +0100 Received: from kok by kanon.radth.ruu.nl with local (Exim 3.35 #1 (Debian)) id 18EPPm-00030Z-00; Wed, 20 Nov 2002 08:36:51 +0100 To: linac-eng@plato.aristotle.net Subject: A Poem PLEASE READ. From: Jan Kok Message-Id: Date: Wed, 20 Nov 2002 08:36:51 +0100 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: linac-eng@plato.aristotle.net Subject: A Poem PLEASE READ. From: Jan Kok Date: Wed, 20 Nov 2002 08:36:51 +0100 Sender: owner-linac-eng@plato.aristotle.net The Wandering Engineer. An irksome drudgery seems it to plod on, Through hot and dusty ways, or pelting storm, A vagrant Engineer under a heavy load, Bent as he moves, and needing frequent rest; Yet do such travellers find their own delight; And their hard service, deemed debasing now Gained merited respect in simpler times. THE EXCURSION. By William Wordsworth. http://www.bartleby.com/145/ww398.html 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 20 12:56:26 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18ETT0-00083u-00; Wed, 20 Nov 2002 12:56:26 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 32E451112F1; Wed, 20 Nov 2002 12:48:14 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA20443 for linac-eng-list; Wed, 20 Nov 2002 05:21:12 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw1.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id FAA20439 for ; Wed, 20 Nov 2002 05:21:10 -0600 (CST) Received: from intfw1.phci.org (root@localhost) by intfw1.phci.org with ESMTP id gAKBKZpi025958 for ; Wed, 20 Nov 2002 05:20:35 -0600 (CST) Received: from wmhmail1.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw1.phci.org with SMTP id gAKBKYnk025955 for ; Wed, 20 Nov 2002 05:20:34 -0600 (CST) Received: through eSafe SMTP Relay 1036428421; Wed Nov 20 05:20:34 2002 Received: by wmhmail1.phci.org with Internet Mail Service (5.5.2653.19) id ; Wed, 20 Nov 2002 05:20:34 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5FE7@wmhmail.phci.org> From: "Williams, Rod" To: Linac-Eng@plato.aristotle.net Subject: VARIAN EXACT COUCH INSERT REPLACEMENT Date: Wed, 20 Nov 2002 05:20:32 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: Linac-Eng@plato.aristotle.net Subject: VARIAN EXACT COUCH INSERT REPLACEMENT Date: Wed, 20 Nov 2002 05:20:32 -0600 Sender: owner-linac-eng@plato.aristotle.net Hi to the group. We have bought and tried the New Med-Tec solid insert for the Exact couch, it takes the place of the ever breaking grided insert that Varian uses. The techs love it the Docs love it (no sag,) and it should last for a long time. It can be ordered from Med-Tec 1-800-842-8688 Part Number MT-IL3103. Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 1,, X-Coding-System: iso-8859-1-unix Mail-from: From mc.shapiro@snet.net Wed Nov 20 16:44:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18EX25-0002fx-00; Wed, 20 Nov 2002 16:44:53 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7D1031112F1 for ; Wed, 20 Nov 2002 16:36:37 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KP3IUGUX809SB98Z@med.uu.nl> for kok@radth.med.uu.nl; Wed, 20 Nov 2002 16:36:25 +0100 Received: from mta3.snet.net (mta3.snet.net [204.60.203.69]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KP3IUF7IZE9S95XY@med.uu.nl> for kok@radth.med.uu.nl; Wed, 20 Nov 2002 16:36:23 +0100 Received: from INSPIRON (53.126.252.64.snet.net [64.252.126.53]) by mta3.snet.net (8.12.3/8.12.3/SNET-smtp-1.2/D-1.1.1.1/O-1.1.1.1) with ESMTP id gAKFasoI022994 for ; Wed, 20 Nov 2002 10:36:55 -0500 (EST) Date: Wed, 20 Nov 2002 10:41:37 -0500 From: Martin Shapiro Subject: RE: A Poem PLEASE READ. In-reply-to: To: Jan Kok Reply-To: mshapiro@accelinear.com Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal *** EOOH *** Date: Wed, 20 Nov 2002 10:41:37 -0500 From: Martin Shapiro Subject: RE: A Poem PLEASE READ. In-reply-to: To: Jan Kok Reply-To: mshapiro@accelinear.com X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Nice poem about train engineers. Wordsworth lived (1770-1850)long enough to experience the earliest days of the industrial revolution including the invention of the locomotive. At the time of his death trains could do 20mph at best. Ran on wood, coal or peat. Ran on non-standardized tracks and beds. Had poor brakes and best yet tended to explode due to steam overpressure. Could have used some mechanical engineers to improve safety but they didn't show up till much later in that century. -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Jan Kok Sent: Wednesday, November 20, 2002 2:37 AM To: linac-eng@plato.aristotle.net Subject: A Poem PLEASE READ. The Wandering Engineer. An irksome drudgery seems it to plod on, Through hot and dusty ways, or pelting storm, A vagrant Engineer under a heavy load, Bent as he moves, and needing frequent rest; Yet do such travellers find their own delight; And their hard service, deemed debasing now Gained merited respect in simpler times. THE EXCURSION. By William Wordsworth. http://www.bartleby.com/145/ww398.html 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 20 21:12:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18EbCi-0003nn-00; Wed, 20 Nov 2002 21:12:08 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6A5C01112F1; Wed, 20 Nov 2002 21:03:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA27814 for linac-eng-list; Wed, 20 Nov 2002 13:24:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tc00tecpro00009.ssss.gouv.qc.ca (mail.ssss.gouv.qc.ca [199.243.239.5]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA27810 for ; Wed, 20 Nov 2002 13:24:15 -0600 (CST) From: normand_freniere_chrtr@ssss.gouv.qc.ca Importance: Normal X-Priority: 3 (Normal) Subject: To Clinac Varian owners about water additive and possible leaks To: linac-eng@plato.aristotle.net Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Date: Wed, 20 Nov 2002 14:26:39 -0500 Message-ID: Disposition-Notification-To: normand_freniere_chrtr@ssss.gouv.qc.ca X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/20/2002 02:23:01 PM MIME-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27811 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: normand_freniere_chrtr@ssss.gouv.qc.ca Importance: Normal X-Priority: 3 (Normal) Subject: To Clinac Varian owners about water additive and possible leaks To: linac-eng@plato.aristotle.net Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Date: Wed, 20 Nov 2002 14:26:39 -0500 Disposition-Notification-To: normand_freniere_chrtr@ssss.gouv.qc.ca X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/20/2002 02:23:01 PM X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA27811 Sender: owner-linac-eng@plato.aristotle.net Good day to everyone from Trois-Rivieres, Quebec, Canada We would like to know if other Varian Clinac's owners experience water leaks since they add the recommended chemical solutions to the water circuit. In the last year, Varian came out with a new additive to the water circuitry to prevent corrosion, bacteria, algae, etc. This additive is the Nalco 2838 and Nalco 100011781-04 (Varian kit P4440). We started using it about eight months ago with both of our three years old CL21EX linacs. In the last months, we face multiple water leaks on one of the linac. We have got eight leaks up to now, including the klystron and klystron solenoid. Most of the leaks appeared at metal fitting. We are puzzled about what is happening. The first leak appeared at the fitting of a recently three years preventive maintenance changed hose (done five months ago). We suspected the changed hoses batch to be defective, but other leaks appeared at the fitting of unchanged hoses (those replaced at the five years preventive maintenance) and with the build-in pipe of the klystron and klystron's solenoid (solenoid had the leak in the metal pipe, not at the fitting). Everything brings us to focus on the water. Is the new additive appropriate? Varian argues it is. Are we facing a faulty additive kit that would explains the leaks on one of the linac or should we expect future leaks with the other linac? Are we facing a faulty hose batch in addition to few other independent leaks? Have you experience any problem since you use the Nalco 2838 additive to your water circuitry? Sincerely, Normand Frenière, M.Sc., MCCPM Clinical Medical Physicist Centre Hospitalier Régional de Trois-Rivières Radio-oncologie 1991 boul. du Carmel Trois-Rivières Qc G8Z 3R9 e-mail : normand_freniere_chrtr@ssss.gouv.qc.ca 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 21 00:19:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Ee8H-0004C7-00; Thu, 21 Nov 2002 00:19:45 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4BCA81112F3; Thu, 21 Nov 2002 00:11:17 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA03076 for linac-eng-list; Wed, 20 Nov 2002 16:44:33 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA03072 for ; Wed, 20 Nov 2002 16:44:31 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id gAKMhsK13742; Wed, 20 Nov 2002 17:43:54 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C77.007CDDC9 ; Wed, 20 Nov 2002 17:43:52 -0500 X-Lotus-FromDomain: LRCC To: normand_freniere_chrtr@ssss.gouv.qc.ca Cc: linac-eng@plato.aristotle.net, medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Message-ID: <85256C77.007CDC6D.00@mail.lrcc.on.ca> Date: Wed, 20 Nov 2002 17:43:48 -0500 Subject: Re: To Clinac Varian owners about water additive and possible leaks Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: normand_freniere_chrtr@ssss.gouv.qc.ca Cc: linac-eng@plato.aristotle.net, medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Date: Wed, 20 Nov 2002 17:43:48 -0500 Subject: Re: To Clinac Varian owners about water additive and possible leaks Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Let the great water debate start: =========================== We have switched to the Nalco chemical treatment and I don't think that we will. We lost a target and had a major water leak into our guide on one of our Varian 2100's this summer. It was 6 years old and has had the Culligan de-ionizer in the water circuit all of that time. I measured the water conductivity of our machines and this is what I found 21A 33.2 uS/cm 21B 22.6 uS/cm 21C* 1.03uS/cm 21D 1.93 us/cm 21E 19.7 uS/cm 21F 11 uS/cm 21G 13 uS/cm All of the machines are operating fine. The 21A and 21B have never had the deionizer cartridge installed because they are of an older vintage. We use a smaller filter system on these units but since they are working fine we think that the 200kOhm/cm limit might be a lot higher than the water needs to be. With the cartridge in the water system the water conductivity can go up to 500kOhm/cm. The 21C was the only unit that had the deionizer cartridge in the water loop, the 21A and 21B do not use a deionizer. The rest of the machines had their deionizer cartridges bypassed. Another concern here is that water is hard enough to clean out of the high vacuum system, but the NALCO chemical is an alkaline and if some of that got inside your guide you could have a great deal of difficulty getting your machine to work fine after a Target to Guide leak. So we'll just stick with plain distilled water, no additives and wait. We are looking at a way to control the water conductivity by switching in the deionizer in and out of the water system. I'll post more when I know more. Randy McVittie London Regional Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 21 00:38:04 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18EeQ0-0004EK-00; Thu, 21 Nov 2002 00:38:04 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A90061112F3; Thu, 21 Nov 2002 00:29:35 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA03739 for linac-eng-list; Wed, 20 Nov 2002 17:15:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailhub.dmz.benefis.org (benefis-220.benefis.org [12.46.94.220]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA03735 for ; Wed, 20 Nov 2002 17:15:40 -0600 (CST) Received: from migauthsvr.dmz.benefis.org (migauthsvr.dmz.benefis.org [192.168.100.40]) by mailhub.dmz.benefis.org (8.12.5/8.12.5) with SMTP id gAKNFZtt032387 for ; Wed, 20 Nov 2002 16:15:39 -0700 Received: FROM MFACPC14 BY migauthsvr.dmz.benefis.org ; Wed Nov 20 16:01:23 2002 -0700 Message-ID: <001201c290ea$a578ce60$71680a80@MFACPC14.e.benefis.org> From: "Wayne Blaine" To: Subject: Fw: To Clinac Varian owners about water additive and possible leaks Date: Wed, 20 Nov 2002 16:14:59 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Wayne Blaine" To: Subject: Fw: To Clinac Varian owners about water additive and possible leaks Date: Wed, 20 Nov 2002 16:14:59 -0700 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Sender: owner-linac-eng@plato.aristotle.net I converted to the Varian chemicals and removed the Culligan filter about 18 months ago. I've changed the water and chemicals once since than. In the first 5 years of life, using the Culligan system, I replaced the klystron solenoid for internal water leaks. When I changed the water after the first 16 months (yes, I know it's a year, but I just didn't get to it) the water had a yellow tinge to it, but otherwise was normal. I checked the first 2 gallons out of the bottom of the holding tank. I was expecting the worse, everything from copper tidbits to hunks of black water hose. Anyway, after 1 1/2 years no leaks or other water problems to report. I bought two 10 gallon pails of the chemistry from Nalco, the smallest quantity I could buy. The price was still under the cost of small bottles from Varian. I understand the chemicals are now available in small quantities at a decent price, and the last 9.9 gallons of the chemistry I bought have a shelf life that's about over. Wayne Blaine Benefis Healthcare -Subject: To Clinac Varian owners about water additive and possible leaks >Good day to everyone from Trois-Rivieres, Quebec, Canada > >We would like to know if other Varian Clinac's owners experience water >leaks since they add the recommended chemical solutions to the water >circuit. > 1,, X-Coding-System: iso-latin-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 21 01:37:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18EfLc-0004Ji-00; Thu, 21 Nov 2002 01:37:36 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CE7651112F3; Thu, 21 Nov 2002 01:29:06 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA04956 for linac-eng-list; Wed, 20 Nov 2002 18:07:20 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailcity.com (www4.mail.lycos.com [209.202.220.170]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id SAA04952 for ; Wed, 20 Nov 2002 18:07:18 -0600 (CST) Received: from Unknown/Local ([?.?.?.?]) by mailcity.com; Thu, 21 Nov 2002 00:06:31 -0000 To: linac-eng@plato.aristotle.net, normand_freniere_chrtr@ssss.gouv.qc.ca Date: Wed, 20 Nov 2002 19:06:31 -0500 From: "david hall" Message-ID: Mime-Version: 1.0 Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca X-Sent-Mail: off Reply-To: hall.david@lycos.com X-Mailer: MailCity Service X-Priority: 3 Subject: Re: To Clinac Varian owners about water additive and possible leaks X-Sender-Ip: 64.156.155.161 Organization: Lycos Mail (http://www.mail.lycos.com:80) Content-Type: text/plain; charset=us-ascii Content-Language: en Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: linac-eng@plato.aristotle.net, normand_freniere_chrtr@ssss.gouv.qc.ca Date: Wed, 20 Nov 2002 19:06:31 -0500 From: "david hall" Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca X-Sent-Mail: off Reply-To: hall.david@lycos.com X-Priority: 3 Subject: Re: To Clinac Varian owners about water additive and possible leaks X-Sender-Ip: 64.156.155.161 Organization: Lycos Mail (http://www.mail.lycos.com:80) Content-Language: en Sender: owner-linac-eng@plato.aristotle.net Thanks for the heads up......... Dave Hall -- On Wed, 20 Nov 2002 14:26:39 normand_freniere_chrtr wrote: >Good day to everyone from Trois-Rivieres, Quebec, Canada > >We would like to know if other Varian Clinac's owners experience water >leaks since they add the recommended chemical solutions to the water >circuit. > >In the last year, Varian came out with a new additive to the water >circuitry to prevent corrosion, bacteria, algae, etc. This additive is the >Nalco 2838 and Nalco 100011781-04 (Varian kit P4440). We started using it >about eight months ago with both of our three years old CL21EX linacs. > >In the last months, we face multiple water leaks on one of the linac. We >have got eight leaks up to now, including the klystron and klystron >solenoid. Most of the leaks appeared at metal fitting. We are puzzled about >what is happening. > >The first leak appeared at the fitting of a recently three years preventive >maintenance changed hose (done five months ago). We suspected the changed >hoses batch to be defective, but other leaks appeared at the fitting of >unchanged hoses (those replaced at the five years preventive maintenance) >and with the build-in pipe of the klystron and klystron's solenoid >(solenoid had the leak in the metal pipe, not at the fitting). Everything >brings us to focus on the water. > >Is the new additive appropriate? Varian argues it is. Are we facing a >faulty additive kit that would explains the leaks on one of the linac or >should we expect future leaks with the other linac? Are we facing a faulty >hose batch in addition to few other independent leaks? > >Have you experience any problem since you use the Nalco 2838 additive to >your water circuitry? > >Sincerely, > >Normand Frenière, M.Sc., MCCPM >Clinical Medical Physicist >Centre Hospitalier Régional de Trois-Rivières >Radio-oncologie >1991 boul. du Carmel >Trois-Rivières Qc G8Z 3R9 >e-mail : normand_freniere_chrtr@ssss.gouv.qc.ca > > __________________________________________________________ Outgrown your current e-mail service? Get 25MB Storage, POP3 Access, Advanced Spam protection with LYCOS MAIL PLUS. http://login.mail.lycos.com/brandPage.shtml?pageId=plus&ref=lmtplus 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 21 12:25:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18EpSc-0007hx-00; Thu, 21 Nov 2002 12:25:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 557BD11131D; Thu, 21 Nov 2002 12:16:46 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA12493 for linac-eng-list; Thu, 21 Nov 2002 04:51:21 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from intfw2.phci.org (user.phci.org [207.67.109.70]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id EAA12489 for ; Thu, 21 Nov 2002 04:51:16 -0600 (CST) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id gALAoXsn005675; Thu, 21 Nov 2002 04:50:33 -0600 (CST) Received: from wmhmail1.phci.org (smtpscan.phci.org [172.20.3.10]) by intfw2.phci.org with SMTP id gALAoXs0005672; Thu, 21 Nov 2002 04:50:33 -0600 (CST) Received: through eSafe SMTP Relay 1036428421; Thu Nov 21 04:50:33 2002 Received: by wmhmail1.phci.org with Internet Mail Service (5.5.2653.19) id ; Thu, 21 Nov 2002 04:50:33 -0600 Message-ID: <7A3389A8D723D511B2260008C7B2BF390D5FEC@wmhmail.phci.org> From: "Williams, Rod" To: "'normand_freniere_chrtr@ssss.gouv.qc.ca'" , linac-eng@plato.aristotle.net Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Subject: RE: To Clinac Varian owners about water additive and possible lea ks Date: Thu, 21 Nov 2002 04:49:45 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA12490 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" To: "'normand_freniere_chrtr@ssss.gouv.qc.ca'" , linac-eng@plato.aristotle.net Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Subject: RE: To Clinac Varian owners about water additive and possible lea ks Date: Thu, 21 Nov 2002 04:49:45 -0600 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA12490 Sender: owner-linac-eng@plato.aristotle.net I believe that the general conscious is to change the water every 6 months and only add half of the recommended Biocide Nalco 5230 if the brown stuff starts growing. If no brown stuff then I add nothing. I have found that one treatment with the 5230 will last for many clean water changes. I have had problems with the fittings leaking but I believe that somehow a bunch of bad fitting are out in the field, also I have noticed that on my newest machine 2100 s/n 1630 that he factory used antiseize on the water fittings when they put it together. What's up with that??? Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: normand_freniere_chrtr@ssss.gouv.qc.ca > [SMTP:normand_freniere_chrtr@ssss.gouv.qc.ca] > Sent: Wednesday, November 20, 2002 1:27 PM > To: linac-eng@plato.aristotle.net > Cc: medphys@LISTS.WAYNE.EDU; canada-l@irus.rri.on.ca > Subject: To Clinac Varian owners about water additive and possible > leaks > > Good day to everyone from Trois-Rivieres, Quebec, Canada > > We would like to know if other Varian Clinac's owners experience water > leaks since they add the recommended chemical solutions to the water > circuit. > > In the last year, Varian came out with a new additive to the water > circuitry to prevent corrosion, bacteria, algae, etc. This additive is the > Nalco 2838 and Nalco 100011781-04 (Varian kit P4440). We started using it > about eight months ago with both of our three years old CL21EX linacs. > > In the last months, we face multiple water leaks on one of the linac. We > have got eight leaks up to now, including the klystron and klystron > solenoid. Most of the leaks appeared at metal fitting. We are puzzled > about > what is happening. > > The first leak appeared at the fitting of a recently three years > preventive > maintenance changed hose (done five months ago). We suspected the changed > hoses batch to be defective, but other leaks appeared at the fitting of > unchanged hoses (those replaced at the five years preventive maintenance) > and with the build-in pipe of the klystron and klystron's solenoid > (solenoid had the leak in the metal pipe, not at the fitting). Everything > brings us to focus on the water. > > Is the new additive appropriate? Varian argues it is. Are we facing a > faulty additive kit that would explains the leaks on one of the linac or > should we expect future leaks with the other linac? Are we facing a faulty > hose batch in addition to few other independent leaks? > > Have you experience any problem since you use the Nalco 2838 additive to > your water circuitry? > > Sincerely, > > Normand Frenière, M.Sc., MCCPM > Clinical Medical Physicist > Centre Hospitalier Régional de Trois-Rivières > Radio-oncologie > 1991 boul. du Carmel > Trois-Rivières Qc G8Z 3R9 > e-mail : normand_freniere_chrtr@ssss.gouv.qc.ca > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Nov 23 03:11:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18FPlP-0002b3-00; Sat, 23 Nov 2002 03:11:19 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 94F4D1105E1; Sat, 23 Nov 2002 03:01:38 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id TAA03120 for linac-eng-list; Fri, 22 Nov 2002 19:35:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-r08.mx.aol.com (imo-r08.mx.aol.com [152.163.225.104]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id TAA03116 for ; Fri, 22 Nov 2002 19:35:33 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-r08.mx.aol.com (mail_out_v34.13.) id y.17a.1255f001 (3972) for ; Fri, 22 Nov 2002 20:34:44 -0500 (EST) Message-ID: <17a.1255f001.2b103534@aol.com> Date: Fri, 22 Nov 2002 20:34:44 EST Subject: VEO Base Frame To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_17a.1255f001.2b103534_boundary" X-Mailer: AOL 8.0 for Windows US sub 234 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Fri, 22 Nov 2002 20:34:44 EST Subject: VEO Base Frame To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_17a.1255f001.2b103534_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi Everyone: I am in need oof a VEO Base Frame for a Ximatron CX Simulator. Do NOT need the "moving floor" type. I can arrange to have it removed (Without jackhammers) if it's still in the floor. Any assistance would be greatly appreciated. Thank you in advance for your kind assistance!! Garry --part1_17a.1255f001.2b103534_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi Everyone:

    I am in need oof a VEO Base Frame for a Ximatron CX Simulator. Do NOT need the "moving floor" type. I can arrange to have it removed (Without jackhammers) if it's still in the floor. Any assistance would be greatly appreciated.

    Thank you in advance for your kind assistance!!

    Garry     --part1_17a.1255f001.2b103534_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Nov 24 19:22:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18G1OM-0008MX-00; Sun, 24 Nov 2002 19:22:02 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4A33C1112F2; Sun, 24 Nov 2002 19:11:29 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA27011 for linac-eng-list; Sun, 24 Nov 2002 11:52:19 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA27007 for ; Sun, 24 Nov 2002 11:52:18 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Sun, 24 Nov 2002 12:58:00 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C560@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Sun, 24 Nov 2002 12:58:00 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Sun, 24 Nov 2002 12:58:00 -0500 Sender: owner-linac-eng@plato.aristotle.net Hello all. I have a new 2100EX and while checking out the differences I found the DQ'ing thyratron does not appear to be a plug in type. Could someone assist me in the manner of removing and replacing this should I ever need to. My Varian rep could not tell me this procedure. Thanks, Bill Hughes Regional Cancer Center Erie, Pa. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Nov 24 23:26:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18G5D0-0000Ns-00; Sun, 24 Nov 2002 23:26:34 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3672B1112F2; Sun, 24 Nov 2002 23:15:55 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA00359 for linac-eng-list; Sun, 24 Nov 2002 16:03:30 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc51.attbi.com (rwcrmhc51.attbi.com [204.127.198.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA00355 for ; Sun, 24 Nov 2002 16:03:28 -0600 (CST) Received: from attbi.com (12-247-219-69.client.attbi.com[12.247.219.69]) by rwcrmhc51.attbi.com (rwcrmhc51) with SMTP id <2002112422025305100rrte0e>; Sun, 24 Nov 2002 22:02:55 +0000 Date: Sun, 24 Nov 2002 16:02:36 -0600 Subject: Re: Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v548) Cc: Rich Kimball , "'linac-eng@plato.aristotle.net'" To: "Hughes, William H." From: Rich Kimball In-Reply-To: <1082075133C0D511AAC8000255F0072924C560@beatrice.trcc.org> Message-Id: <70D35A79-FFF8-11D6-B952-000393BB5024@attbi.com> Content-Transfer-Encoding: 7bit X-Mailer: Apple Mail (2.548) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 24 Nov 2002 16:02:36 -0600 Subject: Re: Cc: Rich Kimball , "'linac-eng@plato.aristotle.net'" To: "Hughes, William H." From: Rich Kimball In-Reply-To: <1082075133C0D511AAC8000255F0072924C560@beatrice.trcc.org> Sender: owner-linac-eng@plato.aristotle.net Bill, The type of tube you have is a Marconi 8503AF in your 21EX. It has hard wired leads on the tube with terminal lugs on the ends where it attaches to the necessary modulator connections. To replace it, one removes the retaining screws where the leads are attached in the modulator and removes the tube. It is a little difficult to get at the one lead underneath the tube at the filament transformer. Other than that, it is a straight forward replacement. Rich Kimball Acceletronics Midwest, Inc. On Sunday, November 24, 2002, at 11:58 AM, Hughes, William H. wrote: > Hello all. I have a new 2100EX and while checking out the differences > I > found the DQ'ing thyratron does not appear to be a plug in type. Could > someone assist me in the manner of removing and replacing this should > I ever > need to. My Varian rep could not tell me this procedure. > > Thanks, Bill Hughes > Regional Cancer Center > Erie, Pa. > 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 07:11:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GCTF-0001Mi-00; Mon, 25 Nov 2002 07:11:49 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1E58D1105F1; Mon, 25 Nov 2002 07:01:00 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA05806 for linac-eng-list; Sun, 24 Nov 2002 23:47:08 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (f36.law8.hotmail.com [216.33.241.36]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id XAA05802 for ; Sun, 24 Nov 2002 23:47:06 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 24 Nov 2002 11:47:15 -0800 Received: from 65.29.176.218 by lw8fd.law8.hotmail.msn.com with HTTP; Sun, 24 Nov 2002 19:47:15 GMT X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: WHughes@trcc.org, linac-eng@plato.aristotle.net Subject: Re: Date: Sun, 24 Nov 2002 13:47:15 -0600 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 24 Nov 2002 19:47:15.0249 (UTC) FILETIME=[49FD2210:01C293F2] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [65.29.176.218] From: "ROD WILLIAMS" To: WHughes@trcc.org, linac-eng@plato.aristotle.net Subject: Re: Date: Sun, 24 Nov 2002 13:47:15 -0600 X-OriginalArrivalTime: 24 Nov 2002 19:47:15.0249 (UTC) FILETIME=[49FD2210:01C293F2] Sender: owner-linac-eng@plato.aristotle.net Hi William You have to just remove to remove the two leads one green and yellow. I use a right angle phillips to take the one off of the bypass cap, it is the toughest one to get at. Then I remove the three screws holding the tube in and pull the tube out. ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 414-443-6430 >From: "Hughes, William H." >To: "'linac-eng@plato.aristotle.net'" >Date: Sun, 24 Nov 2002 12:58:00 -0500 > >Hello all. I have a new 2100EX and while checking out the differences I >found the DQ'ing thyratron does not appear to be a plug in type. Could >someone assist me in the manner of removing and replacing this should I >ever >need to. My Varian rep could not tell me this procedure. > >Thanks, Bill Hughes > Regional Cancer Center > Erie, Pa. _________________________________________________________________ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 14:15:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GJ4x-0005UZ-00; Mon, 25 Nov 2002 14:15:11 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 92AE91112F1; Mon, 25 Nov 2002 14:04:08 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA11251 for linac-eng-list; Mon, 25 Nov 2002 06:48:40 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA11247 for ; Mon, 25 Nov 2002 06:48:38 -0600 (CST) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Mon, 25 Nov 2002 08:54:03 -0400 Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: PV error Date: Mon, 25 Nov 2002 08:47:28 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: PV error Date: Mon, 25 Nov 2002 08:47:28 -0400 X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-linac-eng@plato.aristotle.net Hi Group Since my Gen 6 upgrade we have been experiencing PV errors on our 2100c/d. The error occur for patient with or without Portal Imaging. The error reads: PV NOT RESPONDING PLEASE TRY BACK LATER. Able to clear by exiting out of Varis Treatment when return to Varis Treatment all fine. There is no set pattern for when this error occurs. Other relevant information, I have a 2100C/D with 80 leaf MLC & mark II liquid crystal PV. Varis has been recently updated to GEN 6.2, Console still at rel 5.4. The treatment workstation update to a Dell PC at 1.8Ghz with 512RAM. Any suggestions would be appreciated. __________________________________________ Greg MacKinnon, C.E.T. Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George Street Sydney, Nova Scotia, Canada B1P 1P3 tel: (902) 567-8076 fax: (902) 567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 15:23:41 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GK9F-0006Bc-00; Mon, 25 Nov 2002 15:23:41 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4CCB11112F1 for ; Mon, 25 Nov 2002 15:12:39 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPAFCP8WIO9SCDV9@med.uu.nl> for kok@radth.med.uu.nl; Mon, 25 Nov 2002 15:12:27 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPAFCKZFOY9SCP5U@med.uu.nl> for kok@radth.med.uu.nl; Mon, 25 Nov 2002 15:12:04 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA11251 for linac-eng-list; Mon, 25 Nov 2002 06:48:40 -0600 (CST) Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA11247 for ; Mon, 25 Nov 2002 06:48:38 -0600 (CST) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Mon, 25 Nov 2002 08:54:03 -0400 Date: Mon, 25 Nov 2002 08:47:28 -0400 From: Greg MacKinnon Subject: PV error Sender: owner-linac-eng@plato.aristotle.net To: LinacEng Reply-To: mackinnongreg@cbdha.nshealth.ca Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 25 Nov 2002 08:47:28 -0400 From: Greg MacKinnon Subject: PV error Sender: owner-linac-eng@plato.aristotle.net To: LinacEng Reply-To: mackinnongreg@cbdha.nshealth.ca X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hi Group Since my Gen 6 upgrade we have been experiencing PV errors on our 2100c/d. The error occur for patient with or without Portal Imaging. The error reads: PV NOT RESPONDING PLEASE TRY BACK LATER. Able to clear by exiting out of Varis Treatment when return to Varis Treatment all fine. There is no set pattern for when this error occurs. Other relevant information, I have a 2100C/D with 80 leaf MLC & mark II liquid crystal PV. Varis has been recently updated to GEN 6.2, Console still at rel 5.4. The treatment workstation update to a Dell PC at 1.8Ghz with 512RAM. Any suggestions would be appreciated. __________________________________________ Greg MacKinnon, C.E.T. Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George Street Sydney, Nova Scotia, Canada B1P 1P3 tel: (902) 567-8076 fax: (902) 567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 15:35:45 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GKKv-0006Rz-00; Mon, 25 Nov 2002 15:35:45 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 481B71112F1; Mon, 25 Nov 2002 15:24:40 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA12700 for linac-eng-list; Mon, 25 Nov 2002 08:13:00 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tc00tecpro00009.ssss.gouv.qc.ca (mail.ssss.gouv.qc.ca [199.243.239.5]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA12696 for ; Mon, 25 Nov 2002 08:12:57 -0600 (CST) From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: MLC To: linac-eng@plato.aristotle.net Date: Mon, 25 Nov 2002 09:12:53 -0500 Message-ID: X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/25/2002 09:11:43 AM MIME-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA12697 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: MLC To: linac-eng@plato.aristotle.net Date: Mon, 25 Nov 2002 09:12:53 -0500 X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/25/2002 09:11:43 AM X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA12697 Sender: owner-linac-eng@plato.aristotle.net Hi ! I am searching informations : 1° from someone that have experiences with MLCs particularly on Siemens machine and Varian machine. Points of interest are : - servicing it ; MTBF ; usage in clinic 2° Compare beam stability , peaking needs ( frequence ) , ? 3° Servicing Linac ( between Primus and Varian linac Clinac 21EX ) ? 4° For those one who works on Primus machine : - How they performs now ? They still have problems like it was in the 1999 and 2000 ? 5° What do you now about new Siemens linac coming : " ONCORE " ? Is it looking like a simple marketing change of the name ( .. Primus ) or it will be a really new machine with important technical modifications ? Thanks to everyone ! Regards ! Jean - Yves Blais tech. en électronique specialisé en radio-oncologie Centre Hospitalier Régional de Rimouski (C.H.R.R.) Rimouski ,Qc G5L 5T1 office :(418) 724 - 8467 fax : (418) 724 - 8247 email : jean.yves.blais.chrr@ssss.gouv.qc. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 16:20:48 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GL2W-0006zL-00; Mon, 25 Nov 2002 16:20:48 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3C11F1112F4; Mon, 25 Nov 2002 16:09:45 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA13434 for linac-eng-list; Mon, 25 Nov 2002 08:51:46 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA13427 for ; Mon, 25 Nov 2002 08:51:44 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id gAPEpAK16601; Mon, 25 Nov 2002 09:51:10 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C7C.005130CC ; Mon, 25 Nov 2002 09:46:49 -0500 X-Lotus-FromDomain: LRCC To: "Hughes, William H." Cc: "'linac-eng@plato.aristotle.net'" Message-ID: <85256C7C.00512F25.00@mail.lrcc.on.ca> Date: Mon, 25 Nov 2002 09:46:43 -0500 Subject: Re: Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Hughes, William H." Cc: "'linac-eng@plato.aristotle.net'" Date: Mon, 25 Nov 2002 09:46:43 -0500 Subject: Re: Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net We don't have an EX machine yet, but our last 4 machines sn 1157, 1158, 1159 and 1376 had a 8503AF DeQ thyratron and it is a glass tube thyratron about the same size as the 8503, but there are 2 wires to connect and a connection to the flange. Not as fast to change as the older 8503B. I don't know why they changed. Randy 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 16:31:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GLCX-000796-00; Mon, 25 Nov 2002 16:31:09 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D7F0B1112F1; Mon, 25 Nov 2002 16:20:06 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA14189 for linac-eng-list; Mon, 25 Nov 2002 09:07:11 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA14185 for ; Mon, 25 Nov 2002 09:07:04 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Mon, 25 Nov 2002 10:12:47 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C562@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Subject: DQ'ing thyratron Date: Mon, 25 Nov 2002 10:12:39 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Subject: DQ'ing thyratron Date: Mon, 25 Nov 2002 10:12:39 -0500 Sender: owner-linac-eng@plato.aristotle.net Thank you to all who responded. I agree with one comment, WHY, WHY did they have to change it. Sounds like a bit of a pain in the butt. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 17:04:01 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GLiL-0007XB-00; Mon, 25 Nov 2002 17:04:01 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7E1D61112F1; Mon, 25 Nov 2002 16:52:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA15146 for linac-eng-list; Mon, 25 Nov 2002 09:38:01 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA15142 for ; Mon, 25 Nov 2002 09:37:59 -0600 (CST) From: Bob.Tonks@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id gAPFbRK28350; Mon, 25 Nov 2002 10:37:27 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C7C.00556D00 ; Mon, 25 Nov 2002 10:33:04 -0500 X-Lotus-FromDomain: LRCC To: "Hughes, William H." , linac-eng@plato.aristotle.net Message-ID: <85256C7C.00556C03.00@mail.lrcc.on.ca> Date: Mon, 25 Nov 2002 10:33:01 -0500 Subject: Re: DQ'ing thyratron Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Bob.Tonks@lrcc.on.ca X-Lotus-FromDomain: LRCC To: "Hughes, William H." , linac-eng@plato.aristotle.net Date: Mon, 25 Nov 2002 10:33:01 -0500 Subject: Re: DQ'ing thyratron Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net I beleive they changed it because it was common for the old 8503 to have the glass break from the base when you tried to pull it from the socket. This tube does take a bit longer to replace but it does not fail that often. Bob Tonks London Regional Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 17:39:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GMH7-0007mA-00; Mon, 25 Nov 2002 17:39:57 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id C50D21112F1 for ; Mon, 25 Nov 2002 17:28:54 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPAK54O85S9SE4J2@med.uu.nl> for kok@radth.med.uu.nl; Mon, 25 Nov 2002 17:28:49 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPAK51SXSC9SE6H7@med.uu.nl> for kok@radth.med.uu.nl; Mon, 25 Nov 2002 17:28:45 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA14189 for linac-eng-list; Mon, 25 Nov 2002 09:07:11 -0600 (CST) Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA14185 for ; Mon, 25 Nov 2002 09:07:04 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Mon, 25 Nov 2002 10:12:47 -0500 Date: Mon, 25 Nov 2002 10:12:39 -0500 From: "Hughes, William H." Subject: DQ'ing thyratron Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" Message-id: <1082075133C0D511AAC8000255F0072924C562@beatrice.trcc.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 25 Nov 2002 10:12:39 -0500 From: "Hughes, William H." Subject: DQ'ing thyratron Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Thank you to all who responded. I agree with one comment, WHY, WHY did they have to change it. Sounds like a bit of a pain in the butt. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 19:42:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GOBj-00089q-00; Mon, 25 Nov 2002 19:42:31 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 039731112F2; Mon, 25 Nov 2002 19:31:25 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA23252 for linac-eng-list; Mon, 25 Nov 2002 12:03:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep01.biz.rr.com (fep01.biz.rr.com [24.30.200.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA23248 for ; Mon, 25 Nov 2002 12:03:16 -0600 (CST) Received: from pent4 ([24.174.72.124]) by fep01.biz.rr.com with ESMTP id <20021125180315.LVLP24101.fep01.biz.rr.com@pent4> for ; Mon, 25 Nov 2002 13:03:15 -0500 From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Mon, 25 Nov 2002 12:03:03 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: DQ'ing thyratron Reply-To: acceltek@acceltekservice.com Message-ID: <3DE21177.11932.28D13E@localhost> In-reply-to: <85256C7C.00556C03.00@mail.lrcc.on.ca> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: linac-eng@plato.aristotle.net Date: Mon, 25 Nov 2002 12:03:03 -0600 Subject: Re: DQ'ing thyratron Reply-To: acceltek@acceltekservice.com In-reply-to: <85256C7C.00556C03.00@mail.lrcc.on.ca> Sender: owner-linac-eng@plato.aristotle.net > > > I beleive they changed it because it was common for the old 8503 to have the > glass break from the base when you tried to pull it from the socket. This tube > does take a bit longer to replace but it does not fail that often. > > Bob Tonks > London Regional Cancer Centre > > Yep, those suckers seem to last forever anyway, at least that has been my experience on the Siemens machines. The main cause of failure seemed to be removing a suspected bad one and having the base come loose, then finding it wasn't the problem to begin with. Thomas W. McCausland AccelTek Inc. 281-652-0059 888-619-8811 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Nov 25 20:07:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GOZr-0008Bc-00; Mon, 25 Nov 2002 20:07:27 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 208E91112F2; Mon, 25 Nov 2002 19:56:20 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA24249 for linac-eng-list; Mon, 25 Nov 2002 12:38:36 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.orcc.on.ca (209-87-236-146.storm.ca [209.87.236.146]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA24244 for ; Mon, 25 Nov 2002 12:38:34 -0600 (CST) Received: from orcc_exchange.orcc.on.ca by mail.orcc.on.ca via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 25 Nov 2002 18:31:17 UT Received: (private information removed) Message-ID: <9EDDDF66FBD7D611B79E000255AC29BE17FA54@orcc_exchange.cancercare.on.ca> From: "Ogrodowczyk, Mariusz" To: "'linac-eng@plato.aristotle.net'" Subject: RE: MLC Date: Mon, 25 Nov 2002 13:39:28 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA24245 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Ogrodowczyk, Mariusz" To: "'linac-eng@plato.aristotle.net'" Subject: RE: MLC Date: Mon, 25 Nov 2002 13:39:28 -0500 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA24245 Sender: owner-linac-eng@plato.aristotle.net Hi Jean We'll be glad to help you with the Siemens' MLC, if you have any specific questions. We have 4 D2 models with MLC and version 6.5 firmware. Mariusz Ogrodowczyk Ottawa Regional Cancer Centre Tel 613-737-7700 ext 6233 -----Original Message----- From: jean.yves.blais.chrr@ssss.gouv.qc.ca [mailto:jean.yves.blais.chrr@ssss.gouv.qc.ca] Sent: November 25, 2002 9:13 AM To: linac-eng@plato.aristotle.net Subject: MLC Hi ! I am searching informations : 1° from someone that have experiences with MLCs particularly on Siemens machine and Varian machine. Points of interest are : - servicing it ; MTBF ; usage in clinic 2° Compare beam stability , peaking needs ( frequence ) , ? 3° Servicing Linac ( between Primus and Varian linac Clinac 21EX ) ? 4° For those one who works on Primus machine : - How they performs now ? They still have problems like it was in the 1999 and 2000 ? 5° What do you now about new Siemens linac coming : " ONCORE " ? Is it looking like a simple marketing change of the name ( .. Primus ) or it will be a really new machine with important technical modifications ? Thanks to everyone ! Regards ! Jean - Yves Blais tech. en électronique specialisé en radio-oncologie Centre Hospitalier Régional de Rimouski (C.H.R.R.) Rimouski ,Qc G5L 5T1 office :(418) 724 - 8467 fax : (418) 724 - 8247 email : jean.yves.blais.chrr@ssss.gouv.qc. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 04:30:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GWR8-0000Bw-00; Tue, 26 Nov 2002 04:30:58 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id DE2CE1112F1; Tue, 26 Nov 2002 04:19:39 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA04633 for linac-eng-list; Mon, 25 Nov 2002 20:57:57 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dns2.stvincents.com.au (dns2.stvincents.COM.AU [203.20.160.18]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA04629 for ; Mon, 25 Nov 2002 20:57:54 -0600 (CST) Received: from svhsnts02.stvincents.com.au (203.20.160.11) by dns2.stvincents.com.au (MX V5.3 Vn7f) with ESMTP for ; Tue, 26 Nov 2002 13:57:51 +1000 Received: from stvincents.com.au (svl004.stvincents.COM.AU) by svhsnts02.stvincents.com.au (Content Technologies SMTPRS 4.2.1) with SMTP id for ; Tue, 26 Nov 2002 13:57:50 +1100 Received: from svhsnts02 ([10.56.2.157]) by stvincents.com.au ; Tue, 26 Nov 2002 13:57:48 +1100 X-WebMail-UserID: jmorales Date: Tue, 26 Nov 2002 13:57:48 +1100 From: Johnny Morales To: linac-eng@plato.aristotle.net X-EXP32-SerialNo: 00003401, 00003601, 00003699 Subject: Interlock error 30. Modulator Incomplete Message-ID: <3DA88A7F@svhsnts02> MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Mailer: WebMail (Hydra) SMTP v3.61 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-WebMail-UserID: jmorales Date: Tue, 26 Nov 2002 13:57:48 +1100 From: Johnny Morales To: linac-eng@plato.aristotle.net X-EXP32-SerialNo: 00003401, 00003601, 00003699 Subject: Interlock error 30. Modulator Incomplete Sender: owner-linac-eng@plato.aristotle.net Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 08:37:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GaHl-0000tY-00; Tue, 26 Nov 2002 08:37:33 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1956F1112F2; Tue, 26 Nov 2002 08:26:08 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA07366 for linac-eng-list; Tue, 26 Nov 2002 01:12:25 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from GWMIME.AAA.DK (amt-gwia.aaa.dk [194.192.32.20]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id BAA07361 for ; Tue, 26 Nov 2002 01:12:22 -0600 (CST) Received: from arhusamt-Message_Server by GWMIME.AAA.DK with Novell_GroupWise; Tue, 26 Nov 2002 08:11:36 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Tue, 26 Nov 2002 08:11:28 +0100 From: "Ole G. Nielsen" To: "<" , Subject: Vedr.: Interlock error 30. Modulator Incomplete Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 26 Nov 2002 08:11:28 +0100 From: "Ole G. Nielsen" To: "<" , Subject: Vedr.: Interlock error 30. Modulator Incomplete Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Hi Johny, Interlock 30 : "Modulator incomplete " is a fairly common interlock on our 2 PRIMUS KD2 - as it is on all other machines. That interlock covers a lot of different things. You need to do much more investigations before anyone could do some qualified guessing of what is wrong with your machine. Some UNQUALIFIED wild shots could be faults in the area of "Charge Drawer" or "K2 chassis". Good luck ole Ole G. Nielsen Dept. of Medical Physics Aarhus University Hospital Phone +45 8949 2487 Fax +45 8949 2590 >>> Johnny Morales 26-11-02 03:57 >>> Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 15:32:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Gglb-0007Oc-00; Tue, 26 Nov 2002 15:32:47 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BA4811112F5; Tue, 26 Nov 2002 15:21:09 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA11981 for linac-eng-list; Tue, 26 Nov 2002 08:05:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA11977 for ; Tue, 26 Nov 2002 08:05:52 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Tue, 26 Nov 2002 09:11:36 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C565@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Tue, 26 Nov 2002 09:11:33 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Tue, 26 Nov 2002 09:11:33 -0500 Sender: owner-linac-eng@plato.aristotle.net Hello all, Would anyone out there possibly have the information for setting up or adjusting the motor drive module for the gantry and couch vertical located on the catc-all panel in the stand. We have 2 2100EX and a 2100C. Thanks in advance for your help. Bill Hughes Regional Cancer Center Erie, Pa. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 16:51:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GhzR-000854-00; Tue, 26 Nov 2002 16:51:09 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BFD151112F2; Tue, 26 Nov 2002 16:39:33 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13160 for linac-eng-list; Tue, 26 Nov 2002 09:23:27 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA13155 for ; Tue, 26 Nov 2002 09:23:25 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2655.55) id ; Tue, 26 Nov 2002 10:22:54 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F0B5@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Ole G. Nielsen'" , "<" , jmorales@stvincents.com.au Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Date: Tue, 26 Nov 2002 10:22:44 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Ole G. Nielsen'" , "<" , jmorales@stvincents.com.au Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Date: Tue, 26 Nov 2002 10:22:44 -0500 Sender: owner-linac-eng@plato.aristotle.net Look at the yellow LEDs to see which one is causing modulator incomplete. Door and SF6 have been my most recent ones. -----Original Message----- From: Ole G. Nielsen [mailto:ole@akh.aaa.dk] Sent: Tuesday, November 26, 2002 2:11 AM To: <; jmorales@stvincents.com.au Subject: Vedr.: Interlock error 30. Modulator Incomplete Hi Johny, Interlock 30 : "Modulator incomplete " is a fairly common interlock on our 2 PRIMUS KD2 - as it is on all other machines. That interlock covers a lot of different things. You need to do much more investigations before anyone could do some qualified guessing of what is wrong with your machine. Some UNQUALIFIED wild shots could be faults in the area of "Charge Drawer" or "K2 chassis". Good luck ole Ole G. Nielsen Dept. of Medical Physics Aarhus University Hospital Phone +45 8949 2487 Fax +45 8949 2590 >>> Johnny Morales 26-11-02 03:57 >>> Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 17:01:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Gi9o-0008AN-00; Tue, 26 Nov 2002 17:01:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 409B71112F2; Tue, 26 Nov 2002 16:50:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13280 for linac-eng-list; Tue, 26 Nov 2002 09:28:34 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI2.Partners.org (phsexchici2.partners.org [170.223.254.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA13276 for ; Tue, 26 Nov 2002 09:28:33 -0600 (CST) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2655.55) id ; Tue, 26 Nov 2002 10:28:02 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F0B7@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Bob.Tonks@lrcc.on.ca'" , "Hughes, William H." , linac-eng@plato.aristotle.net Subject: RE: DQ'ing thyratron Date: Tue, 26 Nov 2002 10:27:58 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Bob.Tonks@lrcc.on.ca'" , "Hughes, William H." , linac-eng@plato.aristotle.net Subject: RE: DQ'ing thyratron Date: Tue, 26 Nov 2002 10:27:58 -0500 Sender: owner-linac-eng@plato.aristotle.net The type with leads does seem to last longer. And the glass coming loose was common. I have also had a run of bad sockets this year on very old machines, both DeQ and Main. If the socket gets hot, the spring contacts loose their grip. Me too. Jerry -----Original Message----- From: Bob.Tonks@lrcc.on.ca [mailto:Bob.Tonks@lrcc.on.ca] Sent: Monday, November 25, 2002 10:33 AM To: Hughes, William H.; linac-eng@plato.aristotle.net Subject: Re: DQ'ing thyratron I beleive they changed it because it was common for the old 8503 to have the glass break from the base when you tried to pull it from the socket. This tube does take a bit longer to replace but it does not fail that often. Bob Tonks London Regional Cancer Centre 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 18:17:49 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GjLJ-0000E5-00; Tue, 26 Nov 2002 18:17:49 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id A7B5A1112F2 for ; Tue, 26 Nov 2002 18:06:11 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPBZOBNU6O9S6FYR@med.uu.nl> for kok@radth.med.uu.nl; Tue, 26 Nov 2002 18:04:58 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPBZO68H7C9SG6RF@med.uu.nl> for kok@radth.med.uu.nl; Tue, 26 Nov 2002 18:04:51 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13160 for linac-eng-list; Tue, 26 Nov 2002 09:23:27 -0600 (CST) Received: from PHSEXCHICO2.Partners.org (phsexchico2.partners.org [170.223.254.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA13155 for ; Tue, 26 Nov 2002 09:23:25 -0600 (CST) Received: by phsexchico2.partners.org with Internet Mail Service (5.5.2655.55) id ; Tue, 26 Nov 2002 10:22:54 -0500 Date: Tue, 26 Nov 2002 10:22:44 -0500 From: "Maddox, Buford J" Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Sender: owner-linac-eng@plato.aristotle.net To: "'Ole G. Nielsen'" , "<" , jmorales@stvincents.com.au Message-id: <36298D09ED1AD311B4DC0008C7F4D4E10A30F0B5@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 26 Nov 2002 10:22:44 -0500 From: "Maddox, Buford J" Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Sender: owner-linac-eng@plato.aristotle.net To: "'Ole G. Nielsen'" , "<" , jmorales@stvincents.com.au X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Look at the yellow LEDs to see which one is causing modulator incomplete. Door and SF6 have been my most recent ones. -----Original Message----- From: Ole G. Nielsen [mailto:ole@akh.aaa.dk] Sent: Tuesday, November 26, 2002 2:11 AM To: <; jmorales@stvincents.com.au Subject: Vedr.: Interlock error 30. Modulator Incomplete Hi Johny, Interlock 30 : "Modulator incomplete " is a fairly common interlock on our 2 PRIMUS KD2 - as it is on all other machines. That interlock covers a lot of different things. You need to do much more investigations before anyone could do some qualified guessing of what is wrong with your machine. Some UNQUALIFIED wild shots could be faults in the area of "Charge Drawer" or "K2 chassis". Good luck ole Ole G. Nielsen Dept. of Medical Physics Aarhus University Hospital Phone +45 8949 2487 Fax +45 8949 2590 >>> Johnny Morales 26-11-02 03:57 >>> Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 18:47:57 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GjoT-0000HT-00; Tue, 26 Nov 2002 18:47:57 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B72681112F2; Tue, 26 Nov 2002 18:36:18 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA15893 for linac-eng-list; Tue, 26 Nov 2002 11:21:46 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [208.130.187.254] (gatekeeper.mercycare.org [208.130.187.254]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA15889 for ; Tue, 26 Nov 2002 11:21:45 -0600 (CST) Received: from mercy-e1.mercycare.org by [208.130.187.254] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; Tue, 26 Nov 2002 11:21:45 -0600 Received: by Mercy-E1.mercycare.org with Internet Mail Service (5.5.2653.19) id ; Tue, 26 Nov 2002 11:20:44 -0600 Message-ID: From: Tyson Long To: "List Server (E-mail 2)" Subject: vacuum pump Date: Tue, 26 Nov 2002 11:20:44 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long To: "List Server (E-mail 2)" Subject: vacuum pump Date: Tue, 26 Nov 2002 11:20:44 -0600 Sender: owner-linac-eng@plato.aristotle.net I have a Varian SD-90 vacuum pump that is in good condition and works great. I also have a CCX from a CL 1800, worked when removed. Had machine interfaced with Varis 6.0. Email me if interested. Tyson Long Bio-Med Equipment Specialist Mercy Medical Center Cedar Rapids, Iowa E-Mail tlong@mercycare.org 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 20:50:11 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Glil-0000Tm-00; Tue, 26 Nov 2002 20:50:11 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4BE551112F2; Tue, 26 Nov 2002 20:38:29 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA17783 for linac-eng-list; Tue, 26 Nov 2002 13:14:23 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA17779 for ; Tue, 26 Nov 2002 13:14:21 -0600 (CST) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA3A99 for ; Tue, 26 Nov 2002 13:11:19 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Tue, 26 Nov 2002 13:13:49 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Tue, 26 Nov 2002 13:13:43 -0600 From: "Stephen Jordan" To: Subject: EDW qa procedures Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 26 Nov 2002 13:13:43 -0600 From: "Stephen Jordan" To: Subject: EDW qa procedures Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net We are in need of information on what Physics / Therapists QA procedures are performed on a daily, monthly, and annual for clinacs using Enhanced Dynamic Wedge. Any help would be greatly appreciated! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 21:29:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GmKo-0000XG-00; Tue, 26 Nov 2002 21:29:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E24121112F2; Tue, 26 Nov 2002 21:17:47 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA18753 for linac-eng-list; Tue, 26 Nov 2002 14:01:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA18749 for ; Tue, 26 Nov 2002 14:01:38 -0600 (CST) From: mrbarfie@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA19695; Tue, 26 Nov 2002 13:58:01 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C7D.006D52FB ; Tue, 26 Nov 2002 13:54:06 -0600 X-Lotus-FromDomain: MDACC To: Johnny Morales Cc: linac-eng@plato.aristotle.net Message-ID: <86256C7D.006D521C.00@utm-notesob1.mdacc.tmc.edu> Date: Tue, 26 Nov 2002 13:54:02 -0600 Subject: Re: Interlock error 30. Modulator Incomplete Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: mrbarfie@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: Johnny Morales Cc: linac-eng@plato.aristotle.net Date: Tue, 26 Nov 2002 13:54:02 -0600 Subject: Re: Interlock error 30. Modulator Incomplete Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Mr. Morales, Modulator Incomplete encompasses a number of interlocks which are indicated by lights on an electronics drawer which is located on the top left inside the door on the left hand side of the machine as you are facing the gantry. These interlocks include, but are not limited to, things like SF6 gas pressure and Oil Temp, as well as much more serious things. The interlocks are in a series chain, so the first light that is off in the chain is the source of your interlock. It could be serious, but it is probably something that can be corrected easily. M. Barfield MD Anderson Cancer Center 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Nov 26 22:01:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Gmpy-0000aX-00; Tue, 26 Nov 2002 22:01:42 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 536821112F3; Tue, 26 Nov 2002 21:49:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA19441 for linac-eng-list; Tue, 26 Nov 2002 14:27:56 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.63]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA19437 for ; Tue, 26 Nov 2002 14:27:54 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 26 Nov 2002 15:27:01 -0500 Message-ID: From: "Rozenblat, Alex" To: "'Ole G. Nielsen'" , "<" , jmorales@stvincents.com.au Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Date: Tue, 26 Nov 2002 15:27:01 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'Ole G. Nielsen'" , "<" , jmorales@stvincents.com.au Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Date: Tue, 26 Nov 2002 15:27:01 -0500 Sender: owner-linac-eng@plato.aristotle.net Hi, Johnny I assume that you don't see any LED on K2 chassis being extinguished. The very last interlock in K2 chassis chain is "Facility water". This interlock is not-latchable, meaning if a flow through one of three checked lines (I can specify later)is close to border line this interlock will trip and then re-establish itself. If it happens persistently - it will eventually cause "Modulator incomplete" and when you walk to check K2 chassis LEDs - all of them will be fine. One more thing - The very last interlocks in Hardware Interlock PCBs are related to MLC problems (check schematics). If they (Field position and something else) are intermittent - effect will be similar. Good luck, Alex Rozenblat TSRCC, Toronto PS. Please, be more specific next time. PPS. You have Andrew Frolov in Australia who knows these linacs very well. -----Original Message----- From: Ole G. Nielsen [mailto:ole@akh.aaa.dk] Sent: 26 November 2002 02:11 To: <; jmorales@stvincents.com.au Subject: Vedr.: Interlock error 30. Modulator Incomplete Hi Johny, Interlock 30 : "Modulator incomplete " is a fairly common interlock on our 2 PRIMUS KD2 - as it is on all other machines. That interlock covers a lot of different things. You need to do much more investigations before anyone could do some qualified guessing of what is wrong with your machine. Some UNQUALIFIED wild shots could be faults in the area of "Charge Drawer" or "K2 chassis". Good luck ole Ole G. Nielsen Dept. of Medical Physics Aarhus University Hospital Phone +45 8949 2487 Fax +45 8949 2590 >>> Johnny Morales 26-11-02 03:57 >>> Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 08:35:15 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Gwj5-0001ft-00; Wed, 27 Nov 2002 08:35:15 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 84FB51112F2; Wed, 27 Nov 2002 08:23:16 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id BAA02123 for linac-eng-list; Wed, 27 Nov 2002 01:03:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from xmxpita.excite.com (nn4.excitenetwork.com [207.159.120.58]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA02119 for ; Wed, 27 Nov 2002 01:03:51 -0600 (CST) Received: by xmxpita.excite.com (Postfix, from userid 110) id 62B4E29A25; Wed, 27 Nov 2002 02:03:21 -0500 (EST) To: Alex.Rozenblat@tsrcc.on.ca, ole@akh.aaa.dk, linac-eng@plato.aristotle.net, jmorales@stvincents.com.au Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Received: from [144.137.125.32] by xprdmailfe23.nwk.excite.com via HTTP; Wed, 27 Nov 2002 02:03:21 EST X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: ID = 607dbf8e96af44dc1c1bf63a70d2e093 Reply-To: radeng@excite.com From: "PLAY2KILL" MIME-Version: 1.0 X-Sender: radeng@excite.com X-Mailer: PHP Content-Type: multipart/alternative; boundary="EXCITEBOUNDARY_000__8e95f017b36bfefb4020804d03a4b0d4"; Content-Transfer-Encoding: 7bit Message-Id: <20021127070321.62B4E29A25@xmxpita.excite.com> Date: Wed, 27 Nov 2002 02:03:21 -0500 (EST) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f To: Alex.Rozenblat@tsrcc.on.ca, ole@akh.aaa.dk, linac-eng@plato.aristotle.net, jmorales@stvincents.com.au Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: ID = 607dbf8e96af44dc1c1bf63a70d2e093 Reply-To: radeng@excite.com From: "PLAY2KILL" X-Sender: radeng@excite.com Date: Wed, 27 Nov 2002 02:03:21 -0500 (EST) Sender: owner-linac-eng@plato.aristotle.net --EXCITEBOUNDARY_000__8e95f017b36bfefb4020804d03a4b0d4 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Johnny, As has been very clearly pointed out to you, "Modulator Incomplete" is a extremely broad interlock on the Primus linacs, much more though research into the problem needs to be done by yourself before firing off e-mails requesting help on such a broad topic as this. Have you even bothered to check the LED's on the K2 chassis to see which one's are off and which are on? If they are off it means that the interlock has tripped. Also which energies is this occuring on? All of them??? Have you tried beaming in every energy to see if the problem is isolated to only 1. From my experience most mod incomplete's are either due to a lack of sufficient SF6 preasure in the transmission guide or due to a problem with the facility water, this can either be due to temperature or more specifically the flow rate/preasure of the incomming water. Charge draw and K2 chassis can also cause this problem but it is rare in my experience. --- On Tue 11/26, Rozenblat, Alex < Alex.Rozenblat@t! srcc.on.ca > wrote:From: Rozenblat, Alex [mailto: Alex.Rozenblat@tsrcc.on.ca]To: ole@akh.aaa.dk, linac-eng@plato.aristotle.net, jmorales@stvincents.com.auDate: Tue, 26 Nov 2002 15:27:01 -0500Subject: RE: Vedr.: Interlock error 30. Modulator IncompleteHi, JohnnyI assume that you don't see any LED on K2 chassis being extinguished.The very last interlock in K2 chassis chain is "Facility water". Thisinterlock is not-latchable, meaning if a flow through one of three checkedlines (I can specify later)is close to border line this interlock will tripand then re-establish itself. If it happens persistently - it willeventually cause "Modulator incomplete" and when you walk to check K2chassis LEDs - all of them will be fine.One more thing - The very last interlocks in Hardware Interlock PCBs arerelated to MLC problems (check schematics). If they (Field position andsomething else) are intermittent - effect will be similar.Good luck,Alex RozenblatTSRCC, TorontoPS. Please, be more specif! ic next time.PPS. You have Andrew Frolov in Australia who knows these linacs very well.-----Original Message-----From: Ole G. Nielsen [mailto:ole@akh.aaa.dk]Sent: 26 November 2002 02:11To: <; jmorales@stvincents.com.auSubject: Vedr.: Interlock error 30. Modulator IncompleteHi Johny,Interlock 30 : "Modulator incomplete " is a fairly common interlockon our 2 PRIMUS KD2 - as it is on all other machines. That interlockcovers a lot of different things. You need to do much moreinvestigations before anyone could do some qualified guessing of whatis wrong with your machine.Some UNQUALIFIED wild shots could be faults in the area of "ChargeDrawer" or "K2 chassis".Good luckoleOle G. NielsenDept. of Medical PhysicsAarhus University HospitalPhone +45 8949 2487Fax +45 8949 2590>>> Johnny Morales 26-11-02 03:57 >>>Hi to all,We are having a continual problem with our new Siemens Primus KP2giving interlock error "30. Modulator Incomplete".I wonder if any of you has had sim! ilar problems with these klystronmachines?, and if any one has, Can you please let us know what the causes wereand possible solutions?. We would greatly appreciate your answers.Many thanks,Johnny MoralesMedical PhysicistRadiation OncologyLevel 10, O'Brien Building,St. Vincent's Hospital, SydneyVictoria Street DarlinghurstAustraliaPh. +61 2 8382 2456 Fax +61 2 8382 3429**********************************************************************This email and any files transmitted with it are confidential andintended solely for the use of the individual or entity to whom theyare addressed. If you have received this email in error pleasenotifythe system manager.This footnote also confirms that this email message has beenvirus scanned and although no viruses were detected by the system,St Vincent's Hospital accepts no liability for any consequentialdamage resulting from email containing any computer viruses.********************************************************************** _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web! --EXCITEBOUNDARY_000__8e95f017b36bfefb4020804d03a4b0d4 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: 7bit
    Johnny,

    As has been very clearly pointed out to you, "Modulator Incomplete" is a extremely broad interlock on the Primus linacs, much more though research into the problem needs to be done by yourself before firing off e-mails requesting help on such a broad topic as this. Have you even bothered to check the LED's on the K2 chassis to see which one's are off and which are on? If they are off it means that the interlock has tripped.

    Also which energies is this occuring on? All of them??? Have you tried beaming in every energy to see if the problem is isolated to only 1.

    From my experience most mod incomplete's are either due to a lack of sufficient SF6 preasure in the transmission guide or due to a problem with the facility water, this can either be due to temperature or more specifically the flow rate/preasure of the incomming w! ater.

    Charge draw and K2 chassis can also cause this problem but it is rare in my experience.







    --- On Tue 11/26, Rozenblat, Alex < Alex.Rozenblat@tsrcc.on.ca > wrote:

    From: Rozenblat, Alex [mailto: Alex.Rozenblat@tsrcc.on.ca]
    To: ole@akh.aaa.dk, linac-eng@plato.aristotle.net, jmorales@stvincents.com.au
    Date: Tue, 26 Nov 2002 15:27:01 -0500
    Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete

    Hi, JohnnyI assume that you don't see any LED on K2 chassis being extinguished.The very last interlock in K2 chassis chain is "Facility water". Thisinterlock is not-latchable, meaning if a flow through one of three checkedlines (I can specify later)is close to border line this interlock will tripand then re-establish itself. If it happens persistently - it willeventually cause "Modulator incomplete" an! d when you walk to check K2chassis LEDs - all of them will be fine.One more thing - The very last interlocks in Hardware Interlock PCBs arerelated to MLC problems (check schematics). If they (Field position andsomething else) are intermittent - effect will be similar.Good luck,Alex RozenblatTSRCC, TorontoPS. Please, be more specific next time.PPS. You have Andrew Frolov in Australia who knows these linacs very well.-----Original Message-----From: Ole G. Nielsen [mailto:ole@akh.aaa.dk]Sent: 26 November 2002 02:11To: <; jmorales@stvincents.com.auSubject: Vedr.: Interlock error 30. Modulator IncompleteHi Johny,Interlock 30 : "Modulator incomplete " is a fairly common interlockon our 2 PRIMUS KD2 - as it is on all other machines. That interlockcovers a lot of different things. You need to do much moreinvestigations before anyone could do some qualified guessing of whatis wrong with your machine.Some UNQUALIFIED wild shots could be faults in the area of "ChargeDrawer" or "K2 cha! ssis".Good luckoleOle G. NielsenDept. of Medical PhysicsAarhus University HospitalPhone +45 8949 2487Fax +45 8949 2590>>> Johnny Morales 26-11-02 03:57 >>>Hi to all,We are having a continual problem with our new Siemens Primus KP2giving interlock error "30. Modulator Incomplete".I wonder if any of you has had similar problems with these klystronmachines?, and if any one has, Can you please let us know what the causes wereand possible solutions?. We would greatly appreciate your answers.Many thanks,Johnny MoralesMedical PhysicistRadiation OncologyLevel 10, O'Brien Building,St. Vincent's Hospital, SydneyVictoria Street DarlinghurstAustraliaPh. +61 2 8382 2456 Fax +61 2 8382 3429**********************************************************************This email and any files transmitted with it are confidential andintended solely for the use of the individual or entity to whom theyare addressed. If you have received this email in error p! leasenotifythe system manager.This footnote also confirms that this email message has beenvirus scanned and although no viruses were detected by the system,St Vincent's Hospital accepts no liability for any consequentialdamage resulting from email containing any computer viruses.**********************************************************************

    Join Excite! - http://www.excite.com
    The most personalized portal on the Web!     --EXCITEBOUNDARY_000__8e95f017b36bfefb4020804d03a4b0d4-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 11:15:42 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18GzEM-0003lD-00; Wed, 27 Nov 2002 11:15:42 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id F3A251112F2 for ; Wed, 27 Nov 2002 11:03:41 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPCWIT7GWG9S9BI6@med.uu.nl> for kok@radth.med.uu.nl; Wed, 27 Nov 2002 10:49:27 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPCVV2TBT69SEYKI@med.uu.nl> for kok@radth.med.uu.nl; Wed, 27 Nov 2002 09:26:40 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA02170 for linac-eng-list; Wed, 27 Nov 2002 01:09:31 -0600 (CST) Received: from xmxpita.excite.com (nn4.excitenetwork.com [207.159.120.58]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA02166 for ; Wed, 27 Nov 2002 01:09:30 -0600 (CST) Received: by xmxpita.excite.com (Postfix, from userid 110) id D248429A25; Wed, 27 Nov 2002 02:08:59 -0500 (EST) Received: from [144.137.125.32] by xprdmailfe23.nwk.excite.com via HTTP; Wed, 27 Nov 2002 02:08:59 -0500 (EST) Date: Wed, 27 Nov 2002 02:08:59 -0500 (EST) From: PLAY2KILL Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Sender: owner-linac-eng@plato.aristotle.net X-Sender: radeng@excite.com To: linac-eng@plato.aristotle.net Reply-To: radeng@excite.com Message-id: <20021127070859.D248429A25@xmxpita.excite.com> MIME-version: 1.0 X-Mailer: PHP Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_/9gmLVv8XrNELzaAlCpgeg)" Importance: High X-Priority: 1 Precedence: bulk X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: ID = 607dbf8e96af44dc1c1bf63a70d2e093 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 27 Nov 2002 02:08:59 -0500 (EST) From: PLAY2KILL Subject: RE: Vedr.: Interlock error 30. Modulator Incomplete Sender: owner-linac-eng@plato.aristotle.net X-Sender: radeng@excite.com To: linac-eng@plato.aristotle.net Reply-To: radeng@excite.com Importance: High X-Priority: 1 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: ID = 607dbf8e96af44dc1c1bf63a70d2e093 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f --Boundary_(ID_/9gmLVv8XrNELzaAlCpgeg) Content-type: text/plain; charset="us-ascii" Content-transfer-encoding: 7bit Johnny, As has been very clearly pointed out to you, "Modulator Incomplete" is a extremely broad interlock on the Primus linacs, much more though research into the problem needs to be done by yourself before firing off e-mails requesting help on such a broad topic as this. Have you even bothered to check the LED's on the K2 chassis to see which one's are off and which are on? If they are off it means that the interlock has tripped. Also which energies is this occuring on? All of them??? Have you tried beaming in every energy to see if the problem is isolated to only 1. From my experience most mod incomplete's are either due to a lack of sufficient SF6 preasure in the transmission guide or due to a problem with the facility water, this can either be due to temperature or more specifically the flow rate/preasure of the incomming water. Charge draw and K2 chassis can also cause this problem but it is rare in my experience. _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web! --Boundary_(ID_/9gmLVv8XrNELzaAlCpgeg) Content-type: text/html; charset="us-ascii" Content-transfer-encoding: 7bit


    Johnny,

    As has been very clearly pointed out to you, "Modulator Incomplete" is a extremely broad interlock on the Primus linacs, much more though research into the problem needs to be done by yourself before firing off e-mails requesting help on such a broad topic as this.

    Have you even bothered to check the LED's on the K2 chassis to see which one's are off and which are on? If they are off it means that the interlock has tripped.

    Also which energies is this occuring on? All of them??? Have you tried beaming in every energy to see if the problem is isolated to only 1.

    From my experience most mod incomplete's are either due to a lack of sufficient SF6 preasure in the transmission guide or due to a problem with the facility water, this can either be due to temperature or more specifically the flow rate/preasure of! the incomming water.

    Charge draw and K2 chassis can also cause this problem but it is rare in my experience.





    Join Excite! - http://www.excite.com
    The most personalized portal on the Web!     --Boundary_(ID_/9gmLVv8XrNELzaAlCpgeg)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 16:14:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18H3tG-0007r4-00; Wed, 27 Nov 2002 16:14:14 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6BAE91112F2; Wed, 27 Nov 2002 16:02:05 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA08421 for linac-eng-list; Wed, 27 Nov 2002 08:47:11 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA08416 for ; Wed, 27 Nov 2002 08:47:09 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Wed, 27 Nov 2002 10:42:51 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 27 Nov 2002 10:42:45 -0400 From: "Scott Purcell" To: Subject: Delaying Gun Pulses Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA08418 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 27 Nov 2002 10:42:45 -0400 From: "Scott Purcell" To: Subject: Delaying Gun Pulses Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA08418 Sender: owner-linac-eng@plato.aristotle.net Hi to all, We have just upgraded one of our Varian machines (2100C/D sn 1025) to have dynamic capabilities. What I don't know is how the delay of the gun pulses is done to shut the beam off while the MLC and or jaws move into the next position. Any information that could be provided would be greatly appreciated. Thanks in advance Scott Purcell Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada Email scott.purcell@cdha.nshealth.ca Phone: 902-473-2563 Fax: 902-473-6120 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 18:33:53 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18H64P-0000Fm-00; Wed, 27 Nov 2002 18:33:53 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2F62B1112F2; Wed, 27 Nov 2002 18:21:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA21276 for linac-eng-list; Wed, 27 Nov 2002 11:00:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tc00tecpro00009.ssss.gouv.qc.ca (mail.ssss.gouv.qc.ca [199.243.239.5]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA21272 for ; Wed, 27 Nov 2002 11:00:40 -0600 (CST) From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: collimator bearing To: linac-eng@plato.aristotle.net Date: Wed, 27 Nov 2002 12:00:34 -0500 Message-ID: X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/27/2002 11:59:26 AM MIME-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA21273 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: collimator bearing To: linac-eng@plato.aristotle.net Date: Wed, 27 Nov 2002 12:00:34 -0500 X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/27/2002 11:59:26 AM X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA21273 Sender: owner-linac-eng@plato.aristotle.net Hi everybody Let me know your story about ( if there is one ) an identical problem as the one described below Linac type : Siemens KD2 collimator : Standard ( no MLC ) Problem : collimator rotation become difficult and noisy Cause found and validated : the steel balls into the collimator bearing have lost chrome layers and with time those chrome particules finish to aglomerate together and fall in the gantry covers where we find it. This was looking like lead chunck until we analyse the material with 25x magnifier and found that it was ghrome layer. Solution : Clean collimator bearing with LPS degreaser and relube with LPS lubricant We have to relube the collimator about 3 time a year . I know that it is abnormal ( our other linac ( MD2 ) never show that problem ) Our service company know the problem but they ...... sleep on it . So ..... Questions are : Do you have ever seen such problem ? What has been the solution to fix it for good ? Jean - Yves Blais tech. en électronique specialisé en radio-oncologie Centre Hospitalier Régional de Rimouski (C.H.R.R.) Rimouski ,Qc G5L 5T1 office :(418) 724 - 8467 fax : (418) 724 - 8247 email : jean.yves.blais.chrr@ssss.gouv.qc. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 19:43:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18H79f-0000Or-00; Wed, 27 Nov 2002 19:43:23 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2AD4A1112F3; Wed, 27 Nov 2002 19:31:09 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA26236 for linac-eng-list; Wed, 27 Nov 2002 12:17:09 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA26232 for ; Wed, 27 Nov 2002 12:17:08 -0600 (CST) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Wed, 27 Nov 2002 12:17:26 -0600 Received: (from RPC035 [172.24.48.220]) by neried.scf.sk.ca (NAVGW 2.5.2.12) with SMTP id M2002112712233428099 ; Wed, 27 Nov 2002 12:23:34 -0600 From: scot thiesson To: linac-eng@plato.aristotle.net, jean.yves.blais.chrr@ssss.gouv.qc.ca Date: Wed, 27 Nov 2002 12:17:11 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: <4YVRC072HD4WMWTW4W42C99841KFWS.3de50c27@RPC035> Subject: Re: collimator bearing MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: linac-eng@plato.aristotle.net, jean.yves.blais.chrr@ssss.gouv.qc.ca Date: Wed, 27 Nov 2002 12:17:11 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: collimator bearing Sender: owner-linac-eng@plato.aristotle.net My advice is to replace the collimator bearing. They are available from the Kaydon corporation in Muskegon Mich. I have replaced two so far on conventional Siemens linacs with little difficulty. I believe the part number was KG140XPO. You could probably get the same part from Siemens with appropriate mark ups in place. Scot Thiesson A.B.C.C. Regina Sask. Canada 11/27/2002 11:00:34 AM, jean.yves.blais.chrr@ssss.gouv.qc.ca wrote: >Hi everybody >Let me know your story about ( if there is one ) an identical problem as >the one described below > >Linac type : Siemens KD2 >collimator : Standard ( no MLC ) > >Problem : collimator rotation become difficult and noisy > >Cause found and validated : the steel balls into the collimator bearing >have lost chrome layers and with time those chrome particules finish to >aglomerate > together and fall in the gantry >covers where we find it. This was looking like lead chunck until we analyse >the material > with 25x magnifier and found that >it was ghrome layer. > >Solution : Clean collimator bearing with LPS degreaser and relube with LPS >lubricant > >We have to relube the collimator about 3 time a year . I know that it is >abnormal ( our other linac ( MD2 ) never show that problem ) > >Our service company know the problem but they ...... sleep on it . So >..... > > >Questions are : Do you have ever seen such problem ? > > What has been the solution to fix it for good ? > > >Jean - Yves Blais >tech. en électronique specialisé en radio-oncologie >Centre Hospitalier Régional de Rimouski (C.H.R.R.) >Rimouski ,Qc >G5L 5T1 > >office :(418) 724 - 8467 > fax : (418) 724 - 8247 >email : jean.yves.blais.chrr@ssss.gouv.qc. > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 21:06:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18H8SP-0000aU-00; Wed, 27 Nov 2002 21:06:50 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5996A1112F4; Wed, 27 Nov 2002 20:54:34 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA29597 for linac-eng-list; Wed, 27 Nov 2002 13:42:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA29589 for ; Wed, 27 Nov 2002 13:42:52 -0600 (CST) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA28585 for ; Thu, 28 Nov 2002 08:35:42 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Thu, 28 Nov 2002 08:37:51 -0600 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Thu, 28 Nov 2002 08:42:14 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Thu, 28 Nov 2002 08:42:11 +1300 From: "Dave Pinchin" To: , Subject: Re: collimator bearing Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 28 Nov 2002 08:42:11 +1300 From: "Dave Pinchin" To: , Subject: Re: collimator bearing Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net G'day Jean - Yves, I have seen this problem on boat trailer wheels. This mode of failure is quite common. Basically, the chrome has two purposes. 1/ Hardness. 2/ Anti corrosion. With hardness of course the rolling surfaces are more likely to become damaged and wear. This will mean you must keep the lube up to date. Anti corrosion. Without the chrome the surface of the steel races&balls will be more susceptible to rust etc. This can be helped a little by extra lube. BUT here's the killer. As the chrome chips off the surfaces in small slivers it becomes embedded in the softer steel of the balls and races. This is like filling the bearing race with sand (which, you can imagine is not really optimal). My suggestion therefore is. REPLACE URGENTLY. I'd hate to have that thing wearing out and dropping on a patient ! I have seen a coll. bearing replacement and can it wasn't as bad as it first looked. (OLD Varian machine). Good luck. Dave. >>> 28/11/02 06:00:34 >>> Hi everybody Let me know your story about ( if there is one ) an identical problem as the one described below Linac type : Siemens KD2 collimator : Standard ( no MLC ) Problem : collimator rotation become difficult and noisy Cause found and validated : the steel balls into the collimator bearing have lost chrome layers and with time those chrome particules finish to aglomerate together and fall in the gantry covers where we find it. This was looking like lead chunck until we analyse the material with 25x magnifier and found that it was ghrome layer. Solution : Clean collimator bearing with LPS degreaser and relube with LPS lubricant We have to relube the collimator about 3 time a year . I know that it is abnormal ( our other linac ( MD2 ) never show that problem ) Our service company know the problem but they ...... sleep on it . So ..... Questions are : Do you have ever seen such problem ? What has been the solution to fix it for good ? Jean - Yves Blais tech. en électronique specialisé en radio-oncologie Centre Hospitalier Régional de Rimouski (C.H.R.R.) Rimouski ,Qc G5L 5T1 office :(418) 724 - 8467 fax : (418) 724 - 8247 email : jean.yves.blais.chrr@ssss.gouv.qc. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 21:58:13 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18H9G9-0000jF-00; Wed, 27 Nov 2002 21:58:13 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 603F21112F9; Wed, 27 Nov 2002 21:45:56 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA01899 for linac-eng-list; Wed, 27 Nov 2002 14:33:05 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bhcpns.org ([199.190.155.93]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA01895 for ; Wed, 27 Nov 2002 14:33:04 -0600 (CST) From: lsullivan@bhcpns.org Received: from ([10.5.30.69]) by ironmail.bhcpns.org with ESMTP ; Wed, 27 Nov 2002 10:30:02 -0600 (CST) Subject: Oldelft simulator For Sale To: linac-eng@plato.aristotle.net Cc: jlabahn@bhcpns.org, bgentry@bhcpns.org X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: Date: Wed, 27 Nov 2002 14:32:09 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.11 |July 24, 2002) at 11/27/2002 02:32:09 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: lsullivan@bhcpns.org Subject: Oldelft simulator For Sale To: linac-eng@plato.aristotle.net Cc: jlabahn@bhcpns.org, bgentry@bhcpns.org Date: Wed, 27 Nov 2002 14:32:09 -0600 X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 5.0.11 |July 24, 2002) at 11/27/2002 02:32:09 PM Sender: owner-linac-eng@plato.aristotle.net Good day All. Baptist Hospital Has moved forward and is going to be removing our Oldelft Simulix-MC simulator and Replacing with a CT Sim in early 2003 If you are interested in this machine it will be available for purchase and removal at that time... Please respond by E-mail or phone with any questions We will be taking bids on this starting 12/01/2002.. Unit will be sold " Where is As is" Thank you Larry Sullivan Baptist Hospital Pensacola Fl 850-469-2200 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Nov 27 22:28:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18H9jE-0000le-00; Wed, 27 Nov 2002 22:28:16 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 61D061112F9 for ; Wed, 27 Nov 2002 22:16:00 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPDMS0FH349SHE2A@med.uu.nl> for kok@radth.med.uu.nl; Wed, 27 Nov 2002 22:16:54 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPDMRYLNF49SFK3M@med.uu.nl> for kok@radth.med.uu.nl; Wed, 27 Nov 2002 22:16:52 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA29597 for linac-eng-list; Wed, 27 Nov 2002 13:42:55 -0600 (CST) Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA29589 for ; Wed, 27 Nov 2002 13:42:52 -0600 (CST) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA28585 for ; Thu, 28 Nov 2002 08:35:42 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Thu, 28 Nov 2002 08:37:51 -0600 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Thu, 28 Nov 2002 08:42:14 +1300 Date: Thu, 28 Nov 2002 08:42:11 +1300 From: Dave Pinchin Subject: Re: collimator bearing Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, jean.yves.blais.chrr@ssss.gouv.qc.ca Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.2 Content-type: text/plain; charset=ISO-8859-1 Content-disposition: inline Content-transfer-encoding: 8BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 28 Nov 2002 08:42:11 +1300 From: Dave Pinchin Subject: Re: collimator bearing Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, jean.yves.blais.chrr@ssss.gouv.qc.ca Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f G'day Jean - Yves, I have seen this problem on boat trailer wheels. This mode of failure is quite common. Basically, the chrome has two purposes. 1/ Hardness. 2/ Anti corrosion. With hardness of course the rolling surfaces are more likely to become damaged and wear. This will mean you must keep the lube up to date. Anti corrosion. Without the chrome the surface of the steel races&balls will be more susceptible to rust etc. This can be helped a little by extra lube. BUT here's the killer. As the chrome chips off the surfaces in small slivers it becomes embedded in the softer steel of the balls and races. This is like filling the bearing race with sand (which, you can imagine is not really optimal). My suggestion therefore is. REPLACE URGENTLY. I'd hate to have that thing wearing out and dropping on a patient ! I have seen a coll. bearing replacement and can it wasn't as bad as it first looked. (OLD Varian machine). Good luck. Dave. >>> 28/11/02 06:00:34 >>> Hi everybody Let me know your story about ( if there is one ) an identical problem as the one described below Linac type : Siemens KD2 collimator : Standard ( no MLC ) Problem : collimator rotation become difficult and noisy Cause found and validated : the steel balls into the collimator bearing have lost chrome layers and with time those chrome particules finish to aglomerate together and fall in the gantry covers where we find it. This was looking like lead chunck until we analyse the material with 25x magnifier and found that it was ghrome layer. Solution : Clean collimator bearing with LPS degreaser and relube with LPS lubricant We have to relube the collimator about 3 time a year . I know that it is abnormal ( our other linac ( MD2 ) never show that problem ) Our service company know the problem but they ...... sleep on it . So ..... Questions are : Do you have ever seen such problem ? What has been the solution to fix it for good ? Jean - Yves Blais tech. en électronique specialisé en radio-oncologie Centre Hospitalier Régional de Rimouski (C.H.R.R.) Rimouski ,Qc G5L 5T1 office :(418) 724 - 8467 fax : (418) 724 - 8247 email : jean.yves.blais.chrr@ssss.gouv.qc. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 28 05:29:06 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18HGIU-00018Z-00; Thu, 28 Nov 2002 05:29:06 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E04381112FA; Thu, 28 Nov 2002 05:16:38 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA08635 for linac-eng-list; Wed, 27 Nov 2002 22:06:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from smtp.comcast.net (smtp.comcast.net [24.153.64.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA08631 for ; Wed, 27 Nov 2002 22:06:50 -0600 (CST) Received: from cc438936b (bgp603500bgs.midltn01.nj.comcast.net [68.39.62.248]) by mtaout05.icomcast.net (iPlanet Messaging Server 5.1 HotFix 1.5 (built Sep 23 2002)) with SMTP id <0H6900DBRQ2JLO@mtaout05.icomcast.net> for linac-eng@plato.aristotle.net; Wed, 27 Nov 2002 23:06:20 -0500 (EST) Date: Wed, 27 Nov 2002 23:04:39 -0500 From: "Thomas J. Fox" Subject: RE: Interlock error 30. Modulator Incomplete In-reply-to: <3DA88A7F@svhsnts02> To: Johnny Morales , linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 27 Nov 2002 23:04:39 -0500 From: "Thomas J. Fox" Subject: RE: Interlock error 30. Modulator Incomplete In-reply-to: <3DA88A7F@svhsnts02> To: Johnny Morales , linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Sender: owner-linac-eng@plato.aristotle.net As others have said, it might be helpful to know the interlock on the K2 panel. We had problems caused by both Facility Water Flow (which really is non-latching Modulator interlock) and then the Ceramic (switch) Thyratron. The thyratron problem became evident by the I-sec waveform. It would appear normal and suddenly change its' shape right in the middle of the waveform. The fault occurring then was always Charge System and if we removed the Charge Drawer we could see an I-sec fault latched (you must remove the charge drawer without removing AC power). We service 5 Primus (KP) Mevatrons and have already replaced 2 Thyratrons and will soon replace another that has a fluctuating AUX voltage. Each Primus that lost the Thyratron is less than 18 months old. This last one seems to be causing dose rate faults but the first 2 caused Mod. interlocks as described above. Good luck. Tom Fox Livingston Tech. (St. Barnabas Health Care System) New Jersey -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Johnny Morales Sent: Monday, November 25, 2002 9:58 PM To: linac-eng@plato.aristotle.net Subject: Interlock error 30. Modulator Incomplete Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 28 08:20:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18HIy6-0001dd-00; Thu, 28 Nov 2002 08:20:14 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 21E2D1112FA for ; Thu, 28 Nov 2002 08:07:44 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPE6IPLO409SG58Z@med.uu.nl> for kok@radth.med.uu.nl; Thu, 28 Nov 2002 08:02:26 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPE4MOG7X09SG4RW@med.uu.nl> for kok@radth.med.uu.nl; Thu, 28 Nov 2002 06:48:00 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA08635 for linac-eng-list; Wed, 27 Nov 2002 22:06:52 -0600 (CST) Received: from smtp.comcast.net (smtp.comcast.net [24.153.64.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA08631 for ; Wed, 27 Nov 2002 22:06:50 -0600 (CST) Received: from cc438936b (bgp603500bgs.midltn01.nj.comcast.net [68.39.62.248]) by mtaout05.icomcast.net (iPlanet Messaging Server 5.1 HotFix 1.5 (built Sep 23 2002)) with SMTP id <0H6900DBRQ2JLO@mtaout05.icomcast.net> for linac-eng@plato.aristotle.net; Wed, 27 Nov 2002 23:06:20 -0500 (EST) Date: Wed, 27 Nov 2002 23:04:39 -0500 From: "Thomas J. Fox" Subject: RE: Interlock error 30. Modulator Incomplete In-reply-to: <3DA88A7F@svhsnts02> Sender: owner-linac-eng@plato.aristotle.net To: Johnny Morales , linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 27 Nov 2002 23:04:39 -0500 From: "Thomas J. Fox" Subject: RE: Interlock error 30. Modulator Incomplete In-reply-to: <3DA88A7F@svhsnts02> Sender: owner-linac-eng@plato.aristotle.net To: Johnny Morales , linac-eng@plato.aristotle.net X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f As others have said, it might be helpful to know the interlock on the K2 panel. We had problems caused by both Facility Water Flow (which really is non-latching Modulator interlock) and then the Ceramic (switch) Thyratron. The thyratron problem became evident by the I-sec waveform. It would appear normal and suddenly change its' shape right in the middle of the waveform. The fault occurring then was always Charge System and if we removed the Charge Drawer we could see an I-sec fault latched (you must remove the charge drawer without removing AC power). We service 5 Primus (KP) Mevatrons and have already replaced 2 Thyratrons and will soon replace another that has a fluctuating AUX voltage. Each Primus that lost the Thyratron is less than 18 months old. This last one seems to be causing dose rate faults but the first 2 caused Mod. interlocks as described above. Good luck. Tom Fox Livingston Tech. (St. Barnabas Health Care System) New Jersey -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Johnny Morales Sent: Monday, November 25, 2002 9:58 PM To: linac-eng@plato.aristotle.net Subject: Interlock error 30. Modulator Incomplete Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 28 15:39:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18HPpG-0005px-00; Thu, 28 Nov 2002 15:39:34 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 88CF61112FB; Thu, 28 Nov 2002 15:26:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA15929 for linac-eng-list; Thu, 28 Nov 2002 08:13:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from tc00tecpro00009.ssss.gouv.qc.ca (mail.ssss.gouv.qc.ca [199.243.239.5]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA15925 for ; Thu, 28 Nov 2002 08:13:53 -0600 (CST) From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: Collimator bearing .... update To: linac-eng@plato.aristotle.net Date: Thu, 28 Nov 2002 09:11:22 -0500 Message-ID: X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/28/2002 09:12:38 AM MIME-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA15926 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: Collimator bearing .... update To: linac-eng@plato.aristotle.net Date: Thu, 28 Nov 2002 09:11:22 -0500 X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/28/2002 09:12:38 AM X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA15926 Sender: owner-linac-eng@plato.aristotle.net Yesterday in my email : Title : " Collimator bearing " I was writing in at the end : " Our service company know the problem but they .... sleep on it . So ..." In fact they were far away from ..sleeping on it . They are all set for.! I receive a call at the end of the day yesterday from my service company ( like they do normally ) to prepare the next PM on that machine scheduled for mid December . They announce me that they are set for and asking me to free a time window for the replacement of the collimator bearing at the PM date. So.. whatever I had written this words yesterday without bad thinking about my service company ( that was more JOKING than anything else ) .. there is the possibility of a bad interpretation of this phrase .... So for every one of you that had critics thinking on my service compagny about that problem..... please correct it. It is my first participation on a world wide mailling list ... Today I have learn this : " Never use words or expression which can be interpreted uncorrectly by the readers . The readers can't know you are joking , not making critcs. " Thanks for all of you that have reply to "Collimator bearing ". I regrets and apology for this. Take care ! Jean - Yves Blais tech. en électronique specialisé en radio-oncologie Centre Hospitalier Régional de Rimouski (C.H.R.R.) Rimouski ,Qc G5L 5T1 office :(418) 724 - 8467 fax : (418) 724 - 8247 email : jean.yves.blais.chrr@ssss.gouv.qc. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Nov 28 16:43:34 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18HQpB-0006cf-00; Thu, 28 Nov 2002 16:43:34 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 10C521112FB for ; Thu, 28 Nov 2002 16:30:52 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPEP0U6PPS9SH4IR@med.uu.nl> for kok@radth.med.uu.nl; Thu, 28 Nov 2002 16:32:04 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPEP0S5K2W9SI3IW@med.uu.nl> for kok@radth.med.uu.nl; Thu, 28 Nov 2002 16:32:02 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA15929 for linac-eng-list; Thu, 28 Nov 2002 08:13:55 -0600 (CST) Received: from tc00tecpro00009.ssss.gouv.qc.ca (mail.ssss.gouv.qc.ca [199.243.239.5]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA15925 for ; Thu, 28 Nov 2002 08:13:53 -0600 (CST) Date: Thu, 28 Nov 2002 09:11:22 -0500 From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: Collimator bearing .... update Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA15926 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8BIT Precedence: bulk X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/28/2002 09:12:38 AM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 28 Nov 2002 09:11:22 -0500 From: jean.yves.blais.chrr@ssss.gouv.qc.ca Subject: Collimator bearing .... update Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA15926 X-MIMETrack: Serialize by Router on TC00TECPRO00009/Serveurs/SSSS(Release 5.0.8 |June 18, 2001) at 11/28/2002 09:12:38 AM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Yesterday in my email : Title : " Collimator bearing " I was writing in at the end : " Our service company know the problem but they .... sleep on it . So ..." In fact they were far away from ..sleeping on it . They are all set for.! I receive a call at the end of the day yesterday from my service company ( like they do normally ) to prepare the next PM on that machine scheduled for mid December . They announce me that they are set for and asking me to free a time window for the replacement of the collimator bearing at the PM date. So.. whatever I had written this words yesterday without bad thinking about my service company ( that was more JOKING than anything else ) .. there is the possibility of a bad interpretation of this phrase .... So for every one of you that had critics thinking on my service compagny about that problem..... please correct it. It is my first participation on a world wide mailling list ... Today I have learn this : " Never use words or expression which can be interpreted uncorrectly by the readers . The readers can't know you are joking , not making critcs. " Thanks for all of you that have reply to "Collimator bearing ". I regrets and apology for this. Take care ! Jean - Yves Blais tech. en électronique specialisé en radio-oncologie Centre Hospitalier Régional de Rimouski (C.H.R.R.) Rimouski ,Qc G5L 5T1 office :(418) 724 - 8467 fax : (418) 724 - 8247 email : jean.yves.blais.chrr@ssss.gouv.qc. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 02 14:21:52 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18IqWG-0005k2-00; Mon, 02 Dec 2002 14:21:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4144411130F; Mon, 2 Dec 2002 14:24:11 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA23015 for linac-eng-list; Mon, 2 Dec 2002 06:50:22 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mailsweeper.nja.dk (212088077073.sonofon.dk [212.88.77.73]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA23011 for ; Mon, 2 Dec 2002 06:50:20 -0600 (CST) Received: from njapost.nja.dk (unverified) by mailsweeper.nja.dk (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Mon, 2 Dec 2002 13:50:17 +0100 Received: from NJA-Message_Server by njapost.nja.dk with Novell_GroupWise; Mon, 02 Dec 2002 13:49:48 +0100 Message-Id: X-Mailer: Novell GroupWise 5.5.2 Date: Mon, 02 Dec 2002 13:49:05 +0100 From: "Torben Gade" To: Subject: RV field setup Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA23012 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Mon, 02 Dec 2002 13:49:05 +0100 From: "Torben Gade" To: Subject: RV field setup Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA23012 Sender: owner-linac-eng@plato.aristotle.net Hello We have a problem on a Clinac 2100 CD,#1690 with PV and MLC. When we do a RV setup some times the one jaws is outside the limit when the setup are finish. The nurse must manual adjust the field with the Handpendant to continue the treatment. If someone has an idea for a solution of the problem I will be happy ? Torben Gade Aalborg Sygehus Denmark 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 02 15:32:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Irci-0006fb-00; Mon, 02 Dec 2002 15:32:36 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id AD5011112F1 for ; Mon, 2 Dec 2002 15:34:54 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPK7XJTUAO8WWNEL@med.uu.nl> for kok@radth.med.uu.nl; Mon, 2 Dec 2002 15:27:59 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPK7X1GYWC8WWOR6@med.uu.nl> for kok@radth.med.uu.nl; Mon, 02 Dec 2002 15:27:24 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA23015 for linac-eng-list; Mon, 02 Dec 2002 06:50:22 -0600 (CST) Received: from mailsweeper.nja.dk (212088077073.sonofon.dk [212.88.77.73]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA23011 for ; Mon, 02 Dec 2002 06:50:20 -0600 (CST) Received: from njapost.nja.dk (unverified) by mailsweeper.nja.dk (Content Technologies SMTPRS 4.2.10) with SMTP id for ; Mon, 02 Dec 2002 13:50:17 +0100 Received: from NJA-Message_Server by njapost.nja.dk with Novell_GroupWise; Mon, 02 Dec 2002 13:49:48 +0100 Date: Mon, 02 Dec 2002 13:49:05 +0100 From: Torben Gade Subject: RV field setup Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: MIME-version: 1.0 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA23012 X-Mailer: Novell GroupWise 5.5.2 Content-type: text/plain; charset="us-ascii" Content-disposition: inline Content-transfer-encoding: 8bit Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 02 Dec 2002 13:49:05 +0100 From: Torben Gade Subject: RV field setup Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA23012 Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hello We have a problem on a Clinac 2100 CD,#1690 with PV and MLC. When we do a RV setup some times the one jaws is outside the limit when the setup are finish. The nurse must manual adjust the field with the Handpendant to continue the treatment. If someone has an idea for a solution of the problem I will be happy ? Torben Gade Aalborg Sygehus Denmark 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 02 16:56:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Isvm-0007iN-00; Mon, 02 Dec 2002 16:56:22 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 206561112F1; Mon, 2 Dec 2002 16:58:38 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA25661 for linac-eng-list; Mon, 2 Dec 2002 09:27:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA25657 for ; Mon, 2 Dec 2002 09:27:55 -0600 (CST) From: twaldron@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id JAA01725; Mon, 2 Dec 2002 09:24:23 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C83.0054456C ; Mon, 2 Dec 2002 09:20:27 -0600 X-Lotus-FromDomain: MDACC To: "Scott Purcell" Cc: linac-eng@plato.aristotle.net Message-ID: <86256C83.00544517.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 2 Dec 2002 09:28:34 -0600 Subject: Re: Delaying Gun Pulses Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: twaldron@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Scott Purcell" Cc: linac-eng@plato.aristotle.net Date: Mon, 2 Dec 2002 09:28:34 -0600 Subject: Re: Delaying Gun Pulses Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Varian "high energy" machines (CL18, CL20, CL25, CL1800, CL2100, 21EX, etc.) have always utilized a gun delay scheme to control dose rate. The addition of "dynamic capabilities" changes practically nothing in the machine, except from where the delay control is accepted. There is a pretty good explanation of how it works in the "Systems Manual" that should have come with that machine (they were still sending them at that serial number). If you understood how the dose rate was controlled before, particularly for arc therapy mode, then you understand it now as well. Conversely, if you did not understand it before, you might want to focus on learning how it was done before prior to trying to get into the so-called "dynamic capabilities" aspect of things. Good luck. Tim Waldron "Scott Purcell" on 11/27/2002 08:42:45 AM To: linac-eng@plato.aristotle.net cc: (bcc: Timothy J. Waldron/MDACC) Subject: Delaying Gun Pulses Hi to all, We have just upgraded one of our Varian machines (2100C/D sn 1025) to have dynamic capabilities. What I don't know is how the delay of the gun pulses is done to shut the beam off while the MLC and or jaws move into the next position. Any information that could be provided would be greatly appreciated. Thanks in advance Scott Purcell Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada Email scott.purcell@cdha.nshealth.ca Phone: 902-473-2563 Fax: 902-473-6120 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 02 18:44:12 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Iuc8-0007vp-00; Mon, 02 Dec 2002 18:44:12 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9D04B1112F1; Mon, 2 Dec 2002 18:46:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA28520 for linac-eng-list; Mon, 2 Dec 2002 11:15:15 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from bajor.cancercare.on.ca ([142.76.1.63]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA28514 for ; Mon, 2 Dec 2002 11:15:02 -0600 (CST) Received: by bajor.tsrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Mon, 2 Dec 2002 12:14:18 -0500 Message-ID: From: "Rozenblat, Alex" To: "'linac'" Subject: Siemens MLC Date: Mon, 2 Dec 2002 12:14:17 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Rozenblat, Alex" To: "'linac'" Subject: Siemens MLC Date: Mon, 2 Dec 2002 12:14:17 -0500 Sender: owner-linac-eng@plato.aristotle.net Hello, everyone People who work with Siemens MLC know about so-called Test Unit (not old style Hand Control), which allows to do lots of calibrations when it's attached to Slaves inside MLC tower. My question: Does anyone know a source of a small toggle switch mounted on this Unit (Switch # 8)? It bears stamp: Japan, NDK, UT1G-1 0.5VA. I tried NDK website but all it indicates is Oscillators and Crystals. May be somebody knows a substitution from other manufacturer? Thank you in advance, Alex Rozenblat TSRCC, Toronto PS. John Somers, where are you? I sent you e-mail some time ago but address was not recognised. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 02 18:48:35 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18IugN-0007w2-00; Mon, 02 Dec 2002 18:48:35 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 0E8871112F1; Mon, 2 Dec 2002 18:50:47 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA28596 for linac-eng-list; Mon, 2 Dec 2002 11:19:25 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from PHSEXCHICI.MGH.HARVARD.EDU (phsexchici.mgh.harvard.edu [132.183.126.51]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA28592 for ; Mon, 2 Dec 2002 11:19:24 -0600 (CST) Received: by phsexchici.mgh.harvard.edu with Internet Mail Service (5.5.2655.55) id ; Mon, 2 Dec 2002 12:18:53 -0500 Message-ID: <36298D09ED1AD311B4DC0008C7F4D4E10A30F0BD@phsexch6.partners.org> From: "Maddox, Buford J" To: "'Thomas J. Fox'" , Johnny Morales , linac-eng@plato.aristotle.net Subject: RE: Interlock error 30. Modulator Incomplete Date: Mon, 2 Dec 2002 12:18:45 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" To: "'Thomas J. Fox'" , Johnny Morales , linac-eng@plato.aristotle.net Subject: RE: Interlock error 30. Modulator Incomplete Date: Mon, 2 Dec 2002 12:18:45 -0500 Sender: owner-linac-eng@plato.aristotle.net Tx for the detailed description of the thyratron symptoms as see on a scope. I am surprised to hear of the thyratron problmem, as ours has lasted for years. Is there a bad batch? Years ago a bad batch resulted from the retirement of the little old lady who sealed them, according to rumor. How much trouble to replace one? It is in oil, looks like it might take a while. Jerry -----Original Message----- From: Thomas J. Fox [mailto:tjfox@comcast.net] Sent: Wednesday, November 27, 2002 11:05 PM To: Johnny Morales; linac-eng@plato.aristotle.net Subject: RE: Interlock error 30. Modulator Incomplete As others have said, it might be helpful to know the interlock on the K2 panel. We had problems caused by both Facility Water Flow (which really is non-latching Modulator interlock) and then the Ceramic (switch) Thyratron. The thyratron problem became evident by the I-sec waveform. It would appear normal and suddenly change its' shape right in the middle of the waveform. The fault occurring then was always Charge System and if we removed the Charge Drawer we could see an I-sec fault latched (you must remove the charge drawer without removing AC power). We service 5 Primus (KP) Mevatrons and have already replaced 2 Thyratrons and will soon replace another that has a fluctuating AUX voltage. Each Primus that lost the Thyratron is less than 18 months old. This last one seems to be causing dose rate faults but the first 2 caused Mod. interlocks as described above. Good luck. Tom Fox Livingston Tech. (St. Barnabas Health Care System) New Jersey -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Johnny Morales Sent: Monday, November 25, 2002 9:58 PM To: linac-eng@plato.aristotle.net Subject: Interlock error 30. Modulator Incomplete Hi to all, We are having a continual problem with our new Siemens Primus KP2 giving interlock error "30. Modulator Incomplete". I wonder if any of you has had similar problems with these klystron machines?, and if any one has, Can you please let us know what the causes were and possible solutions?. We would greatly appreciate your answers. Many thanks, Johnny Morales Medical Physicist Radiation Oncology Level 10, O'Brien Building, St. Vincent's Hospital, Sydney Victoria Street Darlinghurst Australia Ph. +61 2 8382 2456 Fax +61 2 8382 3429 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been virus scanned and although no viruses were detected by the system, St Vincent's Hospital accepts no liability for any consequential damage resulting from email containing any computer viruses. ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 03 11:30:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JAJT-00039D-00; Tue, 03 Dec 2002 11:30:00 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 5E4E41112F5; Tue, 3 Dec 2002 11:31:48 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA19063 for linac-eng-list; Tue, 3 Dec 2002 03:58:19 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl ([212.115.200.190]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA19059 for ; Tue, 3 Dec 2002 03:58:12 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Tue, 3 Dec 2002 10:58:09 +0100 Message-ID: To: linac-eng@plato.aristotle.net Subject: ACQSIM-CT Date: Tue, 3 Dec 2002 10:58:08 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato.aristotle.net Subject: ACQSIM-CT Date: Tue, 3 Dec 2002 10:58:08 +0100 Sender: owner-linac-eng@plato.aristotle.net Hello list, Last March we installed an ACQSIM unit with the dedicated 80cm bore CT. The CT software (not the sim.software) came with version 1.0 And (as we all know) V.1.0 gives troubles. We have e.g. - startup problems (gantry communication) - tubeheat problems (miscalculated tubeheat) We hoped to gat a new version soon, but till now we did not receive one. Two questions: - sound these problems familiar to you? - has any of you already a newer version CT-SW? TIA Keesjan de Bruijne Biomedical Engineer Ziekenhuis Walcheren Vlissingen, the Netherlands dep. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 03 16:22:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JEsP-00070D-00; Tue, 03 Dec 2002 16:22:21 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EA71F1112F5; Tue, 3 Dec 2002 16:24:03 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA23762 for linac-eng-list; Tue, 3 Dec 2002 08:51:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from chs-exchsv2.covhealth.com ([199.250.70.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA23758 for ; Tue, 3 Dec 2002 08:51:45 -0600 (CST) Message-ID: From: "Lockhart, Ryan" To: "'linac-eng@plato.aristotle.net'" Subject: facility water quality Date: Tue, 3 Dec 2002 08:51:27 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lockhart, Ryan" To: "'linac-eng@plato.aristotle.net'" Subject: facility water quality Date: Tue, 3 Dec 2002 08:51:27 -0600 Sender: owner-linac-eng@plato.aristotle.net We have a new 21EX and an older 2100C. Our facility is a stand alone building and therefore uses water directly from the city, no chillers. We have 5 micron filters just before the heat exchangers in both of the machines. On the 21EX we have one and on the 2100C we have two in parallel. Since the installation of the 21EX I have had to change its filter once a week because of some nasty brown buildup on the filter. The 2100C filters need changed about once a month. The filter to the EX was just installed with the machine, therefore I don't have a history for its location. But the 2100C used to go about six months before requiring a filter change. I tend to blame the city water but they say that nothing has changed in our location and it's not their problem. Does anybody out there have any recommendations? If you have a setup like ours, do you filter your water, and if you do what size filter do you use? If I don't filter my water I figure I should just plan on replacing the heat exchanger every few months. Any suggestions are welcome. Thank you. Ryan Lockhart Biomedical Engineering Department Covenant Medical Center 3421 W. 9th St. Waterloo, IA 50702 Phone: 319.272.8058 Fax: 319.272.8055 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 03 17:17:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JFjR-0007TG-00; Tue, 03 Dec 2002 17:17:09 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 06BAB1112F5; Tue, 3 Dec 2002 17:18:50 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA24950 for linac-eng-list; Tue, 3 Dec 2002 09:49:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA24945 for ; Tue, 3 Dec 2002 09:49:51 -0600 (CST) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Tue, 3 Dec 2002 09:50:02 -0600 Received: (from RPC035 [172.24.49.35]) by neried.scf.sk.ca (NAVGW 2.5.2.12) with SMTP id M2002120309561514167 ; Tue, 03 Dec 2002 09:56:15 -0600 From: scot thiesson To: "'linac-eng@plato.aristotle.net'" , "Lockhart, Ryan" Date: Tue, 03 Dec 2002 09:49:40 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Message-Id: <4Z54XVXSHERM1WXV63XSHFUOCB2YOIHF.3decd294@RPC035> Subject: Re: facility water quality MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Opera 6.0 build 1010 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: scot thiesson To: "'linac-eng@plato.aristotle.net'" , "Lockhart, Ryan" Date: Tue, 03 Dec 2002 09:49:40 -0600 X-Priority: 3 (Normal) Organization: a.b.c.c. In-Reply-To: Subject: Re: facility water quality Sender: owner-linac-eng@plato.aristotle.net To extend the life of your heat exchangers you will need non-corrosive water, something you cannot achieve with a particle filter. In other words without treatment, a city will either have ?good? water or ?bad? water. Zinc anodes don't help either because the flow is constant. The only real way to extend the life of your heat exchanger in an open system is to go with the Varian stainless steel exchanger. Before we went to a closed system, filter changes were necessary about every six months and the Varian copper exchanger died in less then a year. A regular string filter is all you need. Scot Thiesson Senior Physics Tech. A.B.C.C. Regina Sask Canada 12/3/2002 8:51:27 AM, "Lockhart, Ryan" wrote: >We have a new 21EX and an older 2100C. Our facility is a stand alone >building and therefore uses water directly from the city, no chillers. We >have 5 micron filters just before the heat exchangers in both of the >machines. On the 21EX we have one and on the 2100C we have two in parallel. >Since the installation of the 21EX I have had to change its filter once a >week because of some nasty brown buildup on the filter. The 2100C filters >need changed about once a month. The filter to the EX was just installed >with the machine, therefore I don't have a history for its location. But >the 2100C used to go about six months before requiring a filter change. I >tend to blame the city water but they say that nothing has changed in our >location and it's not their problem. Does anybody out there have any >recommendations? If you have a setup like ours, do you filter your water, >and if you do what size filter do you use? If I don't filter my water I >figure I should just plan on replacing the heat exchanger every few months. >Any suggestions are welcome. Thank you. > >Ryan Lockhart >Biomedical Engineering Department >Covenant Medical Center >3421 W. 9th St. >Waterloo, IA 50702 >Phone: 319.272.8058 >Fax: 319.272.8055 > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 03 17:29:22 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JFvG-0007VZ-00; Tue, 03 Dec 2002 17:29:22 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 120211112F5 for ; Tue, 3 Dec 2002 17:31:04 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPLQE8SQDC8WY4CM@med.uu.nl> for kok@radth.med.uu.nl; Tue, 3 Dec 2002 17:26:40 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPLQE690AK8WY3RS@med.uu.nl> for kok@radth.med.uu.nl; Tue, 03 Dec 2002 17:26:37 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA23762 for linac-eng-list; Tue, 03 Dec 2002 08:51:47 -0600 (CST) Received: from chs-exchsv2.covhealth.com ([199.250.70.65]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA23758 for ; Tue, 03 Dec 2002 08:51:45 -0600 (CST) Date: Tue, 03 Dec 2002 08:51:27 -0600 From: "Lockhart, Ryan" Subject: facility water quality Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" Message-id: MIME-version: 1.0 Content-type: text/plain; charset="iso-8859-1" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 03 Dec 2002 08:51:27 -0600 From: "Lockhart, Ryan" Subject: facility water quality Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f We have a new 21EX and an older 2100C. Our facility is a stand alone building and therefore uses water directly from the city, no chillers. We have 5 micron filters just before the heat exchangers in both of the machines. On the 21EX we have one and on the 2100C we have two in parallel. Since the installation of the 21EX I have had to change its filter once a week because of some nasty brown buildup on the filter. The 2100C filters need changed about once a month. The filter to the EX was just installed with the machine, therefore I don't have a history for its location. But the 2100C used to go about six months before requiring a filter change. I tend to blame the city water but they say that nothing has changed in our location and it's not their problem. Does anybody out there have any recommendations? If you have a setup like ours, do you filter your water, and if you do what size filter do you use? If I don't filter my water I figure I should just plan on replacing the heat exchanger every few months. Any suggestions are welcome. Thank you. Ryan Lockhart Biomedical Engineering Department Covenant Medical Center 3421 W. 9th St. Waterloo, IA 50702 Phone: 319.272.8058 Fax: 319.272.8055 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 03 19:51:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JI8v-0007rc-00; Tue, 03 Dec 2002 19:51:37 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id A2E2A1112F7; Tue, 3 Dec 2002 19:53:14 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA04114 for linac-eng-list; Tue, 3 Dec 2002 12:17:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from KRCCMAIL.krcc.on.ca (mail.krcc.on.ca [207.35.220.24]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA04089 for ; Tue, 3 Dec 2002 12:17:37 -0600 (CST) Received: by KRCCMAIL with Internet Mail Service (5.5.2656.59) id ; Tue, 3 Dec 2002 13:19:28 -0500 Message-ID: From: "Feuerstake, Tom" To: "'linac-eng@plato.aristotle.net'" Subject: RE: facility water quality Date: Tue, 3 Dec 2002 13:19:27 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C29AF8.840D0D50" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Feuerstake, Tom" To: "'linac-eng@plato.aristotle.net'" Subject: RE: facility water quality Date: Tue, 3 Dec 2002 13:19:27 -0500 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C29AF8.840D0D50 Content-Type: text/plain; charset="iso-8859-1" The 5 micron filter may be too fine for city water. A 25 micron might be all you need. Also note, a filter of this kind has very little effect on the corrosive properties of water. If your system seems to suddenly need more filter changes than before, you want need to consider what the cause of this is. Could be some material is breaking down (like rubber hose or metal), or algae contamination. Algae can suddenly increase during certain times of year due to temperature change. You could have the material analyzed by a lab to determine whether it's animal, vegetable or mineral. Use of dissimilar metals can cause a cathodic reaction which rapidly corrodes components. You can add zinc anode plugs to try and neutralize the water. I would rather change the anode plugs every few months than change the heat exchanger, these can be pretty expensive. -my opinion only, insert disclaimer here- Tom Feuerstake Kingston, Ontario (Canada) -----Original Message----- From: Lockhart, Ryan [mailto:LockhartR@covhealth.com] Sent: December 3, 2002 9:51 AM To: 'linac-eng@plato.aristotle.net' Subject: facility water quality We have a new 21EX and an older 2100C. Our facility is a stand alone building and therefore uses water directly from the city, no chillers. We have 5 micron filters just before the heat exchangers in both of the machines. On the 21EX we have one and on the 2100C we have two in parallel. Since the installation of the 21EX I have had to change its filter once a week because of some nasty brown buildup on the filter. The 2100C filters need changed about once a month. The filter to the EX was just installed with the machine, therefore I don't have a history for its location. But the 2100C used to go about six months before requiring a filter change. I tend to blame the city water but they say that nothing has changed in our location and it's not their problem. Does anybody out there have any recommendations? If you have a setup like ours, do you filter your water, and if you do what size filter do you use? If I don't filter my water I figure I should just plan on replacing the heat exchanger every few months. Any suggestions are welcome. Thank you. Ryan Lockhart Biomedical Engineering Department Covenant Medical Center 3421 W. 9th St. Waterloo, IA 50702 Phone: 319.272.8058 Fax: 319.272.8055 ------_=_NextPart_001_01C29AF8.840D0D50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: facility water quality

    The 5 micron filter may be too fine for city water. A = 25 micron might be all you need. Also note, a filter of this kind has = very little effect on the corrosive properties of water. If your system = seems to suddenly need more filter changes than before, you want need = to consider what the cause of this is. Could be some material is = breaking down (like rubber hose or metal), or algae contamination. = Algae can suddenly increase during certain times of year due to = temperature change.

    You could have the material analyzed by a lab to = determine whether it's animal, vegetable or mineral. Use of dissimilar = metals can cause a cathodic reaction which rapidly corrodes components. = You can add zinc anode plugs to try and neutralize the water. I would = rather change the anode plugs every few months than change the heat = exchanger, these can be pretty expensive.

    -my opinion only, insert disclaimer here-

    Tom Feuerstake
    Kingston, Ontario (Canada)


     -----Original Message-----
    From:   Lockhart, Ryan [mailto:LockhartR@covhealth.com]
    Sent:   December 3, 2002 9:51 AM
    To:     = 'linac-eng@plato.aristotle.net'
    Subject:        = facility water quality

    We have a new 21EX and an older 2100C.  Our = facility is a stand alone
    building and therefore uses water directly from the = city, no chillers.  We
    have 5 micron filters just before the heat = exchangers in both of the
    machines.  On the 21EX we have one and on the = 2100C we have two in parallel.
    Since the installation of the 21EX I have had to = change its filter once a
    week because of some nasty brown buildup on the = filter.  The 2100C filters
    need changed about once a month.  The filter to = the EX was just installed
    with the machine, therefore I don't have a history = for its location.  But
    the 2100C used to go about six months before = requiring a filter change.  I
    tend to blame the city water but they say that = nothing has changed in our
    location and it's not their problem.  Does = anybody out there have any
    recommendations?  If you have a setup like = ours, do you filter your water,
    and if you do what size filter do you use?  If = I don't filter my water I
    figure I should just plan on replacing the heat = exchanger every few months.
    Any suggestions are welcome.  Thank you.

    Ryan Lockhart
    Biomedical Engineering Department
    Covenant Medical Center
    3421 W. 9th St.
    Waterloo, IA  50702
    Phone:  319.272.8058
    Fax:      = 319.272.8055

    ------_=_NextPart_001_01C29AF8.840D0D50-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 04 14:20:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JZS5-0005Xe-00; Wed, 04 Dec 2002 14:20:33 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6FD7C1112F4; Wed, 4 Dec 2002 14:21:40 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA26235 for linac-eng-list; Wed, 4 Dec 2002 06:51:40 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail4.nhs.uk (mail4.nhs.uk [194.72.23.241]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA26231 for ; Wed, 4 Dec 2002 06:51:38 -0600 (CST) Received: from hn-ext by mail4.nhs.uk (Sendmail 8.8.8) with esmtp id 18JYzX-000120-00; Wed, 04 Dec 2002 12:51:03 +0000 Received: from relay.nhs.uk (194.62.42.142) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3DD28BFA00339449 for linac-eng@plato.aristotle.net; Wed, 4 Dec 2002 12:51:03 +0000 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-2 6.5.026) (authenticated as smtp_leedsth_nhs_uk@es2002.nhs.uk) id 3DD9587D004477C2 for linac-eng@plato.aristotle.net; Wed, 4 Dec 2002 12:51:03 +0000 Received: from LTH-MTA by smtp.leedsth.nhs.uk with Novell_GroupWise; Wed, 04 Dec 2002 12:51:20 +0000 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Wed, 04 Dec 2002 12:51:01 +0000 From: "Chris Forrest" To: Subject: Nucletron HP Sim Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA26232 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 04 Dec 2002 12:51:01 +0000 From: "Chris Forrest" To: Subject: Nucletron HP Sim Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA26232 Sender: owner-linac-eng@plato.aristotle.net Hi, Anyone seen this one? - before we start spending lots of time on it; Simulix HP - Message "Table circuits fault" appears. Not necessarily when moving table. Has happened during CT Scan and also saw an effect where all four field wires and shutters appeared to move "south west" slowly as the scan was being performed. (almost as if the 10v pot reference was drifting?) The table circuits fault has also appeared at the point just before pressing TOMO on the control desk. The unit has also had "gantry circuits" faults now and again. The POTMETER PCB(+10v ref), Table Control pcb which made no difference. The +19v PSU was replaced and all went quiet for a couple of days until... Let me guess - you've all seen this one before!??! Thanks Chris Chris Forrest Technical Specialist Radiotherapy Technology Services Cookridge Hospital Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 04 18:46:54 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Jdbq-0007SE-00; Wed, 04 Dec 2002 18:46:54 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 1CE62111314; Wed, 4 Dec 2002 18:47:54 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA01780 for linac-eng-list; Wed, 4 Dec 2002 11:22:07 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from irm-fw.inhs.org (inhs.org [198.185.134.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA01776 for ; Wed, 4 Dec 2002 11:22:06 -0600 (CST) Received: from mailserver.inhs.org by irm-fw.inhs.org via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 4 Dec 2002 17:22:08 UT Received: by webmail01.webmail01.inhs.org with Internet Mail Service (5.5.2653.19) id ; Wed, 4 Dec 2002 09:22:51 -0800 Message-ID: <116B1F67502ED3119B2D00902740B816025C4A5A@exchange3.inhs.org> From: "Bush, Thomas M." To: "'Linac-eng@plato.Aristotle.net'" Subject: 2100cd "no beam-on... no nothing! Date: Wed, 4 Dec 2002 09:22:30 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bush, Thomas M." To: "'Linac-eng@plato.Aristotle.net'" Subject: 2100cd "no beam-on... no nothing! Date: Wed, 4 Dec 2002 09:22:30 -0800 Sender: owner-linac-eng@plato.aristotle.net Hi to all and Merry Christmas! I have a very strange problem and thought maybe someone out there has seen this. The machine is a 2100cd C-3 s/n 1209. When the therapist presses "beam on" nothing happens. Also no fault on the screen. then they try again... nothing. One time they pressed the beam on button 21 times before the beam came on but still no faults at all. I have replaced the entire keyboard (first the top button panel and then the PCB). I have replaced the Timer interface PCB and have replaced the key switch on the dedicated keyboard (twice). I think there must be a fault that is not displayed on the monitor that is stopping the beam on key from doing anything but have not yet found anything. ( I am having the therapist monitor the Input Interface 2 pcb LEDs for a possible flickering fault that does not display?) Anyway, some days it will not occur at all and other days it will happen 3 times. I'm going to look at the K-sol and 6x b-mag fault sets this evening because it always happens in the afternoon and usually later in the day and so far has only been on 6x. ...and of course, I have never seen it happen . Thank for any thoughts! Tom Bush Sacred Heart Med Center Spokane, Wa 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 04 19:33:18 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JeKj-0007WO-00; Wed, 04 Dec 2002 19:33:18 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id E2B9C1112F4; Wed, 4 Dec 2002 19:34:21 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA02868 for linac-eng-list; Wed, 4 Dec 2002 12:11:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAB02864 for ; Wed, 4 Dec 2002 12:11:36 -0600 (CST) From: clfikes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id MAA03434; Wed, 4 Dec 2002 12:07:56 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C85.00633CEE ; Wed, 4 Dec 2002 12:03:56 -0600 X-Lotus-FromDomain: MDACC To: "Bush, Thomas M." Cc: "'Linac-eng@plato.Aristotle.net'" Message-ID: <86256C85.00633C85.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 4 Dec 2002 12:03:57 -0600 Subject: Re: 2100cd "no beam-on... no nothing! Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clfikes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: "Bush, Thomas M." Cc: "'Linac-eng@plato.Aristotle.net'" Date: Wed, 4 Dec 2002 12:03:57 -0600 Subject: Re: 2100cd "no beam-on... no nothing! Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Tom, I experienced a similar problem once on an older 2100 #95. The problem was a KSOL problem, but the KSOL interlock would never show. In fact, if I went into service mode and bypassed the KSOL interlock, then the machine would run just fine. I think it was just a loose KSOL connection. The machine would occasionally interlock with a KSOL, but never with initial beam on. Good luck. Chad Fikes MD Anderson Cancer Center "Bush, Thomas M." on 12/04/2002 11:22:30 AM To: "'Linac-eng@plato.Aristotle.net'" cc: (bcc: Chad L. Fikes/MDACC) Subject: 2100cd "no beam-on... no nothing! Hi to all and Merry Christmas! I have a very strange problem and thought maybe someone out there has seen this. The machine is a 2100cd C-3 s/n 1209. When the therapist presses "beam on" nothing happens. Also no fault on the screen. then they try again... nothing. One time they pressed the beam on button 21 times before the beam came on but still no faults at all. I have replaced the entire keyboard (first the top button panel and then the PCB). I have replaced the Timer interface PCB and have replaced the key switch on the dedicated keyboard (twice). I think there must be a fault that is not displayed on the monitor that is stopping the beam on key from doing anything but have not yet found anything. ( I am having the therapist monitor the Input Interface 2 pcb LEDs for a possible flickering fault that does not display?) Anyway, some days it will not occur at all and other days it will happen 3 times. I'm going to look at the K-sol and 6x b-mag fault sets this evening because it always happens in the afternoon and usually later in the day and so far has only been on 6x. ...and of course, I have never seen it happen . Thank for any thoughts! Tom Bush Sacred Heart Med Center Spokane, Wa 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 04 20:36:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18JfJw-0007bT-00; Wed, 04 Dec 2002 20:36:32 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D4C171112F4; Wed, 4 Dec 2002 20:37:34 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA04721 for linac-eng-list; Wed, 4 Dec 2002 13:12:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from NGATE01.qe2-hsc.ns.ca (smtp.qe2-hsc.ns.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id NAA04714 for ; Wed, 4 Dec 2002 13:12:53 -0600 (CST) Received: from sdc_dom-Message_Server by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Wed, 04 Dec 2002 15:07:33 -0400 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.4.1 Date: Wed, 04 Dec 2002 15:07:10 -0400 From: "Scott Purcell" To: , Subject: Re: 2100cd "no beam-on... no nothing! Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA04715 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 04 Dec 2002 15:07:10 -0400 From: "Scott Purcell" To: , Subject: Re: 2100cd "no beam-on... no nothing! Content-Disposition: inline X-Guinevere: 1.1.14 ; Nova Scotia Hospital X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA04715 Sender: owner-linac-eng@plato.aristotle.net Hi Tom Here are a couple of things to try. First check the relays on the AUX power dist PCB there are know to become loose in their sockets and also have a good look at KVH 1 and KVH2. Check the step start relays K1 & K2 in the Aux power dist the may need to be changed. Good luck Scott Scott Purcell, C.E.T Linear Accelerator Service Technologist Department of Medical Physics Nova Scotia Cancer Centre 5820 University Avenue Halifax, Nova Scotia Canada Email scott.purcell@cdha.nshealth.ca Phone: 902-473-2563 Fax: 902-473-6120 >>> "Bush, Thomas M." 12/04/02 01:22PM >>> Hi to all and Merry Christmas! I have a very strange problem and thought maybe someone out there has seen this. The machine is a 2100cd C-3 s/n 1209. When the therapist presses "beam on" nothing happens. Also no fault on the screen. then they try again... nothing. One time they pressed the beam on button 21 times before the beam came on but still no faults at all. I have replaced the entire keyboard (first the top button panel and then the PCB). I have replaced the Timer interface PCB and have replaced the key switch on the dedicated keyboard (twice). I think there must be a fault that is not displayed on the monitor that is stopping the beam on key from doing anything but have not yet found anything. ( I am having the therapist monitor the Input Interface 2 pcb LEDs for a possible flickering fault that does not display?) Anyway, some days it will not occur at all and other days it will happen 3 times. I'm going to look at the K-sol and 6x b-mag fault sets this evening because it always happens in the afternoon and usually later in the day and so far has only been on 6x. ...and of course, I have never seen it happen . Thank for any thoughts! Tom Bush Sacred Heart Med Center Spokane, Wa 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 04 22:24:51 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Jh0l-0007kS-00; Wed, 04 Dec 2002 22:24:51 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 48B3311131B; Wed, 4 Dec 2002 22:25:50 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA07892 for linac-eng-list; Wed, 4 Dec 2002 15:00:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m07.mx.aol.com (imo-m07.mx.aol.com [64.12.136.162]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA07888 for ; Wed, 4 Dec 2002 15:00:34 -0600 (CST) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-m07.mx.aol.com (mail_out_v34.13.) id y.bd.2b4cb59a (4328) for ; Wed, 4 Dec 2002 15:59:41 -0500 (EST) Message-ID: Date: Wed, 4 Dec 2002 15:59:41 EST Subject: 2100c To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_bd.2b4cb59a.2b1fc6bd_boundary" X-Mailer: AOL 8.0 for Windows US sub 230 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Wed, 4 Dec 2002 15:59:41 EST Subject: 2100c To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_bd.2b4cb59a.2b1fc6bd_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to everyone on the list, I am looking for (tentative request) a 2100c with dual independant jaws that has 6 and 10 photon energies. The availability time would be in a 6 month time frame. Any information can be emailed to me. Thanks in advance and happy holidays to all. Mike Liddicote Accelerator Associates (909) 279-9853 MLAA @aol.com --part1_bd.2b4cb59a.2b1fc6bd_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello to everyone on the list,

           I am looking for (tentative request) a 2100c with dual independant jaws that has 6 and 10 photon energies.  The availability time would be in a 6 month time frame.  Any information can be emailed to me.  Thanks in advance and happy holidays to all.

    Mike Liddicote
    Accelerator Associates
    (909) 279-9853
    MLAA @aol.com     --part1_bd.2b4cb59a.2b1fc6bd_boundary-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 05 11:16:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Jt3e-0001Vo-00; Thu, 05 Dec 2002 11:16:38 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8A5961105EB; Thu, 5 Dec 2002 11:17:19 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA21361 for linac-eng-list; Thu, 5 Dec 2002 03:46:59 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from lt5.ltkronoberg.se (mail.ltkronoberg.se [194.237.0.23]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA21357 for ; Thu, 5 Dec 2002 03:46:57 -0600 (CST) Received: by LT5 with Internet Mail Service (5.5.2653.19) id ; Thu, 5 Dec 2002 10:46:26 +0100 Message-ID: <9D894AB8D748D3118A1800508B073AE60227195F@CLV4> From: Larsson Christer MFT CLV To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" Cc: "'linac-eng@plato.aristotle.net'" Subject: SV: ACQSIM-CT Date: Thu, 5 Dec 2002 10:46:24 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA21358 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Larsson Christer MFT CLV To: "'CJ.de.Bruijne@walcheren.ziekenhuis.nl'" Cc: "'linac-eng@plato.aristotle.net'" Subject: SV: ACQSIM-CT Date: Thu, 5 Dec 2002 10:46:24 +0100 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id DAA21358 Sender: owner-linac-eng@plato.aristotle.net Hello Keesjan, We have an Ultra-Z (70 cm hole) with ACQSIM since 2.5 years and have experienced a lot of gantry problems/ contactor blew-off problems. Since april this year, we have SW Version 1.15 and at the same time we found out that Inverter #3 was defect. These two changes reduced the problems a lot, but not 100%. Occasionally we still get Gantry problems (average once per week) and have to reboot. We have been adviced to change the whole AC-Input chassie, which we will do soon. Best Regards Christer Larsson/ Vaxjo > -----Ursprungligt meddelande----- > Från: CJ.de.Bruijne@walcheren.ziekenhuis.nl > [SMTP:CJ.de.Bruijne@walcheren.ziekenhuis.nl] > Skickat: den 3 december 2002 10:58 > Till: linac-eng@plato.aristotle.net > Ämne: ACQSIM-CT > > Hello list, > > Last March we installed an ACQSIM unit with the dedicated 80cm bore CT. > The CT software (not the sim.software) came with version 1.0 > And (as we all know) V.1.0 gives troubles. > We have e.g. > - startup problems (gantry communication) > - tubeheat problems (miscalculated tubeheat) > > We hoped to gat a new version soon, but till now we did not receive one. > > Two questions: > - sound these problems familiar to you? > - has any of you already a newer version CT-SW? > > TIA > Keesjan de Bruijne > Biomedical Engineer > Ziekenhuis Walcheren > Vlissingen, the Netherlands > dep. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 05 18:50:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18K08s-0005hS-00; Thu, 05 Dec 2002 18:50:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6FFCF1105E6; Thu, 5 Dec 2002 18:51:01 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA28837 for linac-eng-list; Thu, 5 Dec 2002 11:17:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from hotmail.com (oe18.law8.hotmail.com [216.33.240.122]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA28833 for ; Thu, 5 Dec 2002 11:17:11 -0600 (CST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 5 Dec 2002 09:16:40 -0800 X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Linac Question" Subject: Dynamic MLC in IMRT Date: Thu, 5 Dec 2002 12:16:46 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01C29C58.2DF41060" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 Disposition-Notification-To: "JoseV" X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4920.2300 Message-ID: X-OriginalArrivalTime: 05 Dec 2002 17:16:40.0701 (UTC) FILETIME=[1385C2D0:01C29C82] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Originating-IP: [198.160.134.100] From: "JoseV" To: "Linac Question" Subject: Dynamic MLC in IMRT Date: Thu, 5 Dec 2002 12:16:46 -0500 X-Priority: 3 X-MSMail-Priority: Normal Disposition-Notification-To: "JoseV" X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4920.2300 X-OriginalArrivalTime: 05 Dec 2002 17:16:40.0701 (UTC) FILETIME=[1385C2D0:01C29C82] Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0043_01C29C58.2DF41060 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi group, For those IMRT expert. I am trying to investigate the limitation of clinac at performing IMRT, = we are in the commissioning process and we were wondering what is the = minimum dose at a maximum R/R it can be delivery? we had a 10x10 field = and a 1cm leaf off the field moving in/out with a plan of 4 segment, = when we set up for 4MU at 300 RR it deliver 1mu for each segment, but = when we set up the same dose for higher RR 600rr it doesn't make it, it = delivers 1mu in the first segment and the 3 remaining in a second = segment instead of one for each segment, is this a limitation of the = equipment or is there anything you can do in order to control the = delivery of the dose at high RR, Please advice, Thanks. Jose Villegas Baptist Hospital Miami, FL 305-596-1960 X:6907 ------=_NextPart_000_0043_01C29C58.2DF41060 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi group,
     
     
    For those IMRT expert.
    I am trying to investigate the = limitation of clinac=20 at performing IMRT, we are in the commissioning process and we were = wondering=20 what is the minimum dose at a maximum R/R it can be delivery? we had a 10x10 field and a 1cm leaf off the = field moving=20 in/out with a plan of 4 segment, when we set up for 4MU at 300 RR it = deliver 1mu=20 for each segment, but when we set up the same dose for higher RR 600rr it doesn't make it, it delivers 1mu in = the first=20 segment and the 3 remaining in a second segment instead of one for each = segment,=20 is this a limitation of the equipment or is there anything you can do in = order=20 to control the delivery of the dose at high RR,
     
    Please advice,
     
    Thanks.
     
    Jose Villegas
    Baptist Hospital
    Miami, FL
    305-596-1960 = X:6907
    ------=_NextPart_000_0043_01C29C58.2DF41060-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 06 16:32:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18KKSn-0005VH-00; Fri, 06 Dec 2002 16:32:25 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C2D6B1105E6; Fri, 6 Dec 2002 16:32:25 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id IAA17238 for linac-eng-list; Fri, 6 Dec 2002 08:56:11 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from scf.sk.ca (shin.communitynet.ca [216.174.136.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA17234 for ; Fri, 6 Dec 2002 08:56:09 -0600 (CST) Received: from neried.scf.sk.ca (unverified [172.24.48.3]) by scf.sk.ca (Rockliffe SMTPRA 5.2.4) with SMTP id for ; Fri, 6 Dec 2002 08:56:15 -0600 Received: (from spc160 [172.24.56.160]) by neried.scf.sk.ca (NAVGW 2.5.2.12) with SMTP id M2002120608575227230 for ; Fri, 06 Dec 2002 08:57:52 -0600 From: "Brian Martin" To: "Linac Engineer group (E-mail)" Subject: FW: Dynamic MLC in IMRT Date: Fri, 6 Dec 2002 08:56:07 -0600 Message-ID: <000201c29d37$9b6e1480$a03818ac@scadomain.local> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01C29D05.50D61580" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Brian Martin" To: "Linac Engineer group (E-mail)" Subject: FW: Dynamic MLC in IMRT Date: Fri, 6 Dec 2002 08:56:07 -0600 X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0003_01C29D05.50D61580 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit This might be due to the "overshoot phenomenom", see Ezzell and Chungbin J Appl Clin Med Phys 2001 Summer;2(3):138-48 Related Articles, Links The overshoot phenomenon in step-and-shoot IMRT delivery. Basically, there is a fixed amount of time for the MLC controller to indicate to the clinac that the gun should grid off the beam (perhaps ~ 20 - 40 msec). When the first segment is finished, it may take 600MU/60sec * 0.04 sec = 0.5 MUs before the gun is gridded. You didn't state what the total MUs were for your test, but if they were around 1 MU then the first would get 0.25 MUs; the middle two would be skipped (since the OFF signal hadn't arrived yet) and the final segement would get the left over 0.25 MU. The is just a guess on my part but might be what you are seeing. Pat Cadman saskatoon Cancer Centre (306)655-2696 pcadman@scf.sk.ca -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of JoseV Sent: Thursday, December 05, 2002 11:17 AM To: Linac Question Subject: Dynamic MLC in IMRT Hi group, For those IMRT expert. I am trying to investigate the limitation of clinac at performing IMRT, we are in the commissioning process and we were wondering what is the minimum dose at a maximum R/R it can be delivery? we had a 10x10 field and a 1cm leaf off the field moving in/out with a plan of 4 segment, when we set up for 4MU at 300 RR it deliver 1mu for each segment, but when we set up the same dose for higher RR 600rr it doesn't make it, it delivers 1mu in the first segment and the 3 remaining in a second segment instead of one for each segment, is this a limitation of the equipment or is there anything you can do in order to control the delivery of the dose at high RR, Please advice, Thanks. Jose Villegas Baptist Hospital Miami, FL 305-596-1960 X:6907 ------=_NextPart_000_0003_01C29D05.50D61580 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
     
     
     
    This=20 might be due to the "overshoot phenomenom", see Ezzell and=20 Chungbin
     
    J Appl Clin Med Phys 2001 Summer;2(3):138-48 Related Articles, Links =
    ------=_NextPart_000_0003_01C29D05.50D61580-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 06 18:03:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18KLsw-00060Z-00; Fri, 06 Dec 2002 18:03:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6EB151105E6; Fri, 6 Dec 2002 18:03:28 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA20945 for linac-eng-list; Fri, 6 Dec 2002 10:22:22 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from [192.234.106.2] ([192.234.106.2]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA20941 for ; Fri, 6 Dec 2002 10:22:20 -0600 (CST) From: John.McGee@lvh.com Received: from lvhlsgcs2.lvh.com by [192.234.106.2] via smtpd (for plato.aristotle.net [206.66.224.2]) with SMTP; 6 Dec 2002 16:22:20 UT X-Internal-ID: 3DF06A5A000018B9 Received: from lvh.com (192.234.106.35) by lvhlsgcs2.lvh.com (NPlex 2.0.108) for linac-eng@plato.aristotle.net; 6 Dec 2002 11:12:20 -0500 Message-ID: Date: Fri, 6 Dec 2002 11:22:00 -0500 To: linac-eng@plato.aristotle.net Subject: sls-14 in room monitor Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: John.McGee@lvh.com X-Internal-ID: 3DF06A5A000018B9 Date: Fri, 6 Dec 2002 11:22:00 -0500 To: linac-eng@plato.aristotle.net Subject: sls-14 in room monitor Sender: owner-linac-eng@plato.aristotle.net I have a Phillips SLS-14 simulator who's in room monitor took a dive this week. I have tried three different R-G-B monitors and have not been able to get a picture. If I bypass that monitor and sent the video straight to the control console I do have video. Does anyone have any good directions I could use? Thanks for the help in advance and Season's Greetings to all. John McGee John and Dorothy Morgan Cancer Center Lehigh Valley Hospital Allentown,PA. 18105 610-402-0729 Please note that if you received this message in error,you are hereby notified that any dissemination of this communication is strictly prohibited. Please notify me immediately by reply e-mail and delete all copies of the original message. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 06 18:08:43 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18KLxz-00061C-00; Fri, 06 Dec 2002 18:08:43 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 62CAC1105E6; Fri, 6 Dec 2002 18:08:41 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA21159 for linac-eng-list; Fri, 6 Dec 2002 10:33:52 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA21155 for ; Fri, 6 Dec 2002 10:33:50 -0600 (CST) Received: from 165.214.16.134 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Fri, 06 Dec 2002 10:35:06 -0600 Received: by exweb01.colhca.com with Internet Mail Service (5.5.2653.19) id ; Fri, 6 Dec 2002 10:33:16 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8665A@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "Linac list (E-mail)" Cc: Barrett Marc Subject: 2100C value Date: Fri, 6 Dec 2002 10:28:43 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "Linac list (E-mail)" Cc: Barrett Marc Subject: 2100C value Date: Fri, 6 Dec 2002 10:28:43 -0600 Sender: owner-linac-eng@plato.aristotle.net Hello to all, I'm trying to get an idea on the worth of a Varian 2100C approx. 10 years old. I believe it is a C1 machine, independent jaws,etr couch, no mlc. If anybody could give me a rough estimate on its value I would appreciate it. Also how much one might expect to pay for rigging this machine out. Thanks in advance, Mike T. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 06 18:33:30 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18KMLy-00062u-00; Fri, 06 Dec 2002 18:33:30 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8F1771105E6; Fri, 6 Dec 2002 18:33:27 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA22491 for linac-eng-list; Fri, 6 Dec 2002 11:11:06 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dmx.hs.uab.edu ([164.111.99.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA22487 for ; Fri, 6 Dec 2002 11:11:05 -0600 (CST) Received: from msgia.hs.uab.edu ([10.20.2.43]) by dmx.hs.uab.edu (Netscape Messaging Server 3.6) with ESMTP id AAA3D0E for ; Fri, 6 Dec 2002 11:08:02 -0600 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Fri, 06 Dec 2002 11:10:31 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Fri, 06 Dec 2002 11:10:22 -0600 From: "Stephen Jordan" To: Subject: 2100C C1 sn 069...help please Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA22488 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 06 Dec 2002 11:10:22 -0600 From: "Stephen Jordan" To: Subject: 2100C C1 sn 069...help please Content-Disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA22488 Sender: owner-linac-eng@plato.aristotle.net We have had a problem with our Clinac for about a week now: > Electron symmetry varies with gantry angle +/- 4% ; Output is constant. > No evidence of photon abnormalities. > MU2 creeps (4-6 mu) during no beam situations, occasionally shows same offset post-treatment. B15/16 linearity is okay. > I've not been able to reproduce the MU2 problem, so I had the techs rotate the collimator to 180 (as I would during testing). MU2 did not creep at that coll angle. I have a few questions re: these faults: 1) When Tx is complete or after the CAL signal, is there still signal from the Ion chambers to the integrator pcbs? What I'm asking is would it be possible to isolate the gantry from the console? 2) Varian told us at TM1 school that "Position steering coils are not servoed, nor monitored in Electron mode"...does that mean the PosR / PosT coils have no effect? 3) I ran numerous symmetry tests (All energies; photons are fine) last night using our tracker mounted to the collimator (every 45 degrees of gant rotation), and noticed that at opposing angles, the transverse ion chambers' numbers (the tracker data) would reverse....is this indicative of mechanical looseness of the scattering foils? (Hard to believe all of them would be loose) I am in a quandry right now, any help would be greatly appreciated! Steve Jordan UAB Rad Physics 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 06 22:47:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18KQJP-0006Lo-00; Fri, 06 Dec 2002 22:47:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B210C1105E6; Fri, 6 Dec 2002 22:46:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA13380 for linac-eng-list; Fri, 6 Dec 2002 15:08:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m07.mx.aol.com (imo-m07.mx.aol.com [64.12.136.162]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA13376 for ; Fri, 6 Dec 2002 15:08:30 -0600 (CST) From: GARRYANGEL@aol.com Received: from GARRYANGEL@aol.com by imo-m07.mx.aol.com (mail_out_v34.13.) id y.d.3d84002 (4116) for ; Fri, 6 Dec 2002 16:06:20 -0500 (EST) Message-ID: Date: Fri, 6 Dec 2002 16:06:20 EST Subject: CX-1159 THYRATRONS To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10636 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: GARRYANGEL@aol.com Date: Fri, 6 Dec 2002 16:06:20 EST Subject: CX-1159 THYRATRONS To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net Hi Everyone: It seems that there are no CX1159 's available (except maybe from the OEM's) and "EEV" (or it's new entity) cannot tell when any will be available. Has anyone tried the "Litton" replacement? And if so, how did it do?? Any information would be appreciated. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Dec 08 04:27:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Ks5u-0008TY-00; Sun, 08 Dec 2002 04:27:02 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8471C1105E8; Sun, 8 Dec 2002 04:26:11 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA08313 for linac-eng-list; Sat, 7 Dec 2002 21:00:24 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imo-m09.mx.aol.com (imo-m09.mx.aol.com [64.12.136.164]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA08309 for ; Sat, 7 Dec 2002 21:00:23 -0600 (CST) From: Mlaa@aol.com Received: from Mlaa@aol.com by imo-m09.mx.aol.com (mail_out_v34.13.) id y.189.12283c5c (4418) for ; Sat, 7 Dec 2002 21:59:51 -0500 (EST) Message-ID: <189.12283c5c.2b240fa6@aol.com> Date: Sat, 7 Dec 2002 21:59:50 EST Subject: 2100c for sale To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_189.12283c5c.2b240fa6_boundary" X-Mailer: AOL 8.0 for Windows US sub 230 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Date: Sat, 7 Dec 2002 21:59:50 EST Subject: 2100c for sale To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net --part1_189.12283c5c.2b240fa6_boundary Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Subj: 2100c=A0 =20 Date: 12/4/2002 12:59:41 PM Pacific Standard Time=20 From: Mlaa =20 To: linac-eng@plato.aristot= le.net =20 =20 Hello to everyone on the list, =A0=A0=A0=A0=A0=A0 I am looking for (tentative request) a 2100c with dual in= dependant=20 jaws that has 6 and 10 photon energies.=A0 The availability time would be in= a=20 6 month time frame.=A0 Any information can be emailed to me.=A0 Thanks in ad= vance=20 and happy holidays to all. Mike Liddicote Accelerator Associates (909) 279-9853 MLAA @aol.com --part1_189.12283c5c.2b240fa6_boundary Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Subj: 2100c=A0
    Date: 12/4/2002 12:59:41 PM Pacific Standard Time
    From: Mlaa
    To: linac-eng@plato.aristot= le.net



    Hello to everyone on the list,

    =A0=A0=A0=A0=A0=A0 I am looking for (tentative request) a 2100c with dual in= dependant jaws that has 6 and 10 photon energies.=A0 The availability time w= ould be in a 6 month time frame.=A0 Any information can be emailed to me.= =A0 Thanks in advance and happy holidays to all.

    Mike Liddicote
    Accelerator Associates
    (909) 279-9853
    MLAA @aol.com
     --part1_189.12283c5c.2b240fa6_boundary-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 09 14:44:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18LOCc-0008Li-00; Mon, 09 Dec 2002 14:44:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6D3381112F1; Mon, 9 Dec 2002 14:42:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA03578 for linac-eng-list; Mon, 9 Dec 2002 07:15:09 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ehc-lmc-mail1.exempla.org ([170.188.23.35]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA03574 for ; Mon, 9 Dec 2002 07:15:08 -0600 (CST) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: Re: CX-1159 THYRATRONS Date: Mon, 9 Dec 2002 06:14:00 -0700 Message-ID: <463B4F87C8217E4A8AEEC10E6FBA057929DBD5@ehc-lmc-mail1.exempla.org> Thread-Topic: Re: CX-1159 THYRATRONS Thread-Index: AcKfhOjpekvqwYzxQj6L/ezVm4zfuw== From: "Lollar, James" To: , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA03575 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: Re: CX-1159 THYRATRONS Date: Mon, 9 Dec 2002 06:14:00 -0700 Thread-Topic: Re: CX-1159 THYRATRONS Thread-Index: AcKfhOjpekvqwYzxQj6L/ezVm4zfuw== From: "Lollar, James" To: , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA03575 Sender: owner-linac-eng@plato.aristotle.net Gary, Just purchase CX1159 (EEV ) from Richardson Electronics last week. 1-800-348-5580. They also carry the National Brand but I have not given them a try. They cost about 1/3 less than the EEV. I have never tried the Litton brand. >>> GARRYANGEL@aol.com 12/06/02 02:06PM >>> Hi Everyone: It seems that there are no CX1159 's available (except maybe from the OEM's) and "EEV" (or it's new entity) cannot tell when any will be available. Has anyone tried the "Litton" replacement? And if so, how did it do?? Any information would be appreciated. Garry 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 11 14:58:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18M7No-0008Jf-00; Wed, 11 Dec 2002 14:58:40 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6FEBF1112F4; Wed, 11 Dec 2002 14:55:53 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA18104 for linac-eng-list; Wed, 11 Dec 2002 07:23:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from vgregion.se (ryggsim.vgregion.se [212.181.62.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA18100 for ; Wed, 11 Dec 2002 07:23:29 -0600 (CST) From: artur.klamer@vgregion.se Received: from vgregion.se (localhost [127.0.0.1]) by vgregion.se (8.12.5/8.12.5) with ESMTP id gBBDMvZR027460 for ; Wed, 11 Dec 2002 14:22:57 +0100 (MET) Received: from mailsu.vgregion.se (mailsu [146.21.63.24]) by vgregion.se (8.12.5/8.12.5) with ESMTP id gBBDMmLY027431 for ; Wed, 11 Dec 2002 14:22:53 +0100 (MET) To: Linac-eng@plato.aristotle.net Subject: Protection door. X-Mailer: Lotus Notes Release 5.0.4a July 24, 2000 Message-ID: Date: Wed, 11 Dec 2002 14:22:47 +0100 X-MIMETrack: Serialize by Router on mailsu.vgregion.se/vgregion(Release 5.0.11 |July 24, 2002) at 2002-12-11 14:22:53, Serialize complete at 2002-12-11 14:22:53 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_alternative 004A5084C1256C8C_=" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: artur.klamer@vgregion.se To: Linac-eng@plato.aristotle.net Subject: Protection door. Date: Wed, 11 Dec 2002 14:22:47 +0100 X-MIMETrack: Serialize by Router on mailsu.vgregion.se/vgregion(Release 5.0.11 |July 24, 2002) at 2002-12-11 14:22:53, Serialize complete at 2002-12-11 14:22:53 Sender: owner-linac-eng@plato.aristotle.net This is a multipart message in MIME format. --=_alternative 004A5084C1256C8C_= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Gentlemen, I need your help.We are in a planning stage of new bunkers for 15--25MV.=20 Vi are discussing bunkers without mazes or short mazes and with big protection door at the entrance that will=20 manage radiation protection 15--25MV. Do you have any experience of these kinds of doors? Their=20 function,service,security and price? I would appreciate if you could send me a simple drawing of a treatment room. I would be very grateful for your answer.=20 Artur Klamer Sahlgrenska Universitetssjukhuset MFT-Terapeutisk Radiofysik Gula str=E5ket 4 413 45 G=F6teborg Sweden Tel.+46 31 342 1000 :7467 Artur.Klamer@vgregion.se --=_alternative 004A5084C1256C8C_= Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Gentlemen,
    I need your help.We are in a plannin= g stage of new bunkers for 15--25MV. Vi are discussing bunkers without maze= s
    or short mazes and with big protecti= on door at the entrance that will manage radiation protection 15--25MV.
    Do you have any experience of these = kinds of doors? Their function,service,security and price? I would apprecia= te
    if you could send me a simple drawin= g of a treatment room.
    I would be very grateful for your an= swer.  

    Artur Klamer
    Sahlgrenska Universitetssjukhuset
    MFT-Terapeutisk Radiofysik
    Gula str=E5ket  4
    413 45 G=F6teborg
    Sweden

    Tel.+46 31 342 1000  :7467
    Artur.Klamer@vgregion.se     --=_alternative 004A5084C1256C8C_=-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 11 17:22:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18M9d3-0001RX-00; Wed, 11 Dec 2002 17:22:33 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id B34CF1112F4; Wed, 11 Dec 2002 17:19:43 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA20862 for linac-eng-list; Wed, 11 Dec 2002 09:55:10 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA20858 for ; Wed, 11 Dec 2002 09:55:08 -0600 (CST) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Wed, 11 Dec 2002 08:54:37 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Date: Wed, 11 Dec 2002 08:54:07 -0700 From: "Robert Wood" To: , Subject: Pouring a base frame (Varian 21EX) Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=_500C97AD.09680EFC" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Wed, 11 Dec 2002 08:54:07 -0700 From: "Robert Wood" To: , Subject: Pouring a base frame (Varian 21EX) Sender: owner-linac-eng@plato.aristotle.net This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=_500C97AD.09680EFC Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Does anyone know what the concrete mix is for pouring the grout around a = base frame when installing an Accelerator. --=_500C97AD.09680EFC Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Does anyone know what the concrete mix is for pouring the grout = around a=20 base frame when installing an Accelerator.     --=_500C97AD.09680EFC-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 11 18:46:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MAwR-0001i6-00; Wed, 11 Dec 2002 18:46:39 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3CB481112F4 for ; Wed, 11 Dec 2002 18:43:48 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KPWZB4GB8W8X4413@med.uu.nl> for kok@radth.med.uu.nl; Wed, 11 Dec 2002 18:40:57 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KPWZB0REPG8X3GQ4@med.uu.nl> for kok@radth.med.uu.nl; Wed, 11 Dec 2002 18:40:53 +0100 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA20862 for linac-eng-list; Wed, 11 Dec 2002 09:55:10 -0600 (CST) Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA20858 for ; Wed, 11 Dec 2002 09:55:08 -0600 (CST) Received: from SL_DOM-Message_Server by gwia.slrmc.org with Novell_GroupWise; Wed, 11 Dec 2002 08:54:37 -0700 Date: Wed, 11 Dec 2002 08:54:07 -0700 From: Robert Wood Subject: Pouring a base frame (Varian 21EX) Sender: owner-linac-eng@plato.aristotle.net To: Linac-eng@plato.aristotle.net, artur.klamer@vgregion.se Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 5.5.6.1 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_LeUtSF9r2sSrmOyZ44j9Dg)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Wed, 11 Dec 2002 08:54:07 -0700 From: Robert Wood Subject: Pouring a base frame (Varian 21EX) Sender: owner-linac-eng@plato.aristotle.net To: Linac-eng@plato.aristotle.net, artur.klamer@vgregion.se X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --Boundary_(ID_LeUtSF9r2sSrmOyZ44j9Dg) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable Does anyone know what the concrete mix is for pouring the grout around a = base frame when installing an Accelerator. --Boundary_(ID_LeUtSF9r2sSrmOyZ44j9Dg) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable Does anyone know what the concrete mix is for pouring the grout = around a=20 base frame when installing an Accelerator.     --Boundary_(ID_LeUtSF9r2sSrmOyZ44j9Dg)-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 11 19:49:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MBuq-0001uu-00; Wed, 11 Dec 2002 19:49:04 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 62D751112F4; Wed, 11 Dec 2002 19:46:08 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA23695 for linac-eng-list; Wed, 11 Dec 2002 12:17:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id MAA23691 for ; Wed, 11 Dec 2002 12:17:30 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Wed, 11 Dec 2002 11:38:51 -0600 Received: by corpexcon01.corp.medcity.net with Internet Mail Service (5.5.2653.19) id ; Wed, 11 Dec 2002 11:38:37 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8665C@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'Robert Wood'" Cc: "Linac list (E-mail)" Subject: RE: Pouring a base frame (Varian 21EX) Date: Wed, 11 Dec 2002 11:32:19 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-27280704-9449-4e35-912f-c02900fecaf6" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'Robert Wood'" Cc: "Linac list (E-mail)" Subject: RE: Pouring a base frame (Varian 21EX) Date: Wed, 11 Dec 2002 11:32:19 -0600 Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------=_NextPartTM-000-27280704-9449-4e35-912f-c02900fecaf6 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2A13B.41C13A40" ------_=_NextPart_001_01C2A13B.41C13A40 Content-Type: text/plain; charset="iso-8859-1" Robert, I believe it's called pea grout. The rock in the mix is about the size of peas. I'm not quite sure of how many bags of cement there are in the mix though, i.e.4 or 5 bag mix . Obviously the grout needs to be strong enough to "keep the machine in place" but down the road 20 years or so you need to be able to jack it out. When we pulled out our 6/100 two + years ago the base frame was "grouted" in with regular cement, 3/4 stones and a hard mix. It was not fun. Varian is installing this machine I assume. There should be someone who is overseeing the install process that you could verify exactly what you should use. "Happy grouting" Mike T. > Does anyone know what the concrete mix is for pouring the grout around a base frame when installing an Accelerator. ------_=_NextPart_001_01C2A13B.41C13A40 Content-Type: text/html; charset="iso-8859-1"
    Robert,
     
    I believe it's called pea grout. The rock in the mix is about the size of peas. I'm not quite sure of how many bags of cement there are in the mix though, i.e.4 or 5 bag mix .
    Obviously the grout needs to be strong enough to "keep the machine in place" but down the road 20 years or so you need to be able to jack it out. When we pulled out our 6/100 two + years ago the base frame was "grouted" in with regular cement, 3/4 stones and a hard mix. It was not fun.
    Varian is installing this machine I assume. There should be someone who is overseeing the install process that you could verify exactly what you should use.
     
    "Happy grouting"
     
    Mike T.
     
     
     
     > Does anyone know what the concrete mix is for pouring the grout around a base frame when installing an Accelerator.
    ------_=_NextPart_001_01C2A13B.41C13A40-- ------=_NextPartTM-000-27280704-9449-4e35-912f-c02900fecaf6-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 11 21:01:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MD2j-00025i-00; Wed, 11 Dec 2002 21:01:17 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9A6651112F5; Wed, 11 Dec 2002 20:58:22 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA25290 for linac-eng-list; Wed, 11 Dec 2002 13:27:14 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA25286 for ; Wed, 11 Dec 2002 13:27:13 -0600 (CST) From: vortiz@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id NAA03312; Wed, 11 Dec 2002 13:23:27 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C8C.006A252C ; Wed, 11 Dec 2002 13:19:23 -0600 X-Lotus-FromDomain: MDACC To: artur.klamer@vgregion.se Cc: Linac-eng@plato.aristotle.net Message-ID: <86256C8C.006A22F8.00@utm-notesob1.mdacc.tmc.edu> Date: Wed, 11 Dec 2002 13:19:14 -0600 Subject: Re: Protection door. Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: vortiz@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: artur.klamer@vgregion.se Cc: Linac-eng@plato.aristotle.net Date: Wed, 11 Dec 2002 13:19:14 -0600 Subject: Re: Protection door. Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net My experience here in the US and some overseas installs I have done with them, Is to contact Nelco here in the United State There internet addres is http//www.nelco-usa.com and there local number in Houston is 713-675-3266 Their toll fre number is 800-635-2613 but I don't know if it will work from Sweden. Take care, Happy Holidays, Vince Ortiz 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 11 21:50:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MDnz-0002BS-00; Wed, 11 Dec 2002 21:50:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 9B6A01112F5; Wed, 11 Dec 2002 21:47:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA26763 for linac-eng-list; Wed, 11 Dec 2002 14:23:18 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from cartimail.carti.com (proxy.carti.com [65.66.64.157]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA26759 for ; Wed, 11 Dec 2002 14:23:16 -0600 (CST) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: RE: Pouring a base frame (Varian 21EX) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Wed, 11 Dec 2002 14:21:18 -0600 Message-ID: <456543C21489CA41BF1D6A22A721F5AA667DBD@cartimail.carti.com> Thread-Topic: Pouring a base frame (Varian 21EX) Thread-Index: AcKhM+3HXuOrssrcTSiTE+RXKeJSWAAHsEXQ From: "Jim Beaty" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA26760 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f content-class: urn:content-classes:message Subject: RE: Pouring a base frame (Varian 21EX) X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 Date: Wed, 11 Dec 2002 14:21:18 -0600 Thread-Topic: Pouring a base frame (Varian 21EX) Thread-Index: AcKhM+3HXuOrssrcTSiTE+RXKeJSWAAHsEXQ From: "Jim Beaty" To: X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA26760 Sender: owner-linac-eng@plato.aristotle.net Normal weight grout 147 lb/cu ft, 28 day strength of 2000 lb/sq in, 6" to 7" slump, 3/8" maximum pea gravel aggregate size. Provide a minimum seven days cure time prior to equipment installation. (From the 21EX IDP, Note 40.200) -----Original Message----- From: Robert Wood [mailto:woodr@slrmc.org] Sent: Wednesday, December 11, 2002 9:54 AM To: Linac-eng@plato.aristotle.net; artur.klamer@vgregion.se Subject: Pouring a base frame (Varian 21EX) Does anyone know what the concrete mix is for pouring the grout around a base frame when installing an Accelerator. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 12 03:33:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MJAR-0002bv-00; Thu, 12 Dec 2002 03:33:39 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id D19981112F5; Thu, 12 Dec 2002 03:30:30 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA04279 for linac-eng-list; Wed, 11 Dec 2002 20:03:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA04275 for ; Wed, 11 Dec 2002 20:03:28 -0600 (CST) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id OAA06384 for ; Thu, 12 Dec 2002 14:01:15 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Thu, 12 Dec 2002 14:58:09 -0600 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Thu, 12 Dec 2002 15:02:53 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Thu, 12 Dec 2002 15:02:43 +1300 From: "Dave Pinchin" To: Subject: Lasers Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Thu, 12 Dec 2002 15:02:43 +1300 From: "Dave Pinchin" To: Subject: Lasers Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net G'day, Just a quick question regarding the benefits of red vs green lasers. I can see benefits regarding skin colour, I have also heard of 'crispness' benefits. I have noticed that the green led varian pendants are easier to read than the older red led ones. Any comments ????? Have a good Christmas and a prosperous new year. I'll think about you all as I lie on the beach............. Dave. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 12 10:48:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MPxM-0004vN-00; Thu, 12 Dec 2002 10:48:36 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 616601112F7; Thu, 12 Dec 2002 10:45:21 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA10739 for linac-eng-list; Thu, 12 Dec 2002 03:15:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mphd-bsd.leeds.ac.uk (mphd-bsd.leeds.ac.uk [129.11.224.45]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA10734 for ; Thu, 12 Dec 2002 03:15:44 -0600 (CST) Received: from medphysics.leeds.ac.uk (mphd1 [129.11.224.65]) by mphd-bsd.leeds.ac.uk (8.12.1/8.11.6) with ESMTP id gBC9FdWZ042838 for ; Thu, 12 Dec 2002 09:15:44 GMT (envelope-from SJW@medphysics.leeds.ac.uk) Received: from MPHD1/SpoolDir by medphysics.leeds.ac.uk (Mercury 1.48); 12 Dec 02 09:15:43 +0000 GMT Received: from SpoolDir by MPHD1 (Mercury 1.48); 12 Dec 02 09:15:28 +0000 GMT From: "Steve Weston" To: Date: Thu, 12 Dec 2002 09:15:24 -0000 MIME-Version: 1.0 Subject: Re: Lasers Reply-To: sjw@mphd1.leeds.ac.uk Message-ID: <3DF853FA.32268.10381A@localhost> In-reply-to: X-mailer: Pegasus Mail for Windows (v4.02a) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-description: Mail message body Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Steve Weston" To: Date: Thu, 12 Dec 2002 09:15:24 -0000 Subject: Re: Lasers Reply-To: sjw@mphd1.leeds.ac.uk In-reply-to: Content-description: Mail message body Sender: owner-linac-eng@plato.aristotle.net The sensitivity of the eye to wavelength is not uniform and peaks about 550nm, which is in the green part of the spectrum. So for the same output power a green laser will appear brighter than a red laser. Steve ------------------------------------------------------------------ --- S.J.Weston, Phone: 0113 3924315 Dept.of Medical Physics, FAX: 0113 3924122 Cookridge Hospital, Leeds Teaching Hospitals Trust. LEEDS LS16 6QB UK ------------------------------------------------------------------ --- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 12 11:13:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MQLN-00059O-00; Thu, 12 Dec 2002 11:13:25 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 040C51112F7; Thu, 12 Dec 2002 11:10:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA11077 for linac-eng-list; Thu, 12 Dec 2002 03:42:03 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail8.nhs.uk (mail8.nhs.uk [213.120.235.86]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA11073 for ; Thu, 12 Dec 2002 03:42:01 -0600 (CST) Received: from [194.62.42.123] (helo=relayint2.nhs.uk) by mail8.nhs.uk with esmtp (Exim 4.10) id 18MPqU-0006Kf-00 for linac-eng@plato.aristotle.net; Thu, 12 Dec 2002 09:41:30 +0000 Received: from relay.nhs.uk (194.62.42.142) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3DD28BFA0047194F for linac-eng@plato.aristotle.net; Thu, 12 Dec 2002 09:41:30 +0000 Received: from smtp.koc.mtw-tr.nhs.uk (212.196.163.36) by relay.nhs.uk (Syntegra-2 6.5.026) id 3DEFA7370016F484; Thu, 12 Dec 2002 09:41:30 +0000 Received: from ns2.onc.koc.mtw-tr.nhs.uk (pat.koc.mtw-tr.nhs.uk [192.168.1.253]) by smtp.koc.mtw-tr.nhs.uk (8.11.6/8.11.6) with ESMTP id gBC9fUE29831; Thu, 12 Dec 2002 09:41:30 GMT Received: from ws135 (ws135.onc.koc.mtw-tr.nhs.uk [192.168.2.163]) by ns2.onc.koc.mtw-tr.nhs.uk (8.11.6/8.11.6) with SMTP id gBC9f4n03380; Thu, 12 Dec 2002 09:41:04 GMT From: "David Fenn" To: "'Dave Pinchin'" , Subject: RE: Lasers Date: Thu, 12 Dec 2002 09:41:17 -0000 Message-ID: <000501c2a1c2$9f36eee0$a302a8c0@onc.koc.mtwtr.nhs.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Importance: Normal In-Reply-To: Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "David Fenn" To: "'Dave Pinchin'" , Subject: RE: Lasers Date: Thu, 12 Dec 2002 09:41:17 -0000 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Importance: Normal In-Reply-To: Sender: owner-linac-eng@plato.aristotle.net It's all to do with the perception of vision of your eyes! most people have a greater perception of green than red and this seems to be even more pronounced when the light is monochromatic. Best regards David Fenn Kent Oncology Centre Maidstone UK -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Dave Pinchin Sent: 12 December 2002 02:03 To: linac-eng@plato.aristotle.net Subject: Lasers G'day, Just a quick question regarding the benefits of red vs green lasers. I can see benefits regarding skin colour, I have also heard of 'crispness' benefits. I have noticed that the green led varian pendants are easier to read than the older red led ones. Any comments ????? Have a good Christmas and a prosperous new year. I'll think about you all as I lie on the beach............. Dave. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 12 15:15:21 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MU7V-0007u9-00; Thu, 12 Dec 2002 15:15:21 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4A8711112F7; Thu, 12 Dec 2002 15:12:00 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA14263 for linac-eng-list; Thu, 12 Dec 2002 07:39:37 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from imf22bis.bellsouth.net (mail022.mail.bellsouth.net [205.152.58.62]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA14258 for ; Thu, 12 Dec 2002 07:39:35 -0600 (CST) Received: from nec ([65.80.14.6]) by imf22bis.bellsouth.net (InterMail vM.5.01.04.19 201-253-122-122-119-20020516) with SMTP id <20021212134022.IRMD26979.imf22bis.bellsouth.net@nec>; Thu, 12 Dec 2002 08:40:22 -0500 From: "Neil Johnston" To: "Dave Pinchin" , Subject: RE: Lasers Date: Thu, 12 Dec 2002 08:32:52 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-reply-to: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Neil Johnston" To: "Dave Pinchin" , Subject: RE: Lasers Date: Thu, 12 Dec 2002 08:32:52 -0500 X-Priority: 3 (Normal) X-MSMail-Priority: Normal In-reply-to: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Hi Guys, Just a couple of points on the green lasers. 1. 532 nm (green) is close to the middle of the visible spectrum so the Eye is more sensitive. (Some people say 7 X) Red being close to one end of the spectrum - people are more sensitive to being colour blind to red (even more so than the blue end - don't know why ask your Physicist) 2. The green lasers have less diffusion on skin - hence the crispness especially on darker complexions) A very Happy Christmas. Neil -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Dave Pinchin Sent: Wednesday, December 11, 2002 9:03 PM To: linac-eng@plato.aristotle.net Subject: Lasers G'day, Just a quick question regarding the benefits of red vs green lasers. I can see benefits regarding skin colour, I have also heard of 'crispness' benefits. I have noticed that the green led varian pendants are easier to read than the older red led ones. Any comments ????? Have a good Christmas and a prosperous new year. I'll think about you all as I lie on the beach............. Dave. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 12 16:11:31 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MUzr-0008V9-00; Thu, 12 Dec 2002 16:11:31 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BCD241112F7; Thu, 12 Dec 2002 16:08:07 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA16097 for linac-eng-list; Thu, 12 Dec 2002 08:41:19 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchvs2.medctr.ad.wfubmc.edu [152.11.200.74]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA16093 for ; Thu, 12 Dec 2002 08:41:17 -0600 (CST) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: Lasers Date: Thu, 12 Dec 2002 09:40:47 -0500 Message-ID: <9AEEF1FB6254224AA355ED285F84916503871F@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: Lasers Thread-Index: AcKhjqObE299W2a/R4+HAN2u0qTrdwAW0/rg From: "Tim Cullen" To: "Dave Pinchin" , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA16094 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: RE: Lasers Date: Thu, 12 Dec 2002 09:40:47 -0500 Thread-Topic: Lasers Thread-Index: AcKhjqObE299W2a/R4+HAN2u0qTrdwAW0/rg From: "Tim Cullen" To: "Dave Pinchin" , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA16094 Sender: owner-linac-eng@plato.aristotle.net Same to you Dave...but I gotta tell you, you're killing me with that beach talk. Sounds like a nice place, especially now that we are melting out of last weeks ice storm. When LAP laser did their presentation at the RSEA's initial meeting in Montreal, they mentioned what the other gentlemen have already. However it was my impression that the green had a shorter lifespan, most probably due to the fact it consumes 10W of power versus 1W on the red. Other than the power consumption, the only other differences were slight difference in size and weight. Specs are listed on their web page. Tim -----Original Message----- From: Dave Pinchin [mailto:Dave.Pinchin@cdhb.govt.nz] Sent: Wednesday, December 11, 2002 9:03 PM To: linac-eng@plato.aristotle.net Subject: Lasers G'day, Just a quick question regarding the benefits of red vs green lasers. I can see benefits regarding skin colour, I have also heard of 'crispness' benefits. I have noticed that the green led varian pendants are easier to read than the older red led ones. Any comments ????? Have a good Christmas and a prosperous new year. I'll think about you all as I lie on the beach............. Dave. ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 13 17:13:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MsRr-0000LR-00; Fri, 13 Dec 2002 17:13:59 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7789D1112F2; Fri, 13 Dec 2002 17:10:01 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA08027 for linac-eng-list; Fri, 13 Dec 2002 09:26:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl ([212.115.200.190]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA08023 for ; Fri, 13 Dec 2002 09:26:29 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Fri, 13 Dec 2002 16:26:27 +0100 Message-ID: To: linac-eng@plato.aristotle.net Subject: EPROM Varian side panel Date: Fri, 13 Dec 2002 16:26:26 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato.aristotle.net Subject: EPROM Varian side panel Date: Fri, 13 Dec 2002 16:26:26 +0100 Sender: owner-linac-eng@plato.aristotle.net Hi folks, We are looking for a EPROM that holds the program for the Varian C.3 sidepanels. Last year we bought this part from Varian (p/n 01 101647 04, about $500,-) but when we ordered it last month we had to buy a complete board ($ 1250 - 1650) The chip is a default 44 way PLCC socket MC68705 microcontroller/EPROM. Any ideas? regards, Keesjan de Bruijne Biomedical Engineer Ziekenhuis Walcheren Vlissingen, the Netherlands dep. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 13 18:49:44 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MtwW-0000on-00; Fri, 13 Dec 2002 18:49:44 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 70F681112F2; Fri, 13 Dec 2002 18:45:44 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA15705 for linac-eng-list; Fri, 13 Dec 2002 11:23:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from titan.lhsc.on.ca (titan.lhsc.on.ca [142.158.2.20]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA15666 for ; Fri, 13 Dec 2002 11:23:25 -0600 (CST) From: Randy.McVittie@lrcc.on.ca Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by titan.lhsc.on.ca (8.11.6+Sun/8.10.2) with SMTP id gBDHMqC11422; Fri, 13 Dec 2002 12:22:52 -0500 (EST) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256C8E.005F3395 ; Fri, 13 Dec 2002 12:19:51 -0500 X-Lotus-FromDomain: LRCC To: CJ.de.Bruijne@walcheren.ziekenhuis.nl Cc: linac-eng@plato.aristotle.net Message-ID: <85256C8E.005F32B0.00@mail.lrcc.on.ca> Date: Fri, 13 Dec 2002 12:19:48 -0500 Subject: Re: EPROM Varian side panel Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca X-Lotus-FromDomain: LRCC To: CJ.de.Bruijne@walcheren.ziekenhuis.nl Cc: linac-eng@plato.aristotle.net Date: Fri, 13 Dec 2002 12:19:48 -0500 Subject: Re: EPROM Varian side panel Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net I guess Varian doesn't want to sell just the chips anymore. There is not much we can do but hand over the cash. Randy McVittie 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 13 19:36:00 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18MufI-0000sN-00; Fri, 13 Dec 2002 19:36:00 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6A57F1112F2; Fri, 13 Dec 2002 19:31:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA26302 for linac-eng-list; Fri, 13 Dec 2002 12:10:05 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail2.vcu.edu (mail2.vcu.edu [128.172.1.135]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA26296 for ; Fri, 13 Dec 2002 12:10:03 -0600 (CST) Received: from hsc.vcu.edu ([128.172.80.188]) by mail2.vcu.edu (8.12.0/8.11.3) with ESMTP id gBDIA1t4453872 for ; Fri, 13 Dec 2002 13:10:01 -0500 Message-ID: <3DFA227C.9060201@hsc.vcu.edu> Date: Fri, 13 Dec 2002 13:10:04 -0500 From: "Christopher L. Bartee" User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "linac-eng@plato.aristotle.net" Subject: Beam on lights Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 13 Dec 2002 13:10:04 -0500 From: "Christopher L. Bartee" X-Accept-Language: en-us, en To: "linac-eng@plato.aristotle.net" Subject: Beam on lights Sender: owner-linac-eng@plato.aristotle.net Does anyone know of a good supplier for "beam on" lights. I have a flourescent one that is causing problems with the machine. I would like to replace it with an incandescent one. Chris 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Dec 14 22:10:50 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18NJYg-00031u-00; Sat, 14 Dec 2002 22:10:50 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4F5911112F1; Sat, 14 Dec 2002 22:06:12 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA19081 for linac-eng-list; Sat, 14 Dec 2002 14:33:28 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from dalwhinnie.chhlth.govt.nz (chlfw.chhlth.govt.nz [203.163.70.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA19077 for ; Sat, 14 Dec 2002 14:33:21 -0600 (CST) Received: from Mailsweeper.chhlth.govt.nz (mailsweeper.chhlth.govt.nz [159.117.16.14]) by dalwhinnie.chhlth.govt.nz (8.9.3/8.9.3) with ESMTP id IAA17424 for ; Sun, 15 Dec 2002 08:30:49 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ (unverified) by Mailsweeper.chhlth.govt.nz (Content Technologies SMTPRS 4.2.5) with ESMTP id for ; Sun, 15 Dec 2002 09:27:47 -0600 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Sun, 15 Dec 2002 09:32:43 +1300 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Sun, 15 Dec 2002 09:32:35 +1300 From: "Dave Pinchin" To: , Subject: Re: EPROM Varian side panel Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 15 Dec 2002 09:32:35 +1300 From: "Dave Pinchin" To: , Subject: Re: EPROM Varian side panel Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net G'day, I cut my teeth on the 6800 family, I like the product line. Typically these are a uP, ram, rom (mask programable, eerom or eprom) and some I/O. They are readily available from your local motorola people. There are usually functionally identical models with various types of rom. First shot, I would try is reseating the chip, 9/10 this is the trouble. Dust down the contacts. Second shot is. Whip the one out of the other side panel and take it to your local Polytech, University or even motorola agent and have them copy it into a fresh one. (Warning: I am rather hazy on copyright / patent laws for your country. Being that it is software and, after all, you are only taking a backup copy, I guess there is no problem.) All up you'll probably be up for $20 and a 6 pack of beer. Just the thing to lie on the beech with !!!!! :D >>> 14/12/02 04:26:26 >>> Hi folks, We are looking for a EPROM that holds the program for the Varian C.3 sidepanels. Last year we bought this part from Varian (p/n 01 101647 04, about $500,-) but when we ordered it last month we had to buy a complete board ($ 1250 - 1650) The chip is a default 44 way PLCC socket MC68705 microcontroller/EPROM. Any ideas? regards, Keesjan de Bruijne Biomedical Engineer Ziekenhuis Walcheren Vlissingen, the Netherlands dep. DIA cj.de.bruijne@walcheren.ziekenhuis.nl ********************************************************************** ** This email and attachments have been scanned for content and viruses and is believed to be clean ** This email or attachments may contain confidential or legally privileged information intended for the sole use of the addressee(s). Any use, redistribution, disclosure, or reproduction of this message, except as intended, is prohibited. If you received this email in error, please notify the sender and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Canterbury District Health Board ********************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 16 17:28:20 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Ny6N-0003fF-00; Mon, 16 Dec 2002 17:28:20 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3887011131E; Mon, 16 Dec 2002 17:22:35 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA21164 for linac-eng-list; Mon, 16 Dec 2002 09:52:58 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA21160 for ; Mon, 16 Dec 2002 09:52:56 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Mon, 16 Dec 2002 10:58:54 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C579@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Mon, 16 Dec 2002 10:58:47 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Mon, 16 Dec 2002 10:58:47 -0500 Sender: owner-linac-eng@plato.aristotle.net Hello All, Have any of you out there had the oppertunity to use an RF Driver from Pro-Com, Inc. I have just recieved an advertisement from them and there prices seem to be good, the driver seems to be compatible. Would appriciate any input as to their reliability. Thank You Bill Hughes Regional Cancer Center Erie, Pa. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 16 22:53:39 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18O3BD-0004Ly-00; Mon, 16 Dec 2002 22:53:39 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id C19051105E0; Mon, 16 Dec 2002 22:47:52 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA28133 for linac-eng-list; Mon, 16 Dec 2002 15:16:25 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep01.biz.rr.com (fep01.biz.rr.com [24.30.200.200]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA28129 for ; Mon, 16 Dec 2002 15:16:23 -0600 (CST) Received: from pent4 ([24.174.72.124]) by fep01.biz.rr.com with ESMTP id <20021216211623.YYP24101.fep01.biz.rr.com@pent4>; Mon, 16 Dec 2002 16:16:23 -0500 From: "Thomas McCausland" To: "Hughes, William H." , "'linac-eng@plato.aristotle.net'" Date: Mon, 16 Dec 2002 15:16:16 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Reply-To: acceltek@acceltekservice.com Message-ID: <3DFDEE40.1511.223822@localhost> In-reply-to: <1082075133C0D511AAC8000255F0072924C579@beatrice.trcc.org> X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: "Hughes, William H." , "'linac-eng@plato.aristotle.net'" Date: Mon, 16 Dec 2002 15:16:16 -0600 Subject: Re: Reply-To: acceltek@acceltekservice.com In-reply-to: <1082075133C0D511AAC8000255F0072924C579@beatrice.trcc.org> Sender: owner-linac-eng@plato.aristotle.net From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date sent: Mon, 16 Dec 2002 10:58:47 -0500 > Hello All, Have any of you out there had the oppertunity to use an RF > Driver from Pro-Com, Inc. I have just recieved an advertisement from them > and there prices seem to be good, the driver seems to be compatible. Would > appriciate any input as to their reliability. > > Thank You > > Bill Hughes > Regional Cancer Center > Erie, Pa. > Weve had pretty good luck with them. The few times we have had problems with them, they have sent us a loaner to keep the customer up while they where checking things out on the inop one. We have one for sale for a varian by the way. Purchased it from a customer, sent it to Procomm to be checked out, and has not been out of the box since. Thomas W. McCausland AccelTek Inc. 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 16 23:56:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18O4A9-0004S1-00; Mon, 16 Dec 2002 23:56:37 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 27AA21105E3; Mon, 16 Dec 2002 23:50:49 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA01821 for linac-eng-list; Mon, 16 Dec 2002 16:31:45 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHCLUSTER (mailout.wth.org [216.79.64.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA01817 for ; Mon, 16 Dec 2002 16:31:43 -0600 (CST) Received: by EXCHCLUSTER with Internet Mail Service (5.5.2656.59) id ; Mon, 16 Dec 2002 15:02:17 -0600 Message-ID: From: "Turner, Guy" To: "'Hughes, William H.'" , "'linac-eng@plato.aristotle.net'" Subject: Varian Clinacs: Pro-Com RF Drivers Date: Mon, 16 Dec 2002 15:02:17 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2656.59) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Turner, Guy" To: "'Hughes, William H.'" , "'linac-eng@plato.aristotle.net'" Subject: Varian Clinacs: Pro-Com RF Drivers Date: Mon, 16 Dec 2002 15:02:17 -0600 Sender: owner-linac-eng@plato.aristotle.net I have used them in the past and would highly recommend them. Guy -----Original Message----- From: Hughes, William H. [mailto:WHughes@trcc.org] Sent: Monday, December 16, 2002 9:59 AM To: 'linac-eng@plato.aristotle.net' Subject: Hello All, Have any of you out there had the oppertunity to use an RF Driver from Pro-Com, Inc. I have just recieved an advertisement from them and there prices seem to be good, the driver seems to be compatible. Would appriciate any input as to their reliability. Thank You Bill Hughes Regional Cancer Center Erie, Pa. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 17 13:49:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18OHA4-0000zN-00; Tue, 17 Dec 2002 13:49:24 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 23A4D1105F0; Tue, 17 Dec 2002 13:43:16 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA12743 for linac-eng-list; Tue, 17 Dec 2002 06:17:49 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from beatrice.trcc.org (regionalcancercent-gw0.cust.stargate.net [208.166.69.209]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA12739 for ; Tue, 17 Dec 2002 06:17:47 -0600 (CST) Received: by beatrice.trcc.org with Internet Mail Service (5.5.2653.19) id ; Tue, 17 Dec 2002 07:23:46 -0500 Message-ID: <1082075133C0D511AAC8000255F0072924C57D@beatrice.trcc.org> From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Tue, 17 Dec 2002 07:23:43 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Hughes, William H." To: "'linac-eng@plato.aristotle.net'" Date: Tue, 17 Dec 2002 07:23:43 -0500 Sender: owner-linac-eng@plato.aristotle.net Thanks to all who have responded about the Pro-Com RF Drivers. Everything I heard was positive. Bill Hughes Regional Cancer Center Erie, Pa. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 17 17:15:23 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18OKNP-0002un-00; Tue, 17 Dec 2002 17:15:23 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AA20F1105F2; Tue, 17 Dec 2002 17:09:10 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA16130 for linac-eng-list; Tue, 17 Dec 2002 09:35:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ulva.abel.net.uk (ulva.abel.net.uk [195.72.113.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA16125 for ; Tue, 17 Dec 2002 09:35:11 -0600 (CST) Received: from oemcomputer (host213-1-19-229.webport.bt.net [213.1.19.229]) by ulva.abel.net.uk (Postfix) with SMTP id 8E6AC1DA2BB for ; Tue, 17 Dec 2002 15:23:37 +0000 (GMT) Message-ID: <001f01c2a5df$d8b92ea0$4469fea9@oemcomputer> From: "Radiotherapy Physics - RSH" To: "'linac-eng mailing list'" Subject: Free PTW Diamentor & Ion Chamber Date: Tue, 17 Dec 2002 15:20:33 -0000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01C2A5DF.D7E081E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapy Physics - RSH" To: "'linac-eng mailing list'" Subject: Free PTW Diamentor & Ion Chamber Date: Tue, 17 Dec 2002 15:20:33 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_001C_01C2A5DF.D7E081E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi List The above item was recovered from our scrap Siemens Stabilipan Unit and = is free to go to a good home or it is going in the bin. It was working. Must collect, but I will package it up if required. Thanks John Macmillan Radiotherapy Physics Royal Shrewsbury Hospital UK ------=_NextPart_000_001C_01C2A5DF.D7E081E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi List
     
    The above item was recovered from our scrap Siemens = Stabilipan=20 Unit and is free to go to a good home or it is going in the = bin.
    It was working.
    Must collect, but I will package it up if=20 required.
     
    Thanks
     
    John Macmillan
    Radiotherapy = Physics
    Royal=20 Shrewsbury Hospital
    UK
    ------=_NextPart_000_001C_01C2A5DF.D7E081E0-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 18 03:52:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18OUJs-0003vN-00; Wed, 18 Dec 2002 03:52:24 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id CFC1C1105F1; Wed, 18 Dec 2002 03:45:55 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA00582 for linac-eng-list; Tue, 17 Dec 2002 20:09:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.iinet.net.au (mail-04.iinet.net.au [203.59.3.36]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id UAA00578 for ; Tue, 17 Dec 2002 20:09:33 -0600 (CST) From: procbms@opera.iinet.net.au Received: (qmail 31670 invoked from network); 18 Dec 2002 02:04:56 -0000 Received: from unknown (HELO Service1) (203.59.8.137) by mail.iinet.net.au with SMTP; 18 Dec 2002 02:04:56 -0000 Date: Wed, 18 Dec 2002 10:05:37 +0800 To: Subject: Employment in Perth Australia Message-Id: <20021218100537.7fa6893e.procbms@opera.iinet.net.au> Organization: Perth Radiation Oncology Centre X-Mailer: Sylpheed version 0.7.2claws2 (GTK+ 1.2.10; i386-debian-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: procbms@opera.iinet.net.au Date: Wed, 18 Dec 2002 10:05:37 +0800 To: Subject: Employment in Perth Australia Organization: Perth Radiation Oncology Centre Sender: owner-linac-eng@plato.aristotle.net Hi all we are chasing expressions of interest for a linac engineering position which will be coming available towards the middle of 2003. Perth Radiation Oncology Centre has two sites operating 5 linacs. Our Wembley site is undergoing buildings redevelopment in the new year and an equipment replacement program is starting on top of the site redevelopment. We will need an additional engineering staff member to assist with the replacement program and afterwards for maintenance. Linac experience is essential with Elekta familiarity an advantage. Australian permanent residency status will be a requirement for the position. Please email your interest with a short summary of your experience or a complete resume if desired. Kindest Regards and a very Merry Christmas. -- Ron Kimber Radiotherapy Service Engineer Perth Radiation Oncology Centre 24 Salvado Rd Wembley WA 6014 AUSTRALIA Phone: 61 (0) 8 9381 5655 Mobile: 041 993 7776 Fax:61 (0) 8 9381 4364 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 18 18:46:17 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18OiGv-0002nU-00; Wed, 18 Dec 2002 18:46:17 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6BC1F1112FA; Wed, 18 Dec 2002 18:39:24 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA12363 for linac-eng-list; Wed, 18 Dec 2002 11:01:17 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from cyborg.toptions.com (oh-newark1b-86.nwrkoh.adelphia.net [24.53.21.86]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA12359 for ; Wed, 18 Dec 2002 11:01:15 -0600 (CST) Subject: Millennium MLC flex circuits Date: Wed, 18 Dec 2002 11:57:22 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Thread-Topic: Millennium MLC flex circuits X-MimeOLE: Produced By Microsoft Exchange V6.0.4417.0 thread-index: AcKmtojEgBxY7YXGT2+iFzr7UA1pYA== Content-Class: urn:content-classes:message From: "Steve Andrews" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA12360 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Subject: Millennium MLC flex circuits Date: Wed, 18 Dec 2002 11:57:22 -0500 Thread-Topic: Millennium MLC flex circuits X-MimeOLE: Produced By Microsoft Exchange V6.0.4417.0 thread-index: AcKmtojEgBxY7YXGT2+iFzr7UA1pYA== Content-Class: urn:content-classes:message From: "Steve Andrews" To: X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id LAA12360 Sender: owner-linac-eng@plato.aristotle.net Hello All, Has anyone experienced a failure of the flexible PCB in a Millennium MLC? Thank You Steve Andrews Technical Options, Inc. 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 18 19:16:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Oijw-0002qU-00; Wed, 18 Dec 2002 19:16:16 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id EC2BA1112FA; Wed, 18 Dec 2002 19:09:26 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA12982 for linac-eng-list; Wed, 18 Dec 2002 11:37:18 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ulva.abel.net.uk (ulva.abel.net.uk [195.72.113.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA12978 for ; Wed, 18 Dec 2002 11:37:16 -0600 (CST) Received: from oemcomputer (host62-7-160-84.webport.bt.net [62.7.160.84]) by ulva.abel.net.uk (Postfix) with SMTP id 966CE1DA6ED for ; Wed, 18 Dec 2002 17:31:00 +0000 (GMT) Message-ID: <003a01c2a6ba$ce5b1a00$4469fea9@oemcomputer> From: "Radiotherapy Physics - RSH" To: "'linac-eng mailing list'" Subject: Re: PTW Diamentor + Ion Chamber Date: Wed, 18 Dec 2002 17:23:30 -0000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0023_01C2A6BA.2F501320" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Radiotherapy Physics - RSH" To: "'linac-eng mailing list'" Subject: Re: PTW Diamentor + Ion Chamber Date: Wed, 18 Dec 2002 17:23:30 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-linac-eng@plato.aristotle.net This is a multi-part message in MIME format. ------=_NextPart_000_0023_01C2A6BA.2F501320 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi List Just to let you know, I have found a home for the above item. Thanks for your help. John Macmillan Radiotherapy Physics Royal Shrewsbury Hospital UK ------=_NextPart_000_0023_01C2A6BA.2F501320 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Hi List
     
    Just to let you know, I have found a home for the = above=20 item.
     
    Thanks for your help.
     
    John Macmillan
    Radiotherapy = Physics
    Royal=20 Shrewsbury Hospital
    UK
    ------=_NextPart_000_0023_01C2A6BA.2F501320-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 18 23:12:58 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18OmR0-000394-00; Wed, 18 Dec 2002 23:12:58 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 68F701112FA; Wed, 18 Dec 2002 23:06:03 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA17846 for linac-eng-list; Wed, 18 Dec 2002 15:31:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA17842 for ; Wed, 18 Dec 2002 15:31:24 -0600 (CST) Received: from 165.214.16.65 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Wed, 18 Dec 2002 13:29:32 -0600 Received: by corpexcon01.corp.medcity.net with Internet Mail Service (5.5.2653.19) id ; Wed, 18 Dec 2002 13:29:19 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8665E@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'Steve Andrews'" Cc: "Linac list (E-mail)" Subject: RE: Millennium MLC flex circuits Date: Wed, 18 Dec 2002 13:27:54 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'Steve Andrews'" Cc: "Linac list (E-mail)" Subject: RE: Millennium MLC flex circuits Date: Wed, 18 Dec 2002 13:27:54 -0600 Sender: owner-linac-eng@plato.aristotle.net Steve, I believe you are talking about the MLC motor interconnect pcb. Yes, I have replaced the Side A pcb. It failed after 1 1/2 years of use. Intermittent problem only with carriage travel in. Carriage would stop before reaching position. Leafs were not affected. I suspected the cause was due to the flex part rubbing against the cable connected to the secondary feedback pcb slightly twisting the flex portion as the carriage moved in. I re-routed the sfb cable when I install the new "flex" pcb. Mike T. Rapides Cancer Center -----Original Message----- From: Steve Andrews [mailto:steveandrews@toptions.com] Sent: Wednesday, December 18, 2002 10:57 AM To: linac-eng@plato.aristotle.net Subject: Millennium MLC flex circuits Hello All, Has anyone experienced a failure of the flexible PCB in a Millennium MLC? Thank You Steve Andrews Technical Options, Inc. 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 19 15:17:38 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18P1UY-0004yC-00; Thu, 19 Dec 2002 15:17:38 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BFCA21112FA; Thu, 19 Dec 2002 15:10:20 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA03007 for linac-eng-list; Thu, 19 Dec 2002 07:39:13 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02987 for ; Thu, 19 Dec 2002 07:39:11 -0600 (CST) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Thu, 19 Dec 2002 09:44:59 -0400 Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: 2100C/D Temp Probe Part # Date: Thu, 19 Dec 2002 09:38:45 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: 2100C/D Temp Probe Part # Date: Thu, 19 Dec 2002 09:38:45 -0400 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Hi Group I am looking at getting a spare HE internal temperature probe. Does anyone have a manufacture & part number for Varian part number 36-200000 from the Temp Probe Assy. #892146. Merry Christmas & Happy New Year to all. Greg __________________________________________ Greg MacKinnon, C.E.T. Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George Street Sydney, Nova Scotia, Canada B1P 1P3 tel: (902) 567-8076 fax: (902) 567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 19 16:59:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18P34n-0006FL-00; Thu, 19 Dec 2002 16:59:09 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 6849B1112F7 for ; Thu, 19 Dec 2002 16:51:50 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KQ81V8N4748X8S2M@med.uu.nl> for kok@radth.med.uu.nl; Thu, 19 Dec 2002 16:53:10 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KQ81V4CHXM8XBAE7@med.uu.nl> for kok@radth.med.uu.nl; Thu, 19 Dec 2002 16:53:05 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA03007 for linac-eng-list; Thu, 19 Dec 2002 07:39:13 -0600 (CST) Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA02987 for ; Thu, 19 Dec 2002 07:39:11 -0600 (CST) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Thu, 19 Dec 2002 09:44:59 -0400 Date: Thu, 19 Dec 2002 09:38:45 -0400 From: Greg MacKinnon Subject: 2100C/D Temp Probe Part # Sender: owner-linac-eng@plato.aristotle.net To: LinacEng Reply-To: mackinnongreg@cbdha.nshealth.ca Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Thu, 19 Dec 2002 09:38:45 -0400 From: Greg MacKinnon Subject: 2100C/D Temp Probe Part # Sender: owner-linac-eng@plato.aristotle.net To: LinacEng Reply-To: mackinnongreg@cbdha.nshealth.ca X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hi Group I am looking at getting a spare HE internal temperature probe. Does anyone have a manufacture & part number for Varian part number 36-200000 from the Temp Probe Assy. #892146. Merry Christmas & Happy New Year to all. Greg __________________________________________ Greg MacKinnon, C.E.T. Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George Street Sydney, Nova Scotia, Canada B1P 1P3 tel: (902) 567-8076 fax: (902) 567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Thu Dec 19 18:04:37 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18P469-0006YI-00; Thu, 19 Dec 2002 18:04:37 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 66FA51112FD; Thu, 19 Dec 2002 17:57:15 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA06478 for linac-eng-list; Thu, 19 Dec 2002 10:30:32 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nasvir01.nas.medcity.net (mail.nas.medcity.net [199.91.33.30]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA06474 for ; Thu, 19 Dec 2002 10:30:31 -0600 (CST) Received: from 165.214.16.134 by nasvir01.nas.medcity.net (InterScan E-Mail VirusWall NT); Thu, 19 Dec 2002 10:02:47 -0600 Received: by exweb01.colhca.com with Internet Mail Service (5.5.2653.19) id ; Thu, 19 Dec 2002 10:00:56 -0600 Message-ID: <39A90AC123CB9D428821E2BC273E73CD01F8665F@ftwex03.ftw.medcity.net> From: Tirabassi Michael To: "'mackinnongreg@cbdha.nshealth.ca'" Cc: "Linac list (E-mail)" Subject: RE: 2100C/D Temp Probe Part # Date: Thu, 19 Dec 2002 10:01:05 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tirabassi Michael To: "'mackinnongreg@cbdha.nshealth.ca'" Cc: "Linac list (E-mail)" Subject: RE: 2100C/D Temp Probe Part # Date: Thu, 19 Dec 2002 10:01:05 -0600 Sender: owner-linac-eng@plato.aristotle.net Greg, I have a 21EX.(Probe with silver junction box on end.) The probe is made by Invensys (Siebe) # TS-8201-106 and it sits in a bulb well # AT-225. I don't know if you have this setup. You can go to their web site @ www.siebe-env-controls.com to find out the closest distributor in your area. They also have the hydraulic actuator,valve body & temp controller. If you have just the probe with leads you can try RadParts.com or Technical Options. They should be able to help you out. Mike T. Rapides Cancer Center -----Original Message----- From: Greg MacKinnon [mailto:mackinnongreg@cbdha.nshealth.ca] Sent: Thursday, December 19, 2002 7:39 AM To: LinacEng Subject: 2100C/D Temp Probe Part # Hi Group I am looking at getting a spare HE internal temperature probe. Does anyone have a manufacture & part number for Varian part number 36-200000 from the Temp Probe Assy. #892146. Merry Christmas & Happy New Year to all. Greg __________________________________________ Greg MacKinnon, C.E.T. Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George Street Sydney, Nova Scotia, Canada B1P 1P3 tel: (902) 567-8076 fax: (902) 567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Dec 21 02:19:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18PYID-0006qK-00; Sat, 21 Dec 2002 02:19:05 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 868F21105EF; Sat, 21 Dec 2002 02:10:50 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA21634 for linac-eng-list; Fri, 20 Dec 2002 18:48:54 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from spf1.us.outblaze.com (205-158-62-139.outblaze.com [205.158.62.139]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id SAA21630 for ; Fri, 20 Dec 2002 18:48:52 -0600 (CST) Received: (qmail 12886 invoked from network); 21 Dec 2002 00:48:21 -0000 Received: from unknown (205.158.62.68) by 205-158-62-139.outblaze.com with QMQP; 21 Dec 2002 00:48:21 -0000 Received: (qmail 49459 invoked from network); 21 Dec 2002 00:48:21 -0000 Received: from unknown (HELO ws1-10.us4.outblaze.com) (205.158.62.111) by 205-158-62-153.outblaze.com with SMTP; 21 Dec 2002 00:48:21 -0000 Received: (qmail 30922 invoked by uid 1001); 21 Dec 2002 00:48:21 -0000 Message-ID: <20021221004821.30921.qmail@mail.com> Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Received: from [152.163.188.226] by ws1-10.us4.outblaze.com with http for drumsome@musician.org; Fri, 20 Dec 2002 19:48:21 -0500 From: "Bob Huff" To: linac-eng@plato.aristotle.net Date: Fri, 20 Dec 2002 19:48:21 -0500 Subject: C-series X-Originating-Ip: 152.163.188.226 X-Originating-Server: ws1-10.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-Disposition: inline From: "Bob Huff" To: linac-eng@plato.aristotle.net Date: Fri, 20 Dec 2002 19:48:21 -0500 Subject: C-series X-Originating-Ip: 152.163.188.226 X-Originating-Server: ws1-10.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Hello, I have had several requests for an automatic system that will turn on a Varian C series machine from 'standby' to 'ON', using a timer system. Even though I have strongly argued against the use of such a device, has anyone ever heard of one? Thanks. -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Meet Singles http://corp.mail.com/lavalife 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sat Dec 21 03:44:09 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18PZcW-0006tq-00; Sat, 21 Dec 2002 03:44:08 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id BEA911105EF; Sat, 21 Dec 2002 03:35:58 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA23177 for linac-eng-list; Fri, 20 Dec 2002 20:20:39 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from rwcrmhc53.attbi.com (rwcrmhc53.attbi.com [204.127.198.39]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA23173 for ; Fri, 20 Dec 2002 20:20:38 -0600 (CST) Received: from attbi.com (12-247-220-103.client.attbi.com[12.247.220.103]) by rwcrmhc53.attbi.com (rwcrmhc53) with SMTP id <2002122102200705300k6g8he>; Sat, 21 Dec 2002 02:20:07 +0000 Date: Fri, 20 Dec 2002 20:19:36 -0600 Subject: Re: C-series Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v548) Cc: Rich Kimball , linac-eng@plato.aristotle.net To: "Bob Huff" From: Rich Kimball In-Reply-To: <20021221004821.30921.qmail@mail.com> Message-Id: Content-Transfer-Encoding: 7bit X-Mailer: Apple Mail (2.548) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Fri, 20 Dec 2002 20:19:36 -0600 Subject: Re: C-series Cc: Rich Kimball , linac-eng@plato.aristotle.net To: "Bob Huff" From: Rich Kimball In-Reply-To: <20021221004821.30921.qmail@mail.com> Sender: owner-linac-eng@plato.aristotle.net They are available from RadParts.Com Give Dee a call at 877-704-3838 or email at parts@radparts.com Why the argument? They work pretty slick and automate the treatment area equipment as well if desired, i.e. computers, monitors, MLC controllers etc. Rich Kimball Senior Service Engineer Acceletronics Midwest, Inc. On Friday, December 20, 2002, at 06:48 PM, Bob Huff wrote: > Hello, > I have had several requests for an automatic system that will turn on > a Varian C series machine from 'standby' to 'ON', using a timer > system. Even though I have strongly argued against the use of such a > device, has anyone ever heard of one? > > Thanks. > -- > __________________________________________________________ > Sign-up for your own FREE Personalized E-mail at Mail.com > http://www.mail.com/?sr=signup > > Meet Singles > http://corp.mail.com/lavalife > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 23 14:24:32 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18QSZM-0003zy-00; Mon, 23 Dec 2002 14:24:32 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7E9991112F1; Mon, 23 Dec 2002 14:14:56 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA07099 for linac-eng-list; Mon, 23 Dec 2002 06:42:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from nt-tudor00.cancercare.co.za (mail.cancercare.co.za [196.2.159.43]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id GAA07095 for ; Mon, 23 Dec 2002 06:42:50 -0600 (CST) Received: by smtp.cancercare.co.za with Internet Mail Service (5.5.2650.21) id ; Mon, 23 Dec 2002 14:39:03 +0200 Message-ID: From: Will Pazda To: "'linac-eng@plato.aristotle.net'" Subject: Siemens Mevatron - Digital - Tower Console Date: Mon, 23 Dec 2002 14:45:14 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Will Pazda To: "'linac-eng@plato.aristotle.net'" Subject: Siemens Mevatron - Digital - Tower Console Date: Mon, 23 Dec 2002 14:45:14 +0200 Sender: owner-linac-eng@plato.aristotle.net Hi, I have a defective Tower Console Power Supply Unit. I don't have a schematic for it which is making fault finding a bit difficult. It is made by a company called 'Dyna Five Corporation' and has a part number of '100378-1 Rev D'. I've tried to locate this company on the web without much success. Can anybody help with either a schematic, contact details for Dyna Five (web address) or information on a suitable compatible replacement. I also can't find a Siemens part number in my documentation for just the PSU, (I assume you can buy it separately form Siemens ?) so I will have difficulty in getting my local office to quote. Thanks, Will Pazda Cape Town, South Africa 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 23 17:46:36 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18QViu-0004fS-00; Mon, 23 Dec 2002 17:46:36 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id AD6CD1112F1; Mon, 23 Dec 2002 17:36:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA11291 for linac-eng-list; Mon, 23 Dec 2002 10:09:26 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from fep02.biz.rr.com (fep02.biz.rr.com [24.30.199.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA11287 for ; Mon, 23 Dec 2002 10:09:24 -0600 (CST) Received: from pent4 ([24.174.72.124]) by fep02.biz.rr.com with ESMTP id <20021223160924.HSLM15164.fep02.biz.rr.com@pent4>; Mon, 23 Dec 2002 11:09:24 -0500 From: "Thomas McCausland" To: Will Pazda , "'linac-eng@plato.aristotle.net'" Date: Mon, 23 Dec 2002 10:09:09 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Siemens Mevatron - Digital - Tower Console Reply-To: acceltek@acceltekservice.com Message-ID: <3E06E0C5.29007.1A5021@localhost> In-reply-to: X-mailer: Pegasus Mail for Win32 (v3.12c) Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Thomas McCausland" To: Will Pazda , "'linac-eng@plato.aristotle.net'" Date: Mon, 23 Dec 2002 10:09:09 -0600 Subject: Re: Siemens Mevatron - Digital - Tower Console Reply-To: acceltek@acceltekservice.com In-reply-to: Sender: owner-linac-eng@plato.aristotle.net From: Will Pazda To: "'linac-eng@plato.aristotle.net'" Subject: Siemens Mevatron - Digital - Tower Console Date sent: Mon, 23 Dec 2002 14:45:14 +0200 > Hi, > > I have a defective Tower Console Power Supply Unit. I don't have a schematic > for it which is making fault finding a bit difficult. It is made by a > company called 'Dyna Five Corporation' and has a part number of '100378-1 > Rev D'. I've tried to locate this company on the web without much success. > Can anybody help with either a schematic, contact details for Dyna Five (web > address) or information on a suitable compatible replacement. I also can't > find a Siemens part number in my documentation for just the PSU, (I assume > you can buy it separately form Siemens ?) so I will have difficulty in > getting my local office to quote. > > Thanks, > > Will Pazda > Cape Town, > South Africa Will, I show the part number for the power supply as Pwr Sply, Integrated Tower 4501214, but you might try the factory to confirm that. I don't know of an outside source for the part but I bet given enough reasearch you could probably find one (I realize time is probably a problem). Thomas W. McCausland AccelTek Inc. 281-652-0059 888-619-8811 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 24 11:53:24 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Qmge-0007bm-00; Tue, 24 Dec 2002 11:53:24 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7DF141112F7; Tue, 24 Dec 2002 11:43:22 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA27816 for linac-eng-list; Tue, 24 Dec 2002 04:27:38 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from zw_ntserver_1.walcheren.ziekenhuis.nl ([212.115.200.190]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id EAA27812 for ; Tue, 24 Dec 2002 04:27:37 -0600 (CST) From: CJ.de.Bruijne@walcheren.ziekenhuis.nl Received: by ZW_NTSRV1-0 with Internet Mail Service (5.5.2653.19) id ; Tue, 24 Dec 2002 11:27:32 +0100 Message-ID: To: linac-eng@plato.aristotle.net Subject: MLC crash Date: Tue, 24 Dec 2002 11:27:31 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: CJ.de.Bruijne@walcheren.ziekenhuis.nl To: linac-eng@plato.aristotle.net Subject: MLC crash Date: Tue, 24 Dec 2002 11:27:31 +0100 Sender: owner-linac-eng@plato.aristotle.net Hi group, for the ones of us who hates christmas is here a problem to fill your thoughts in a differend way: - Varian 80 leafs MLC (non-millenium) - patient setup via VARIS: MLC field is set. ('GO') after that on MLC workstation picture - bank A has a good shape - bank B flat , only carriage seems to move, all leafs retracted. repeated 'RETRACT' and 'GO' - retract picture is normal - go picture same as above in reality: - leaf B40 fully extended - leaf B40 has crashed against the opposit A40 - leaf screw shows funny angles After renewing leaf screw & nut everything works nice. (also SFB brush was renewed) but: - why was faulty leafposition not visible at MLC workstation? (sorry, was in a hurry, did not read the MLC contoller messages) regards and happy days, Keesjan de Bruijne Biomedical Engineer Ziekenhuis Walcheren Vlissingen, the Netherlands dep. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 24 15:09:25 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18QpkL-0001Yz-00; Tue, 24 Dec 2002 15:09:25 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ED7661112F7; Tue, 24 Dec 2002 14:59:17 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA00895 for linac-eng-list; Tue, 24 Dec 2002 07:40:47 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from EXCHVS2.medctr.ad.wfubmc.edu (exchvs2.medctr.ad.wfubmc.edu [152.11.200.74] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA00890 for ; Tue, 24 Dec 2002 07:40:45 -0600 (CST) X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: MLC crash Date: Tue, 24 Dec 2002 08:40:14 -0500 Message-ID: <9AEEF1FB6254224AA355ED285F849165038727@EXCHVS2.medctr.ad.wfubmc.edu> Thread-Topic: MLC crash Thread-Index: AcKrQIkdy0kGM422RviFzLAtz6SCdAADZU1A From: "Tim Cullen" To: , Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA00891 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Subject: RE: MLC crash Date: Tue, 24 Dec 2002 08:40:14 -0500 Thread-Topic: MLC crash Thread-Index: AcKrQIkdy0kGM422RviFzLAtz6SCdAADZU1A From: "Tim Cullen" To: , X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA00891 Sender: owner-linac-eng@plato.aristotle.net Hey CJ, I wouldn't say I hate Christmas, just all the crazies it brings out in the shopping centers. The 80 leaf MLC unit we used to have was prone to the exact failure you mention on several occasions. I even had to replace the motor block once due to a catastrophic failure. I always suspected the carriage and the way the control SW handled where the leaves are versus where the carriage is. There is obviously not a tight enough link between the two or safety redundancies. The other suspect is the brake and the drive signal. I would also suspect the carriage motors and/or the flex cables. As you can see there is a lot to suspect. As for the display I'll tell you this, not completely integrated with real time. The 120 MMLC is the same way. During initialization you can watch the individual leaves cycle through and that's it. During the secondary phase it shows you nothing and you wait and wait then finally, and only if watch closely, you'll see this little box on the bottom menu bar pop up and say "online." I'm sure all this has to do with how fast they can graphically refresh the screen with the dell package they use. Of course there is always hyperterminal. I remember the Varian people being real nervous about anyone in the field using the mlc "service" program because they said you could do so much damage. Well through the years with that 80 leaf it took care of that on it's own. Happy Holidays Everyone, Tim -----Original Message----- From: CJ.de.Bruijne@walcheren.ziekenhuis.nl [mailto:CJ.de.Bruijne@walcheren.ziekenhuis.nl] Sent: Tuesday, December 24, 2002 5:28 AM To: linac-eng@plato.aristotle.net Subject: MLC crash Hi group, for the ones of us who hates christmas is here a problem to fill your thoughts in a differend way: - Varian 80 leafs MLC (non-millenium) - patient setup via VARIS: MLC field is set. ('GO') after that on MLC workstation picture - bank A has a good shape - bank B flat , only carriage seems to move, all leafs retracted. repeated 'RETRACT' and 'GO' - retract picture is normal - go picture same as above in reality: - leaf B40 fully extended - leaf B40 has crashed against the opposit A40 - leaf screw shows funny angles After renewing leaf screw & nut everything works nice. (also SFB brush was renewed) but: - why was faulty leafposition not visible at MLC workstation? (sorry, was in a hurry, did not read the MLC contoller messages) regards and happy days, Keesjan de Bruijne Biomedical Engineer Ziekenhuis Walcheren Vlissingen, the Netherlands dep. DIA cj.de.bruijne@walcheren.ziekenhuis.nl 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 24 20:42:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18QuwE-0002bQ-00; Tue, 24 Dec 2002 20:42:02 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id ECC031112F7; Tue, 24 Dec 2002 20:31:47 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA06813 for linac-eng-list; Tue, 24 Dec 2002 13:07:31 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from gwmail.harthosp.org (gwmail.harthosp.org [199.231.29.249]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA06809 for ; Tue, 24 Dec 2002 13:07:25 -0600 (CST) Received: from HHCC-MTA by gwmail.harthosp.org with Novell_GroupWise; Tue, 24 Dec 2002 14:06:49 -0500 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 Date: Tue, 24 Dec 2002 14:06:36 -0500 From: "Robert Lindeyer" To: Subject: CCTV monitors Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_B7E88C59.68085948" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Tue, 24 Dec 2002 14:06:36 -0500 From: "Robert Lindeyer" To: Subject: CCTV monitors Sender: owner-linac-eng@plato.aristotle.net --=_B7E88C59.68085948 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Hello All, I am looking for a flat panel monitor for our in room CCTV system. Have any of you ever used such systems. If so what type of monitor did you get? Any info will be helpful Happy Holidays Robert Lindeyer Clinical Engineer Radiation Oncology Hartford Hospital 80 Seymour St POBox 5037 Hartford, CT 06102-5037 860-545-4346 rlindey@harthosp.org --=_B7E88C59.68085948 Content-Type: text/plain Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Robert Lindeyer.vcf" BEGIN:VCARD VERSION:2.1 X-GWTYPE:USER FN:Lindeyer, Robert TEL;WORK:545-4346 ORG:;Medical Physics TEL;PREF;FAX:545-1500 EMAIL;WORK;PREF;NGW:Rlindey.GWPO301.HHCC_2 N:Lindeyer;Robert TITLE:Engineer END:VCARD --=_B7E88C59.68085948-- 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Wed Dec 25 00:01:40 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Qy3Q-0002mu-00; Wed, 25 Dec 2002 00:01:40 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 522631112F7; Tue, 24 Dec 2002 23:51:20 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA10385 for linac-eng-list; Tue, 24 Dec 2002 16:37:30 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from server106.phsa.ca (mail.phsa.ca [209.139.228.217]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA10381 for ; Tue, 24 Dec 2002 16:37:29 -0600 (CST) Received: from server17.bccancer.bc.ca ([205.233.164.254]) by server106.phsa.ca with Microsoft SMTPSVC(5.0.2195.5329); Tue, 24 Dec 2002 14:39:00 -0800 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Tue, 24 Dec 2002 14:38:00 -0800 Message-ID: <6BAF4D075F07D411B30900508B94CBA007A4F6C8@SERVER20> From: "Patrick Wong (VICC)" To: "'Robert Lindeyer'" , linac-eng@plato.aristotle.net Subject: RE: CCTV monitors Date: Tue, 24 Dec 2002 14:38:19 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C2AB9D.28873540" X-OriginalArrivalTime: 24 Dec 2002 22:39:00.0901 (UTC) FILETIME=[41075550:01C2AB9D] Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" To: "'Robert Lindeyer'" , linac-eng@plato.aristotle.net Subject: RE: CCTV monitors Date: Tue, 24 Dec 2002 14:38:19 -0800 X-OriginalArrivalTime: 24 Dec 2002 22:39:00.0901 (UTC) FILETIME=[41075550:01C2AB9D] Sender: owner-linac-eng@plato.aristotle.net This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C2AB9D.28873540 Content-Type: text/plain; charset="iso-8859-1" Hi Robert, Our clinic using LCD flat panel display monitor for the in-room color camera from Earthlcd Inc. two years ago. You can see the products on the web at www.earhtlcd.com , then click on industrial LCD monitor section. The model we us is MTR-NTSC-11.3 , it has a 11.3 inches viewing display and panavise mounting to the console wall, it accept regular video & s-video input and don't have any problem for the last two years, very reliable and has very high resolution picture display. It cost only $649 two years ago, but I saw it on their web sell for $599 now, the price come down a lot if you buy more. Hope this help. Merry Christmas & New Year Holiday to all. Patrick Wong C.T. Radiotherapy Service Technologist Dept. Of Medical Physics Vancouver Island Cancer Centre 2410 Lee Avenue Victoria B.C. Canada V8R 6V5 Tel:(250) 519-5500 X-3737 Fax.(250)519-2024 -----Original Message----- From: Robert Lindeyer [mailto:Rlindey@harthosp.org] Sent: Tuesday, December 24, 2002 11:07 AM To: linac-eng@plato.aristotle.net Subject: CCTV monitors Hello All, I am looking for a flat panel monitor for our in room CCTV system. Have any of you ever used such systems. If so what type of monitor did you get? Any info will be helpful Happy Holidays Robert Lindeyer Clinical Engineer Radiation Oncology Hartford Hospital 80 Seymour St POBox 5037 Hartford, CT 06102-5037 860-545-4346 rlindey@harthosp.org ------_=_NextPart_001_01C2AB9D.28873540 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: CCTV monitors

    Hi Robert,
    Our clinic using LCD flat panel display monitor for = the in-room color camera from Earthlcd Inc. two years ago.
    You can see the products on the web at = www.earhtlcd.com , then click on industrial LCD monitor section.

    The model we us is MTR-NTSC-11.3 , it has a 11.3 = inches viewing display and panavise mounting to the console wall, it = accept regular video & s-video input and don't have any problem for = the last two years, very reliable and has very high resolution picture = display. It cost only $649 two years ago, but I saw it on their web = sell for $599 now, the price come down a lot if you buy = more.

    Hope this help.
    Merry Christmas & New Year Holiday to = all.


    Patrick Wong C.T.
    Radiotherapy Service Technologist
    Dept. Of  Medical Physics
    Vancouver Island Cancer Centre
    2410 Lee Avenue
    Victoria B.C. Canada
    V8R 6V5
    Tel:(250) 519-5500 X-3737
    Fax.(250)519-2024

    -----Original Message-----
    From: Robert Lindeyer [mailto:Rlindey@harthosp.org]
    Sent: Tuesday, December 24, 2002 11:07 AM
    To: linac-eng@plato.aristotle.net
    Subject: CCTV monitors


    Hello All,


    I am looking for a flat panel monitor for our in room = CCTV system. Have
    any of you ever used such systems. If so what type = of monitor did you
    get?

    Any info will be helpful


    Happy Holidays

    Robert Lindeyer
    Clinical Engineer
    Radiation Oncology
    Hartford Hospital
    80 Seymour St
    POBox 5037
    Hartford, CT 06102-5037
    860-545-4346
    rlindey@harthosp.org


    ------_=_NextPart_001_01C2AB9D.28873540-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 27 15:20:14 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18RvLS-0000XC-00; Fri, 27 Dec 2002 15:20:14 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 234D61112FC; Fri, 27 Dec 2002 15:08:25 +0100 (MET) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA10973 for linac-eng-list; Fri, 27 Dec 2002 07:48:42 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail5.nhs.uk (mail5.nhs.uk [194.72.23.242]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA10969 for ; Fri, 27 Dec 2002 07:48:39 -0600 (CST) Received: from hn-ext by mail5.nhs.uk (Sendmail 8.8.8) with esmtp id 18RuqO-0004yA-00; Fri, 27 Dec 2002 13:48:08 +0000 Received: from relay.nhs.uk (194.62.42.142) by relayint2.nhs.uk (Syntegra-I2 6.5.016) id 3DD28BFA0071046B for linac-eng@plato.aristotle.net; Fri, 27 Dec 2002 13:48:08 +0000 Received: from sabari.essexrivers.nhs.uk (195.104.128.100) by relay.nhs.uk (Syntegra-2 6.5.026) id 3E08AD7C00091D89 for linac-eng@plato.aristotle.net; Fri, 27 Dec 2002 13:49:07 +0000 Received: from thames.essexrivers.nhs.uk (unverified) by sabari.essexrivers.nhs.uk (Content Technologies SMTPRS 4.2.1) with ESMTP id ; Fri, 27 Dec 2002 13:46:39 +0000 Received: by THAMES with Internet Mail Service (5.5.2650.21) id ; Fri, 27 Dec 2002 13:47:10 -0000 Message-ID: <1D2BB24BCAA2D311875200902798A0DE02DEDF8C@THAMES> From: "Haghighat Saeed (RDE) Essex Rivers" To: "'Williams, Rod'" , "'normand_freniere_chrtr@ssss.gouv.qc.ca'" , linac-eng@plato.aristotle.net Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Subject: RE: To Clinac Varian owners about water additive and possible lea ks Date: Fri, 27 Dec 2002 13:47:02 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA10970 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Haghighat Saeed (RDE) Essex Rivers" To: "'Williams, Rod'" , "'normand_freniere_chrtr@ssss.gouv.qc.ca'" , linac-eng@plato.aristotle.net Cc: medphys@LISTS.WAYNE.EDU, canada-l@irus.rri.on.ca Subject: RE: To Clinac Varian owners about water additive and possible lea ks Date: Fri, 27 Dec 2002 13:47:02 -0000 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id HAA10970 Sender: owner-linac-eng@plato.aristotle.net Hi Normand, We have not had problems with our systems yet, but the chemicals which Varian supplies has been banned in the Europe by ONDEO Nalco UK for past two years as one of the chemicals i.e. Nalco 28 contains Glutaraldhyde which is harmful to the respiratory system. I wrote to the Varian 3 month ago and I am still waiting for a reply! Nalco representative supplied me with the product details which replaced the Nalco 2838 That is: Product prices.......73361 £3.81 per Kg 25kg containers AQU 1020 £6.51 per Kg 20Kg containers Please contact the Nalco representative in your area and they can supply the appropriate chemicals and cheaper! Regards Saeed -----Original Message----- From: Williams, Rod [mailto:rod.williams@phci.org] Sent: 21 November 2002 10:50 To: 'normand_freniere_chrtr@ssss.gouv.qc.ca'; linac-eng@plato.aristotle.net Cc: medphys@LISTS.WAYNE.EDU; canada-l@irus.rri.on.ca Subject: RE: To Clinac Varian owners about water additive and possible lea ks I believe that the general conscious is to change the water every 6 months and only add half of the recommended Biocide Nalco 5230 if the brown stuff starts growing. If no brown stuff then I add nothing. I have found that one treatment with the 5230 will last for many clean water changes. I have had problems with the fittings leaking but I believe that somehow a bunch of bad fitting are out in the field, also I have noticed that on my newest machine 2100 s/n 1630 that he factory used antiseize on the water fittings when they put it together. What's up with that??? Rod.Williams@phci.org WAUKESHA MEMORIAL RODDMOD@HOTMAIL.COM ENCORE ENGINEERING SERVICES 7906 W.DIXON ST MILWAUKEE, WI 53214 414-443-6430 262-928-4734 > -----Original Message----- > From: normand_freniere_chrtr@ssss.gouv.qc.ca > [SMTP:normand_freniere_chrtr@ssss.gouv.qc.ca] > Sent: Wednesday, November 20, 2002 1:27 PM > To: linac-eng@plato.aristotle.net > Cc: medphys@LISTS.WAYNE.EDU; canada-l@irus.rri.on.ca > Subject: To Clinac Varian owners about water additive and possible > leaks > > Good day to everyone from Trois-Rivieres, Quebec, Canada > > We would like to know if other Varian Clinac's owners experience water > leaks since they add the recommended chemical solutions to the water > circuit. > > In the last year, Varian came out with a new additive to the water > circuitry to prevent corrosion, bacteria, algae, etc. This additive is the > Nalco 2838 and Nalco 100011781-04 (Varian kit P4440). We started using it > about eight months ago with both of our three years old CL21EX linacs. > > In the last months, we face multiple water leaks on one of the linac. We > have got eight leaks up to now, including the klystron and klystron > solenoid. Most of the leaks appeared at metal fitting. We are puzzled > about > what is happening. > > The first leak appeared at the fitting of a recently three years > preventive > maintenance changed hose (done five months ago). We suspected the changed > hoses batch to be defective, but other leaks appeared at the fitting of > unchanged hoses (those replaced at the five years preventive maintenance) > and with the build-in pipe of the klystron and klystron's solenoid > (solenoid had the leak in the metal pipe, not at the fitting). Everything > brings us to focus on the water. > > Is the new additive appropriate? Varian argues it is. Are we facing a > faulty additive kit that would explains the leaks on one of the linac or > should we expect future leaks with the other linac? Are we facing a faulty > hose batch in addition to few other independent leaks? > > Have you experience any problem since you use the Nalco 2838 additive to > your water circuitry? > > Sincerely, > > Normand Frenière, M.Sc., MCCPM > Clinical Medical Physicist > Centre Hospitalier Régional de Trois-Rivières > Radio-oncologie > 1991 boul. du Carmel > Trois-Rivières Qc G8Z 3R9 > e-mail : normand_freniere_chrtr@ssss.gouv.qc.ca > ********************************************************************************** Essex Rivers Healthcare NHS Trust does not enter into contractual negotiations, contracts or any other form of legally binding agreement via e-mail. Therefore this message does not constitute any form of contractual offer or acceptance. Essex Rivers Healthcare NHS Trust does not assume or accept any legal responsibility for the contents of this message save where it is sent by one of it's employees in the course of his or her employment. This message is intended only for the individual or entity to which it is addressed and may contain information that is private and confidential. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication and it's attachment is strictly prohibited. If you have received this communication and it's attachments in error, please return the original message and attachments to us using the reply facility on e-mail. Essex Rivers Healthcare NHS Trust periodically and automatically monitors e-mails to ensure appropriate and lawful use is made of them. The contents of this message may therefore be subject to monitoring. This footnote also confirms that this email message has been swept by Sophos for the presence of computer viruses. ********************************************************************************** 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 27 22:51:02 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18S2Ni-0001Tl-00; Fri, 27 Dec 2002 22:51:02 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 2C0401112FA; Fri, 27 Dec 2002 22:39:03 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA03904 for linac-eng-list; Fri, 27 Dec 2002 15:20:27 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from spf1.us.outblaze.com (205-158-62-139.outblaze.com [205.158.62.139]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA03900 for ; Fri, 27 Dec 2002 15:20:21 -0600 (CST) Received: (qmail 24729 invoked from network); 27 Dec 2002 21:19:51 -0000 Received: from unknown (205.158.62.68) by 205-158-62-139.outblaze.com with QMQP; 27 Dec 2002 21:19:51 -0000 Received: (qmail 64737 invoked from network); 27 Dec 2002 21:19:45 -0000 Received: from unknown (HELO ws1-9.us4.outblaze.com) (205.158.62.37) by 205-158-62-153.outblaze.com with SMTP; 27 Dec 2002 21:19:45 -0000 Received: (qmail 23771 invoked by uid 1001); 27 Dec 2002 21:19:44 -0000 Message-ID: <20021227211944.23770.qmail@mail.com> Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Received: from [150.198.138.127] by ws1-9.us4.outblaze.com with http for drumsome@musician.org; Fri, 27 Dec 2002 16:19:44 -0500 From: "Bob Huff" To: linac-eng@plato.aristotle.net Date: Fri, 27 Dec 2002 16:19:44 -0500 Subject: MLC optical X-Originating-Ip: 150.198.138.127 X-Originating-Server: ws1-9.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Content-Disposition: inline From: "Bob Huff" To: linac-eng@plato.aristotle.net Date: Fri, 27 Dec 2002 16:19:44 -0500 Subject: MLC optical X-Originating-Ip: 150.198.138.127 X-Originating-Server: ws1-9.us4.outblaze.com Sender: owner-linac-eng@plato.aristotle.net Hello, Does anyone have a supplier for the Infra-red emitter diode that is used on the MLC-mk2 optical system? It mounts on varian pcb #889870-02. Thank you for your assistance. Bob -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Meet Singles http://corp.mail.com/lavalife 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Fri Dec 27 23:32:59 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18S32J-0001Vz-00; Fri, 27 Dec 2002 23:32:59 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 17D381112FA; Fri, 27 Dec 2002 23:20:59 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA05305 for linac-eng-list; Fri, 27 Dec 2002 16:06:56 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from ns1.cancercare.on.ca (mail.cancercare.on.ca [204.225.32.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA05301 for ; Fri, 27 Dec 2002 16:06:54 -0600 (CST) Received: from hrccex.hrcc.on.ca (hrccex.hrcc.on.ca [142.76.248.25]) by ns1.cancercare.on.ca (8.11.6/8.11.6) with ESMTP id gBRM3Tw20330; Fri, 27 Dec 2002 17:03:29 -0500 Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Fri, 27 Dec 2002 17:05:56 -0500 Message-ID: <9C688FB52A05D51194750002B325B5F702435A39@hrccex.hrcc.on.ca> From: "Heil, Ben" To: "'Bob Huff'" , linac-eng@plato.aristotle.net Subject: RE: MLC optical Date: Fri, 27 Dec 2002 17:05:55 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Heil, Ben" To: "'Bob Huff'" , linac-eng@plato.aristotle.net Subject: RE: MLC optical Date: Fri, 27 Dec 2002 17:05:55 -0500 Sender: owner-linac-eng@plato.aristotle.net Bob; OPTO DIODE CORP. http://www.optodiode.com/ Part Number OD-880F Ben Hamilton, Ontario -----Original Message----- From: Bob Huff [mailto:drumsome@musician.org] Sent: Friday, December 27, 2002 4:20 PM To: linac-eng@plato.aristotle.net Subject: MLC optical Hello, Does anyone have a supplier for the Infra-red emitter diode that is used on the MLC-mk2 optical system? It mounts on varian pcb #889870-02. Thank you for your assistance. Bob -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Meet Singles http://corp.mail.com/lavalife 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Sun Dec 29 18:06:46 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Sgti-0004aS-00; Sun, 29 Dec 2002 18:06:46 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 531011112F5; Sun, 29 Dec 2002 17:53:45 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA19811 for linac-eng-list; Sun, 29 Dec 2002 10:30:35 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from web20910.mail.yahoo.com (web20910.mail.yahoo.com [216.136.226.232]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA19807 for ; Sun, 29 Dec 2002 10:30:33 -0600 (CST) Message-ID: <20021229163032.66188.qmail@web20910.mail.yahoo.com> Received: from [68.67.112.116] by web20910.mail.yahoo.com via HTTP; Sun, 29 Dec 2002 08:30:32 PST Date: Sun, 29 Dec 2002 08:30:32 -0800 (PST) From: David Bisciotti Subject: Subscribing to the List Server To: linac-eng@plato.aristotle.net MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Date: Sun, 29 Dec 2002 08:30:32 -0800 (PST) From: David Bisciotti Subject: Subscribing to the List Server To: linac-eng@plato.aristotle.net Sender: owner-linac-eng@plato.aristotle.net I seem to have lost the instructions on subscribing to the List Server - anyone have the instructions? I would like to pass them on to a friend (This must be the gazillionth time someone has asked for this!) __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 30 12:00:16 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18Sxea-0006rS-00; Mon, 30 Dec 2002 12:00:16 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 4E29A1112FA; Mon, 30 Dec 2002 11:46:50 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA08038 for linac-eng-list; Mon, 30 Dec 2002 04:31:10 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from pebble.orebroll.se ([194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id EAA08034 for ; Mon, 30 Dec 2002 04:31:08 -0600 (CST) From: per.zetterberg@orebroll.se Received: from [192.168.250.102] by [192.168.250.24]; using TFS Secure Messaging on Mon, 30 Dec 2002 11:31:01 +0100 Received: by exchange-1.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Dec 2002 11:31:01 +0100 Message-ID: <6706632E2918D311824B00A0C94BA1D8018D1D74@exchange2.orebroll.se> To: linac-eng@plato.aristotle.net Subject: MLC optical Date: Mon, 30 Dec 2002 11:30:59 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA08035 Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: per.zetterberg@orebroll.se To: linac-eng@plato.aristotle.net Subject: MLC optical Date: Mon, 30 Dec 2002 11:30:59 +0100 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA08035 Sender: owner-linac-eng@plato.aristotle.net Ben, Have you had any luck repairing these MLC optical emitters? Are they not extremely sensitive to heat, making it difficult to solder on to the PCB without damaging them at the same time? Thanks Per Örebro, Sweden -----Original Message----- From: Heil, Ben [mailto:Ben.Heil@hrcc.on.ca] Sent: den 27 december 2002 23:06 To: 'Bob Huff'; linac-eng@plato.aristotle.net Subject: RE: MLC optical Bob; OPTO DIODE CORP. http://www.optodiode.com/ Part Number OD-880F Ben Hamilton, Ontario -----Original Message----- From: Bob Huff [mailto:drumsome@musician.org] Sent: Friday, December 27, 2002 4:20 PM To: linac-eng@plato.aristotle.net Subject: MLC optical Hello, Does anyone have a supplier for the Infra-red emitter diode that is used on the MLC-mk2 optical system? It mounts on varian pcb #889870-02. Thank you for your assistance. Bob -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Meet Singles http://corp.mail.com/lavalife 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 30 15:31:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18T0wb-0000ih-00; Mon, 30 Dec 2002 15:31:05 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 8BA941112FA; Mon, 30 Dec 2002 15:17:34 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA11375 for linac-eng-list; Mon, 30 Dec 2002 08:05:55 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from arrakis.vcu.edu (arrakis.vcu.edu [128.172.1.132]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA11371 for ; Mon, 30 Dec 2002 08:05:49 -0600 (CST) From: clbartee@hsc.vcu.edu Received: from mail2.vcu.edu (arrakis.vcu.edu [127.0.0.1]) by arrakis.vcu.edu (8.9.3/8.9.3) with ESMTP id JAA12201; Mon, 30 Dec 2002 09:05:47 -0500 Message-Id: <200212301405.JAA12201@arrakis.vcu.edu> In-Reply-To: Cc: linac-eng@plato.aristotle.net Content-Transfer-Encoding: 8bit Date: Mon, 30 Dec 2002 09:05:47 -0500 Subject: Re: MLC crash MIME-Version: 1.0 To: CJ.de.Bruijne@walcheren.ziekenhuis.nl User-Agent: IMHO/0.98.3 (Webmail for Roxen) Content-Type: text/plain; charset=us-ascii Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: clbartee@hsc.vcu.edu In-Reply-To: Cc: linac-eng@plato.aristotle.net Date: Mon, 30 Dec 2002 09:05:47 -0500 Subject: Re: MLC crash To: CJ.de.Bruijne@walcheren.ziekenhuis.nl Sender: owner-linac-eng@plato.aristotle.net I have seen this problem many times. Usually it is the motcomm brd. After replacement the problem never came back. Chris ------------------- > Hi group, > > for the ones of us who hates christmas is here a problem > to fill your thoughts in a differend way: > > - Varian 80 leafs MLC (non-millenium) > - patient setup via VARIS: MLC field is set. ('GO') > after that on MLC workstation picture > - bank A has a good shape > - bank B flat , only carriage seems to move, all leafs retracted. > repeated 'RETRACT' and 'GO' > - retract picture is normal > - go picture same as above > in reality: > - leaf B40 fully extended > - leaf B40 has crashed against the opposit A40 > - leaf screw shows funny angles > > After renewing leaf screw & nut everything works nice. > (also SFB brush was renewed) > but: > - why was faulty leafposition not visible at MLC workstation? > > (sorry, was in a hurry, did not read the MLC contoller messages) > > regards and happy days, > > Keesjan de Bruijne > Biomedical Engineer > Ziekenhuis Walcheren > Vlissingen, the Netherlands > dep. DIA > cj.de.bruijne@walcheren.ziekenhuis.nl > > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 30 19:02:33 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18T4FE-0001qQ-00; Mon, 30 Dec 2002 19:02:33 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id A8BB21112F7 for ; Mon, 30 Dec 2002 18:48:58 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KQNJCHCD4G8XFH97@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Dec 2002 18:55:19 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KQNJCEGGTM8XGILI@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Dec 2002 18:55:15 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA14846 for linac-eng-list; Mon, 30 Dec 2002 10:24:28 -0600 (CST) Received: from localhost.localdomain (caladan.vcu.edu [128.172.1.138]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA14842 for ; Mon, 30 Dec 2002 10:24:26 -0600 (CST) Received: from mail2.vcu.edu (caladan [127.0.0.1]) by localhost.localdomain (8.11.6/8.11.6) with ESMTP id gBUGO7624418; Mon, 30 Dec 2002 11:24:07 -0500 Date: Mon, 30 Dec 2002 11:24:07 -0500 From: clbartee@hsc.vcu.edu Subject: Re: MLC optical In-reply-to: <6706632E2918D311824B00A0C94BA1D8018D1D74@exchange2.orebroll.se> Sender: owner-linac-eng@plato.aristotle.net To: per.zetterberg@orebroll.se Cc: linac-eng@plato.aristotle.net Message-id: <200212301624.gBUGO7624418@localhost.localdomain> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8BIT Precedence: bulk User-Agent: IMHO/0.98.3 (Webmail for Roxen) X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Dec 2002 11:24:07 -0500 From: clbartee@hsc.vcu.edu Subject: Re: MLC optical In-reply-to: <6706632E2918D311824B00A0C94BA1D8018D1D74@exchange2.orebroll.se> Sender: owner-linac-eng@plato.aristotle.net To: per.zetterberg@orebroll.se Cc: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f I replace them at least once a year with no problems. Chris ------------------- > Ben, > > Have you had any luck repairing these MLC optical emitters? Are they not > extremely sensitive to heat, making it difficult to solder on to the PCB > without damaging them at the same time? > > Thanks > > Per > Örebro, Sweden > > > -----Original Message----- > From: Heil, Ben [mailto:Ben.Heil@hrcc.on.ca] > Sent: den 27 december 2002 23:06 > To: 'Bob Huff'; linac-eng@plato.aristotle.net > Subject: RE: MLC optical > > > > Bob; > > OPTO DIODE CORP. > http://www.optodiode.com/ > > Part Number OD-880F > > > Ben > Hamilton, Ontario > > > -----Original Message----- > From: Bob Huff [mailto:drumsome@musician.org] > Sent: Friday, December 27, 2002 4:20 PM > To: linac-eng@plato.aristotle.net > Subject: MLC optical > > > Hello, > Does anyone have a supplier for the Infra-red emitter diode that is used on > the MLC-mk2 optical system? It mounts on varian pcb #889870-02. > > Thank you for your assistance. > > Bob > -- > __________________________________________________________ > Sign-up for your own FREE Personalized E-mail at Mail.com > http://www.mail.com/?sr=signup > > Meet Singles > http://corp.mail.com/lavalife > > 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 30 19:10:05 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18T4MX-0001r0-00; Mon, 30 Dec 2002 19:10:05 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id D9D9E1112F7 for ; Mon, 30 Dec 2002 18:56:30 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KQNJLV1YPS8XEMC3@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Dec 2002 19:02:52 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KQNJLT3XEW8XGILI@med.uu.nl> for kok@radth.med.uu.nl; Mon, 30 Dec 2002 19:02:50 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA13100 for linac-eng-list; Mon, 30 Dec 2002 09:14:59 -0600 (CST) Received: from ns1.cancercare.on.ca (mail.cancercare.on.ca [204.225.32.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA13096 for ; Mon, 30 Dec 2002 09:14:57 -0600 (CST) Received: from hrccex.hrcc.on.ca (hrccex.hrcc.on.ca [142.76.248.25]) by ns1.cancercare.on.ca (8.11.6/8.11.6) with ESMTP id gBUFBFw19910 for ; Mon, 30 Dec 2002 10:11:15 -0500 Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Mon, 30 Dec 2002 10:13:58 -0500 Date: Mon, 30 Dec 2002 10:13:57 -0500 From: "Heil, Ben" Subject: RE: MLC optical Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Message-id: <9C688FB52A05D51194750002B325B5F702435A3A@hrccex.hrcc.on.ca> MIME-version: 1.0 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA13097 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Mon, 30 Dec 2002 10:13:57 -0500 From: "Heil, Ben" Subject: RE: MLC optical Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA13097 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Per; We have successfully changed bad infra-red LEDs with new ones. I don't know how heat sensitive these LEDs are. We haven't had any problems with these LEDs being damaged from heat. Ben Hamilton, Ontario -----Original Message----- From: per.zetterberg@orebroll.se [mailto:per.zetterberg@orebroll.se] Sent: Monday, December 30, 2002 5:31 AM To: linac-eng@plato.aristotle.net Subject: MLC optical Ben, Have you had any luck repairing these MLC optical emitters? Are they not extremely sensitive to heat, making it difficult to solder on to the PCB without damaging them at the same time? Thanks Per Örebro, Sweden -----Original Message----- From: Heil, Ben [mailto:Ben.Heil@hrcc.on.ca] Sent: den 27 december 2002 23:06 To: 'Bob Huff'; linac-eng@plato.aristotle.net Subject: RE: MLC optical Bob; OPTO DIODE CORP. http://www.optodiode.com/ Part Number OD-880F Ben Hamilton, Ontario -----Original Message----- From: Bob Huff [mailto:drumsome@musician.org] Sent: Friday, December 27, 2002 4:20 PM To: linac-eng@plato.aristotle.net Subject: MLC optical Hello, Does anyone have a supplier for the Infra-red emitter diode that is used on the MLC-mk2 optical system? It mounts on varian pcb #889870-02. Thank you for your assistance. Bob -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Meet Singles http://corp.mail.com/lavalife 1,, X-Coding-System: undecided-unix Mail-from: From owner-linac-eng@plato.aristotle.net Mon Dec 30 19:31:07 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18T4gt-0001rz-00; Mon, 30 Dec 2002 19:31:07 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 999BD1112F7; Mon, 30 Dec 2002 19:17:31 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA17043 for linac-eng-list; Mon, 30 Dec 2002 11:58:00 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.mdanderson.org (mail.mdanderson.org [143.111.87.47]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA17038 for ; Mon, 30 Dec 2002 11:57:58 -0600 (CST) From: erymes@mail.mdanderson.org Received: from utm-notesob1.mdacc.tmc.edu (utm-notesob1.mdacc.tmc.edu [143.111.88.29]) by mail.mdanderson.org (8.9.1b+Sun/8.9.1) with SMTP id LAA00534; Mon, 30 Dec 2002 11:54:22 -0600 (CST) Received: by utm-notesob1.mdacc.tmc.edu(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 86256C9F.0061F392 ; Mon, 30 Dec 2002 11:49:53 -0600 X-Lotus-FromDomain: MDACC To: per.zetterberg@orebroll.se Cc: linac-eng@plato.aristotle.net Message-ID: <86256C9F.0061F195.00@utm-notesob1.mdacc.tmc.edu> Date: Mon, 30 Dec 2002 11:54:06 -0600 Subject: Re: MLC optical Mime-Version: 1.0 Content-type: multipart/mixed; Boundary="0__=nOtzK6xYln1GjUejWis5jx0W5l4msJZT7MKZ4DtHncgDjsvkuzX95aZA" Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: erymes@mail.mdanderson.org X-Lotus-FromDomain: MDACC To: per.zetterberg@orebroll.se Cc: linac-eng@plato.aristotle.net Date: Mon, 30 Dec 2002 11:54:06 -0600 Subject: Re: MLC optical Content-Disposition: inline Sender: owner-linac-eng@plato.aristotle.net --0__=nOtzK6xYln1GjUejWis5jx0W5l4msJZT7MKZ4DtHncgDjsvkuzX95aZA Content-type: text/plain; charset=us-ascii Content-Disposition: inline Per, I've done it many times with no problems. If you can do ICs and circuit board work this is no problem, just keep the 500 watt irons for the plumbing. Ed Rymes Accel Tech III M.D. Anderson Cancer Center Houston, TX, USA per.zetterberg@orebroll.se on 12/30/2002 04:30:59 AM To: linac-eng@plato.aristotle.net cc: (bcc: Edward Rymes/MDACC) Subject: MLC optical Ben, Have you had any luck repairing these MLC optical emitters? Are they not extremely sensitive to heat, making it difficult to solder on to the PCB without damaging them at the same time? Thanks Per --0__=nOtzK6xYln1GjUejWis5jx0W5l4msJZT7MKZ4DtHncgDjsvkuzX95aZA Content-type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-transfer-encoding: quoted-printable =D6rebro, Sweden -----Original Message----- From: Heil, Ben [mailto:Ben.Heil@hrcc.on.ca] Sent: den 27 december 2002 23:06 To: 'Bob Huff'; linac-eng@plato.aristotle.net Subject: RE: MLC optical Bob; OPTO DIODE CORP. http://www.optodiode.com/ Part Number OD-880F Ben Hamilton, Ontario -----Original Message----- From: Bob Huff [mailto:drumsome@musician.org] Sent: Friday, December 27, 2002 4:20 PM To: linac-eng@plato.aristotle.net Subject: MLC optical Hello, Does anyone have a supplier for the Infra-red emitter diode that is us= ed on the MLC-mk2 optical system? It mounts on varian pcb #889870-02. Thank you for your assistance. Bob -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=3Dsignup Meet Singles http://corp.mail.com/lavalife = --0__=nOtzK6xYln1GjUejWis5jx0W5l4msJZT7MKZ4DtHncgDjsvkuzX95aZA-- 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 31 14:33:47 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18TMWh-0006re-00; Tue, 31 Dec 2002 14:33:47 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by caviar.isi.uu.nl (Postfix) with ESMTP id 7CACE1112F7; Tue, 31 Dec 2002 14:19:44 +0100 (MET) Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA08488 for linac-eng-list; Tue, 31 Dec 2002 06:59:41 -0600 (CST) X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA08484 for ; Tue, 31 Dec 2002 06:59:38 -0600 (CST) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Tue, 31 Dec 2002 09:06:01 -0400 Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: MLC Interlock Date: Tue, 31 Dec 2002 08:59:42 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Precedence: bulk *** EOOH *** X-Authentication-Warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Reply-To: From: "Greg MacKinnon" To: "LinacEng" Subject: MLC Interlock Date: Tue, 31 Dec 2002 08:59:42 -0400 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal Sender: owner-linac-eng@plato.aristotle.net Hi Group Since my GEN6 update I have been having intermitted MLC INTERLOCKS. The interlock occurs most frequent when a treatment is taking a PV. There are no message errors reported at the MLC controller computer but in the status window of the MLC on the treatment workstation I have been able to capture the window with the following message: LEAF PLAN AND ACTUAL DO NOT MATCH NOT IN TREAT MODE All leafs are still green indicating correct position and all goes back to ready steady without any operator action. To continue the treatment the therapist have the message on the console to hit enter to continue treatment. So it looks like some kind of timing problem but not sure. Other relevant information, I have a 2100C/D with 80 leaf MLC & 600C with 56 leaf MLC both with a mark II liquid crystal PV. Varis has been recently updated to GEN 6.2, Consoles still at rel 5.4. The treatment workstations update to a Dell Optiplex GX260 at 1.8Ghz. MLC Controller is a Dell Optiplex GXa at 233 Mhz and the Console PC is a Dell Optiplex GXi at 166Mhz. Any suggestions would be appreciated. Thanks Greg __________________________________________ Greg MacKinnon, C.E.T. Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George Street Sydney, Nova Scotia, Canada B1P 1P3 tel: (902) 567-8076 fax: (902) 567-8075 email: mackinnongreg@cbdha.nshealth.ca 1,, X-Coding-System: iso-8859-1-unix Mail-from: From owner-linac-eng@plato.aristotle.net Tue Dec 31 15:49:27 2002 Received: from (caviar.isi.uu.nl) [131.211.144.138] by giraf.radth.ruu.nl with esmtp (Exim 3.12 #1 (Debian)) id 18TNhv-0007vJ-00; Tue, 31 Dec 2002 15:49:27 +0100 Received: from ruumf1.med.uu.nl (ruumf1.med.uu.nl [131.211.184.41]) by caviar.isi.uu.nl (Postfix) with ESMTP id 3148E1112F7 for ; Tue, 31 Dec 2002 15:35:24 +0100 (MET) Received: from conversion.med.uu.nl by med.uu.nl (PMDF V5.2-31 #45106) id <01KQOQVPCRRK8XERSP@med.uu.nl> for kok@radth.med.uu.nl; Tue, 31 Dec 2002 15:41:38 +0100 Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by med.uu.nl (PMDF V5.2-31 #45106) with ESMTP id <01KQOQVNKFSS8XFD7D@med.uu.nl> for kok@radth.med.uu.nl; Tue, 31 Dec 2002 15:41:36 +0100 Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA08488 for linac-eng-list; Tue, 31 Dec 2002 06:59:41 -0600 (CST) Received: from mail.cbdha.nshealth.ca (mail.cbdha.nshealth.ca [142.176.129.245]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA08484 for ; Tue, 31 Dec 2002 06:59:38 -0600 (CST) Received: from ([128.222.7.122]) by mail.cbdha.nshealth.ca (Merak 4.2.3) with SMTP id LPA73855 for ; Tue, 31 Dec 2002 09:06:01 -0400 Date: Tue, 31 Dec 2002 08:59:42 -0400 From: Greg MacKinnon Subject: MLC Interlock Sender: owner-linac-eng@plato.aristotle.net To: LinacEng Reply-To: mackinnongreg@cbdha.nshealth.ca Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f *** EOOH *** Date: Tue, 31 Dec 2002 08:59:42 -0400 From: Greg MacKinnon Subject: MLC Interlock Sender: owner-linac-eng@plato.aristotle.net To: LinacEng Reply-To: mackinnongreg@cbdha.nshealth.ca X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f Hi Group Since my GEN6 update I have been having intermitted MLC INTERLOCKS. The interlock occurs most frequent when a treatment is taking a PV. There are no message errors reported at the MLC controller computer but in the status window of the MLC on the treatment workstation I have been able to capture the window with the following message: LEAF PLAN AND ACTUAL DO NOT MATCH NOT IN TREAT MODE All leafs are still green indicating correct position and all goes back to ready steady without any operator action. To continue the treatment the therapist have the message on the console to hit enter to continue treatment. So it looks like some kind of timing problem but not sure. Other relevant information, I have a 2100C/D with 80 leaf MLC & 600C with 56 leaf MLC both with a mark II liquid crystal PV. Varis has been recently updated to GEN 6.2, Consoles still at rel 5.4. The treatment workstations update to a Dell Optiplex GX260 at 1.8Ghz. MLC Controller is a Dell Optiplex GXa at 233 Mhz and the Console PC is a Dell Optiplex GXi at 166Mhz. Any suggestions would be appreciated. Thanks Greg __________________________________________ Greg MacKinnon, C.E.T. Linear Accelerator Service Technologist Cape Breton Cancer Centre 1482 George Street Sydney, Nova Scotia, Canada B1P 1P3 tel: (902) 567-8076 fax: (902) 567-8075 email: mackinnongreg@cbdha.nshealth.ca

    The overshoot phenomenon in = step-and-shoot=20 IMRT delivery.

    Basically, there is a fixed amount of = time for=20 the MLC controller to indicate to the clinac that the gun should grid = off the=20 beam (perhaps ~ 20 - 40 msec).  When the first segment is finished, = it may=20 take 600MU/60sec * 0.04 sec =3D 0.5 MUs before the gun is gridded.  = You=20 didn't state what the total MUs were for your test, but if they were = around 1 MU=20 then the first would get 0.25 MUs; the middle two would be skipped = (since the=20 OFF signal hadn't arrived yet) and the final segement would get=20 the left over 0.25 MU.    =20
     
    The is=20 just a guess on my part but might be what you are = seeing.
     
    Pat=20 Cadman
    saskatoon Cancer Centre
    (306)655-2696
    pcadman@scf.sk.ca
    -----Original Message-----
    From:=20 owner-linac-eng@plato.aristotle.net=20 [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of=20 JoseV
    Sent: Thursday, December 05, 2002 11:17 = AM
    To:=20 Linac Question
    Subject: Dynamic MLC in = IMRT

    Hi group,
     
     
    For those IMRT expert.
    I am trying to investigate the = limitation of=20 clinac at performing IMRT, we are in the commissioning process and we = were=20 wondering what is the minimum dose at a maximum R/R it can be=20 delivery? we had a 10x10 field and = a 1cm leaf=20 off the field moving in/out with a plan of 4 segment, when we set up = for 4MU=20 at 300 RR it deliver 1mu for each segment, but when we set up the=20 same dose for higher RR 600rr = it doesn't=20 make it, it delivers 1mu in the first segment and the 3 remaining in a = second=20 segment instead of one for each segment, is this a limitation of the = equipment=20 or is there anything you can do in order to control the delivery of = the dose=20 at high RR,
     
    Please advice,
     
    Thanks.
     
    Jose Villegas
    Baptist Hospital
    Miami, FL
    305-596-1960=20 X:6907